Vehicle-mounted quick pneumatic wrench

Abstract

The utility model relates to the technical field of pneumatic wrenches, in particular to a vehicle-mounted quick pneumatic wrench, which comprises an air storage tank, an automatic pipe coiling device and a pneumatic wrench, the automatic pipe coiling device is fixedly mounted on the outer side of a frame, a switch valve is mounted on an air outlet of the air storage tank, and a rotary joint is mounted at one end of a central rotary shaft of the automatic pipe coiling device. The air inlet end of the rotary connector is connected with the switch valve through an air conveying hose, a telescopic hose is wound on the automatic pipe winding device in a retractable mode, the fixed end of the telescopic hose is communicated with the air outlet end of the rotary connector, and the free end of the telescopic hose is connected with the pneumatic wrench in a sealed and inserted mode. According to the vehicle-mounted quick pneumatic wrench, compressed air stored in an air storage tank of a vehicle serves as a power source, a pneumatic wrench is additionally arranged for the vehicle, the maintenance operation of quickly disassembling and assembling tire screws when the spare tire of the vehicle is replaced is facilitated, the replacement speed of the spare tire of the vehicle is increased, and the requirement for quickly disassembling and replacing the tire anytime and anywhere is met.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of pneumatic wrench, specifically relates to a vehicle-mounted quick pneumatic wrench. BACKGROUND

[0002] The pneumatic wrench is a torque wrench taking compressed air as a power source, can provide larger torque output with smaller air source consumption, is often applied to the maintenance and replacement of vehicle tires, is commonly called air gun, is mainly used as a quick impact wrench for disassembling tire screws, and can greatly improve the disassembling speed of vehicle tires. However, since the power source of the air gun usually needs a high-pressure air pump (or air compressor) to provide compressed air, the existing pneumatic wrench is generally installed in a maintenance station, and if a vehicle encounters a tire burst or puncture and needs to be replaced and maintained on the road, the convenience of using the air gun is limited, and a traditional wrench still needs to be used to disassemble the tire manually, which seriously affects the maintenance efficiency of the spare tire replacement. Especially when the military heavy truck is in the field operation, the vehicle tire failure is more likely to occur, and due to the particularity of the vehicle use, the timeliness of the spare tire replacement needs to be paid special attention to, so it is necessary to design a quick pneumatic wrench which can be conveniently carried with the vehicle. In addition, the truck generally adopts a "air brake" parking brake system, and the vehicle itself is equipped with a gas tank for storing compressed air, which also lays a good foundation for the installation and design of the vehicle-mounted pneumatic wrench. SUMMARY

[0003] In view of the above problems, the utility model provides a vehicle-mounted quick pneumatic wrench, which is installed on the vehicle on the basis of the existing vehicle carrying the gas tank, and can meet the needs of the vehicle for quick disassembling and replacing the spare tire at any time and anywhere.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A vehicle-mounted quick pneumatic wrench, comprising a vehicle frame, a gas tank, an automatic pipe reel and an air gun wrench, the automatic pipe reel is fixedly installed on the outer side of the vehicle frame, a switch valve is installed on the gas outlet of the gas tank, a rotary joint is installed at one end of the central rotating shaft of the automatic pipe reel, the air inlet end of the rotary joint is connected with the switch valve through a gas conveying hose, a telescopic hose is wound on the automatic pipe reel, the fixed end of the telescopic hose is connected with the air outlet end of the rotary joint in communication, and the free end of the telescopic hose is sealingly inserted into the air gun wrench.

[0006] Further, the automatic pipe reel comprises a base frame and a pipe reel, the base frame is fixedly connected with the outer side wall of the vehicle frame through fixing screws, two supporting cantilevers are symmetrically arranged on the side of the base frame, and the pipe reel is rotatably arranged between the two supporting cantilevers through a central rotating shaft.

[0007] Further, the center rotating shaft is a hollow shaft structure, one end of the center rotating shaft is provided with an air inlet, a rotary joint is installed on the air inlet, and the other end of the center rotating shaft is provided with a sealing plug.

[0008] Further, the center rotating shaft is a hollow shaft structure, one end of the center rotating shaft is provided with an air inlet, a rotary joint is installed on the air inlet, and the other end of the center rotating shaft is provided with a sealing plug.

[0009] Further, the center rotating shaft is a hollow shaft structure, one end of the center rotating shaft is provided with an air inlet, a rotary joint is installed on the air inlet, and the other end of the center rotating shaft is provided with a sealing plug.

[0010] Further, the center rotating shaft is a hollow shaft structure, one end of the center rotating shaft is provided with an air inlet, a rotary joint is installed on the air inlet, and the other end of the center rotating shaft is provided with a sealing plug.

[0011] The utility model further includes other components that enable normal use, which are conventional means in the field, and in addition, devices or components not specified in the utility model, such as the frame of the vehicle, the gas tank, and the automatic pipe winder, the rotary joint, and the air gun wrench, all use existing technology in the field.

[0012] The utility model has the advantages of the following:

[0013] The vehicle-mounted rapid pneumatic wrench provided by the utility model, on the basis of the existing large truck, uses the compressed air reserved by the gas tank of the vehicle as a power source, and adds the air gun wrench to the vehicle, which is beneficial to the maintenance operation of quickly disassembling and assembling the tire screws when the vehicle replaces the spare tire, improves the replacement speed of the spare tire of the vehicle, and meets the demand of quickly disassembling and assembling the tire at any time and anywhere. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is an installation structure schematic view of the vehicle-mounted rapid pneumatic wrench in the embodiment.

[0015] Figure 2 It is a plane structure schematic view of the automatic pipe winder along A-A direction in the embodiment. Figure 1

[0016] It is a three-dimensional structure schematic view of the automatic pipe winder in the embodiment. Figure 3 Figure 2 Specific implementation

[0017] ​​The technical solution of this utility model will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0018] It should be noted that the terms "upper," "lower," "inner," and "outer," which indicate direction or positional relationship, are based on the attached drawings and are used only for ease of description.

[0019] Example

[0020] like Figures 1-3 As shown, a vehicle-mounted quick-operated pneumatic wrench includes a vehicle frame 1 and an air tank 2. The vehicle, its frame, and the air tank all utilize existing technology, and their specific configurations will not be detailed here. Based on existing vehicles, the vehicle-mounted quick-operated pneumatic wrench also includes a newly added automatic hose reel 3 and an air wrench 4. The automatic hose reel is fixedly installed on the outside of the frame. A switch valve 5 is installed on the air outlet of the air tank. The central shaft of the automatic hose reel is a hollow shaft structure, with an air inlet at one end. A rotary joint 6 is installed on the air inlet, and a sealing plug is installed at the other end of the central shaft. The air inlet end of the rotary joint is connected to the switch valve via an air hose 7.

[0021] The switch valve is a manually controlled valve, and the air supply hose is a high-pressure air hose. When a pneumatic wrench is needed, the valve is manually opened to allow the air tank to supply air. When the pneumatic wrench is not needed, the valve is closed to prevent compressed air leakage from the air tank, which would waste power and reduce air pressure, thereby avoiding unnecessary safety hazards to the vehicle's "air brake" system.

[0022] The automatic hose reel can wind and unwind a telescopic hose 8. An air outlet is provided on the side wall of the central rotating shaft, and an air connector 9 is installed on the air outlet. The fixed end of the telescopic hose is sealed and connected to the air connector. An air outlet connector is installed on the free end of the telescopic hose, and the pneumatic wrench is detachably and sealed to the air outlet connector.

[0023] When the pneumatic wrench is not in use, it can be removed and stored in the toolbox 10 for better protection. The internal structure of the pneumatic wrench is the same as that of the pneumatic wrench disclosed in patent document CN108214384B. The pneumatic wrench uses existing technology, and its specific configuration will not be described in detail here.

[0024] The automatic hose reel includes a base frame 31 and a hose reel 32. The base frame is fixedly connected to the outer wall of the vehicle frame by fixing screws 33. Two support cantilever arms 34 are symmetrically arranged on the side of the base frame. The hose reel is rotatably mounted between the two support cantilever arms via a central pivot.

[0025] The automatic pipe winder further comprises components such as a ratchet wheel 35, a pawl 36 and a return spring 37 for controlling the winding drum to realize the advancing, stopping and retracting actions, and the pipe winder is further provided with a pipe arranging mechanism composed of a guide rod 38 and a pipe arranging frame 39, and the specific arrangement of the pipe winder is basically the same as that of the water and gas pipe automatic winder disclosed in the patent document with the publication number CN210064742U, which is prior art and will not be described in detail here.

[0026] The technical scheme of the utility model is not limited to the above specific embodiments, and many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments, and any technical modification made within the spirit and principle of the utility model falls within the protection scope of the utility model.

Claims

1. A vehicle-mounted quick pneumatic wrench, comprising a vehicle frame and a gas storage tank, characterized in that: The automatic pipe coiling device and the air gun wrench are also included, the automatic pipe coiling device is fixedly installed on the outer side of the frame, a switch valve is installed on the gas outlet of the gas tank, a rotary joint is installed on one end of the central rotating shaft of the automatic pipe coiling device, the gas inlet end of the rotary joint is connected with the switch valve through a gas conveying hose, a telescopic hose is wound on the automatic pipe coiling device, the fixed end of the telescopic hose is connected with the gas outlet end of the rotary joint, and the free end of the telescopic hose is sealingly inserted into the air gun wrench.

2. The vehicle-mounted quick pneumatic wrench according to claim 1, characterized in that: The automatic pipe coiling device includes a base frame and a pipe coiling disc, the base frame is fixedly connected with the outer side wall of the frame through fixing screws, two supporting cantilevers are symmetrically arranged on the side of the base frame, and the pipe coiling disc is rotatably arranged between the two supporting cantilevers through a central rotating shaft.

3. The vehicle-mounted quick pneumatic wrench according to claim 2, characterized in that: The central rotating shaft is a hollow shaft structure, one end of the central rotating shaft is provided with a gas inlet, a rotary joint is installed on the gas inlet, and the other end of the central rotating shaft is provided with a sealing plug.

4. The quick pneumatic wrench for vehicle according to claim 3, characterized in that: An air outlet is arranged on the side wall of the central rotating shaft, a gas joint is installed on the air outlet, and the fixed end of the telescopic hose is sealingly inserted into the gas joint.

5. The vehicle-mounted quick pneumatic wrench of claim 1, wherein: An air outlet joint is installed on the free end of the telescopic hose, and the air gun wrench is sealingly and detachably inserted into the air outlet joint.

6. The vehicle-mounted quick pneumatic wrench of claim 1, wherein: The switch valve is a manually controlled valve, and the gas conveying hose is a high-pressure gas pipe.

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