Wellpoint Dewatering System

Abstract

This application relates to a wellpoint dewatering system, specifically within the technical field of wellpoint dewatering, for lowering the water level in dewatering wells drilled on the ground. The system includes a filter pipe, with a closed bottom, vertically installed within the dewatering well, and several filter holes on the sidewall of the filter pipe; a scraping assembly for scraping impurities from the outer wall of the filter pipe and transporting the impurities to the top of the dewatering well; a wastewater discharge assembly for transporting impurities from the top of the dewatering well to the outside of the well; and a pumping assembly for transporting groundwater from the filter pipe to the outside of the dewatering well. This application can improve dewatering efficiency.

Description

Technical Field

[0001] This application relates to the technical field of wellpoint dewatering, and in particular to a wellpoint dewatering system. Background Technology

[0002] Wellpoint dewatering is a method of artificially lowering the groundwater level. When excavating soil in a construction environment with a high groundwater level, a certain number of filter pipes are first buried around the area to be excavated. Water is then pumped out of the filter pipes using pumping equipment, thus keeping the soil dry. When groundwater enters the filter pipes, the silt and other impurities carried by the groundwater can easily clog the filter holes on the filter pipes, resulting in a low rate of groundwater entering the filter pipes and thus low dewatering efficiency. Summary of the Invention

[0003] To improve precipitation efficiency, this application provides a wellpoint precipitation system.

[0004] This application provides a wellpoint dewatering system, which adopts the following technical solution:

[0005] A wellpoint dewatering system for lowering the water level in dewatering wells drilled on the ground includes a filter pipe, which is vertically installed inside the dewatering well and has a closed bottom structure, with a plurality of filter holes on its sidewall; a scraping assembly for scraping off impurities from the outer wall of the filter pipe and transporting the impurities to the top of the dewatering well; a sewage discharge assembly for transporting the impurities from the top of the dewatering well to the outside of the dewatering well; and a pumping assembly for transporting groundwater from the filter pipe to the outside of the dewatering well.

[0006] By adopting the above technical solution, groundwater enters the filter pipe through the filter holes, and the pumping and scraping components are activated. The pumping component transports the water in the filter pipe to the outside of the dewatering well, thereby lowering the water level in the dewatering well. The scraping component can scrape and clean the impurities on the outer wall of the filter pipe, preventing impurities from clogging the filter holes and allowing groundwater to enter the filter pipe smoothly. The sewage discharge component can transport impurities to the outside of the dewatering well, preventing impurities in the dewatering well from approaching the filter holes again, thereby improving the dewatering efficiency of the dewatering well.

[0007] Optionally, the outer wall of the filter tube is spirally grooved along its own axis, and the filter holes are located in the grooves; the scraping assembly includes a vertically arranged conveyor belt, which is rotatably arranged around the axis of the filter tube and rotatably arranged outside the filter tube; three sliding balls are evenly arranged on the outer side of the conveyor belt along its own rotation direction, the sliding balls are fixedly connected to the conveyor belt, and the sliding balls can slide along the length of the grooves within the grooves; a transmission assembly is provided on the filter tube, which is used to drive the conveyor belt to rotate around the axis of the filter tube.

[0008] By adopting the above technical solution, the transmission component is activated, which drives the conveyor belt to rotate around the filter tube axis, causing the sliding ball to rotate around the filter tube axis. The sliding ball is set in a chute, and the chute is spirally arranged, allowing the rotating sliding ball to slide along the length of the chute under the action of the chute. At the same time, the arrangement of three sliding balls ensures that at least one sliding ball is sliding in the chute, and the sliding sliding ball in the chute can also drive the conveyor belt to rotate in its own rotation direction, allowing the sliding ball to slide out or slide into the chute. During the sliding process, the sliding ball can scrape the surface of the chute, separating impurities from the chute surface. At the same time, the sliding ball can push the impurities to the top of the chute, making it easier for the sewage discharge component to transport the impurities to the outside of the dewatering well, reducing the impact of impurities on the filter holes, thereby further improving the water discharge efficiency of the dewatering well.

[0009] Optionally, a water inlet assembly is provided on the side of the conveyor belt away from the filter pipe. The water inlet assembly includes an installation net, which is coaxially arranged with the filter pipe. Stones are pre-embedded between the installation net and the side wall of the dewatering well.

[0010] By adopting the above technical solution, groundwater may carry a lot of sediment during its flow. When groundwater enters the filter pipe directly through the filter holes, a lot of sediment may directly block the filter holes. The setting of stones and filter screen can play a preliminary filtering role for groundwater, reduce the sediment content in the groundwater near the filter pipe, thereby reducing the possibility of filter hole blockage and facilitating groundwater to enter the filter pipe, thus further improving the dewatering efficiency of the dewatering well.

[0011] Optionally, a purification assembly is installed above the rainwater well. The purification assembly includes a water storage tank installed on the ground. Several interconnected water purification pipes are arranged vertically in an S-shape inside the water storage tank. The first water purification pipe near the top surface of the water storage tank and the first water purification pipe near the bottom surface of the water storage tank are fixedly connected to the water storage tank. Separation holes are opened on the side walls of the water purification pipes. A water outlet pipe and a discharge pipe are installed at the bottom of the water storage tank. The water outlet pipe is connected to the inside of the water storage tank, and the discharge pipe is connected to the lowest water purification pipe. The pumping assembly is used to transport the water in the filter pipe to the highest water purification pipe.

[0012] By adopting the above technical solution, the pumping assembly transports groundwater from the filter pipe to the purified water pipe. As the groundwater flows through the purified water pipe under its own weight, it can enter the storage tank through the separation hole and be discharged through the outlet pipe. At the same time, impurities in the groundwater remain in the purified water pipe and are discharged through the discharge pipe under the action of their own weight and water flow, so that the groundwater is further purified and can be further utilized.

[0013] Optionally, a connecting pipe is provided between adjacent water purification pipes, and the connecting pipe is a corrugated pipe; a telescopic rod is fixedly provided between adjacent water purification pipes, and the length direction of the telescopic rod is the same as the length direction of the connecting pipe; a spring is sleeved on the telescopic rod, and the two ends of the spring are respectively connected to the water purification pipe closest to it; the water pumping assembly is used to control the flow rate of water entering the water purification pipe.

[0014] By adopting the above technical solution, when groundwater enters the water purification pipe, the water, under its own weight, exerts downward pressure on the pipe, allowing it to move vertically downwards. During the downward movement of several pipes, the connecting pipes and springs between adjacent pipes are compressed, enabling the springs to support the pipes above them. Furthermore, the pumping assembly can control the flow rate of the water entering the pipe, causing the weight of the water in each pipe to change constantly, which in turn causes the pressure on the pipe to change constantly. Under the action of the groundwater and the springs, the pipe continuously reciprocates vertically, facilitating the entry of groundwater into the storage tank and further improving the purification efficiency of the groundwater.

[0015] Optionally, the top of the filter tube is a closed structure; the sewage discharge assembly includes a sewage discharge box installed on the ground, a sewage discharge pipe connected to the sewage discharge box, and a pump installed on the sewage discharge pipe; an installation pipe is provided inside the filter tube, the top end of the installation pipe is coaxially inserted into the top surface of the filter tube and communicates with the sewage discharge pipe; the bottom end of the installation pipe is inserted into the side wall of the filter tube and communicates with the outside of the filter tube, and the installation pipe is located at the top of the filter tube.

[0016] By adopting the above technical solution, when one of the sliding balls is located at the top of the chute, the pump is started, and the impurities are transported to the sewage box through the installation pipe and the sewage pipe in sequence, so as to prevent the impurities separated from the filter pipe from clogging the filter holes again, thereby further improving the dewatering efficiency of the dewatering well.

[0017] Optionally, the transmission assembly includes a motor mounted on the filter tube, the motor output shaft being parallel to the filter tube axis, and a first gear fixedly sleeved on the motor output shaft; a rotating tube connecting the mounting tube and the drain pipe, the rotating tube being coaxially arranged with the filter tube and rotatably connected to both the drain pipe and the mounting tube; a second gear fixedly sleeved on the rotating tube, the second gear meshing with the first gear, and the rotating tube being connected to the conveyor belt.

[0018] By adopting the above technical solution, the motor is started, and the motor output shaft drives the first gear to rotate. The first gear drives the meshing second gear to rotate, so that the second gear drives the rotating tube and the conveyor belt to rotate in sequence, thereby allowing the slider to slide in the groove.

[0019] Optionally, the water pumping assembly includes a water pumping pipe, which is connected to the filter pipe and the first purified water pipe near the top of the water storage tank; a water pump is installed on the water pumping pipe.

[0020] By adopting the above technical solution, the water pump is started, and the water pump transports the water in the filter pipe to the clean water pipe through the water pumping pipe. This lowers the water level in the dewatering well and allows the groundwater to enter the clean water pipe for further purification, making it easier to utilize the groundwater.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] By setting up a scraping component, a sewage discharge component, and a pumping component, groundwater enters the filter pipe through the filter holes. The pumping component and the scraping component are then activated. The pumping component transports the water in the filter pipe to the outside of the dewatering well, thereby lowering the water level in the dewatering well. The scraping component can scrape and clean the impurities on the outer wall of the filter pipe, preventing impurities from clogging the filter holes and allowing groundwater to enter the filter pipe smoothly. The sewage discharge component can transport impurities to the outside of the dewatering well, preventing impurities in the dewatering well from approaching the filter holes again, thereby improving the dewatering efficiency of the dewatering well.

[0023] By setting up a transmission component, the transmission component can drive the conveyor belt to rotate around the filter tube axis, causing the slider to rotate around the filter tube axis. This allows the rotating slider to slide along the length of the chute under the action of the chute, enabling the slider to scrape the chute surface and separate impurities from the chute surface. At the same time, the slider can push the impurities to the top of the chute, making it easier for the sewage discharge component to transport the impurities to the outside of the rainwater well, reducing the impact of impurities on the filter holes, and thus further improving the water discharge efficiency of the rainwater well.

[0024] By installing water inlet components, groundwater may carry a lot of silt and rocks during its flow. The filter screen can play a preliminary filtering role on the groundwater, reducing the silt content in the groundwater near the filter pipe, thereby reducing the possibility of filter hole blockage and facilitating groundwater to enter the filter pipe, thus further improving the dewatering efficiency of the dewatering well. Attached Figure Description

[0025] Figure 1 This is a structural schematic diagram of an embodiment of this application;

[0026] Figure 2 This is a cross-sectional view of an embodiment of this application;

[0027] Figure 3 This is a schematic diagram illustrating a partial structure of the slider in an embodiment of this application;

[0028] Figure 4 yes Figure 2 A magnified view of a portion of point A in the middle.

[0029] Explanation of reference numerals in the attached drawings: 1. Dewatering well; 2. Filter pipe; 21. Filter hole; 22. Chute; 3. Water inlet assembly; 31. Installation net; 32. Stone; 4. Scraper assembly; 41. Rotating plate; 42. Conveyor belt; 43. Sliding ball; 5. Sewage discharge assembly; 51. Pump; 52. Sewage discharge pipe; 53. Sewage discharge tank; 54. Rotating pipe; 55. Installation pipe; 6. Purification assembly; 61. Water storage tank; 611. Support; 62. Clean water pipe; 621. Separation hole; 63. Connecting pipe; 64. Telescopic rod; 65. Spring; 67. Support plate; 68. Water outlet pipe; 69. Discharge pipe; 691. Valve; 7. Pumping assembly; 71. Pump; 72. Pumping pipe; 8. Transmission assembly; 81. First gear; 82. Second gear; 83. Motor; 84. Connecting rod. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0031] This application discloses a wellpoint dewatering system for lowering the water level in a dewatering well 1 drilled on the ground. (Refer to...) Figure 1 and Figure 2 The wellpoint dewatering system includes a filter pipe 2, which is coaxially installed inside the dewatering well 1. The top and bottom of the filter pipe 2 are closed structures. Several filter holes 21 are opened on the side wall of the filter pipe 2. A scraping assembly 4 and a pumping assembly 7 are installed on the filter pipe 2. The scraping assembly 4 is used to scrape impurities off the outer wall of the filter pipe 2 where the filter holes 21 are located, and transport the impurities to the top of the filter pipe 2. The pumping assembly 7 is used to transport the groundwater in the filter pipe 2 to the outside of the dewatering well 1.

[0032] After groundwater is filtered through filter hole 21, it enters filter pipe 2, causing impurities to be filtered onto the pipe wall of filter pipe 2 where filter hole 21 is located. The pumping component 7 and scraping component 4 are activated. The pumping component 7 pumps water out of filter pipe 2, lowering the water level in filter pipe 2. The scraping component 4 scrapes away impurities on the pipe wall of filter pipe 2, making it easier for groundwater to enter filter pipe 2 and thus lowering the groundwater level.

[0033] Reference Figure 1 and Figure 2 The rainwater well 1 is equipped with a water inlet component 3, which includes an installation net 31. The installation net 31 has a circular cross-section and is coaxially installed in the rainwater well 1, located between the rainwater well 1 and the filter pipe 2. Several stones 32 are pre-embedded between the installation net 31 and the side wall of the rainwater well 1, and the top surface of the stones 32 is flush with the ground.

[0034] As the groundwater flows into the filter pipe 2, it first undergoes preliminary filtration through the stones 32 and the installation net 31, filtering out impurities such as mud mixed with water onto the side of the stones 32 away from the filter pipe 2, thus reducing the possibility of the filter holes 21 becoming clogged.

[0035] Reference Figure 2 and Figure 3A groove 22 is provided on the outer wall of the filter pipe 2. The groove 22 is spirally arranged along the axis of the filter pipe 2. The top end of the groove 22 penetrates the top surface of the filter pipe 2, and the bottom end of the groove 22 penetrates the bottom surface of the filter pipe 2. Several filter holes 21 are spirally arranged in the groove 22 along the axis of the filter pipe 2. The scraping component 4 includes a rotating plate 41, which is vertically arranged between the installation net 31 and the filter pipe 2. The rotating plate 41 is arc-shaped in the horizontal plane. There is a distance between the bottom surface of the rotating plate 41 and the bottom surface of the dewatering well 1. Two filters are arranged around the circumference of the filter tube 2; a conveyor belt 42 is arranged between the two rotating plates 41. The conveyor belt 42 is arranged to rotate vertically and is rotatably connected to the rotating plate 41 along its own rotation direction. In other words, the conveyor belt 42 is arranged in a U-shape in the vertical direction and is rotatably connected to the rotating plate 41 along its own length direction; three sliding balls 43 are evenly arranged on the outer side of the conveyor belt 42 along its own rotation length. The sliding balls 43 are fixedly connected to the conveyor belt 42 and can slide in the groove 22 along its length direction.

[0036] Reference Figure 1 and Figure 2 The filter pipe 2 is equipped with a transmission assembly 8 and a sewage discharge assembly 5. The sewage discharge assembly 5 includes a sewage discharge box 53, which is horizontally installed on the ground. A sewage discharge pipe 52 is connected to the sewage discharge box 53. The end of the sewage discharge pipe 52 away from the sewage discharge box 53 is coaxially arranged above the filter pipe 2 and is connected to the filter pipe 2 by a rotating pipe 54. The rotating pipe 54 is coaxially arranged with the filter pipe 2. An installation pipe 55 is fixedly installed inside the filter pipe 2. The top end of the installation pipe 55 is coaxially arranged with the filter pipe 2 and is connected to the rotating pipe 54. The top end of the installation pipe 55 is rotatably connected to the rotating pipe 54 around its own axis. The bottom end of the installation pipe 55 is arranged radially along the filter pipe 2 and inserted into the side wall of the filter pipe 2. The installation pipe 55 is located at the top of the filter pipe 2 and the bottom end of the installation pipe 55 is connected to the outside of the filter pipe 2. A pump 51 is installed on the sewage discharge pipe 52.

[0037] Reference Figure 1 and Figure 2 The rotating tube 54 is rotatably connected to the filter tube 2 and the sewage pipe 52 around its own axis; the transmission assembly 8 includes a motor 83, which is mounted on the top surface of the filter tube 2. The output shaft of the motor 83 is parallel to the axis of the filter tube 2. A first gear 81 is coaxially sleeved on the output shaft of the motor 83, and the first gear 81 is fixedly connected to the output shaft of the motor 83; a second gear 82 is coaxially sleeved on the rotating tube 54, and the second gear 82 is fixedly connected to the rotating tube 54 and meshes with the first gear 81; a connecting rod 84 is fixedly provided between the rotating tube 54 and the top of the rotating plate 41.

[0038] When the motor 83 is started, the motor output shaft drives the first gear 81 to rotate. The first gear 81 drives the meshing second gear 82 to rotate, which in turn drives the rotating tube 54, connecting rod 84, rotating plate 41, conveyor belt 42, and sliding ball 43 to rotate. The sliding ball 43 is set in the slide groove 22, and the slide groove 22 is spirally arranged, so that the rotating sliding ball 43 can slide along the length of the slide groove 22 under the action of the slide groove 22. At the same time, the arrangement of three sliding balls 43 makes the slide... At least one sliding ball 43 slides within the trough 22, and the sliding ball 43 within the trough 22 can also drive the conveyor belt 42 to rotate in its own rotation direction, allowing the ball 43 to slide out or slide into the trough 22. During the sliding process, the ball 43 can scrape the surface of the trough 22, causing impurities to separate from the surface of the trough 22. At the same time, the ball 43 can push the impurities to the top of the trough 22. At this time, the pump 51 transports the impurities at the top of the trough 22 to the sewage tank 53 through the sewage pipe 52.

[0039] Reference Figure 1 and Figure 2 The dewatering well 1 is equipped with a pumping assembly 7 and a purification assembly 6. The pumping assembly 7 includes a pumping pipe 72, the bottom end of which is coaxially arranged with the filter pipe 2. The bottom end of the pumping pipe 72 is sequentially inserted into the sewage pipe 52, the rotating pipe 54, and the installation pipe 55. The bottom end of the pumping pipe 72 extends downward into the filter pipe 2 and communicates with the inside of the filter pipe 2. A pumping pump 71 is installed on the pumping pipe 72 and is located above the ground.

[0040] Reference Figure 2 and Figure 4 The purification component 6 includes a water storage tank 61, which is vertically installed on the ground. Several water purification pipes 62 are arranged in an S-shape along the vertical direction inside the water storage tank 61. The first water purification pipe 62 near the top surface of the water storage tank 61 is fixedly connected to the top surface, and the first water purification pipe 62 near the bottom surface of the water storage tank 61 is fixedly connected to the bottom surface. Several separation holes 621 are opened on the side walls of the water purification pipes 62. Connecting pipes 63, which are corrugated pipes, are connected between adjacent water purification pipes 62 and are vertically installed. A telescopic rod 64 is installed vertically, and support plates 67 are fixedly installed at the top and bottom of the telescopic rod 64. The support plates 67 are fixedly connected to the water purification pipe 62 closest to it. A spring 65 is coaxially sleeved on the telescopic rod 64, and the spring 65 is fixedly connected to the two adjacent support plates 67. A water outlet pipe 68 and a discharge pipe 69 are vertically installed below the water storage tank 61. The water outlet pipe 68 is connected to the inside of the water storage tank 61, and the discharge pipe 69 is connected to the bottom end of the lowest water purification pipe 62. A valve 691 is installed on the discharge pipe 69. A bracket 611 is fixedly installed at the top corner of the bottom surface of the water storage tank 61.

[0041] The water pump 71 is started, and the water pump 71 transports groundwater through the water pumping pipe 72 to the uppermost clean water pipe 62. When the groundwater enters the clean water pipe 62, the water, under its own weight, exerts downward pressure on the clean water pipe 62, allowing the clean water pipe 62 to move vertically downward. During the downward movement of several clean water pipes 62, the connecting pipes 63 and springs 65 installed between adjacent clean water pipes 62 are compressed, so that the springs 65 can provide support for the clean water pipes 62 above them. Furthermore, the water pumping assembly 7 can control the flow rate of the water entering the clean water pipe 62. This causes the weight of the water in each water purification pipe 62 to change constantly, which in turn causes the pressure on the water purification pipe 62 to change constantly. At this time, under the action of groundwater and spring 65, the water purification pipe 62 continuously reciprocates in the vertical direction, which is conducive to the groundwater entering the water storage tank 61 through the separation hole 621 and being discharged through the outlet pipe 68. At the same time, impurities in the groundwater remain in the water purification pipe 62 and are discharged through the discharge pipe 69 under the action of the impurities' own weight and the water flow, so that the groundwater is further purified and can be further utilized.

[0042] The implementation principle of a wellpoint dewatering system according to an embodiment of this application is as follows: Groundwater first undergoes preliminary filtration through stones 32 and installation mesh 31, filtering out impurities such as mud mixed with water onto the side of stones 32 away from the filter pipe 2. After being filtered through filter holes 21, the groundwater enters the filter pipe 2, where impurities are filtered onto the pipe wall of the filter pipe 2. The output shaft of the motor drives the first gear 81 to rotate, which in turn drives the meshing second gear 82 to rotate. This, in turn, causes the second gear 82 to drive the rotating pipe 54, connecting rod 84, rotating plate 41, conveyor belt 42, and sliding ball 43 to rotate. The sliding ball 43 is installed in a chute 22, which is spirally arranged, allowing the rotating sliding ball 43 to move along the length of the chute 22 under its action. The slides in the direction of rotation, and the arrangement of three sliding balls 43 ensures that at least one sliding ball 43 is sliding in the chute 22. The sliding ball 43 in the chute 22 can also drive the conveyor belt 42 to rotate in its own rotation direction, so that the sliding ball 43 can slide out or slide into the chute 22. During the sliding process, the sliding ball 43 can scrape the surface of the chute 22, so that impurities are separated from the surface of the chute 22. At the same time, the sliding ball 43 can push the impurities to the top of the chute 22. At this time, the pump 51 transports the impurities at the top of the chute 22 to the sewage tank 53 through the sewage pipe 52. This prevents impurities from clogging the filter hole 21, so that groundwater can smoothly enter the filter pipe 2, and prevents impurities in the dewatering well 1 from approaching the filter hole 21 again, thereby improving the dewatering efficiency of the dewatering well 1.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A well point dewatering system for lowering the water level in a dewatering well (1) opened on the ground, characterized in that, The utility model relates to a rainwater well and purification system, including: a filter tube (2) vertically arranged in the rainwater well (1) with a closed bottom, and a plurality of filter holes (21) on the lateral wall of the filter tube (2); a scraping assembly (4) for scraping impurities on the outer wall of the filter tube (2) and transporting the impurities to the top of the rainwater well (1); a sewage discharge assembly (5) for transporting the impurities at the top of the rainwater well (1) to the outside of the rainwater well (1); a water pumping assembly (7) for transporting underground water in the filter tube (2) to the outside of the rainwater well (1); the outer wall of the filter tube (2) is provided with a chute (22) in a spiral shape along the axis of the filter tube (2), and the filter holes (21) are located in the chute (22); the scraping assembly (4) includes a transport belt (42) vertically arranged, which is rotatably arranged outside the filter tube (2) and rotates around the axis of the filter tube (2); the transport belt (42) is uniformly provided with three sliding balls (43) on the outside of the transport belt (42) along the rotation direction of the transport belt (42), the sliding balls (43) are fixedly connected with the transport belt (42), and the sliding balls (43) are slidably arranged in the chute (22) along the length direction of the chute (22); the filter tube (2) is provided with a transmission assembly (8) for driving the transport belt (42) to rotate around the axis of the filter tube (2); the side of the transport belt (42) away from the filter tube (2) is provided with a water inlet assembly (3), and the water inlet assembly (3) includes a mounting net (31) coaxially arranged with the filter tube (2), and the mounting net (31) and the lateral wall of the rainwater well (1) are pre-buried with stone blocks (32); the cross section of the mounting net is in the shape of a circular ring, and the top surface of the stone block is flush with the ground; a purification assembly (6) is arranged above the rainwater well (1), the purification assembly (6) includes a water storage tank (61) arranged on the ground, a plurality of interconnected water purification pipes (62) are arranged in an S shape in the vertical direction in the water storage tank (61), the first water purification pipe (62) close to the top surface of the water storage tank (61) and the first water purification pipe (62) close to the bottom surface of the water storage tank (61) are fixedly connected with the water storage tank (61); the lateral wall of the water purification pipe (62) is provided with a separation hole (621); the bottom of the water storage tank (61) is provided with a water outlet pipe (68) and a discharge pipe (69), the water outlet pipe (68) is in communication with the inside of the water storage tank (61), and the discharge pipe (69) is in communication with the lowermost water purification pipe (62); the water pumping assembly (7) is used for transporting water in the filter tube (2) into the uppermost water purification pipe (62); a valve is installed on the discharge pipe, and a support is fixedly arranged at the top corner of the bottom surface of the water storage tank; Connecting pipes (63) are communicated between adjacent water purification pipes (62), the connecting pipes (63) are bellows; adjacent water purification pipes (62) are fixedly provided with telescopic rods (64), the length direction of the telescopic rods (64) is same with the length direction of the connecting pipes (63); springs (65) are sleeved on the telescopic rods (64), the two ends of the springs (65) are connected with the water purification pipes (62) close to the springs (65) respectively; the water pumping assembly (7) is used for controlling the flow rate of water entering the water purification pipes (62); The top of the filter pipe (2) is a closed structure; the pollution discharge assembly (5) comprises a pollution discharge tank (53) arranged on the ground, a pollution discharge pipe (52) communicated with the pollution discharge tank (53), and a pump (51) mounted on the pollution discharge pipe (52); the filter pipe (2) is provided with a mounting pipe (55), the mounting pipe (55) is coaxially inserted into the top surface of the filter pipe (2) at the top end, and is communicated with the pollution discharge pipe (52); the mounting pipe (55) is inserted into the side wall of the filter pipe (2) at the bottom end, and is communicated with the outside of the filter pipe (2), and the mounting pipe (55) is located at the top of the filter pipe (2); The transmission assembly (8) comprises a motor (83), the motor (83) is mounted on the filter pipe (2), the output shaft of the motor (83) is parallel with the axis of the filter pipe (2), and a first gear (81) is fixedly sleeved on the output shaft of the motor (83); a rotating pipe (54) is communicated between the mounting pipe (55) and the pollution discharge pipe (52), the rotating pipe (54) is coaxially arranged with the filter pipe (2), and is rotatably connected with the pollution discharge pipe (52) and the mounting pipe (55); a second gear (82) is fixedly sleeved on the rotating pipe (54), the second gear (82) is engaged with the first gear (81), and the rotating pipe (54) is connected with the conveying belt (42); The water pumping assembly (7) comprises a water pumping pipe (72), the water pumping pipe (72) is communicated with the filter pipe (2) and the first water purification pipe (62) close to the top surface of the water storage tank (61); a water pumping pump (71) is mounted on the water pumping pipe (72).

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