CN104876296A - Bubbling machine capable of automatically interrupting after falling down - Google Patents

Abstract

The present invention relates to bubblers. A fall-off self-cutting type bubbler, including a pump casing, a power lead-in wire and a motor, the power wire is connected with an anti-fall switch fixed on the casing, and the anti-fall switch includes a body fixed to the casing, a weight and two wiring pins , there is an assembly cavity inside the shell, and the assembly cavity is equipped with a swing arm, a power-off spring, a conductive sheet, a barb hooked on the swing arm, a barb return spring and a barb magnet, and the barb and the swing arm are the same The shells are hinged together, and there is a heavy ball guide cavity in the swing arm. The heavy ball is connected in the heavy ball guide cavity in a way that can only slide along the extension direction of the heavy ball guide cavity. When the heavy ball is pressed on the conductive sheet, the conductive sheet can overcome The elastic force of the power-off spring is pressed on the two terminal pins, the heavy ball is provided with a heavy ball magnet, and the magnetic poles of the same polarity of the barb magnet and the heavy ball magnet are opposite to each other. The invention has the advantage of being able to stop automatically after falling down, and solves the problem that the existing bubbler cannot stop automatically after falling down.

Description

Fall down self-cutting power-shaped bubbling machine

technical field

The invention relates to a bubbling machine, in particular to a bubbling machine with a fall-off self-power-off type.

Background technique

The bubbler is a mechanism for generating air bubbles, which will be used in the photocatalytic treatment system of industrial wastewater. In the Chinese Patent No. 2014203265601, the publication date is October 15, 2014, and the patent document titled "A Double Chain Tomato Semi-bubbling Elevator" discloses a kind of existing bubbling machine. The bubbler includes a pump housing, an air pump connected to the pump housing, and a motor that drives the air pump to inflate.

Existing bubbling machine has the deficiency that can not stop automatically after falling down.

Contents of the invention

The invention provides a fall-down self-power-off type bubbling machine that can automatically stop after falling, which solves the problem that the existing bubbling machine cannot automatically stop after falling.

The above technical problems are solved by the following technical solutions: a fall-off self-power-off bubbler, including a pump casing, a power lead-in wire and a motor, the pump casing is provided with an anti-fall switch, and the power lead-in wire includes a first segment and a second segment with one end electrically connected to the motor, the anti-fall switch includes an insulating casing fixed to the pump casing, a weight and two wiring pins fixed to the casing, the two wiring pins One of the connecting pins is connected with one end of the first section, and the other connecting pin is connected with the other end of the second section. There is an assembly cavity inside the shell, and the two connecting pins The inner end of the inner end is located in the assembly cavity, and the assembly cavity is provided with a swing arm, a conductive piece, and a hook connected to the swing arm so that the conductive piece remains at a position pressed on the inner ends of the two terminal pins. The barb, the barb return spring that drives the barb to rotate towards the swing arm, and the barb part magnet arranged on the barb, the barb and the swing arm are hinged together with the shell, and the swing arm is provided with a A heavy ball guide cavity extending up and down, the heavy ball is connected in the heavy ball guide cavity in such a way that it can only slide along the extending direction of the heavy ball guide cavity, and the assembly cavity is also provided with the conductive sheet The power-off spring that is separated from the two terminal pins, when the heavy ball is pressed on the conductive sheet, the conductive plate can overcome the elastic force of the power-off spring and press on the inner ends of the two terminal pins, and the heavy ball is set There are heavy ball magnets, and the magnetic poles of the same polarity of the barb magnet and the heavy ball magnet are in opposite directions. When the present invention is in the upright state, the weight of the heavy ball overcomes the elastic force of the spring so that the conductive sheet abuts against the inner ends of the two connecting feet at the same time, and the two connecting feet are connected through the conductive sheet, that is, the electricity can The motor is supplied by the power lead. During the tilting process of the bubbler, although the pressing force of the heavy ball on the conductive sheet gradually decreases, the position of the conductive sheet will not move under the action of the barb (that is, the conductive sheet is always reliably connected to the connecting pin) , when the heavy ball continues to slide away from the conductive sheet to the set position, the repulsive force generated between the barb magnet and the heavy ball magnet drives the barb to unhook and the barb return spring stores energy, and the barb breaks after unhook The electric spring releases energy instantaneously to quickly disengage the conductive sheet from the connecting pin, thereby reducing the disconnection time and arc. At this time, the power lead is disconnected, the motor stops, and the bubbler stops working. When the bubbling machine is erected, the heavy ball moves towards the conductive sheet, and the gravity of the heavy ball makes the power-off spring store energy and the conductive sheet close together. At this time, the repulsive force decreases due to the change of the distance between the magnet of the heavy ball and the magnet of the barb. Small, the barb reset spring drives the barb to reset. At this time, if the power-off spring has a tendency to vibrate and drive the conductive sheet to repeatedly on-off phenomenon between the conductive sheet and the terminal pin, the barb will limit the occurrence of repeated on-off phenomenon, thereby causing To avoid the sparking phenomenon caused by repeated switching. And the existing anti-fall switch is that one end of the shrapnel is fixedly connected with one of the two wiring pins, and the shrapnel (that is, the connection of the two wiring pins) is disconnected by the elastic force of the shrapnel itself, so the shrapnel is both The power source is also a conductive piece connected to the two terminals. After the shrapnel has been opened and closed many times, the resistance will increase and the ears will heat up; because the pressing force of the heavy ball on the shrapnel gradually decreases during the fall process, so The shrapnel also bounces gradually instead of instantly, so the disconnection time is long, and the closing process is not only gradual, but also the impact of the heavy ball on the shrapnel will cause the shrapnel to vibrate, causing the shrapnel to repeat between the terminal pins. The on-off phenomenon, so the on-off time between the conductive sheet and the terminal pin is long, which is prone to sparking and arc amplification.

Preferably, the heavy ball is suspended in the heavy ball guide cavity by a tension spring and pressed against the conductive sheet. It is possible to stop the bubbler when it is not completely tilted but only tilted to a set angle that is not allowed.

Preferably, a cushioning pad is provided at the lower end of the heavy ball guide cavity. The impact of the heavy ball on the conductive sheet is small, and the conductive sheet is less likely to be repeatedly switched on and off, so that the barb is not easy to be damaged. At the same time, the vibration generated when the air pump is erected can be reduced.

The present invention also includes an air blowing pump, the motor and the air blowing pump are connected together through a rotating shaft, the rotating shaft is supported on the pump housing through two bearings, an oiling chamber is formed between the pump housing and the two bearings, and the oiling There is a first gear and a second gear meshed together in the cavity, the first gear is connected with the shaft, the second gear is connected with the pump casing in rotation; A refueling mechanism is provided, and the refueling mechanism includes an oil outlet, an air supply port, a sealing head, a first spring that drives the sealing head to seal the oil outlet, a cylinder body and a piston that is slidingly sealed and connected to the cylinder body. The cylinder body is divided into an air cavity and an oil cavity, the piston is provided with a one-way valve that opens towards the air cavity, the piston is connected with the sealing head through a connecting rod, and the oil outlet is connected with the oil passage through the oil passage. The oil chamber is connected, the air supply port is connected with the air chamber through the air passage, the oil outlet is arranged on the tooth top of the first gear, and the sealing head protrudes from the teeth of the first gear. The distance between the tops is greater than the top clearance between the first gear and the second gear. When in use, lubricating oil is installed in the oil chamber, and the first gear is driven to rotate when the rotating shaft rotates. When the first gear rotates to the point where the teeth with the oil outlet mesh with the second gear, the tooth slots of the first gear drive the seal The head retracts into the gear, and when the sealing strip retracts, the first spring stores energy and at the same time drives the piston to move towards the oil chamber through the connecting rod, and drives the lubricating oil in the oil chamber to flow through the oil passage to the oil outlet and then to the oil filling chamber to achieve Lubrication of the bearing; when the sealing head is staggered with the tooth groove, the sealing head re-seals the oil outlet under the action of the first spring, and the moving process of the sealing head drives the piston to move toward the air chamber. At this time, due to the oil in the oil chamber Partially flowed out, so the pressure in the oil chamber is lower than the pressure in the air chamber, the one-way valve is opened to replenish the air into the oil chamber and recover the excess oil in the oil chamber into the oil chamber, so that the next time the piston squeezes the oil chamber Lubricating oil can flow out reliably. Automatic lubrication of motor bearings is realized.

Preferably, the pump casing is provided with a suction cup, and the suction cup includes a first suction cup connected with the pump casing, a second suction cup is arranged inside the first suction cup, and the first suction cup and the second suction cup are surrounded by a suction cup. into an adsorption tank. When in use, by squeezing the first suction cup and the second suction cup at the same time, negative pressure is formed in the inner space of the first suction cup and in the suction groove, that is, the bubbler is fixed by the suction of the first suction cup and the second suction cup together. at the installation location. When the absorption part of the first suction cup is temporarily disengaged due to vibration or instantaneous impact force, under the action of the second suction cup, the first suction cup will recover and perform adsorption after the instantaneous impact force disappears, so that the suction cup is instantly absorbed. There will be no shedding phenomenon when the local instantaneous disconnection occurs due to impact, and the decrease in the adsorption force will be small, that is, the good adsorption effect will still be maintained. It is fixed by suction cup, which is convenient when fixing the bubbler.

Preferably, the suction end of the second suction cup protrudes from the suction end of the first suction cup. Because the first suction cup is located on the outside, it can be visually observed whether it is attached or not, but whether the second suction cup is attached or not cannot be visually seen, so if the first suction cup exceeds the second suction cup, there are the following shortcomings : If the pressing force is small, the second suction cup may not be adsorbed. In order to ensure the second suction cup is adsorbed, it needs to be pressed with a larger force. It is difficult to grasp the force and how long it lasts, which often leads to unnecessary Waste of effort and waste of time. In this technical solution, as long as the first suction cup is adsorbed, the second suction cup must be adsorbed, so that the second suction cup can be easily and quickly ensured to be adsorbed during assembly, which improves the convenience of installing the bubbler.

Preferably, a plurality of elastic connecting strips connecting the first suction cup and the second suction cup are arranged in the suction groove, and the elastic connecting strips are distributed along the circumferential direction of the second suction cup. When both the first suction cup and the second suction cup are adsorbed, the elastic connecting strip is elongated to store energy, and the energy produces a tendency to prompt the first suction cup to move toward the adsorbed object, so that when the first suction cup is momentarily disconnected, the acceleration The first sucker returns to the adsorption state. That is to say, it further reduces the possibility that the bubbler will fall off when it is subjected to a momentary impact.

Preferably, the suction cup also includes an air passage connecting the inner space of the second suction cup and the adsorption groove with the outer space of the first suction cup, and the outer end of the air passage is hinged with a sealing cover for sealing the outer end of the air passage . When the sucker is extruded to absorb, the air in the sucker can push away the sealing cover and discharge, but the air pressure difference makes the sealing cover cover the outer end of the airway again when sucking. When it is necessary to move the bubbler, manually open the sealing cover to break the vacuum in the inner space of the suction cup, so that it can be disassembled with a small force while ensuring a large suction force.

The present invention also includes an air pump, the motor and the air pump are connected together through a rotating shaft, a circular inner rod is rotatably pierced through the rotating shaft, and a first friction layer is provided on the outer peripheral surface of the inner rod. The inner surface of the rotating shaft is provided with a second friction layer, and the inner rod and the rotating shaft are abutted together through the first friction layer and the second friction layer. When the rotating shaft is twisted, the rotating shaft will rotate relative to the inner rod. During the rotation, the outer friction layer and the second friction layer generate frictional energy to eliminate the torque force, thereby improving the anti-twisting ability of the rotating shaft.

Preferably, the inner rod includes a left rod and a right rod, the left end of the left rod is connected with the rotating shaft through a left energy-absorbing spring, and the right end surface of the left rod is provided with several The first reversing tooth, the right end of the right rod is connected with the rotating shaft through the right energy-absorbing spring, and the left end surface of the right rod is provided with a number of second reversing teeth distributed along the circumferential direction of the right rod. The first reversing teeth and the second reversing teeth mesh together. When the rotating shaft is twisted and the inner rod is also twisted, under the action of the first reversing tooth and the second reversing tooth, the right rod and the left rod will be driven to separate in the circumferential direction, which will cause the energy-absorbing spring to deform and absorb energy. . Further passed the twist resistance of the shaft.

Preferably, a friction agent is filled between the rotating shaft and the inner rod. When the first friction layer and the second friction layer are worn during use and the frictional energy absorption effect is reduced, the friction agent can be filled between the first friction layer and the second friction layer so that the first friction layer and the second friction layer are still intact. A good frictional energy absorption effect is maintained, thereby solving the problem that the friction force decreases and the contact force between the first friction layer and the second friction layer cannot be conveniently adjusted to adjust the friction force.

The invention has the following advantages: it can stop automatically after falling down.

Description of drawings

FIG. 1 is a schematic diagram of Embodiment 1 of the present invention.

FIG. 2 is a partially enlarged schematic diagram of point C in FIG. 1 .

Fig. 3 is an enlarged cross-sectional schematic diagram of the anti-fall switch.

Fig. 4 is a schematic diagram of the anti-fall switch at the moment when the air pump tilts and the power-off spring has not yet released energy.

Fig. 5 is a schematic diagram of the anti-fall switch at the time when the air pump is tilted and the power-off spring also releases energy.

Fig. 6 is a schematic diagram of Embodiment 2 of the present invention.

Fig. 7 is a schematic cross-sectional view of the first gear and the second gear.

FIG. 8 is a partially enlarged schematic diagram of A in FIG. 7 .

FIG. 9 is a partially enlarged schematic diagram at B of FIG. 7 .

FIG. 10 is a schematic cross-sectional view of the rotating shaft in Embodiment 3 of the present invention.

Among the figure: rotating shaft 51, inner rod 511, left rod 5111, right rod 5112, outer friction layer 5113, first reversing tooth 5114, second reversing tooth 5115, inner friction layer 512, left energy absorbing spring 513, right absorbing Energy spring 514, pump housing 52, blower pump 53, motor 54, bearing 55, refueling cavity 56, second gear 57, short shaft 571, first gear 58, addendum 581 of the first tooth, power lead-in wire 59, the first One section 591, second section 592, suction cup 6, air duct 61, first suction cup 62, suction end 621 of the first suction cup, second suction cup 63, suction end 631 of the second suction cup, suction groove 64, elastic connecting strip 65 , sealing cover 66, anti-fall switch 7, shell 71, assembly cavity 711, pit 712, wiring pin 72, power-off spring 73, conductive sheet 74, cushioning pad 75, heavy ball 76, heavy ball part magnet 761, pendulum Arm 77, first hinge shaft 771, barb introduction surface 772, heavy ball guide cavity 773, heavy ball guide cavity 773, barb 78, second hinge shaft 781, barb return spring 782, barb portion magnet 783, pull Spring 79, refueling mechanism 8, oil outlet 81, gas supply port 82, sealing head 83, first spring 84, cylinder body 85, air chamber 851, oil chamber 852, piston 86, one-way valve 861, connecting rod 862, oil The channel 87, the air channel 88, the distance L1 that the sealing head protrudes from the tooth top of the first gear, and the tooth top gap L2 between the first gear and the second gear.

Detailed ways

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

Embodiment 1, referring to FIG. 1 , a fall-down self-disconnecting bubbler, including a pump casing 52 and a power lead-in wire 59 . The pump casing 52 is connected with an air pump 53 , a motor 54 for driving the air pump, a suction cup 6 and an anti-fall switch 7 . The motor 54 and the air pump 53 are connected together through a rotating shaft 51 . The power lead-in 59 includes a first section 591 and a second section 592 . One end of the second section 592 is connected to the coil of the motor 54 . One end of the first section 591 is connected with the air pump control mechanism.

Sucker 6 has two. The suction cup 6 includes an air passage 61 and a first suction cup 62 connected with the pump casing 52 . A second suction cup 63 is connected inside the first suction cup 62 . The suction end of the second suction cup 63 protrudes from the suction end of the first suction cup 62 . Both the first suction cup 62 and the second suction cup 63 are made of rubber. A suction slot 64 is enclosed between the first suction cup 62 and the second suction cup 63 . The suction end 631 of the second suction cup protrudes from the suction end 621 of the first suction cup. A plurality of elastic connecting bars 65 are arranged in the suction groove 64 . The elastic connecting strips 65 are distributed along the circumferential direction of the second suction cup 63 . One end of the elastic connecting strip 65 is connected with the first suction cup 62, specifically in an integrated structure. The second suction cup 63 at the other end of the elastic connecting strip 65 is connected together, specifically in an integral structure. The air channel 61 communicates both the inner space of the second suction cup 63 and the adsorption groove 64 with the outer space of the first suction cup 62 . The outer end of the air duct 61 is provided with a sealing cover 66 which opens outward.

The anti-fall switch 7 includes a shell 71 and two terminal pins 72 . The shell 71 is made of insulating material. The two terminal pins 72 are connected with the other end of the first section 591 and the other end of the second section 592 respectively.

Referring to FIG. 2 , the sealing cover 66 is hinged by a hinge shaft 67 . The hinge 67 is located above the sealing cover 66, so that when the air pressure inside the first suction cup 62 and the second suction cup 63 is lower than the outside air pressure, the sealing cover 66 can be reliably resealed to the outer end of the air passage 61.

Referring to FIG. 3 , the anti-fall switch further includes a power-off spring 73 , a conductive sheet 74 , a heavy ball 76 , a swing arm 77 , a barb 78 and an extension spring 79 .

The housing 71 is provided with an assembly cavity 711 . A recess 712 is formed in the middle of the bottom wall of the assembly cavity 711 .

The terminal pin 72 is fixed on the bottom surface of the housing 1 . The inner end of the terminal pin 72 is located in the assembly cavity 711 .

The power-off spring 73 is a compression spring that expands and contracts in the vertical direction. The power-off spring 73 is located in the assembly cavity 711 . The lower end of the power-off spring 73 is located in the recess 712 . The upper end of the power-off spring 73 abuts against the middle part of the conductive sheet 74 . The power-off spring 73 is in a compressed state.

The conductive sheet 74 is located in the assembly cavity. The left and right ends of the conductive sheet 74 are pressed against the inner ends of the two terminal pins 72 .

The swing arm 77 is in the shape of a "T". The left end of the swing arm 77 is hinged in the assembly cavity 711 through the first hinge shaft 771 . The first hinge shaft 771 extends along the horizontal direction. The right end portion of the swing arm 77 is provided with a barb introduction surface 772 . The lower end of the swing arm 77 is fixedly connected with the conductive sheet 74 . The swing arm 77 is provided with a heavy ball guide cavity 773 . The lower end of the heavy ball guide cavity 773 is provided with a cushioning pad 75 . The heavy ball 76 is located in the heavy ball guide cavity 773 . The heavy ball 76 is suspended in the heavy ball guide cavity 773 by an extension spring 79 . The heavy ball 76 is provided with a heavy ball portion magnet 761 . The N pole of the heavy ball part magnet 761 is located at the right end towards the right, and the S pole is located at the left end towards the left. The lower end of the barb 78 is hinged in the assembly cavity 711 through the second hinge shaft 781 . The second hinge axis 781 extends along the horizontal direction. The second hinge axis 781 is parallel to the first hinge axis 771 . The barb 78 is hooked on the right end of the swing arm 77 to restrict the swing arm 77 from swinging upwards, so that the conductive piece 74 remains in a position pressed against the inner end of the terminal pin 72 . The upper end of the barb 78 is provided with a barb return spring 782 . A barb return spring 782 is used to drive the barb towards the swing arm. A barb magnet 783 is also provided on the barb 78 . The N pole of the barb portion magnet 783 is located at the left end facing left, and the S pole is located at the right end facing right.

Referring to Fig. 4, when the air pump is toppled and the anti-fall switch is toppled together, the extension spring 79 overcomes the gravity of the heavy ball 76 so that the heavy ball 76 begins to translate towards the upper end of the swing arm 77, although the heavy ball 76 is opposite to the conductive sheet 74 at this time. The pressing force decreases or even disappears, but under the action of the barb 78, the contact state between the conductive sheet 74 and the inner end of the terminal pin 72 remains unchanged. The repulsive force between 761 and the barb portion magnet 783 increases, and when the repulsive force increases to overcome the elastic force of the barb return spring 782, the barb 78 is disengaged from the right end of the swing arm 77.

Referring to Fig. 5, after the barb 78 is disengaged from the swing rod 77, the power-off spring 73 releases energy instantaneously and pushes the conductive sheet 74 away from the inner end of the terminal pin 72 quickly, so that a pair of terminal pins 72 are disconnected so as to realize the The power lead-in wire 59 is disconnected, so that electricity cannot be input to the motor 54 (see FIG. 1 ), so that the present invention stops bubbling, and the disconnection time of the anti-fall switch is short.

Referring to Fig. 3, when the air pump is erected, the heavy ball 76 makes the swing rod 77 swing and the conductive piece 74 is pressed onto the inner end of the connecting pin 72, and the repulsive force between the magnets during the downward movement of the heavy ball 76 resets With the reduction of the repelling force, the barb return spring 782 makes the barb 78 move closer to the swing arm 77. When the conductive sheet 74 abuts against the terminal pin 72, the barb 78 is hooked to the swing arm 77 again. On the right end, so that the vibration generated by the power-off spring 74 cannot cause repeated on-off between the conductive sheet 74 and the terminal pin 72, thereby preventing ignition.

Referring to Fig. 1, during use, the blower pump is adsorbed on the position where the bubbler is installed through the suction cup 6.

Embodiment two, the difference with embodiment one is:

Referring to FIG. 6 , the rotating shaft 51 is supported on the pump casing 52 through two bearings 55 . A refueling chamber 56 is formed between the pump housing 52 and the two bearings 55 . A first gear 58 and a second gear 57 are arranged in the oil filling chamber 56 . The first gear 58 and the second gear 57 mesh together. The first gear 58 is connected with the rotating shaft 51 . The second gear 57 is rotationally connected with the pump casing 52 through a short shaft 571 .

Referring to FIG. 7 , the first gear 58 is provided with a refueling mechanism 8 . The number of refueling mechanisms 8 is equal to the number of teeth of the first gear 58 .

Referring to FIG. 8 , the refueling mechanism 8 includes an oil outlet 81 , an air supply port 82 , a sealing head 83 , a first spring 84 , a cylinder 85 and a piston 86 . The oil outlet 81 and the air supply port 82 of the same fueling mechanism are arranged on the tooth top 581 of the same tooth of the first gear 58, and the tooth top of the same tooth is only provided with an oil outlet and an air supply port of the fueling mechanism, that is, this In the embodiment, the refueling mechanism and the teeth of the first gear 58 are provided in a one-to-one correspondence. The sealing head 83 and the first spring 84 are arranged in the oil outlet 81 , and under the action of the first spring 84 , the sealing head 83 protrudes from the crest 581 and seals the oil outlet. The distance L1 where the sealing head protrudes from the tooth top of the first gear is greater than the tooth top gap L2 between the first gear and the second gear (see FIG. 9 ). The cylinder body 85 is formed in the first gear 58 in an integral structure, that is, the cavity in the first gear 58 . The piston 86 is slidingly and sealingly connected to the cylinder body 85 . The piston 86 divides the cylinder 85 into an air chamber 851 and an oil chamber 852 . The piston 86 is provided with a one-way valve 861 that opens toward the air cavity 851 . The piston 86 is connected with the sealing head 83 through the connecting rod 862 . The connecting rod 862 is connected with the first gear 58 in a sliding seal so that the oil outlet 81 is disconnected from the air cavity 851 . The oil outlet 81 communicates with the oil cavity 852 through the oil passage 87 . The air supplement port 82 communicates with the air cavity 851 through the air channel 88 . Both the oil passage 87 and the air passage 88 are formed in the first gear 58 in an integral structure, that is, holes in the first gear 58 .

The process of the lubrication of the bearing among the present invention is:

7, during the rotation of the first gear 58, the bottom surface of the tooth groove of the second gear 57 squeezes the sealing head 83 to shrink in the first gear 58, and the sealing head 83 shrinks so that the oil outlet 81 is opened and the first Spring 84 stores energy.

Referring to Fig. 8, when the sealing head 83 shrinks, the piston 86 is driven to move toward the oil chamber 852 through the connecting rod 862, and the pressure in the oil chamber 852 rises so that the one-way valve 861 closes and the lubricating oil in the oil chamber 852 flows out through the oil passage 87. The oil port 81 flows out from the oil outlet port 81 to realize the lubrication of the bearing 55 .

When the second gear loses its pressing effect on the sealing head 83, the sealing head 83 moves outward under the action of the first spring 84 to seal the oil outlet 81, and when the sealing head 83 stretches out, the piston 86 is driven by the connecting rod 862 Moving toward the air chamber 851, the pressure in the oil chamber 852 drops and the pressure in the air chamber 851 rises, so that the one-way valve 861 opens, and the air and excess oil in the refueling chamber 56 pass through the air supply port 82, the air passage 88 and the one-way valve 861 and flows to the oil chamber 852, so that the pressure in the oil chamber 852 can be maintained equal to the air pressure in the outside of the gear, so that the lubricating oil can be extruded when the piston 86 moves toward the oil chamber 852 next time.

Embodiment three, the difference with embodiment two is:

Referring to FIG. 10 , the rotating shaft 51 is pierced with a circular inner rod 511 . The inner rod 511 is a tubular structure. The inner surface of the rotating shaft 51 is provided with an inner friction layer 512 . The inner rod 511 includes a left rod 5111 and a right rod 5112 . The outer peripheral surfaces of the left rod 5111 and the right rod 5112 are provided with an outer friction layer 5113 . The outer friction layer 5113 covers the inner rod 511 along the circumference of the inner rod 511 . The left end of the left rod 5111 is connected with the rotating shaft 51 through the left energy-absorbing spring 513 . The right end surface of the left rod 5111 is provided with a plurality of first reversing teeth 5114 distributed along the circumferential direction of the left rod. The right end of the right rod 5112 is connected with the rotating shaft 51 through the right energy-absorbing spring 514 . The left end surface of the right rod 5112 is provided with a plurality of second reversing teeth 5115 distributed along the circumferential direction of the right rod. The first reversing teeth 5114 and the second reversing teeth 5115 mesh together. Both the left lever 5111 and the right lever 5112 are rotatably connected to the rotating shaft 51 by abutting against the inner friction layer 512 through the outer friction layer 5113 . The rotating shaft 51 is filled with a liquid friction agent.

When the rotating shaft 51 twists, the rotating shaft 51 will rotate relative to the inner rod 511 . During the movement, the outer friction layer 5113 and the inner friction layer 512 will rub against each other to consume energy and prevent twisting. If the torque of the rotating shaft 51 causes the inner rod 511 to twist together, the left rod 5111 and the right rod 5112 will move axially under the guidance of the first reversing teeth 5114 and the second reversing teeth 5115. Separation, the separation process can not only make the outer friction layer 5113 rub against the inner friction layer 512 to absorb energy, but also promote the deformation of the left energy-absorbing spring 513 and the right energy-absorbing spring 514 to absorb energy, thereby absorbing energy and preventing torsion. function, so as to improve the anti-twisting ability of the shaft. And the right energy-absorbing spring 514 and the left energy-absorbing spring 513 can also play the role of repairing the rotating shaft 1 .

Claims (10)

1. A fall-down self-power-off bubbler, comprising a pump casing, a power supply lead-in wire and a motor, characterized in that the pump casing is provided with an anti-fall switch, and the power supply lead-in wire includes a first section and an end with the same The second section where the motors are electrically connected together, the anti-fall switch includes an insulating shell fixed to the pump casing, a weight and two connecting pins fixed to the shell, one of the two connecting pins It is connected with one end of the first section, and the other connecting pin is connected with the other end of the second section. There is an assembly cavity inside the shell, and the inner ends of the two connecting pins are located at the In the assembly cavity, the assembly cavity is provided with a swing arm, a conductive sheet, a barb hooked on the swing arm so that the conductive sheet remains pressed on the inner ends of the two terminal pins, and a driving barb. The barb return spring that the hook rotates toward the swing arm and the barb part magnet that is arranged on the barb, the barb and the swing arm are hinged together with the shell, and the swing arm is provided with a weight extending in the up and down direction The ball guide cavity, the heavy ball is connected in the heavy ball guide cavity in such a way that it can only slide along the extending direction of the heavy ball guide cavity, and the assembly cavity is also equipped with the conductive sheet and the two The power-off spring with the connecting pins separated, when the heavy ball is pressed on the conductive piece, the conductive piece can overcome the elastic force of the power-off spring and press on the inner ends of the two connecting pins, and the heavy ball is provided with a heavy-ball magnet , the direction of the magnetic poles of the same polarity of the barb magnet and the heavy spherical magnet is opposite. 2. The fall-down self-disconnecting bubbler according to claim 1, wherein the heavy ball is suspended in the heavy ball guide cavity by a tension spring and pressed against the conductive sheet. 3. The fall-down self-disconnection bubbler according to claim 1 or 2, characterized in that a cushioning pad is provided at the lower end of the heavy ball guide cavity. 4. The fall-down self-power-off bubbler according to claim 1 or 2, characterized in that it also includes an air pump, the motor and the air pump are connected together through a rotating shaft, and the rotating shaft is supported by two bearings on the The pump casing, the oil filling cavity is formed between the pump casing and the two bearings, the first gear and the second gear meshed together are arranged in the oil filling cavity, and the first gear is connected with the rotating shaft , the second gear is rotatably connected with the pump casing; the first gear is provided with a refueling mechanism, and the refueling mechanism includes an oil outlet, an air supply port, a sealing head, and a driving sealing head to seal the oil outlet The first spring, the cylinder body and the piston that is slidingly and sealedly connected to the cylinder body, the piston divides the cylinder body into an air chamber and an oil chamber, the piston is provided with a one-way valve that opens toward the air chamber, and the piston The connecting rod is connected with the sealing head, the oil outlet is connected with the oil chamber through the oil passage, the air supply port is connected with the air chamber through the air passage, and the oil outlet is arranged at The tooth top of the first gear, the distance from which the sealing head protrudes from the tooth top of the first gear is greater than the tooth top gap between the first gear and the second gear. 5. The fall-down self-power-off bubbler according to claim 1 or 2, wherein the pump casing is provided with a suction cup, and the suction cup includes a first suction cup connected with the pump casing, and the first suction cup is connected with the pump casing. A second suction cup is arranged inside a suction cup, and a suction groove is enclosed between the first suction cup and the second suction cup. 6 . The fall-down self-power-off bubbler according to claim 5 , wherein the suction end of the second suction cup protrudes from the suction end of the first suction cup. 7 . 7. The fall-down self-power-off bubbling machine according to claim 5, characterized in that, there are several elastic connecting strips connecting the first suction cup and the second suction cup together in the suction tank, and the elastic connection The strips are distributed along the circumference of the second suction cup. 8. The fall-down self-disconnecting bubbler according to claim 5, characterized in that, the suction cup also includes an air passage connecting both the inner space of the second suction cup and the adsorption groove with the outer space of the first suction cup , the outer end of the air passage is hinged with a sealing cover for sealing the outer end of the air passage. 9. The fall-down self-disconnecting bubbler according to claim 1 or 2, characterized in that it includes an air pump, the motor and the air pump are connected together through a rotating shaft, and the rotating shaft is rotatably pierced with A circular inner rod, the outer peripheral surface of the inner rod is provided with a first friction layer, the inner surface of the rotating shaft is provided with a second friction layer, and the inner rod and the rotating shaft pass through the first friction layer and the second friction layer butt together. 10. The fall-down self-disconnecting bubbler according to claim 9, wherein the inner rod includes a left rod and a right rod, and the left end of the left rod is connected to the rotating shaft through a left energy-absorbing spring. Together, the right end surface of the left rod is provided with a number of first reversing teeth distributed along the circumference of the left rod, the right end of the right rod is connected with the rotating shaft through a right energy-absorbing spring, and the left end of the right rod The surface is provided with a number of second reversing teeth distributed along the circumferential direction of the right rod, and the first reversing teeth and the second reversing teeth mesh together.