Aviation kerosene cleaning device

Abstract

The utility model relates to the field of aviation cleaning, and discloses an aviation kerosene cleaning device which comprises a shell, the inner wall of the shell is fixedly connected with a second butt joint pipe, the outer portion of the second butt joint pipe is detachably connected with a second connecting ring, the inner wall of the second connecting ring is detachably connected with a valve pipe, and the inner wall of the valve pipe is fixedly connected with a buffer pipe. A rotating assembly for limiting backflow of sewage is fixedly connected to the exterior of the buffer pipe, a connecting block is fixedly connected to the front side of the rotating assembly, a rotating groove is formed in the inner wall of the valve pipe, a water passing groove is formed in the inner wall of the valve pipe, a first connecting ring is detachably connected to the inner wall of the valve pipe, and a second connecting ring is detachably connected to the inner wall of the valve pipe. The exterior of the second connecting ring and the exterior of the first connecting ring are each fixedly connected with two connecting plates. According to the aviation kerosene cleaning device, the effect that sewage is smoothly drained from the drainage pipeline is achieved, and the problem that the aviation kerosene cleaning efficiency is low due to the fact that waste water drained from the interior flows back when being drained is solved.

Description

Technical Field

[0001] The utility model relates to the field of aviation cleaning lines, in particular to an aviation kerosene cleaning device. Background Art

[0002] A jet fuel cleaning system is a device specifically designed to clean jet fuel (or aviation fuel). It primarily removes impurities, particles, moisture, and contaminants from the fuel, ensuring its purity before it enters the engine. This system typically includes filters, water separators, and other purification technologies to prevent contaminants from damaging aircraft engines, improving fuel combustion efficiency and engine reliability.

[0003] In the prior art, some devices clean kerosene through a water separator, and the cleaned sewage and oil are transmitted through different pipes. However, when affected by external forces during the transmission process, the sewage will flow back into the water separator, resulting in low cleaning efficiency and the need for repeated cleaning. Therefore, an aviation kerosene cleaning device is proposed. Utility Model Content

[0004] The aviation kerosene cleaning device proposed in the utility model aims to improve the problem that when cleaning aviation kerosene, sewage in a pipeline will flow back, causing secondary pollution to the aviation kerosene.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] The aviation kerosene cleaning device includes an outer shell, the inner wall of which is fixedly connected to a second butting pipe, the outside of which is detachably connected to a second connecting ring, the inner wall of which is detachably connected to a valve pipe, the inner wall of the valve pipe is fixedly connected to a buffer pipe, the outside of the buffer pipe is fixedly connected to a rotating component for limiting sewage backflow, the front side of the rotating component is fixedly connected to a connecting block, the bottom of the connecting block is fixedly connected to a baffle, the inner wall of the valve pipe is provided with a rotating groove, the inner wall of the valve pipe is provided with a water groove, the inner wall of the valve pipe is detachably connected to a connecting ring, the outside of the connecting ring 2 and the outside of the connecting ring 1 are both fixedly connected to two connecting plates, the inner wall of the connecting plate is rotatably connected to a bolt 1, the outside of the butting pipe 2 is fixedly connected to a water distributor, the right side of the water distributor is fixedly connected to a water outlet pipe, and the inner wall of the connecting ring 1 is detachably connected to a butting pipe 1.

[0007] The above technical solution can be enhanced with an automated cleaning system to regularly clean the buffer tube and valve tube interior to prevent dirt accumulation, thereby improving the cleaning efficiency and service life of the device. Furthermore, adding sensors and control units to monitor and adjust the system's operating status in real time can further enhance the system's intelligence and ensure more precise operation and maintenance.

[0008] As a further description of the above technical solution:

[0009] The rotating assembly includes a motor, an output end of the motor is fixedly connected to a rotating shaft, and an exterior of the motor is fixedly connected to an exterior of the buffer tube.

[0010] In the above technical solution, the addition of a motor-driven rotating assembly improves the automation level and operational efficiency of the rotating assembly. The motor enables efficient and stable rotation of the rotating shaft, thereby more effectively controlling the flow of wastewater and preventing backflow. This design not only enhances the system's cleaning capacity but also reduces the need for manual operation, enhancing the reliability and ease of maintenance of the entire device.

[0011] As a further description of the above technical solution:

[0012] The top of the water distributor is fixedly connected to a conical conveyor, the inner wall of the shell is fixedly connected to a hollow plate, the inner wall of the hollow plate is slidably connected to a filter plate, and the outside of the shell is fixedly connected to an opening and closing component that provides sealing capability.

[0013] In this technical solution, the introduction of a tapered conveyor optimizes wastewater distribution and improves flow uniformity. The hollow plate and sliding filter plate design enhance filtration efficiency and facilitate replacement and cleaning. The sealing provided by the opening and closing assembly effectively prevents leakage and external contamination, enhancing the system's sealing and stability, thereby improving the overall performance and ease of maintenance.

[0014] As a further description of the above technical solution:

[0015] The opening and closing assembly includes a fixed block 1, the inner wall of the fixed block 1 is rotatably connected to a rotating block, the outside of the rotating block is fixedly connected to a leak-proof block, the inner wall of the leak-proof block is threadedly connected to a bolt 2, the outside of the bolt 2 is threadedly connected to the inner wall of the outer shell, and the outside of the fixed block 1 is fixedly connected to the outside of the outer shell.

[0016] In this technical solution, the introduction of a rotating block and a leak-proof block enhances the sealing performance of the opening and closing assembly. The rotating block allows for more precise opening and closing adjustments, while the leak-proof block, in conjunction with bolt 2, ensures a tight seal, preventing liquid leakage. This structure improves the system's leak-proof performance and operational convenience, while also enhancing the overall sealing and ensuring the long-term stability of the device.

[0017] As a further description of the above technical solution:

[0018] Two heating wires are fixedly connected to the inner wall of the shell, a protective shell 1 is fixedly connected to the bottom of the shell, a top cover is fixedly connected to the top of the shell, clamping holes are provided on the left and right inner walls of the top cover, and a fan is fixedly connected to the inner wall of the protective shell 1.

[0019] In the above technical solution,

[0020] As a further description of the above technical solution:

[0021] The protective shell is slidably connected to the main frame, the outside of the main frame is fixedly connected to a door opening component that provides rotation capability, the front side of the main frame is fixedly connected to a top plate, the bottom of the top plate is fixedly connected to a transmission box, the inner wall of the transmission box is fixedly connected to a telescopic component that provides telescopic capability, and the bottom of the main frame is fixedly connected to a plurality of universal wheels.

[0022] In this technical solution, the introduction of a door assembly and telescopic assembly enhances the operational flexibility and maintenance convenience of Protective Shell 1. The door assembly provides convenient access, while the telescopic assembly adjusts the position and height of Protective Shell 1 to facilitate adaptation to various working environments. The universal wheel design makes the main frame more flexible and stable, enhancing the device's maneuverability, operating comfort, and overall efficiency.

[0023] As a further description of the above technical solution:

[0024] The door opening assembly comprises a hinge, one end of the hinge is fixedly connected to the outside of the main frame, and the outside of the hinge is fixedly connected to a ventilation plate.

[0025] In the above technical solution, the combined design of hinges and breathable panels enhances the ventilation of protective housing 1. The breathable panels allow air circulation, preventing internal heat buildup and improving the heat dissipation performance of the equipment. Furthermore, the hinge design facilitates smoother operation of the door assembly, facilitating maintenance and inspection, and enhancing the overall functionality and ease of use of the system.

[0026] As a further description of the above technical solution:

[0027] The telescopic assembly includes a sliding plate, the inner wall of the sliding plate is provided with a sliding groove, the top of the sliding plate is fixedly connected to an electric push rod, the driving end of the electric push rod is fixedly connected to a second fixed block, the bottom of the second fixed block is fixedly connected to a cylinder, the driving end of the cylinder is fixedly connected to a connecting cover, the inner wall of the connecting cover is fixedly connected to two pneumatic cylinder blocks, and the outside of the sliding plate is fixedly connected to the bottom inner wall of the transmission box.

[0028] In the above technical solution, the design of the telescopic assembly improves adjustment accuracy and stability. The combination of the electric push rod and pneumatic cylinder provides precise telescopic control, while the sliding plate and sliding groove ensure smooth movement. The fixed connection of the pneumatic cylinder block increases the stability and reliability of the device, preventing loosening or displacement of the components during operation. This structure improves the operational flexibility and stability of the equipment, enhances adaptability, and facilitates maintenance.

[0029] The utility model has the following beneficial effects:

[0030] 1. In this utility model, the kerosene is poured into the filter plate by opening the top cover for filtration, and then

[0031] Existing technology cleans the kerosene inside the water separator. By activating a rotating assembly, the connecting block drains wastewater through a water channel inside the valve tube until only kerosene remains in the water separator. The remaining cleaned kerosene is then discharged through the outlet pipe. This structure ensures smooth drainage of wastewater from the drainage pipe, resolving the issue of internal wastewater backflow during discharge, which can lead to inefficient kerosene cleaning.

[0032] 2. In this utility model, the connecting cover is lowered by contracting the assembly and the cylinder. The cylinder is activated to pull the device upward, opening it. Contaminants accumulated on the filter plate can be removed by turning the second disassembly bolt to open the leak-proof block, allowing the filter plate to be removed for cleaning. The heater wire is then heated to the appropriate temperature before the fan is turned on. The fan transmits the heat generated by the heater wire through wind power. This structure improves the efficiency of kerosene cleaning and prevents condensation caused by the influence of external temperature on the kerosene, thereby enhancing the practicality of the device and improving the fault tolerance rate during kerosene cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] FIG1 is a perspective view of the aviation kerosene cleaning device proposed in the present invention;

[0034] FIG2 is a schematic diagram of the electric push rod structure of the aviation kerosene cleaning device proposed in the present invention;

[0035] FIG3 is a cross-sectional view of the top cover structure of the aviation kerosene cleaning device proposed in the present invention;

[0036] FIG4 is a cross-sectional view of the valve pipe structure of the aviation kerosene cleaning device proposed in the present invention;

[0037] FIG5 is a cross-sectional view of the water separator structure of the aviation kerosene cleaning device proposed in the present invention;

[0038] FIG6 is a schematic diagram of the telescopic block structure of the aviation kerosene cleaning device proposed in the present invention;

[0039] FIG7 is a schematic diagram of the valve pipe structure of the aviation kerosene cleaning device proposed in the present invention;

[0040] Figure 8 is an enlarged view of point A in Figure 4;

[0041] FIG9 is a schematic diagram of the connection block structure of the aviation kerosene cleaning device proposed in FIG6 .

[0042] Legend:

[0043] 1. Housing; 2. Valve tube; 3. Motor; 4. Buffer tube; 5. Connecting block; 6. Rotating groove; 7.

[0044] Water trough; 8. Connecting ring 1; 9. Connecting plate; 10. Bolt 1; 11. Water distributor; 12. Water outlet pipe; 13. Conical conveyor; 14. Hollow plate; 15. Filter plate; 16. Fixed block 1; 17. Rotating block; 18. Bolt 2; 19. Leak-proof block; 20. Heating wire; 21. Protective shell 1; 22. Fan; 23. Top cover; 24. Connecting cover; 25. Electric push rod; 26. Top plate; 27. Transmission box; 28. Cylinder; 29. ​​Hinge; 30. Universal wheel; 31. Breathable plate; 32. Rotating shaft; 33. Main frame; 34. Pneumatic cylinder block; 35. Butt joint 1; 36. Sliding plate; 37. Sliding groove; 38. Butt joint 2; 39. Connecting ring 2; 40. Clamping hole; 41. Fixed block 2; 42. Baffle DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0046] Referring to Figures 3, 4 and 7, an embodiment of the present invention is provided: an aviation kerosene cleaning device, comprising an outer shell 1, which ensures the safety and stability of the internal components. The inner wall of the outer shell 1 is fixedly connected with a butt-joint pipe 2 38, which is used to connect to the external piping system, and can be disassembled and replaced by rotating a connecting ring 2 39. The outside of the butt-joint pipe 2 38 is detachably connected with a connecting ring 2 39, which provides the disassembly and installation functions of the valve pipe 2, allowing the valve pipe 2 to be maintained and replaced. The inner wall of the connecting ring 2 39 is detachably connected with the valve pipe 2. To control the flow of aviation kerosene, a buffer tube 4 is provided inside to reduce flow impact and noise. The connecting ring 1 8 and the connecting ring 2 39 can be removed by rotating the bolt 10, thereby disassembling and connecting the valve pipe 2, and then the connecting ring 1 8 and the connecting ring 2 39 are rotated and connected on both sides of the valve pipe 2, and the bolt 10 is turned to clamp the connecting ring 1 8 and the connecting ring 2 39 on both sides of the valve pipe 2;

[0047] A buffer tube 4 is fixedly connected to the inner wall of the valve tube 2. This cushioning effect reduces impact during liquid flow and improves the stability of the device. A rotating assembly that limits sewage backflow is fixedly connected to the outside of the buffer tube 4. This mechanism ensures system cleanliness and proper function. A connecting block 5 is fixedly connected to the front of the rotating assembly, working in conjunction with the rotating assembly to ensure the device's tightness and stability. A rotating groove 6 is defined on the inner wall of the valve tube 2, providing space for the components within the valve tube 2 to rotate smoothly. A water channel 7 is also defined on the inner wall of the valve tube 2, allowing aviation kerosene to flow smoothly within the valve tube 2 and avoiding flow resistance. A connecting ring 1 8 is detachably connected to the inner wall of the valve tube 2, connecting to the butt joint 1 35, enabling quick assembly and disassembly of the assembly. Two connecting plates 9 are fixedly attached to the exterior of both connecting ring 2 39 and connecting ring 1 8, enhancing the securement of the connecting rings and ensuring the stability of the assembly during operation. Bolt 10 is rotatably connected to the inner wall of connecting plate 9, providing additional stability. A water distributor 11 is fixedly connected to the exterior of butt joint 2 (38), ensuring that varying flow requirements are met. An outlet pipe 12 is fixedly connected to the right exterior of water distributor 11, transferring kerosene processed by water distributor 11. Butt joint 35 is detachably connected to the interior of connecting ring 1 (8).

[0048] Referring to Figures 3, 8, and 9, the rotating assembly includes a motor 3, which provides rotational force and transmits this power to other components via a rotating shaft 32. The output end of motor 3 is fixedly connected to rotating shaft 32, and the exterior of motor 3 is fixedly connected to the exterior of buffer tube 4. A conical conveyor 13 is fixedly connected to the top of water distributor 11, helping to guide the flow of materials or fluids and evenly distribute the fluid to various parts of the device. A hollow plate 14 is fixedly connected to the inner wall of hollow plate 14, and a filter plate 15 is slidably connected to the inner wall of hollow plate 14. This allows the filter plate 15 to be moved in and out of the hollow plate 14 as needed to filter or separate solid particles from the fluid. An opening and closing assembly is fixedly connected to the exterior of housing 1, providing sealing capabilities. A baffle 42 is fixedly connected to the bottom of connecting block 5. Baffle 42 is designed to open and close the interior of water channel 7.

[0049] Referring to Figures 3, 5, and 8, the opening and closing assembly includes a fixed block 16. The inner wall of fixed block 16 is rotatably connected to a rotating block 17. A leak-proof block 19 is fixedly connected to the outer wall of rotating block 17. Bolt 2 18 is threadedly connected to the inner wall of leak-proof block 19, enabling the opening and closing of housing 1. The structural design of fixed block 16 and rotating block 17 enables leak-proof block 19 to be sealed or released under the control of bolt 2 18, ensuring the sealing performance of the device. The outer surface of bolt 2 18 is threadedly connected to the inner wall of housing 1, while the outer surface of fixed block 16 is fixedly connected to the outer surface of housing 1. Two heating wires 20 are fixedly connected to the inner wall of housing 1 to provide heat. A protective shell 21 is fixedly connected to the bottom of housing 1, and a top cover 23 is fixedly connected to the top of housing 1. Clamping holes 40 are defined on both the left and right inner walls of top cover 23. A fan 22 is fixedly connected to the inner wall of protective shell 21. Used to dissipate heat or transfer appropriate heat to ensure that the equipment does not overheat during the heating process, thereby improving the safety and operational stability of the equipment.

[0050] Referring to Figures 1, 2, and 6, the sliding connection of the protective shell 21 is connected to the main frame 33, which provides a support and stable foundation. Its design needs to ensure sufficient strength and durability to withstand the influence of external forces. The outside of the main frame 33 is fixedly connected to a door opening component that provides rotation capability, including a hinge 29 and a breathable plate 31. The hinge 29 allows the door portion of the protective shell to be opened flexibly, and the breathable plate 31 provides air circulation to prevent the equipment from overheating or moisture accumulation inside. The front side of the main frame 33 is fixedly connected to the top plate 26, and the bottom of the top plate 26 is fixedly connected to the transmission box 27. The top plate 26 protects the upper part of the equipment from direct collisions with external objects. The transmission box 27 has a built-in telescopic component, which consists of a sliding plate 36, an electric push rod 25, a fixed block 41, a cylinder 28, a connecting cover 24, and a pneumatic cylinder block 34. The electric push rod 25 is responsible for driving the telescopic process, and the sliding groove 37 on the sliding plate 36 ensures smooth sliding;

[0051] The pneumatic cylinder 28 and connecting cover 24 enhance structural stability, while the pneumatic cylinder block 34 provides additional support and anchoring within the telescopic assembly, ensuring precise positioning and operation of the device. This allows the opening of the protective shell to be adjusted as needed, providing flexible operation. The inner wall of the transmission box 27 is fixedly connected to the telescopic assembly, providing telescopic capabilities. Multiple universal wheels 30 are fixedly connected to the bottom of the main frame 33. These wheels allow the protective shell to be flexibly moved in different directions, enhancing ease of use.

[0052] The door opening assembly includes a hinge 29, one end of which is fixedly connected to the outside of the main frame 33, and the outside of the hinge 29 is fixedly connected to a breathable plate 31. The telescopic assembly includes a sliding plate 36, and the inner wall of the sliding plate 36 is provided with a sliding groove 37. The top of the sliding plate 36 is fixedly connected to the electric push rod 25, and the driving end of the electric push rod 25 is fixedly connected to the fixed block 2 41. The bottom of the fixed block 2 41 is fixedly connected to the cylinder 28, and the driving end of the cylinder 28 is fixedly connected to the connecting cover 24. The inner wall of the connecting cover 24 is fixedly connected to two pneumatic cylinder blocks 34. The outside of the sliding plate 36 is fixedly connected to the bottom inner wall of the transmission box 27.

[0053] Compared with some devices in the prior art, the above content improves the cleaning efficiency and discharge rigor of the device and prevents the condensation problem of kerosene caused by the influence of external temperature.

[0054] Working principle: The operator first fixes the outer shell 1 to the main frame 33 through the protective shell 21, and then starts the retraction component to move the connecting cover 24 to the position corresponding to the top of the top cover 23, and starts the cylinder 28 to make the connecting cover 24 drop. Because the connecting cover 24 contains a pneumatic cylinder block 34, which has an automatic retraction function, when the connecting cover 24 drops to the outside of the top cover 23, the pneumatic cylinder block 34 is started, and the pneumatic cylinder block 34 can be extended to clamp the clamping holes 40 opened on both sides of the top cover 23. Conversely, by retracting the pneumatic cylinder block 34, the top cover 23 can be dropped. Then start the cylinder 28 and pull it upward, and the kerosene that needs to be cleaned is accurately poured into the water separator 11 through the filter plate 15 and the conical conveyor 13 for cleaning. The pollutants accumulated on the filter plate 15 can be removed by turning the second disassembly bolt 18 to open the leak-proof block 19, so that the filter plate 15 can be pulled out for cleaning. When affected by the external temperature, start the heating wire 20 to heat it to a suitable temperature and then turn on the fan 22. The wind transmitted by the fan 22 transfers the heat generated by the heating wire 20 to prevent the kerosene that needs to be cleaned from solidifying.

[0055] After the kerosene inside the water separator 11 is cleaned, the water and kerosene will stand still and form stratification to prevent the wastewater from flowing back when it is discharged. By starting the rotating component, the connecting block 5 can discharge the wastewater through the water channel 7 opened inside the valve pipe 2 until only kerosene remains in the water separator 11. The remaining cleaned kerosene is discharged through the outlet pipe 12.

[0056] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An aviation kerosene cleaning device comprising a housing (1), characterized in that: The inner wall of the housing (1) is fixedly connected to a second butt-joint pipe (38), the outer portion of the second butt-joint pipe (38) is detachably connected to a second connecting ring (39), the inner wall of the second connecting ring (39) is detachably connected to a valve pipe (2), the inner wall of the valve pipe (2) is fixedly connected to a buffer pipe (4), the outer portion of the buffer pipe (4) is fixedly connected to a rotating assembly for limiting sewage backflow, the front side of the rotating assembly is fixedly connected to a connecting block (5), the bottom of the connecting block (5) is fixedly connected to a baffle (42), and the inner wall of the valve pipe (2) is provided with a rotating groove (6 ), the inner wall of the valve tube (2) is provided with a water groove (7), the inner wall of the valve tube (2) is detachably connected to a connecting ring (8), the outside of the connecting ring (2) (39) and the outside of the connecting ring (8) are fixedly connected to two connecting plates (9), the inner wall of the connecting plate (9) is rotatably connected to a bolt (10), the outside of the butt joint pipe (2) (38) is fixedly connected to a water distributor (11), the right side of the outside of the water distributor (11) is fixedly connected to a water outlet pipe (12), and the inner wall of the connecting ring (8) is detachably connected to a butt joint pipe (35).

2. The aviation kerosene cleaning device according to claim 1, characterized in that: The rotating assembly comprises a motor (3), the output end of the motor (3) is fixedly connected to a rotating shaft (32), and the exterior of the motor (3) is fixedly connected to the exterior of the buffer tube (4).

3. The aviation kerosene cleaning device according to claim 1, characterized in that: The top of the water distributor (11) is fixedly connected to a conical conveyor (13), the inner wall of the shell (1) is fixedly connected to a hollow plate (14), the inner wall of the hollow plate (14) is slidably connected to a filter plate (15), and the outside of the shell (1) is fixedly connected to an opening and closing component that provides a sealing capability.

4. The aviation kerosene cleaning device according to claim 3, characterized in that: The opening and closing assembly includes a fixed block (16), the inner wall of the fixed block (16) is rotatably connected to a rotating block (17), the outer portion of the rotating block (17) is fixedly connected to a leak-proof block (19), the inner wall of the leak-proof block (19) is penetrated by a bolt (18), the outer portion of the bolt (18) is threadedly connected to the inner wall of the outer shell (1), and the outer portion of the fixed block (16) is fixedly connected to the outer portion of the outer shell (1).

5. The aviation kerosene cleaning device according to claim 3, characterized in that: Two heating wires (20) are fixedly connected to the inner wall of the shell (1), a protective shell (21) is fixedly connected to the bottom of the shell (1), a top cover (23) is fixedly connected to the top of the shell (1), clamping holes (40) are provided on the left and right inner walls of the top cover (23), and a fan (22) is fixedly connected to the inner wall of the protective shell (21).

6. The aviation kerosene cleaning device according to claim 5, characterized in that: The protective shell (21) is slidably connected to a main frame (33), the exterior of the main frame (33) is fixedly connected to a door opening assembly providing rotation capability, the front side of the main frame (33) is fixedly connected to a top plate (26), the bottom of the top plate (26) is fixedly connected to a transmission box (27), the inner wall of the transmission box (27) is fixedly connected to a telescopic assembly providing telescopic capability, and the bottom of the main frame (33) is fixedly connected to a plurality of universal wheels (30).

7. The aviation kerosene cleaning device according to claim 6, characterized in that: The door opening assembly comprises a hinge (29), one end of the hinge (29) is fixedly connected to the outside of the main frame (33), and the outside of the hinge (29) is fixedly connected to a ventilation plate (31).

8. The aviation kerosene cleaning device according to claim 6, characterized in that: The telescopic assembly includes a sliding plate (36), the outside of the sliding plate (36) is fixedly connected to the bottom inner wall of the transmission box (27), the inner wall of the sliding plate (36) is provided with a sliding groove (37), the top of the sliding plate (36) is fixedly connected to an electric push rod (25), the driving end of the electric push rod (25) is fixedly connected to a second fixed block (41), the bottom of the second fixed block (41) is fixedly connected to a cylinder (28), the driving end of the cylinder (28) is fixedly connected to a connecting cover (24), and the inner wall of the connecting cover (24) is fixedly connected to two pneumatic cylinder blocks (34).

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