A filter wall cleaning device for sewage treatment

Abstract

The application provides a filter tank wall cleaning device for sewage treatment, and relates to the technical field of sewage tank cleaning. The device comprises a tank body and a cleaning machine. The tank body is provided with a track through bolt installation. The cleaning machine walks on the track on the top of the tank body. The front side of the cleaning machine is provided with a lifting box that can be adjusted up and down. The lower side of the lifting box is provided with a cleaning box. The rear side of the cleaning box is provided with a cleaning mechanism for cleaning the inner wall of the tank body. The inner side of the lifting box is longitudinally and slidingly connected with L-shaped blocks at both ends. The rear side of each L-shaped block is provided with a sliding block. The bottom end of each L-shaped block and sliding block is fixedly connected with an upper frame. The upper frame is provided with a limiting mechanism for connecting with the cleaning box. A driving mechanism is further provided for alternately driving the cleaning mechanism to operate. The application solves the problem of cleaning the tank wall below the water collecting tank. The upper frame and the rotating rod can move up and down, and can be operated during the cleaning process of the cleaning mechanism. The device only stops when it is connected, and does not excessively affect the cleaning speed of the filter tank.

Description

Technical Field

[0001] This invention relates to the field of sewage tank cleaning technology, and in particular to a device for cleaning the walls of a filter tank for sewage treatment. Background Technology

[0002] The pool wall cleaning device is used for online cleaning of the pool walls in the water during the operation of sewage treatment filter pools. The pool walls between the upper edge of the filter screen and the water surface are immersed for a long time, which easily causes biofilm, algae and backwash splash sludge to adhere. If not removed in time, it will deteriorate the quality of the effluent. The equipment is positioned by a lightweight frame at the pool opening, and the cleaning roller extends into the water and rotates against the wall. It uses brush bristles to mechanically peel off the adhered impurities. The peeled material sinks naturally to the bottom of the pool with the water flow and is periodically removed by the existing sludge removal system. There is no need for pumping. The whole machine has no high voltage and no electrical equipment in the pool. It can complete the underwater cleaning without stopping the filtration, reduce the risk of manual operation, and ensure the efficient and low-resistance operation of the filter pool.

[0003] In the continuously operating inclined tube filter tank of a wastewater treatment plant, clean water is collected along the width of the tank through a triangular weir collection trough and then discharged. Existing tank wall cleaning devices are mostly wall-mounted brushes with a walking frame structure. When the cleaning mechanism reaches the central collection trough, it must be lifted as a whole and cross the triangular weir before being lowered back into the water. This "lift-cross-lower" action has obvious drawbacks. The area below the triangular weir becomes a dead zone, where algae and biofilm adhere for a long time, affecting the quality of the effluent. Moreover, each crossing takes a long time, which prolongs the overall operation time and affects the utilization rate of the equipment. At the same time, during the lifting process, the brush roller drips water, which will drip impurities and sewage into the collection trough, affecting the quality of the effluent.

[0004] Therefore, a wastewater treatment filter wall cleaning device is proposed to solve the above problems. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the present invention provides a device for cleaning the walls of a filter tank for sewage treatment.

[0006] The technical solutions provided by the embodiments of the present invention are as follows:

[0007] This invention provides a wastewater treatment filter tank wall cleaning device, comprising a tank body and a cleaning machine. A track is bolted to the tank body, and the cleaning machine travels on the track at the top of the tank body. An adjustable lifting box is located at the front of the cleaning machine, and a cleaning box is located below the lifting box. A cleaning mechanism for cleaning the inner wall of the tank body is located behind the cleaning box. L-shaped blocks are longitudinally slidably connected to both ends of the inner side of the lifting box, and sliding blocks are located behind each L-shaped block. An upper frame is fixedly connected to the bottom of each L-shaped block and sliding block. The upper frame has a limiting mechanism for connecting to the cleaning box and a driving mechanism for alternately driving the cleaning mechanism. A pair of electric telescopic cylinders are fixedly connected to the top of the lifting box, and the output end of each electric telescopic cylinder passes through the inner side of the lifting box and is fixedly connected to the top of the L-shaped block. A connecting structure is provided between the L-shaped block and the sliding block.

[0008] Furthermore, the upper frame extends through the bottom of the lifting box, and notches are provided on the side walls of the L-shaped block and the sliding block. A stop block is fixedly connected to the bottom of the lifting box relative to the notch.

[0009] Furthermore, the limiting mechanism includes limiting rods, of which two pairs are provided. Both pairs of limiting rods are slidably connected to the inner side of the upper frame. An upper plate is fixedly connected to the top of the side wall of each limiting rod. Limiting blocks are slidably connected to both sides of the bottom of the outer wall of the upper frame. The bottom ends of the limiting blocks on the adjacent side are inclined, and the limiting blocks are slidably connected laterally to the inner side of the upper frame. Triangular plates with inclined surfaces on both sides are fixedly connected to the front and rear sides of the bottom of each limiting rod. A lower plate is fixedly connected to the bottom of each limiting block relative to the position of the triangular plates. Several limiting springs are fixedly connected between the side wall of the lower plate and the inner side of the upper frame. The inclined surface of the triangular plate fits against the inclined surface of the limiting block on the adjacent side. Four rectangular slots adapted to the upper frame are opened through the top of the cleaning box, and limiting slots are opened on both sides of the four rectangular slots.

[0010] Furthermore, the top of each limiting groove is inclined, the top of each limiting block on the side furthest away is inclined, the side wall of the limiting rod is provided with a through groove, a fixing plate is fixedly connected to the inner side of the upper frame relative to the position in the through groove, and a return spring is fixedly connected between the top of the fixing plate and the top of the through groove.

[0011] Furthermore, the driving mechanism includes a pair of drive motors, each fixedly connected to the bottom of the lifting box at a position relative to the gap between the L-shaped block and the sliding block. A pair of rotating cylinders are rotatably connected to the bottom of the lifting box. The output end of each drive motor passes through the bottom of the lifting box and is fixedly connected to the rotating cylinder. A rotating rod is slidably connected longitudinally to the inner side of each rotating cylinder. A docking block is fixedly connected to the bottom end of each rotating rod. A pair of lower blocks are rotatably connected through the top of the cleaning box at a position directly below the upper frame. The top of each lower block has a docking groove adapted to the docking block. A drive sprocket is fixedly connected to the bottom end of each lower block. A drive rod is fixedly connected to the driving end of the cleaning mechanism, and the side end of the drive rod is rotatably connected to the inside of the cleaning box.

[0012] Furthermore, a driven bevel gear is fixedly connected to the outer wall of the drive rod, a driven sprocket is rotatably connected to the top of the cleaning box, a drive bevel gear that meshes with the driven bevel gear is fixedly connected to the bottom of the driven sprocket, and a chain is connected between the drive sprocket and the driven sprocket.

[0013] Furthermore, a support ring is fixedly connected to the rear side of the upper frame located on the front side, and a waterproof bearing is fixedly connected to the inner side of the support ring. The outer wall of the rotating rod is keyed to the waterproof bearing.

[0014] Furthermore, the connection structure includes a T-shaped block, and a pair of T-shaped blocks are provided. An L-shaped plate is fixedly connected to the top of the sliding block. Straight grooves are opened at the top of the L-shaped block and the sliding block relative to the position below the L-shaped plate. Positioning grooves are opened on the side of the straight grooves that are close to each other. The T-shaped block is laterally slidably connected between the positioning grooves. The sliding block is longitudinally slidably connected to the rear side inside the lifting box.

[0015] Furthermore, each of the L-shaped plates has a threaded stud connected to its front side, and the stud is rotatably connected to the side wall of the T-shaped block. Each of the T-shaped blocks has a fixed positioning rod connected to its rear side, and each of the lifting boxes has a pair of slots that are compatible with the positioning rods at its inner top.

[0016] Furthermore, a maintenance plate is bolted to the front of the lifting box, and a pair of vertical slots are provided on the front of the maintenance plate relative to the position next to the stud.

[0017] The beneficial effects of the technical solutions provided in the embodiments of the present invention include at least the following:

[0018] In this embodiment of the invention, an electric telescopic cylinder, a limiting mechanism, and a driving mechanism are employed. When the cleaning machine passes through the water collection tank, one side of the upper frame is first separated from the cleaning box, and the upper frame and rotating rod are raised. Then, when the cleaning box passes through the water collection tank, the above operation can be repeated to control the upper frame and rotating rod to descend and be connected to the cleaning box in a limiting manner. Finally, the other side of the upper frame and rotating rod are separated from the cleaning box, allowing the cleaning box to pass under the water collection tank and clean the pool wall below the water collection tank. Furthermore, the up and down movement of the upper frame and rotating rod can be operated during the cleaning process of the cleaning mechanism, and the machine only stops when docking, so it will not significantly affect the cleaning speed of the filter tank.

[0019] By employing a connecting mechanism, when cleaning the filter tank wall with a horizontally arranged water collection tank, the two rear upper frames can be separated from the L-shaped block, and the sliding block and the two rear upper frames can be fixed in the lifting box. This allows the cleaning box and the front upper frame to form an L-shape to clean the tank wall below the horizontally arranged water collection tank, further improving the flexibility of the device and meeting diverse cleaning needs. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a partial frontal perspective view of the cleaning device and pool body of the present invention.

[0022] Figure 2 This is a rear-view three-dimensional structural diagram of the cleaning machine of the present invention.

[0023] Figure 3 This is a three-dimensional view of the front view of the lifting box and cleaning box of the present invention when they are opened.

[0024] Figure 4 Appendix of the present invention Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of the drive motor, drive cylinder and rotating rod of the present invention.

[0026] Figure 6 This is a schematic diagram of the overall appearance and structure of the chain and cleaning mechanism of the present invention.

[0027] Figure 7 This is a bottom-view three-dimensional structural diagram of the L-shaped block, drive motor, and upper frame of the present invention.

[0028] Figure 8 This is a full-section three-dimensional structural diagram of the front of the cleaning box of the present invention.

[0029] Figure 9 This is a partial cross-sectional three-dimensional structural diagram of the upper frame and support ring of the present invention from a bottom view.

[0030] Figure 10 This is a top-view partial cross-sectional three-dimensional structural diagram of the L-shaped block and sliding block of the present invention.

[0031] Figure 11 This is a schematic diagram of the three-dimensional structure of the sliding block and L-shaped block separated by a partial cross-section according to the present invention.

[0032] Reference numerals: 1. Pool body; 2. Cleaning machine; 3. Track; 4. Lifting box; 5. Cleaning box; 6. Cleaning mechanism; 7. L-shaped block; 8. Sliding block; 9. Drive motor; 10. Upper frame; 11. Electric telescopic cylinder; 12. Notch; 13. Abutment block; 14. Limiting rod; 15. Upper plate; 16. Limiting block; 17. Limiting spring; 18. Rectangular groove; 19. Limiting groove; 20. Fixing plate; 21. Return spring; 22. Rotating cylinder; 23. Rotating rod 24. Connecting block; 25. Lower block; 26. Connecting groove; 27. Drive sprocket; 28. Drive rod; 29. ​​Driven bevel gear; 30. Driven bevel gear; 31. Driven sprocket; 32. Chain; 33. Support ring; 34. Waterproof bearing; 35. T-block; 36. L-shaped plate; 37. Straight groove; 38. Positioning groove; 39. Inspection plate; 40. Stud; 41. Positioning rod; 42. Slot; 43. Vertical groove; 44. Lower plate; 45. Triangular plate.

[0033] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0034] The technical solutions of the present invention will now be described with reference to the accompanying drawings. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some well-known technologies. Furthermore, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0035] like Figures 1 to 11As shown, an embodiment of the present invention provides a wastewater treatment filter tank wall cleaning device, including a tank body 1 and a cleaning machine 2. A track 3 is bolted onto the tank body 1, and the cleaning machine 2 travels on the track 3 at the top of the tank body 1. By traveling the cleaning machine 2 on the track 3, the stability of the cleaning machine 2 during operation can be ensured. A vertically adjustable lifting box 4 is provided on the front side of the cleaning machine 2. The vertical movement of the lifting box 4 is mainly achieved by a motor and a lead screw structure. The motor drives the lead screw to rotate, thereby driving the threaded lifting box 4 to complete the vertical movement. This is a mature technology in the prior art and will not be described in detail here. A cleaning box 5 is provided below the lifting box 4, and a cleaning mechanism 6 for cleaning the inner wall of the tank body 1 is provided on the rear side of the cleaning box 5. The cleaning mechanism 6 mainly consists of... Composed of multiple cleaning brushes and gear sets, the main rod can rotate to drive multiple cleaning brushes to rotate synchronously, thus cleaning the inner wall of the filter tank 1. This is a mature technology in the prior art and will not be described in detail here. Both ends of the inner side of the lifting box 4 are longitudinally slidably connected with L-shaped blocks 7. Each L-shaped block 7 is provided with a sliding block 8 behind it. The bottom ends of the L-shaped blocks 7 and the sliding blocks 8 are fixedly connected with an upper frame 10. The upper frame 10 is provided with a limiting mechanism for connecting with the cleaning box 5, and also with a drive mechanism for rotating the cleaning mechanism 6. A pair of electric telescopic cylinders 11 are fixedly connected to the top of the lifting box 4. The output end of the electric telescopic cylinder 11 passes through the inner side of the lifting box 4 and is fixedly connected to the top of the L-shaped block 7. A connection structure is provided between the L-shaped block 7 and the sliding block 8.

[0036] Furthermore, the upper frame 10 is set through the bottom of the lifting box 4, and the side walls of the L-shaped block 7 and the sliding block 8 are both provided with notches 12. The bottom of the lifting box 4 is fixedly connected with a stop block 13 relative to the notch 12.

[0037] The limiting mechanism includes limiting rods 14, two pairs of which are slidably connected to the inner side of the upper frame 10. The top of the side wall of each limiting rod 14 is fixedly connected to an upper plate 15. Limiting blocks 16 are slidably connected to both sides of the bottom of the outer wall of the upper frame 10. The bottom ends of the limiting blocks 16 on the side closest to each other are inclined and are slidably connected to the inner side of the upper frame 10. Triangular plates 45 with inclined surfaces on both sides are fixedly connected to the front and rear sides of the bottom of the limiting rods 14. A lower plate 44 is fixedly connected to the bottom of the limiting blocks 16 relative to the position of the triangular plates 45. Several limiting springs 17 are fixedly connected between the side wall of the lower plate 44 and the inner side of the upper frame 10. The inclined surface of the triangular plate 45 fits against the inclined surface of the side closest to the limiting block 16. The top of the cleaning box 5 has four rectangular slots 18 that are adapted to the upper frame 10. Limiting slots 19 are opened on both sides of the four rectangular slots 18.

[0038] Furthermore, the top of the limiting groove 19 is inclined, the top of the limiting block 16 on the side away from it is inclined, the side wall of the limiting rod 14 is provided with a through groove, the inner side of the upper frame 10 is fixedly connected to the position in the through groove, and a reset spring 21 is fixedly connected between the top of the fixed plate 20 and the top of the through groove.

[0039] The drive mechanism includes a pair of drive motors 9. Each drive motor 9 is fixedly connected to the bottom of the lifting box 4 at the gap between the L-shaped block 7 and the sliding block 8. A pair of rotating cylinders 22 are rotatably connected to the bottom of the lifting box 4. The output end of the drive motor 9 passes through the bottom of the lifting box 4 and is fixedly connected to the rotating cylinder 22. A rotating rod 23 is longitudinally slidably connected to the inner side of the rotating cylinder 22. A docking block 24 is fixedly connected to the bottom of the rotating rod 23. A pair of lower blocks 25 are rotatably connected to the top of the cleaning box 5 directly below the upper frame 10. The top of the lower block 25 has a docking groove 26 that matches the docking block 24. A drive sprocket 27 is fixedly connected to the bottom of the lower block 25. A drive rod 28 is fixedly connected to the drive end of the cleaning mechanism 6. The side end of the drive rod 28 is rotatably connected to the inner side of the cleaning box 5.

[0040] A driven bevel gear 29 is fixedly connected to the outer wall of the drive rod 28. A driven sprocket 31 is rotatably connected to the top of the cleaning box 5. A drive bevel gear 30 that meshes with the driven bevel gear 29 is fixedly connected to the bottom of the driven sprocket 31. A chain 32 is connected between the drive sprocket 27 and the driven sprocket 31.

[0041] A support ring 33 is fixedly connected to the rear side of the upper frame 10 located on the front side. A waterproof bearing 34 is fixedly connected to the inner side of the support ring 33. The outer wall of the rotating rod 23 is keyed to the waterproof bearing 34. Through the setting of the support ring 33 and the waterproof bearing 34, the rotating rod 23 can be driven to move together during the up and down movement of the upper frame 10, and the normal rotation of the rotating rod 23 will not be hindered.

[0042] During the cleaning process of the filter tank 1, the cleaning machine 2 is first docked on the track 3, and the cleaning box 5 is lowered to the inside of the tank 1. Then, one of the drive motors 9 is started to drive the rotating cylinder 22 to rotate. Since the rotating rod 23 slides longitudinally inside the rotating cylinder 22, and the guide block on the rotating rod 23 slides in the guide groove inside the rotating cylinder 22, the rotation of the rotating cylinder 22 will drive the rotating rod 23 to rotate together. Then, through the connection between the docking block 24 and the docking groove 26, one of the lower blocks 25 will be driven to rotate, thereby driving the drive sprocket 27 to rotate. Then, under the transmission of the chain 32, the other drive sprocket 27 and the driven sprocket 31 will rotate simultaneously, thereby driving the drive bevel gear 30 to rotate. Then, the meshing driven bevel gear 29 will rotate, and then the cleaning mechanism 6 will be driven by the drive rod 28 to run, thereby cleaning the side wall of the tank 1.

[0043] During this process, the cleaning machine 2 is moved, and the lifting box 4 is raised and lowered to achieve a comprehensive cleaning of the pool 1. Then, when the cleaning box 5 needs to pass through the water collection tank, before passing through, the electric telescopic cylinder 11 on the side near the water collection tank is activated to drive the L-shaped block 7 and the sliding block 8 to move upward together (since the L-shaped block 7 and the sliding block 8 are connected by a connecting structure, the upward movement of the L-shaped block 7 will drive the sliding block 8 to move upward together). At the same time, the upper frame 10, the support ring 33, the waterproof bearing 34 and the rotating rod 23 are moved upward together, thereby moving the docking block 24 from the docking position. Pull out of slot 26 (at this time, another drive motor 9 continues to drive the cleaning mechanism 6 to run, cleaning the part that the subsequent cleaning box 5 has passed through). At this time, the upward movement of the upper frame 10 will drive the limit block 16, which can only move laterally, to slide upward, thereby driving the limit block 16 to move upward on the inclined surface of the triangular plate 45, gradually releasing the pressure on the limit block 16. Then, under the elastic force of the limit spring 17, the lower plate 44 and the limit block 16 are pushed to move towards the middle, thereby driving the limit block 16 to be pulled out from the limit slot 19, and disconnecting the connection between the upper frame 10 and the cleaning box 5.

[0044] During this process, the upward movement of the upper frame 10 causes the fixed plate 20 to move upward as well, gradually releasing the tension on the return spring 21. After the return spring 21 returns to its original position, the limiting block 16 is fully retracted into the upper frame 10, simultaneously pushing the limiting rod 14 and the upper plate 15 upward together. This causes the limiting rod 14 and the upper frame 10 to move upward together, while simultaneously moving the rotating rod 23 gradually into the rotating cylinder 22, thus avoiding interference with subsequent equipment crossing the water collection tank. (It should be noted that the water carried up when the upper frame 10 rises is filtered water with higher purity, which will not affect the effluent quality of the water collection tank. The cleaning brush is responsible for cleaning the tank walls. Previously, the cleaning brush passed directly over the water collection tank, causing impurities and water on the brush to drip into the water collection tank as it rose, affecting the effluent quality. This device avoids this situation.) Then, after the raised upper frame 10 passes the water collection tank, the electric telescopic cylinder 11 can be controlled to drive the L-shaped block 7 to move down, and the above operation is repeated in reverse. However, it should be noted that when the upper plate 15 moves above the abutment block 13, it will be obstructed by the abutment block 13, but the L-shaped block 7 and the sliding block 8 can drive the upper frame 10 to continue to move down, thereby driving the limiting block 16 to move down on the inclined surface of the triangular plate 45. The inclined surface of the triangular plate 45 presses the inclined surface of the limiting block 16, so that when the upper frame 10 descends, the limiting block 16 extends and inserts into the limiting groove 19 to achieve the connection between the two. At the same time, the docking block 24 is driven to insert into the corresponding docking groove 26. (During the docking process, it is necessary to control the drive motor 9 to stop running and stop the movement of the cleaning machine 2. At the same time, the drive motor 9 is equipped with a position sensor to ensure that the stop position is the same as the start position, thereby ensuring the docking of the subsequent docking block 24.)

[0045] Then control another electric telescopic cylinder 11 to rise and repeat the above operation. After rising, control another drive motor 9 to start and drive the cleaning mechanism 6 to run and clean the inner wall of the pool 1. Then, when another upper frame 10 passes the water collection tank, control another electric telescopic cylinder 11 to move down and connect.

[0046] In summary, through the design of the above structure, when the cleaning machine 2 passes through the water collection tank, one side of the upper frame 10 is first separated from the cleaning box 5, and the upper frame 10 and the rotating rod 23 are raised. Then, when the cleaning box 5 passes through the water collection tank, the above operation can be repeated to lower the upper frame 10 and the rotating rod 23 and connect them to the cleaning box 5 at the limit position. Finally, the other side of the upper frame 10 and the rotating rod 23 are separated from the cleaning box 5, so that the cleaning box 5 can pass under the water collection tank to clean the pool wall below the water collection tank. Moreover, the up and down movement of the upper frame 10 and the rotating rod 23 can be operated during the movement and cleaning process of the cleaning mechanism 6. The machine only stops when docking, which will not affect the cleaning speed of the filter tank too much.

[0047] Based on the above embodiments, it was found during use that although the above structure can flexibly span the water collection tank, in some existing sewage treatment filtration tanks, the water collection tank is horizontally set on the side wall of the tank body 1. The above structure can only span the vertically set water collection tank, which is relatively limited and cannot meet the user's needs. To solve the above problems, the above structure has been further improved.

[0048] The connecting structure includes a pair of T-shaped blocks 35. An L-shaped plate 36 is fixedly connected to the top of the sliding block 8. Straight grooves 37 are opened at the top of the L-shaped block 7 and the sliding block 8 relative to the position below the L-shaped plate 36. Positioning grooves 38 are opened on the side of the straight grooves 37 that are close to each other. The T-shaped blocks 35 are laterally slidably connected between the positioning grooves 38. The sliding blocks 8 are longitudinally slidably connected to the rear side of the lifting box 4.

[0049] The front side of the L-shaped plate 36 is threaded with studs 40, the side end of the studs 40 is rotatably connected to the side wall of the T-shaped block 35, and the rear side of the T-shaped block 35 is fixedly connected with positioning rods 41. The top of the inner side of the lifting box 4 is provided with a pair of slots 42 that are compatible with the positioning rods 41.

[0050] A maintenance plate 39 is bolted to the front of the lifting box 4. A pair of vertical grooves 43 are provided on the front of the maintenance plate 39 relative to the position next to the stud 40. The vertical grooves 43 are provided to avoid obstructing the normal up and down movement of the stud 40.

[0051] When cleaning is required below the horizontally positioned water collection tank, one of the electric telescopic cylinders 11 can be activated to move the corresponding L-shaped block 7 and sliding block 8 upwards, simultaneously moving the two upper frames 10 and rotating rod 23 upwards as well. When they reach the top, the positioning rod 41 moves to the position in front of the slot 42, allowing the corresponding stud 40 to be rotated and moved backwards. This pushes the T-shaped block 35 to slide inside the straight groove 37, moving the portion of the T-shaped block 35 inserted into the positioning groove 38 of the L-shaped block 7 into the positioning groove 38 of the sliding block 8. This disconnects the L-shaped block 7 from the sliding block 8, while simultaneously inserting the positioning rod 41 into the corresponding slot. In the groove 42, the position of the sliding block 8 is restricted, and then the electric telescopic cylinder 11 can be controlled to move down. At this time, since the L-shaped block 7 and the sliding block 8 are separated, only the front upper frame 10 can be moved down (since the L-shaped block 7 has a straight groove 37, it will not be obstructed by the stud 40) to connect with the cleaning box 5. Then, control another electric telescopic cylinder 11 to repeat the above operation, so that the two rear upper frames 10 can be retracted. Then the area below the water collection tank can be cleaned. During the cleaning process, the rotating rod 23 and the front upper frame 10 are both located in front of the water collection tank, while a part of the rear of the cleaning box 5 and the cleaning mechanism 6 are both located below the water collection tank.

[0052] In summary, through the design of the above structure, when cleaning the filter pool wall with a horizontally arranged water collection tank, the two upper frames 10 at the rear can be separated from the L-shaped block 7, and the sliding block 8 and the two upper frames 10 at the rear can be fixed in the lifting box 4. This allows the cleaning box 5 and the upper frame 10 at the front to form an L-shape to clean the pool wall below the horizontally arranged water collection tank, further improving the flexibility of the device and meeting diverse cleaning needs.

[0053] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the preferred embodiments, while those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0054] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A device for cleaning the walls of a filter tank in wastewater treatment, characterized in that, The system includes a pool body (1) and a cleaning machine (2). A track (3) is bolted onto the pool body (1). The cleaning machine (2) travels on the track (3) at the top of the pool body (1). An adjustable lifting box (4) is provided on the front side of the cleaning machine (2). A cleaning box (5) is provided below the lifting box (4). A cleaning mechanism (6) for cleaning the inner wall of the pool body (1) is provided on the rear side of the cleaning box (5). L-shaped blocks (7) are longitudinally slidably connected to both ends of the inner side of the lifting box (4). A sliding mechanism (6) is provided behind each L-shaped block (7). Block (8), the bottom ends of the L-shaped block (7) and the sliding block (8) are fixedly connected to the upper frame (10), the upper frame (10) is provided with a limiting mechanism for connecting with the cleaning box (5), and a driving mechanism for alternately driving the cleaning mechanism (6) to run. The top of the lifting box (4) is fixedly connected to a pair of electric telescopic cylinders (11), the output end of the electric telescopic cylinder (11) passes through the inside of the lifting box (4) and is fixedly connected to the top of the L-shaped block (7). A connection structure is provided between the L-shaped block (7) and the sliding block (8). The limiting mechanism includes a limiting rod (14), and there are two pairs of limiting rods (14). Both pairs of limiting rods (14) are slidably connected to the inner side of the upper frame (10). The top of the side wall of the limiting rod (14) is fixedly connected to an upper plate (15). The bottom of the outer wall of the upper frame (10) is slidably connected to both sides of the limiting block (16). The bottom of the limiting block (16) on the side closest to each other is inclined. The limiting block (16) is slidably connected to the inner side of the upper frame (10) laterally. The bottom of the limiting rod (14) is fixedly connected to a triangular plate (45) with inclined surfaces on both sides on both sides. The upper frame (10) is set through the bottom of the lifting box (4). The side walls of the L-shaped block (7) and the sliding block (8) are both provided with notches (12). The bottom of the lifting box (4) is fixedly connected with a stop block (13) at the notch (12). The bottom of the limiting block (16) is fixedly connected to the lower plate (44) relative to the triangular plate (45). Several limiting springs (17) are fixedly connected between the side wall of the lower plate (44) and the inner side of the upper frame (10). The inclined surface of the triangular plate (45) is in contact with the inclined surface of the limiting block (16) on the side closest to it. The top of the cleaning box (5) is provided with four rectangular grooves (18) that are adapted to the upper frame (10). Limiting grooves (19) are provided on both sides of the four rectangular grooves (18), and the top of the limiting grooves (19) are all inclined. The top of the limiting block (16) is inclined on the side away from each other. The side wall of the limiting rod (14) is provided with a through groove. The inner side of the upper frame (10) is fixedly connected to a fixing plate (20) relative to the position inside the through groove. A reset spring (21) is fixedly connected between the top of the fixing plate (20) and the top of the through groove. The driving mechanism includes a pair of drive motors (9). Each drive motor (9) is fixedly connected to the bottom of the lifting box (4) at the gap between the L-shaped block (7) and the sliding block (8). A pair of rotating cylinders (22) are rotatably connected to the bottom of the lifting box (4). The output end of each drive motor (9) passes through the bottom of the lifting box (4) and is fixedly connected to the rotating cylinder (22). A rotating rod (23) is longitudinally slidably connected to the inner side of the rotating cylinder (22). A docking block (24) is fixedly connected to the bottom of the rotating rod (23). A pair of lower blocks (25) are rotatably connected through the top of the cleaning box (5) directly below the upper frame (10). The top of the lower block (25) is provided with a docking groove (26) that matches the docking block (24). A drive sprocket (27) is fixedly connected to the bottom of the lower block (25). A drive rod (28) is fixedly connected to the drive end of the cleaning mechanism (6). The side end of the drive rod (28) is rotatably connected to the inside of the cleaning box (5).

2. The wastewater treatment filter tank wall cleaning device according to claim 1, characterized in that, A driven bevel gear (29) is fixedly connected to the outer wall of the drive rod (28). A driven sprocket (31) is rotatably connected to the top of the cleaning box (5). A drive bevel gear (30) that meshes with the driven bevel gear (29) is fixedly connected to the bottom of the driven sprocket (31). A chain (32) is connected between the drive sprocket (27) and the driven sprocket (31).

3. The wastewater treatment filter tank wall cleaning device according to claim 1, characterized in that, A support ring (33) is fixedly connected to the rear side of the upper frame (10) located on the front side. A waterproof bearing (34) is fixedly connected to the inner side of the support ring (33). The outer wall of the rotating rod (23) is keyed to the waterproof bearing (34).

4. The wastewater treatment filter tank wall cleaning device according to claim 3, characterized in that, The connection structure includes a T-shaped block (35), and a pair of T-shaped blocks (35) are provided. An L-shaped plate (36) is fixedly connected to the top of the sliding block (8). A straight groove (37) is opened at the top of the L-shaped block (7) and the sliding block (8) relative to the position below the L-shaped plate (36). A positioning groove (38) is opened on the side of the straight groove (37) that is close to each other. The T-shaped block (35) is slidably connected to the positioning groove (38) in the transverse direction. The sliding block (8) is slidably connected to the rear side of the lifting box (4) in the longitudinal direction.

5. The wastewater treatment filter tank wall cleaning device according to claim 4, characterized in that, The front side of each L-shaped plate (36) is threaded with a stud (40), the side end of the stud (40) is rotatably connected to the side wall of the T-shaped block (35), the rear side of each T-shaped block (35) is fixedly connected with a positioning rod (41), and the top of each inner side of the lifting box (4) is provided with a pair of slots (42) that are compatible with the positioning rod (41).

6. The wastewater treatment filter tank wall cleaning device according to claim 5, characterized in that, The lifting box (4) has a maintenance plate (39) installed on the front side by bolts. A pair of vertical grooves (43) are provided on the front side of the maintenance plate (39) relative to the position next to the stud (40).

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