A winch-type decanting device

Abstract

This invention provides a winch-type decanting device, relating to the field of wastewater treatment technology. It includes a linear drive component mounted on one side wall of a wastewater tank. A movable rod is also installed inside the wastewater tank. The linear drive component drives the movable rod to move vertically. An electric actuator is mounted on the movable rod, and a connecting rod is mounted on the movable rod. A movable pipe is mounted at the lower end of the connecting rod, and a pipeline is rotatably connected to the movable pipe. A push rod is hinged to the pipeline, and the output end of the electric actuator is hinged to the push rod. A decanting mechanism is installed at the other end of the pipeline. Compared to traditional rotary decanters, by using a linear drive component, the entire decanting device can be moved vertically, and the decanting height can be adjusted in real time according to changes in the wastewater tank water level. It has a wider working range and higher effluent quality. Compared to traditional winch-type decanters, this device has a more compact drive structure, reduces footprint, simplifies maintenance, reduces working hours and downtime frequency, and saves costs.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a winch-type decanting device. Background Technology

[0002] The decanting unit is a core piece of equipment in wastewater treatment processes (such as SBR, CASS, and other intermittent activated sludge processes). It is primarily used to discharge the supernatant from the reaction tank after biochemical treatment, while retaining activated sludge and settled impurities. Its function directly affects the efficiency of wastewater treatment and the quality of the effluent. A drive system moves the decanting components vertically or horizontally, allowing them to collect the supernatant at a certain depth below the water level (to avoid sucking in scum or disturbing the sludge), and then discharge it outside the tank through pipelines.

[0003] Traditional rotary decanters are typically fixed to the side wall, decanting only a fixed area during operation. This results in uneven water quality and affects the quality of the effluent. Furthermore, traditional winch-type decanters rely on heavy-duty transmission equipment such as winches and wire ropes for vertical lifting. The entire drive system occupies a large amount of space around the pool, leading to low space utilization. Moreover, the mechanical transmission components of the winch are difficult to maintain, requiring professional disassembly and repair, resulting in high time and labor costs. Summary of the Invention

[0004] The present invention provides a winch-type decanting device to solve at least one of the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention discloses a winch-type decanting device, including a linear drive component installed on one side wall of a sewage tank. A movable rod is also provided inside the sewage tank. The linear drive component is used to drive the movable rod to move in the vertical direction. An electric actuator is installed on the movable rod, and a connecting rod is installed on the movable rod. A movable pipe is installed at the lower end of the connecting rod. A pipe is rotatably connected to the movable pipe. A push rod is hinged on the pipe. The output end of the electric actuator is hinged to the push rod. A decanting mechanism is installed on the other end of the pipe.

[0006] Preferably, the movable rod is slidably disposed inside the sewage tank, and a threaded rod is fixedly connected to the lower output end of the linear drive component. The threaded rod is threadedly connected to the movable rod, and a fixing block is rotatably disposed at the lower end of the threaded rod. The fixing block is fixedly connected to the inner wall of the sewage tank.

[0007] Preferably, a connecting rod is symmetrically fixed at the lower end of the moving rod, and a moving pipe is fixedly connected to the lower end of the connecting rod. Drainage pipes are provided at both ends of the moving pipe, and a sleeve is rotatably installed through the center of the moving pipe. A through hole is opened on the sleeve, and a pipe is installed at the through hole.

[0008] Preferably, the decanting mechanism includes symmetrically arranged mounting rods, which are fixedly mounted on the pipe. A U-shaped plate is fixedly mounted on the mounting rod, and a movable block is set inside the U-shaped plate. Connecting blocks are symmetrically mounted on the movable blocks, and a U-shaped frame is connected to the two connecting blocks. A decanting cylinder is set inside the U-shaped frame, and two filter hole areas are symmetrically opened on the decanting cylinder. The filter hole areas include a number of filter holes.

[0009] Preferably, a drive motor is fixedly installed on one side wall of the U-shaped plate, and a threaded rod is fixedly connected to the output end of the drive motor. The threaded rod is rotatably connected to the U-shaped plate, and a moving block is threadedly connected to the threaded rod.

[0010] Preferably, one end of the decanter is fixedly connected to a connecting pipe, and the other end of the connecting pipe is slidably connected to a fixed pipe. The fixed pipe passes through the U-shaped frame and the other end of the fixed pipe is connected to a decanting pipe, which is connected to the pipeline. A drive rod is fixedly installed at an eccentric position at the other end of the decanter, and a roller is installed on the drive rod. Several trapezoidal blocks are provided on the U-shaped plate, and the roller abuts against the trapezoidal blocks.

[0011] Preferably, a square sleeve is fixedly installed at the other end of the decanter, a square plate is slidably installed inside the square sleeve, a square rod is fixedly installed at one end of the square plate, the square rod slidably extends out of the square sleeve, a spring is sleeved on the square rod, one end of the spring is fixedly connected to the square plate, the other end of the spring is fixedly connected to the square sleeve, a square groove is opened on the U-shaped plate, and the square rod cooperates with the square groove.

[0012] Preferably, a square groove is also provided on the U-shaped plate, one end of which is connected to the square groove, and a gear is fixedly installed on the square rod. A toothed plate is provided inside the square groove, and the toothed plate cooperates with the gear.

[0013] Preferably, cleaning boxes are symmetrically fixed on the U-shaped frame, and through grooves are opened on the side walls of the cleaning boxes that are close to each other. Cleaning plates are slidably arranged in the through grooves, and several bristles are fixedly arranged on the side of the cleaning plates that are close to each other.

[0014] Preferably, a push block is fixedly installed at one end of the sweeping plate, the push block is slidably connected to the through groove, an extension rod is installed on the push block, a push rod is rotatably connected to the extension rod, a gear two is rotatably connected inside the sweeping box, and the other end of the push rod is hinged to the eccentric position of the gear two; racks are also symmetrically installed on the U-shaped plate, and the racks are meshed with the gear two.

[0015] Compared with the prior art, the present invention provides a winch-type decanting device with the following advantages: Compared with the traditional rotary decanter, by setting a linear drive component, the entire decanting device can be moved vertically, and the decanting height can be adjusted in real time according to the changes in the water level of the sewage tank, ensuring that the decanting mechanism is always in the optimal working position. Its working range is larger and the effluent quality is higher. Compared with the traditional winch-type decanter, the drive structure of this device is more compact, the footprint is reduced, the maintenance is simpler, ordinary personnel can maintain it, reducing working hours and downtime frequency, and saving costs. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 For the present invention Figure 1 Partial structural side view;

[0019] Figure 3 For the present invention Figure 1 Partial top view of the structure;

[0020] Figure 4 For the present invention Figure 3 Enlarged view of part of the structure;

[0021] Figure 5 This is a schematic diagram of the decanting mechanism of the present invention;

[0022] Figure 6 This is a schematic diagram of the U-shaped plate of the present invention;

[0023] Figure 7 This is a schematic diagram illustrating the fit between the square rod and the square sleeve of the present invention.

[0024] Figure 8 This is a schematic diagram of the internal structure of the cleaning box of the present invention.

[0025] In the diagram: 1. Sewage tank; 2. Drainage pipe; 3. Moving pipe; 4. Connecting rod; 5. Fixing block; 6. Moving rod; 7. Threaded rod one; 8. Linear drive component; 9. Electric actuator; 10. Push rod; 11. Decanting mechanism; 12. Pipe; 13. Sleeve; 14. Through hole; 15. Mounting rod; 16. U-shaped plate; 17. Drive motor; 18. Decanting cylinder; 19. Threaded rod two; 20. Moving block; 21. U-shaped frame; 22. Connection 23. Block; 24. Rack; 25. Filter hole; 26. Connecting pipe; 27. Brush bristles; 28. Cleaning box; 29. ​​Drive rod; 30. Roller; 31. Decanting pipe; 32. Trapezoidal block; 33. Gear one; 34. Square rod; 35. Tooth plate; 36. Square groove; 37. Square groove; 38. Spring; 39. Square sleeve; 40. Gear two; 41. Push rod; 42. Push block; 43. Cleaning plate; 44. Through groove. Detailed Implementation

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on the specific circumstances. Example 1

[0029] Embodiments of the present invention provide a winch-type decanting device, such as... Figures 1-8As shown, it includes a linear drive 8, which is installed on one side wall of the sewage tank 1. A moving rod 6 is also provided inside the sewage tank 1. The linear drive 8 is used to drive the moving rod 6 to move in the vertical direction. An electric push rod 9 is installed on the moving rod 6. A connecting rod 4 is installed on the moving rod 6. A moving pipe 3 is installed at the lower end of the connecting rod 4. A pipe 12 is rotatably connected to the moving pipe 3. A push rod 10 is hinged on the pipe 12. The output end of the electric push rod 9 is hinged to the push rod 10. A decanting mechanism 11 is installed on the other end of the pipe 12.

[0030] The working principle and beneficial effects of the above technical solution are as follows: The linear drive component 8 (such as an electric push rod, hydraulic cylinder, motor, etc.) drives the moving rod 6 to rise and fall in the vertical direction, thereby realizing the positioning of the decanting device at different heights in the sewage tank; After the electric push rod 9 on the moving rod 6 is started, its output end pushes and pulls the push rod 10. The pushing and pulling action will cause the pipe 12 to swing around its rotation connection point with the moving pipe 3, thereby driving the decanting mechanism 11 to swing and adjust the decanting position. The decanting mechanism 11 is immersed to a specific depth below the liquid surface, and the supernatant is drained through the pipe 12 to achieve solid-liquid separation;

[0031] Compared to traditional rotary decanters, this device, by incorporating a linear drive component 8, can move the entire decanting unit vertically. The decanting height can be adjusted in real time according to changes in the water level of the sewage tank 1, ensuring that the decanting mechanism 11 is always in the optimal operating position. It has a larger working range and higher effluent quality. Compared to traditional winch-type decanters, this device has a more compact drive structure, occupies less space, and is easier to maintain. Ordinary personnel can perform maintenance, reducing working hours and downtime frequency, and saving costs. Example 2

[0032] Based on the above embodiment 1, as follows Figures 1-3 As shown, the movable rod 6 is slidably disposed inside the sewage tank 1. The lower output end of the linear drive component 8 is fixedly connected to a threaded rod 7, which is threadedly connected to the movable rod 6. A fixing block 5 is rotatably disposed at the lower end of the threaded rod 7, and the fixing block 5 is fixedly connected to the inner wall of the sewage tank 1.

[0033] Preferably, a connecting rod 4 is symmetrically fixed at the lower end of the moving rod 6, and the lower end of the connecting rod 4 is fixedly connected to the moving pipe 3. Drainage pipes 2 are provided at both ends of the moving pipe 3. A sleeve 13 is rotatably installed through the center of the moving pipe 3. A through hole 14 is opened on the sleeve 13, and a pipe 12 is installed at the through hole 14.

[0034] The working principle and beneficial effects of the above technical solution are as follows: The lower output end of the linear drive component 8 (such as a motor) drives the threaded rod 7 to rotate. The rotation of the threaded rod 7 is converted into the vertical lifting and lowering movement of the moving rod 6 along the threaded rod 7. The moving rod 6 drives the connecting rod 4 and the moving pipe 3 to move together. After moving to the position (the position for decanting sewage), the electric push rod 9 drives the push rod 10. The push rod 10 is hinged to the pipe 12. Through the push and pull action, the pipe 12 swings around the rotation center of the sleeve 13, adjusting the horizontal position of the decanting mechanism 11. The supernatant collected by the decanting mechanism 11 is discharged from the drain pipes 2 at both ends of the moving pipe 3.

[0035] The vertical position of the decanting mechanism 11 can be adjusted according to the liquid level in the sewage tank by controlling the raising and lowering of the moving rod 6 via the linear drive component 8, thus avoiding incomplete decanting or the intake of bottom sludge due to liquid level fluctuations. The electric actuator 9 drives the push rod 10 to swing the pipe 12, which can realize the horizontal angle adjustment of the decanting mechanism 11, covering a larger liquid surface area and improving the uniformity of decanting. Combining vertical and horizontal movements, the device can be precisely positioned in three-dimensional space and is suitable for sewage tanks of different shapes (such as rectangular and circular). The moving rod 6, connecting rod 4, moving pipe 3 and other components are integrated on one side of the sewage tank, occupying little space and making it easy to install in the renovation of existing sewage treatment tanks. Dynamically adjusting the decanting position can reduce the suspended solids content in the supernatant and improve the quality of the effluent. Example 3

[0036] Based on the above embodiments 1-2, such as Figure 1 , Figures 4-5 As shown, the decanting mechanism 11 includes symmetrically arranged mounting rods 15, which are fixedly mounted on the pipe 12. A U-shaped plate 16 is fixedly mounted on the mounting rods 15. A movable block 20 is arranged inside the U-shaped plate 16. Connecting blocks 22 are symmetrically mounted on the movable blocks 20. A U-shaped frame 21 is connected to the two connecting blocks 22. A decanting cylinder 18 is arranged inside the U-shaped frame 21. Two filter hole areas are symmetrically opened on the decanting cylinder 18. The filter hole areas include a number of filter holes 24.

[0037] Preferably, a drive motor 17 is fixedly installed on one side wall of the U-shaped plate 16, and a threaded rod 19 is fixedly connected to the output end of the drive motor 17. The threaded rod 19 is rotatably connected to the U-shaped plate 16, and a moving block 20 is threadedly connected to the threaded rod 19.

[0038] The working principle and beneficial effects of the above technical solution are as follows: After the drive motor 17 starts, it drives the threaded rod 19 to rotate. The threaded rod 19 is connected to the moving block 20 by a thread. Since the U-shaped plate 16 restricts the rotational freedom of the moving block 20, the rotation of the threaded rod 19 is converted into the horizontal linear movement of the moving block 20 along the threaded rod 19. The moving block 20 drives the U-shaped frame 21 and the decanting cylinder 18 to move synchronously. The decanting cylinder 18 can maintain a vertical posture in the U-shaped frame 21. Its symmetrical filter area (filter hole 24) faces the liquid surface of the sewage tank. By adjusting the position of the moving block 20, the decanting position of the decanting cylinder 18 can be changed, thereby adjusting the decanting range.

[0039] The filter holes 24 in the filter area can intercept large suspended particles (such as floating objects and sludge flocs) in the sewage, preventing them from entering the pipe 12 and reducing the risk of subsequent pipe blockage. The symmetrical filter hole design ensures that the decanter 18 maintains bidirectional water intake during movement, balancing water flow resistance and improving decanting stability.

[0040] Through vertical lifting (moving rod 6) and rotational swing (pipeline 12), the decanting mechanism 11 can move in three dimensions: vertical lifting + horizontal swing + lateral translation, to achieve full coverage of the liquid surface of the sewage tank 1. It is more practical and functional, and achieves a decanting effect with all-round and multi-point coverage. Example 4

[0041] Based on the above embodiment 3, such as Figures 5-7 As shown, a connecting pipe 25 is fixedly connected to one end of the decanter 18, and a fixed pipe is slidably connected to the other end of the connecting pipe 25. The fixed pipe passes through the U-shaped frame 21 and a decanting pipe 30 is connected to the other end of the fixed pipe. The decanting pipe 30 is connected to the pipe 12. A drive rod 28 is fixedly installed at an eccentric position at the other end of the decanter 18. A roller 29 is installed on the drive rod 28. Several trapezoidal blocks 31 are provided on the U-shaped plate 16. The roller 29 abuts against the trapezoidal blocks 31.

[0042] Preferably, a square sleeve 39 is fixedly provided at the other end of the decanting cylinder 18, a square plate 37 is slidably provided inside the square sleeve 39, a square rod 33 is fixedly provided at one end of the square plate 37, the square rod 33 slidably extends out of the square sleeve 39, a spring 38 is sleeved on the square rod 33, one end of the spring 38 is fixedly connected to the square plate 37, the other end of the spring 38 is fixedly connected to the square sleeve 39, a square groove 35 is provided on the U-shaped plate 16, and the square rod 33 cooperates with the square groove 35.

[0043] The working principle and beneficial effects of the above technical solution are as follows: When the decanter 18 moves horizontally with the moving block 20 (controlled by the drive motor 17 of embodiment 3), the roller 29 at one end contacts the trapezoidal block 31 on the U-shaped plate 16. The inclined surface of the trapezoidal block 31 (the inclination angle is usually 15°-30°) pushes the roller 29, which in turn drives the decanter 18 to move horizontally through the drive rod 28. The decanter 18 drives the square sleeve 39 to move, the square plate 37 slides in the square sleeve 39, the spring 38 is stretched, and the square rod 33 will not leave the square groove 35, thereby realizing the change of position of the decanter 18; the decanter 18 slides in the fixed pipe through the connecting pipe 25, maintaining communication with the pipe 12 and ensuring continuous discharge of the supernatant;

[0044] The horizontal movement of the decanter 18 (moving in both the X and Y axes) combined with the swinging of the pipe 12 can cover most of the surface area of ​​the sewage tank, reducing dead zones. In addition, during the horizontal movement, the water flow continuously flushes the filter area, and combined with the "pushing" effect of the inclined surface of the trapezoidal block 31, it can help to peel off the attached impurities and reduce the risk of clogging of the filter holes 24 caused by the retention of suspended solids. Example 5

[0045] Based on the above embodiment 4, such as Figures 5-7 As shown, a square groove 36 is also provided on the U-shaped plate 16. One end of the square groove 35 is connected to the square groove 36. A gear 32 is fixedly installed on the square rod 33. A toothed plate 34 is provided in the square groove 35. The toothed plate 34 cooperates with the gear 32.

[0046] The engagement between the toothed plate 34 and the gear 32 will cause the gear 32 to rotate 180°, after which the square rod 33 will normally enter the square groove 35. The engagement between the square rod 33 and the square groove 35 will not fail due to the rotation angle.

[0047] The working principle and beneficial effects of the above technical solution are as follows: the decanter 18 moves synchronously, and the square rod 33 at one end slides in the square groove 35. As the square rod 33 continues to slide, it will enter the square groove 36 (at this time, the square groove 36 will not restrict the rotation of the square rod 33). The toothed plate 34 will mesh with the gear 32, thereby causing the gear 32 to start rotating. The gear 32 drives the square rod 33 to rotate, and the square rod 33 drives the square sleeve 39 and the decanter 18 to rotate together, thereby changing the position of the filter hole area. Several bristles 26 will sweep the filter hole area and peel off the suspended matter (such as fibers and flocs) attached to the filter hole 24, realizing the linkage of "movement + rotation + cleaning". Example 6

[0048] Based on the above embodiment 5, such as Figure 5-Figure 8As shown, cleaning boxes 27 are symmetrically fixed on the U-shaped frame 21. A through groove 44 is opened on the side wall of the cleaning boxes 27 that are close to each other. A cleaning plate 43 is slidably arranged in the through groove 44. Several bristles 26 are fixedly arranged on the side of the cleaning plate 43 that are close to each other.

[0049] Preferably, a push block 42 is fixedly provided at one end of the sweeping plate 43, the push block 42 is slidably connected to the through groove 44, an extension rod is provided on the push block 42, a push rod 41 is rotatably connected to the extension rod, a gear 40 is rotatably connected inside the sweeping box 27, and the other end of the push rod 41 is hinged to the eccentric position of the gear 40; a rack 23 is also symmetrically installed on the U-shaped plate 16, and the rack 23 is meshed with the gear 40.

[0050] The working principle and beneficial effects of the above technical solution are as follows: During the movement of the decanter 18 (according to...) Figure 6 As shown, when the square rod 33 and square groove 35 are about to disengage or initially enter, gear 20 and rack 23 begin to mesh. During the process of gear plate 34 and gear 1 32 engaging, gear 20 and rack 23 always remain engaged. Gear 20 and rack 23 engage, causing gear 20 to rotate. The push rod 41, which is eccentrically hinged to gear 20, converts the rotational motion into the reciprocating linear motion of the cleaning plate 43. The bristles 26 then sweep the surface of the filter hole area. This process is synchronized with the translation and rotation of the decanting cylinder 18, forming a triple cleaning action of "horizontal movement + rotational switching of filter holes + reciprocating cleaning of bristles".

[0051] Through the coordinated operation of multiple structures, the performance of the winch-type decanting device is comprehensively improved. The linear drive component 8 and the threaded rod 7 work together to precisely control the vertical lifting and lowering of the moving rod 6. The electric push rod 9 is linked to the swing of the pipe 12. Combined with the drive motor 17 and the threaded rod 19, the decanting cylinder 18 is driven to move horizontally, achieving precise positioning in three-dimensional space. This ensures that the decanting mechanism 11 adapts to different sewage tank levels and shapes, thereby improving the quality of the effluent.

[0052] The filter area of ​​the decanting cylinder 18, in conjunction with the trapezoidal block 31, gear 1 32, and other structures, enables horizontal movement and rotation in conjunction with brush cleaning, effectively intercepting impurities and automatically clearing blockages, reducing the risk of pipe blockage. The combination of the cleaning box 27, gear 2 40, and rack 23 further enhances the cleaning effect of the filter holes 24. The overall structure is compact, occupies little space, and is easy to maintain. The optimized drive system reduces costs, and the multi-component linkage achieves efficient, intelligent, and durable decanting operations, significantly improving sewage treatment efficiency and equipment reliability.

[0053] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

Claims

1. A winch-type decanting device, characterized in that, The system includes a linear drive (8), which is installed on one side wall of the sewage tank (1). A moving rod (6) is also provided inside the sewage tank (1). The linear drive (8) is used to drive the moving rod (6) to move in the vertical direction. An electric push rod (9) is installed on the moving rod (6). A connecting rod (4) is installed on the moving rod (6). A moving pipe (3) is installed at the lower end of the connecting rod (4). A pipe (12) is rotatably connected to the moving pipe (3). A push rod (10) is hinged on the pipe (12). The output end of the electric push rod (9) is hinged to the push rod (10). A decanting mechanism (11) is installed at the other end of the pipe (12). The decanting mechanism (11) includes symmetrically arranged mounting rods (15), which are fixedly mounted on the pipe (12). A U-shaped plate (16) is fixedly mounted on the mounting rod (15), and a movable block (20) is provided inside the U-shaped plate (16). A connecting block (22) is symmetrically mounted on the movable block (20), and a U-shaped frame (21) is connected to the two connecting blocks (22). A decanting cylinder (18) is provided inside the U-shaped frame (21), and two filter hole areas are symmetrically opened on the decanting cylinder (18). The filter hole areas include a number of filter holes (24).

2. The winch-type decanting device according to claim 1, characterized in that, The movable rod (6) is slidably set inside the sewage tank (1). The lower output end of the linear drive component (8) is fixedly connected to the threaded rod (7). The threaded rod (7) is threadedly connected to the movable rod (6). The lower end of the threaded rod (7) is rotatably set with a fixing block (5). The fixing block (5) is fixedly connected to the inner wall of the sewage tank (1).

3. A winch-type decanting device according to claim 2, characterized in that, A connecting rod (4) is symmetrically fixed at the lower end of the moving rod (6). The lower end of the connecting rod (4) is fixedly connected to the moving pipe (3). Drain pipes (2) are provided at both ends of the moving pipe (3). A sleeve (13) is rotatably installed through the center of the moving pipe (3). A through hole (14) is opened on the sleeve (13). A pipe (12) is installed at the through hole (14).

4. A winch-type decanting device according to claim 1, characterized in that, A drive motor (17) is fixedly installed on one side wall of the U-shaped plate (16). A threaded rod (19) is fixedly connected to the output end of the drive motor (17). The threaded rod (19) is rotatably connected to the U-shaped plate (16). A moving block (20) is threadedly connected to the threaded rod (19).

5. A winch-type decanting device according to claim 1, characterized in that, One end of the decanter (18) is fixedly connected to a connecting pipe (25), and the other end of the connecting pipe (25) is slidably connected to a fixed pipe. The fixed pipe passes through the U-shaped frame (21) and the other end of the fixed pipe is connected to a decanting pipe (30). The decanting pipe (30) is connected to the pipe (12). A drive rod (28) is fixedly installed at the eccentric position of the other end of the decanter (18). A roller (29) is installed on the drive rod (28). Several trapezoidal blocks (31) are provided on the U-shaped plate (16). The roller (29) abuts against the trapezoidal blocks (31).

6. A winch-type decanting device according to claim 5, characterized in that, A square sleeve (39) is fixedly installed at the other end of the decanter (18). A square plate (37) is slidably installed inside the square sleeve (39). A square rod (33) is fixedly installed at one end of the square plate (37). The square rod (33) extends slidably out of the square sleeve (39). A spring (38) is sleeved on the square rod (33). One end of the spring (38) is fixedly connected to the square plate (37). The other end of the spring (38) is fixedly connected to the square sleeve (39). A square groove (35) is opened on the U-shaped plate (16). The square rod (33) cooperates with the square groove (35).

7. A winch-type decanting device according to claim 6, characterized in that, A square groove (36) is also provided on the U-shaped plate (16). One end of the square groove (35) is connected to the square groove (36). A gear (32) is fixedly installed on the square rod (33). A toothed plate (34) is provided in the square groove (35). The toothed plate (34) cooperates with the gear (32).

8. A winch-type decanting device according to claim 5, characterized in that, A cleaning box (27) is symmetrically fixed on the U-shaped frame (21). A through groove (44) is opened on the side wall of the cleaning box (27) that is close to each other. A cleaning plate (43) is slidably arranged in the through groove (44). Several bristles (26) are fixedly arranged on the side of the cleaning plate (43) that is close to each other.

9. A winch-type decanting device according to claim 8, characterized in that, A push block (42) is fixedly installed at one end of the cleaning plate (43). The push block (42) is slidably connected to the through groove (44). An extension rod is provided on the push block (42). A push rod (41) is rotatably connected to the extension rod. A gear two (40) is rotatably connected inside the cleaning box (27). The other end of the push rod (41) is hinged to the eccentric position of the gear two (40). A rack (23) is also symmetrically installed on the U-shaped plate (16). The rack (23) meshes with the gear two (40).

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