Winding type water decanting device

Abstract

The invention provides a winch type water decanting device, and relates to the technical field of sewage treatment, the winch type water decanting device comprises a linear driving part, the linear driving part is installed on one side wall of a sewage pool, a moving rod is further arranged in the sewage pool, the linear driving part is used for driving the moving rod to move in the vertical direction, an electric push rod is installed on the moving rod, and a connecting rod is installed on the moving rod; a moving pipe is mounted at the lower end of the connecting rod, a pipeline is rotationally connected to the moving pipe in a penetrating manner, a push rod is hinged to the pipeline, the output end of the electric push rod is hinged to the push rod, and a decanting mechanism is mounted at the other end of the pipeline. Compared with a traditional rotary water decanter, by arranging the linear driving piece, the whole water decanting device can be driven to move in the vertical direction, the water decanting height can be adjusted in real time according to the water level change of a sewage pool, the working range is larger, and the water outlet quality is higher; compared with a traditional winch type water decanter, the device is more compact in driving structure, smaller in occupied area, simpler to overhaul, lower in working time and shutdown frequency and lower in cost.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and particularly to a winch type water decanting device. Background Art

[0002] The water decanting device is a core equipment in sewage treatment processes (such as intermittent activated sludge processes like SBR method, CASS method, etc.), mainly used to discharge the supernatant after biochemical treatment in the reaction tank, while retaining the activated sludge and sediment impurities. Its function directly affects the efficiency of sewage treatment and the quality of the effluent. By driving the decanting component to move vertically or horizontally through the drive system, it collects the supernatant at a certain depth below the water level (to avoid sucking in scum or disturbing the sludge) and discharges it out of the tank through a pipeline.

[0003] Traditional rotary water decanters are generally fixedly installed on the side wall. During operation, they can only decant water in a fixed partial area, and the decanting range only covers a local area of the tank body, resulting in uneven water quality and affecting the quality of the effluent. In addition, traditional winch type water decanters rely on heavy transmission equipment such as winches and steel wires to achieve vertical lifting. The entire drive system needs to occupy a large amount of space around the tank body, with low space utilization rate. Moreover, the maintenance of the mechanical transmission components of the winch is difficult and requires professional personnel to disassemble and repair, resulting in high time and labor costs. Summary of the Invention

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

[0005] To solve the above technical problems, the present invention discloses a winch type water decanting device, including a linear drive member installed on one side wall of the sewage tank. A moving rod is also arranged in the sewage tank. The linear drive member is used to drive the moving rod to move in the vertical direction. An electric push rod is installed on the moving rod, and a connecting rod is installed on the moving rod. The lower end of the connecting rod is installed with a moving pipe. A pipeline is rotatably and penetratingly connected to the moving pipe. A push rod is hinged to the pipeline. The output end of the electric push rod is hinged to the push rod. The other end of the pipeline is installed with a water decanting mechanism.

[0006] Preferably, the moving rod is slidably arranged in the sewage tank. The lower output end of the linear drive member is fixedly connected with a first threaded rod, and the first threaded rod is threadedly connected to the moving rod. The lower end of the first threaded rod is rotatably provided with a fixed block, and the fixed block is fixedly connected to the inner wall of the sewage tank.

[0007] Preferably, the lower end of the moving rod is symmetrically and fixedly provided with connecting rods, the lower ends of the connecting rods are fixedly connected with the moving pipe, drain pipes are arranged at both ends of the moving pipe, a sleeve is rotatably and centrally installed in the moving pipe, through holes are provided in the sleeve, and the pipeline is installed at the through holes.

[0008] Preferably, the water decanting mechanism includes mounting rods symmetrically arranged. The mounting rods are fixedly arranged on the pipeline. A U-shaped plate is fixedly arranged on the mounting rods. A moving block is arranged inside the U-shaped plate. Connecting blocks are symmetrically mounted on the moving block. A U-shaped frame is connected to the two connecting blocks. A water decanting cylinder is arranged inside the U-shaped frame. Two filter hole areas are symmetrically formed on the water decanting cylinder. The filter hole area includes a number of filter holes.

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

[0010] Preferably, one end of the water decanting cylinder is fixedly connected through a communicating pipe. The other end of the communicating pipe is slidably connected through a fixed pipe. The fixed pipe fixedly passes through the U-shaped frame. The other end of the fixed pipe is connected through a water decanting pipe. The water decanting pipe is connected to the pipeline in a penetrating manner; an eccentric position at the other end of the water decanting cylinder is fixedly provided with a driving rod. A roller is mounted on the driving rod. A number of trapezoidal blocks are arranged on the U-shaped plate. The roller abuts against the trapezoidal blocks.

[0011] Preferably, a square sleeve is fixedly arranged at the other end of the water decanting cylinder. A square plate is slidably arranged inside the square sleeve. One end of the square plate is fixedly provided with a square rod. 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 formed on the U-shaped plate. The square rod cooperates with the square groove.

[0012] Preferably, a square groove is further formed on the U-shaped plate. One end of the square groove communicates with the square groove. A first gear is further fixedly arranged on the square rod. A toothed plate is arranged inside the square groove. The toothed plate cooperates with the first gear.

[0013] Preferably, cleaning boxes are symmetrically and fixedly arranged on the U-shaped frame. Through grooves are formed on the side walls of the cleaning boxes close to each other. A cleaning plate is slidably arranged inside the through grooves. A number of bristles are fixedly arranged on the side of the cleaning plate close to each other.

[0014] Preferably, a pushing block is fixedly arranged at one end of the cleaning plate. The pushing block is slidably connected to the through groove. An extending rod is arranged on the pushing block. A push rod is rotatably connected to the extending rod. A second gear is rotatably connected inside the cleaning box. The other end of the push rod is hinged at an eccentric position of the second gear; racks are symmetrically mounted on the U-shaped plate. The racks are meshed with the second gear.

[0015] Compared with the prior art, the present invention provides a winch type water decanting device, which has the following beneficial effects. Compared with the traditional rotary water decanter, by setting a linear drive member, the entire water decanting device can be driven to move in the vertical direction, and the water decanting height can be adjusted in real time according to the change of the sewage pool water level, ensuring that the water decanting mechanism is always in the best working position, with a larger working range and higher water outlet quality. Compared with the traditional winch type water decanter, the drive structure of this device is more compact, occupies less land, is easier to overhaul, and can be maintained by ordinary personnel, reducing working hours and shutdown frequency, and saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings: Figure 1 is a schematic structural view of the present invention; Figure 2 is of the present invention Figure 1 partial structural side view; Figure 3 is of the present invention Figure 1 partial structural top view; Figure 4 is of the present invention Figure 3 partial structural enlarged view; Figure 5 is a schematic structural view of the water decanting mechanism of the present invention; Figure 6 is a schematic structural view of the U-shaped plate of the present invention; Figure 7 is a schematic view of the cooperation between the square rod and the square sleeve of the present invention; Figure 8 is a schematic view of the internal structure of the cleaning box of the present invention.

[0017] In the figure: 1, sewage pool; 2, drain pipe; 3, moving pipe; 4, connecting rod; 5, fixed block; 6, moving rod; 7, first threaded rod; 8, linear drive member; 9, electric push rod; 10, push rod; 11, water decanting mechanism; 12, pipe; 13, sleeve; 14, through hole; 15, mounting rod; 16, U-shaped plate; 17, drive motor; 18, water decanting cylinder; 19, second threaded rod; 20, moving block; 21, U-shaped frame; 22, connecting block; 23, rack; 24, filter hole; 25, communicating pipe; 26, brush hair; 27, cleaning box; 28, drive rod; 29, roller; 30, water decanting pipe; 31, trapezoidal block; 32, first gear; 33, square rod; 34, toothed plate; 35, square groove; 36, rectangular groove; 37, square plate; 38, spring; 39, square sleeve; 40, second gear; 41, push rod; 42, pushing block; 43, cleaning plate; 44, through slot. Detailed implementation manners

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. Embodiment 1

[0021] An embodiment of the present invention provides a winch type water decanting device, as Figures 1-8 shown, which includes a linear drive member 8 installed on a side wall of a sewage tank 1. A moving rod 6 is also arranged in the sewage tank 1. The linear drive member 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 rotationally and penetratingly connected to the moving pipe 3, a push rod 10 is hinged to the pipe 12, the output end of the electric push rod 9 is hinged to the push rod 10, and a water decanting mechanism 11 is installed at the other end of the pipe 12.

[0022] The working principle and beneficial effects of the above technical solution are as follows: The linear drive member 8 (such as an electric push rod, a hydraulic cylinder, a motor, etc.) drives the moving rod 6 to move up and down in the vertical direction, realizing the positioning of the water decanting device at different height positions 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, and the pushing and pulling action will cause the pipeline 12 to swing around its rotational connection point with the moving pipe 3, thereby driving the water decanting mechanism 11 to swing, adjusting the water decanting position, the water decanting mechanism 11 is immersed to a specific depth below the liquid level, and the supernatant liquid is drained out through the pipeline 12 to realize solid-liquid separation; Compared with the traditional rotary water decanter, by setting the linear drive member 8, the whole water decanting device can be driven to move in the vertical direction, and the water decanting height can be adjusted in real time according to the water level change of the sewage tank 1, ensuring that the water decanting mechanism 11 is always in the best working position, with a larger working range and higher water outlet quality; compared with the traditional winch type water decanter, the drive structure of this device is more compact, occupies less land, is easier to overhaul, and can be maintained by ordinary personnel, reducing working hours and shutdown frequency, and saving costs. Embodiment 2

[0023] On the basis of the above Embodiment 1, as Figures 1-3 shown, the moving rod 6 is slidably arranged in the sewage tank 1, the lower output end of the linear drive member 8 is fixedly connected with a first threaded rod 7, the first threaded rod 7 is threadedly connected with the moving rod 6, and the lower end of the first threaded rod 7 is rotatably provided with a fixed block 5, and the fixed block 5 is fixedly connected with the inner wall of the sewage tank 1.

[0024] Among them, preferably, connecting rods 4 are symmetrically and fixedly arranged at the lower end of the moving rod 6, the lower ends of the connecting rods 4 are fixedly connected with the moving pipe 3, drain pipes 2 are arranged at both ends of the moving pipe 3, a sleeve 13 is rotatably installed through the center of the moving pipe 3, through holes 14 are formed in the sleeve 13, and the pipeline 12 is installed at the through holes 14.

[0025] The working principle and beneficial effects of the above technical solution are as follows: The lower output end of the linear drive member 8 (such as a motor) drives the first threaded rod 7 to rotate, and the rotation of the first threaded rod 7 is converted into the vertical lifting movement of the moving rod 6 along the first threaded rod 7, and the moving rod 6 drives the connecting rod 4 and the moving pipe 3 to move together. After moving in place (the position for decanting sewage); the electric push rod 9 drives the push rod 10, the push rod 10 is hinged to the pipeline 12, and the pipeline 12 is swung around the rotation center of the sleeve 13 through the pushing and pulling action to adjust the horizontal position of the water decanting mechanism 11, and the supernatant liquid collected by the water decanting mechanism 11 is discharged from the drain pipes 2 at both ends of the moving pipe 3; The lifting of the moving rod 6 is controlled by the linear driving member 8, and the vertical position of the water decanting mechanism 11 can be adjusted according to the level of the sewage tank, avoiding incomplete water decanting or suction of bottom sludge caused by liquid level fluctuations; the electric push rod 9 drives the push rod 10 to swing the pipeline 12, enabling the angle adjustment of the water decanting mechanism 11 in the horizontal direction, covering a larger liquid surface area and improving the uniformity of water decanting; by combining vertical and horizontal movements, the device can be accurately positioned in three-dimensional space, suitable for sewage tanks of different shapes (such as rectangular and circular). Components such as the moving rod 6, connecting rod 4, and moving pipe 3 are integrated on one side of the sewage tank, occupying a small space and facilitating installation in the renovation of existing sewage treatment tanks; dynamically adjusting the water decanting position can reduce the content of suspended solids in the supernatant and improve the water quality of the effluent. Embodiment 3

[0026] Based on the above-mentioned Embodiments 1-2, as Figure 1 、 Figures 4-5 shown, the water decanting mechanism 11 includes symmetrically arranged mounting rods 15. The mounting rods 15 are fixedly arranged on the pipeline 12. A U-shaped plate 16 is fixedly arranged on the mounting rods 15. A moving block 20 is arranged inside the U-shaped plate 16. Connecting blocks 22 are symmetrically mounted on the moving block 20. A U-shaped frame 21 is connected to the two connecting blocks 22. A water decanting cylinder 18 is arranged inside the U-shaped frame 21. Two filter hole areas are symmetrically opened on the water decanting cylinder 18. Each filter hole area includes a number of filter holes 24.

[0027] Among them, preferably, a driving motor 17 is fixedly arranged on one side wall of the U-shaped plate 16. The output end of the driving motor 17 is fixedly connected with a second threaded rod 19. The second threaded rod 19 is rotatably connected with the U-shaped plate 16. The moving block 20 is threadedly connected to the second threaded rod 19.

[0028] The working principle and beneficial effects of the above technical solution are as follows: After the driving motor 17 is started, it drives the second threaded rod 19 to rotate. The second threaded rod 19 is threadedly connected with the moving block 20. Since the U-shaped plate 16 restricts the rotational freedom of the moving block 20, the rotation of the second threaded rod 19 is converted into the horizontal linear movement of the moving block 20 along the second threaded rod 19. The moving block 20 drives the U-shaped frame 21 and the water decanting cylinder 18 to move synchronously. The water decanting cylinder 18 can maintain a vertical posture inside the U-shaped frame 21. Its symmetric filter hole areas (filter holes 24) face the liquid surface of the sewage tank. By adjusting the position of the moving block 20, the water decanting position of the water decanting cylinder 18 can be changed, thereby adjusting the water decanting range; The filter holes 24 in the filter hole area can intercept large particle suspended solids (such as floating objects and sludge flocs) in the sewage, preventing them from entering the pipeline 12 and reducing the risk of subsequent pipeline blockage; the design of the symmetric filter hole areas enables the water decanting cylinder 18 to always have two-way water inlet during the movement, balancing the water flow resistance and improving the stability of water decanting.

[0029] By vertically lifting (moving rod 6) and rotating and swinging (pipe 12), the water decanting mechanism 11 can move in three dimensions of "vertical lifting + horizontal swinging + lateral translation", achieving full-area coverage of the liquid surface of the sewage tank 1, with stronger practicality and functionality, and realizing the water decanting effect of all-round and multi-point coverage. Embodiment 4

[0030] Based on the above Embodiment 3, as Figures 5-7 shown, one end of the water decanting cylinder 18 is fixedly connected through penetration with a communicating pipe 25, the other end of the communicating pipe 25 is slidably connected through penetration with a fixed pipe, the fixed pipe fixedly passes through the U-shaped frame 21, the other end of the fixed pipe is connected through penetration with a water decanting pipe 30, and the water decanting pipe 30 is connected through penetration with the pipe 12; an eccentric position at the other end of the water decanting cylinder 18 is fixedly provided with a driving rod 28, a roller 29 is installed on the driving rod 28, and a plurality of trapezoidal blocks 31 are arranged on the U-shaped plate 16, and the roller 29 abuts against the trapezoidal blocks 31.

[0031] Among them, preferably, a square sleeve 39 is fixedly provided at the other end of the water decanting cylinder 18, a square plate 37 is slidably arranged in the square sleeve 39, one end of the square plate 37 is fixedly provided with a square rod 33, 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 with the square plate 37, the other end of the spring 38 is fixedly connected with the square sleeve 39, and a square groove 35 is formed on the U-shaped plate 16, and the square rod 33 is matched with the square groove 35.

[0032] The working principle and beneficial effects of the above technical solution are as follows: when the water decanting cylinder 18 moves horizontally with the moving block 20 (controlled by the driving motor 17 in Embodiment 3), the roller 29 at one end thereof contacts the trapezoidal blocks 31 on the U-shaped plate 16. The inclined surface of the trapezoidal block 31 (the inclination angle is usually 15° - 30°) will push the roller 29, and then drive the water decanting cylinder 18 to move horizontally through the driving rod 28. The water decanting cylinder 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 does not leave the square groove 35, so as to realize the change of the position of the water decanting cylinder 18; the water decanting cylinder 18 slides in the fixed pipe through the communicating pipe 25, keeps communicating with the pipe 12, and ensures the continuous discharge of the supernatant liquid; The horizontal movement of the water decanting cylinder 18 (moving in both the X-axis and Y-axis directions) in cooperation with the swinging of the pipe 12 can cover most areas of the liquid surface of the sewage tank, reduce dead corners. In addition, during the translation process, the water flow continuously flushes the filter hole area, combined with the "pushing" effect of the inclined surface of the trapezoidal block 31, which can assist in peeling off the attached impurities and reduce the risk of blockage of the filter holes 24 caused by the retention of suspended substances. Embodiment 5

[0033] Based on the above Embodiment 4, as Figures 5-7As shown, a square groove 36 is also formed on the U-shaped plate 16. One end of the square groove 35 communicates with the square groove 36. A first gear 32 is fixedly arranged on the square rod 33. A toothed plate 34 is arranged in the square groove 35, and the toothed plate 34 cooperates with the first gear 32.

[0034] Among them, the cooperation between the toothed plate 34 and the first gear 32 will cause the first gear 32 to rotate 180°. After that, the square rod 33 will normally enter the square groove 35, and the cooperation between the square rod 33 and the square groove 35 will not fail due to the rotation angle problem.

[0035] The working principle and beneficial effects of the above technical solution are as follows: The decanting cylinder 18 moves synchronously. The square rod 33 at one end thereof slides in the square groove 35. As the square rod 33 continuously slides, the square rod 33 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 first gear 32, so that the first gear 32 starts to rotate. The first gear 32 drives the square rod 33 to rotate, and the square rod 33 drives the square sleeve 39 and the decanting cylinder 18 to rotate together, so that the position of the filter hole area changes. A plurality of brush hairs 26 will sweep through the filter hole area to peel off the suspended substances (such as fibers, flocs) attached to the filter holes 24, realizing the linkage of "movement + rotation + cleaning". Embodiment 6

[0036] On the basis of the above Embodiment 5, as Figures 5-8 shown, cleaning boxes 27 are symmetrically and fixedly arranged on the U-shaped frame 21. Through grooves 44 are formed on the side walls of the cleaning boxes 27 close to each other. A cleaning plate 43 is slidably arranged in the through grooves 44. A plurality of brush hairs 26 are fixedly arranged on the side of the cleaning plate 43 close to each other.

[0037] Among them, preferably, a pushing block 42 is fixedly arranged at one end of the cleaning plate 43. The pushing block 42 is slidably connected with the through groove 44. An extending rod is arranged on the pushing block 42. A push rod 41 is rotatably connected to the extending rod. A second gear 40 is rotatably connected in the cleaning box 27. The other end of the push rod 41 is hinged at an eccentric position of the second gear 40; Rack bars 23 are symmetrically installed on the U-shaped plate 16, and the rack bars 23 are meshed and connected with the second gear 40.

[0038] The working principle and beneficial effects of the above technical solution are as follows: When the decanting cylinder 18 moves (according to Figure 6As shown, when the square rod 33 and the square groove 35 are close to being disengaged or initially entering, the gear 2 40 and the rack 23 begin to mesh, and during the process of the tooth plate 34 and the gear 1 32 cooperating, the gear 2 40 and the rack 23 always remain in meshing state). The gear 2 40 cooperates with the rack 23, so that the gear 2 40 rotates, and the push rod 41 eccentrically hinged to the gear 2 40 converts the rotational motion into the reciprocating linear motion of the cleaning plate 43, and the bristles 26 sweep the surface of the filter hole area accordingly. This process is synchronized with the translation and rotation of the decanting cylinder 18, forming a triple clearing action of "horizontal movement + rotation switching of filter holes + reciprocating cleaning of bristles".

[0039] Through the coordinated cooperation of multiple structures, the performance of the winch-type decanting device is comprehensively improved. The linear drive member 8 cooperates with the threaded rod 1 7 to accurately control the vertical lifting of the moving rod 6, the electric push rod 9 links the pipeline 12 to swing, and the driving motor 17 and the threaded rod 2 19 drive the decanting cylinder 18 to move horizontally, achieving precise three-dimensional positioning, ensuring that the decanting mechanism 11 adapts to different sewage pool liquid levels and shapes, and improving the quality of water output; The filter hole area of ​​the decanting barrel 18 cooperates with the trapezoidal block 31, gear 1 32 and other structures to achieve horizontal movement and rotation with brush cleaning, effectively intercepting impurities and automatically clearing blockages, reducing the risk of pipeline blockage; the combination of the cleaning box 27, gear 2 40 and rack 23 further enhances the cleaning effect of the filter hole 24. The overall structure is compact, occupies a small area and is easy to maintain. The drive system is optimized to reduce costs, and the linkage of multiple components realizes efficient, intelligent and durable decanting operations, which significantly improves sewage treatment efficiency and equipment reliability.

[0040] 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 water decanting device, characterized in that, It includes a linear drive member (8) which is installed on one side wall of the sewage tank (1). A moving rod (6) is also arranged in the sewage tank (1). The linear drive member (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), and a connecting rod (4) is installed on the moving rod (6). The lower end of the connecting rod (4) is installed with a moving pipe (3). A pipe (12) is rotatably and penetratingly 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). The other end of the pipe (12) is installed with a water decanting mechanism (11).

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

3. The a winch - type water decanting device according to claim 2, characterized in that The lower end of the moving rod (6) is symmetrically and fixedly provided with connecting rods (4). The lower ends of the connecting rods (4) are fixedly connected with a moving pipe (3). Drain pipes (2) are arranged at both ends of the moving pipe (3). A sleeve (13) is rotatably and penetratingly installed in the center of the moving pipe (3). Through holes (14) are formed in the sleeve (13). The pipe (12) is installed at the through holes (14).

4. A kind of winch type water decanting device according to claim 1, characterized in that The water decanting mechanism (11) includes symmetrically arranged mounting rods (15). The mounting rods (15) are fixedly arranged on the pipe (12). A U-shaped plate (16) is fixedly arranged on the mounting rods (15). A moving block (20) is arranged in the U-shaped plate (16). Connecting blocks (22) are symmetrically installed on the moving block (20). A U-shaped frame (21) is connected to the two connecting blocks (22). A water decanting cylinder (18) is arranged in the U-shaped frame (21). Two filter hole areas are symmetrically formed on the water decanting cylinder (18). The filter hole area includes a number of filter holes (24).

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

6. The a winch type water decanting device according to claim 4, characterized in that, One end of the water decanting cylinder (18) is fixedly and penetratingly connected with a communicating pipe (25). The other end of the communicating pipe (25) is slidably and penetratingly connected with a fixed pipe. The fixed pipe fixedly passes through the U-shaped frame (21). The other end of the fixed pipe is penetratingly connected with a water decanting pipe (30). The water decanting pipe (30) is penetratingly connected to the pipe (12). An eccentric position at the other end of the water decanting cylinder (18) is fixedly provided with a drive rod (28). A roller (29) is installed on the drive rod (28). A number of trapezoidal blocks (31) are arranged on the U-shaped plate (16). The roller (29) abuts against the trapezoidal blocks (31).

7. The a winch type water decanting device according to claim 6, characterized in that At the other end of the decanting cylinder (18), a square sleeve (39) is fixedly arranged. A square plate (37) is slidably arranged in the square sleeve (39). At one end of the square plate (37), a square rod (33) is fixedly arranged. 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), and the other end of the spring (38) is fixedly connected to the square sleeve (39). A square groove (35) is formed in the U-shaped plate (16), and the square rod (33) is matched with the square groove (35).

8. The a winch type water decanting device according to claim 7, characterized in that, A square groove (36) is also formed in the U-shaped plate (16). One end of the square groove (35) communicates with the square groove (36). A first gear (32) is also fixedly arranged on the square rod (33). A toothed plate (34) is arranged in the square groove (35), and the toothed plate (34) is matched with the first gear (32).

9. The a winch type water decanting device according to claim 6, characterized in that, Cleaning boxes (27) are symmetrically and fixedly arranged on the U-shaped frame (21). Through grooves (44) are formed in the side walls of the cleaning boxes (27) close to each other. A cleaning plate (43) is slidably arranged in the through grooves (44). A plurality of bristles (26) are fixedly arranged on the side of the cleaning plate (43) close to each other.

10. A winch type water decanting device according to claim 9, characterized in that, One end of the cleaning plate (43) is fixedly provided with a pushing block (42). The pushing block (42) is slidably connected to the through groove (44). An extending rod is arranged on the pushing block (42), and a push rod (41) is rotatably connected to the extending rod. A second gear (40) is rotatably connected in the cleaning box (27), and the other end of the push rod (41) is hinged to an eccentric position of the second gear (40); racks (23) are also symmetrically installed on the U-shaped plate (16), and the racks (23) are meshed with the second gear (40).

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