CN108093812A - Tool collaboration visual information perceives the intelligent gardens machine of more sequentially formation charging methods - Google Patents

Abstract

An intelligent garden machine with collaborative visual information perception of multiple sequential formation charging methods, a fixed power supply component with automatic charging pins inserted into the bottom plate of the component is connected to a photovoltaic power generation charging pile and a guide road with electromagnetic pulses laid on the ground along the mowing border The wire siege circle is provided with a compass compass on the multiple garden machines placed in the guide wire siege circle with electromagnetic pulses laid on the ground along the border of the mowing work area so as to press the vertical and horizontal directions during operation; Collaborate with visual information to sense the communication remote control of multiple sequential formation charging, equipped with a detection head that senses the electromagnetic field of the wire, multiple cameras, lasers and ultrasonic range finders, and remotely controls the order of each garden working machine to charge through the Beidou positioning of the Internet; The intelligent charging management circuit is adopted, and different charging strategies are adopted according to the actual power status of the battery pack to ensure the operation of the system; the photovoltaic power generation charging pile has an energy-saving effect.

Description

Intelligent garden machine with collaborative visual information perception multiple sequential formation charging method

technical field

The invention relates to a lawn mower used for mowing lawns in courtyards, parks, roadsides and other places, and is an intelligent lawn mower with a charging assembly for automatically inserting and pulling out a contact piece with a charging pin. It includes the anti-collision safety device at the front of the lawn mower chassis, the logarithmic spiral brake with anti-collision safety and self-stopping, and the low-vibration leaf blower and dust bag. Bracket and tie-in and the dust outlet of the main body shell are added with a soft piece, the blowing impeller is added with a blade, the circuit is added with insurance and double switches, and noise reduction and vibration reduction and honeycomb, the roller is changed to steerable, and the comprehensive design of blowing suction and weeding On the basis of the multi-functional lawn mower with the head and the hose reel of the liquid pipeline for watering, fertilizing and spraying, and the intelligent lawn mower with automatic charging pin insertion and extraction of the contact piece assembly, the improved synergistic An intelligent garden machine that perceives multiple sequential charging methods based on visual information.

Background technique

Lawn mowers are widely used to mow grass in the manner chosen by people. When some pedestrians like and are used to using lawn mowers, they put a little more force on the rear upper armrest and have a feeling of leaning and pressing down, which virtually increases the possibility of the front wheels being tilted and suspended. ; and the design of the lawn mower should also take care of the user's comfort and convenience as much as possible. Lawn mowers with gasoline engines also have less front warp because the engine is heavier. However, there is also the undesired phenomenon of front warping, especially the front warping of the left front wheel. For electric lawn mowers, since the electric motor is lighter than the engine, and the central shaft of the electric motor must drive the lawn mower with a large turning diameter, it cannot be installed too far forward, so the front wheel of the electric lawn mower is more common. . Besides, according to relevant standards such as GB4706.78-2005; IEC60335-2-77-2002; degree specification requirements. To add a counterweight sand pot to the front of the whole machine, the installation needs to change the chassis, add three holes, and add sand and stones, which is more troublesome. Because the counterweight is heavier, the transportation cost is also higher. There is also a common mowing machine without a knife, and the mowing head with a nylon thread is driven by a series-excited motor. When the mower is installed, and start to make the nylon wire in the reel 25-3 rotate, the grass can be mowed. When the wire is short, the operator presses it, and the aluminum head 25-3b of the reel touches the ground, so that the reel spring 25-1 is compressed, and the reel 25-3 is rotated, so that the nylon wire 134 in it passes through. Thread eye insert 25-6, and unwrapping. The excessively long thread that is let out is trimmed by blade 127. When not in use, the blade cover 126 is placed on the blade 127 for protection. The mowing head has a good mowing effect, and is lighter and more energy-saving than a knife, but it cannot be installed on an ordinary lawn mower with wheels due to the need to pier and set off the wire.

Common lawn mowers widely use engines and have a wide range of activities, but they consume fuel and pollute the environment with exhaust. Some walkers like to use electric lawn mowers, but limited by the power supply, the widespread adoption of such lawn mowers is also limited. Just like a car needs a gas station, an electric lawn mower also needs a charging station. The market needs an improved intelligent lawn mower with automatic charging pin insertion and extraction of the contact piece assembly so that it can be reliably and automatically plugged in and charged; It is a difficult problem to plug and unplug charging dynamically. The innovative concept of invention lingers for a long time like a ghost. Using the life experience of SENI.ENGI. The intelligent garden machine with collaborative visual information perception and multiple sequential formation charging methods came into being, which solved the problem of frequent manual charging due to undurable batteries and the problem of reliable plug-in and plug-in charging with trace follow-up. There are still many places to be improved. If you imagine a device, such as the center pull wire to pull the rotating rod, if you can make the aluminum head of the winding wheel unwind, you can use a light and handy mowing head on the lawn mower to save power; and if, The counterweight does not need a sand pot or an improved water tank. I want to install a lithium battery on the lawn mower; it is best to install a reel that can be accessed freely; the damping of the reel sometimes fails and is unreliable. Everyone knows the reel. The occasional failure of the grass is a problem in the world; fortunately, there is a newly developed pipe winding device that can be pulled and stopped, that is, a reel. Therefore, a new type of biased series-excited motor electric lawn mower is the existing mowing head. There is also a lawn mower with a reel, which came into being. Its comprehensive effect is to expand the scope of use, strengthen the moisture conservation and safety of pressing grass, as well as save fuel and protect the environment.

Although there is a safety regulation for lawn mowers to stop within three seconds, the reliability of the original brake is not long-lasting; the pulley is still slipping due to some brake motors; some radial centrifugal throwing blocks have no multiple teeth, although the test passes, but it lasts a long time If it is polished, it will slip; during the braking process, the radial direction still has the centrifugal resistance effect when rotating. If it is changed to the axial direction, there will be no centrifugal resistance and the brake will be fast; Contrary to expectations, it would be a great benefit if the boring brake is changed to one piece and one relaxation brake. The function wave disc brake intermittently tightens and pulsates to disperse energy, which is good for braking and prolongs the life of the friction block. Red, and the friction block is not easy to be red when it is loosened and tightened. Sometimes there are hard steel objects hidden in the grass, which occasionally injures the knife or overturns the lawn mower; if the limit switch is triggered when the front collides with the rubber cover of the live support and the sliding rod of the live support retracts, it can be beneficial to avoid collisions. Anti-collision security and secure braking, mowing and mowing are optional, and there are wires and a large area. These are easier said than done, and they have always been a long-standing problem for electric lawn mowers.

Why use a cord reel? Because of the long wires scattered on the ground, when the electric lawn mower mows back and forth, sometimes it is accidentally stepped on by feet or crushed by wheels, which affects safety; If the line is not long enough to suspend mowing, or manually manage the line, it increases safety hazards. Why put a cord reel on an electric lawn mower? Anyone who has used an electric lawn mower knows that weeds often leak when mowing, and they have to be re-mowed. Especially when the environment is complex, such as bushes mixed with the lawn, it is necessary to take several steps forward and several times and repeat the mowing from left to right. Grass; if the reel is placed far away, the wires near the lawn mower cannot be pulled in and out synchronously with the pull and stop in time, or they will fall to the ground softly, and there is a danger of being stepped on or crushed by wheels, or they cannot be pulled in and out in time. In and out lines. Installing the wire reel on the electric lawn mower is not only to replace the counterweight, but also to move forward and backward freely. The wire reel is installed in the front and middle of the lawn mower. High, so it is not easy to be stepped on or crushed by wheels.

If the wire reel is changed to a water pipe, it is a hose reel; most of the lawn mower is idle for a year, if a hose reel is installed on the lawn mower, the water in the pipe can be used for irrigation; the medicine in the pipe can prevent insects; The fertilizer can be fertilized with water; it would be great if one machine can be used for multiple purposes.

Blowers are widely used to clean leaves in the manner chosen by people's preferences. Some pedestrians like and are used to using the blower, especially when they encounter corners, look left and right and turn around to blow and suck. If the rollers that touch the ground are changed to steerable, it will be convenient to work; Different heights and different working angles require the auxiliary handle to be adjustable, but the original fixed auxiliary handle is not suitable for the hand. The fuse of the power supply is often not suitable for a blower and aspirator because of multiple channels, and the original blower and aspirator lacks overload protection for the internal circuit. If insurance and double switches are added, it will be safer. Low vibration and low noise also need to be further optimized; if consideration is given to adding vibration-reducing foam plastics outside the motor and adding shock-absorbing and sound-absorbing materials and honeycomb structures to multiple places in the blower, it will have a certain effect; The vibration and noise of the grass machine are largely rooted in the precision and shape tolerance of the power and tools. It is desirable to improve the coaxiality of the motor and the blowing impeller and measure the dynamic balance, but the pursuit of blowing and suction machines The low vibration and low noise is actually a long-standing problem left over. The dust bag bracket and tie-in are easy to slip if installed too much, and need to be improved; the dust outlet of the main body of the blower and suction machine, sometimes especially when the wind is strong when changing direction, need to add soft blades; The large inhalation that is easy to block should be effective; and if the single extension tube is changed to multiple extension tubes or flexible folding tubes, the volume can be further reduced and the transportation efficiency can be improved. The blower is always heavy to be carried by the operator, and the accumulation bag is very small, the power battery is small, and the working time is short. If the blower is placed on the lawn mower, it is a technological progress from carrying it to rolling on wheels. It not only reduces the burden on people, but also the grass bag on the lawn mower can be much larger, and the continuous working time is long.

Contents of the invention

The invention relates to a lawn mower used for mowing lawns in gardens, parks, roads and other places, a new type of biased series motor electric lawn mower, which has both a mowing head and a cord reel. The lawn mower is mainly equipped with three major assemblies on the ordinary lawn mower, that is, the battery bracket assembly, the cutting device assembly for pulling the rotating rod and the mowing head, and the cord reel assembly; the bracket is provided with a removable bracket for placing batteries at the front of the lawn mower; the cutting device is located in the middle of the mower, and there are two types of cutting devices, one is to cut The mowing knife in the center of the lawn mower is equipped with a plastic knife seat for the fan. The other is to transplant the nylon wire of the winding wheel in the runner on the original lawn mower to the lawn mower, whether it is installed in the center of the lawn mower But it is dragged by the offset series excitation motor; because the offset series excitation motor gives up the position of the central axis, it is possible to make the central axis hollow, and the center pull wire of the present invention can be used to pull the rotating rod to make the reel Unwinding, thus breaking the history that the nylon wire cutting device of the mower head cannot be used for lawn mowers; and because of the use of a winding device with multiple damping mechanisms, multiple complements are more reliable, that is, the slow retraction by the centrifugal Device, side piston damping device, position lock and ball position lock, anti-resistance mechanism, pipe rower angle groove damping mechanism complementary winding device, thus greatly increasing the mowing range of ordinary electric lawn mowers with wires. Perhaps it can be said that a lawn mower with both a mowing head and a wire reel has been created, such a new technology field; The grass keeps moisture and the slope is 16.7 degrees safe, and it saves fuel and energy without using an internal combustion engine and is conducive to RoHS emission and environmental protection. The main improvement is that the front part of the lawn mower is equipped with a removable bracket for placing batteries; There are two types available, one is a knife with a fan plastic knife seat, and the other is to transplant the nylon wire of the winding wheel in the runner on the original lawn mower to the lawn mower; central axis position, the center pull wire of the present invention can be used to pull the rotating rod, so that the aluminum head of the winding wheel can be set out, thereby breaking the history that the nylon wire cutting device of the mowing head cannot be used for lawnmowers; Winding devices with multiple damping mechanisms, namely, the winding devices that are complementary to the centrifugal slow retraction device, side piston damping device, position lock, reverse resistance mechanism, flap compression spring damping mechanism, and tube rower angle groove damping mechanism , thus greatly increasing the mowing range of ordinary electric lawn mowers with wires. Perhaps it can be said that a lawn mower with both a cutting head and a reel has been created, such a new technological field. Just like the spring silkworms are endless, the improvement is endless; further improve the anti-collision safety and the pursuit of ensuring braking; when the front collides with the rubber skin of the live support and the sliding rod of the live support retracts, the limit switch is triggered to avoid collisions ; The function wave disc brake is an uneven disc that fluctuates according to the waveform, so as to facilitate the brakes one by one. Its parameters are computer molded and can be produced in batches; The shaft plate of the raised friction block; and the pulley with internal multiple internal teeth; Optional, extra large play area for an electric lawn mower.

Because the present invention makes the anti-collision brake on the basis of the series-excited motor electric lawn mower improved several times, so for the description is clear, first describe the electric lawn mower with the mowing head and the reel, and then describe the anti-collision brake. Hitting the brakes, the technical solution adopted by the electric lawn mower to solve its technical problems is:

An electric lawn mower with a series motor is a lawn mower with both a mowing head and a cord reel. It is mainly equipped with three major assemblies on an ordinary lawn mower, that is, a battery bracket assembly, There is a cutting device assembly with a pulling rotating rod and a mowing head in the middle of the lawn mower driven by a series motor, and a wire reel assembly; The front part is equipped with a bracket for placing the battery that can be pulled out; there are two types of cutting devices, one is on the mowing knife in the center of the lawn mower, and a knife seat of a plastic fan is provided for wind guidance and insulation; The other is to transplant the nylon wire of the winding wheel in the runner on the original mower to the lawn mower. Because the biased series excitation motor gives up the position of the central axis, it is possible to make the central axis hollow and use this machine. The invented central pull wire pulls the rotating rod to let the winding wheel unwind, thereby breaking the history that the nylon wire cutting device of the mowing head cannot be used for the lawn mower; A lawn mower with a mowing head and a reel is commonly called a series-excited motor electric lawn mower; Sliding seat (90c), and the live bracket (90) that can be drawn out is provided with slide bar (90a) and limit (90b), and the storage battery with charger and inverter is formed, described live bracket The slide bar (90a) of (90) is sleeved in the fixed slide seat (90c) of the support seat, when pulled out and positioned by the limit position (90b), the battery can be placed thereon; The cutting device assembly provided in the middle of the series motor electric lawn mower described above is driven by a series motor that is not installed in the center but is biased; there are two kinds of cutting devices, one is a plastic motor with a fan The knife of knife seat, another kind is to use the nylon thread of the reel in the runner of the mowing head on the original mowing machine as knife to the mower; Described fan plastic knife seat (85) is provided with There is a spline groove (85a), which matches the spline (82a) of the large pulley (82); the knife seat 85 is provided with a plurality of fans (85d), and is provided with a plurality of small through holes (85c ), preferably a hexagonal hole; and the fan is provided with a cutting edge (85b); moreover, the knife seat is preferably made of non-conductive material, such as plastics, especially nylon plus fiber; the string The middle part of the excitation motor electric lawn mower is provided with a cutting device assembly with a mowing head and a central pull wire pulling rotating rod, which consists of an inner frame (76), a series excitation motor (77), a motor pulley (84), and a belt (83 ), a large pulley (82), a backguy (81), a pulling rotating rod (78), a thrust bearing (79), a labyrinth pulling turret (80), and a mowing head; and the mowing head , also known as the coiled rope mowing assembly containing the base of the wire box, consists of the mowing head shell (24-3), the reel spring (25-1), the reel (25-3), the nylon wire ( 134), guard coil (123), wire eye insert (25-6), wire box loam cake (25-7) is formed; Described blade (127) is located on the circumference of lawnmower cutting disc, without When putting the blade cover (126) on the blade (127 ); the feature of the nylon thread (134) is that there is a notch (34a) on its section, at least one, or more, such as 3; the notch is helical along the nylon thread, And be equally distributed along the circumference; Described notch is triangular; Described inner frame (76), is contained in the top of the cutting disk of lawnmower chassis, in the biased serial excitation motor (77 ) on the shaft, is provided with motor pulley (84), and by belt (83), drives the large pulley (82) whose centerline is at the cutting disc center of chassis; described large pulley (82) drives described mowing head; the large belt pulley (82) is connected to the grass head shell (24-3), the thread eye insert (25-6), and the line box loam cake (25-7) is connected successively, and the grass head shell (24 -3) A winding wheel (25-3) is pressed inside through the winding wheel spring (25-1), and the winding wheel (25-3) is equipped with a nylon thread (134) and a protective coil 123; the pulling rotating rod 78 is connected with the reel (25-3), or is fixedly connected, or is connected with a shaft retaining ring, or is threaded, or is connected with a thrust bearing; The other end of the rod (78) is connected to the labyrinth pull turn frame (80) through the thrust bearing (79), and the steel wire rope of the stay wire (81) is set on the pull turn frame (80). One end, and the other far end of backguy is connected with the pay-off joystick (81b) of lawnmower; It is characterized in that described labyrinth pull turret (80) is square frame shape, and it is provided with The hole (80c) for pulling the rotating rod has a long hole (80b) on its side and a central hole (80d) on it, especially a labyrinth (80a) on it, which has multiple detours connecting the long holes and the center hole, so that the pull wire is put into the pull turret (80) and enters the center hole; the circuit diagram of the series-excited motor electric lawn mower mainly consists of insurance RC, switch K, inductance L3, inductance L4, capacitor C, and setting There is the series excitation motor M of winding L1 and winding L2, and starting button AQ and handle (75), and diode Di, resistance R1, R2, light-emitting tube LED, winding device and plug socket are formed; It is characterized in that described The head of the handle 75 is provided with a hook; the start button AQ is provided with a long sheet QA2, and is connected to the pressure block QA1 through the long sheet, and is also provided with a limit sheet QA3; when the start button AQ is pressed, and When the handle 75 is pulled, the hook provided on the head of the handle 75 presses the briquetting block QA1 of the start button AQ, and makes the briquetting block QA1 of the start button AQ press the switch K to start; When closing, as long as the handle 75 is pulled, each part can be elastically reset; the wire winder of the lawn mower is a wire winder with a variety of damping mechanisms, that is, a centrifugal slow retraction device, a side piston Damping device, position lock and ball position lock, anti-resistance mechanism, the cable winder complementary to the angle groove damping mechanism of the pipe rower, are more reliable because of multiple complementarities; the cable winder may be located at the front or middle of the lawn mower, You can also choose to use several or those winders with damping mechanisms, because there is space around the fixed large gear (4) to place multiple small teeth wheel (9) to connect a plurality of damping mechanisms and position locks; or the battery can be replaced; the shell of the winder can be selected to be connected by a long pin (18) and a support (19) that can be rotated slightly within 180 degrees ) is placed on the lawn mower for assembly; it can also be assembled by setting a vertical shaft at the front or middle of the lawn mower; the vertical shaft can be provided with a joint with double slip rings and carbon brushes; when the operator pushes the lawn mower When the wire winder is out of the wire; when the pull is stopped, the wire will be locked; when the wire is pushed backwards, the wire winder will automatically rewind the wire; if it is too fast, the various functions of each damping device will strengthen the slow retraction damping, so that it can advance and retreat freely.

The electric lawn mower is a commonly used garden electric tool. It uses a motor as a drive, and drives a main shaft with a blade through a transmission structure such as a belt or a gear to perform operations. If it is necessary to stop during the operation, the power supply is cut off at first, but the blade will still run at high speed for a period of time under the action of inertia, which has potential safety hazards. For this reason, a brake device is needed to control its movement to avoid personal injury.

Now let’s talk about the series-excited motor electric lawn mower with chassis anti-collision safety belt function wave disc brake, and finally talk about the intelligent lawn mower with automatic charging pin insertion and pull out of the charging assembly of the contact piece, which solves its technical problems. Technical solutions.

A series-excited motor electric lawn mower with a chassis anti-collision safety belt with a function wave disc brake, which includes an anti-collision safety device at the front of the lawn mower chassis and a brake at the middle of the lawn mower chassis Series-excited motor electric lawn mower; lawn mower, a lawn mower with both a grass head and a reel, is equipped with three major assemblies on the ordinary lawn mower, and is equipped with a charging and inverter The pull-out bracket assembly of the battery is provided with a cutting device assembly with a pulling rotating rod and a mowing head in the middle of the lawn mower driven by a series motor, and a wire reel assembly; the cutting device assembly It includes the fan plastic knife holder with noise-reducing holes and cutting edges, and transplants the nylon wire of the winding wheel in the runner on the original lawn mower to the lawn mower; because of the biased series excitation motor, the center is out of the way shaft position, use the center pull wire to pull the rotating rod to unwind the reel; the nylon wire is also improved to a noise-reducing wire with a triangular spiral groove; the reel assembly is equipped with various dampers on the lawn mower The mechanism is composed of a centrifugal slow retraction device, a side piston damping device, a position lock and a ball position lock, a reverse resistance mechanism, a trap spring damping mechanism, and a pipe rower angle groove damping mechanism. The machine circuit is mainly manipulated by the start button AQ and the handle (75), and is provided with insurance; The movable support (90) that is provided with slide bar (90a) and limit (90b) is formed, and the slide bar (90a) of described live support (90) is sleeved on the fixed sliding seat ( 90c), after being pulled out and positioned by the limit position (90b), place the battery with charger and inverter on it; The cutting device assembly is driven by a series excitation motor that is not installed in the center but is biased; there are two kinds of cutting devices, one is a knife with a fan plastic knife seat, and the other is a mowing head; Described fan plastic knife seat (85) is provided with spline groove (85a), and it cooperates with the spline (82a) of large pulley (82); Described knife seat 85 is provided with a plurality of fans ( 85d), and is provided with a plurality of small through-holes (85c), and it is hexagonal hole; And described fan is provided with edge (85b); Moreover, described knife seat is made of non-conductive material, is plastic , is nylon plus fiber; The middle part of the electric lawn mower of the series excitation motor is provided with a cutting device assembly with a mowing head and a center pull wire pulling the rotating rod, consisting of an inner frame (76), a series excitation motor (77) , motor pulley (84), belt (83), large pulley (82), backguy (81), pull rotating rod (78), thrust bearing (79), pull turret (80) with labyrinth, and mowing head and the described mowing head, also known as the coiled rope mowing assembly containing the wire box base, consists of the mowing head shell (24-3), the reel spring (25-1), and the winding Wheel (25-3), nylon thread (134), backing coil (123), thread eye insert piece (25-6), wire box loam cake (25-7) is formed; Described blade (127) is located at On the circumference of the cutting disc of the lawn mower, put the blade cover when not in use (126) is placed on the blade (127); the inner frame (76) is installed above the cutting disc of the lawn mower chassis, and on the shaft of the biased series excitation motor (77), a motor Belt pulley (84), and by belt (83), the big pulley (82) that drive centerline is at the cutting disc center of chassis; Described big pulley (82) drives described mowing head; Described big pulley ( 82) It is connected with the head shell (24-3), the thread eye insert (25-6), and the upper cover of the wire box (25-7) in sequence, and passes through the winding wheel in the head shell (24-3) The spring (25-1) is press-fitted with a reel (25-3), and the reel (25-3) is equipped with a nylon thread (134) and a protective coil 123; the pulling rod The 78 is connected with the reel (25-3), or is fixedly connected, or is connected with a shaft retaining ring, or is threaded, or is connected with a thrust bearing; the other end of the pulling rotating rod (78), Through the thrust bearing (79), it is connected with the labyrinth pull turn frame (80), and one end of the steel wire rope of the stay wire (81) is set on the described pull turn frame (80), and the other end of the stay wire The far-end head links to each other with the pay-off joystick (81b) of the lawnmower; the described pull turn frame (80) with labyrinth is square frame shape, and the hole (80c) that pulls turn lever is provided below it, and its side Establish elongated hole (80b), establish center hole (80d) on it, and be provided with labyrinth (80a) above it, it has a plurality of detours, connect described elongated hole and center hole, so that backguy is put into draw turn frame ( 80) enter the central hole; the section of the nylon thread (134) has a notch (34a), at least one; the notch is helical along the nylon thread, and it is evenly distributed along the circumference and the notch is triangular; the circuit of the series motor electric lawn mower is mainly composed of a safety RC, a switch K, an inductance L3, an inductance L4, a capacitor C, and a winding L1 and a winding L2 Series excitation motor M, and start button AQ and handle (75), and diode Di, resistance R1, R2, luminescent tube LED, wire winder and plug socket are formed; The head of described handle 75 is provided with hook head ; The start button AQ is provided with a long sheet QA2, and is connected to the briquetting block QA1 through the long sheet, and is also provided with a limit piece QA3; when the start button AQ is pressed and the handle 75 is pulled, the handle The hook head that the head of 75 is provided with presses the briquetting block QA1 of start button AQ, and makes the briquetting block QA1 of start button AQ press switch K, just can start; When wanting to close, as long as pull handle 75, each The parts can be elastically reset separately; the feature of the series-excited motor electric lawnmower with the chassis anti-collision safety belt function wave disc brake is: it contains the anti-collision safety device located at the front part of the lawn mower chassis. On the described live support (90) of described support assembly, by being installed on the fixed slide seat (90c) of the support base of lawn mower chassis, and can pull out and be provided with slide bar (90a) and limit position (90b) of the living bracket (90), the sliding rod (90a) of the living bracket (90) is sleeved on the bracket seat In the fixed sliding seat (90c), when pulled out, it is positioned by the stopper (90b), which is characterized in that the live bracket (90) is covered with rubber skin, and the stopper (90b) is provided with a stopper switch, so that when the front side collides with the outer rubber skin of the living bracket (90) and the slide bar (90a) of the living bracket (90) is retracted, the limiting position provided by the limiting position (90b) is triggered Switch, to form an anti-collision safety device and insurance; The brake in the middle part of the mower chassis of the series-excited motor electric lawn mower of the brake located at the middle part of the mower chassis includes an inner frame (76), Installed on the top of the cutting disc of the mower chassis, a biased series motor (77) is installed on the inner frame, and a motor pulley (84) is provided on the shaft of the biased series motor (77). ), and through the belt (83), drive the pulley (204) whose centerline is at the center of the cutting disc of the chassis; Screw (216) fixes a function wave disc brake pad (206) used for braking; a brake fixing plate (207) is fixed on the inner frame (76), and is fixed with hexagonal screws (218) and hexagonal nuts (219) ; The brake fixing plate (207) is provided with a movable brake lever (208), which is connected by rivets (215) and can rotate flexibly; (223) is connected, by acting on the brake extension spring (210) on the brake fixed plate (207) and the brake lever (208) to make the brake on the friction plate (209) and the pulley (204) Function wave plate brake pad (206) braking tension; Brake bar (208) is connected with joystick with a drag cable (211), so that brake clutch.

After several improvements in anti-collision and braking, the series-excited motor electric lawn mower with a chassis anti-collision safety belt and a function wave disc brake is characterized in that: the function wave disc brake pad (206) fluctuates according to the waveform Uneven discs, in order to facilitate the braking effect of one piece at a time, are characterized in that their undulating waveforms are according to the sine wave equation: dimension SDi=C*SIN(TRAJPAR*360*N); in the formula, dimension SDi is a sequence of dimension numbers No., SIN is a sine function, TRAJPAR is a trajectory function; parameter C is a real number, assigned between 0.01-1.2 according to specific working conditions; C is also called wave height; parameter N is an integer, and is between 2-200 according to specific working conditions The selected value, N is also called the wave number; the size SDi is the default size for computer modeling.

Re-modify and improve the anti-collision and braked series-excited motor electric lawn mower with chassis anti-collision safety belt function wave disc brake, which is characterized in that: the above-mentioned wave-shaped ups and downs that are beneficial to one piece and one relaxation brake The uneven function of the wave disc brake pad (206) is characterized by its undulating waveform. For various models, computer simulation and various experiments are required. The wave height C and the wave number N will be matched; the wave height C is 0.1-0.9, The wave number N is 3-99.

Re-modify and improve the anti-collision and braked series-excited motor electric lawn mower with chassis anti-collision safety belt function wave disc brake, which is characterized in that: the above-mentioned wave-shaped ups and downs that are beneficial to one piece and one relaxation brake The uneven function wave disc brake pad (206) is characterized in that its undulating waveform is a trigonometric function, and the trigonometric function is a cosine function, a cotangent function, or a tangent function.

Re-modify and improve the anti-collision and braked series-excited motor electric lawn mower with chassis anti-collision safety belt function wave disc brake, which is characterized in that: the above-mentioned wave-shaped ups and downs that are beneficial to one piece and one relaxation brake The uneven function of the wave disc brake pad is an inverse trigonometric function, and its trigonometric function is either an arcsine function, an arccosine function, an arctangent function, or an arccotangent function.

The series-excited motor electric lawn mower with a chassis anti-collision safety belt and a function wave disc brake after the anti-collision brake is improved, is characterized in that: the function wave disc brake pad (206) is formed according to the function wave waveform The undulating and uneven discs are used to facilitate the braking effect one by one, and are characterized in that the undulating waveform is according to a function, and the function may be a power function, an exponential function, or a logarithmic function.

The series-excited motor electric lawnmower with anti-collision safety belt function wave disc brake after the improved anti-collision brake is characterized in that: the function wave disc brake pad (206) is uneven with ups and downs. Disc, in order to facilitate the braking effect one by one, it is characterized by its undulating uneven disc or a plurality of convex and concave, or rough surface, or convex and concave grid, or a plurality of convex and concave and function waveform Combo cross.

The series-excited motor electric lawn mower with a chassis anti-collision safety belt function wave disc brake after the improved anti-collision brake is characterized in that: the brake of the electric lawn mower is provided with an axial push The shaft disk (204b) of the friction block (204c) whose function is gradually raised, the feature of the described friction block (204c) is that it is a friction block that gradually raises along the axial direction, or it is a parabola-shaped gradually The friction block tends to be raised, or the friction block is involute and gradually raised, or a plurality of convex-concaves, or a rough surface, or a convex-concave grid, or a combination of a plurality of convex-concave and function wave forms.

The series-excited motor electric lawn mower with a chassis anti-collision safety belt function wave disc brake after the improved anti-collision brake is characterized in that: the brake of the electric lawn mower is provided with multiple internal teeth (204t ) pulley (204), characterized in that at least one inside of the pulley is provided with multiple internal teeth (204t).

The series-excited motor electric lawn mower with a chassis anti-collision safety belt function wave disc brake after the improved anti-collision brake is characterized in that: the brake of the electric lawn mower is provided with multi-curved teeth (209t ) radial centrifugal throwing block (208t), characterized in that at least one of the radial centrifugal throwing block (208t) is provided with multi-arc teeth (209t).

The equation and the modeling method of the technical solution that the present invention solves its technical problem are:

Use PPO/ENGINEER WILDFIRE drawing software, set up a new working directory, create new parts, and sketch 2 concentric circles.

Open the variable section sweep (Var Sect Sweep) command, select the above 2 circles as the sweep trajectory and the reference trajectory.

Draw a straight line parallel to the plane of 2 circles, the length L=(D-d)/2, and the projection line corresponding to the edge of the circle.

Establish parameter (PARAMETER) 1: C real number (rea1number), which can be assigned a value between 0.01-1 according to specific working conditions, such as 0.3; C is also called wave height.

Establish parameter (PARAMETER) 2: N integer (integer), you can choose a value between 2-100 according to specific working conditions, such as 13; N is also called wave number.

Establish relationship (RELATION), that is, the sine wave equation of the present invention is:

SDi＝C*SIN(TRAJPAR*360*N)

In the above formula, i is the serial number of the dimension number; SIN=SINE, sine function; TRAJPAR, track function.

Then, use commands such as rotate, merge, and materialize, that is, modeled as a function wave plate.

Then input the formula into CNC machining center, use CIMATRO or MASTCAM to make steel mold, or use milling machine, planer and EDM. When EDM is used, input the above equation into the CNC machining center, and the tungsten copper electrode must be produced first.

There are many manufacturing methods; or use the die-casting aluminum alloy manufacturing method to mass-produce the function wave plate with a die-casting machine with a cold press chamber. The base material is aluminum alloy ZL109 or AC8A, and anti-friction material is added. Or use the manufacturing method of die-casting zinc-aluminum alloy, mass-produce it with a die-casting machine with a hot-press chamber, and add friction-resistant materials to the base material in chaos. Or make molds with the prepared function corrugated disc molding cores, and first make a plurality of wax mold cores, and then cast a large number of functional corrugated disc castings with the wax casting method.

It should be pointed out that the function waveform of the present invention can also adopt other waveforms, such as other mathematical functions such as logarithmic spiral or other slightly smooth waveforms of non-steep broken lines.

In order to make up for the deficiencies caused by the existing mechanism of the blower and aspirator, the low-vibration leaf blower is improved, so that the rollers touching the ground can be turned to make it more convenient; the adjustable auxiliary handle is more handy; the circuit inside the blower is safer ; Low vibration and low noise are optimized; the dust bag bracket and tie-in are firm and not slipping; the dust outlet of the blower and suction machine is softer; the blowing impeller and blade can cut easily blocked objects; Extending the tube or flexibly folding the tube to further reduce the volume, the present invention provides an improvement of certain blowing machines.

A lawn mower with a chassis blade broom for blowing, watering, fertilizing, spraying, and holding brakes, which is a coil with a blowing machine and a logarithmic spiral brake and a liquid pipeline for watering, fertilizing, and spraying It is a multi-functional lawn mower with a tube device; it is equipped with four major assemblies on the ordinary lawn mower, which is a battery bracket assembly with a charger and an inverter, and is equipped with a series motor. Cutting device assembly, with hose reel assembly and brake assembly; cutting device assembly; fan plastic knife holder with noise-reducing holes and cutting edge, and putting the mower on the inner wheel The nylon wire of the winding reel is transplanted to the lawn mower; because the biased series excitation motor gives way to the central axis position, the rotating rod can be pulled with the center cable to make the winding reel unwind; the nylon wire is a triangular spiral groove Noise reduction line; the hose reel assembly is equipped with a variety of damping mechanisms, including a centrifugal slow retraction device, a side piston damping device, a position lock and a ball position lock, a reverse resistance mechanism, and a trap spring The damping mechanism is a pipe winder complementary to the angle groove type damping mechanism of the pipe rower; the lawnmower circuit is mainly manipulated by the start button AQ and the handle (75), and is provided with an insurance; the bracket assembly is composed of Be located at the fixed sliding seat (90c) of the bracket seat of lawnmower chassis, and the live support (90) that can pull out is provided with slide bar (90a) and position-limiting (90b) is made up of, and described live support ( 90) the slide bar (90a) is sleeved in the fixed slide seat (90c) of the support seat, when pulled out and positioned by the stopper (90b), place the belt on the live support (90) There is a lithium battery with a charger and an inverter; the cutting device assembly provided in the middle of the series-excited motor electric lawn mower is driven by a biased series-excited motor that is not installed in the center; The cutting device has two kinds, and a kind of is the cutter that fan plastic knife seat is arranged, and another kind is to mow the head; Described fan plastic knife seat (85) is provided with spline groove (85a), and it and big pulley The splines (82a) of (82) are matched; Described knife seat (85) is provided with a plurality of fans (85d), and is provided with a plurality of small through holes (85c), and it is hexagonal hole; And all Said fan is provided with a cutting edge (85b); said knife seat is made of non-conductive material, which is plastic and is fiber-added nylon; the series-excited motor electric lawn mower is provided with a mowing head and a central pull wire to pull the rotating rod The cutting device assembly consists of an inner frame (76), a series excitation motor (77), a motor pulley (84), a belt (83), a large pulley (82), a pull wire (81), and a pull rotating rod (78) , the thrust bearing (79), is made up of the pulling turret (80) of labyrinth and the mowing head; Head shell (24-3), winding reel spring (25-1), winding reel (25-3), nylon thread (134), protective coil (123), eyelet insert (25-6), thread The box upper cover (25-7) is formed; the blade (127) is located on the circumference of the lawn mower cutting disc, and the blade sleeve (126) is placed on the blade (127) when not in use; the internal machine Frame (76), mounted on the cutting disc of the mower chassis Side, on the shaft of the biased series motor (77), a motor pulley (84) is provided, and by a belt (83), the large pulley (82) whose centerline is driven at the cutting disc center of the chassis; The large belt pulley (82) drives the described mowing head; the described large pulley (82) is connected with the mowing head shell (24-3), thread eye insert (25-6), wire box loam cake ( 25-7) are connected successively, and are pressed with reel (25-3) by reel spring (25-1) in the mowing head shell (24-3), described reel (25- 3) A nylon thread (134) and a retaining coil (123) are installed on the top; the pulling rotating rod 78 is connected with the winding wheel (25-3), or is fixedly connected, or a shaft retaining ring is used, or Use reverse thread, or link to each other with thrust bearing; The other end of described pulling rotating rod (78) is connected with the pull turn frame (80) that has labyrinth through thrust bearing (79), and described pull turn frame (80) an end of the wire rope of the backguy (81) is set on the top, and the other far-end head of the backguy is connected with the wire-releasing joystick (81b) of the lawnmower; (80), is square frame shape, is provided with the hole (80c) of pulling rotating rod below it, and its side establishes long hole (80b), establishes central hole (80d) above it, and is provided with labyrinth (80a) above it, There are multiple detours in the labyrinth, connecting the long hole and the central hole, so that the pull wire is put into the pull turret (80) and enters the central hole; the section of the nylon wire (134) has at least one notch (34a) ; The notch is helical along the nylon wire, and it is evenly distributed along the circumference; and the notch is triangular; RC, switch K, inductance L3, inductance L4, capacitor C, and series excitation motor M provided with winding L1 and winding L2, and start button AQ and handle (75), and diode Di, resistance R1, R2, light-emitting tube LED , composed of a wire winder and a plug socket; the head of the handle 75 is provided with a hook; the start button AQ is provided with a long sheet QA2, and is connected to the pressing block QA1 through the long sheet, and is also provided with a limiting sheet QA3; when the start button AQ is pressed and the handle (75) is pulled, the hook provided on the head of the handle (75) presses the briquetting block QA1 of the start button AQ, and the pressure of the start button AQ The block QA1 presses the switch K to start; when it is to be closed, as long as the handle (75) is pulled, each part can be elastically reset separately; On the movable bracket (90) of the assembly, the movable bracket (90) consists of a fixed sliding seat (90c) installed on the bracket seat of the lawnmower chassis, and a slide bar (90a) and a limit (90a) that can be pulled out are provided. 90b), the sliding rod (90a) of the living bracket (90) is sleeved in the fixed sliding seat (90c) of the bracket seat, and is positioned by the limit position (90b) when pulled out. The bracket (90) is covered with rubber skin, and the limit (90b) is provided with a limit switch, so that when the front collides with the living bracket The outsourcing rubber skin of (90) triggers the limit switch that described limit (90b) is provided with when the slide bar (90a) of described live support (90) is retracted, to form anti-collision safety device and insurance ; The blower (229) is a low-vibration leaf blower for lawnmowers, including an active auxiliary handle, a dust bag support and a tie-in, a dust outlet on the body shell and a soft sheet, and a blower blade. Add safety and double switches to the circuit, add noise-absorbing and vibration-damping materials and honeycomb inside and outside the blower, change the rollers to steerable, and change the single-extruded tube to multiple-extruded tubes or flexible folded tubes; the improvements described The low-vibration leaf blower consists of self-tapping screws (c1), body casing (c2), power cord (c3), cable sheath (c4), switch trigger (c5), switch trigger spring (c6), terminals Table (c7), cable clamp (c8), capacitor (c9), self-tapping screw (c10), main switch (c11), governor (c12), rubber gasket (c13), motor (c14), fan blade Gasket (c15), blowing impeller (c16), hex nut (c17), fan blade plug (c18), self-tapping screw (c19), rotating shaft cover (c20), spring (c21), retaining ring (c22) , Blow-suction conversion plate (c23), body bottom shell (c24), safety switch (c25), rotating shaft (c26), blow-suction conversion knob (c27), side button (c28), torsion spring (c29), Torsion spring shaft (c30), telescopic tube (c31), shaft retaining ring (c32), wheel (c33), wheel axle (c34), dust bag support (c35), dust bag (36), hex head bolt ( c37), square auxiliary handle knob (c38), self-tapping screw (c39), auxiliary handle cover (c40), auxiliary handle bottom (c41), M6 nut (c42), strap (c43), and nylon cable tie (c44), the elastic bead automatic positioner (c45), or the multi-extending tube (c46), or the flexible folded tube (c47), and the blown out multi-extending tube (c48); the self-tapping screw ( c1) is a plurality, which fixes the body shell (c2) and the body bottom shell (c24); the body body shell (c2) and the body bottom shell (c24) are assembled from left to right It includes the handle part, the auxiliary handle part, the extension tube limiter part, the motor volute part, the blow-suction door change part, the dust outlet part, and several external parts; in the said body shell (c2 ) and the handle of the main body bottom case (c24), the power cord (c3), cable sheath (c4), switch trigger (c5), switch trigger spring (c6), terminal block (c7), cable Pressing plate (c8), capacitor (c9), self-tapping screw (c10), main switch (c11), governor (c12); motors on the body shell (c2) and the body bottom shell (c24) On the volute, the rubber gasket (c13), the motor (c14), the blade gasket (c15), the blowing impeller (c16), the hex nut (c17), Fan blade plug (c18); on the blowing and sucking door changing parts of the main body shell (c2) and the body bottom shell (c24), self-tapping screws (c19) are sequentially installed, and the shaft cover (c20) is rotated, Spring (c21), retaining ring (c22), blow-suction conversion plate (c23), body bottom shell (c24), safety switch (c25), rotating shaft (c26), blow-suction conversion knob (c27); The extension tube limiter parts of the above-mentioned upper body shell (c2) and the lower body shell (c24) are equipped with side buttons (c28), torsion springs (c29), torsion spring shafts (c30) and telescopic tubes ( c31); the telescopic tube (c31) or cylinder, or square tube, and interconnected at the front, and the lower front part is provided with a wheel position; the front lower part of the telescopic tube (c31) is provided with The position of the wheel is equipped with a retaining ring (c32) for the shaft, a wheel (c33), and an axle (c34) successively; at the dust outlet positions of the body shell (c2) and the bottom shell (c24) of the body, set There is a flexible sheet (c2a); said flexible sheet is at least one piece, which is triangular, oblique or trapezoidal; or, said flexible sheet is not directly injection-molded on the shell, but is a flexible material, made of fiber fabric; There are two card slots on the outside of the dust outlet of the body shell (c2) and the body bottom shell (c24), so as to hang the dust bag bracket (c35) and the dust bag (36); The dust bag support is provided with a hook (c35a), a hook rib (c35b), a hook side clearance (c35c), a large bagging ring (c35d) and a small bagging ring (c35e); the hook rib (c35b) has 3 or more; the dust bag (36) is made of fiber fabric and is provided with a pipeline that can communicate with the lawn mower grass box; Put the cable tie (c44) of the dust bag (36) wrapped with sutures between the large bagging ring (c35d) and the small bagging ring (c35e) of the dust bag holder (c35) , and fasten the nylon cable ties (c44) with barb buckles; on the auxiliary handle parts of the main body shell (c2) and the main body bottom shell (c24), hexagonal head bolts (c37) are installed in turn, square Type auxiliary handle knob (c38), self-tapping screw (c39), auxiliary handle cover (c40), auxiliary handle bottom (c41), M6 nut (c42), forming a movable auxiliary handle; the auxiliary handle of the auxiliary On the handle cover (c40), there is an arc-shaped connecting handle (c40a), and a plurality of radial corrugations (c40b) at the end; the safety circuit with safety protection is provided by the terminal block ( c7), insurance RC, double-pole switch K, inductance L, capacitor C, and series excitation motor M provided with windings, and governor (c12); described governor (c12) is composed of two-way controllable Silicon (TC) and bidirectional thyristor (DC), resistor (R1), resistor (R2), variable resistor (R3), capacitor (C2) and speed control switch (K3); There are shock-absorbing and sound-absorbing materials, and multiple Vibration and sound-absorbing honeycomb structure, masks, gloves, protective glasses and insurance are added to the accessories of the improved blowing machine; the blowing impeller of the blowing machine is equipped with cutting edges, including the top cutting edge (c16a) and the side peripheral cutting edge ( c16b); the blowing impeller (c16) needs to be post-processed and then the dynamic balance is measured by the tooling with laser aiming; the axle frame under the head of the telescopic tube (c31) is disassembled to make it an independent part axle frame (c31a), set a hole at the place where the wheel shaft frame is placed under the head of the telescopic tube (c31), to insert the vertical shaft of the ring card groove on the wheel shaft frame (c31a), and pass the wheel shaft (c34) in the wheel shaft frame (c31a) , then install a pair of wheels (c33), and each install a retaining ring (c32) for the shaft; change the single extension tube into multiple extension tubes (c46), and set an automatic positioner, such as an automatic positioner for elastic bumper beads ( c45), or the automatic locator of the bump block, or the automatic locator of the torsion spring, which can be automatically positioned when it is stretched and retracted at will; the multi-extrusion pipe (c46) that is matched with the automatic locator is more than 4 sections; The extension pipes (46) are all provided with grooves to adapt to the locators; with the principle of the pull-rod antenna that can be freely pulled in and out, it is improved and used in the blower as a multi-extension pipe (c46), and the small The straw is called a multi-extrusion tube (c48); the feature of the multi-extension tube (c46, c48) is that one end is turned inward, and the other end is turned outward; , at least 4 sections, can be pulled out or returned freely, because there are convex and concave positions on the flange; or use the accordion principle that can be pulled in and out freely, and the commonly used stackable hoses of vacuum cleaners and washing machines to put It is improved and uses a blower to make a multi-extrusion tube, which is called a flexible folded tube (c47); for convenient positioning, it may be used together with a multi-extended tube (c48); the flexible folded tube (c47) has multiple folds , no matter its cross-section is square or round or other shapes, the adjacent circumference of the tube is arranged alternately in a large circle and a small circle, that is, one thick joint followed by one fine joint, and the number of joints is Sections, at least 4 sections or more; or, the tube of the flexible folded tube (c47) is made of flexible materials such as fabric, cloth, plastic film, and a plurality of rings are arranged at intervals along the flexible tube, or along the flexible tube Inside or outside, the coil spring is set as a spacer ring for support and pulling in and out; the coil spring is sparse and flexible; in order to improve the manufacturing and assembly accuracy, the method including laser is used to improve the motor and blowing impeller at the same time There are both precision molded parts and laser aiming tooling methods for measuring axiality and dynamic balance; because the vibration and noise of the blower and suction machine are largely rooted in the precision and shape tolerance of the power and tools, it is necessary to improve the motor and The concentricity of the blowing impeller, and the dynamic balance must be measured, in order to have a certain effect on the long-standing problem of low vibration and low noise of the blowing and suction machine; For the coaxiality and geometric tolerance requirements of the motor and blowing impeller assembly, increase the interference of the motor and blowing impeller, and then use the force tooling fixture to press together; moreover, use the CNC machining center to prepare precision molds, and Plastic blowing impeller for post-processing, the main method is to use high-temperature steam method, Steam for more than three hours, so that the size of the plastic parts is not easy to deform and lose shape; secondly, in order to improve the coaxiality of the motor and the blowing impeller, when assembling, use a special tool for calibrating the coaxiality of the motor and blowing impeller assembly with laser alignment After the press is pressed, it can be put on the production line after batch sampling and dynamic balance correction. Finally, the whole machine should also be sampled and tested for dynamic balance, in order to supplement it with multiple shock-absorbing and noise-absorbing materials, and comprehensively form an improved low-vibration leaf blower; the angle between the top surface of the blowing impeller blade of the top cutting edge (c16a) of the blowing impeller and the front of the blowing impeller blade is an acute angle of not more than 45 degrees; and the blowing impeller The sliding cut angle between the side peripheral surface of the blowing impeller blade and the front surface of the blowing impeller blade of the side peripheral cutting edge (c16b) is also an acute angle not greater than 60 degrees; The edge of the edge is locally short, or along most of the edge is longer; its cutting edge is a straight edge or an arc edge, or a multi-fold edge; and its arc edge is a segment of a logarithmic spiral that is equal at all pressure angles , or use the Archimedes line, or use a parabola; the blowing impeller is also equipped with a blade steel knife, with a bar knife; the blowing impeller blade is provided with a plurality of oval and hexagonal Noise-reducing holes; the vibration-reducing and sound-absorbing honeycomb structure provided in many places of the blower and suction machine is in the form of many densely interconnected hexagons and contains sound-absorbing wedge structures. The vibration parameters of the suction machine are related to the noise characteristics, and multiple tests are required; the above-mentioned shock-absorbing and sound-absorbing materials added to multiple places of the suction machine are filled or half-filled with metal fibers or non-metallic materials; Or use medium-temperature-resistant sound-absorbing materials, which are porous sound-absorbing materials, or flexible materials, and membrane materials; the porous materials can be fibers, foams, particles, or mixed applications; or use fibers such as rock wool , or glass wool, use ultra-fine glass wool; or use foam, which needs to be fireproof at places where the temperature rises, such as motors; or particles, use expanded perlite, or porous clay bricks; or heat-resistant fabrics and felts. Filling, or attaching; the honeycomb structure is prefabricated and attached, or mixed molding; the hose reel is a hose winding device with a ball position lock and a multi-damping mechanism, and the wire reel uses the middle fixed large The gear (4) can be equipped with more pinions (9) around it to rotate, and the above-mentioned tube winding device with a ball position lock and a multi-damping mechanism is added; the ball position lock is controlled by the pinion (9) , composed of lock core shaft (74), ball (70), torsion spring (73), lock core (72) and position lock box shell (71) driven by pinion (9); described position lock box shell (71) is assembled on the main wheel (14), and described torsion spring (73) is enclosed within on the lock core axle (74), and normal state is to wrap on the tight sleeve; Described lock core (72) loose fits on The torsion spring (73) and the lock core shaft (74) are packed into the position lock case (71); the lock core (72) is provided with an eccentric heart-shaped lock groove, which is eccentric so that the groove The inner ball moves forward, and the bottom of the heart-shaped recess is the position of the lock when the ball enters; the ball (70) is a smooth steel ball; the torsion spring (73) is a tight ring, and the section is rounded for easy machining with its more curved L-shaped ends (73a ) and U-shaped ends (73b), which are not easy to wear the mandrel due to the twisted edges of the square when working; Above the lock core (72); and the other end (73b) is U-shaped with two sides, so it is beneficial to the promotion of the ball (70); and the torsion spring (73) The end (73a) is stuck on the lock core (72), and the end (73b) of the torsion spring (73) stretches out to the heart-shaped lock groove of the lock core (72) near the apex of the heart. In the square hole, and in contact with the ball (70); the ball (70) is movably installed in the axial slot (71a) of the position lock box shell (71) and the heart-shaped lock cylinder (72). In the lock groove, and contact with the end (73b) of the torsion spring (73) which is sleeved on the lock cylinder shaft (74) and extends to the lock cylinder (72), so as to be in contact with the heart-shaped lock groove of the lock cylinder (72) Linked to move up and down with the axial slot (71a) of the position lock case (71), the goal is to push the end of the torsion spring (73) when the ball (70) ( 73b) is in place to make the inner diameter of the torsion spring seal larger, so as to loosen the lock core shaft (74) driven by the pinion (9) and make the pipeline free; and when the ball (70) falls to the lock position , do not push the end (73b) of the torsion spring (73), and make the inner diameter of the torsion spring seal smaller, so as to tightly wrap the lock core shaft (74) driven by the pinion (9), so that the pipeline Thereby forming a hose reel with a ball position lock and a multi-damping mechanism; when pulling the pipeline, because the main wheel (14) is equipped with a joint (15), the pipeline has been installed on the joint and the pipeline is wound on the joint. On the above-mentioned main wheel, the main wheel (14) and the lower plate (16) are fixed and connected as a whole by screws, and the central large tube shaft of the lower plate (16) is rotated and inserted into the central large tube of the lower shell (17). On the smooth outer axis of the pipe, the upper plate (12), the main wheel (14), the pipe joint (15), and the lower plate (16) rotate relative to the shell; when the pipeline is pulled out, the main wheel (14) ) drives the pinion (9); when the pull is stopped, the ball (70) will be provided with an eccentric heart-shaped lock groove along the lock cylinder (72) due to the reaction of the clockwork (eccentric so that the ball in the groove can move smoothly) move to), and touch the bottom of the heart-shaped recess, when the ball enters the position of the lock, it is locked; then pull the point and release the pipeline, no lock, the reaction force of the hose or cable on the mainspring (11) down, automatic rewinding; the lawnmower with chassis blade broom blowing and suction, watering, fertilization and drug spraying and holding brake is characterized in that it is provided with a logarithmic spiral brake and is provided with a blowing machine and a device There is a hose reel that can be used for watering, fertilizing and spraying liquid pipelines; the brake includes an inner frame (76), and a motor (77) is installed on the inner frame. On the shaft of the motor (77), a motor pulley (84) is provided, and through the belt (83), the belt pulley (204) whose center line is at the center of the cutting disc of the chassis is driven; (203), the output shaft (203) is connected to a working tool such as a grass cutter; One end of the brake extension spring (210) is fixed on the pulley (204) with a machine screw (216), and the other end of the brake extension spring (210) is connected with the brake lever (208a) used for braking. ) return pull hole (225); the brake lever (208a) is provided with a rotation hole (226) and is connected in the pulley (204) by a rivet and can rotate flexibly; the brake lever (208a) Friction plates (209) are provided on the top; a fixed brake ring (201a) is installed on the inner frame; a coaxial protrusion dial (227) is set on the outside of the output shaft (203); The edge of the bump dial (227) is provided with a bump dial (224b); the edge of the bump dial (227) is also provided with a reset seat (228), so that the reset clip spring (228a) is installed and reset; the protrusion block (224b) is equipped with a protrusion assembly (224a); (224c), a hollowed-out arc groove surrounded by another groove edge (224); the upper circular arc (224d) is a semicircular arc, and the distance from its center to the axis center of the output shaft (203) Farther than the distance from the center of the lower circular arc (224c) which is also a semi-circular arc to the axial center of the output shaft (203), so that the groove edge (224) of the arc-shaped groove does not follow along the output shaft The concentric circumference of the shaft center, but eccentric, this just forms a cam in essence; The lug assembly (224a) on the said lug dial (227) is inserted into the arc groove and along the groove edge ( 224) slides, which forms a substantial cam structure; when the series excitation motor stops, although there is an electromagnetic emergency stop in the series excitation motor, the inertia of the mower is too great to make an emergency stop. In order to make the mower emergency stop to meet the safety regulations, brakes are needed; when the series excitation motor stops, the pulley (204) driven by the motor stops, and the brake lever (208a) loses the inertial centrifugal force thrown away, so The turning hole (226) is rotated by the rivet, and the return pull hole (225) of the brake lever (208a) connected to the brake tension spring (210) is turned back to the position, so that the brake The friction plate (209) that is provided with on the moving bar (208a) locks the fixed brake ring (201a) that is installed on the described inner frame of brake; The brake lever (208a) is provided with a hollowed-out arc groove surrounded by an upper arc (224d), a groove edge (224), a lower arc (224c), and another groove edge (224) in turn. ; and because the upper arc (224d) is a semicircle, and the distance from its center to the center of the output shaft (203) is farther than the center of the arc (224c) that is also a semicircle The distance of the shaft center of the output shaft (203) makes the groove edge (224) of the arc groove not follow the concentric circle along the shaft center of the output shaft, but eccentric, which forms a substantial cam; The arc-shaped groove and the protrusion dial ( 227) the protrusion assembly (224a) on the cam structure is pushed from the upper circular arc (224d) to the lower circular arc (224c), because the output shaft (203) is sheathed with Coaxial protrusion dial (227), so that the working tool that described output shaft (203) is connected is stopped like lawn mower; (204) rotates, and then described brake lever (208a) is subjected to the inertial centrifugal force that throws outwards, with described rotation hole (226) and by rivet as fulcrum and turns away, just makes described brake lever (208a) The friction plate (209) provided on the top leaves the fixed brake ring (201a) installed on the inner frame, and at the same time, because the edge of the protrusion dial (227) is also provided with a reset seat (228 ), it is convenient to install the reset stage clip (228a) to reset; the lawn mower with the blowing and suction of the chassis blade broom, watering, fertilization, drug spraying and holding brake is also characterized in that it is provided with watering and A hose reel through a liquid pipeline for fertilization and spraying and a blower (229) installed on a lawn mower; the pipe of the hose reel is filled with water for irrigation or liquid for fertilization Fertilizer and or liquid pesticide that is used for sprinkling is housed; The described air blower (229) that is located on the mower, the dust bag support (35) of its air blower (229) is connected with dust bag (36 ), and the dust bag (36) has a pipeline to connect with the grass box at the rear of the lawnmower; on the mower of the lawnmower chassis, the blowing and suction blades (231) and brooms (232) are established. Sweep directly.

The lawnmower for blowing and suctioning, watering, fertilizing, spraying and holding brakes that is continuously improved and perfected is characterized in that: the fixed brake ring (201a) installed on the inner frame is made of metal and the fixed brake ring (201a) installed on the inner frame is metal, and the brake ring (201a) has a plurality of protruding flanges to facilitate stuck.

The lawn mower for blowing and sucking, watering, fertilizing, spraying and holding brakes that is continuously improved and perfected is characterized in that: the brake lever (208a) is provided with the friction plate (209) An arc is a segment of a logarithmic spiral.

The lawnmower for blowing and sucking, watering, fertilizing, spraying and holding brakes that is continuously improved and perfected is characterized in that: the protrusion dial (227) is provided with a protrusion on the edge of the dial (227). The seat (224b) is provided with a through hole and a square pit for installing the protrusion assembly (224a); and the protrusion assembly (224a) installed on the protrusion dial (227) contains bolts and Nuts and sleeves.

The lawnmower for blowing and suctioning, watering, fertilizing, spraying and holding brakes that is continuously improved and perfected is characterized in that: the protrusion assembly installed on the protrusion dial (227) (224a) with bolts and nuts and sleeves and bearings.

The lawn mower for blowing and sucking, watering, fertilizing, spraying and holding brakes that is continuously improved and perfected is characterized in that: the reset seat (228) provided by the protrusion dial (227) It is a protruding cross shape to securely install the return stage clip (228a).

The lawnmower for blowing and sucking, watering, fertilizing, spraying and holding brakes that is continuously improved and perfected is characterized in that: the brake lever (208a) is provided with positive and negative positions that are successively connected to each other. A hollowed arc groove surrounded by intersecting and tangent or smooth upper arc (224d), groove edge (224), lower arc (224c), and another groove edge (224).

The lawn mower for blowing and suctioning, watering, fertilizing, spraying and holding brakes, which is continuously improved and perfected, is characterized in that: the hollowed-out arc on the brake lever (208a) The arc of the groove edge (224) of the groove is a segment of a logarithmic spiral.

The lawnmower for blowing and sucking, watering, fertilizing, spraying and holding brakes that is continuously improved and perfected is characterized in that: the liquid fertilizer used for fertilization is housed in the tube of the described hose reel. The water is added with dissolvable fertilizer by percentage; or the liquid pesticide used for sprinkling in the pipe of the hose reel is that the water is added with dissolvable pesticide by percentage.

The continuously improved lawn mower with chassis blade broom blowing and suction, watering, fertilization, drug spraying and holding brake is characterized in that: the blowing and suction port of the blowing and suction machine (229) on the lawn mower is characterized in that: (230) is a trumpet; and the middle part of the blower (229) is provided with a movable ball as a fulcrum on the mower, and the strap (43) of the blower (229) is drawn to the operation of the mower Next to the handle, the direction of the suction port (230) of the blower (229) is fine-tuned in order to pull the strap (43).

The invention relates to a lawn mower used for mowing lawns in gardens, parks, roads and other places. The anti-collision safety device at the front of the grass machine chassis and the logarithmic helical brake with anti-collision safety and self-stopping, and the low-vibration leaf blower and the installation of dust bag holder, binding mouth and body Add a soft piece to the dust outlet of the shell, add a blade to the blowing impeller, add insurance and double switches to the circuit, and add sound-absorbing and vibration-reducing materials and honeycombs inside and outside the blowing and suction machine, change the roller to steerable, and change the single-extruded cylinder to On the basis of multi-functional lawn mowers with multi-extrusion tubes or flexible folding tubes, integrated blowing and suction and mowing heads, and hose reels with liquid pipelines for watering, fertilizing and spraying, an improved automatic lawn mower is provided. The charging pin is inserted into and pulled out of the smart lawn mower of the contact piece assembly, so that it can be plugged and unplugged reliably; just like a car needs a gas station, an electric lawn mower also needs a charging station, and the market needs an automatic charging pin. A smart lawn mower with a charging component of the contact piece, so that it can be reliably and automatically plugged in and charged; so an improved smart lawn mower with automatic charging pin insertion and extraction of the contact piece assembly has emerged at the historic moment, solving the battery problem. The problem of being not durable and requiring frequent manual charging; an improved intelligent lawn mower with automatic charging pin insertion and extraction of the contact piece assembly is characterized in that it contains an improved automatic charging pin insertion and extraction of the contact piece assembly; said The assembly with automatic charging pin insertion and pull-out contact pieces, which includes a fixed power supply part with automatic charging pin insertion parts, and a movable power receiving part with pull-out contact pieces of the lawn mower body; The fixed power supply part of the automatic charging pin insertion part is provided with a bottom plate laid horizontally on the ground, a front wall standing in front, a power supply, and anchor screws. There are guide rails (233c) symmetrical along the central axis so as to guide the left and right sides of the fuselage at the front of the mower symmetrically along the central axis; The curve section of each guide rail (233c) that is provided with on the right side symmetrically along the central axis is a cubic curve, so as to reduce impact; , so as to fix; the front part of the bottom plate laid horizontally on the ground is provided with the front wall standing in front; the front wall standing in front is provided with left and right sides symmetrical along the central axis. One, the charging pin ((233), the root of the charging pin ((233) is provided with a pin ball (233a), so as to follow up in a small amount, the root of the charging pin ((233) is provided with a screw thread , so as to be connected with the power supply; the head of the charging pin ((233) is provided with an insertion surface (233b), so that the charging pin can be inserted into and pulled out of the contact piece; the bottom plate laid horizontally on the ground is along the central axis Laying and drawing out and laying the guide wire of the electromagnetic pulse along the ground surface in the working area, so that the sensor (234d) under the front of the lawn mower can be intelligently guided by the circuit board to walk to the automatic charging pin when the lawn mower is to be charged. Insert part of the fixed The power supply part is provided with a base plate laid horizontally on the ground surface; the movable power receiving part containing the pull-out contact piece is arranged at the front of the lawn mower, and the movable power receiving part containing the pull-out contact piece includes The sensor (234d) under the front part of the lawn mower and the contact piece (234) and the pressure piece torsion spring (234a) and the rotating shaft that are located at the front part of the lawn mower; the contact piece (234) and the pressure piece torsion spring Spring (234a) and rotating shaft respectively have four, and each described contact piece (234) and pressing piece torsion spring (234a) and rotating shaft form a dodge door, and described each described contacting piece (234) and pressing piece A movable door formed by a torsion spring (234a) and a rotating shaft and another movable door formed by each of the contact piece (234) and a pressure piece torsion spring (234a) and a rotating shaft form a double door facing each other. The contact surfaces ((234b)) of each of the contact pieces (234) facing the dodge doors of the double doors on the side and the right side correspond to the edges along the front wall standing in the front. The insertion surface (233b) provided on the head of the charging pin ((233)) on the left and right sides symmetrical to the central axis is inserted slightly by the charging pin by the pin ball (233a) ; When it is charged to the set value, it will start the lawn mower back, so that the charging pin is pulled out of the contact piece, and then work; when charging again, the lawn mower walks to the fixed power supply part of the automatic charging pin insertion part Lay horizontally on the ground floor and be inserted by the charging pin.

The improved intelligent lawn mower with automatic charging pin insertion and extraction of the contact piece assembly, which is continuously improved and perfected, is characterized in that the left and right sides of the bottom plate laid horizontally on the ground are respectively provided with symmetrical mowers along the central axis. The curved sections of the guide rails (233c) are bell-shaped mutually so as to cooperate with the auxiliary guide rods (234e) on the front side of the mower.

The improved intelligent lawn mower with automatic charging pin insertion and extraction of the contact piece assembly, which is continuously improved and perfected, is characterized in that the left and right sides of the bottom plate laid horizontally on the ground are respectively provided with symmetrical mowers along the central axis. The curve section of each guide rail of the guide rail (233c) is a cubic curve, so as to match with the auxiliary guide bar (234e) on the front side of the mower and reduce the impact.

The improved intelligent lawn mower with automatic charging pin insertion and extraction of the contact piece assembly, which is continuously improved and perfected, is characterized in that the four feet of the bottom plate laid horizontally on the ground are provided with the anchor screws that expand screw.

Continuously improved and perfected smart lawnmower with automatic charging pin insertion and extraction of contact piece assembly, characterized in that the pin ball (233a) provided at the root of the charging pin ((233) is in A cross pin is provided on the spherical seat for micro-following.

The improved intelligent lawn mower with automatic charging pin insertion and extraction of the contact piece assembly, which is continuously improved and perfected, is characterized in that the root of the charging pin ((233) is provided with two nuts on the screw thread, so as to Anti-loosening.

The improved intelligent lawn mower with automatic charging pin insertion and extraction of the contact piece assembly, which is continuously improved and perfected, is characterized in that the orientation platform (233a) provided at the root of the charging pin ((233) is loaded into Thick rubber pads for micro-movement and impact resistance.

The improved smart lawn mower with automatic charging pin insertion and extraction of the contact piece assembly, which is continuously improved and perfected, is characterized in that the insertion surface (233b) provided on the head of the charging pin ((233) is wedge shaped.

The improved intelligent lawn mower with automatic charging pin insertion and extraction of the contact piece assembly, which is continuously improved and perfected, is characterized in that there are two dense-coil torsion springs of the pressure piece torsion spring (234a).

The improved intelligent lawn mower with automatic charging pin insertion and extraction of the contact piece assembly, which is continuously improved and perfected, is characterized in that a section of the curve of the contact surface ((234b) of the contact piece (234) is a logarithmic spiral Because the logarithmic spiral, that is, the equiangular spiral, has the characteristic that the pressure angle is equal everywhere, it is beneficial to contact insertion.

On the basis of the intelligent lawnmower with automatic charging pin insertion and extraction of the contact piece assembly continuously improved and improved, further develop an intelligent garden working machine with a wireless communication remote control blower for long-term operation in the garden.

An intelligent garden working machine that uses a wireless communication remote control blower to work in the garden for a long time, which includes an improved contact piece assembly with automatic charging pin insertion and extraction; the described contact piece assembly with automatic charging pin insertion and extraction, its It includes a fixed power supply part with an automatic charging pin insertion part, and a movable power receiving part with a pull-out contact piece of the lawn mower body; the fixed power supply part with an automatic charging pin insertion part is provided with a horizontal The base plate laid on the ground surface, the front wall standing in front, the power supply, and the anchor screws, the single side of the base plate laid horizontally on the ground surface is provided with a guide rail symmetrical along the forward line of the front universal wheel on one side ( 233c), in order to guide the front of the lawnmower to the left and right along the forward line of the unilateral front universal wheel; The curve section of each guide rail of the axis-symmetrical guide rail (233c) is a cubic curve, so as to cushion the shock; the four feet of the base plate laid horizontally on the ground surface are provided with the anchor screws for fixing; The front part of the base plate on the ground surface is provided with the front wall standing in front; the front wall standing in front is provided with the charging pins on the left and right sides symmetrical along the central axis ( (233), the root of the charging pin ((233) is provided with a pin ball (233a), so as to follow up in a small amount, and the root of the charging pin ((233) is provided with a screw thread, so as to be connected with the power supply ; The head of the charging pin ((233) is provided with an insertion surface (233b), so that the charging pin can be inserted into and pulled out of the contact piece; The guide wire of the electromagnetic pulse is laid on the ground, so that the sensor (234d) under the front of the lawnmower and the circuit board intelligently guide the lawnmower to walk to the fixed power supply part of the automatic charging pin insertion part when it is to be charged. There is a bottom plate laid horizontally on the ground surface; the movable power-receiving part containing the pull-out contact piece is arranged at the front of the mower, and the movable power-receiving part containing the pull-out contact piece includes the described The sensor (234d) below the front part of the lawn mower and the contact piece (234) and the pressure piece torsion spring (234a) and the rotating shaft located at the front part of the lawnmower; the contact piece (234) and the pressure piece torsion spring (234a) ) and rotating shaft respectively have four, and each described contact piece (234) and pressure piece torsion spring (234a) and rotating shaft form a dodge door, and described each described contact piece (234) and pressure piece torsion spring ( 234a) and a dodge door formed by the rotating shaft and another dodge door formed by each of the contact piece (234) and the pressing plate torsion spring (234a) and the rotating shaft form a double door facing each other, left and right The contact surfaces ((234b)) of each of the contact pieces (234) facing each other of the dodge doors of the double doors are corresponding to the symmetrical ones along the central axis that are provided on the front wall standing in the front. The said insertion surface (233b) provided on the head of said charging pin ((233)) on the left side and the right side respectively is inserted by the charging pin by the pin ball (233a) micro amount; when charging When the set value is reached, the lawn mower will be started to retreat, so that the charging pin will be pulled out of the contact piece, and then it will work; The bottom plate on the ground surface is inserted by the charging pin; the curve segment of each guide rail (233c) symmetrical along the central axis provided on the left and right sides of the bottom plate horizontally laid on the ground surface is a cubic curve, In order to match with the auxiliary guide bar (234e) on the front side of the lawnmower and reduce the impact; the four feet of the bottom plate laid horizontally on the ground are provided with expansion screws; the charging pin (233 The pin ball (233a) provided at the root of ) is provided with a cross pin on the spherical seat, so as to follow up in a small amount; two nuts are installed on the screw thread provided at the root of the charging pin (233), so as to Anti-loosening; the insertion surface (233b) provided on the head of the charging pin (233) is wedge-shaped; there are two dense-circle torsion springs of the pressure piece torsion spring (234a); the described A section of the curve of the contact surface ((234b) of the contact piece (234) is a logarithmic spiral, because the logarithmic spiral, that is, the equiangular spiral, has the characteristics that the pressure angle is equal everywhere, which is beneficial to contact insertion; The intelligent garden working machine for system formation charging control, the pin ball (233a) provided at the root of the charging pin ((233)) is installed on the concave hemispherical seat and the left and right sides of the pin ball Each coaxial pin is located in the left and right U-shaped slots for micro-movement and impact resistance; the random time delay is used as a system simulation formation charging control intelligent lawn mower. A narrow guide rail (233c) symmetrical along the forward line of the front universal wheel on one side is provided on one side of the bottom plate laid horizontally on the ground surface provided by the fixed power supply part with the automatic charging pin insertion part, The middle groove of the narrow guide rail (233c) can only accommodate the front universal wheel of the unilateral front wheel of the lawn mower, and the left and right width of the narrow guide rail (233c) is less than half of the width of the lawn mower , each guide rail of described narrow guide rail (233c) is the bell mouth shape that contains the cubic curve section of the function curve of advanced mathematics, so that dampen impact and make front universal wheel cooperate with half guide groove and to the lawn mower The front of the fuselage is guided along the left and right of the forward line of the unilateral front universal wheel and the mowing area is enlarged, avoiding the left half of the original wide two guide rails being the missing cutting area or the left half It is the wounded knife area or the left half is the wounded guide rail area; an intelligent garden machine with collaborative visual information perception of multiple sequential formation charging methods, characterized in that the bottom plate of the fixed power supply component with automatic charging pin insertion components It is connected to the photovoltaic power generation charging pile and the guide wire encirclement circle with electromagnetic pulse laid on the surface along the mowing border, and placed in the guide wire encirclement circle with electromagnetic pulse laid on the ground along the border of the mowing work area. There are multiple lawn mowers, and each lawn mower is provided with a compass compass so as to maintain order in the vertical and horizontal directions during operation; the fixed power supply part with automatic charging pin insertion part and Between the lawn mowers, the communication remote control with cooperative visual information perception of multiple sequential formation charging is adopted. The intelligent garden working machine is equipped with a detection head that senses the electromagnetic field of the wire and multiple cameras, lasers and ultrasonic range finders. The Beidou positioning is used to remotely control the order of each garden working machine to charge; the working machine includes an intelligent charging management circuit, and adopts different charging strategies according to the actual power status of the battery pack to ensure the system works;

Different charging strategies are adopted according to the actual power status of the battery pack; when the voltage of a single cell of the battery is low

For 2.7V/CELL, due to the large operating current of the system, the remaining power of the battery cell is not enough to maintain the normal operation of the system. At this time, the voltage of the charging base station is directly used to supply power to the system and charge the battery. The specific working principle is as follows: When the machine is connected to The system detects the battery voltage at the time of the charging station. If the voltage is lower than 2.7V/CELL, at this time, the BD_EN and BT_ctr control signals sent by the MCU are both at low level, the TF14 MOS is turned on, and the charging base station supplies power to the system. At the same time, the TF10 MOS cut-off prevents the battery from supplying power to the system and avoids excessive discharge of the battery. Each part of the circuit works as follows: Battery voltage detection circuit: When the system is working, the AD input pin of the MCU detects the divided voltage of the resistors R142, R146, and R147, which are calculated by sampling The voltage value of the battery is compared with the charging threshold set by the software to control the charging method;

The voltage sampled by the MCU chip MCU:

V＝(R146//R147)*(R142+R146//R147)*Vbattery

Among them, the function of TF15 MOS field effect tube is as follows:

When the system is in the normal power supply state, the G pole of the MOS supplies power to the G pole through the 12V voltage, and the G pole voltage is:

VG-S＝R127/(R126+R127)*12V

This voltage ensures that the TF15 tube is reliably turned on, and the battery voltage sampling circuit works. When the system is powered off, the TF15 will be cut off because the G and S terminal voltages are zero, and the battery voltage sampling circuit will be disconnected, preventing the battery from discharging through this circuit and reducing the power of the machine. Power consumption when not in use,

When the machine is connected to the charging base station when the system is powered off, because the BT_ctr signal of the MCU is at a low level, the transistor Q28 is cut off, and the voltage of the B-E terminal of the transistor Q27 is:

VB-E=VCIN+*R212/(R210+R212),

This voltage value is greater than the turn-on threshold voltage of the triode, and the transistor Q27 is turned on. At this time, the G-S terminal voltage of the TF14 MOS tube is:

VG-S＝VCIN*(1-R211/(R209+R211))

TF14 is therefore turned on, the base station voltage VCIN+ supplies power to the system through TF14, the system automatically starts up, and checks whether it meets the charging conditions; during charging, when the MCU detects that the charging voltage is greater than 2.7V/CELL, the control signals BT_ctr and BD_EN are switched from low to low. The level is switched to high level, and the charging state is switched as described below:

When the BT_ctr signal is switched from low level to high level, the transistor Q28 is switched from the cut-off state to the conduction state, causing the base voltage of the transistor Q27 to drop to zero voltage and cut off, and TF14 is cut off accordingly.

The power supply channel of the base station to the system is disconnected,

When the BT_ctr signal is switched from low level to high level, the BD_EN signal is also switched from low level to high level, the transistor Q16 is switched from the off state to the on state, and the voltage drop across the resistor R138 is greater than the G-S conduction of TF10 When the voltage is turned on, the TF10 MOS is turned on. At this time, while the power supply channel of the base station is disconnected, the battery supplies power to the system.

The function of the D23A diode: In other working states of the system, except charging, in order to prevent the battery voltage from being added to the CIN+ signal terminal through the body diode of TF14, so that the system judges that it is in the charging state and misoperates, add a blocking diode;

The function of the D23 diode: in the charging state, prevent the charging voltage from charging the battery through the body diode of TF10;

This system adopts an intelligent charging management system, multiple charging data detection and data measurement during charging, and provides multiple protection functions to ensure charging safety;

The chip MCU determines the size of the charging by detecting the battery voltage, and decides when to terminate the charging according to the set charging cut-off voltage and current value, so as to ensure the safety of charging and improve the service life of the battery.

The MCU controls the magnitude of the charging current by controlling the level status of the ChrgEn1 and ChrgEN2 signals.

When the MCU detects that the battery voltage is lower than 2.7V/CELL, it uses a small current to charge the battery. At this time, the ChrgEn1 signal is at a low level, and at the same time, the ChrgEN2 signal is at a high level, and the transistor Q20 is turned on, and the transistor Q19 is then turned on. On, the base station voltage charges the battery through resistors R164, R164A, R164B, and Q19.

The functions of resistors R164, R164A, and R164B are as follows:

Acts as a current limiter, the charging current is:

IChrg＝(VCIN+-Vbattery)/(R164+R164A+R164B)

Avoid low battery voltage, lowering the voltage of the base station, causing the system to fail to work normally;

When the MCU detects that the battery voltage is higher than 2.7V/CELL, a large current is used to charge the battery. At this time, the ChrgEn1 signal is switched to a high level, and at the same time, the ChrgEN2 signal is switched to a low level, the transistor Q21 is turned on, and the MOS tube TF12 is then turned on, and the base station voltage charges the battery through the resistor TF12 MOS tube. The charging current is determined by the current of the base station charger.

R176 and R181 are current sampling resistors. When the voltage generated by the charging current flowing through this resistor is greater than the charging threshold voltage set by the MCU, the MCU considers the charging overcurrent and stops charging immediately;

Charging cut-off conditions:

When the total voltage of the battery is greater than 4.15V/CELL, or the charging current is less than 200mA, stop charging to avoid overcharging of the battery;

System power supply circuit:

The power supply design of this system adopts the combination of switching power supply and linear regulated power supply to provide the 12V, 5V and 3.3V voltage required by the system. The specific work is described as follows:

The battery voltage or base station power supply voltage is applied to the input pin 1 of the switching power conversion chip. When the switch control pin 5 is at low level, the MOS tube connected between pin 1 and pin 2 inside the control chip is in the switching state, and the MOS The conduction time of the tube in each switching cycle depends on the error value between the feedback voltage of the output voltage fed back to the pin 4 terminal and the built-in reference voltage,

In the on-state of the chip’s built-in MOS, the input voltage provides energy to the output +12V through the inductor L1, and the inductor L1 and capacitor C64 also store electrical energy during this period.

When the MOS is turned off, the electric energy stored in the inductor L1 in the last conduction cycle will be released to supply power to the load. The diode D21 provides a current loop to the inductor L1. When the energy on L1 decreases, C64 provides additional voltage to maintain The output voltage +12V remains unchanged.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a schematic diagram of a string motor electric lawn mower with a cord reel mounted on the front.

Fig. 2 is a schematic diagram of the circuit (without the battery part) of the series motor electric lawnmower with the reel.

Fig. 3 is a schematic diagram of a series-excited motor electric lawn mower with a cord reel installed in the middle.

Fig. 4 is the schematic diagram of the cutting device assembly with the pulling rotating rod and the mowing head arranged in the middle part of the lawnmower with the series excitation motor.

Fig. 5 is the cross-sectional view of the cutting device assembly with the pulling rotating rod and the mowing head arranged in the middle part of the lawn mower with the series excitation motor.

Fig. 6 is the schematic diagram of the labyrinth pulling turret (80) that connects pulling head and pulling rotating rod and thrust bearing.

Fig. 7 is the schematic diagram of the reel (25-3) of cutting head.

Figure 8 is a schematic illustration of the large pulley (82) of the cutter assembly located in the middle of the mower driven by an offset motor.

Fig. 9 is a schematic diagram of the pulling rotating rod (78) of the cutting device assembly with the mowing head arranged in the middle part of the mower.

Fig. 10 is a schematic diagram of the explosion of the mowing head.

Figure 11 is a schematic diagram of the battery bracket assembly.

Fig. 12 is a schematic diagram of an insulating knife holder (85) with a fan.

Fig. 13 is the schematic diagram of the anti-noise nylon thread (134) that has triangular profile.

Fig. 14 is an enlarged schematic view of a noise-proof nylon thread (134) having a triangular shape.

Fig. 15 is the assembly schematic diagram that button (QA) and switch handle (75) and the switch box (75b) with latch are arranged.

Fig. 16 is the schematic diagram of the button (QA) of the switch box (75b) that has button (QA) and switch handle (75) and bolt.

Fig. 17 is a schematic diagram of the exploded structure of the winder.

Fig. 18 is a perspective view of the damping turntable of the centrifugal slow retraction device.

Fig. 19 is a perspective view of the handle pin with the torsion spring of the centrifugal slow retraction device equipped with a damping turntable.

Fig. 20 is a schematic diagram of a partial assembly structure of the wire winder.

Fig. 21 is a top view schematic diagram when the inner and outer cam grooves with multiple control points are locked.

Fig. 22 is a schematic top view when the inner and outer cam grooves with multiple control points are pulled out.

Fig. 23 is a schematic diagram of a damping device with a toggle lever and a rack and pinion.

Fig. 24 is the schematic diagram of the side piston damping device that has 4 small slide blocks and extension spring and side piston.

Fig. 25 is a schematic diagram of gear meshing and side piston damping box housing installation.

Fig. 26 is a cross-sectional view of the helical friction one-way mechanism of the damper.

Fig. 27 is a cutaway perspective view of the spiral friction one-way mechanism of the cord reel and the damping device.

Fig. 28 is a perspective view of the rollers of the angle groove damping mechanism of the pipe racker.

Figure 29 is a perspective view of the angled slot guide rear bracket (51).

Fig. 30 is a vertical sectional view of the flap spring compression spring damping mechanism.

Fig. 31 is a perspective view of a pipe rack.

Figure 32 is a schematic cross-sectional view of a position lock with a ball.

Fig. 33 is a vertical sectional view of the anti-resistance mechanism.

Fig. 34 is an explosion schematic diagram of a brake with a function wave plate (206) of an electric lawnmower.

Fig. 35 is a sectional view of a brake with a function wave plate (206) of an electric lawnmower when braking.

Fig. 36 is a sectional view of the brake with the function wave plate (206) of the electric lawnmower when not braking.

Fig. 37 is a schematic diagram of a brake disc (204b) with axially functioningly raised friction pads (204c).

Figure 38 is a schematic illustration of a variable angle shaft disc (204b) with axially functioningly elevated friction pads (204c).

Figure 39 is a schematic illustration of a side angled axle disc (204b) with axially functioningly elevated friction pads (204c).

Fig. 40 is a three-dimensional schematic view of the brake of the electric lawn mower with the output pulley removed to expose the inner shaft disc (204b).

Fig. 41 is a three-dimensional schematic diagram of the output pulley with multiple teeth (204t) of the brake of the electric lawn mower.

Fig. 42 is an internal schematic view of the multi-toothed (209t) radial centrifugal throwing block (208t) of the brake of the electric lawnmower.

Figure 43 is a schematic diagram of a logarithmic helical brake with automatic brake lock protection.

Fig. 44 is a schematic diagram of a logarithmic helical brake with automatic brake protection with some parts removed.

Fig. 45 is a schematic diagram of a logarithmic helical brake with automatic brake protection with one friction plate removed.

Fig. 46 is a schematic diagram of a brake lever on one side of a logarithmic helical brake with automatic lock-up protection.

Fig. 47 is the schematic diagram of the protrusion dial (227) of the logarithmic helical brake with automatic lock-up protection.

Fig. 48 is a three-dimensional schematic diagram of a logarithmic helical brake with automatic brake protection with some parts removed.

Fig. 49 is a three-dimensional schematic diagram of the back of the logarithmic helical brake with automatic brake protection with some parts removed.

Fig. 50 is a three-dimensional schematic diagram of a logarithmic helical brake with automatic brake protection with the pulley (204) removed.

Fig. 51 is a three-dimensional schematic diagram of the brake ring (201a) installed on the inner frame and having multiple protruding flanges.

Fig. 52 is a schematic diagram of a lawnmower with blowing and suction, watering, fertilization and drug spraying and a logarithmic spiral self-locking brake.

Fig. 53 is a schematic plan view of a blower.

Fig. 54 is an exploded schematic diagram of a blower.

Fig. 55 is a schematic diagram of the dust bag support (35).

Fig. 56 is a schematic diagram of the downward direction of the dust bag support (35).

Fig. 57 is a schematic diagram of the body shell (2).

Fig. 58 is a C-C sectional schematic view of the body shell (2).

Figure 59 is a top view of the auxiliary handle cover (40).

Figure 60 is a schematic illustration of the auxiliary handle cover (40).

Figure 61 is a schematic view of the blowing impeller (16).

Figure 62 is a top view of the auxiliary handle cover (40).

Figure 63 is a schematic cross-sectional view of the auxiliary handle cover (40).

Figure 64 is a schematic view of the upper body shell (2) with a fixed auxiliary handle (2b).

Figure 65 is a schematic view of the rotating shaft (26).

Figure 66 is a schematic diagram of a blow-suction conversion plate (23).

Fig. 67 is a schematic diagram of a dust bag support (35) with additional hook ribs (35b).

Figure 68 is a schematic diagram of the blowing and suction conversion knob (27).

Figure 69 is a schematic diagram of the switch trigger (5).

Figure 70 is a schematic front view of the auxiliary handle cover (40).

Figure 71 is an enlarged schematic view of the cutting edge of the blowing impeller (16).

Fig. 72 is a schematic diagram of the bag binding opening of the dust bag holder.

Figure 73 is a schematic view of the blower with automatic positioner (45) and multiple extension tubes (46).

Figure 74 is a schematic view of a blower with flexible folded tube (47) and blown out multi-extrusion tube (48).

Figure 75 is a schematic view of the automatic positioner (45) and the multi-extrusion tube (46).

Figure 76 is an exploded schematic view of the steerable wheel with the axle bracket (31a).

Fig. 77 is a schematic diagram of a multi-extrusion tube with multi-section pull rods with one end turned inward and the other end turned outward.

Fig. 78 is a schematic diagram of a safety circuit with safety protection added.

Figure 79 is a schematic illustration of a lawn mower.

Fig. 80 is a schematic diagram of a lawn mower and a broom.

Figure 81 is a schematic diagram of an intelligent lawnmower with a charging assembly with automatic charging pins with auxiliary guide rods (234e).

Figure 82 is a schematic diagram of the charging pin ((233)) on the front wall and the guide rail (233c) of the bottom plate.

Fig. 83 is a schematic diagram of four contact pieces (234), pressure piece torsion springs (234a) and rotating shafts.

84 is a schematic diagram of a smart lawn mower with a charging assembly with automatic charging pin insertion and extraction of contact pieces.

Figure 85 is a schematic view of the charging pins ((233) standing on the front wall in front.

Figure 86 is a schematic view of the root of the charging pin ((233) standing on the front front wall.

Figure 87 is a schematic diagram of the charging pin ((233).

Fig. 88 is a schematic diagram of the pressing plate torsion spring (234a).

89 is a schematic diagram of the bottom of a smart lawn mower with a charging assembly with automatic charging pin insertion and extraction of the contacts.

Figure 90 is a schematic view of the contact surface ((234b) of the contact sheet (234).

Fig. 91 is a schematic diagram of a half-side guide groove.

Fig. 92 is a schematic diagram of an intelligent lawn mower with front casters.

Fig. 93 is a working diagram and a schematic circuit diagram of the intelligent garden working machine.

Fig. 94 is a schematic diagram of the charging management circuit of the intelligent garden working machine.

Fig. 95 is a schematic diagram of the charging voltage detection circuit of the intelligent garden working machine.

Fig. 96 is a schematic diagram of the power supply voltage circuit of the intelligent garden working machine system.

Fig. 97 is a schematic diagram of the motor control circuit of the intelligent garden working machine.

Fig. 98 is a schematic diagram of the current operational amplifier circuit of the intelligent garden working machine.

Fig. 99 is a schematic diagram of the braking and backward running circuit of the intelligent garden working machine.

Fig. 100 is a schematic diagram of the motor speed control circuit of the intelligent garden working machine.

As shown in the figure, in the figure:

1. is a small slider; 2. is a tension spring; 3. is a damping box shell; 4. is a large gear; 5. is an inner disc; 6. is a damping turntable; 7. is a small piston; 8. is a compression spring; 9. .is the pinion; 10. is the turning pin; 11. is the coil spring; 12. is the upper plate; 13. is the upper shell; 14. is the main wheel; 15. is the pipe joint; 16. is the lower plate; 17. is the lower shell; 18. is the long pin; 19. is the bracket; 20. is the lower small end cover; 21. is the upper small inner cover; 22. is the upper small outer cover; 105. is the helix angle greater than 23.5 degrees Inner spiral friction wheel; 106. is a helical shaft with a helix angle greater than 23.5 degrees; 23. is a counter-resistance rotary disc; 24. is a counter-resistance rotary block; 25. is a pin shaft; 26. is a torsion spring (26); 41. is Arc-shaped rack; 42. is the gear meshed with the arc-shaped rack; 43. is the toggle lever; 51. is the rear bracket of the guide; 52. is the front bracket of the guide; 53. is the pipe arrangement; 54. is Roller shaft core cover; 55. is a roller; 61. is a flap (61) of a flap clip spring mechanism; 62. is a stage clip (62) of a flap clip spring mechanism; 63. is the damping of a trap clip spring mechanism Box shell (63); 64. is the closely threaded shaft (64) of the flap clip spring mechanism; 65. is the damping box cover (65) of the flap clip spring mechanism; 63a. is the damping box shell of the flap clip spring mechanism The protruding guide rail (63a) of (63); 70. is the ball (70) that ball position lock is arranged; 71. is the position lock box shell (71) that has the axial long groove (71a) that has ball position lock; 72. Be the lock core (72) that ball position lock is arranged; 73. be the torsion spring (73) that L-shaped end (73a) and U-shaped end (73b) are arranged to have ball position lock; 74. be the lock core shaft (74); 25-1. is a reel spring; 25-3. is a reel; 134. is a nylon thread; 25-3b. is an aluminum head of a reel; 25-6. is a line eye insert; 25-7. is the upper cover of the wire box; 126. is the blade sleeve; 127. is the blade; RC. is the insurance; K. is the switch; L3. is the inductance L3; L4. is the inductance L4; C. is the capacitor C; L1 .is the winding L1; L2. is the winding L2; M. is the series motor; AQ. is the start button; 75. is the handle 75; Di. is the diode; R1 is the resistor R1; Light-emitting tube LED; 90c. is the fixed sliding seat 90c of the support seat; 90a. is the slide bar 90a; 90b. is the limit 90b; 85a. is the spline groove 85a; 82. is the large pulley 82; 82a. is the spline 82a; 85d. is the fan 85d; so as to guide the wind; 85c. is the small through hole 85c; 85b. 77. is a series excitation motor; 84. is a motor pulley; 83. is a belt; 82. is a large pulley; 81. is a pull wire; 78. is a pulling rod; 79. is a thrust bearing; 80. is Pulling turret with labyrinth 80; 4-3; 123. is the guard coil 123; 34a. is the notch 34a; 81. is the backguy 81; 80d. is the central hole 80d; 80a. is the labyrinth 80a; 75b. is the plug seat 75b with the handle 75; the head of the handle 75 is provided with a hook; QA2. is the long sheet QA2; QA1 is the briquetting block QA1; QA3. is the limit plate QA3; 201a. brake ring; 203. output shaft; 204. the pulley at the center of the cutting disc; 206. brake pad; 210. Brake tension spring; 211. Cable; 216. Machine screw; 218. Hexagonal screw; 219. Hexagonal nut; 215. Rivet; 223. Solid rivet; 224. Groove edge; 224a. Protruding block assembly; 224b. Protrusion block dial seat; 224c. lower arc; 224d. upper arc; 225. return pull hole; 226. rotation hole; 227. protrusion dial; 228. reset seat; Self-tapping screw; c2. is the body shell; c3. is the power cord; c4. is the cable sheath; c5. is the switch trigger; c6. is the switch trigger spring; c7. is the terminal block; c8. is the cable pressure plate; c9 .is a capacitor; c10. is a self-tapping screw; c11. is a main switch; c12. is a governor; c13. is a rubber gasket; c14. is a motor; c15. is a blade gasket; c17. is a hex nut; c18. is a fan blade plug; c19. is a self-tapping screw; c20. is a rotating shaft cover; c21. is a spring; c22. is a retaining ring; c23. is a blow-suction conversion plate; The bottom shell of the body; c25. is the safety switch; c26. is the rotating shaft; c27. is the blow-suction conversion knob; c28. is the side button; c29. is the torsion spring; c30. is the torsion spring shaft; c31. is the telescopic tube ; c32. is a shaft retaining ring; c33. is a wheel; c34. is a wheel shaft; c35. is a dust bag bracket; 36. is a dust bag; c37. is a hexagon head bolt; c39. is self-tapping screw; c40. is auxiliary handle cover; c41. is auxiliary handle bottom; c42. is M6 nut; c43. is strap; c44. is nylon cable tie; c45. is elastic bead automatic positioner ; c46. is a multi-extrusion tube; c47. is a flexible folding tube; c48. is a blown out multi-extension tube; c2a. is a soft piece; c2b. is the original auxiliary handle; c16a. is a top edge; c16b .is the edge of the side circumference; c31a. is the axle frame; c35a. is the hook; c35b. is the rib of the hook; c35c. is the side clearance of the hook; 035d. The arc-shaped connection handle; c40b. is the radial corrugation; RC. is the insurance RC; K. is the double-pole switch K; L. is the inductance L; C. is the capacitor C; M. is the series excitation motor M; TC. is the triac TC; DC. is the triac DC; R1. is the resistor R1; R2. is the resistor R2; R3. is the variable resistor R3; C2. is capacitor C2; K3. is speed control switch K3; 234e. auxiliary guide rod; 233c. guide rail; 233. is charging pin; 233a. pin ball; 233b. insertion surface (233b); 234d. sensor; 234. Contact sheet; 234a. pressing sheet torsion spring; 234a. pressing sheet torsion spring; 234b. contact surface.

Detailed ways

Build the computer 3D model first, then engrave the mold; then add anti-collision and brakes to the lawn mower. The technical equation and modeling method are:

Using PRO/ENGINEER WILDFIRE drawing software, set up a new working directory, create new parts, and sketch 2 concentric circles.

Open the variable section sweep (Var Sect Sweep) command, select the above 2 circles as the sweep trajectory and the reference trajectory.

Draw a straight line parallel to the plane of 2 circles, the length L=(D-d)/2, and the projection line corresponding to the edge of the circle.

Establish parameter (PARAMETER) 1: C is a real number (real number), which can be assigned a value between 0.01-1 according to specific working conditions, such as 0.3; C is also called wave height. Establish parameter (PARAMETER) 2: N integer (integer), select a value between 2-100 according to specific working conditions, such as 13; N is also called wave number. Establish relation (RELATION), be as the sine wave equation of the present invention: computer default SDi=C*SIN(TRAJPAR*360*N); In the above formula, i is the size digital serial number; SIN=SINE, sine function; TRAJPAR, Trajectory function. Then use instructions such as rotation, merger, and materialization to model it as a function wave plate.

Then input the formula into CNC machining center, use CIMATRO or MASTCAM to make steel mold, or use milling machine, planer and EDM. When EDM is used, input the above equation into the CNC machining center, and the tungsten copper electrode must be produced first.

There are many manufacturing methods; or use the die-casting aluminum alloy manufacturing method to mass-produce the function wave plate with a die-casting machine with a cold press chamber. The base material is aluminum alloy ZL109 or AC8A, and anti-friction material is added. Or use the manufacturing method of die-casting zinc-aluminum alloy, mass-produce it with a die-casting machine with a hot-press chamber, and add friction-resistant materials to the base material in chaos. Or make molds with the prepared function corrugated disc molding cores, and first make a plurality of wax mold cores, and then cast a large number of functional corrugated disc castings with the wax casting method.

In particular, it should be pointed out that the function waveform of the present invention can also use other combinations of various mathematical functions and rough convex and concave, or other slightly rounded waveforms with non-steep broken lines.

To operate the lawn mower with the blower and suction machine for pedestrians, it is better to wear protective glasses and a mask, and the shoulder strap 43 will also be connected to the control handle and the casing; Good auxiliary handle; check the power supply, add a lithium battery or a long power cord, check the insurance again, follow the instruction manual, try to open it, check that there are no broken glass and wires in the area with leaves, and only use the cutting machine with a blower when it is safe. Grass machine to do, but also pay attention to the weather and rain.

The present invention is a significant improvement of lawnmowers commonly used in gardens, parks, roadsides and other places to mow lawns. Some cutting devices are driven by series excitation motors that are not installed in the center but are biased; there are two types of cutting devices, one is a knife with a fan plastic knife seat, and the other is to turn the original lawn mower up. The nylon wire of the reel in the wheel is transplanted on the lawn mower; because the offset series excitation motor gives up the position of the central axis, the center pull wire of the present invention can be used to pull the rotating rod, so that the aluminum head of the reel can be unwound, thereby It breaks the history that the nylon wire cutting device of the mowing head cannot be used for lawn mowers; and because of the use of a winding device with multiple damping mechanisms, that is, a centrifugal slow retraction device, a side piston damping device, a position lock, The winding device complemented by the trap spring damping mechanism, the reverse resistance mechanism, and the angle groove damping mechanism of the pipe rower greatly increases the mowing range of ordinary electric lawn mowers with electric wires. Perhaps it can be said that a lawn mower with both a cutting head and a reel has been created, such a new technological field. Its benefit is to solve the problems of counterweight, power supply and mowing.

An electric lawn mower with a series motor is a lawn mower with both a cutting head and a cord reel, which are described in detail as follows:

The battery bracket assembly provided by the series motor electric lawn mower is provided with a removable bracket for placing the battery at the front of the lawn mower; the battery bracket assembly is shown in Figure 11 , by the fixed sliding seat 90c of the bracket seat at the bottom of the lawnmower, and the movable support 90 that can be drawn out and provided with a slide bar 90a and a limit 90b, and a charger and an inverter not shown Composed of accumulators, the sliding rod 90a of the living bracket (90) is set in the fixed sliding seat 90c of the bracket seat, when it is pulled out and positioned by the limit position 90b, the The storage battery can also put any counterweight. The operator can choose the above-mentioned accumulator for use, but also use the external power supply through the cord reel, so that the grass can be mowed in the lawn area mixed with many trees or under the situation of temporary power failure.

The cutting device assembly provided in the middle of the series-excited motor electric lawn mower is driven by a series-excited motor that is not installed in the center but is biased; there are two types of cutting devices, one with a fan The knife with the plastic knife seat, the other is to transplant the nylon wire of the winding wheel in the runner of the mower head on the original mower to the mower; because the biased series excitation motor gives up the position of the central axis, Only then can the rotating rod be pulled by the central pull wire, so that the aluminum head of the winding wheel can be unwound, thereby breaking the history that the nylon wire cutting device of the mowing head cannot be used for the lawn mower; the series excitation motor electric lawn mower uses a fan The knife of plastic knife seat is on the lawnmower center of the lawnmower, is provided with the knife seat of plastic fan, referring to Fig. The spline 82a cooperates so that the knife of the knife seat is mowed under the drive of the biased series excitation motor; the described knife seat 85 is provided with a plurality of fans 85d so as to guide the wind; and the described fan is provided with There are a plurality of small through holes 85c, preferably hexagonal holes, in order to reduce noise; and the fan is provided with a cutting edge 85b, in order to prevent the grass from being wrapped; Nylon fiber reinforced plastic.

The cutting device assembly provided in the middle of the series-excited motor electric lawn mower is driven by a series-excited motor that is not installed in the center but is biased; there are two types of cutting devices, one with a fan The knife with the plastic knife seat, the other is to transplant the nylon wire of the winding wheel in the runner of the mower head on the original mower to the mower; because the biased series excitation motor gives up the position of the central axis, In order to use the central pull wire to pull the rotating rod, the aluminum head of the winding wheel can be released, thus breaking the history that the nylon wire cutting device of the mowing head cannot be used for lawn mowers; There is the cutting device assembly of mowing head and center backguy pulling rotating rod, referring to Fig. 4 and Fig. 5, by inner frame 76, series excitation motor 77, motor pulley 84, belt 83, big pulley 82, backguy 81, pulling turning Rod 78, thrust bearing 79, the pulling turn frame 80 that has labyrinth, and mowing head are made up of; And described mowing head, also known as coil rope mowing assembly that contains wire box base, can refer to Fig. 10 , is composed of a grass cutting head shell 24-3, a reel spring 25-1, a reel 25-3, a nylon thread 134, a protective coil 123, a wire eye insert 25-6, and a wire box cover 25-7 ; Described blade 127 is located on the circumference of lawnmower cutting disc, and blade cover 126 is placed on blade 127 when not in use, has protective effect; Originally with firm reel aluminum head 25-3b, when line is short , the operator presses down, the aluminum head 25-3b of the reel touches the ground, the spring 25-1 of the reel is compressed, and the reel 25-3 is rotated, so that the nylon wire 134 in it passes through the eyelet insert 25-6, and unwinding, the excessively long line of releasing is trimmed by blade 127; Now instead of pier pressing and touching the ground, so the aluminum head 25-3b of the winding wheel can be saved, but the rotating rod is pulled by the center pull wire, Make reel unwinding; The excessively long line of releasing is trimmed by blade 127; Described nylon line 134, preferably use a kind of mowing machine special-shaped multi-groove line, the feature of described special-shaped line is that it is open on its cross section. There is a notch 34a, at least one, or more, such as 3; the notch is helical along the nylon thread, and is equally distributed along the circumference; the notch is triangular, with Lee mowing; the inner frame 76, above the cutting disc of the grass mower chassis, is provided with a motor pulley 84 on the shaft of the biased series motor 77, and by the belt 83, the driving center line is The large belt pulley 82 at the center of the cutting disc of the chassis; the large belt pulley 82 drives the described grassing head; the large belt pulley 82 is connected with the grassing head shell 24-3, the thread eye insert 25-6, and the wire box The covers 25-7 are connected successively, and the winding wheel spring 25-1 is pressed into the grass cutting head shell 24-3, and the winding wheel 25-3 is pressed, and the nylon thread 134 is installed on the winding wheel 25-3. , and the retaining coil 123; the pulling rotating rod 78 is connected with the reel 25-3, or is fixedly connected, or is connected with a shaft retaining ring, or is threaded, or is connected with a thrust bearing; the Pull the other end of rotating rod 78, through thrust bearing 79, and link to each other with labyrinth pull turn frame 80, described pull turn frame 80 is sleeved with the wire rope of described backguy 81 end, and the other far end of the backguy links to each other with the pay-off joystick 81b on the big armrest of the lawnmower; Move up, and disengage from several hole pits of the upper cover 25-7 of the wire box, and the winding wheel rotates relative to the grass head shell and puts down the line; With respect to the mowing head shell does not rotate and just does not put out the line; The described pull turn frame 80 that has labyrinth, is square frame shape, in order to be difficult for deformation, because with the passing of time of unilaterally easy to draw out of shape; It is provided with Pull the hole 80c of the rotating rod to put the thrust bearing 79 and the insertion rod, its side is provided with a long hole 80b, so that it can be put into the pull wire head; it is provided with a central hole 80d so as to put the backguy, especially it is provided with a labyrinth 80a above it, It has multiple detours, connecting the long hole and the central hole, so that the thick end of the steel wire rope of the backguy is put into the square frame of the pull turn frame 80 through the long hole 80b first, and then the steel wire rope of the backguy is put along the multi-section of the labyrinth 80a. A detour takes a detour into the center hole so that it is not easy to loosen.

The circuit diagram of the series motor electric lawnmower, as shown in Figure 2, mainly consists of insurance RC, switch K, inductance L3, inductance L4, capacitor C, and the series motor M provided with winding L1 and winding L2, And starting button AQ and handle 75, and diode Di, resistance R1, R2, luminescent tube LED, wire winder and plug socket are formed; An overcurrent protector for greater safety; why do you need to add insurance when there is already insurance in the power supply? Because the power supply is also supplied to multiple places, its insurance is often too large, which is not just suitable for this lawn mower.

Referring to Fig. 15, Fig. 16 and Fig. 1, the head of described starter button AQ and handle 75, and diode Di, resistor R1, R2, luminous tube LED, switch K and plug, and each back-moving spring respectively, All are installed on the plug seat 75b with handle 75 of the mower armrest frame; the head of the handle 75 is provided with a hook; the start button AQ is provided with a long sheet QA2, and is connected by a long sheet The briquetting block QA1 is also provided with a limiting piece QA3; when the start button AQ is pressed and the handle 75 is pulled, the hook provided on the head of the handle 75 presses the briquetting block QA1 of the start button AQ, And make the briquetting block QA1 of start button AQ press switch K, just can start; LED is only the effect of an indicator light; one end of the reel is connected to the power supply, and the other end of the reel can be connected with the plug on the plug socket 75b of the band handle 75, and connected to the motor by the switch K.

The operator chooses to install a winding device with multiple damping mechanisms, namely, the wheel housing assembly, the centrifugal slow retraction device, the side piston damping device, the position lock, and the anti-resistance mechanism and the angle groove on the pipe rower. The bracket 19 connected by the long pin 18 on the casing of the coiling device formed by the damping mechanism and which can be rotated slightly within 180 degrees is assembled in the way that it is placed on the front or the middle of the mower; as shown in Figure 1 or Figure 3 also can establish a vertical shaft at the front portion of the lawnmower, and establish hole sleeves on the vertical shaft to assemble in the middle part of the support 19; perhaps, establish a vertical shaft at the middle part of the lawnmower, and in the winding line Holes are set on the central axis of the machine, and assembled on the vertical axis; and the power supply is plugged in and fixed; when the operator is mowing and turning around, it is best to let the line turn from the front of the lawn mower instead of from the back of the lawn mower To turn, that is to say, be careful not to stir your feet. According to the mixed conditions of the grassland and the distance, the operator can also choose to use several or several kinds of damping mechanism winders, because there is space around the fixed large gear 4 to place multiple small gears 9 to connect multiple dampers Mechanism and position locks. Or can use described lithium battery instead. Because described wheel shell assembly is made up of upper shell 13, last big plate 12, coil spring spring 11, inner plate 5, bull gear 4, main wheel 14, joint 15, lower plate 16, lower shell 17, long pin 18, support Composed of 19. The hole of the central axis of the shell is equipped with a lower plate 16 and an inner plate 5 provided with a rotating shaft; the inner plate 5 forms a retracting device through the coil spring spring 11 and the upper plate 12; the inner plate 5 is inserted into the upper small inner cover 21, And then fix and press on the upper case 13 by the upper small outer cover 22 . One end near the center of the circle of the coil spring spring 11 is fixedly mounted on the groove on the shaft of the stationary inner disk 5, and the outer ring of the coil spring spring is assembled on the clamp post at the edge of the rotating main wheel 14, and used The upper large plate 12 is covered by four clamping positions on the edge. So the big gear doesn't move. When the operator pulls the pipeline, because the main wheel 14 is equipped with a line connector 15, the pipeline has been installed on the line joint and the pipeline is wound on the main wheel through the two rollers of the pipe racker, and the main wheel 14 and the lower plate 16 is fixedly connected by screws, and is inserted into the smooth outer shaft surface of the central tube of the lower shell 17 by the central large tube axis of the lower plate 16 through a looper, so that the upper plate 12, the main wheel 14, and the pipe joint 15. The lower plate 16 is rotating relative to the shell; the pinion 9 and the turntable 6 drive the end 30 of the handle pin 10 to run along the cam groove on the bottom surface of the damping box shell 3; when the pull is stopped, the pin of the handle pin The end 30 will be locked due to the reaction of the mainspring; if it is pulled and released, the pin end 30 will not be locked along the groove of the outer ring, and the hose or cable will automatically rewind under the reaction force of the mainspring 11; The pinion 9 of the planetary wheel effect makes the small slide block 1 centrifugally stretch out, contacts with the shell limit and with the small piston 7 and damps. The small slider 1 that is mutually pulled by the extension spring 2 and stretches out along the slideway 6a of the damping turntable 6, especially the involute surface and the parabolic surface of the peach-shaped body of the small slider 1, is aligned with the small piston 7 in a row. And the internal collision of the damping box shell 3, meshing, sliding, friction, and many functions have strengthened the slow retraction damping effect.

The scheme that is constantly newly conceived is to use the fixed large gear 4 in the middle in the used wire reel, and the characteristics that small gears 9 can be installed around it to rotate, add another damping box shell, or replace the existing one. The slow retraction damping device used in this invention can also be referred to as a winding device with a trap spring mechanism and a multi-damping mechanism. Therefore, adding several damping boxes is selected according to the performance required by the customer and the product model. of. And because described flap clip spring mechanism is made up of pinion 9, the closely threaded shaft 64 driven by pinion 9, flap 61, stage clip 62, damping box shell 63, damping box cover 65; It is characterized in that: Described densely threaded shaft 64 is provided with screw thread; Thread preferably adopts fine-tooth standard thread, and its fine-tooth is conducive to shortening shaft stroke, and its standard thread is conducive to processing; Described flap 61 is provided with internal thread, so that with The closely threaded shaft 64 is linked to move up and down; the movable plate 61 is provided with a plurality of outer grooves, preferably 4, so as to slide with a plurality of convex guide rails 63a in the damping box shell 63; The plate 61 is equipped with the compression spring 62, and the other end of the compression spring 62 is in contact with the inside of the damping box shell 63; the damping box shell 63 is assembled on the main wheel 14; the damping box cover 65 is assembled On the top of the damping box shell 63, so when the main wheel 14 retracts, the densely threaded shaft 64 driven by the pinion 9 moves the flap 61 downward, so that the compression spring 62 is more pressed in the box of the damping box shell 63, and the to the damping effect; and when the main wheel 14 is pulled out from the pipeline and reversed, the densely threaded shaft 64 driven by the pinion 9 moves the flap 61 up, so that the compression spring 62 is less pressed in the box of the damping box shell 63; Go round and begin again like this, form the coiling device of the multi-damping mechanism of stage clip mechanism.

In another damping box shell, there is another screw shaft 106 driven by the same pinion 9, which is connected with the inner spiral friction wheel 105 with a helix angle greater than 23.5 degrees; when the shaft rotates forward, the wheel moves down to rub the bottom of the shell , and move up instead; forming the damping effect of the spiral friction one-way mechanism of the damper.

Simultaneously, in another additional damping box housing, under the drive of several identical ones of the pinion gears 9 provided on the periphery of the bull gear 4, the rotation of the turntable 23 is reversed; The anti-resistance mechanism of winding device is by anti-resistance rotating disk 23, anti-resistance rotating block 24, torsion spring 26, bearing pin 25, pinion 9 is formed. The movable anti-resistance rotary block 24 that is inserted into the pin shaft 25 that is inserted into the pin shaft 25 of the anti-resistance turntable, especially four evenly distributed holes 23c, is usually placed on the plurality of torsion springs, especially Under the action of the torsion spring 26 at one end and the other end of the torsion spring inserted into the four evenly distributed small holes 23b, the small arc surface 24c of the anti-resistance block 24 does not touch the inner wall of the damping box shell, but reverses the anti-resistance rotation. The chord surface 24d of block 24 is close to the inner wall, that is to say, there is no hindrance when it is pulled forward, and the stop protrusion 24a of the reverse block 24 is matched with the limit block 23a of the limit turntable. However, when retracting in the reverse direction, the anti-blocking block 24 will be centrifugally deflected by the centripetal force when the speed is fast, so that the small arc surface 24c of the anti-blocking block 24 touches the inner wall of the damping box shell, resulting in a reversed resistance effect.

Because be located at the upper case 13 of winding device, the 2 holes of the guider rear support 51 of the guider 53 of laying 2 roller shaft core covers 54 at the exit of lower case 17 are all changed into as shown in Figure 29 The long circular grooves with an angle a shown in each other, so that the two axes of the roller shaft core cover are far away along the angle groove 51a when the tube is pulled out, that is, the roller is loose, and when pulled in, it is along the angle groove 51b The angle groove type damping mechanism with variable elasticity that is close to the roller is tight. When the operator pulls out the line, the rollers are subjected to outward friction force, so that the roller shaft core cover 54 on which the rollers 55 are placed is pulled out and approaches along the angle groove 51a; The roller axle core cover 54 that lays in the angle groove of 51, can refer to Fig. 24, by the fixed distance of original 2 axle centers, change dynamic distance; The small tension spring hole 54c provided with the pull block is gently pulled by inserting the two ends of a tension spring 54b with a smaller pulling force into the small tension spring hole respectively; Roller 55, and movable pipeline is installed between two rollers; The guider front support 52 of described pipe rower 53 and guider rear support 51 have just formed the angular slot that places roller shaft core cover as shown in Figure 23 The shown long circular grooves with an angle a to each other form the effect that the two axes of the roller shaft core cover are farther along the angle groove 51a when the tube is pulled out, that is, the rollers are loose. And when the line retracts, because the angle a of the long circular grooves with an angle a between the roller shaft core covers (as shown in Figure 23) is placed in the angle groove is between 1 degree and 23 degrees, and because the pipeline enters the disk after taking into account It is turning to the left, so that the angles between the two sides with the angle a to each other and the vertical line are such that the left angle β is smaller than the right angle γ, so when the tube is retracted, the roller is subjected to an inward force. The friction component makes the roller shaft core cover 54 for placing the roller 55 close along the angle groove 51b when it is pulled in, and the angle groove for placing the roller shaft core cover makes the two axes of the roller shaft core cover approach, thus forming a The groove 51b is closer, that is, the angle groove type damping mechanism with a variable degree of tightness of the rollers.

Because the technical solution of the ball position lock and multi-damping mechanism winding device of the present invention to solve the problem of its arbitrary position lock can be called a ball position lock, the key of technological innovation lies in the ball; In the wire reel, utilize the fixed large gear 4 in the middle, and the characteristics that small gears 9 can be installed around it to rotate, install the above-mentioned tube winding device with ball position lock and multi-damping mechanism, which has a ball The position lock is made up of pinion 9, the lock core shaft 74 driven by pinion 9, ball 70, torsion spring 73, lock core 72, position lock box shell 71; described position lock box shell 71 is assembled on the main wheel 14 Above, the torsion spring 73 is sleeved on the lock core shaft 74, and the normal state is a tight sleeve; the lock core 72 is loosely fitted on the torsion spring 73 and the lock core shaft 74 and loaded into the The position in the lock box shell 71; the lock cylinder 72 is provided with an eccentric heart-shaped lock groove, which is eccentric so that the ball in the groove moves along, and the bottom of the heart-shaped recess is the position of the lock when the ball enters; its characteristics Be: described ball 70 is smooth, preferably steel ball; Because ball 70 possesses by six degrees of freedom again, i.e. the characteristic of three translational degrees of freedom and three rotational degrees of freedom, so during activity, ball just Less split torque than handlebar pins or locking pins, and less prone to occasional seizure. The torsion spring 73 is dense and has a circular cross-section, which is convenient for processing its multi-curved L-shaped end 73a and U-shaped end 73b, and is also convenient for the core to not be easily worn due to square twisted edges during work. axis. And because its end 73a of described torsion spring 73 is L-shaped, so be beneficial to be stuck on the above described lock core 72; And the other end 73b is U-shaped, has two sides, so is beneficial to described The promotion of the ball 70; and because the end 73a of the torsion spring 73 is stuck on the lock core 72, and the end 73b of the torsion spring 73 stretches out to the heart-shaped lock groove of the lock core 72 In the square hole near the apex of the heart, and in contact with the ball 70; the ball 70 is movably installed in the axial long groove 71a of the position lock box shell 71 and the heart-shaped lock groove of the lock core 72, and It is in contact with the end 73b of the torsion spring 73 that is sleeved on the lock core shaft 74 and extends to the lock core 72, so as to be linked with the heart-shaped lock groove of the lock core 72 and lock the axial direction of the box shell 71 with the said position. The long groove 71a moves up and down, and its goal is to make the inner diameter of the torsion spring seal become larger when the ball 70 pushes the end 73b of the torsion spring 73 into place, so as to loosen the lock driven by the pinion 9. The mandrel 74 makes the pipeline free; and when the ball 70 falls to the locked position, the end 73b of the torsion spring 73 is not pushed, so that the inner diameter of the torsion spring seal becomes smaller, so as to tightly wrap the pinion 9 The driven lock core shaft 74 keeps the pipeline stationary; thereby forming a winding device with a ball position lock and multiple damping mechanisms. When the operator pulls the pipeline, because the main wheel 14 is equipped with a joint 15, the line has been installed on the joint and the line is wound on the main wheel, the main wheel 14 and the lower plate 16 are fixed and connected into one body by screws, And be inserted on the smooth outer axis table of the center large tube of lower shell 17 by the central large tube axis rotation ground looper of lower plate 16), so upper large plate 12, main wheel 14, pipe joint 15, lower plate 16 is relative to The casing is rotating; the main wheel 14 drives the pinion 9 when the line is pulled out. When the pull is stopped, the ball 70 will run into the heart-shaped concave groove along the eccentric heart-shaped lock groove provided with the lock core 72 (eccentrically so that the ball in the groove moves forward) due to the reaction of the mainspring. Enter the bottom, when the ball enters the position of the lock, it is locked; pull a point and loosen the pipeline, without lock, the hose or cable will automatically rewind under the reaction force of the mainspring 11. In some cases, if the left and right rotation angle is too large, a joint with double slip rings and carbon brushes can be installed in the middle of the shaft of the reel, or on the aforementioned vertical shaft for installation, so as to protect some Wires that are hardened by the Brinell test of copper and aluminum wires.

Because on the electric lawn mower, the anti-collision safety device that is located at the front part of the lawn mower chassis is located on the described living bracket (90) of the described support assembly, the support seat that is installed on the lawn mower chassis fixed sliding seat (90c), and a movable support (90) that can be pulled out and provided with a slide bar (90a) and a limit (90b), the slide bar (90a) of the live support (90) is set In the fixed sliding seat (90c) of the support seat, when pulled out, it is positioned by a limit position (90b), which is characterized in that the living support (90) is covered with rubber skin, and the limit position (90b) is provided with a limit switch, so that when the slide bar (90a) of the described live support (90) is retracted when the front collides with the outer rubber skin of the said live support (90), the said limit switch (90b) is triggered. ) is provided with a limit switch to form an anti-collision safety device; the brake in the middle part of the mower chassis of the series-excited motor electric lawn mower of the brake located in the middle part of the mower chassis includes the inner Frame (76), is contained in the top of the cutting disc of lawn mower chassis, and the offset series excitation motor (77) is installed on the described inner frame, on the shaft of the offset series excitation motor (77), Motor belt pulley (84) is provided, and by belt (83), the belt pulley (204) that drive centerline is at the cutting disc center of chassis; 204) fix a function wave plate brake pad (206) used as braking with machine thread (216) above; fix a brake fixing plate (207) on the inner frame (76), use hexagonal screw (218) and hexagonal The nuts (219) are mutually fixed; the brake fixing plate (207) is provided with a movable brake lever (208), connected by rivets (215), and can rotate flexibly; the brake lever (208) is provided with a friction plate ( 209), connected with solid rivets (223), through the brake tension spring (210) acting on the brake fixing plate (207) and the brake lever (208) to make the friction plate (209) and the pulley (204) The function wave plate brake pad (206) brake tension of the usefulness of braking; Brake lever (208) is connected with control handle with a drag cable (211), so that brake clutch; , the cable drives the brake lever to rotate, so that the friction plate is separated from the brake plate. At this time, the brake tension spring is stretched, so that the brake tension spring accumulates elastic force. When the start lever is released, the power is cut off, and the pulley loses power. The brake extension spring releases the elastic force to make the friction plate tense the brake plate, so that the belt pulley stops rotating, and the brake function is realized. The series-excited motor electric lawn mower with logarithmic spiral brakes for automatic brake protection is characterized in that it is provided with logarithmic spiral brakes; it is also characterized in that it is equipped with watering and A hose reel for fertilizing and spraying through liquid pipelines; the brake includes an inner frame (76), and a motor (77) is installed on the inner frame, and the shaft of the motor (77) On, be provided with motor belt pulley (84), and through belt (83), drive the belt pulley (204) that central line is in the cutting disc center of chassis; Axle (203) connects working tool such as lawn mowing knife; One end of brake extension spring (210) is fixed with machine tooth screw (216) above described pulley (204), the other end of described brake extension spring (210) One end is connected with the return pull hole (225) of the brake lever (208a) used for braking; the brake lever (208a) is provided with a rotation hole (226) and is connected in the pulley (204) by a rivet and can rotate flexibly; the brake lever (208a) is provided with a friction plate (209); the inner frame is equipped with a fixed brake ring (201a); the outer sleeve of the output shaft (203) has Coaxial protrusion dial (227); the edge of the protrusion dial (227) is provided with a protrusion dial seat (224b); the edge of the protrusion dial (227) is also provided with a reset seat (228), so that the reset stage clip (228a) is installed and resets; The protrusion assembly (224a) is assembled on the described protrusion dial seat (224b); (224d), the groove edge (224), the lower circular arc (224c), and the hollowed out arc groove surrounded by another groove edge (224); the upper circular arc (224d) is a semicircular arc, and its The distance from the center of the circle to the center of the output shaft (203) is farther than the distance from the center of the lower arc (224c), which is also a semicircle, to the center of the shaft of the output shaft (203), so that the arc The groove edge (224) of the groove does not follow the concentric circle along the axis of the output shaft, but is eccentric, which just forms a cam in essence; insert the lug assembly (224a) on the lug dial (227) to the arc-shaped groove and slide along the groove edge (224), which forms a substantial cam structure; when the series-excited motor stalls, although there is an electromagnetic emergency stop in the series-excited motor, the mower has a large inertia Difficult to stop in an emergency, in order to make the lawn mowing knife stop in an emergency to meet the safety regulations, a brake is needed; when the series excitation motor stops, the pulley (204) driven by the motor stops, and the brake lever ( 208a) Lose the inertial centrifugal force thrown outwards, rotate the rotating hole (226) through the rivet, and the return pull hole of the brake lever (208a) connected by the brake extension spring (210) (225) and turn back position, just make the friction disc (209) that is provided with on the brake lever (208a) lock brake the fixed brake ring (201a) that is equipped with on the described inner frame; When the brake lever (208a) turns back to the position, due to the brake lever (20 8a) is provided with a hollowed-out arc-shaped groove surrounded by an upper arc (224d), a groove edge (224), a lower arc (224c), and another groove edge (224); The circular arc (224d) is a semicircular arc, and the distance from its center to the axis of the output shaft (203) is farther than the distance from the center of the lower circular arc (224c), which is also a semicircular arc, to the output shaft (203) ) axis distance, so that the groove edge (224) of the arc groove does not follow the concentric circle along the axis of the output shaft, but eccentric, which forms a cam in essence; insert it into the arc groove and The protrusion assembly (224a) on the protrusion dial (227) sliding along the groove edge (224) presses and pushes from the upper circular arc (224d) to the lower circle according to the principle of a cam structure in essence. arc (224c), because the outer casing of the output shaft (203) is equipped with a coaxial lug dial (227), thereby making the working tool connected to the output shaft (203) such as a lawn mower stop; otherwise , when the series excitation motor is rotating, the pulley (204) driven by the motor rotates, and the brake lever (208a) is subjected to the inertial centrifugal force thrown outward, and passes through the rotating hole (226) When the rivet is turned away as a fulcrum, the friction plate (209) provided on the brake lever (208a) is separated from the fixed brake ring (201a) provided on the inner frame, and at the same time, due to the The edge of the protrusion dial (227) is also provided with a reset seat (228), which facilitates the reset of the reset clip spring (228a) installed. The more improved and perfect series-excited motor electric lawn mower with logarithmic spiral brakes for automatic brake protection is characterized in that: the fixed brake ring (201a) installed on the inner frame is made of metal In order to facilitate heat resistance and wear resistance; and the brake ring (201a) has a plurality of protruding flanges in order to facilitate clamping. The arc shape of the friction plate (209) provided on the brake lever (208a) is a segment of a logarithmic spiral. The protrusion dial seat (224b) provided at the edge of the protrusion dial (227) is provided with a through hole and a square pit for installing the protrusion assembly (224a). The protrusion assembly (224a) installed on the protrusion dial (227) includes bolts, nuts and sliding sleeves. The lug assembly (224a) installed on the lug dial (227) includes bolts and nuts, sliding sleeves and bearings. The resetting seat (228) provided on the protrusion dial (227) is a protruding cross shape to securely install the resetting compression spring (228a). The brake lever (208a) is provided with an upper circular arc (224d), a groove edge (224), a lower circular arc (224c), another groove edge ( 224) the hollowed-out arc groove that surrounds. The arc shape of the groove edge (224) of the hollowed out arc groove provided on the brake rod (208a) is a segment of a logarithmic spiral, so the pressure angle at any position is equal and not stuck. The liquid fertilizer used for fertilization is contained in the tube of the hose reel of the lawn mower with watering, fertilizing and spraying and anti-collision logarithmic spiral automatic brake. Fertilizer; or use liquid pesticide or spray water, so it is easy to use one machine for multiple purposes.

The advantages of the present invention are: enhanced anti-collision insurance and braking effects, optional mowing and mowing, and super large activity area; a lithium battery is provided on the lawn mower, and a hose reel is provided for entering and exiting freely; It solves the worldwide problem that the reel sometimes fails; the new collision retraction triggers the limit and anti-collision function, strengthens the counterweight to facilitate the pressing of the grass and protects the moisture, and the slope is 16.7 degrees to prevent it from tipping. The lawn mower is up to the standard, comfortable and convenient for users. It does not need an internal combustion engine, which saves fuel and energy, and is beneficial to RoHS emission and environmental protection. The anti-collision security and the relaxation brake can ensure braking, which is beneficial to anti-collision and solves the occasional injury caused by hard objects in the grass. The knife or the problem of overturning the lawn mower; the addition of batteries and the reel that can move forward and backward freely and pull and stop doubles the mowing range; the function of the wave disc brake is an innovation, and the brake is also equipped with a shaft The shaft plate of the friction block that gradually rises according to the function, and the pulley with internal multi-internal teeth, and the radial centrifugal throwing block with multi-curved teeth can be suitable for various models, and the invention is boring Brake gathers energy to relax and hold the brake, and the new concept of braking with intermittent pulsation to disperse energy is a pioneering work; anti-collision insurance, ensuring braking, cutting and hitting, and advancing and retreating freely, these are easier said than done; The rotating rod of the labyrinth makes the winding wheel unwind, thus breaking the history that the nylon wire cutting device of the mowing head cannot be used for the lawn mower, and the special-shaped multi-groove nylon wire is also conducive to sharp cutting grass, energy saving and noise reduction; and because of the adoption of Winding device with a variety of damping mechanisms instead of a single one, multiple complementary and more reliable, that is, centrifugal slow retraction device, side piston damping device, position lock and ball position lock, reverse resistance mechanism, pipe rower angle groove type The hose reel complementary to the damping mechanism greatly increases the mowing range; perhaps it can be said that it has created a new field of lawn mowers with watering and fertilization and spraying and anti-collision logarithmic spiral automatic brakes ; and the invention of the function of the wave plate to change the boring brake to gather energy into relaxation and holding the brake, the new concept of braking that pulsates intermittently and disperses the energy is also used in various fields as a pioneering braking method; there is a logarithm of automatic locking brake protection The helical brake lawnmower, because the arc of the brake lever has a logarithmic spiral with the characteristic that the pressure angle is equal everywhere, it forms a substantial brake with a cam structure, which has been mass-produced and solved. It solves the problem that it is not easy to make the lawn mower stop suddenly and meet the safety regulations. The liquid fertilizer in the tube of the hose reel is easy to replace with soluble pesticide or fertilizer in percentage. The functions of watering, fertilizing and spraying are added, and the range of use is wide, and the activity area is large; the liquid fertilizer used for fertilization in the tube of the hose reel is a percentage of soluble fertilizer added to the water. Or the liquid pesticide that is used for sprinkling is housed in the pipe of the hose reel, is that the pesticide that dissolves is added in the water. Operate the walker to pull the self-propelled control handle, and through the steel wire rope and the driving lever, the clutch block moves axially to engage. The clutch block of the clutch device in the rear wheel drive gear reduction clutch of the self-propelled mechanism of the present technology not only engages by the cone on the side of the clutch block, but also has the waveform of the end face to assist the engagement. When the walker releases the self-propelled control handle, the steel wire rope and the driving rod are elastically reset, so that the clutch block moves axially to leave. Because the end face is a smooth sinusoidal wave, it is easier to leave than the jaw clutch block. Be located at the blower (229) on the mower, the dust bag support (35) of its blower (229) is connected with dust bag (36), and described dust bag (36) has pipeline and mower The grass collection box at the grass machine rear portion is connected; the blower (229) is provided with a trumpet-shaped blower (230); (232) blow and suck directly. The blowing and suction blades of the blowing machine and the chassis and the broom are all used, and the blowing and sweeping effect is remarkable, and they are all swept into the dust bag of the grass collection box at the rear of the lawn mower.

The invention relates to a tool for blowing and sucking leaves and mowing grass in places such as flower beds, gardens, parks and roadsides. The improvements include adding soft sheets to the dust outlet of the casing, adding blades to the blowing impeller, adding insurance and double switches to the circuit, and adding sound-absorbing and vibration-damping materials and honeycombs inside and outside the blowing and suction machine, changing the rollers to steerable, and changing the single extension The tube is changed to multi-extrusion tube or flexible folded tube, and the coaxiality is improved, the dynamic balance is measured, and the method of laser aiming at the tooling is used to reduce the volume. The blowing and suction port is trumpet-shaped, which is beneficial to blowing and sucking more widely and improving the quality. and security.

Inspired by the ideal implementation method of the present invention, through the contents of this specification, relevant workers can make various changes and modifications within the scope of not departing from the technical idea of the present invention. For those skilled in the similar field, there are obviously many modifications equivalent to the technology, but under the premise of not deviating from the essence of the claims, the modifications still fall within the protection scope of the patent.

The specific implementation mode that the present invention takes to solve its technical problem is explained in detail again below:

Because of the improvement of a low-vibration leaf blowing machine, including the addition of a movable auxiliary handle, the improvement of the dust bag bracket and the opening, that is, the dust outlet of the main body shell is added with a soft piece, the blowing impeller is added with a blade, and the circuit is added with an insurance. And double switches, and the sound-absorbing and vibration-reducing materials and honeycomb inside and outside the blowing and suction machine, the rollers are changed to steerable, and various comprehensive improvements are made from changing single-extrusion tubes to multi-extension tubes or flexible folding tubes, so the operating feel and effects are improved. Because the improved low-vibration leaf blowing machine is composed of self-tapping screw 1, body casing 2, power cord 3, cable sheath 4, switch trigger 5, switch trigger spring 6, terminal block 7, cable pressing plate 8, Capacitor 9, self-tapping screw 10, main switch 11, governor 12, rubber gasket 13, motor 14, fan blade gasket 15, blowing impeller 16, hex nut 17, fan blade plug 18, self-tapping screw 19, Rotating shaft cover 20, spring 21, retaining ring 22, blow-suction conversion plate 23, body bottom shell 24, safety switch 25, rotating shaft 26, blow-suction conversion knob 27, side button 28, torsion spring 29, torsion spring shaft 30. Telescopic tube 31, retaining ring for shaft 32, wheel 33, wheel shaft 34, dust bag holder 35, dust bag 36, hex head bolt 37, square auxiliary handle knob 38, self-tapping screw 39, auxiliary handle cover 40, auxiliary handle bottom 41, M6 nut 42, strap 43, and nylon cable tie 44, elastic bead automatic positioner 45, or multi-extrusion tube 46, or flexible folding tube 47, blown out multi-extension tube 48 Composition; said self-tapping screw 1 is a plurality of, and it fixes said upper body shell 2 and the upper body bottom shell 24; During its assembly method, the pneumatic screwdriver or the electric screwdriver of fixed torque will be used to beat the self-tapping screw , so that the torque is reasonable and uniform; and because the upper body shell 2 and the lower body shell 24 are assembled from one left to one right, it contains handle parts, auxiliary handle parts, extension tube limiter parts, and motor worm gears. The shell part, the blowing and suction changing door part, the dust outlet part, and several external parts; on the handle parts of the upper body shell 2 and the lower body shell 24 assembled from one left to one right, install all the parts in sequence. The power cord 3, the cable sheath 4, the switch trigger 5, the switch trigger spring 6, the terminal block 7, the cable pressure plate 8, the capacitor 9, the self-tapping screw 10, the main switch 11, and the governor 12; On the motor volute parts of the left-right assembled body shell 2 and the body bottom shell 24, install the rubber gasket 13, the motor 14, the fan gasket 15, the blowing impeller 16, and the hex nut 17 in sequence. , fan blade plug piece 18; at the blowing-suction door-changing position of the main body shell 2 and the main body bottom shell 24 assembled from one left to one right, the self-tapping screws 19 are sequentially loaded, and the shaft cover 20 is rotated , spring 21, retaining ring 22, blow-suction conversion plate 23, body bottom shell 24, safety switch 25, rotating shaft 26, blow-suction conversion knob 27; and the extension tube stopper position of the main body bottom shell 24, sequentially pack the side button 28, the torsion spring 29, the torsion spring shaft 30 and the telescopic tube 31; the telescopic tube 31 includes a cylinder and a square tube And interconnected at the front part, and a wheel setting position is provided at the front lower part; the wheel setting position provided at the front lower part of the telescopic tube 31 is sequentially loaded into the shaft retaining ring 32, the wheel 33, and the wheel shaft 34 ; At the dust outlet position of the main body shell 2 and the bottom shell 24 assembled from left to right, there is a soft sheet 2a; the soft sheet is at least one piece, or a plurality of pieces, such as three pieces, As shown in Figure 4, Figure 5 and Figure 11; the soft sheet is usually located on the upper shell, depending on the model, Or set it on both shells; the soft sheet is usually directly injection molded on the shell, which is triangular or oblique or trapezoidal; or, if the soft sheet is not directly injection molded on the shell, a flexible material such as fiber fabric, so it will not be too violent when blowing out sundries into the bag, and the bag mouth is not easy to fall off; The outside of the mouth position is provided with two draw-in slots, so it is convenient to hang the dust bag support 35 and the dust bag 36; and because the dust bag support 35 is provided with a hook 35a, a hook rib 35b, and a hook side clearance 35c , and the large bagging ring 35d and the small bagging ring 35e; the original hook rib 35b has only 2, and the supporting force is poor, causing the hook 35a to loosen occasionally; now it is changed to the hook rib 35b, and there are 3 or more more, the supporting force is higher, so that the hook 35a is not easy to get loose; the dust bag (36) is made of fiber fabric, and is provided with a zipper and two joint buckles, so that the buckle is hung on the shell. on the hook of the external hanging part; and the zipper is used to open the bag to pour out the broken leaves; and because an improved method of binding the bag opening with the dust bag bracket is adopted; Nylon cable tie 44 is placed in the fiber fabric of dust bag 36, wraps it and makes suture 36 with sewing machine, then opens the zipper, wraps the suture 36 of the fiber fabric of dust bag 36 prepared The cable tie 44 is put between the large bagging ring 35d and the small bagging ring 35e of the dust bag support 35, and stretches into the pliers from the large opening of the zipper to tighten the nylon cable tie 44 with the barb buckle , and cut off the too long belt, it is easy to make, and the bag is firm; and because of the auxiliary handle parts of the body shell 2 and the body bottom shell 24 that are assembled on the left and right, according to this Put the hex head bolt 37, the square auxiliary handle knob 38, the self-tapping screw 39, the auxiliary handle cover 40, the auxiliary handle bottom 41, and the M6 nut 42 to form a movable auxiliary handle; the auxiliary handle On the auxiliary handle cover 40, referring to Fig. 6, Fig. 7 and Fig. 10, there is an arc-shaped connecting handle 40a, so it is convenient to protect the back of the hand, and there are also a plurality of radial corrugations 40b at the end, which is also beneficial for the card position . The auxiliary handle 2b on the blowing-suction casing of another original style, as shown in FIG. 11 , is fixed, which is not as good as the auxiliary handle cover 40 described above.

Because the improved safety circuit with safety protection provided by a kind of low-vibration leaf blower provided by the invention is adopted, it is safer. The improvement of the described a kind of low-vibration leaf blower, it contains the safety circuit that adds insurance protection, referring to the circuit schematic diagram as shown in Figure 25, by terminal block 7, insurance RC, double-pole switch K, inductance L, Capacitor C, and the series excitation motor M that is provided with winding, and governor 12 are formed; Described governor 12 is made up of bidirectional thyristor TC and bidirectional thyristor DC, resistance R1, resistance R2, variable resistance R3 is composed of capacitor C2 and speed control switch K3; the present invention is specially added with double-pole switch K and insurance RC, which uses fuse, or uses thermal relay, or uses overcurrent protector, in order to be safer; why is it already in the power supply? If you have insurance, do you need to add insurance? Because the power supply is also supplied in many places, its insurance is often too large, and it is not just suitable for this leaf blowing machine; the variable resistor R3 and the speed control switch K3 are essentially potentiometers, and when they are rotated, they can be turned on and off. The conduction angle of the bidirectional thyristor is changed to make the motor speed adjustable, and when it is turned to the end point to close the speed regulating switch, it is at full speed.

Because adopt the improvement of described a kind of low-vibration leaf blowing and aspirating machine, especially adopt the material of different matching according to different models, it includes inside and outside of blowing and aspirating machine and in many places of blowing and aspirating machine add shock-absorbing sound-absorbing material and honeycomb The vibration reduction scheme of the structure is a major contribution of the present invention, so the vibration reduction and noise reduction scheme can also be used in other types such as mowers and vacuum cleaners. Because the vibration-reducing foam plastic is added outside the motor, and the shock-absorbing and noise-absorbing materials are added to multiple places of the blower and suction machine, and the honeycomb structure is arranged in multiple places in the blowing and suction air ducts, the schematic diagram of vibration-reducing and noise-eliminating is shown in Figure 4. 43; inside and outside the casing, and inside and outside the telescopic tubes, there are multiple vibration-reducing and noise-absorbing honeycomb structures, which are in the form of many densely interconnected hexagons and contain noise-absorbing wedge structures. The density and width-to-depth ratio , is related to the vibration parameters and noise characteristics of the blower and suction machine, and it needs to be tested many times; the shock-absorbing and noise-absorbing materials installed inside and outside the casing, inside and outside the telescopic tubes and outside the motor, or use metal fibers or non-metal materials , filled or semi-filled; or use medium-temperature-resistant sound-absorbing materials, especially porous sound-absorbing materials, or flexible materials, and film-like materials; the porous materials can be fibers, foams, particles, or used alone. More or less mixed applications are also available; fibers such as rock wool, or glass wool, or glass wool, especially ultra-fine glass wool can be used; or foam, which is fireproof at places where the temperature rises, such as motors; or use Particles such as expanded perlite, porous clay bricks, and temperature-resistant fabrics and felts are used to fill or attach; the honeycomb structure can also be prefabricated and attached, or mixed and molded. Because the sound absorption coefficient of each material (standing wave tube method sound absorption coefficient, reverberation method sound absorption coefficient) is different, the incident angle also affects the sound absorption coefficient, some are better for high-frequency sound absorption, and some are better for low-frequency sound absorption. Well, a variety of materials have complementary performance, vibration waves and noise are reflected, transformed, absorbed, and attenuated, so it is beneficial to further improve performance indicators.

The annex of original blower product only has braces 43, is to hang on the shell and carry on the operator's shoulder; Protective glasses and insurance; the blower is installed on a lawn mower with four wheels, which uses wheels and carts, so it not only improves the product grade, but also facilitates users. The strap 43 can be used to remotely fine-tune and control the blower Blowing position.

Because of the improvement of a kind of low-vibration leaf blower, it contains the improvement of blowing impeller and cutting edge, that is, adding cutting edge at said blowing impeller, as shown in Figure 8, and the enlarged cutting edge as shown in Figure 18, Containing the top edge 16a and the side peripheral edge 16b, the angle between the top surface of the impeller blade of the top edge 16a and the front surface of the impeller blade is an acute angle; The included angle between the peripheral surface and the front of the blade of the blowing impeller is also an acute angle; the cutting edge provided by the blowing impeller is either locally shorter along the edge of the front of the blade, or is longer along most of the edges; its cutting edge is a straight blade Either a curved blade or a multi-fold blade, and the curved blade is an Archimedes line or a parabola. As an improvement, the blowing impeller may also or additionally be equipped with a blade steel knife, such as a bar knife; as an improvement, on the described blowing impeller blades, a plurality of oval and hexagonal blades may also be provided. Noise reduction holes, which are good for debris and suction.

Because the rollers that touch the ground are changed to be steerable, it becomes an easy-to-turn blower, which not only adds another variety of blower, but also satisfies some pedestrians who like and are used to using the blower, especially when they encounter When in the corner, look left and right and turn the angle to blow and suck to facilitate the work requirements. Because the axle frame below the original telescopic tube 31 head is disassembled, it becomes an independent part axle frame 31a, and a hole is established at the place where the wheel axle frame is placed under the original telescopic tube 31 head, to insert The vertical axis of the ring slot on the axle frame 31a is as shown in the exploded view of Figure 23; the rest are the same as before, and the wheel axle 34 is still worn in the axle frame 31a, and a pair of wheels 33 are mounted on each Shaft is with retaining ring 32, so it is also more convenient.

Because the improvement is adopted, that is, as shown in Figure 20 and Figure 22, the single extending tube is changed into multiple extending tubes 46, and an automatic positioner is provided, such as an automatic positioner 45 for elastic bumping beads, or an automatic positioner for bumping blocks. , or the automatic positioner of the torsion spring, instead of pressing the button by hand, the volume is reduced, and it can be pulled and retracted at will and automatically positioned, which improves the work efficiency and reduces the transportation cost. The multi-extrusion tube 46 matched with the automatic positioner is multi-section, for example, 4 sections; the multi-extension tube 46 is provided with a groove to match the positioner. Reminiscent of the principle of the pull-rod antenna that can be freely pulled in and out, it is improved and used in a blower to make a multi-extended tube 46, as shown in Figure 24, it may be advisable to call the small suction tube a multi-extended tube 48; The characteristics of many stretching pipes 46 and many stretching pipes 48 are that one end is turned inward, and the other end is turned outward; They can be returned freely, because they all have convex and concave locking positions at the flanges. Because the pipe length of the blowing machine is only 0.9 meters according to the standard such as IEC60335-2-100, or according to the standard such as BSEN15503:2009, the length of the tie rod can be implemented. Not only did I think of the principle of the accordion that can be pulled in and out freely, as well as the commonly used stackable hoses of vacuum cleaners and washing machines, but also improved it and used it as a multi-extrusion tube for the blower and suction machine, as shown in Figure 21. Referred to as flexible folded tube 47; for convenient positioning, or with multi-extended tube (48) and use; the feature of described flexible folded tube 47 is: it has multiple folds, no matter its section is square or round or In other shapes, the adjacent circumferences of the tubes are arranged alternately in a large circle and a small circle, that is, one thick joint followed by another thin joint, and the joints are multi-jointed, at least 4 or more; or, all The pipe material of the flexible folded pipe 47 described above is made of flexible materials such as fabric, cloth, and plastic film, and a plurality of rings are arranged at intervals along the flexible pipe, or along the flexible pipe, a helical spring is set as an interval ring, so as to support and pull in. out; the helical spring is sparse and flexible so it can be retracted considerably.

Another important provision for the improvement of a low-vibration leaf blowing and sucking machine because of the adoption of the present invention is the laser-containing method for improving manufacturing and assembly accuracy, which is to improve the coaxiality of the motor and the blowing impeller and the measurement of the dynamics. A balanced combination of precision molded parts and improved laser alignment tooling results in improved product quality. Because the vibration and noise of the blowing machine are largely rooted in the precision and shape tolerance of the power and tools, it is necessary to improve the coaxiality of the motor and the blowing impeller, and to measure the dynamic balance, in order to ensure the low vibration of the blowing machine. Noise, a long-standing problem that has been left over for a long time, has a certain effect; first, the requirements for shape and position tolerances have been increased from the drawing design, such as the requirements for the coaxiality and shape and position tolerances of the motor and blowing impeller assembly. The interference between the motor and the blowing impeller is then pressed together with the afterburner fixture; moreover, the precision mold is prepared by the CNC machining center, and the plastic parts such as the blowing impeller are post-processed. The main method is to use high-temperature steam method. It is best to steam for more than three hours, so the size of the plastic parts is not easy to be deformed and out of shape; secondly, in order to improve the coaxiality of the motor and the blowing impeller, when assembling, use a special calibration motor and blowing impeller assembly with laser alignment The tooling press, after pressing, is put into the production line after batch sampling and dynamic balance correction, and finally the whole machine is also sampled and tested for dynamic balance, so it is supplemented with multiple shock-absorbing and noise-absorbing materials to comprehensively form an effective An improved and shock-absorbing, safe and easy-to-use high-grade low-vibration leaf blower.

A lawn mower with a chassis blade broom for blowing, watering, fertilizing, spraying, and holding brakes, which is a coiled pipe with a logarithmic spiral brake for anti-collision insurance and a liquid pipeline for watering, fertilizing, and spraying It is a multifunctional lawn mower with a lawn mower; it is equipped with four major assemblies on an ordinary lawn mower, which is a battery bracket assembly with a charger and an inverter, and a cutting machine driven by a series excitation motor. Device assembly, hose reel assembly with watering, fertilization and spraying, as well as brake assembly and cutting device assembly; functions of watering, fertilization and spraying are added, with a wide range of use and a wide range of activities Large; the liquid fertilizer used for fertilization contained in the tube of the hose reel is that the water is added with a soluble fertilizer or pesticide in a percentage. The dust bag support 35 of the air blower that is located on the lawn mower is connected with dust bag 36 and has pipeline to connect with the grass collecting box at the lawn mower rear portion. On the mowing blade of the lawnmower chassis, a blowing-suction vane 231 and a broom 232 are provided for direct blow-suction sweeping.

The invention relates to a lawn mower used for mowing lawns in gardens, parks, roads and other places. The anti-collision safety device at the front of the grass machine chassis and the logarithmic helical brake with anti-collision safety and self-stopping, and the low-vibration leaf blower and the installation of dust bag holder, binding mouth and body Add a soft piece to the dust outlet of the shell, add a blade to the blowing impeller, add insurance and double switches to the circuit, and add sound-absorbing and vibration-reducing materials and honeycombs inside and outside the blowing and suction machine, change the roller to steerable, and change the single-extruded cylinder to On the basis of multi-functional lawn mowers with multi-extrusion tubes or flexible folding tubes, integrated blowing and suction and mowing heads, and hose reels with liquid pipelines for watering, fertilizing and spraying, an improved automatic lawn mower is provided. The charging pin is inserted into and pulled out of the smart lawn mower of the contact piece assembly, so that it can be plugged and unplugged reliably; just like a car needs a gas station, an electric lawn mower also needs a charging station, and the market needs an automatic charging pin. A smart lawn mower with a charging component of the contact piece, so that it can be reliably and automatically plugged in and charged; so an improved smart lawn mower with automatic charging pin insertion and extraction of the contact piece assembly has emerged at the historic moment, solving the battery problem. The problem of being not durable and requiring frequent manual charging; an improved intelligent lawn mower with automatic charging pin insertion and extraction of the contact piece assembly is characterized in that it contains an improved automatic charging pin insertion and extraction of the contact piece assembly; said The assembly with automatic charging pin insertion and pull-out contact pieces, which includes a fixed power supply part with automatic charging pin insertion parts, and a movable power receiving part with pull-out contact pieces of the lawn mower body; The fixed power supply part of the automatic charging pin insertion part is provided with a bottom plate laid horizontally on the ground, a front wall standing in front, a power supply, and anchor screws. There are guide rails (233c) symmetrical along the central axis so as to guide the left and right sides of the fuselage at the front of the mower symmetrically along the central axis; The curve section of each guide rail (233c) that is provided with on the right side symmetrically along the central axis is a cubic curve, so as to reduce impact; , so as to fix; the front part of the bottom plate laid horizontally on the ground is provided with the front wall standing in front; the front wall standing in front is provided with left and right sides symmetrical along the central axis. One, the charging pin ((233), the root of the charging pin ((233) is provided with a pin ball (233a), so as to follow up in a small amount, the root of the charging pin ((233) is provided with a screw thread , so as to be connected with the power supply; the head of the charging pin ((233) is provided with an insertion surface (233b), so that the charging pin can be inserted into and pulled out of the contact piece; the bottom plate laid horizontally on the ground is along the central axis Laying and drawing out and laying the guide wire of the electromagnetic pulse along the ground surface in the working area, so that the sensor (234d) under the front of the lawn mower can be intelligently guided by the circuit board to walk to the automatic charging pin when the lawn mower is to be charged. Insert part of the fixed The power supply part is provided with a base plate laid horizontally on the ground surface; the movable power receiving part containing the pull-out contact piece is arranged at the front of the lawn mower, and the movable power receiving part containing the pull-out contact piece includes The sensor (234d) under the front part of the lawn mower and the contact piece (234) and the pressure piece torsion spring (234a) and the rotating shaft that are located at the front part of the lawn mower; the contact piece (234) and the pressure piece torsion spring Spring (234a) and rotating shaft respectively have four, and each described contact piece (234) and pressing piece torsion spring (234a) and rotating shaft form a dodge door, and described each described contacting piece (234) and pressing piece A movable door formed by a torsion spring (234a) and a rotating shaft and another movable door formed by each of the contact piece (234) and a pressure piece torsion spring (234a) and a rotating shaft form a double door facing each other. The contact surfaces ((234b)) of each of the contact pieces (234) facing the dodge doors of the double doors on the side and the right side correspond to the edges along the front wall standing in the front. The insertion surface (233b) provided on the head of the charging pin ((233)) on the left and right sides symmetrical to the central axis is inserted slightly by the charging pin by the pin ball (233a) ; When it is charged to the set value, it will start the lawn mower back, so that the charging pin is pulled out of the contact piece, and then work; when charging again, the lawn mower walks to the fixed power supply part of the automatic charging pin insertion part Lay horizontally on the ground floor and be inserted by the charging pin.

The improved intelligent lawn mower with automatic charging pin insertion and extraction of the contact piece assembly, which is continuously improved and perfected, is characterized in that the left and right sides of the bottom plate laid horizontally on the ground are respectively provided with symmetrical mowers along the central axis. The curved sections of the guide rails (233c) are bell-shaped mutually so as to cooperate with the auxiliary guide rods (234e) on the front side of the mower.

The improved intelligent lawn mower with automatic charging pin insertion and extraction of the contact piece assembly, which is continuously improved and perfected, is characterized in that the left and right sides of the bottom plate laid horizontally on the ground are respectively provided with symmetrical mowers along the central axis. The curve section of each guide rail of the guide rail (233c) is a cubic curve, so as to match with the auxiliary guide bar (234e) on the front side of the mower and reduce the impact.

The improved intelligent lawn mower with automatic charging pin insertion and extraction of the contact piece assembly, which is continuously improved and perfected, is characterized in that the four feet of the bottom plate laid horizontally on the ground are provided with the anchor screws that expand screw.

Continuously improved and perfected smart lawnmower with automatic charging pin insertion and extraction of contact piece assembly, characterized in that the pin ball (233a) provided at the root of the charging pin ((233) is in A cross pin is provided on the spherical seat for micro-following.

The improved intelligent lawn mower with automatic charging pin insertion and extraction of the contact piece assembly, which is continuously improved and perfected, is characterized in that the root of the charging pin ((233) is provided with two nuts on the screw thread, so as to Anti-loosening.

The improved intelligent lawn mower with automatic charging pin insertion and extraction of the contact piece assembly, which is continuously improved and perfected, is characterized in that the pin ball (233a) provided at the root of the charging pin ((233) is inserted into the Thick rubber pads for micro-movement and impact resistance.

The improved smart lawn mower with automatic charging pin insertion and extraction of the contact piece assembly, which is continuously improved and perfected, is characterized in that the insertion surface (233b) provided on the head of the charging pin ((233) is wedge shaped.

The improved intelligent lawn mower with automatic charging pin insertion and extraction of the contact piece assembly, which is continuously improved and perfected, is characterized in that there are two dense-coil torsion springs of the pressure piece torsion spring (234a).

The improved intelligent lawn mower with automatic charging pin insertion and extraction of the contact piece assembly, which is continuously improved and perfected, is characterized in that a section of the curve of the contact surface ((234b) of the contact piece (234) is a logarithmic spiral Because the logarithmic spiral, that is, the equiangular spiral, has the characteristic that the pressure angle is equal everywhere, it is beneficial to contact insertion.

Benefits: the improved intelligent lawn mower with automatic charging pin insertion and extraction of the contact piece assembly can be automatically plugged and unplugged for charging; it is characterized in that the pin ball (233a) provided at the root of the charging pin ((233) , it is equipped with a cross pin on the spherical seat, which solves the problem of reliable plug-in and plug-in charging. Just like a car needs a gas station, an electric lawn mower also needs a charging station. The market needs an intelligent mower with automatic charging pin plug-in The lawn machine solves the problem that the battery is not durable and needs frequent manual charging; the left and right sides of the bottom plate laid horizontally on the ground are respectively provided with the curved section of each guide rail (233c) symmetrical along the central axis It is a cubic curve, so as to reduce the impact; a section of curve of the contact surface ((234b) of the contact piece (234) is a logarithmic spiral, because the logarithmic spiral, that is, the equiangular spiral, has the characteristics that the pressure angle is equal everywhere, It is beneficial to contact and insert. The contact piece (234) and the pressure piece torsion spring (234a) and the rotating shaft each have four, forming double doors facing each other, and the left and right sides respectively have the dodge doors of the double doors The contact surface ((234b)) of each of the contact pieces (234) facing each other corresponds to the left and right sides symmetrically arranged on the front wall standing in the front. The described inserting surface (233b) that the head of charging pin ((233) is provided with, so that charging pin inserts, can start lawn mower back and go mowing when charging to setting value; When charging again When the lawn mower walks on the base plate, it reciprocates. The guide rail uses a cubic curve and the contact surface uses a logarithmic spiral, which is technological progress.

Continuous improvement and improvement, based on the improved intelligent lawn mower with automatic charging pin insertion and extraction of contact piece components, an intelligent lawn mower with front universal wheels and half-side guide grooves to expand the mowing area has been developed. Including an improved contact piece assembly with automatic charging pin insertion and extraction; said automatic charging pin insertion and extraction contact piece assembly includes a fixed power supply component with automatic charging pin insertion parts, and also includes a lawn mower The movable power receiving part with the pull-out contact piece; the fixed power supply part with the automatic charging pin insertion part is provided with a bottom plate laid horizontally on the ground surface, a front wall standing in front, a power supply, and anchor screws The single side of the base plate laid horizontally on the ground surface is provided with a guide rail (233c) symmetrical along the forward line of the single-sided front universal wheel, so that the front of the fuselage of the lawn mower can Guide to the left and right of the advance line of the wheel; and the curve section of each guide rail (233c) symmetrical along the central axis that is provided on the left and right sides of the bottom plate that is horizontally laid on the ground surface is a cubic curve , in order to reduce the impact; the four feet of the base plate laid horizontally on the ground are provided with the anchor screws for fixing; the front part of the base plate laid horizontally on the ground is provided with the front wall standing in front; The front wall standing in the front is provided with the charging pins ((233) respectively on the left and right side symmetrically along the central axis, and the root of the charging pins ((233) is provided with a pin ball (233a), so as to follow up in a small amount, the root of the charging pin ((233) is provided with a screw thread, so as to be connected with the power supply; the head of the charging pin ((233) is provided with an insertion surface (233b ), so that the charging pin can be inserted into and pulled out of the contact piece; the bottom plate laid horizontally on the ground is laid and drawn out along the central axis, and a guide wire of electromagnetic pulse is laid along the ground surface in the working area, so as to pass through the sensor under the front of the lawn mower (234d) and through the circuit board to intelligently guide the lawn mower to walk to the fixed power supply part of the automatic charging pin insertion part when it is to be charged, the base plate that is horizontally laid on the ground surface is provided; The movable power receiving part is arranged at the front part of the lawn mower, and the movable power receiving part containing the pull-out contact sheet contains the sensor (234d) under the front part of the lawn mower and the sensor (234d) located at the front part of the lawn mower. The contact piece (234) and pressing piece torsion spring (234a) and rotating shaft; There are four respectively of described contact piece (234) and pressing piece torsion spring (234a) and rotating shaft, each described contact piece (234) and pressing Sheet torsion spring (234a) and rotating shaft form a dodge door, and a dodge door that described each described contact piece (234) and pressure piece torsion spring (234a) and rotating shaft form and described each described contact piece ( 234) and pressing plate torsion spring (234a) and another dodge door that rotating shaft forms form face-to-face bifold double door, and the left side and the right side respectively have each described face-to-face of the dodge door of described double door. The contact surface ((234b) of the contact piece (234) corresponds to the described charging pin ((233) on the left side and the right side symmetrically along the central axis provided on the front wall standing in front of the described The insertion surface (233b) provided on the head is inserted by the charging pin by the pin ball (233a) in a small amount; when it is charged to the set value, the lawn mower will be started to retreat, so that the charging pin will be pulled out of the contact piece , and then work; when charging again, the lawnmower walks to the bottom plate of the fixed power supply part of the automatic charging pin insertion part and is laid horizontally on the ground surface and is inserted by the charging pin; The curve section of each guide rail of the symmetrical guide rails (233c) provided on the left side and the right side is a cubic curve, so as to match with the auxiliary guide bar (234e) on the front side of the lawn mower and reduce the impact The four feet of the bottom plate laid horizontally on the ground are provided with expansion screws; the pin ball (233a) provided at the root of the charging pin (233) is on a spherical seat A cross pin is provided for trace movement; the root of the charging pin (233) is provided with two nuts on the thread to prevent loosening; the head of the charging pin (233) is provided with a The insertion surface (233b) is wedge-shaped; there are two dense-circle torsion springs of the described compression piece torsion spring (234a); Spiral, because the logarithmic spiral, that is, the equiangular spiral, has the characteristics that the pressure angle is equal everywhere, which is beneficial to contact insertion; the intelligent lawn mower with the front universal wheel and the half guide groove to cooperate with expanding the mowing area is characterized in that , the pin ball (233a) provided at the root of the charging pin (233) is contained on the concave hemispherical seat and the coaxial pins of the left and right of the described pin ball are respectively located in the U of the left and right. Shaped groove for micro-movement and impact resistance; the smart lawn mower with front universal wheel and half-side guide groove to expand the mowing area is set by the fixed power supply part with the automatic charging pin insertion part. One side of the bottom plate laid horizontally on the ground surface is provided with narrow guide rails (233c) that are symmetrical along the advancing line of the front universal wheels on one side, and the middle groove of the narrow guide rails (233c) Can only accommodate the front universal wheel of the unilateral front wheel of the lawn mower, the left and right width of the narrow guide rail (233c) is less than half of the width of the lawn mower, each of the narrow guide rails (233c) The guide rail is a trumpet shape of a cubic curve section containing a function curve of advanced mathematics, so as to reduce the impact and make the front universal wheel cooperate with the half guide groove and align the front of the lawn mower along the unilateral front universal wheel. The left and right sides of the forward line are guided and the mowing area is enlarged, avoiding the left half of the original wide two guide rails being the missed cutting area or the left half being the wounded knife area or the left half being the wounded guide rail area .

Benefits: an intelligent lawn mower with a front universal wheel and a half-side guide groove to expand the mowing area, the pin ball (233a) provided at the root of the charging pin (233) is mounted on the concave hemispherical seat and The left and right coaxial pins of the pin ball are respectively located in the left and right U-shaped grooves for micro-movement and impact resistance; the front universal wheel cooperates with the half-side guide groove to expand the mowing area The intelligent lawn mower includes the fixed power supply part with the automatic charging pin insertion part, and the single side of the bottom plate laid horizontally on the ground is provided with the forward line of the front universal wheel along the single side. Symmetrical narrow guide rail (233c), the middle groove of described narrow guide rail (233c) can only accommodate the front universal wheel of the unilateral front wheel of lawn mower, the of described narrow guide rail (233c) Left and right width is less than half of the width of lawnmower, and each guide rail of described narrow guide rail (233c) is the bell mouth shape of the cubic curve section that contains the function curve of advanced mathematics, so that buffer shock and make front universal wheel and The half-side guide groove cooperates to guide the front part of the lawn mower along the forward line of the single-side front universal wheel to the left and right and expand the mowing area, avoiding the left-hand gap between the original wide two guide rails. Half is the missed cutting area or the left half is the wounded knife area or the left half is the wounded guide rail area. It solves the problem of reliable plug-in and plug-in charging with micro-volume follow-up. Just like a car needs a gas station, an electric lawn mower also needs a charging station. The market needs a smart lawn mower with automatic charging pin insertion and removal, which solves the problem of frequent manual charging due to undurable batteries; it will start when it is charged to the set value. The lawn mower retreats, so that the charging pin is pulled out of the contact piece to mow the grass; when it is time to charge again, the lawn mower walks on the bottom plate, and reciprocates in this way. Using cubic curves and using logarithmic spirals is a technical advancement.

The highlights are:

An improved intelligent lawn mower with front universal wheels and half-side guide grooves in cooperation with expanding the mowing area, the pin ball (233a) provided at the root of the charging pin (233) is mounted on the concave hemispherical seat and The left and right coaxial pins of the pin ball are respectively located in the left and right U-shaped grooves for micro-movement and impact resistance; one side of the bottom plate laid horizontally on the ground is provided with The forward line of the front universal wheel and the middle groove of the symmetrical narrow guide rail (233c) can only accommodate the front universal wheel, and the left and right width of the narrow guide rail is less than half of the width of the mower, and each guide rail It is the trumpet shape of the cubic curve section containing the function curve of advanced mathematics, so as to reduce the impact and give guidance and expand the mowing area, avoiding the left half of the original wide two guide rails being the missed cut area or left Half of the left side is the wounded knife area or the left half is the wounded guide rail area. It solves the problem of reliable plug-in and plug-in charging with micro-volume follow-up.

Benefits: an intelligent lawn mower with a front universal wheel and a half-side guide groove to expand the mowing area, the pin ball (233a) provided at the root of the charging pin (233) is mounted on the concave hemispherical seat and The left and right coaxial pins of the pin ball are respectively located in the left and right U-shaped grooves for micro-movement and impact resistance; the front universal wheel cooperates with the half-side guide groove to expand the mowing area The intelligent lawn mower includes the fixed power supply part with the automatic charging pin insertion part, and the single side of the bottom plate laid horizontally on the ground is provided with the forward line of the front universal wheel along the single side. Symmetrical narrow guide rail (233c), the middle groove of described narrow guide rail (233c) can only accommodate the front universal wheel of the unilateral front wheel of lawn mower, the of described narrow guide rail (233c) Left and right width is less than half of the width of lawnmower, and each guide rail of described narrow guide rail (233c) is the bell mouth shape of the cubic curve section that contains the function curve of advanced mathematics, so that buffer shock and make front universal wheel and The half-side guide groove cooperates to guide the front part of the lawn mower along the forward line of the single-side front universal wheel to the left and right and expand the mowing area, avoiding the left-hand gap between the original wide two guide rails. Half is the missed cutting area or the left half is the wounded knife area or the left half is the wounded guide rail area. It solves the problem of reliable plug-in and plug-in charging with micro-volume follow-up. Just like a car needs a gas station, an electric lawn mower also needs a charging station. The market needs a smart lawn mower with automatic charging pin insertion and removal, which solves the problem of frequent manual charging due to undurable batteries; it will start when it is charged to the set value. The lawn mower retreats, so that the charging pin is pulled out of the contact piece to mow the grass; when the lawn mower needs to be charged again, the lawn mower walks on the bottom plate, and reciprocates in this way; the use of cubic curves and logarithmic spirals is technological progress.

Continuously improved and perfected intelligent garden machine with collaborative visual information perception and multiple formation charging methods, characterized in that the bottom plate of the fixed power supply part with automatic charging pin insertion parts is connected The mowing border is paved on the surface with electromagnetic pulse guide wire traps, and multiple lawn mowers are placed in the ground-surface guide wire traps with electromagnetic pulses along the border of the mowing work area. Each of the lawn mowers described above is provided with a compass compass so as to maintain order in the vertical and horizontal directions during operation; Visual information senses the communication remote control of multiple sequential formation charging, and the intelligent garden working machine is equipped with a detection head of induction wire electromagnetic field, multiple cameras, lasers and ultrasonic rangefinder perception, and the Beidou positioning through the Internet to remotely control the order of each garden working machine to charge; the working machine includes an intelligent charging management circuit, and adopts different charging strategies according to the actual power status of the battery pack to ensure the system works;

When the voltage of a single cell of the battery is lower than 2.7V/CELL, due to the large operating current of the system, the remaining power of the cell is not enough to maintain the normal operation of the system.

At this time, the voltage of the charging base station is directly used to supply power to the system and charge the battery. The specific working principle is as follows:

Please refer to Figure 94 for a schematic diagram of the charging management circuit of the intelligent garden working machine:

When the machine is connected to the charging station, the system detects the battery voltage. If the voltage is lower than 2.7V/CELL, at this time,

The BD_EN and BT_ctr control signals sent by the MCU are both low level, the TF14 MOS is turned on, and the charging base station supplies power to the system.

At the same time, the TF10 MOS is cut off to prevent the battery from supplying power to the system and avoid excessive discharge of the battery. The circuit work of each part is as follows:

Battery voltage detection circuit:

When the system is working, the AD input pin of the MCU detects the divided voltage of the resistors R142, R146, and R147, calculates the voltage value of the battery after sampling, and compares it with the charging threshold set by the software to control the charging method;

The voltage sampled by the MCU: V=(R146//R147)*(R142+R146//R147)*Vbattery

Among them, the function of TF15 MOS tube is as follows:

When the system is in the normal power supply state, the G pole of the MOS supplies power to the G pole through the 12V voltage, and the G pole voltage is:

VG-S＝R127/(R126+R127)*12V

This voltage ensures that the TF15 tube is reliably turned on, and the battery voltage sampling circuit works. When the system is powered off, the TF15 will be cut off because the G and S terminal voltages are zero, and the battery voltage sampling circuit will be disconnected, preventing the battery from discharging through this circuit and reducing the power of the machine. Power consumption when not in use;

When the machine is connected to the charging base station when the system is powered off, because the BT_ctr signal of the MCU is at a low level, the transistor Q28 is cut off, and the voltage of the B-E terminal of the transistor Q27 is:

VB-E=VCIN+*R212/(R210+R212),

This voltage value is greater than the turn-on threshold voltage of the triode, and the transistor Q27 is turned on. At this time, the G-S terminal voltage of the TF14 MOS tube is:

VG-S＝VCIN*(1-R211/(R209+R211))

TF14 is therefore turned on, the base station voltage VCIN+ supplies power to the system through TF14, the system automatically starts up, and checks whether it meets the charging conditions; during charging, when the MCU detects that the charging voltage is greater than 2.7V/CELL, the control signals BT_ctr and BD_EN are switched from low to low. The level is switched to high level, and the charging state is switched as described below:

When the BT_ctr signal is switched from low level to high level, the transistor Q28 is switched from the cut-off state to the conduction state, causing the base voltage of the transistor Q27 to drop to zero voltage and cut off, and TF14 is cut off accordingly.

The power supply channel of the base station to the system is disconnected,

When the BT_ctr signal is switched from low level to high level, the BD_EN signal is also switched from low level to high level, the transistor Q16 is switched from the off state to the on state, and the voltage drop across the resistor R138 is greater than the G-S conduction of TF10 When the voltage is turned on, the TF10 MOS is turned on. At this time, while the power supply channel of the base station is disconnected, the battery supplies power to the system.

The role of D23A diode:

In other working states of the system, in addition to the state of charging, in order to prevent the battery voltage from being added to the CIN+ signal terminal through the body diode of TF14, so that the system judges that it is in the charging state and misoperates, a blocking diode is added;

The role of D23 diode:

In the charging state, prevent the charging voltage from charging the battery through the body diode of TF10;

Please refer to the schematic diagram of the charging voltage detection circuit of the intelligent garden working machine in Figure 95:

This system adopts an intelligent charging management system, multiple charging data detection and data measurement during charging, and provides multiple protection functions to ensure charging safety;

The MCU determines the size of the charging by detecting the battery voltage, and decides when to terminate the charging according to the set charging cut-off voltage and current value, so as to ensure the safety of charging and improve the service life of the battery.

The MCU controls the magnitude of the charging current by controlling the level status of the ChrgEn1 and ChrgEN2 signals.

When the MCU detects that the battery voltage is lower than 2.7V/CELL, it uses a small current to charge the battery. At this time, the ChrgEn1 signal is at a low level, and at the same time, the ChrgEN2 signal is at a high level, and the transistor Q20 is turned on, and the transistor Q19 is then turned on. On, the base station voltage charges the battery through resistors R164, R164A, R164B, and Q19.

The functions of resistors R164, R164A, and R164B are as follows:

Acts as a current limiter, the charging current is:

IChrg＝(VCIN+-Vbattery)/(R164+R164A+R164B)

Avoid low battery voltage, lowering the voltage of the base station, causing the system to fail to work normally;

When the MCU detects that the battery voltage is higher than 2.7V/CELL, a large current is used to charge the battery. At this time, the ChrgEn1 signal is switched to a high level, and at the same time, the ChrgEN2 signal is switched to a low level, the transistor Q21 is turned on, and the MOS tube TF12 is then turned on, and the base station voltage charges the battery through the resistor TF12 MOS tube. The charging current is determined by the current of the base station charger.

R176 and R181 are current sampling resistors. When the voltage generated by the charging current flowing through this resistor is greater than the charging threshold voltage set by the MCU, the MCU considers the charging overcurrent and stops charging immediately;

Charging cut-off conditions:

When the total voltage of the battery is greater than 4.15V/CELL, or the charging current is less than 200mA, stop charging to avoid overcharging of the battery;

Please refer to the schematic diagram of the power supply voltage circuit of the intelligent garden working machine system in Figure 96:

System power supply circuit:

The power supply design of this system adopts the combination of switching power supply and linear regulated power supply to provide the 12V, 5V and 3.3V voltage required by the system. The specific work is described as follows:

The battery voltage or base station power supply voltage is applied to the input pin 1 of the switching power conversion chip. When the switch control pin 5 is at low level, the MOS tube connected between pin 1 and pin 2 inside the control chip is in the switching state, and the MOS The conduction time of the tube in each switching cycle depends on the error value between the feedback voltage of the output voltage fed back to the pin 4 terminal and the built-in reference voltage,

In the on-state of the chip’s built-in MOS, the input voltage provides energy to the output +12V through the inductor L1, and the inductor L1 and capacitor C64 also store electrical energy during this period.

When the MOS is turned off, the electric energy stored in the inductor L1 in the last conduction cycle will be released to supply power to the load. The diode D21 provides a current loop to the inductor L1. When the energy on L1 decreases, C64 provides additional voltage to maintain The output voltage +12V remains unchanged;

The working principle of the built-in switching tube is as follows:

When the load increases, the output voltage decreases, and the voltage of the feedback pin 4 decreases accordingly, and the error value with the reference voltage inside the chip increases. As a result, the conduction time of the built-in MOS is lengthened, and more power increases the output. terminal, so that the output voltage is close to the set voltage and maintain the output voltage stability;

Similarly, when the output load decreases, the output voltage rises, so the error between the feedback voltage and the reference voltage decreases, resulting in a decrease in the conduction time of the built-in MOS switch, reducing the power supplied by the power supply terminal to the load terminal, and causing the output to fall back to the set value. Fixed voltage value, above due to the change of the load, the error value between the output voltage and the set voltage value is caused, so that the output voltage maintains a stable value of dynamic balance. Because the switching power supply works in the switching state, the input voltage is directly converted to the required value of the system. The voltage can cancel the energy consumption of the input and output voltage difference of the linear power supply. Therefore, it has high efficiency, and at the same time, the system generates less heat, which improves the reliability of the system.

U18 and U16 are three-terminal voltage regulators, which provide the 5V and 3.3V working voltage required by the system;

Motor control part principle:

The control schematic diagram is as follows:

Please refer to the schematic diagram of the motor control circuit of the intelligent garden working machine in Figure 97:

The DC brushless motor control part of the system purchases an integrated chip control scheme. The chip has a built-in rotor position decoder to monitor three motor position sensors to provide the correct timing of the upper and lower power MOS drives. It has a full-wave six-step drive function. The three-phase drive device is an integrated MOS tube,

The upper power switch is a PMOS tube, and the lower power switch is an NMOS tube;

The integrated chip has an over-current protection function. The R118 resistor is the motor current sampling resistor. The current sampling signal is divided by R117 and R119 and sent to the current sampling terminal of the chip. When the current sampling signal value is greater than 0.1V, the over-current protection function is activated and the motor stops. Turning, the overcurrent protection set point is:

Icurrent＝0.1*(R117+R119)/(R118*R119)

When an overcurrent event occurs, the output of the Fault Output pin of the driver chip is low level, the motor drive signal OutputEnable signal is pulled low, and the motor stops running to avoid damage to electronic devices due to excessive load current of the machine. When the Fault Output is low When the level is high, the B-E terminal voltage of the transistor Q24 also drops to zero, switching from the on state to the off state, and the BLADE_FAULT signal is at a high level. When the MCU receives the BLADE_FAULT high level, it immediately stops all motors;

The MCU is also equipped with a secondary software overcurrent protection function, so that it can flexibly handle the operation of the machine under different load conditions and avoid frequent shutdowns of the machine.

The software overcurrent protection function can be described as follows:

The motor current sampling signal BLADE_P8 is amplified 7.8 times by the operational amplifier, and the amplified sampling current analog signal BLADE_CRT signal is sent to the MCU pin with analog-to-digital conversion function. After being processed by the built-in analog-to-digital conversion unit, the analog current The signal is converted into a 12-bit digital current signal, and this signal is compared with the overcurrent threshold signal set by the MCU. When the current signal value is greater than the overcurrent threshold, the corresponding operation during overcurrent is executed.

The left and right travel motors have the same overcurrent protection function;

Current operational amplifier circuit:

Please refer to the schematic diagram of the current operational amplifier circuit of the intelligent garden working machine in Figure 98:

Current magnification counting formula:

A＝1+(R7/R14)*Icurrent

When abnormal conditions occur during the operation of the motor, such as machine collision, machine lifting, and machine overturning, the sensors that occur in these events will feed back relevant signals to the MCU, and the MCU will immediately perform the braking function;

The specific action process is as follows:

When the position of the Hall sensor detecting the above events is biased, the Hall signal is switched from high level to low level, and after the MCU pin detects the level change, the BLADE_BRK signal sent is switched from high level to low level , after the following inverting circuit processing, a high-level signal of BLADE_P4 is generated to the motor driver chip U13 to perform the motor braking function, and the left and right travel motors have the same function;

For the above, please refer to the above intelligent lawn mower brake circuit in Figure 99, which is a schematic diagram of the intelligent garden working machine brake and reverse operation circuit;

The driver chip also has the function of making the motor rotate forward/reversely. When a collision event occurs during the operation of the machine, the machine will perform the backward function. The specific action is described as follows:

When the Hall sensor sends the collision signal to the MCU, the MCU switches the BLADE_DIR signal that controls the motor running direction from low level to high level. After processing by the following inverting circuit, a low level BLADE_P7 signal is generated for the motor drive. Chip U13, the motor switches from forward to reverse, the machine performs a backward movement, and the left and right travel motors have the same function;

For the above, please refer to the following figure of the intelligent lawn mower reverse circuit of the schematic diagram of the brake and reverse operation circuit of the intelligent garden working machine in Figure 99;

Please refer to the schematic diagram of the motor speed control circuit of the intelligent garden working machine in Figure 100:

Motor speed control principle:

Under different working conditions of the machine, the running speed of the motor is different, so the running speed signal of the motor needs to be fed back to the motor drive core U13. This system design uses a dedicated motor speed detection chip to generate the feedback voltage required for motor speed control. , without the need for an expensive tachometer, U12, to achieve this function,

The specific working principle is as follows:

The positive or negative transition of the output signal of the Hall sensor used by the motor driver chip U13 for electronic rotor position decoding can make U12 generate a pulse with an amplitude and duration whose parameters are determined by the external resistors R101 and C48. The output pulse at pin 5 of U13 is integrated by the error amplifier of U13 to produce a DC level that is proportional to the speed of the motor. This speed feedback voltage establishes the PWM reference level at pin 13 of U13 and closes into The feedback loop outputs the control signal for driving the MOS. At the same time, the PWM reference voltage at pin 13 of U13 is fed back to the MCU pin with analog-to-digital conversion function, so that the MCU can know the actual running speed of the motor, and according to the actual running speed value The difference from the set value to adjust the control voltage,

The related circuits are described as follows:

RMOT_DAC is the target speed control voltage value output by the MCU. After being amplified by the operational amplifier (magnification factor = 1+R5/R12), it is sent to the pin 11 of the right travel motor driver chip to guide the difference between the target speed voltage and the actual speed voltage. After the value is amplified by the error amplifier inside the chip, the above-mentioned reference voltage signal RMOT_P6 regulated by PWM is output at pin 13.

Benefits:

An intelligent garden machine with collaborative visual information perception of multiple sequential formation charging methods, a fixed power supply component with automatic charging pins inserted into the bottom plate of the component is connected to a photovoltaic power generation charging pile and a guide road with electromagnetic pulses laid on the ground along the mowing border The wire siege circle is provided with a compass compass on the multiple garden machines placed in the guide wire siege circle with electromagnetic pulses laid on the ground along the border of the mowing work area so as to press the vertical and horizontal directions during operation; Collaborate with visual information to sense the communication remote control of multiple sequential formation charging, equipped with a detection head that senses the electromagnetic field of the wire, multiple cameras, lasers and ultrasonic range finders, and remotely controls the order of each garden working machine to charge through the Beidou positioning of the Internet; The intelligent charging management circuit is adopted, and different charging strategies are adopted according to the actual power status of the battery pack to ensure the operation of the system; the photovoltaic power generation charging pile has an energy-saving effect.

Claims (1)

1. tool collaboration visual information perceives the intelligent gardens machine of more sequentially formation charging methods, contain improved tool automatic charging Pin insertion and extraction contact chip component；The tool automatic charging pin insertion and extraction contact chip component, the automatic charging containing tool The fixed power supply part of insertion part is sold, the tool of the also fuselage containing grass trimmer extracts the electric component of the activity of contact chip；It is described Have automatic charging pin insertion part fixed power supply part, equipped be horizontally arranged in the bottom plate of earth's surface, stand on front front wall, supply Power supply, fot screw, the unilateral side of the bottom plate for being horizontally arranged in earth's surface be equipped with along the preceding inlet wire of unilateral preceding universal wheel and it is symmetrical Guided way (233c), to be oriented to left and right of the fore-body of grass trimmer along the preceding inlet wire of unilateral preceding universal wheel； And the bottom plate for being horizontally arranged in earth's surface left side and right side it is each be equipped with along the every of the symmetrical guided way of axis (233c) The curved section of a guided way is a cube curve, to slow down impact；Four feet of the bottom plate for being horizontally arranged in earth's surface are equipped with described Fot screw, to fix；The forepart of the bottom plate for being horizontally arranged in earth's surface is equipped with the front wall for standing on front；Described Equipped with the charging pin along the symmetrical left side of axis and right side each one, ((233), described fills front wall in front of standing on Electricity pin (root of (233) is equipped with pin ball (233a), is servo-actuated so as to micro, the charging pin (root of (233) is equipped with screw thread, To be connected with the power supply source；(head of (233) is equipped with inserting surface (233b) to the charging pin, so as to pin insertion of charging And extract contact chip；The bottom plate for being horizontally arranged in earth's surface is laid with along central axes and draws and be equipped in working region along earth's surface The conducting wire of leading the way of electromagnetic pulse is cut with will pass through the sensor of grass trimmer lower front (234d) and pass through circuit board intelligently guiding Being equipped with for fixed power supply part of walking to the tool automatic charging pin insertion part is horizontally arranged in earth's surface during careless confidential charging Bottom plate on；The electric component of the activity that contact chip is extracted containing tool is located at grass trimmer forepart, described to extract contact chip containing tool Activity sensor (234d) of the electric component containing the grass trimmer lower front and be located at the contact chip of grass trimmer forepart (234) and tabletting torsional spring (234a) and shaft；The contact chip (234) and tabletting torsional spring (234a) and shaft is each shares four A, each described contact chip (234) and tabletting torsional spring (234a) and shaft form a dodge gate, and each described institute State a dodge gate of contact chip (234) and tabletting torsional spring (234a) and shaft composition and each described described contact chip (234) and another dodge gate of tabletting torsional spring (234a) and shaft composition formed it is aspectant split two-door, left side and Respectively there is contact surface ((234b) correspondence of aspectant each contact chip (234) of the two-door dodge gate on right side The charging pin along the symmetrical left side of axis and right side each one that the front wall for standing on front is equipped with (the inserting surface (233b) that the head of (233) is equipped with, by the pin that charges by the micro servo-actuated insertion of pin ball (233a)；When filling It is retreated to grass trimmer can be started during setting value, charging pin is made to extract contact chip, is then worked；When charging again, grass trimmer is walked Being horizontally arranged on the bottom plate of earth's surface and being inserted by the pin that charges to the fixed power supply part for having automatic charging pin insertion part Enter；The left side and right side of the bottom plate for being horizontally arranged in earth's surface are each be equipped with along the every of the symmetrical guided way of axis (233c) The curved section of a guided way is a cube curve, to match and impact-reducing with the auxiliary guide rod (234e) of grass trimmer front side edge； The fot screw that four feet of the bottom plate for being horizontally arranged in earth's surface are equipped with is swell fixture；The pin (233) that charges The pin ball (233a) that root is equipped with is that cross pin is equipped on spheric seat, so as to micro servo-actuated；The charging pin (dress is there are two nut on the screw thread that the root of (233) is equipped with, with anti-loosening；What the head of the charging pin (233) was equipped with Inserting surface (233b) is wedge；There are two the close circle torsional springs of the tabletting torsional spring (234a)；The contact chip (234) (one section of curve of (234b) is logatithmic spiral to contact surface, because logatithmic spiral, that is, equiangular spiral has pressure angle equal spy everywhere Property, it is inserted into beneficial to contact；Described tool collaboration visual information perceives the intelligent gardens machine of more sequentially formation charging methods, institute (the pin ball (233a) that the root of (233) is equipped with is on recessed half ball seat and the pin ball for the charging pin being equipped with The pin of the coaxial line of left and right each one is respectively seated in each one U-lag around, so that fine motion is servo-actuated and impact resistance；It is sent out with photovoltaic Electricity and charging pile enclose consolidating for its tool automatic charging pin insertion part contained of intelligent gardens working machine for charging in boundary on lawn The unilateral side for the bottom plate for being horizontally arranged in earth's surface that fixed power supply part is equipped with is equipped with the preceding inlet wire along unilateral preceding universal wheel And symmetrical narrow guided way (233c), the intermediate groove of the narrow guided way (233c) be only capable of accommodating grass trimmer it is unilateral before The preceding universal wheel of wheel, the left and right width of the narrow guided way (233c) are less than the half of the width of grass trimmer, and described narrow leads Each guided way to rail (233c) is the toroidal of cube curved section of the function curve containing higher mathematics, to slow down punching Hit and before making universal wheel with half of guide groove cooperation and to the fore-body of grass trimmer along the preceding inlet wire of unilateral preceding universal wheel Left and right is oriented to and expands mowing area, avoid between original two wide guided ways have the half to keep left be Lou Ge areas or The half to keep left is Shang Dao areas or the half to keep left is to hinder guide rail area；Tool collaboration visual information perceives more charging sides of sequentially forming into columns The intelligent gardens machine of method, which is characterized in that connect on the bottom plate of the fixed power supply part of the tool automatic charging pin insertion part Then photovoltaic generation charging pile and along mowing border be laid on earth's surface have electromagnetic pulse lead the way conducting wire besiege circle, cut on the edge The conducting wire of leading the way for having electromagnetic pulse for being laid on earth's surface in careless working region border, which is besieged in circle, puts more hay mowers, institute The every hay mower stated is equipped with compass compass to form a line in operation by direction in length and breadth come volume of keeping order；Institute Between the fixed power supply part and hay mower of stating tool automatic charging pin insertion part, perceived using tool collaboration visual information The remote of more chargings of sequentially forming into columns, intelligent gardens working machine are equipped with the detecting head of sensor wire electromagnetic field and multiple take the photograph Camera and laser and supersonic sounding device perceive and by the Big Dipper of internet position to be remotely controlled each gardens working machine order come It charges；The working machine takes different fill containing intelligentized charge management circuit is taken according to the actual battery condition of battery pack Electric strategy ensures system work；When the single-unit battery core voltage of battery is less than 2.7V/CELL, since system operating current is larger, electricity Core remaining capacity is not enough to maintain system worked well, at this time directly by the voltage of charging base station to system power supply and to battery It charges, concrete operating principle is as follows：System detectio cell voltage during charging station when machine is linked into, if voltage is less than 2.7V/CELL, at this point, BD_EN, BT_ctr control signal that MCU is sent all are low level, TF14 MOS conductings, charging base station To system power supply, meanwhile, TF10 MOS cut-offs prevent battery from avoiding battery over-discharge, each several part circuit work to system power supply Make as follows：Battery voltage detection circuit：When system works, point of AD input pin detection resistances R142, R146, R147 of MCU Piezoelectricity pressure calculates the voltage value of battery through over-sampling, and compared with the charge threshold that software is set, to control charging modes；

The voltage that microcontroller micro control unit chip MCU is sampled：

V=(R146//R147) * (R142+R146//R147) * Vbattery

The effect of wherein TF15 metal-oxide-semiconductor field effect transistors is as follows：

When system is under normal power supply state, the G poles of MOS are powered by 12V voltages to G poles, and G pole tensions are：

VG-S=R127/ (R126+R127) * 12V

This voltage ensures the reliable conducting of TF15 pipes, and battery voltage sampling circuit work, when system cut-off, TF15 is because of G, S end electricity Pressure is ended for zero, and battery voltage sampling circuit disconnects, and prevents battery by this circuit discharging, reduce machine without using feelings Electric quantity consumption under condition,

When machine is linked into charging base station in the case of system cut-off, at this time because the BT_ctr signals of MCU are low level, three poles Pipe Q28 ends, and the voltage at the B-E ends of triode Q27 is：

VB-E=VCIN+*R212/ (R210+R212),

This voltage value is more than the on state threshold voltage of triode, and triode Q27 is turned on, at this time the G-S terminal voltages of TF14 metal-oxide-semiconductors For：

VG-S=VCIN* (1-R211/ (R209+R211))

Therefore TF14 is turned on, base station voltage VCIN+, to system power supply, system Auto Power On, and detects whether to meet by TF14 Charge condition；In charging process, when charging voltage is more than 2.7V/CELL when MCU is detected, control signal BT_ctr, BD_EN High level is switched to by low level, charged state switches as described below：

When being switched to high level by low level because of BT_ctr signals, triode Q28 causes three by cut-off state switched conductive state The base voltage of pole pipe Q27 is reduced to no-voltage and ends, and TF14 ends therewith,

Base station is disconnected to system power supply passage,

While BT_ctr signals are switched to high level by low level, BD_EN signals are also switched to high level by low level, and three Pole pipe Q16 is switched to conducting state by cut-off state, and the voltage drop at R138 resistance both ends is more than the G-S conducting voltages of TF10, TF10 MOS are turned on therewith, at this point, while base station supplying channels disconnect, by battery to system power supply,

The effect of D23A diodes：In the other working conditions of system, the state in addition to charging, to prevent cell voltage from passing through The body diode of TF14 is added to CIN+ signal ends, and system is made to be judged as, into charged state and maloperation, adding a blocking diode；

The effect of D23 diodes：In charged state, charging voltage is prevented to charge the battery by the body diode of TF10；

The system uses intelligentized charging management system, and the DATA REASONING in multiple charge data detections and charging process carries For multiple protection functions, to ensure the safety that charges；

Size that chip MCU is charged by the way that cell voltage is detected to determine and according to the charge cutoff voltage of setting and the value of electric current, When decision terminates charging, to ensure the service life of charging safety and raising battery,

MCU controls the size of charging current by controlling the level condition of ChrgEn1, ChrgEN2 signal,

It when cell voltage is less than 2.7V/CELL when MCU is detected, is charged the battery using low current, at this point, ChrgEn1 believes Number for low level, meanwhile, ChrgEN2 signals are high level, triode Q20 conductings, and triode Q19 is turned on therewith, base station voltage It is charged the battery by resistance R164, R164A, R164B, Q19,

The effect of resistance R164, R164A, R164B are as follows：

Metering function is played, charging current is：

IChrg=(VCIN+-Vbattery)/(R164+R164A+R164B)

It avoids cell voltage too low, by base station voltage pull-down, causes system cisco unity malfunction；

It when cell voltage is higher than 2.7V/CELL when MCU is detected, is charged the battery using high current, at this point, ChrgEn1 believes Number high level is switched to, meanwhile, ChrgEN2 signals are switched to low level, triode Q21 conductings, and metal-oxide-semiconductor TF12 is turned on therewith, Base station voltage is charged the battery by resistance TF12 metal-oxide-semiconductors, and charging current is determined by base station charger current size,

R176, R181 are current sampling resistor, when the voltage that charging current flows through the generation of this resistance is more than MCU setting charge thresholds During voltage, MCU thinks charging overcurrent, stops charging immediately；

Charge cutoff condition：

When battery stagnation pressure is more than 4.15V/CELL or charging current is less than 200mA, stops charging, battery is avoided to overcharge；

System power supply circuit：

The system power-supply service provided by the way of Switching Power Supply and linear stabilized power supply combination 12V, 5V needed for system, 3.3V voltages, specific works are described as follows：

Cell voltage or base station supply voltage are added in the input pin 1 of Switching Power Supply conversion chip, when switch control pin 5 is low During level, the metal-oxide-semiconductor between control chip internal connection pin 1 and pin 2 is on off state, and metal-oxide-semiconductor is switched at each The ON time in cycle depends on output voltage and feeds back to the big of the feedback voltage at 4 end of pin and the error amount of built-in reference voltage It is small,

MOS conducting states are put in the chip, and input voltage provides energy, while inductance L1 and electricity by inductance L1 to output+12V Hold C64 during this period also can storing up electricity energy,

When MOS is disconnected, can be released in electric energy of the upper turn-on cycle memory storage on inductance L1, powering load, Diode D21 provides current loop to inductance L1, when energy reduces on L1, C64 supplement offer voltages, maintenance output voltage+ 12V is constant.