CN205253411U - Hand gun type laboratory work liquid spray gun - Google Patents

Abstract

A pistol-type laboratory working fluid spray gun, which controls the rotation speed of the motor by pulling the trigger and pressing the self-locking switch to change the resistance value of the variable resistor, and then realizes the adjustable control of the working fluid flow rate; at the same time, it is connected in parallel with the motor. The light shows the strength of the working fluid flow rate by glowing dimly; the power supply of the spray gun is installed in the handle of the gun and can be charged, which realizes the continuous operation of the spray gun and the free transfer of the space position of the spray gun; the handle of the spray gun can be held or fixed by a clip The required position and spraying direction can be oriented, rotated and fixed according to actual needs. The utility model can effectively wash away the processing products and heat, promote the updating of the working fluid in the processing area, improve the quality and efficiency of the workpiece processed by the machine tool, and has the advantages of simple structure, low cost, wide application range, convenient and durable use, and the like.

Description

A pistol-type laboratory working fluid spray gun

technical field

The utility model relates to a working fluid spray gun, in particular to a pistol type laboratory working fluid spray gun.

Background technique

In the process of modern machine tool processing, the working fluid has a great influence on the processing technology index, and plays an important role in the machining accuracy, surface roughness and efficiency of the workpiece. processing plays a key role. The working fluid system of large-scale machine tools is mostly driven by a liquid pump, and the flow rate of the working fluid sprayed in the processing area cannot be adjusted. At the same time, the position of the spray gun and the working fluid tank can not be adjusted in a large space relative to the processing machine tool, which is not conducive to the configuration and update of the working fluid. . For small processing machine tools used in the laboratory, many machine tools are not equipped with working fluid spray guns, and the spraying direction of the working fluid is unstable. Some machine tool working fluids are placed in the workbench and cannot be updated in time. The staff often use droppers or pressure spray guns. Transporting the working fluid to the processing area not only consumes manpower, but because there is not enough flow and velocity, the working fluid cannot be updated in time, and the processing heat and products cannot be effectively taken away, which in turn has a negative impact on the processing of the workpiece.

Utility model content

In order to overcome the above-mentioned defects, the utility model provides a pistol-type laboratory working fluid spray gun, which can adjust the spraying flow rate of the working fluid, not only works stably and continuously, but also has accurate positioning, and can be held or fixed freely.

The technical solution adopted by the utility model to solve the technical problem is: a pistol-type laboratory working fluid spray gun, comprising a gun barrel and a gun handle. A trigger guard is provided on the outer side of the lower end of the trigger, and a liquid outlet pipe and a liquid inlet pipe are arranged inside the gun barrel, and the liquid inlet pipe and the liquid outlet pipe are connected to form an infusion pipe;

It is characterized in that a vane is provided at the junction of the liquid inlet pipe and the liquid outlet pipe, a motor is provided at the rear end of the gun barrel, the motor shaft penetrates into the infusion tube, and the blade is installed on the head of the motor shaft;

A sliding resistance coil, a saw blade, and a tension spring are also provided, and the two ends of the sliding resistance coil are fixed on the upper end of the gun bore, and the top of the trigger is provided with a sliding needle in sliding contact with the sliding resistance coil, and the middle part of the trigger is provided with a rotating shaft;

One end of the saw blade and the tension spring is respectively connected to the left and right sides of the upper part of the trigger, the other end of the tension spring is fixed at the lower right corner of the gun chamber, and the other end of the saw blade is inserted into the guide hole provided at the left end of the gun chamber, and can be Sliding in the guide hole;

A power supply is arranged in the handle of the gun, and the power supply and its switch, sliding needle, sliding resistance coil and motor are connected in series.

The lower end of the handle is hinged with a rotating rod, which can rotate 180° relative to the rotating rod; the lower end of the rotating rod is connected to a clip through a rotating connector, and the rotating rod can rotate 360° relative to the upper cover of the clip.

Friction washers are provided on the inner side of the front end of the upper cover plate and the lower cover plate of the clip.

A pressing self-locking switch is provided at the guide hole to limit the movement of the saw blade.

The power supply is a rechargeable lithium battery for continuous power supply.

The upper right end of the handle of the gun is provided with a charging interface, and the charging interface is preferably a USB charging socket, which is used in conjunction with a USB power supply data line.

The head of the gun barrel is provided with a gun head connecting thread, which can be connected with a centralized or shower nozzle.

The sliding needle is made of conductive metal, and is in interference fit and moving contact with the sliding resistance coil.

An indicator light is installed on the barrel, and the indicator light is connected in parallel with the motor; the electric wires at both ends of the indicator light enter the handle and the chamber of the gun, and are respectively connected with the negative pole of the power supply and the left end of the sliding resistance coil, and the positive pole of the power supply and the sliding needle are connected in parallel. power switch in series.

The connection between the motor and the rear end of the gun barrel is provided with a leak-proof washer.

In the gun barrel, the liquid inlet pipe and the liquid outlet pipe are separated by blades, the motor is installed on the inclined surface of the rear end of the barrel, and a leak-proof gasket is installed in front of the motor, the indicator light is installed on the upper part of the rear end of the barrel, and the barrel is located on the barrel. Below, the upper end of the trigger is connected with the saw blade through a pull rod, and a power switch is arranged above the power supply.

The lower end of the handle is connected with the flat end of the rotating rod, and the round end of the rotating rod is connected with the rotating connector, and the rotating connector is fixed on the clip upper cover, and a torsion spring is arranged between the clip upper cover and the clip lower cover. The lower end of the gun handle and the flat end of the rotating rod, and the round end of the rotating rod and the rotating connecting piece can all be in contact with the connecting bolt through interference fit, and then the gun handle and the clip can realize multi-dimensional orientation in space, and the rotation is stable and reliable without loosening.

The beneficial effects of the utility model are: driven by the motor, the working fluid can be continuously supplied; the rotation speed of the motor can be controlled by changing the resistance value of the variable resistor by pulling the trigger and pressing the self-locking switch, thereby realizing the adjustable flow rate of the working fluid. Adjustment control; at the same time, the indicator light connected in parallel with the motor shows the strength of the flow rate of the working fluid by luminous dark; Hand-held, can also be fixed in the desired position by the clip, the spraying direction can be oriented and fixed according to actual needs.

The utility model can effectively wash away the processing products and heat, promote the renewal of the working fluid in the processing area, improve the quality and efficiency of the workpiece processed by the machine tool, and has the advantages of simple structure, low cost, wide application range, convenient and long-lasting use, etc. It is a laboratory experiment process It is a rare and good assistant, which increases the feasibility of the experiment and promotes the success of the experiment. It is worth promoting and using.

Description of drawings

Fig. 1 is the structural representation of the pistol-type laboratory working fluid spray gun;

Fig. 2 is a schematic diagram of the internal circuit of the pistol-type laboratory working fluid spray gun;

In the figure: 1. Gun head connection thread, 2. Gun barrel, 3. Liquid outlet pipe, 4. Indicator light, 5. Blade, 6. Leak-proof gasket, 7. Motor, 8. Liquid inlet pipe, 9. Liquid inlet Interface, 10, gun chamber, 11, charging interface, 12, power switch, 13, power supply, 14, handle of gun, 15, butt end of rotating rod, 16, round end of rotating rod, 17, rotating connector, 18, clip upper cover plate, 19, torsion spring, 20, clip lower cover plate, 21, friction pad, 22, tension spring, 23, rotating shaft, 24, trigger, 25, trigger guard ring, 26, pull rod, 27, Sliding needle, 28, sliding resistance coil, 29, pressing self-locking switch, 30, saw blade, 31, guide hole.

detailed description

Below in conjunction with accompanying drawing, the utility model is further described:

Fig. 1 is a schematic diagram of the structure of a pistol-type laboratory working liquid spray gun. In the gun barrel 2, a liquid outlet pipe 3 and a liquid inlet pipe 8 are arranged in parallel (parallel to the gun barrel), and the liquid inlet pipe and the liquid outlet pipe 3 are connected to form an infusion pipe. The rear end of the liquid inlet pipe 8 leads to the liquid inlet port 9 .

A motor 7 fixed on the rear slope of the gun barrel 2 is arranged above the liquid inlet interface 9 (the liquid inlet interface 9 is located below the motor 7 and is used to connect with the working fluid leather tube), and a leak-proof gasket 6 is installed in front of the motor 7 (that is, a leak-proof Gasket is arranged at the motor and gun barrel rear end joint), the motor shaft passes through the leak-proof gasket 6 and enters the infusion tube, and the blade 5 is housed at the motor shaft head. This vane 5 separates the boundary line position as liquid outlet pipe 3 and liquid inlet pipe 8, and indicator light 4 is housed on the gun barrel 2 rear end before motor 7.

A gun chamber 10 is provided below the gun barrel 2, and both sides of the sliding resistance coil 28 are fixed on the upper end of the gun chamber 10, and the sliding needle 27 used in conjunction with the sliding resistance coil 28 is arranged on the top of the trigger 24 in the gun chamber 10, and the middle part of the trigger 24 is arranged A rotating shaft 23 is arranged, and a trigger guard 25 is provided on the outer side of the lower end of the trigger 24 .

Two through holes (upper and lower through holes) are arranged on both sides of the upper part of the trigger 24, and the pull rod 26 on the left side of the trigger 24 is connected to the upper through hole, and the tension spring 22 on the right side of the trigger 24 is connected to the lower through hole. The other end of tension spring 24 is fixed on the lower right corner of the gun chamber, and the other end of pull bar 26 is connected with saw blade 30 . The saw blade 30 can slide in parallel (parallel to the gun barrel) in the guide hole 31 provided at the left end of the gun bore 10, and the side of the guide hole 31 is equipped with a compression self-locking switch 29 for limiting the movement of the saw blade 30.

The rear of the gun chamber 10 is provided with a handle 14, and a power supply 13 can be loaded into the handle 14. A power switch 12 is provided above the power supply 13, and a charging interface is provided at the upper right end of the handle 14. The lower end of the gun handle 14 is connected with the flat joint end 15 of the rotating rod, and the round end 16 of the rotating rod is connected with the rotating connector 17, and the rotating connector 17 is fixed on the upper cover plate 18 of the clamp, and the upper cover plate 18 of the clamp is connected with the lower cover plate of the clamp A torsion spring 19 is provided in the middle of the 20, and a friction washer 21 is provided on the inner side of the upper and lower cover plates 18 and 19 front ends of the clip.

The power supply 13 preferably selects a rechargeable lithium battery for continuous power supply, and the power supply charging interface 11 is preferably a USB charging socket, which is used in conjunction with a USB power supply data line. The gun barrel 2 head is provided with a gun head connecting thread 1, which can be connected with a centralized or shower nozzle. The sliding needle 27 is made of conductive metal, and the sliding needle 27 is in interference fit moving contact with the sliding resistance coil 28 .

The lower end of the gun handle 15 and the flat joint end 15 of the rotating rod, the round joint end 16 of the rotating rod and the rotating connector 17 can all be contacted through the interference fit of the connecting bolt, and then the gun handle 14 and the upper cover plate 18 of the clip can realize multi-dimensional orientation in space, and the rotation Stable and reliable without loosening. The rotating connecting piece 17 can realize 360 degree rotation with respect to the upper cover plate 18 of the clip, and the gun handle 15 can realize 180 degree rotation with respect to the butt joint end 15 of the rotating rod.

Fig. 2 Schematic diagram of the internal circuit of the pistol-type laboratory working fluid spray gun, the indicator light 4 is connected in parallel with the motor 7 (the two ends of the motor are respectively connected to the left end of the sliding resistance coil and the negative pole of the power supply, and a power supply is connected in series between the positive pole of the power supply 13 and the sliding needle 27 switch 12). The wires (at both ends of the indicator light) enter the gun handle 14 and the gun chamber 10 through the spray gun shell, and are respectively connected to the negative pole of the power supply 13 and the left end of the sliding resistance coil 28. There is a power switch 12 connected in series between the positive pole of the power supply 13 and the sliding needle 27. . The output voltage of the power supply 13 can be slightly higher than the rated voltage of the motor 7. The maximum value of the adjustable resistance value range of the sliding resistance coil 28 should not be too large. The resistance value selection needs to ensure the stable operation of the motor and not consume too much power.

The working process realized by the utility model is: turn on the power switch 12, the motor 7 starts to work, drives the blade 5 to rotate, and the air in the liquid inlet pipe 8 is sucked out to the infusion pipe 3, then the air pressure in the liquid inlet pipe 8 continues to decrease, and the standard atmospheric pressure The working hydraulic pressure in the leather tube is forced into the liquid inlet pipe 8, and the liquid outlet pipe 3 after entering the blade 5 is sprayed out. Pull the trigger 24, the tension spring 22 tightens the upper right end of the trigger 24, and the sliding pin 27 at the top of the trigger 24 slides to the left, then the resistance value of the sliding resistance coil 28 connected to the circuit decreases, and the connection between the indicator light 4 and the motor 7 ends As the access voltage increases, the current value flowing into the indicator light 4 and the motor 7 also increases, the indicator light 4 changes from dark to bright, the speed of the motor 7 increases, and the spraying speed of the working fluid of the spray gun increases. When the flow rate of the working fluid is adjusted to the desired value, press the compression self-locking switch 29, the saw blade 30 is compressed to limit movement, and the position of the sliding needle 27 is fixed. At this time, the spray gun can spray the working fluid stably and continuously. At the same time, you can continue to hold the gun handle 14 or fix the spray gun at the required position through the clips (18, 20), and rotate the round joint end 16 of the rotating rod and the gun handle 14 to realize the fixing of the spraying position of the spray gun and the adjustment of the spraying direction of the spray gun .

The above is only a preferred embodiment of the utility model, and is not a limitation to the technical solution of the utility model. Any simple modification made to the above implementation methods based on the technical essence of the utility model, equivalent changes and modifications, are included in this document. within the scope of utility model technical solutions.

Claims (10)

1. A pistol-type laboratory working fluid spray gun, comprising a barrel (2) and a handle (14), a barrel (10) is provided at the connection between the barrel and the handle, and a trigger (24) is arranged in the barrel, A trigger guard (25) is provided outside the lower end of the trigger, and a liquid outlet pipe (3) and a liquid inlet pipe (8) are arranged inside the gun barrel (2), and the liquid inlet pipe and the liquid outlet pipe are connected to form an infusion tube; It is characterized in that a vane (5) is provided at the junction of the liquid inlet pipe and the liquid outlet pipe, a motor (7) is provided at the rear end of the gun barrel (2), the motor shaft penetrates into the infusion pipe, and the blade (5) is installed on the motor shaft head; Also be provided with sliding resistance coil (28), saw blade (30), tension spring (22), described sliding resistance coil two ends are fixed on the upper end of gun bore (10), described trigger (24) top is provided with sliding resistance coil A sliding needle (27) in sliding contact, and a rotating shaft (23) is provided in the middle of the trigger; One end of the saw blade and the tension spring are respectively connected to the upper left and right sides of the trigger, the other end of the tension spring is fixed at the lower right corner of the gun chamber, and the other end of the saw blade is inserted into the guide hole (31) provided at the left end of the gun chamber. And can slide in the guide hole; The gun handle (14) is provided with a power supply (13), and the power supply and its switch (12), sliding needle (27), sliding resistance coil (28), and motor (7) are connected in series. 2. A pistol-type laboratory working fluid spray gun according to claim 1, characterized in that, the lower end of the gun handle (14) is hinged with a rotating rod, and the gun handle can rotate 180° relative to the rotating rod; The lower end of the rotating rod is connected to a clip through a rotating connecting piece (17), and the rotating rod can rotate 360° relative to the upper cover plate (18) of the clip. 3. A pistol-type laboratory working fluid spray gun according to claim 2, characterized in that friction washers (21) are provided inside the front ends of the upper cover plate (18) and the lower cover plate (19) of the clip. 4. A pistol-type laboratory working fluid spray gun according to claim 1, characterized in that, the guide hole (31) is provided with a pressing self-locking switch (29) for limiting the movement of the saw blade. 5. A pistol-type laboratory working fluid spray gun according to claim 1, characterized in that, the power supply (13) is a rechargeable lithium battery for sustainable power supply. 6. A pistol-type laboratory working fluid spray gun according to claim 5, characterized in that, the upper right end of the gun handle (14) is provided with a charging interface (11), and the charging interface is preferably a USB charging socket, which is compatible with USB Power and data cables are used together. 7. A pistol-type laboratory working fluid spray gun according to claim 1, characterized in that, the head of the gun barrel (2) is provided with a gun head connecting thread (1), which can be connected with a centralized or flower sprinkler head. 8. A pistol-type laboratory working fluid spray gun according to claim 1, characterized in that the sliding needle (27) is made of conductive metal, and is in interference fit and moving contact with the sliding resistance coil (28). 9. A pistol-type laboratory working fluid spray gun according to claim 1, characterized in that an indicator light (4) is mounted on the barrel (2), and the indicator light is connected in parallel with the motor (7); The electric wires at both ends of the indicator light enter the handle (14) and the chamber (10), and are respectively connected with the negative pole of the power supply (13) and the left end of the sliding resistance coil (28), and the positive pole of the power supply (13) is connected with the sliding needle (27). power switch (12) in series. 10. A pistol-type laboratory working fluid spray gun according to claim 1, characterized in that a leak-proof gasket (6) is provided at the connection between the motor (7) and the rear end of the gun barrel.