Hydrogeological anti-blocking drainage device

Abstract

The utility model discloses a hydrogeological anti-blocking drainage device, and relates to the technical field of anti-blocking drainage. The device comprises a drainage pipe and a water inlet pipe, a support is arranged in the drainage pipe, a trash holding assembly corresponding to the water inlet pipe is rotationally matched with the drainage pipe, the upper end of the trash holding assembly is located on the peripheral side of the water inlet pipe, and a U-shaped cleaning plate located in the trash holding assembly is arranged at the upper end of the support; the upper end face of the inner wall of the drainage pipe is rotationally matched with multiple rotating balls, and two first annular grooves are formed in the circumferential sides of the rotating balls. The rotating balls are matched with the first annular grooves to support the circular rings, the rotating resistance of the trash holding assembly is reduced, the running stability of the device is improved, meanwhile, the rotating balls are arranged on the side portions of the trash holding assembly, the probability that foreign matter makes contact with the rotating balls, and consequently the rotating balls and the circular rings are seriously abraded or blocked is reduced, and the trash holding assembly is more stable. The trash holding assembly is rotationally matched with the fixed U-shaped cleaning plate, relative movement is formed, and foreign matter on the surface of the inner wall of the trash holding assembly is automatically scraped away.

Description

Technical Field

[0001] This utility model belongs to the field of anti-clogging and drainage, specifically, it relates to a hydrogeological anti-clogging and drainage device. Background Technology

[0002] Hydrogeological anti-clogging drainage devices are engineering equipment specifically designed to treat groundwater or engineering water accumulation problems while preventing drainage system blockage. They aim to efficiently and stably remove water and reduce pipe or drainage channel blockage problems caused by silt, impurities or chemical deposits.

[0003] Chinese Patent No. CN218692244U discloses a hydrogeological anti-clogging drainage device, comprising: a drainage pipe body, an inlet pipe at the top of the drainage pipe body, rollers on all four sides of the bottom wall of the inlet pipe, the outer sides of multiple rollers being rotatably connected to the inner wall of a ball bearing, an L-shaped limiting ring fixedly connected to the top outer side of the ball bearing, and a toothed ring fixedly connected to the side of the L-shaped limiting ring, a servo motor fixedly connected to the inner wall of the drainage pipe body, and a gear fixedly connected to the output end of the servo motor.

[0004] The hydrogeological anti-blocking and drainage device disclosed in the application has a problem during use: because the roller is located inside the ball bearing, it is easy for it to come into direct contact with foreign objects in the water flow. Foreign objects can accelerate the contact wear between the roller and the ball bearing, and can also cause the roller and / or the ball bearing to jam, which will seriously affect the normal use of the device. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a hydrogeological anti-blockage drainage device, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A hydrogeological anti-blocking drainage device includes: a drainage pipe and an inlet pipe. The lower end of the inlet pipe is installed inside the drainage pipe. A bracket is installed inside the drainage pipe, and a debris-blocking component corresponding to the inlet pipe is rotatably fitted therein. The upper end of the debris-blocking component is located on the periphery of the inlet pipe. A U-shaped cleaning plate located inside the debris-blocking component is installed on the upper end of the bracket.

[0008] Multiple rotating beads are rotatably fitted on the upper end face of the inner wall of the drain pipe. The multiple rotating beads are evenly distributed around the periphery of the debris-blocking component. Two first annular grooves are provided around the rotating beads. A toothed ring and two circular rings are embedded in the periphery of the debris-blocking component. The toothed ring is located between the upper and lower circular rings. The side of the circular ring is located in the first annular groove. A motor is installed inside the drain pipe. The output shaft of the motor is fixedly connected to a gear that meshes with the toothed ring. The gear is located between two adjacent rotating beads.

[0009] Optionally, the debris-blocking assembly includes a barrel body, a U-shaped cleaning plate located inside the barrel body, the lower and both sides of the U-shaped cleaning plate being in contact with the inner wall of the barrel body, the barrel body being rotatably fitted onto the upper part of the bracket, the upper end of the barrel body being located around the water inlet pipe, a circular ring being provided around the barrel body, a second annular groove being provided around the barrel body, a toothed ring being installed in the second annular groove, and multiple arc-shaped drain outlets being evenly provided around the barrel body, the arc-shaped drain outlets being connected to the inner cavity of the barrel body, and the arc-shaped drain outlets being located below the water inlet pipe.

[0010] Optionally, a water-proof ring is provided on the inner wall of the drain pipe, the water-proof ring is located on the periphery of the barrel, the arc-shaped drain outlet is located below the water-proof ring, and multiple shafts are installed between the water-proof ring and the upper end face of the inner wall of the drain pipe, with ball bearings rotating and engaging on the periphery of the shafts.

[0011] Optionally, the bracket includes a circular plate located on the lower end face of the barrel, with three support rods on the side of the circular plate. The end of the support rod away from the circular plate is installed on the inner wall side of the drain pipe. An extension column is installed on the upper end face of the circular plate, with the upper end of the extension column penetrating into the barrel. The extension column is installed on the lower side of the U-shaped cleaning plate.

[0012] Optionally, the lower end face of the barrel is provided with a round hole and multiple filter holes. The filter holes are located on the side of the round hole, the extension column is located inside the round hole, and bearings are installed around the filter holes and around the extension column.

[0013] Optionally, a flange is provided around the water inlet pipe, and the flange has multiple through holes that penetrate the flange. The multiple through holes are evenly distributed around the water inlet pipe. The upper end face of the drain pipe has screw holes corresponding to the through holes. Multiple bolts are provided on the flange, and the lower end of the bolts penetrates the through holes and is threaded into the corresponding screw holes.

[0014] Optionally, a gasket is provided between the flange and the drain pipe, with the gasket located around the periphery of the inlet pipe and the bolts penetrating vertically through the gasket.

[0015] Optionally, the drain pipe is provided with an equipment slot corresponding to the motor, the motor is installed in the equipment slot, the equipment slot is located on the side of the water inlet pipe, and the upper end face of the inner wall of the drain pipe is provided with a rotating hole that communicates with the equipment slot, and the motor output shaft passes through the rotating hole.

[0016] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0017] By using the rotating ball and the first ring groove to support the ring, the rotational resistance of the debris-blocking component is reduced, and the operational stability of the device is improved. At the same time, by arranging the rotating ball on the side of the debris-blocking component, the probability of foreign objects contacting the rotating ball and causing severe wear or jamming between the rotating ball and the ring is reduced. The rotation of the debris-blocking component, in conjunction with the fixed U-shaped cleaning plate, forms relative motion to automatically scrape away foreign objects from the inner wall surface of the debris-blocking component, thereby causing foreign objects to gather and accumulate, improving the anti-clogging ability of the debris-blocking component. The debris-blocking component is driven to rotate by a motor through the meshing of gears and gear rings.

[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0019] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0020] In the picture:

[0021] Figure 1 A three-dimensional structural diagram of the drainage device;

[0022] Figure 2 This is a schematic diagram of the cross-sectional structure of the drainage device.

[0023] Figure 3 This is a schematic diagram of the cross-sectional structure of the drainage pipe;

[0024] Figure 4 This is a schematic diagram of the cross-sectional structure of the rotating bead.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Drain pipe; 2. Inlet pipe; 3. Tank body; 4. Arc-shaped drain outlet; 5. Filter hole; 6. Circular ring; 7. Gear ring; 8. Circular plate; 9. Support rod; 10. Extension column; 11. U-shaped cleaning plate; 12. Bearing; 13. Motor; 14. Gear; 15. Shaft; 16. Ball bearing; 17. First ring groove; 18. Flange; 19. Sealing gasket; 20. Bolt; 21. Waterproof ring.

[0027] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] In the field of groundwater management and engineering drainage, the design and application of anti-clogging drainage devices have always been key technologies for ensuring the safety and efficiency of engineering projects. With the acceleration of urbanization and the increasing complexity of underground engineering, traditional drainage systems often suffer from reduced drainage efficiency or even functional failure due to clogging when facing complex hydrogeological conditions such as high sediment content, corrosive water, or microbial growth. Existing technologies for anti-clogging drainage devices mainly achieve their functions through physical interception, mechanical cleaning, or chemical treatment. While they exhibit diverse structural forms and are applicable to a wide range of scenarios, there is still room for improvement in long-term operational stability and ease of maintenance.

[0031] From the perspective of device type, common hydrogeological drainage and clogging equipment can be divided into three main categories: filtration type, rotary interception type, and multi-functional type. Filtration type devices use multi-layered filter screens or permeable materials as the core, such as permeable pipes wrapped with geotextile or blind ditch systems filled with graded crushed stone. These structures block sediment from entering the drainage channel through gradation of pore size. For example, corrugated permeable pipes widely used in slope drainage projects have polyester fiber filter membranes covering their surface, which effectively isolate fine soil particles while allowing water flow. However, with long-term use, such devices are prone to compaction due to the gradual filling of filter pores with tiny particles, leading to decreased permeability. Regular replacement of filter media or high-pressure flushing is required to maintain performance, increasing maintenance costs. Another typical design is a water collection well system combining sedimentation tanks and filter screens. After water enters the well, the flow velocity decreases, and sediment naturally settles to the bottom, then is removed by pumping equipment. This type of system is common in building foundation pit drainage, but it occupies a large area and has limited efficiency in treating suspended solids, making it difficult to cope with sudden high-turbidity water flows.

[0032] Rotary interception devices achieve anti-clogging functionality through dynamic mechanical structures, such as systems with rotating filter cartridges or scrapers. These devices typically use a motor to drive the filter screen or grid to rotate, utilizing centrifugal force to separate impurities, or using fixed scrapers to remove deposits during rotation. For example, some tunnel drainage systems use cylindrical metal filter screens as interception components, externally connected to a gear transmission mechanism. As the motor drives the filter screen to rotate slowly, internally fixed nylon brushes continuously scrape away silt and algae from the inner wall of the filter screen. The advantage of this design is its high degree of automation, reducing the frequency of manual cleaning. However, its mechanical components are prone to bearing corrosion or transmission mechanism jamming when exposed to a humid environment for extended periods. Furthermore, when rotating components are in direct contact with water flow, without effective protection, sand or hard foreign objects may enter the gaps between moving parts, accelerating the wear of gears, rollers, and other components, affecting the device's lifespan. One engineering case showed that a mine drainage system suffered from an unreasonable design of the rotating filter cartridge's support rollers and ball bearing structure, leading to metal debris getting stuck at the rotating interface and ultimately causing a motor overload failure.

[0033] Multifunctional devices combine physical filtration and chemical treatment technologies, such as adding corrosion inhibitor release devices or ultraviolet sterilization modules to drainage pipes. These designs are commonly found in wastewater treatment or chemical industry applications to prevent clogging, maintaining pipe patency by inhibiting microbial biofilm growth or reducing mineral scaling. For example, some coastal drainage systems use HDPE pipes with an inner silver ion antibacterial coating, utilizing the antibacterial properties of silver ions to prevent biofilm blockage. Simultaneously, segmented slow-release rings installed in the pipes gradually release scale inhibitors, reducing the deposition of minerals such as calcium carbonate. While these devices reduce the risk of clogging caused by biological and chemical factors to some extent, they are costly, and require regular manual intervention for agent replenishment, limiting their applicability in field or unattended engineering environments.

[0034] From a structural perspective, the core components of existing anti-clogging drainage devices typically include three parts: a filter unit, a flow channel, and an auxiliary anti-clogging mechanism. The filter unit, as the first line of defense, directly affects its initial anti-clogging performance through material selection and pore design. For example, geosynthetics, due to their corrosion resistance and customizable pore size, are often made into bags or rolls to wrap around the outside of drainage pipes; metal mesh, due to its high strength, is mostly used in scenarios with high flow velocities or large particles of impurities. The design of the flow channel emphasizes hydraulic efficiency, commonly employing annular corrugated pipes, honeycomb drainage boards, or blind drain structures with flow guide ribs. These forms promote rapid water flow by increasing surface area or creating turbulence. The auxiliary anti-clogging mechanism encompasses mechanical cleaning components (such as scrapers and brushes), backwash interfaces, and sensor monitoring modules. For instance, some intelligent drainage devices integrate pressure sensors that automatically activate a backwash pump when an abnormal increase in pipe pressure is detected, using high-pressure water to flush the filter layer in reverse.

[0035] In terms of application scenarios, the requirements for drainage devices vary significantly depending on the engineering environment. Deep foundation pit drainage in civil engineering requires devices with high compressive strength and rapid response capabilities, often employing modular drainage boards combined with vacuum pumping systems. Slope stabilization projects focus more on the device's erosion resistance and long-term stability, frequently using ecological drainage structures combining permeable concrete grids and vegetation. Mine roadway drainage faces the dual challenges of acidic groundwater corrosion and rock debris mixing, requiring devices made of acid and alkali resistant materials (such as fiberglass pipes) and equipped with multi-stage cyclone separators. In saline-alkali land improvement projects in agriculture, drainage devices must simultaneously achieve rapid salt removal and prevent the loss of fine-particle sediment; therefore, composite structures combining underground drainage pipes and sand filters are commonly used.

[0036] Although existing technologies have formed a relatively complete technical system, several common problems still exist. First, the coordinated design of the filtration structure and moving parts has not fully resolved the contradiction between efficiency and durability—static filter layers are prone to clogging, while dynamic mechanical parts face the risk of wear and failure. Second, multi-stage interception technologies targeting impurities of different particle sizes often increase manufacturing costs in practical engineering due to structural complexity. For example, while some three-stage filtration systems significantly improve anti-clogging effects, their stacking process leads to a reduction in pipe diameter, which in turn reduces the overall drainage capacity. Furthermore, when dealing with viscous substances (such as silt or humus), relying solely on physical filtration or mechanical scraping is insufficient to completely solve the problem of deposit accumulation; it is necessary to combine this with hydraulic flushing or chemical dispersants to maintain system efficiency. These technical bottlenecks have prompted researchers to continuously explore more optimized structural designs and material applications to achieve a balance between efficiency, economy, and reliability in anti-clogging drainage devices.

[0037] Please see Figure 1-4 As shown, this embodiment provides a hydrogeological anti-blocking drainage device, including: a drainage pipe 1 and an inlet pipe 2. The lower end of the inlet pipe 2 is set inside the drainage pipe 1. A bracket is installed inside the drainage pipe 1, and a debris-blocking component corresponding to the inlet pipe 2 is rotatably fitted therein. The upper end of the debris-blocking component is located on the periphery of the inlet pipe 2. A U-shaped cleaning plate 11 located inside the debris-blocking component is installed on the upper end of the bracket.

[0038] Multiple rotating beads 16 are rotatably fitted on the upper end face of the inner wall of the drain pipe 1. The multiple rotating beads 16 are evenly distributed around the periphery of the debris-blocking component. Two first annular grooves 17 are provided around the rotating beads 16. A gear ring 7 and two circular rings 6 are embedded in the periphery of the debris-blocking component. The gear ring 7 is located between the upper and lower circular rings 6. The side of the circular rings 6 is located in the first annular groove 17. A motor 13 is installed inside the drain pipe 1. The output shaft of the motor 13 is fixedly connected to a gear 14 that meshes with the gear ring 7. The gear 14 is located between two adjacent rotating beads 16.

[0039] One application of this embodiment is as follows: During use, the inlet pipe 2 introduces water into the drain pipe 1. At this time, the motor 13 is started, and its output shaft drives the gear 14 to rotate. The gear 14 drives the gear ring 7 to rotate, and the gear ring 7 drives the entire debris-blocking assembly and the ring 6 to rotate inside the drain pipe 1. At this time, the rotating ball 16 rotates and uses the first ring groove 17 to support the ring 6. During the rotation of the debris-blocking assembly, the U-shaped cleaning plate 11 fixed to the upper end of the bracket is always in close contact with the inner wall of the debris-blocking assembly. The relative movement between the two scrapes off the foreign objects attached to the inner wall of the debris-blocking assembly. The water flows downward after being filtered through the rotating debris-blocking assembly, and the foreign objects accumulated in the debris-blocking assembly can be cleaned by backwashing. It should be noted that all electrical equipment involved in this application can be powered by a storage battery or an external power source.

[0040] By cooperating with the first annular groove 17, the rotating ball 16 supports the ring 6, reducing the rotational resistance of the debris-blocking assembly and improving the operational stability of the device. At the same time, by arranging the rotating ball 16 on the side of the debris-blocking assembly, the probability of foreign objects contacting the rotating ball 16 and causing severe wear or jamming between the rotating ball 16 and the ring 6 is reduced. The rotating debris-blocking assembly, in conjunction with the fixed U-shaped cleaning plate 11, forms relative motion to automatically scrape away foreign objects from the inner wall surface of the debris-blocking assembly, thereby causing the foreign objects to gather and accumulate, improving the anti-clogging ability of the debris-blocking assembly. The debris-blocking assembly is driven to rotate by the motor 13 through the meshing of the gear 14 and the gear ring 7.

[0041] like Figure 2-4 As shown, the debris-blocking assembly of this embodiment includes a barrel 3, a U-shaped cleaning plate 11 located inside the barrel 3, the lower and both sides of the U-shaped cleaning plate 11 being in contact with the inner wall of the barrel 3, the barrel 3 being rotatably fitted on the upper part of the bracket, the upper end of the barrel 3 being located around the water inlet pipe 2, a ring 6 being provided around the barrel 3, a second annular groove being provided around the barrel 3, a toothed ring 7 being installed in the second annular groove, a plurality of arc-shaped drain outlets 4 being evenly provided around the barrel 3, the arc-shaped drain outlets 4 being connected to the inner cavity of the barrel 3, the arc-shaped drain outlets 4 being located below the water inlet pipe 2, the plurality of arc-shaped drain outlets 4 facilitating the even dispersion and discharge of water flow, and the second annular groove reducing the probability of contact and friction between the toothed ring 7 and the rotating ball 16.

[0042] like Figure 2-4 As shown, in this embodiment, a water-proof ring 21 is provided on the inner wall of the drain pipe 1. The water-proof ring 21 is located on the periphery of the barrel 3. The arc-shaped drain outlet 4 is located below the water-proof ring 21. Multiple shafts 15 are installed between the water-proof ring 21 and the upper end face of the inner wall of the drain pipe 1. The rotating ball 16 is rotatably engaged with the periphery of the shaft 15. By cooperating with the shaft 15 through the water-proof ring 21, the stability of the rotation of the rotating ball 16 is improved. By the vertical positional relationship between the water-proof ring 21 and the arc-shaped drain outlet 4, the direct impact of water flow on the rotating ball 16, the ring 6, the gear ring 7 and the gear 14 is reduced, thereby improving the service life of the components.

[0043] like Figure 3As shown, the bracket in this embodiment includes a circular plate 8 located on the lower end face of the barrel 3. Three support rods 9 are provided on the side of the circular plate 8. The end of the support rod 9 away from the circular plate 8 is installed on the inner wall side of the drain pipe 1. An extension column 10 is installed on the upper end face of the circular plate 8. The upper end of the extension column 10 penetrates into the barrel 3. The extension column 10 is installed on the lower side of the U-shaped cleaning plate 11. The circular plate 8 and the support rods 9 form a triangular support structure, which improves the overall load-bearing capacity and strength of the bracket. The extension column 10 penetrates through the bottom of the barrel 3 and connects to the U-shaped cleaning plate 11, thereby maintaining the fixed position of the U-shaped cleaning plate 11.

[0044] like Figure 2 , 3 As shown, the lower end face of the barrel 3 in this embodiment is provided with a circular hole and a plurality of filter holes 5. The filter holes 5 are located on the side of the circular hole, and the extension column 10 is located inside the circular hole. A bearing 12 is installed on the periphery of the filter hole 5. The bearing 12 is installed on the periphery of the extension column 10. The bearing 12 reduces the friction between the barrel 3 and the extension column 10 when the barrel 3 rotates, improves the smoothness of the barrel 3 rotation, and enhances the filtration efficiency of the barrel 3 through the filter holes 5.

[0045] like Figure 1 , 3 As shown, in this embodiment, the water inlet pipe 2 is provided with a flange 18 around its periphery. The flange 18 has multiple through holes vertically, which penetrate the flange 18. The multiple through holes are evenly distributed around the periphery of the water inlet pipe 2. The upper end face of the drain pipe 1 is provided with screw holes corresponding to the through holes. The flange 18 is provided with multiple bolts 20. The lower end of the bolts 20 penetrates the through holes and is threaded into the corresponding screw holes. The connection between the flange 18 and the bolts 20 facilitates quick assembly and disassembly of the water inlet pipe 2 and the drain pipe 1, improving the convenience of device maintenance.

[0046] like Figure 1 , 3 As shown, in this embodiment, a sealing gasket 19 is provided between the flange 18 and the drain pipe 1. The sealing gasket 19 is located on the periphery of the water inlet pipe 2. The bolt 20 penetrates the sealing gasket 19 vertically. The sealing gasket 19 enhances the sealing performance of the connection between the flange 18 and the drain pipe 1, reducing the probability of water in the drain pipe 1 and the water inlet pipe 2 leaking out from the connection.

[0047] like Figure 3 As shown, the drain pipe 1 in this embodiment is provided with a device slot corresponding to the motor 13. The motor 13 is installed in the device slot, which is located on the side of the water inlet pipe 2. The upper end face of the inner wall of the drain pipe 1 is provided with a rotating hole that communicates with the device slot. The output shaft of the motor 13 passes through the rotating hole. The motor 13 is embedded in the device slot and the rotating hole, which reduces the probability that the motor 13 is directly exposed to the water flow.

[0048] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A hydrogeological anti-clogging drainage device, characterized in that, include: Drainage pipe (1) and water inlet pipe (2). The drainage pipe (1) is equipped with a bracket and a rotatable dirt-blocking component corresponding to the water inlet pipe (2). The upper end of the dirt-blocking component is located on the periphery of the water inlet pipe (2). The upper end of the bracket is equipped with a U-shaped cleaning plate (11) located inside the dirt-blocking component. The upper end face of the inner wall of the drain pipe (1) is fitted with multiple rotating balls (16). Two first annular grooves (17) are provided around the rotating balls (16). The circumference of the dirt-blocking component is embedded with a gear ring (7) and two circular rings (6). The side of the circular rings (6) is located in the first annular groove (17). The drain pipe (1) is equipped with a motor (13). The output shaft of the motor (13) is fixedly connected to a gear (14) that meshes with the gear ring (7).

2. The hydrogeological anti-blockage drainage device according to claim 1, characterized in that, The debris-blocking assembly includes a barrel (3), a U-shaped cleaning plate (11) located inside the barrel (3), a circular ring (6) located on the periphery of the barrel (3), a second annular groove provided on the periphery of the barrel (3), a toothed ring (7) installed in the second annular groove, and multiple arc-shaped drain outlets (4) evenly provided on the periphery of the barrel (3).

3. A hydrogeological anti-blockage drainage device according to claim 2, characterized in that, A water-proof ring (21) is provided on the inner wall of the drain pipe (1). The water-proof ring (21) is located on the periphery of the barrel body (3). Multiple shafts (15) are installed between the water-proof ring (21) and the upper end face of the inner wall of the drain pipe (1). The ball bearing (16) rotates and engages with the periphery of the shaft (15).

4. A hydrogeological anti-blockage drainage device according to claim 2, characterized in that, The support includes a circular plate (8) located on the lower end face of the barrel (3). Three support rods (9) are provided on the side of the circular plate (8). The end of the support rod (9) away from the circular plate (8) is installed on the inner wall side of the drain pipe (1). An extension column (10) is installed on the upper end face of the circular plate (8). The extension column (10) is installed on the lower side of the U-shaped cleaning plate (11).

5. A hydrogeological anti-blockage drainage device according to claim 4, characterized in that, The lower end face of the barrel (3) is provided with a round hole and multiple filter holes (5). The filter holes (5) are equipped with bearings (12) on the periphery. The bearings (12) are installed on the periphery of the extension column (10).

6. A hydrogeological anti-blockage drainage device according to claim 1, characterized in that, The inlet pipe (2) is provided with a flange (18) around its perimeter. The flange (18) has multiple through holes in the vertical direction. The upper end face of the drain pipe (1) is provided with screw holes corresponding to the through holes. Multiple bolts (20) are provided on the flange (18). The lower end of the bolts (20) passes through the through holes and is threaded into the corresponding screw holes.

7. A hydrogeological anti-blockage drainage device according to claim 6, characterized in that, A gasket (19) is provided between the flange (18) and the drain pipe (1), and a bolt (20) passes vertically through the gasket (19).

8. A hydrogeological anti-blockage drainage device according to claim 1, characterized in that, The drain pipe (1) is provided with an equipment slot corresponding to the motor (13). The upper end face of the inner wall of the drain pipe (1) is provided with a rotating hole that communicates with the equipment slot. The output shaft of the motor (13) passes through the rotating hole.

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