A cleaning and spraying device for the surface of a rotational moulded tank

Abstract

The utility model discloses a kind of cleaning and spraying device for rotomolding storage tank surface, it is related to rotomolding storage tank processing technical field, the cleaning and spraying device includes base, the upper surface of base is fixedly installed with support seat, the upper portion of support seat is symmetrically equipped with moving seat, rotatingly connected with clamping sleeve in moving seat, the inner wall of two clamping sleeves is all bonded with rubber pad.The utility model is equipped with rotating component, can effectively rotate tank body, is equipped with spraying component, can effectively spray tank body, is equipped with cleaning component, can effectively clean dust and other impurities on the surface of tank body, is equipped with dust collection component, can effectively adsorb and purify gas containing dust and other impurities after tank body outer wall is cleaned, to effectively protect environment and the health of staff, effectively improve the environmental protection of device whole.

Description

Technical Field

[0001] This utility model relates to the field of rotational molding storage tank processing technology, specifically a cleaning and spraying device for the surface of rotational molding storage tanks. Background Technology

[0002] Rotational molding tanks are specialized containers manufactured using a rotational molding process. They are primarily used for storing liquids or solid particles. When spraying the surface of a rotational molding tank, a cleaning and spraying device for the tank surface is required.

[0003] Currently, the surface coating of rotomolded storage tanks is generally done manually by workers. While this method can effectively coat the tanks, it is time-consuming and labor-intensive, reducing both the efficiency and effectiveness of the coating process and increasing the workload of the workers. Furthermore, before coating the tanks, workers must manually clean the dust and other impurities adhering to the surface, which also increases their workload. Moreover, the dust and impurities will be released into the air after cleaning, causing environmental pollution. Inhaling large amounts of dust and impurities can also negatively impact the health of the workers.

[0004] Based on this, a cleaning and spraying device for the surface of rotational molding storage tanks is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this invention is to provide a cleaning and spraying device for the surface of rotational molding storage tanks to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A cleaning and spraying device for the surface of a rotational molding storage tank includes a base, a support seat fixedly installed on the upper surface of the base, and movable seats symmetrically arranged above the support seat. A clamping sleeve is rotatably connected inside the movable seat. Rubber pads are adhered to the inner walls of both clamping sleeves. A tank body is arranged between the two clamping sleeves. A support frame is fixedly installed on the upper surface of the support seat. Multiple guide frames are fixedly installed inside the support seat. Guide rods are fixedly connected to the inner walls of the guide frames. Guide blocks are slidably connected to the outer walls of the guide rods. The upper surfaces of every two guide blocks are fixedly connected to the bottoms of the two movable seats respectively.

[0008] A rotating assembly is disposed on the upper surface of the movable seat and is used to drive the clamping sleeve to rotate;

[0009] A spraying assembly is disposed on the surface of the support frame and is used to spray the surface of the tank.

[0010] A cleaning assembly is disposed on the upper surface of the support frame and is used to clean the surface of the tank.

[0011] A vacuuming assembly is disposed on the surface of the cleaning assembly and is used to collect impurities from the surface of the tank.

[0012] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0013] In one alternative: connecting frames are symmetrically installed on the upper surface of the support base, and hydraulic rods are fixedly installed in both connecting frames. The telescopic ends of the hydraulic rods are fixedly connected to a movable frame, and the surface of the movable frame is fixedly connected to the surface of the movable base.

[0014] In one alternative: the rotating assembly includes a drive motor fixedly connected to the upper surface of the movable seat, a rotating rod rotatably connected to the surface of the movable seat, the rotating rod being driven by the drive motor, a rotating gear fixedly connected to the outer wall of the rotating rod, and a mating gear plate meshing with the rotating gear fixedly connected to the outer wall of the clamping sleeve.

[0015] In one alternative embodiment: the spraying assembly includes a storage tank fixedly connected to one side of a support frame, a liquid pump fixedly connected to the upper surface of the support frame, a spray head fixedly installed on the other side of the support frame, the inlet end of the liquid pump being connected to the bottom of the storage tank via a pipe, and the outlet end of the liquid pump being connected to the interior of the spray head via a pipe.

[0016] In one alternative: the cleaning assembly includes a fixed frame fixedly connected to the upper surface of the support frame, electric telescopic rods are symmetrically installed on the upper surface of the fixed frame, the telescopic ends of the two electric telescopic rods are fixedly connected to a connecting frame, a cleaning plate is inserted into the connecting frame, and a cleaning brush is installed at the bottom of the cleaning plate.

[0017] In one alternative: a fixing plate is symmetrically installed on the surface of the connecting frame, and a sliding rod is symmetrically installed on the inner wall of the fixing plate. A contact plate is slidably connected to the outer wall of every two sliding rods. A return spring is sleeved on the outside of the sliding rod. The return spring abuts between the contact plate and the fixing plate. A pull plate is fixedly connected to one side of the contact plate by a pull rod, and an insert plate is fixedly connected to the other side of the contact plate. Slots for the insert plate to move are opened on the contact surface of the fixing plate and the connecting frame, as well as on the surface of the cleaning plate.

[0018] In one alternative embodiment: the vacuuming assembly includes two metal corrugated tubes symmetrically mounted on the upper surface of the connecting frame. The other ends of the two metal corrugated tubes are fixedly connected to a vacuum hood. A vacuum pump and a filter box are respectively mounted on the upper surface of the mounting frame. An activated carbon filter plate is provided inside the filter box. A top plate is fixedly connected to the upper surface of the activated carbon filter plate. A handle is fixedly connected to the upper surface of the top plate. Insert blocks are symmetrically provided at the bottom of the top plate. Positioning frames are symmetrically provided on the surface of the filter box. Movable slots for the insert blocks to move are opened on the upper surface of the positioning frames. The air inlet of the vacuum pump is connected to the upper surface of the vacuum hood through a pipe. The air outlet of the vacuum pump is connected to the interior of the filter box through a pipe. An exhaust pipe is connected to the surface of the filter box.

[0019] In one alternative: a locking cylinder is fixedly connected to the surface of the positioning frame, a locking rod is slidably inserted into the locking cylinder, one end of the locking rod extends to the outside of the locking cylinder and is fixedly connected to a pull plate, an abutment plate is fixedly connected to the outer wall of the locking rod, an abutment spring is sleeved on the outside of the locking rod, the abutment spring abuts between the abutment plate and the locking cylinder, and locking grooves for the locking rod to move are opened on the contact surface between the locking cylinder and the positioning frame and the surface of the insert block.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] 1. This utility model, through the setting of the rotating component, can conveniently and effectively rotate the tank, thereby facilitating the cleaning and spraying of the tank surface.

[0022] 2. This utility model, through the setting of the spraying component, can effectively spray the surface of the tank without the need for manual operation by staff, which effectively improves the spraying efficiency and effect of the tank and reduces the workload of staff.

[0023] 3. This utility model, through the setting of cleaning components and dust collection components, can effectively clean the dust and other impurities adhering to the surface of the can, thereby avoiding the impact of dust and other impurities on the spraying effect of the can. Furthermore, through the setting of dust collection components, it can effectively adsorb and filter the gas containing dust and other impurities after the exterior of the can is cleaned, thereby effectively protecting the environment and the health of the staff, and effectively improving the overall practicality and environmental friendliness of the device. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0025] Figure 2 This is a schematic diagram of the tank after disassembly in this utility model.

[0026] Figure 3 This is a schematic diagram of the spraying assembly in this utility model;

[0027] Figure 4 This is a schematic diagram of the disassembled cleaning plate and cleaning brush in this utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the activated carbon filter plate after disassembly in this utility model;

[0029] Figure 6 for Figure 2 Enlarged structural diagram of region A in the middle;

[0030] Figure 7 for Figure 2 A magnified structural diagram of region B in the middle;

[0031] Figure 8 for Figure 4 A magnified structural diagram of region C in the middle;

[0032] Figure 9 for Figure 5 A magnified structural diagram of region D in the middle.

[0033] Figure label annotations:

[0034] 1. Base; 2. Support base; 3. Movable base; 4. Clamping sleeve; 5. Tank body; 6. Connecting frame; 7. Hydraulic rod; 8. Movable frame; 9. Rubber pad; 10. Support frame; 11. Fixed frame; 12. Storage tank; 13. Liquid pump; 14. Spray head; 15. Electric telescopic rod; 16. Cleaning plate; 17. Cleaning brush; 18. Metal corrugated pipe; 19. Dust hood; 20. Dust pump; 21. Filter box; 22. Activated carbon filter plate; 23. 24. Top plate; 25. Insert block; 26. Drive motor; 27. Rotating rod; 28. Rotating gear; 29. ​​Matching gear plate; 30. Guide frame; 31. Guide rod; 32. Guide block; 33. Connecting frame; 34. Fixing plate; 35. Slide rod; 36. Abutment plate; 37. Return spring; 38. Pull rod; 39. Insert plate; 40. Positioning frame; 41. Locking cylinder; 42. Locking rod; 43. Abutment plate; 44. Abutment spring; 45. Exhaust pipe. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0036] In one embodiment, such as Figures 1-9As shown, a cleaning and spraying device for the surface of a rotational molding storage tank includes a base 1, a support seat 2 fixedly installed on the upper surface of the base 1, and movable seats 3 symmetrically arranged above the support seat 2. A clamping sleeve 4 is rotatably connected inside the movable seat 3. Rubber pads 9 are adhered to the inner walls of both clamping sleeves 4. A tank body 5 is provided between the two clamping sleeves 4. A support frame 10 is fixedly installed on the upper surface of the support seat 2. A plurality of guide frames 29 are fixedly installed inside the support seat 2. A guide rod 30 is fixedly connected to the inner wall of the guide frame 29. A guide block 31 is slidably connected to the outer wall of the guide rod 30. The upper surfaces of every two guide blocks 31 are fixedly connected to the bottom of two movable seats 3 respectively.

[0037] The rotating assembly is disposed on the upper surface of the movable seat 3 and is used to drive the clamping sleeve 4 to rotate;

[0038] The spraying assembly is disposed on the surface of the support frame 10 and is used to spray the surface of the tank 5;

[0039] The cleaning assembly is disposed on the upper surface of the support frame 10 and is used to clean the surface of the tank 5;

[0040] A vacuuming assembly is disposed on the surface of the cleaning assembly and is used to collect impurities from the surface of the tank 5.

[0041] In this embodiment, when the surface of the tank 5 needs to be sprayed, the tank 5 is first placed between two clamping sleeves 4. At this time, the hydraulic rod 7 starts to operate, thereby driving the two clamping sleeves 4 to move towards the center synchronously. When the clamping sleeves 4 are fitted onto the outer wall of the tank 5, the tank 5 can be effectively clamped through the cooperation between the clamping sleeves 4, the hydraulic rod 7, and the rubber pad 9. After the tank 5 is clamped, the rotating component starts to operate. At this time, the rotating component can effectively drive the tank 5 to rotate synchronously. During the rotation of the tank 5, the cleaning component also starts to operate synchronously. At this time, the cleaning component can be used to clean the surface of the tank 5. The adhering dust and other impurities are cleaned. When the cleaning component cleans the surface of tank 5, a large amount of dust and other impurities will appear. At this time, the dust collection component starts to operate. The dust collection component can effectively adsorb and purify the gas containing dust and other impurities, thereby effectively protecting the environment and the health of the staff, and effectively improving the overall environmental protection of the device. After the surface of tank 5 is cleaned, the spraying component starts to operate. At this time, the surface of tank 5 can be sprayed with paint without the need for manual operation by the staff, which effectively improves the overall practicality of the device and reduces the workload of the staff.

[0042] In one embodiment, such as Figures 1-5As shown, connecting frames 6 are symmetrically installed on the upper surface of the support base 2. Hydraulic rods 7 are fixedly installed in both connecting frames 6. The telescopic end of the hydraulic rod 7 is fixedly connected to a movable frame 8. The surface of the movable frame 8 is fixedly connected to the surface of the movable base 3. When it is necessary to fix the tank 5, simply place the tank 5 between the two clamping sleeves 4. At this time, the hydraulic rod 7 starts to run, thereby driving the movable frame 8 and the movable base 3 to move synchronously. The movable base 3 then drives the clamping sleeves 4 to move towards the center synchronously. When the clamping sleeves 4 are fitted on the outer wall of the tank 5, the tank 5 can be effectively fixed by the clamping sleeves 4. The setting of the rubber pad 9 can effectively improve the fixing effect and stability between the clamping sleeves 4 and the tank 5.

[0043] In one embodiment, such as Figure 2 and Figure 6 As shown, the rotating assembly includes a drive motor 25 fixedly connected to the upper surface of the movable base 3. A rotating rod 26 is rotatably connected to the surface of the movable base 3. The rotating rod 26 is driven by the drive motor 25. A rotating gear 27 is fixedly connected to the outer wall of the rotating rod 26. A mating gear 28 that meshes with the rotating gear 27 is fixedly connected to the outer wall of the clamping sleeve 4. After the tank 5 is fixed, the drive motor 25 starts to run. At this time, the drive motor 25 will drive the rotating rod 26 and the rotating gear 27 to rotate synchronously. The rotating gear 27 will then drive the mating gear 28 and the clamping sleeve 4 to rotate synchronously. The clamping sleeve 4 will then drive the tank 5 to rotate synchronously. At this time, the tank 5 can be rotated, which facilitates the cleaning and spraying of the tank 5.

[0044] In one embodiment, such as Figures 1-5 As shown, the spraying assembly includes a storage tank 12 fixedly connected to one side of the support frame 10. A liquid pump 13 is fixedly connected to the upper surface of the support frame 10, and a spray head 14 is fixedly installed on the other side of the support frame 10. The inlet end of the liquid pump 13 is connected to the bottom of the storage tank 12 through a pipe, and the outlet end of the liquid pump 13 is connected to the inside of the spray head 14 through a pipe. When it is necessary to spray the surface of the tank 5, the liquid pump 13 starts to run. At this time, the liquid pump 13 will transfer the liquid inside the storage tank 12 to the spray head 14 through the pipe, and then spray it out through the spray head 14. At this time, the surface of the tank 5 can be effectively sprayed.

[0045] In one embodiment, such as Figures 1-5As shown, the cleaning assembly includes a fixed frame 11 fixedly connected to the upper surface of the support frame 10. Electric telescopic rods 15 are symmetrically installed on the upper surface of the fixed frame 11. The telescopic ends of the two electric telescopic rods 15 are fixedly connected to a connecting frame 32. A cleaning plate 16 is inserted into the connecting frame 32. A cleaning brush 17 is installed at the bottom of the cleaning plate 16. When it is necessary to clean the surface of the tank 5, the electric telescopic rods 15 start to run. At this time, the electric telescopic rods 15 will drive the connecting frame 32 and the cleaning plate 16 to move down synchronously. The cleaning plate 16 will then drive the cleaning brush 17 to move synchronously. When the cleaning brush 17 comes into contact with the surface of the tank 5, the rotating surface of the tank 5 can be cleaned by the cleaning brush 17.

[0046] In one embodiment, such as Figure 4 and Figure 8 As shown, a fixing plate 33 is symmetrically installed on the surface of the connecting frame 32. Slide rods 34 are symmetrically installed on the inner wall of the fixing plate 33. A contact plate 35 is slidably connected to the outer wall of every two slide rods 34. A return spring 36 is sleeved on the outside of the slide rod 34, and the return spring 36 abuts against the contact plate 35 and the fixing plate 33. A pull plate is fixedly connected to one side of the contact plate 35 via a pull rod 37, and an insert plate 38 is fixedly connected to the other side of the contact plate 35. Slots for the insert plate 38 are provided on the contact surface between the fixing plate 33 and the connecting frame 32, as well as on the surface of the cleaning plate 16. When the cleaning brush 17 needs to be installed, simply pull the pull plate first, which will then move the pull rod 37 in the same direction. As the lever 37 moves, the pull rod 37 then moves the contact plate 35 synchronously on the outer wall of the slide rod 34. During the movement of the contact plate 35, the return spring 36 is squeezed. The contact plate 35 also moves the insert plate 38 synchronously. At this time, the cleaning plate 16 is inserted into the connecting frame 32, and then the pull rod is released. At this time, the return spring 36 is reset, and the contact plate 35 and the insert plate 38 move synchronously. When the insert plate 38 is inserted into the slot on the surface of the cleaning plate 16, the cleaning plate 16 and the connecting frame 32 can be fixed. At this time, the cleaning brush 17 can be installed, and it is convenient for the staff to disassemble, clean and replace the cleaning brush 17.

[0047] In one embodiment, such as Figures 1-5As shown, the vacuuming assembly includes two metal corrugated pipes 18 symmetrically mounted on the upper surface of the connecting frame 32. The other ends of the two metal corrugated pipes 18 are fixedly connected to a vacuum hood 19. A vacuum pump 20 and a filter box 21 are respectively mounted on the upper surface of the mounting bracket 11. An activated carbon filter plate 22 is provided inside the filter box 21. A top plate 23 is fixedly connected to the upper surface of the activated carbon filter plate 22. A handle is fixedly connected to the upper surface of the top plate 23. Insert blocks 24 are symmetrically arranged at the bottom of the top plate 23. Positioning frames 39 are symmetrically arranged on the surface of the filter box 21. Movable slots for the insert blocks 24 are opened on the upper surface of the positioning frames 39. The air inlet of the vacuum pump 20 is connected to the upper surface of the vacuum hood 19 via a pipe, and the air outlet of the vacuum pump 20 is connected to the upper surface of the vacuum hood 19 via a pipe. The filter box 21 is connected to the interior, and the surface of the filter box 21 is connected to the exhaust pipe 44. During the cleaning process of the cleaning brush 17 cleaning the surface of the tank 5, a large amount of dust and other impurities will be generated. At this time, the dust pump 20 starts to run. The dust pump 20 can effectively draw the gas containing dust and other impurities into the interior of the filter box 21 through the dust suction hood 19. When the gas containing dust and other impurities enters the interior of the filter box 21, the activated carbon filter plate 22 can effectively intercept and filter the dust and other impurities contained in the gas. After the gas is purified, it will be discharged through the exhaust pipe 44. At this time, the environment and the health of the staff can be effectively protected, and the overall environmental protection of the device can be effectively improved.

[0048] In one embodiment, such as Figure 5 and Figure 9 As shown, a locking cylinder 40 is fixedly connected to the surface of the positioning frame 39. A locking rod 41 is slidably inserted into the locking cylinder 40. One end of the locking rod 41 extends to the outside of the locking cylinder 40 and is fixedly connected to a pull plate. An abutment plate 42 is fixedly connected to the outer wall of the locking rod 41. An abutment spring 43 is sleeved on the outside of the locking rod 41. The abutment spring 43 abuts against the abutment plate 42 and the locking cylinder 40. Locking grooves for the locking rod 41 to move are opened on the contact surface between the locking cylinder 40 and the positioning frame 39 and on the surface of the insert block 24. When it is necessary to adjust the activated carbon filter plate 22... During installation, simply pull the pull plate. The pull plate will move the locking rod 41 and the abutment plate 42 synchronously. During the movement of the abutment plate 42, it will compress the abutment spring 43. Then, insert the insertion block 24 into the positioning frame 39 and release the pull plate. At this time, the abutment spring 43 will return to its original position, moving the abutment plate 42 and the locking rod 41 synchronously. When the locking rod 41 is inserted into the locking groove on the surface of the insertion block 24, the activated carbon filter plate 22 can be installed. This also makes it easy for staff to disassemble and replace the activated carbon filter plate 22.

[0049] The above embodiment discloses a cleaning and spraying device for the surface of a rotomolded storage tank. When spraying is required on the surface of the tank 5, the tank 5 is first placed between two clamping sleeves 4. At this time, the hydraulic rod 7 starts operating, causing the two clamping sleeves 4 to move synchronously towards the center. When the clamping sleeves 4 are fitted onto the outer wall of the tank 5, the tank 5 is effectively clamped through the cooperation of the clamping sleeves 4, the hydraulic rod 7, and the rubber pad 9. After the tank 5 is clamped, the drive motor 25 starts operating. The drive motor 25 effectively drives the clamping sleeves 4 and the tank 5 to rotate synchronously. During the rotation of the tank 5, the cleaning brush 17 effectively... The cleaning brush 17 cleans the dust and other impurities adhering to the surface of the tank 5. When the cleaning brush 17 cleans the surface of the tank 5, a large amount of dust and other impurities will appear. At this time, the dust pump 20 starts to run. The dust pump 20 can effectively draw the gas containing dust and other impurities into the filter box 21 for purification, thereby effectively protecting the environment and the health of the staff, and effectively improving the overall environmental protection of the device. After the surface of the tank 5 is cleaned, the liquid pump 13 starts to run, and the surface of the tank 5 can be sprayed without the need for manual operation by the staff, which effectively improves the overall practicality of the device and reduces the workload of the staff.

[0050] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A cleaning and spraying device for the surface of a rotational molding storage tank, comprising a base (1), characterized in that, A support base (2) is fixedly installed on the upper surface of the base (1). A movable seat (3) is symmetrically arranged above the support base (2). A clamping sleeve (4) is rotatably connected inside the movable seat (3). Rubber pads (9) are adhered to the inner walls of both clamping sleeves (4). A tank (5) is provided between the two clamping sleeves (4). A support frame (10) is fixedly installed on the upper surface of the support base (2). Multiple guide frames (29) are fixedly installed inside the support base (2). A guide rod (30) is fixedly connected to the inner wall of the guide frame (29). A guide block (31) is slidably connected to the outer wall of the guide rod (30). The upper surface of each pair of guide blocks (31) is fixedly connected to the bottom of the two movable seats (3). The base also includes: A rotating assembly is disposed on the upper surface of the movable seat (3) and is used to drive the clamping sleeve (4) to rotate; A spraying assembly is disposed on the surface of the support frame (10) and is used to spray the surface of the tank (5); A cleaning assembly is disposed on the upper surface of the support frame (10) and is used to clean the surface of the tank (5); A vacuuming assembly is disposed on the surface of the cleaning assembly and is used to collect impurities from the surface of the tank (5).

2. The cleaning and spraying device for the surface of a rotational molding storage tank according to claim 1, characterized in that, The upper surface of the support base (2) is symmetrically equipped with connecting frames (6), and hydraulic rods (7) are fixedly installed in both connecting frames (6). The telescopic end of the hydraulic rods (7) is fixedly connected to a movable frame (8), and the surface of the movable frame (8) is fixedly connected to the surface of the movable base (3).

3. A cleaning and spraying device for the surface of a rotational molding storage tank according to claim 1, characterized in that, The rotating assembly includes a drive motor (25) fixedly connected to the upper surface of the movable seat (3), a rotating rod (26) rotatably connected to the surface of the movable seat (3), the rotating rod (26) being driven by the drive motor (25), a rotating gear (27) fixedly connected to the outer wall of the rotating rod (26), and a mating gear disc (28) meshing with the rotating gear (27) fixedly connected to the outer wall of the clamping sleeve (4).

4. A cleaning and spraying device for the surface of a rotational molding storage tank according to claim 1, characterized in that, The spraying assembly includes a storage tank (12) fixedly connected to one side of a support frame (10), a liquid pump (13) fixedly connected to the upper surface of the support frame (10), and a spray head (14) fixedly installed on the other side of the support frame (10). The inlet end of the liquid pump (13) is connected to the bottom of the storage tank (12) through a pipe, and the outlet end of the liquid pump (13) is connected to the inside of the spray head (14) through a pipe.

5. A cleaning and spraying device for the surface of a rotational molding storage tank according to claim 1, characterized in that, The cleaning assembly includes a fixed frame (11) fixedly connected to the upper surface of the support frame (10). Electric telescopic rods (15) are symmetrically installed on the upper surface of the fixed frame (11). The telescopic ends of the two electric telescopic rods (15) are fixedly connected to a connecting frame (32). A cleaning plate (16) is inserted into the connecting frame (32). A cleaning brush (17) is installed at the bottom of the cleaning plate (16).

6. A cleaning and spraying device for the surface of a rotational molding storage tank according to claim 5, characterized in that, The surface of the connecting frame (32) is symmetrically equipped with fixing plates (33), and the inner wall of the fixing plate (33) is symmetrically equipped with sliding rods (34). The outer walls of each pair of sliding rods (34) are slidably connected with abutting plates (35). The outside of the sliding rods (34) is fitted with a return spring (36). The return spring (36) abuts between the abutting plate (35) and the fixing plate (33). One side of the abutting plate (35) is fixedly connected with a pull plate by a pull rod (37), and the other side of the abutting plate (35) is fixedly connected with a plug plate (38). The contact surface between the fixing plate (33) and the connecting frame (32) and the surface of the cleaning plate (16) are all provided with slots for the plug plate (38) to move.

7. A cleaning and spraying device for the surface of a rotational molding storage tank according to claim 6, characterized in that, The vacuuming assembly includes metal corrugated pipes (18) symmetrically mounted on the upper surface of the connecting frame (32). The other ends of the two metal corrugated pipes (18) are fixedly connected to vacuum hoods (19). A vacuum pump (20) and a filter box (21) are respectively mounted on the upper surface of the fixing frame (11). An activated carbon filter plate (22) is provided inside the filter box (21). A top plate (23) is fixedly connected to the upper surface of the activated carbon filter plate (22). A [missing information - likely a device or component] is fixedly connected to the upper surface of the top plate (23). The top plate (23) has symmetrically arranged insert blocks (24) at its bottom. The filter box (21) has symmetrically arranged positioning frames (39) on its surface. The upper surface of the positioning frame (39) has an active groove for the insert blocks (24) to move. The air inlet of the vacuum pump (20) is connected to the upper surface of the vacuum hood (19) through a pipe. The air outlet of the vacuum pump (20) is connected to the interior of the filter box (21) through a pipe. The surface of the filter box (21) is connected to an exhaust pipe (44).

8. A cleaning and spraying device for the surface of a rotational molding storage tank according to claim 7, characterized in that, A locking cylinder (40) is fixedly connected to the surface of the positioning frame (39). A locking rod (41) is slidably inserted into the locking cylinder (40). One end of the locking rod (41) extends to the outside of the locking cylinder (40) and is fixedly connected to a pull plate. An abutment plate (42) is fixedly connected to the outer wall of the locking rod (41). An abutment spring (43) is sleeved on the outside of the locking rod (41). The abutment spring (43) abuts between the abutment plate (42) and the locking cylinder (40). Locking grooves for the locking rod (41) to move are opened on the contact surface between the locking cylinder (40) and the positioning frame (39) and the surface of the insert block (24).

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