Assembly type high-pressure cleaning machine
By designing a modular high-pressure washer, the problems of structural dispersion and poor stability of high-pressure washer structures are solved, enabling efficient, flexible, and precise liquid spraying, and improving the stability and safety of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-03-31
AI Technical Summary
Existing high-pressure cleaners have a fragmented structure and poor stability, making it difficult to meet the flexible mobility and multi-scenario application needs of industries such as manufacturing and food processing.
An assembled high-pressure washer was designed, including a mounting frame, a water tank, a booster pump, a water delivery pipe, a hollow column, a reel, a hose, a rotating frame, and an anti-rotation structure. Through the combination of these components, stable liquid delivery and flexible spraying are achieved, ensuring the stability and flexibility of the equipment.
It improves the stability and flexibility of the cleaning machine, enables efficient and precise liquid spraying, simplifies the operation process, extends the service life of the hose, and enhances the safety and efficiency of the equipment.
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Figure CN224058185U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-pressure cleaner technology, and more particularly to a prefabricated high-pressure cleaner. Background Technology
[0002] A high-pressure washer is a machine that uses a power unit (such as an electric motor or internal combustion engine) to drive a high-pressure plunger pump to generate high-pressure water to clean the surface of an object. The working principle of a high-pressure washer is that the power-driven pump completes a suction and discharge process, delivering a certain amount of water to the high-pressure pipeline, where it reaches the high-pressure nozzle with great energy. Because the orifice diameter of the high-pressure nozzle is much smaller than the diameter of the high-pressure pipeline, the water flow accelerates upon reaching the nozzle, forming a jet. When the impact force of the high-pressure water jet exceeds the adhesion of the dirt and the object's surface, it can peel off and wash away the dirt, thus achieving the purpose of cleaning the object.
[0003] In the current technology, the demand for high-pressure cleaning in industries such as manufacturing and food processing is constantly increasing. However, traditional fixed cleaning machines are difficult to meet the needs of flexible movement and multi-scenario applications. At the same time, the existing high-pressure cleaning machines have a dispersed structure, poor stability, and are prone to pipeline breakage. Therefore, an integrated high-pressure cleaning machine is needed. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a modular high-pressure washer that can be used in different environments and improve the stability of the washer, so as to solve the problems that the existing high-pressure washer cannot adapt to multiple application scenarios and has poor stability.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a prefabricated high-pressure cleaner, including a mounting frame, a water tank is provided on the top of the mounting frame, a booster pump is provided on the right side of the water tank, and the bottom of the booster pump is fixedly connected to the top of the mounting frame.
[0006] The bottom of the water bucket is fixedly connected to a first connecting pipe, the other side of the first connecting pipe is fixedly connected to the input end of the booster pump, the output end of the booster pump is fixedly connected to a water delivery pipe, the side of the water delivery pipe away from the booster pump is fixedly connected to a tee pipe, the inside of the tee pipe is rotatably connected to a hollow column, and the bottom of the hollow column is connected to the inside of the delivery pipe through the tee pipe.
[0007] A take-up reel is fixedly connected to the left side of the hollow column surface, and a flexible hose is fixedly connected to the top of the hollow column. The top of the flexible hose passes through the take-up reel and is wound around the surface of the take-up reel. A rotating frame is fitted onto the surface of the hollow column, and the bottom of the rotating frame is fixedly connected to the top of the mounting frame.
[0008] An anti-rotation structure is fixedly connected to the side of the rotating frame near the take-up reel, and the side of the anti-rotation structure near the take-up reel is fixedly connected to the inner wall of the take-up reel.
[0009] A spraying structure is fixedly connected to the right side of the mounting bracket, and the top of the spraying structure is used in conjunction with the side of the hose away from the hollow column.
[0010] The top of the bucket is threaded with a top cover, and the bottom of the bucket is threaded with a drain cover.
[0011] Furthermore, the anti-rotation structure includes a chuck, which is sleeved on the surface of the tee tube. One side of the chuck contacts the inner wall of the rotating frame. One side of the rotating frame is provided with an internal hexagon screw, the threaded end of which passes through the rotating frame and the chuck and extends to the surface of the chuck. A flip plate is provided on the top of the chuck, and a slot for cooperating with the flip plate is opened on the surface of the chuck. A mounting base is movably connected inside the flip plate, and the top of the mounting base is fixedly connected to the inner wall of the winding reel.
[0012] Furthermore, the spraying structure includes a second connecting pipe, the bottom of which is fixedly connected to a third connecting pipe. The side of the third connecting pipe near the mounting frame is detachably connected to the surface of the mounting frame. The bottom of the third connecting pipe is fixedly connected to a nozzle. The number of nozzles is several and they are evenly distributed. The side of the hose away from the hollow column is engaged with the second connecting pipe.
[0013] Furthermore, a tension spring for rotating the flip plate is fixedly connected to the top of the flip plate, and the other side of the tension spring is fixedly connected to the inner wall of the take-up reel.
[0014] Furthermore, fixed seats are provided on both sides of the top of the take-up reel. The side of the fixed seat near the rotating frame is fixedly connected to the inner wall of the rotating frame. Limiting wheels are movably connected at the top and bottom between the two fixed seats. The surface of the limiting wheel is used in conjunction with the surface of the hose.
[0015] Furthermore, a limiting ring for limiting is fixedly connected to the surface of the hose, and the surface of the limiting ring is used in conjunction with the surface of the limiting wheel.
[0016] Furthermore, lower sleeves are fitted on both sides of the bottom of the bucket, and the surface of the lower sleeves is fixedly connected to the top of the mounting frame. Upper sleeves are provided on both sides of the top of the bucket, and the upper sleeves and lower sleeves are detachably connected by bolts.
[0017] The beneficial effects of this utility model are:
[0018] 1. This utility model, by setting up an installation frame, a water bucket, a booster pump, a first connecting pipe, a water delivery pipe, a T-connector, a hollow column, a take-up reel, a hose, a rotating frame, an anti-rotation structure, and a spraying structure, enables efficient liquid spraying operations. The booster pump ensures that the liquid in the water bucket can be stably and efficiently extracted and delivered to the T-connector through the water delivery pipe. The hollow column design inside the T-connector allows the hose to rotate and extend flexibly. Combined with the take-up reel, it ensures neat hose storage and facilitates adjustment of hose length and spraying direction according to actual needs. The addition of the anti-rotation structure effectively prevents the take-up reel from accidentally rotating under the pull of the hose, ensuring the stability of the spraying operation. The spraying structure and hose work together to achieve precise spraying of liquid, improving work efficiency. The top cover design of the water bucket effectively prevents dust and impurities from entering, ensuring the cleanliness of the liquid. At the same time, opening the top cover facilitates the injection of cleaning water. The drain cover at the bottom of the water bucket allows for quick emptying of the water bucket when needed, facilitating cleaning and maintenance.
[0019] 2. This utility model effectively prevents the winding reel from rotating on the T-tube by setting an anti-rotation structure. The chuck is sleeved on the surface of the T-tube and fixed to the rotating frame with an internal hexagon screw, ensuring the stability of the chuck. The matching design of the flip-up chuck plate and the chuck slot increases the stability of the winding reel on the chuck when it needs to be fixed. The movable connection between the mounting base and the flip-up chuck plate allows the mounting base to be firmly fixed on the winding reel, avoiding shaking during use, thereby improving the overall stability and safety of the equipment.
[0020] 3. This utility model, through its spraying structure, enables flexible installation and disassembly of the spray heads, facilitating maintenance and replacement. The detachable connection between the third connecting pipe and the mounting bracket allows the spray heads to be adjusted as needed, improving spraying flexibility and coverage. The even distribution of multiple spray heads ensures spray uniformity and improves work efficiency. The snap-fit design between the hose and the second connecting pipe simplifies the connection process and improves installation convenience. This spraying structure design not only improves the spraying effect but also facilitates operation and maintenance.
[0021] 4. This utility model, by setting a tension spring, can realize the automatic rotation and reset function of the flip plate. When it is necessary to operate the flip plate, the tension of the tension spring can be overcome to rotate and flip the plate. After the operation is completed, the tension of the tension spring can automatically pull the flip plate back to its original position, thereby simplifying the operation process, improving work efficiency, and also enhancing the stability and reliability of the equipment.
[0022] 5. By setting a fixed seat and limiting wheels, this utility model can ensure the stable placement and orderly arrangement of the hose on the winding reel. The fixed connection between the fixed seat and the inner wall of the rotating frame enhances the stability of the structure, while the movable connection between the top and bottom of the limiting wheels between the fixed seats allows the hose to move smoothly during the winding process, while avoiding damage caused by the hose being squeezed or misaligned. This design not only improves the efficiency and neatness of hose winding, but also effectively extends the service life of the hose.
[0023] 6. By setting a limiting ring, this utility model can effectively limit and fix the hose, preventing the hose from shifting or falling off during use, thereby improving the stability and safety of the equipment.
[0024] 7. By setting a lower sleeve and an upper sleeve, this utility model can securely install the water bucket on the mounting frame. The lower sleeve is fixedly connected to the top of the mounting frame, while the upper sleeve and the lower sleeve are detachably connected by bolts. This design not only facilitates the installation and disassembly of the water bucket, but also ensures the stability and safety of the water bucket during use. Attached Figure Description
[0025] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0026] Figure 1 This is a schematic diagram of the structure of this utility model;
[0027] Figure 2 This is a schematic diagram of the three-dimensional structure of the booster pump;
[0028] Figure 3 This is a schematic diagram of the three-dimensional structure of the water bucket;
[0029] Figure 4 This is a schematic diagram of the three-dimensional structure of the winding reel;
[0030] Figure 5 A three-dimensional structural diagram of the winding reel from another perspective;
[0031] Figure 6 This is a schematic diagram of the three-dimensional structure of the rotating frame;
[0032] Figure 7 for Figure 5 Enlarged view of the local structure at point A in the middle.
[0033] In the diagram: 1. Mounting bracket; 2. Water bucket; 3. Booster pump; 4. First connecting pipe; 5. Water supply pipe; 6. T-pipe; 7. Hollow column; 8. Reel; 9. Hose; 10. Rotating frame; 11. Top cover; 12. Drain cover; 13. Chuck; 14. Hex socket screw; 15. Flip plate; 16. Slot; 17. Mounting base; 18. Second connecting pipe; 19. Third connecting pipe; 20. Nozzle; 21. Tension spring; 22. Fixing base; 23. Limiting wheel; 24. Limiting ring; 25. Lower sleeve; 26. Upper sleeve. Detailed Implementation
[0034] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0035] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of this utility model.
[0036] The prefabricated high-pressure cleaner includes a mounting frame 1, a water tank 2 is installed on the top of the mounting frame 1, a booster pump 3 is installed on the right side of the water tank 2, and the bottom of the booster pump 3 is fixedly connected to the top of the mounting frame 1.
[0037] The bottom of the water bucket 2 is fixedly connected to the first connecting pipe 4. The other side of the first connecting pipe 4 is fixedly connected to the input end of the booster pump 3. The output end of the booster pump 3 is fixedly connected to the water supply pipe 5. The side of the water supply pipe 5 away from the booster pump 3 is fixedly connected to the three-way pipe 6. The hollow column 7 is rotatably connected inside the three-way pipe 6. The bottom of the hollow column 7 is connected to the inside of the delivery pipe through the three-way pipe 6.
[0038] A take-up reel 8 is fixedly connected to the left side of the surface of the hollow column 7, and a hose 9 is fixedly connected to the top of the hollow column 7. The top of the hose 9 passes through the take-up reel 8 and is wound around the surface of the take-up reel 8. A rotating frame 10 is fitted on the surface of the hollow column 7, and the bottom of the rotating frame 10 is fixedly connected to the top of the mounting frame 1.
[0039] An anti-rotation structure is fixedly connected to the side of the rotating frame 10 near the take-up reel 8, and the side of the anti-rotation structure near the take-up reel 8 is fixedly connected to the inner wall of the take-up reel 8.
[0040] A spraying structure is fixedly connected to the right side of the mounting bracket 1. The top of the spraying structure is used in conjunction with the side of the hose 9 away from the hollow column 7.
[0041] The top of the bucket 2 is threaded with a top cover 11, and the bottom of the bucket 2 is threaded with a drain cover 12.
[0042] Please see Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 , Figure 2 This is a schematic diagram of the three-dimensional structure of booster pump 3; Figure 3 This is a schematic diagram of the three-dimensional structure of bucket 2; Figure 4 A schematic diagram of the three-dimensional structure of the winding reel 8; Figure 5 A three-dimensional structural diagram of the winding reel 8 from another perspective; Figure 6 This is a schematic diagram of the three-dimensional structure of the rotating frame 10; Figure 7 for Figure 5 Enlarged view of the local structure at point A in the middle.
[0043] The anti-rotation structure includes a chuck 13, which is fitted onto the surface of the tee pipe 6. One side of the chuck 13 contacts the inner wall of the rotating frame 10. A hexagon socket screw 14 is provided on one side of the rotating frame 10. The threaded end of the hexagon socket screw 14 passes through the rotating frame 10 and the chuck 13 and extends to the surface of the chuck 13. A flip plate 15 is provided on the top of the chuck 13. A slot 16 for cooperating with the flip plate 15 is opened on the surface of the chuck 13. A mounting base 17 is movably connected inside the flip plate 15. The top of the mounting base 17 is fixed to the inner wall of the winding reel 8. The fixed connection effectively prevents the take-up reel 8 from rotating on the T-tube 6. The chuck 13 is fitted onto the surface of the T-tube 6 and fixed to the rotating frame 10 by the hex socket screw 14, ensuring the stability of the chuck 13. The matching design of the flip plate 15 and the slot 16 increases the stability of the take-up reel 8 on the chuck 13 when it needs to be fixed. The movable connection between the mounting base 17 and the flip plate 15 allows the mounting base 17 to be firmly fixed on the take-up reel 8, avoiding shaking during use, thereby improving the overall stability and safety of the equipment.
[0044] The spraying structure includes a second connecting pipe 18, with a third connecting pipe 19 fixedly connected to the bottom of the second connecting pipe 18. The side of the third connecting pipe 19 closest to the mounting bracket 1 is detachably connected to the surface of the mounting bracket 1. A nozzle 20 is fixedly connected to the bottom of the third connecting pipe 19. There are several nozzles 20, which are evenly distributed. The side of the hose 9 away from the hollow column 7 is snapped into the second connecting pipe 18, which allows for flexible installation and removal of the spray heads, facilitating maintenance and replacement. The detachable connection between the third connecting pipe 19 and the mounting bracket 1 allows the nozzles 20 to be adjusted as needed, improving the flexibility and coverage of the spraying. The even distribution of multiple nozzles 20 ensures the uniformity of the spraying and improves work efficiency. The snap-fit design between the hose 9 and the second connecting pipe 18 simplifies the connection process and improves the convenience of installation. This spraying structure design not only improves the spraying effect but also facilitates operation and maintenance.
[0045] A tension spring 21 for rotating the flip-over pallet 15 is fixedly connected to the top of the flip-over pallet 15. The other side of the tension spring 21 is fixedly connected to the inner wall of the take-up reel 8, which enables the automatic rotation and reset function of the flip-over pallet 15. When it is necessary to operate the flip-over pallet 15, the tension of the tension spring 21 can be overcome to rotate and flip the pallet 15. After the operation is completed, the tension of the tension spring 21 can automatically pull the flip-over pallet 15 back to its original position, thereby simplifying the operation process, improving work efficiency, and enhancing the stability and reliability of the equipment.
[0046] Fixed seats 22 are provided on both sides of the top of the take-up reel 8. The side of the fixed seat 22 closest to the rotating frame 10 is fixedly connected to the inner wall of the rotating frame 10. Limiting wheels 23 are movably connected at the top and bottom between the two fixed seats 22. The surface of the limiting wheel 23 cooperates with the surface of the hose 9 to ensure the stable placement and orderly arrangement of the hose 9 on the take-up reel 8. The fixed connection between the fixed seat 22 and the inner wall of the rotating frame 10 enhances the stability of the structure, while the movable connection of the limiting wheel 23 at the top and bottom between the fixed seats 22 allows the hose 9 to move smoothly during the winding process, while avoiding damage to the hose 9 caused by mutual squeezing or misalignment. This design not only improves the efficiency and neatness of the hose 9 winding, but also effectively extends the service life of the hose 9.
[0047] A limiting ring 24 for limiting is fixedly connected to the surface of the hose 9. The surface of the limiting ring 24 cooperates with the surface of the limiting wheel 23 to effectively limit and fix the hose 9, preventing the hose 9 from shifting or falling off during use, thereby improving the stability and safety of the equipment.
[0048] Both sides of the bottom of the water bucket 2 are fitted with lower sleeves 25, and the surface of the lower sleeves 25 is fixedly connected to the top of the mounting frame 1. Both sides of the top of the water bucket 2 are provided with upper sleeves 26, and the upper sleeves 26 and the lower sleeves 25 are detachably connected by bolts, which can securely install the water bucket 2 on the mounting frame 1. The lower sleeves 25 are fixedly connected to the top of the mounting frame 1, while the upper sleeves 26 and the lower sleeves 25 are detachably connected by bolts. This design not only facilitates the installation and removal of the water bucket 2, but also ensures the stability and safety of the water bucket 2 during use.
[0049] Working principle: First, open the top cover 11 of the water bucket 2, fill the water bucket 2 with water, and tighten the top cover 11 to prevent leakage. If drainage or cleaning of the water bucket 2 is required, the bottom drain cover 12 can be used. Ensure that the booster pump 3 is fixedly connected to the mounting bracket 1, and that one end of the first connecting pipe 4 is connected to the bottom of the water bucket 2, and the other end is connected to the input end of the booster pump 3. The output end of the booster pump 3 is connected to the water supply pipe 5. Start the booster pump 3, which will draw water from the water bucket 2 and, after pressurization, send it to the water supply pipe 5. The water supply pipe 5 guides the high-pressure water flow into the three-way pipe 6. The three-way pipe 6 has a rotatable hollow column 7 inside. The hollow column 7 allows water to pass through it and flow to the hose 9 connected to its top. When the hollow column 7 rotates, it can change the direction of the outlet of the hose 9. To prevent the winding reel 8 on the hollow column 7 from rotating with the hollow column 7, An anti-rotation structure (chuck 13, flip plate 15, etc.) is installed on the rotating frame 10 to ensure the stability of the winding reel 8, so that the hose 9 can be wound orderly on the winding reel 8 without tangling. The end of the hose 9 away from the hollow column 7 is snapped into the second connecting pipe 18 in the spraying structure. The second connecting pipe 18 is connected to the third connecting pipe 19 and several evenly distributed nozzles 20. When the high-pressure water flows through the hose 9 to the nozzle 20, a large-area spraying operation can be achieved. The entire system is designed with maintenance convenience in mind. For example, the nozzles 20 can be quickly disassembled for cleaning or replacement by snapping. The water tank 2 can be quickly installed and disassembled by the upper and lower sleeves 25 and bolts, which is convenient for cleaning and inspection. At the same time, the hose 9 can also be connected to other nozzles 20 to be used in different environments and to clean corners and narrow areas.
[0050] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0051] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A modular high pressure washer characterized in that: Including the mounting frame (1), the top of mounting frame (1) is provided with water bucket (2), the right side of water bucket (2) is provided with booster pump (3), the bottom of booster pump (3) is fixedly connected with the top of mounting frame (1); The bottom of water bucket (2) is fixedly communicated with first connecting pipe (4), the other side of first connecting pipe (4) is fixedly communicated with the input end of booster pump (3), the output end of booster pump (3) is fixedly communicated with water delivery pipe (5), the side away from booster pump (3) of water delivery pipe (5) is fixedly communicated with tee pipe (6), the inside of tee pipe (6) is rotatably connected with hollow column (7), the bottom of hollow column (7) is communicated with the inside of delivery pipe through tee pipe (6); The surface of hollow column (7) is fixedly connected with winding disc (8) on the left side, the top of hollow column (7) is fixedly communicated with hose (9), the top of hose (9) penetrates winding disc (8) and is wound on the surface of winding disc (8), the surface of hollow column (7) is sleeved with rotating frame (10), the bottom of rotating frame (10) is fixedly connected with the top of mounting frame (1); The side close to winding disc (8) of rotating frame (10) is fixedly connected with anti-rotation structure, the side close to winding disc (8) of anti-rotation structure is fixedly connected with the inner wall of winding disc (8); The right side of mounting frame (1) is fixedly connected with spraying structure, the top of spraying structure is used in cooperation with the side away from hollow column (7) of hose (9); The top of water bucket (2) is threadedly connected with top cover (11), the bottom of water bucket (2) is threadedly connected with drain cover (12).
2. The assembled high pressure washer of claim 1, wherein: The anti-rotation structure includes chuck (13), the chuck (13) is sleeved on the surface of tee pipe (6), one side of chuck (13) is in contact with the inner wall of rotating frame (10), one side of rotating frame (10) is provided with inner hexagonal screw (14), the threaded end of inner hexagonal screw (14) penetrates rotating frame (10) and chuck (13) and extends to the surface of chuck (13), the top of chuck (13) is provided with turnover clamping plate (15), the surface of chuck (13) is provided with clamping groove (16) used in cooperation with turnover clamping plate (15), the inside of turnover clamping plate (15) is movably connected with mounting seat (17), the top of mounting seat (17) is fixedly connected with the inner wall of winding disc (8).
3. The assembled high pressure washer of claim 1, wherein: The spraying structure includes second connecting pipe (18), the bottom of second connecting pipe (18) is fixedly communicated with third connecting pipe (19), the side close to mounting frame (1) of third connecting pipe (19) is detachably connected with the surface of mounting frame (1), the bottom of third connecting pipe (19) is fixedly communicated with spray head (20), the number of spray head (20) is several, and they are evenly distributed, the side away from hollow column (7) of hose (9) is clamped in cooperation with second connecting pipe (18).
4. The assembled high pressure washer of claim 2, wherein: The top of turnover clamping plate (15) is fixedly connected with tension spring (21) for rotating turnover clamping plate (15), the other side of tension spring (21) is fixedly connected with the inner wall of winding disc (8). The top of turnover clamping plate (15) is fixedly connected with tension spring (21) for rotating turnover clamping plate (15), the other side of tension spring (21) is fixedly connected with the inner wall of winding disc (8).
5. The assembled high pressure washer of claim 2, wherein: Both sides of the top of the winding disc (8) are provided with fixed seats (22), one side of the fixed seat (22) close to the rotating frame (10) is fixedly connected with the inner wall of the rotating frame (10), the top and the bottom between the two fixed seats (22) are movably connected with limiting wheels (23), the surface of the limiting wheel (23) is used in cooperation with the surface of the hose (9).
6. The assembled high pressure washer of claim 5, wherein: The surface of the hose (9) is fixedly connected with a limiting ring (24) for limiting, the surface of the limiting ring (24) is used in cooperation with the surface of the limiting wheel (23).
7. The assembled high pressure washer of claim 1, wherein: Both sides of the bottom of the water bucket (2) are sleeved with lower sleeves (25), the surface of the lower sleeve (25) is fixedly connected with the top of the mounting frame (1), both sides of the top of the water bucket (2) are provided with upper sleeves (26), the upper sleeve (26) is detachably connected with the lower sleeve (25) through bolts.