A high-pressure water gun rust removal device for maintenance

Abstract

This application discloses a high-pressure water gun rust removal device for maintenance, relating to the field of heavy machinery maintenance technology. It includes a base plate, a pressure pump, an inlet pipe, a transmission component, and a nozzle component. The base plate is slidably mounted on the ground, the pressure pump is fixedly mounted on the base plate, one end of the inlet pipe is fixedly connected to the pressure pump, and the other end of the inlet pipe is placed in a water tank. The transmission component is slidably mounted on the base plate and can control the water outlet height. The nozzle component is rotatably mounted on the transmission component and can control the direction and angle of the water outlet. This application has the effect of improving the efficiency of high-pressure water guns in rust removal from mining equipment.

Description

Technical Field

[0001] This application relates to the field of heavy machinery maintenance technology, and in particular to a high-pressure water gun rust removal device for maintenance. Background Technology

[0002] Heavy mining machinery is prone to rust buildup on its surface during long-term use. Rust severely affects the operating efficiency and service life of mining machinery, so regular rust removal and maintenance of mining machinery is crucial.

[0003] A related high-pressure water gun rust removal device consists of a base plate, a water supply pump, a water pipe, and a nozzle. When rust removal is required on mining machinery, the water supply pump is started, which raises the water pressure to a preset value. The high-pressure water is then delivered to the nozzle through the water pipe, and the nozzle sprays the high-pressure water into a jet. At this time, the operator holds the nozzle and sprays it at the rusted area. The high-pressure water jet impacts the rust layer, causing it to fall off and achieving the purpose of rust removal.

[0004] During the rust removal process using the above-mentioned device, due to the limited height that operators can reach, when the rusted area to be removed is high, the impact force of the water flow on the rusted area is insufficient, resulting in low rust removal efficiency. Utility Model Content

[0005] In order to improve the efficiency of high-pressure water guns in removing rust from mining equipment, this application provides a high-pressure water gun rust removal device for maintenance.

[0006] This application provides a high-pressure water gun for rust removal during maintenance, employing the following technical solution: A high-pressure water gun rust removal device for maintenance includes: A base plate, which is slidably mounted on the ground; A pressure water pump is fixedly mounted on the base plate; A water inlet pipe, one end of which is fixedly connected to the pressure pump, and the other end of which is placed inside the water tank; A transmission component, which is slidably mounted on the base plate, is capable of controlling the height of the water outlet; A nozzle component is rotatably mounted on the transmission component, and the nozzle component can control the direction and angle of water output.

[0007] By adopting the above technical solution, when rust removal is required on mining equipment, the equipment is placed on the ground. The position of the base plate is adjusted so that the nozzle is directly facing the rusted area. The pressure water pump is then activated. After starting, the pump draws water through the inlet pipe. The water pressure increases after passing through the pump, forming a high-pressure water jet that is ejected from the nozzle. This high-pressure water jet knocks off the rust from the mining equipment. The transmission mechanism is then activated, moving the nozzle up and down to ensure that the high-pressure water jet removes rust at different heights. If the surface of the mining equipment is curved, a direct high-pressure water jet may not effectively remove rust from the curved areas. In this case, the nozzle can be rotated to adjust the direction and angle of the high-pressure water jet, ensuring that it remains perpendicular to the rusted surface of the mining equipment, thus ensuring thorough removal of rust from the curved areas. This rust removal method allows the high-pressure water jet to comprehensively remove rust from all parts of the mining equipment, effectively improving rust removal efficiency.

[0008] Optionally, the transmission component includes: A fixing plate, which is fixedly mounted on the base plate; The first motor is fixedly mounted on the outer periphery of the fixed plate; A bevel gear is rotatably mounted within the fixed plate and is fixedly connected to the output shaft of the first motor. A threaded rod is rotatably disposed within the fixed plate and is fixedly connected to the bevel gear; A transmission rod, wherein the threaded rod is sleeved on the outer circumference of the threaded rod, and the transmission rod is threadedly connected to the threaded rod; A hydraulic telescopic rod, wherein the hydraulic telescopic rod is fixedly installed at the top end of the transmission rod; The first water outlet pipe has one end fixedly connected to the outlet of the pressure pump, and the other end fixedly connected to the nozzle component.

[0009] By adopting the above technical solution, when rust removal is required on mining equipment, the position of the base plate is adjusted and the extension of the hydraulic telescopic rod is controlled so that the nozzle is directly facing the rusted area of ​​the mining equipment. The pressure water pump is then started, converting water into a high-pressure water flow. Under the action of the pump, the high-pressure water flows through the first outlet pipe into the nozzle and is ejected from it, effectively removing the rust from the mining equipment. After the high-pressure water flow is ejected, the first motor is started, driving the bevel gear to rotate. The bevel gear then drives the threaded rod to rotate synchronously. Since the inner circumference of the transmission rod is fixed with a threaded groove matching the threaded rod, the transmission rod moves up and down along the threaded rod after rotation. This movement of the transmission rod drives the hydraulic telescopic rod to move synchronously, which in turn moves the nozzle up and down. This movement of the nozzle allows the high-pressure water flow to effectively remove rust of varying heights from the mining equipment, thus significantly improving the efficiency of rust removal.

[0010] Optionally, the nozzle element includes: A connecting plate is fixedly disposed at the end of the hydraulic telescopic rod away from the transmission rod. A fixed frame is fixedly mounted on the connecting plate; The second motor is fixedly mounted on one side of the fixed frame; The nozzle is rotatably mounted on the fixed frame and is fixedly connected to the output shaft of the second motor. The second water outlet pipe has one end fixedly connected to the end of the first water outlet pipe away from the pressure pump, and the other end fixedly connected to the nozzle.

[0011] By adopting the above technical solution, when rust removal is required on mining equipment, the pressure water pump is started. Once started, the water is converted into a high-pressure stream. After being converted into a high-pressure stream, the water enters the nozzle through the first and second inlet pipes. The high-pressure water stream is then sprayed out from the nozzle, quickly peeling off the rust layer on the mining equipment. If the surface of the mining equipment is curved, a second motor is started. This motor drives the nozzle to rotate, adjusting the direction of the high-pressure water jet to ensure that the high-pressure water stream remains perpendicular to the surface of the mining equipment. This ensures that the force exerted by the high-pressure water stream on the surface of the mining equipment is at its maximum, thereby effectively improving the efficiency of rust removal.

[0012] Optionally, a sand suction pipe is fixedly provided on the outer periphery of the nozzle, one end of the sand suction pipe is connected to the nozzle, and the other end of the sand suction pipe is placed in the sand collection box.

[0013] By adopting the above technical solution, when rust removal is required on the surface of mining equipment, the pressure water pump is started. Water is converted into a high-pressure water flow by the pump, and this high-pressure water flow enters the nozzle through the first and second inlet pipes. Once inside the nozzle, the high-pressure water flow is sprayed out, thus peeling off the rust layer from the surface of the mining equipment. Simultaneously with starting the pressure water pump, one end of the suction pipe is inserted into the sand collection box. Since the other end of the suction pipe is connected to the nozzle, a negative pressure is created inside the nozzle as the high-pressure water flow passes through it at high speed. Under this negative pressure, sand particles enter the nozzle through the suction pipe and are sprayed out with the high-pressure water flow. The sand particles increase the friction when the water flows into the surface of the mining equipment, further enhancing the rust removal effect and thus improving the efficiency of rust removal.

[0014] Optionally, the fixed frame is an L-shaped structure.

[0015] By adopting the above technical solution, the L-shaped fixed frame can ensure that the nozzle will not collide with the connecting plate during the rotation of the second motor, thereby avoiding damage to the nozzle during rotation and effectively improving the stability of the nozzle during rotation.

[0016] Optionally, a filter screen is fixedly installed at the end of the water inlet pipe away from the pressure pump.

[0017] By adopting the above technical solution, when rust removal is required on mining equipment, the pressure water pump is started. Once started, water is drawn into the pump through the inlet pipe. After entering the pump, the water is converted into a high-pressure stream and flows through the first and second water pipes into the nozzle, from where it is discharged. As the water flows into the pump through the inlet pipe, the filter effectively intercepts impurities in the water, preventing them from entering the pump and avoiding blockages or damage. The filter effectively extends the service life of the pressure water pump.

[0018] Optionally, a limiting plate is fixedly provided at the end of the transmission rod away from the hydraulic telescopic rod, and the limiting plate abuts against the inner wall of the fixed plate.

[0019] By adopting the above technical solution, when the nozzle height needs to be adjusted, the first motor is started. After the first motor starts, it drives the bevel gear to rotate, which in turn drives the threaded rod to rotate. Since the transmission rod is threadedly connected to the threaded rod, the transmission rod can move up and down along the threaded rod after it rotates. When the bottom end of the transmission rod moves along the threaded rod to the top of the fixed rod, the limiting plate can abut against the inner wall of the fixed plate, and the transmission rod stops moving under the action of the limiting plate, thus ensuring that the transmission rod will not fall out of the fixed plate. The setting of the limiting plate effectively improves the stability of the transmission rod during movement.

[0020] Optionally, multiple casters are fixedly installed at the bottom of the base plate.

[0021] By adopting the above technical solution, the universal wheels allow the base plate to move flexibly. When it is necessary to adjust the position of the nozzle in the horizontal direction, simply push the base plate lightly, and the base plate can be moved to the designated position under the action of the universal wheels. After the base plate has moved, the universal wheels can be locked. Once the universal wheels are locked, it can be ensured that the base plate will not move during the rust removal process, thereby effectively improving the flexibility and stability of rust removal treatment for mining equipment.

[0022] In summary, this utility model provides a high-pressure water gun rust removal device for maintenance, which includes at least one of the following beneficial technical effects: 1. When rust removal is required on mining equipment, place the equipment on the ground and adjust the base plate so that the nozzle is directly facing the rusted area. Start the pressure water pump. The pump draws water through the inlet pipe, increasing the water pressure and creating a high-pressure water jet that is ejected from the nozzle. This high-pressure water jet knocks off the rust from the mining equipment. Then, activate the transmission mechanism, which moves the nozzle up and down to ensure the high-pressure water jet removes rust from different heights. If the mining equipment surface is curved, a direct high-pressure water jet may not effectively remove rust from curved areas. In this case, rotate the nozzle to adjust the direction and angle of the high-pressure water jet, ensuring it remains perpendicular to the rusted surface and is thoroughly removed. This rust removal method allows the high-pressure water jet to comprehensively remove rust from all parts of the mining equipment, effectively improving rust removal efficiency.

[0023] 2. When rust removal is required on mining equipment, adjust the position of the base plate and extend the hydraulic telescopic rod so that the nozzle is directly facing the rusted area of ​​the mining equipment. Start the pressure water pump, which converts water into a high-pressure stream. This high-pressure water enters the nozzle through the first outlet pipe and is ejected from the nozzle, effectively removing rust from the mining equipment. After the high-pressure water is ejected, start the first motor, which drives the bevel gear to rotate. The bevel gear then drives the threaded rod to rotate synchronously. Because the inner circumference of the transmission rod has a threaded groove that matches the threaded rod, the transmission rod moves up and down along the threaded rod after rotation. This movement of the transmission rod drives the hydraulic telescopic rod to move synchronously, which in turn moves the nozzle up and down. This movement of the nozzle allows the high-pressure water to effectively remove rust at different heights on the mining equipment, thus significantly improving the efficiency of rust removal.

[0024] 3. When rust removal is required on mining equipment, start the pressurized water pump. Once started, the pump converts water into a high-pressure stream. This high-pressure stream then flows through the first and second inlet pipes into the nozzle. The high-pressure water is then sprayed out from the nozzle, quickly peeling away the rust layer on the mining equipment. If the surface of the mining equipment is curved, start the second motor. This motor will rotate the nozzle, allowing you to adjust the direction of the high-pressure water jet. This ensures the high-pressure water stream remains perpendicular to the surface of the mining equipment, maximizing the force exerted by the high-pressure water on the surface and thus effectively improving the efficiency of rust removal. Attached Figure Description

[0025] Figure 1 A schematic diagram of a high-pressure water gun rust removal device for maintenance provided in this embodiment of the utility model; Figure 2 A schematic diagram of the transmission component in a high-pressure water gun rust removal device for maintenance, provided for an embodiment of this utility model; Figure 3 This is a schematic diagram of the nozzle component in a high-pressure water gun rust removal device for maintenance, provided as an embodiment of the present invention.

[0026] Explanation of the markings in the image: 1. Base plate; 11. Water pump; 12. Inlet pipe; 13. Filter screen; 14. Casters; 2. Transmission components; 21. Fixing plate; 22. First motor; 23. Bevel gear; 24. Threaded rod; 25. Transmission rod; 26. Hydraulic telescopic rod; 27. First outlet pipe; 3. Nozzle components; 31. Connecting plate; 32. Fixing frame; 33. Second motor; 34. Nozzle; 35. Second outlet pipe; 4. Sand suction pipe; 5. Limiting plate. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0028] Combination Figure 1 This application discloses a high-pressure water gun rust removal device for maintenance, including a base plate 1, a water supply pump 11, a water inlet pipe 12, a transmission component 2, and a nozzle component 3. The base plate 1 is slidably mounted on the ground, the water supply pump 11 is fixedly mounted on the base plate 1, one end of the water inlet pipe 12 is fixedly connected to the water supply pump 11, and the other end of the water inlet pipe 12 is placed in a water tank. The transmission component 2 is slidably mounted on the base plate 1 and can control the height of the water outlet. The nozzle component 3 is rotatably mounted on the transmission component 2 and can control the direction and angle of the water outlet.

[0029] In this embodiment, the base plate 1 has a rectangular structure. The water pump 11 is fixedly connected to the base plate 1 by bolts. The water inlet pipe 12 can be fixedly connected to the water pump 11 by integral molding or by snap-fit ​​connection. No specific limitation is made in this embodiment.

[0030] In practical use, the mining equipment to be derusted is placed on the ground, and the position of the base plate 1 is adjusted so that the nozzle 3 is directly facing the surface of the mining equipment. The pressure water pump 11 is started, and water is drawn into the pump through the inlet pipe 12. After being pressurized by the pressure water pump 11, the water is transformed into a high-pressure water flow. This high-pressure water flow is then sprayed out through the nozzle 3, which impacts the rust layer on the surface of the mining equipment. Under the impact of the high-pressure water flow, the rust layer on the surface of the mining equipment gradually falls off, thus achieving the effect of rust removal. After the high-pressure water flow has completed the rust removal of one part of the mining equipment, the transmission component 2 is started. The start of the transmission component 2 drives the nozzle 3 to move up and down. The movement of the nozzle 3 drives the high-pressure water flow to move synchronously, thereby achieving rust removal treatment on different parts of the mining equipment at different heights. Due to the complex surface structure of mining parts, when high-pressure water flow is needed to remove rust from the curved surface of mining equipment, nozzle 3 is activated. After activation, nozzle 3 can rotate in the vertical direction. After rotation, the spray angle of high-pressure water flow can be adjusted to ensure that the high-pressure water flow is always perpendicular to the surface of the mining equipment, thereby ensuring that the high-pressure water flow can efficiently remove rust from the surface of the mining equipment.

[0031] Combination Figure 1 and 2 In a specific embodiment, the transmission component 2 includes a fixed plate 21, a first motor 22, a bevel gear 23, a threaded rod 24, a transmission rod 25, a hydraulic telescopic rod 26, and a first water outlet pipe 27. The fixed plate 21 is fixedly mounted on the base plate 1. The first motor 22 is fixedly mounted on the outer periphery of the fixed plate 21. The bevel gear 23 is rotatably mounted inside the fixed plate 21 and is fixedly connected to the output shaft of the first motor 22. The threaded rod 24 is rotatably mounted inside the fixed plate 21 and is fixedly connected to the bevel gear 23. The threaded rod 24 is sleeved on the outer periphery of the transmission rod 25 and threadedly connected to the threaded rod 24. The hydraulic telescopic rod 26 is fixedly mounted on the top end of the transmission rod 25. One end of the first water outlet pipe 27 is fixedly connected to the outlet of the pressure pump 11, and the other end of the first water outlet pipe 27 is fixedly connected to the nozzle component 3. A limit plate 5 is fixedly mounted on the end of the transmission rod 25 away from the hydraulic telescopic rod 26, and the limit plate 5 abuts against the inner wall of the fixed plate 21. Multiple casters 14 are fixedly installed at the bottom of the base plate 1.

[0032] In this embodiment, the fixing plate 21 has a rectangular structure. The fixing plate 21 can be integrally formed and fixedly connected to the base plate 1, or it can be connected by welding; no specific limitation is made in this embodiment. The first motor 22 is fixedly connected to the fixing plate 21 by bolts. The bevel gear 23 is fixedly connected to the output shaft of the first motor 22 by welding. The hydraulic telescopic rod 26 can be integrally formed and fixedly connected to the transmission rod 25, or it can be connected by welding; no specific limitation is made in this embodiment. The limiting plate 5 can be integrally formed and fixedly connected to the transmission rod 25, or it can be connected by welding; no specific limitation is made in this embodiment. The caster wheel 14 is fixedly connected to the base plate 1 by bolts.

[0033] In practical use, when rust removal is required on mining equipment, the equipment is placed on the ground, and a pushing force is applied to the base plate 1 to allow it to move smoothly on the ground. The hydraulic telescopic rod 26 is then extended, allowing the nozzle 3 to be aligned with the rust-affected area of ​​the mining equipment. The pressurized water pump 11 is then started, converting the water flow into a high-pressure stream. This high-pressure stream travels through the first outlet pipe 27 to the nozzle 3 and is then sprayed out. The high-pressure water stream applies a strong impact force to the rust layer on the surface of the mining equipment, causing the rust layer to gradually peel off, thus achieving efficient removal of rust from the surface of the mining equipment. Because rust is widely distributed on the surface of the mining equipment, the height of the nozzle 3 needs to be continuously adjusted after the high-pressure water jet is sprayed. At this time, the first motor 22 is started. After the first motor 22 starts, it drives the bevel gear 23 to rotate. The rotation of the bevel gear 23 drives the threaded rod 24 to rotate. Since the inner circumference of the transmission rod 25 is fixedly provided with a threaded groove that matches the threaded rod 24, the transmission rod 25 can move up and down along the threaded rod 24 after the threaded rod 24 rotates. After the transmission rod 25 moves, it drives the hydraulic telescopic rod 26 to move synchronously. After the hydraulic telescopic rod 26 moves, it drives the nozzle 3 to move up and down. After the nozzle 3 moves, the rust layer on the surface of the mining equipment can be completely removed in the vertical direction. During the movement of the transmission rod 25, the setting of the limiting plate 5 can ensure that when the bottom end of the transmission rod 25 moves to the top of the fixed plate 21, the limiting plate 5 can contact the inner wall of the fixed plate 21, thereby preventing the transmission rod 25 from continuing to move and thus preventing the transmission rod 25 from falling out of the fixed plate 21.

[0034] After the vertical rust on the surface of the mining equipment is removed, the position of the base plate 1 in the horizontal direction is adjusted. After the base plate 1 moves, the nozzle 3 can move in the horizontal direction. After the nozzle 3 moves in the horizontal direction, it can ensure that the high-pressure water flow can fully cover all parts of the surface of the mining equipment, thereby achieving all-round removal of the rust layer on the surface of the mining equipment.

[0035] Combination Figure 1 and Figure 3 In a specific embodiment, the nozzle component 3 includes a connecting plate 31, a fixing frame 32, a second motor 33, a nozzle 34, and a second water outlet pipe 35. The connecting plate 31 is fixedly mounted on the end of the hydraulic telescopic rod 26 away from the transmission rod 25. The fixing frame 32 is fixedly mounted on the connecting plate 31. The second motor 33 is fixedly mounted on one side of the fixing frame 32. The nozzle 34 is rotatably mounted on the fixing frame 32 and is fixedly connected to the output shaft of the second motor 33. One end of the second water outlet pipe 35 is fixedly connected to the end of the first water outlet pipe 27 away from the pressure pump 11, and the other end of the second water outlet pipe 35 is fixedly connected to the nozzle 34. A sand suction pipe 4 is fixedly mounted on the outer periphery of the nozzle 34. One end of the sand suction pipe 4 communicates with the nozzle 34, and the other end of the sand suction pipe 4 is placed in a sand collection box. The fixing frame 32 has an L-shaped structure. A filter screen 13 is fixedly mounted on the end of the water inlet pipe 12 away from the pressure pump 11.

[0036] In this embodiment, the connecting plate 31 has a rectangular structure. The connecting plate 31 can be integrally formed and fixedly connected to the hydraulic telescopic rod 26, or it can be connected by welding; no specific limitation is made in this embodiment. The fixing frame 32 is integrally formed and fixedly connected to the connecting plate 31. The second motor 33 is fixedly connected to the fixing frame 32 by bolts. The nozzle 34 is fixedly connected to the output shaft of the second motor 33 by welding. The sand suction pipe 4 can be integrally formed and fixedly connected to the nozzle 34, or it can be connected by welding; no specific limitation is made in this embodiment. The filter screen 13 is integrally formed and fixedly connected to the water inlet pipe 12.

[0037] In practical use, due to the complex and diverse shapes of mining equipment, when rust removal is required on the surface of curved mining equipment, the second motor 33 is activated. After activation, the second motor 33 drives the nozzle 34 to rotate, which in turn changes the outlet angle of the high-pressure water flow. This change ensures that the high-pressure water flow remains perpendicular to the surface of the mining equipment, thereby ensuring that the high-pressure water flow consistently applies maximum impact force to the surface, thus ensuring thorough removal of rust. The L-shaped fixing frame 32 ensures that the nozzle 34 does not collide with the connecting plate 31 or the fixing frame 32 during rotation, ensuring that the high-pressure water flow smoothly passes through the first and second inlet pipes 12 and exits from the nozzle 34.

[0038] During the rust removal process of mining equipment, the filter screen 13 ensures that impurities in the water flow do not enter the pressure pump 11 during the water intake process, thus preventing wear on the pump's interior and ensuring stable operation. When the high-pressure water flows at high speed through the nozzle 34, a negative pressure zone is formed within it. At this time, the sand suction pipe 4 is inserted into the sand collection box. Under the negative pressure, the sand particles in the collection box enter the nozzle 34 through the suction pipe 4. Driven by the high-pressure water flow, the sand particles are sprayed out synchronously. This synchronous spraying effectively increases the friction on the rust layer on the mining surface, accelerating rust removal and thus improving the efficiency of rust removal from the mining equipment surface.

[0039] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A high-pressure water gun rust removal device for maintenance, characterized in that, include: Base plate (1), which is slidably disposed on the ground; A pressure water pump (11) is fixedly mounted on the base plate (1); Water inlet pipe (12), one end of which is fixedly connected to the pressure pump (11), and the other end of which is placed in the water tank; Transmission component (2), which is slidably disposed on the base plate (1), and the transmission component (2) can control the height of the water outlet; Nozzle component (3), which is rotatably mounted on the transmission component (2), and the nozzle component (3) can control the direction and angle of water output.

2. The high-pressure water gun rust removal device for maintenance according to claim 1, characterized in that, The transmission component (2) includes: A fixing plate (21) is fixedly mounted on the base plate (1); The first motor (22) is fixedly disposed on the outer periphery of the fixing plate (21); A bevel gear (23) is rotatably disposed within the fixed plate (21), and the bevel gear (23) is fixedly connected to the output shaft of the first motor (22); A threaded rod (24) is rotatably disposed within the fixed plate (21), and the threaded rod (24) is fixedly connected to the bevel gear (23); The transmission rod (25) is sleeved on the outer periphery of the threaded rod (24), and the transmission rod (25) is threadedly connected to the threaded rod (24). A hydraulic telescopic rod (26) is fixedly mounted on the top of the transmission rod (25); The first water outlet pipe (27) is fixedly connected at one end to the outlet of the pressure pump (11), and the other end of the first water outlet pipe (27) is fixedly connected to the nozzle component (3).

3. The high-pressure water gun rust removal device for maintenance according to claim 2, characterized in that, The nozzle component (3) includes: A connecting plate (31) is fixedly disposed at one end of the hydraulic telescopic rod (26) away from the transmission rod (25); A fixed frame (32) is fixedly mounted on the connecting plate (31); The second motor (33) is fixedly mounted on one side of the fixed frame (32); Nozzle (34), the nozzle (34) is rotatably mounted on the fixed frame (32), and the nozzle (34) is fixedly connected to the output shaft of the second motor (33); The second water outlet pipe (35) has one end fixedly connected to the end of the first water outlet pipe (27) away from the pressure pump (11), and the other end of the second water outlet pipe (35) is fixedly connected to the nozzle (34).

4. The high-pressure water gun rust removal device for maintenance according to claim 3, characterized in that, A sand suction pipe (4) is fixedly installed on the outer periphery of the nozzle (34). One end of the sand suction pipe (4) is connected to the nozzle (34), and the other end of the sand suction pipe (4) is placed in the sand collection box.

5. A high-pressure water gun rust removal device for maintenance according to claim 3, characterized in that, The fixed frame (32) is an L-shaped structure.

6. The high-pressure water gun rust removal device for maintenance according to claim 1, characterized in that, A filter screen (13) is fixedly installed at the end of the water inlet pipe (12) away from the water supply pump (11).

7. A high-pressure water gun rust removal device for maintenance according to claim 2, characterized in that, A limiting plate (5) is fixedly provided at one end of the transmission rod (25) away from the hydraulic telescopic rod (26), and the limiting plate (5) abuts against the inner wall of the fixing plate (21).

8. A high-pressure water gun rust removal device for maintenance according to claim 1, characterized in that... The bottom of the base plate (1) is fixedly equipped with multiple casters (14).

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