A filtered precipitation well

By designing structures such as permeable plates, filter cylinders, permeable grids, and rotating jacks, the problems of uneven water quality and easy damage to water pumps in dewatering wells were solved, achieving water quality neutralization and stable operation of water pumps, and extending their service life.

CN116537237BActive Publication Date: 2026-06-12CHINA CONSTR EIGHT ENG DIV CORP LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA CONSTR EIGHT ENG DIV CORP LTD
Filing Date
2023-05-30
Publication Date
2026-06-12

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Abstract

This invention relates to the field of dewatering well technology, specifically a filter-type dewatering well, comprising a simulated opening, support rods, crossbeams, lifting components, dewatering well casing, connecting rings, slide rails, rotary jacks, buried bolts, permeable plates, connecting rods, baffles, filter cylinders, permeable grilles, and injection pipes. This invention uses the injection pipe to inject different solutions to neutralize acidic or alkaline wastewater. A control valve on the injection pipe controls the amount of solution entering. Multiple injection holes on the injection pipe ensure more uniform mixing with the wastewater during injection. The filter cylinder, baffles, permeable plates, and permeable grilles filter and neutralize large particles of debris that fall during construction. If the position of the dewatering well casing needs fine-tuning, the built-in rotary jack can be used to press the casing downwards. The rotary jack allows adjustment of the fixing frame position before use, facilitating the fixing of the buried bolts to the fixing frame.
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Description

Technical Field

[0001] This invention relates to the field of precipitation well technology, specifically a filtering precipitation well. Background Technology

[0002] A dewatering well is a small well used to drain water accumulated in mine tunnels or mining areas. During mining operations, underground drainage systems are typically available, allowing water from the mining area or tunnels to be channeled along ditches into dewatering wells at regular intervals. From there, water flows into a water tank via underground tunnels connected to the dewatering wells, and is then pumped to the surface through dedicated drainage wells or directly out of the surface through drainage tunnels. A collection well is used to collect and store groundwater or seepage water. A dewatering well is a type of dewatering well. Groundwater dewatering is an unavoidable requirement in many underground excavation projects and open-pit mining operations, where dewatering is carried out under the constraints of a given water level reduction requirement to meet construction requirements. These dewatering wells are installed within the foundation pit. Further information: Dewatering wells serve to lower the groundwater level or drain groundwater. They vary in depth, depending on the dewatering requirements; some deep dewatering wells can even reach 50 or 60 meters.

[0003] Chinese Patent CN211498904U discloses a highly permeable and highly filtration rainwater well component, which includes a steel reinforcement layer, an outer filter layer, and an inner filter layer. The outer filter layer is arranged around the steel reinforcement layer. The steel reinforcement layer has multiple gaps between the steel reinforcement bars from top to bottom. The outer filter layer covers the gaps between the steel reinforcement bars, and the steel reinforcement layer encloses and forms a permeation cavity. Due to soil deposition and pressure, more soil tends to accumulate at the bottom of the rainwater well component. The outer filter layer is more prone to blockage or filtration failure as it goes down, resulting in a decrease in the filtration effect of the rainwater well component. Now, by placing an inner filter layer inside the permeation cavity formed by the steel reinforcement layer, the outer filter layer filters once, and then the inner filter layer filters again, so that the filtration effect at the bottom of the rainwater well component is almost the same as that at the top, achieving a better filtration effect.

[0004] However, the aforementioned patent has some shortcomings. In practical use, due to the wide range of applications of dewatering wells, the aforementioned device involves directly placing the water pump inside the dewatering well for extraction. In some complex environments, the water quality inside the dewatering well may have varying or excessive pH levels. Over long-term use, the water pump may be corroded, reducing its lifespan. Furthermore, when installing the water pump, the diameter of the dewatering well casing is usually small. If the downward flow of water is unstable, it may cause the water pump to collide with the inner wall of the casing, resulting in damage to both the casing and the water pump. Therefore, a filter-type dewatering well is proposed to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a filtering rainwater well to solve the problems mentioned in the background art.

[0006] The technical solution of the present invention is as follows: a filter-type dewatering well includes a simulated opening, a support rod fixedly connected to the upper surface of the simulated opening, a crossbeam fixedly connected to the top of the support rod, a lifting assembly provided on the upper surface of the crossbeam, a dewatering well casing provided inside the simulated opening, a connecting ring fixedly connected to the upper surface of the dewatering well casing, a slide rail provided on the surface of the connecting ring, multiple rotating jacks slidably connected to the inner wall of the slide rail, buried bolts provided on the upper surface of the simulated opening, a permeable plate provided on the inner wall of the dewatering well casing, multiple connecting rods fixedly connected to the inner wall of the dewatering well casing, the other end of the multiple connecting rods fixedly connected to the same baffle, a filter cylinder provided on the inner wall of the dewatering well casing, multiple permeable grids provided on one side of the filter cylinder, an injection pipe provided inside the filter cylinder, both ends of the injection pipe penetrating the surface of the dewatering well casing and respectively installed with connecting pipes, two control valves installed on the surface of the injection pipe, and multiple injection holes opened on the surface of the injection pipe.

[0007] Preferably, the casing of the dewatering well is provided with a water pump sliding support inside, and a fixing frame is installed at the top of the water pump sliding support. Multiple mounting holes are opened through the upper surface of the fixing frame. The inner wall of the mounting holes is detachably connected to the buried bolts, and the surface of the fixing frame is detachably connected to the output end of multiple rotating jacks.

[0008] Preferably, the lifting assembly includes a drive device mounted on the upper surface of the crossbeam, a lifting device is provided below the drive device, a connecting block is provided below the lifting device, and lifting hooks are fixedly connected to both sides of the connecting block.

[0009] Preferably, two vertical plates are fixedly connected to the lower surface of the crossbeam, and electric push rods are fixedly connected to the opposite sides of the two vertical plates.

[0010] Preferably, the output ends of both electric push rods are fixedly connected to a fixing block, and the opposite surfaces of both vertical plates are provided with a sliding groove.

[0011] Preferably, the inner walls of both slides are slidably connected to sliders, the opposite surfaces of the two fixed blocks are fixedly connected to limit blocks, and the surfaces of the plurality of sliders are respectively fixedly connected to the surfaces of the two limit blocks.

[0012] Preferably, the upper surfaces of the two limiting blocks are provided with clearance holes, and the inner walls of the clearance holes are slidably connected with lifting ropes, which are attached to the lifting device.

[0013] This invention provides an improved filtered precipitation well, which has the following improvements and advantages compared with the prior art:

[0014] Firstly, this invention can neutralize acidic or alkaline wastewater by injecting different solutions through an injection pipe. The control valve on the injection pipe can control the amount of solution entering. The multiple injection holes on the injection pipe can make the solution mix more evenly with the wastewater during injection. The filter cylinder, baffle, permeable plate, and permeable grid can filter the wastewater and neutralize large particles of debris that fall during construction. If the position of the dewatering well casing needs to be finely adjusted, the dewatering well casing can be pressed down using the built-in rotary jack. The position of the fixing frame can be adjusted before use by rotating the jack, which facilitates the fixing of the fixing frame with the buried bolts.

[0015] Secondly, this invention, driven by a drive device, can move the lifting device. This movement of the lifting device causes the connecting block to move the two lifting hooks, which in turn move the entire fixed frame. This allows the water pump to rise or fall linearly inside the dewatering well casing. Combined with the water pump sliding support, this makes the pump's operation more stable. A limit block secures the lifting rope, preventing it from swaying. The electric push rod and the fixed block work together to move the limit block within the sliding groove, ensuring stable operation. This also allows for fixing the lifting rope at different heights. By setting two sets of lifting hooks, the fixed frame can be symmetrically fixed, enabling raising and lowering of the frame and making it more stable during these processes.

[0016] Thirdly, this invention uses buried bolts that can be driven into hardened ground to facilitate the application of force when using the rotary jack. The rotary jack has a groove at the bottom and is mounted on a fixed bracket at the top. The angle of the fixed bracket can be adjusted by rotating it. The fixed bracket facilitates the application of force when using the rotary jack. One end is fixed by the buried bolt. The fixed bracket has mounting holes for easy rotation, installation, and disassembly of the rotary jack. The permeable grating can be set according to the depth of the rainwater well and can also block larger particles from entering, preventing large impurities from damaging the pump impeller. The small gaps allow neutralized sewage to pass through, making it more convenient to use. Attached Figure Description

[0017] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the wellhead three-dimensional structure of the present invention;

[0020] Figure 3 This is a three-dimensional cross-sectional structural diagram of the dewatering well casing of the present invention;

[0021] Figure 4 This is a three-dimensional cross-sectional structural diagram of the dewatering well casing of the present invention;

[0022] Figure 5 This is a cross-sectional perspective view of the filter cartridge structure of the present invention;

[0023] Figure 6 This is a three-dimensional structural diagram of the lifting device of the present invention;

[0024] Figure 7 This is an enlarged structural diagram of point A in the present invention;

[0025] Figure 8 This is a three-dimensional structural diagram of the lifting device part of the present invention.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Simulated opening; 2. Support rod; 3. Crossbeam; 4. Lifting assembly; 401. Drive device; 402. Lifting device; 403. Connecting block; 404. Lifting hook; 405. Lifting rope; 406. Vertical plate; 407. Electric push rod; 408. Fixing block; 409. Limiting block; 410. Slide groove; 411. Sliding block; 5. Dewatering well casing; 6. Buried bolt; 7. Connecting ring; 8. Slide rail; 9. Rotary jack; 10. Fixing frame; 11. Mounting hole; 12. Water pump sliding support; 13. Injection pipe; 14. Connecting pipe; 15. Control valve; 16. Filter cylinder; 17. Permeable fence; 18. Permeable plate; 19. Connecting rod; 20. Baffle. Detailed Implementation

[0028] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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 a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] Example 1:

[0032] This invention provides an improved filtering precipitation well. The technical solution of this invention is as follows: Figures 1-8As shown: A filtering-type dewatering well includes a simulated opening 1. A support rod 2 is fixedly connected to the upper surface of the simulated opening 1. A crossbeam 3 is fixedly connected to the top of the support rod 2. A lifting assembly 4 is installed on the upper surface of the crossbeam 3. A dewatering well casing 5 is installed inside the simulated opening 1. A connecting ring 7 is fixedly connected to the upper surface of the dewatering well casing 5. A slide rail 8 is installed on the surface of the connecting ring 7. Multiple rotating jacks 9 are slidably connected to the inner wall of the slide rail 8. Buried bolts 6 are installed on the upper surface of the simulated opening 1. The inner wall of the dewatering well casing 5 is permeable. Plate 18, multiple connecting rods 19 are fixedly connected to the inner wall of the dewatering well casing 5, and the other end of the multiple connecting rods 19 is fixedly connected to the same baffle 20. The inner wall of the dewatering well casing 5 is provided with a filter cylinder 16, and multiple permeable grids 17 are provided on one side of the filter cylinder 16. An injection pipe 13 is provided inside the filter cylinder 16. The two ends of the injection pipe 13 penetrate the surface of the dewatering well casing 5 and are respectively installed with connecting pipes 14. Two control valves 15 are installed on the surface of the injection pipe 13, and multiple injection holes are opened on the surface of the injection pipe 13.

[0033] The above-described structure or mechanism allows for the installation of buried bolts 6 into hardened ground to facilitate the application of force when using the rotary jack 9. The rotary jack 9 has a groove at the bottom and is mounted on a fixed support at the top, allowing for rotation to adjust the angle of the fixed bracket 10. The fixed bracket facilitates the application of force to the rotary jack 9 during use, and one end is secured by the buried bolts 6. The fixed bracket has mounting holes 11 for easy rotation, installation, and disassembly of the rotary jack 9. The injection pipe 13 has a row of small holes on its surface, allowing for the injection of solutions of different pH levels to mitigate corrosion of the water pump in sewage. The permeable barrier 17 is designed according to the depth of the dewatering well. The fence can block larger particles from entering and damaging the pump impeller, while the small gaps allow neutralized sewage to pass through. The permeable plate 18 is set at the bottom of the dewatering well. During use, water seepage will inevitably occur around the dewatering well. The permeable plate 18 filters the sewage, which then seeps upwards and is pumped out by the pump. Together with the baffle 20, it can block large particles to a certain extent. The filter cylinder 16 faces the outlet of the abandoned pipe directly. The side of the adjacent dewatering well casing 5 has many large gaps to allow water to flow through and be filtered. The filter cylinder 16 can hold a lot of filtering and neutralizing materials.

[0034] Furthermore, the interior of the dewatering well casing 5 is provided with a water pump sliding support 12, and a fixing frame 10 is installed at the top of the water pump sliding support 12. Multiple mounting holes 11 are opened through the upper surface of the fixing frame 10. The inner wall of the mounting holes 11 is detachably connected to the buried bolts 6, and the surface of the fixing frame 10 is detachably connected to the output end of multiple rotating jacks 9.

[0035] The above-mentioned structure or mechanism includes: a dewatering well casing 5 with a certain wall thickness to withstand the pressure from all sides; a water pump sliding support 12 with its bottom and top both located on the inner wall of the dewatering well casing 5; the water pump can slide down along the water pump sliding support 12 to keep the water pump as centered as possible to avoid affecting the water suction effect; a support frame is located below the water pump sliding support 12 to hold the water pump, and this support frame is a certain distance away from the permeable plate 18 to reduce the water pump sucking in impurities; if the water pump needs to be repaired, it can be lifted up along the water pump sliding support 12.

[0036] Example 2:

[0037] Based on the first embodiment of this application, a filtering rainwater well is provided. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment. The second embodiment of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0038] like Figures 1-8 As shown: The lifting assembly 4 includes a drive device 401 mounted on the upper surface of the crossbeam 3. A lifting device 402 is located below the drive device 401. A connecting block 403 is located below the lifting device 402. Lifting hooks 404 are fixedly connected to both sides of the connecting block 403. Two vertical plates 406 are fixedly connected to the lower surface of the crossbeam 3. Electric push rods 407 are fixedly connected to the opposite sides of the two vertical plates 406. Fixed blocks 408 are fixedly connected to the output ends of the two electric push rods 407. The two vertical plates 406 are provided with sliding grooves 410 through their opposite surfaces. The inner walls of the two sliding grooves 410 are slidably connected to sliders 411. The opposite surfaces of the two fixed blocks 408 are fixedly connected to limit blocks 409. The surfaces of the multiple sliders 411 are fixedly connected to the surfaces of the two limit blocks 409 respectively. The upper surfaces of the two limit blocks 409 are provided with clearance holes through their surfaces. The inner walls of the clearance holes are slidably connected to lifting ropes 405. The lifting ropes 405 are attached to the lifting device 402.

[0039] Using the above structure or mechanism: the drive device 401 and the lifting device 402 are existing technologies, and the whole is a movable pulley group. The drive device 401 can be used to tighten or loosen the lifting rope 405 on the lifting device 402, thereby lifting the hook 404 in a straight line. The support rod 2 can be buried above the simulated opening 1 or directly fixed to it. The sliding grooves 410 that are opened through the opposite surfaces of the two vertical plates 406, together with the slider 411 inside the sliding grooves 410, can make the limiting block 409 more stable in movement. The lifting device 402 consists of two pulleys, and the lifting rope 405 is attached to the surface of the two pulleys.

[0040] Working Principle: When this filter-type dewatering well is in use, the user injects different solutions through the injection pipe 13 to neutralize acidic or alkaline wastewater. The control valve 15 on the injection pipe 13 controls the amount of solution entering. Several injection holes on the injection pipe 13 ensure more uniform mixing with the wastewater. Connecting pipes 14 at both ends of the injection pipe 13 facilitate the injection of neutralizing solution into the pipe. The filter cylinder 16, baffle 20, permeable plate 18, and permeable grille 17 filter and neutralize large particles of debris that fall during construction. If the position of the dewatering well casing 5 needs fine-tuning, the built-in rotating jack 9 can be used to press the casing 5 downwards. The rotating jack 9 allows for adjustment of the position of the fixing frame 10 before use. The buried bolt 6 secures the fixing frame 10. Driven by the drive device 401, the lifting device 402 moves. The movement of the lifting device 402 causes the connecting block 403 to move the two lifting hooks 404, which in turn causes the lifting hooks 404 to move the fixing frame 10 as a whole. This causes the water pump to rise or fall linearly inside the dewatering well casing 5. When used in conjunction with the water pump sliding support 12, the water pump operates more stably. The lifting rope 405 is fixed by the limit block 409 to prevent the lifting rope 405 from swaying. The electric push rod 407 and the fixing block 408 work together to move the limit block 409 in the groove 410, making the limit block 409 run more stably and allowing the lifting rope to be fixed at different heights.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A filtering precipitation well, comprising a simulated cave entrance (1), characterized in that: A support rod (2) is fixedly connected to the upper surface of the simulated opening (1). A crossbeam (3) is fixedly connected to the top of the support rod (2). A lifting assembly (4) is provided on the upper surface of the crossbeam (3). A dewatering well casing (5) is provided inside the simulated opening (1). A connecting ring (7) is fixedly connected to the upper surface of the dewatering well casing (5). A slide rail (8) is provided on the surface of the connecting ring (7). Multiple rotating jacks (9) are slidably connected to the inner wall of the slide rail (8). Buried bolts (6) are provided on the upper surface of the simulated opening (1). A permeable plate (18) is provided on the inner wall of the dewatering well casing (5). Multiple connecting rods (19) are fixedly connected to the inner wall of the well casing (5). The other end of the multiple connecting rods (19) is fixedly connected to the same baffle (20). A filter cylinder (16) is provided on the inner wall of the dewatering well casing (5). Multiple permeable grids (17) are provided on one side of the filter cylinder (16). An injection pipe (13) is provided inside the filter cylinder (16). Both ends of the injection pipe (13) penetrate the surface of the dewatering well casing (5) and are respectively installed with connecting pipes (14). Two control valves (15) are installed on the surface of the injection pipe (13). Multiple injection holes are opened on the surface of the injection pipe (13). The inside of the well casing (5) is provided with a water pump sliding support (12). A fixing frame (10) is installed at the top of the water pump sliding support (12). Multiple mounting holes (11) are opened through the upper surface of the fixing frame (10). The inner wall of the mounting hole (11) is detachably connected to the buried bolt (6). The surface of the fixing frame (10) is detachably connected to the output end of multiple rotating jacks (9).

2. The filtering rainwater well according to claim 1, characterized in that: The lifting assembly (4) includes a drive device (401) mounted on the upper surface of the crossbeam (3), a lifting device (402) is provided below the drive device (401), a connecting block (403) is provided below the lifting device (402), and lifting hooks (404) are fixedly connected to both sides of the connecting block (403).

3. A filtering rainwater well according to claim 2, characterized in that: Two vertical plates (406) are fixedly connected to the lower surface of the crossbeam (3), and electric push rods (407) are fixedly connected to the opposite sides of the two vertical plates (406).

4. A filtering rainwater well according to claim 3, characterized in that: The output ends of the two electric push rods (407) are fixedly connected to a fixing block (408), and the opposite surfaces of the two vertical plates (406) are provided with a sliding groove (410).

5. A filtering rainwater well according to claim 4, characterized in that: The inner walls of the two slides (410) are slidably connected with sliders (411), and the opposite surfaces of the two fixed blocks (408) are fixedly connected with limit blocks (409). The surfaces of the multiple sliders (411) are respectively fixedly connected to the surfaces of the two limit blocks (409).

6. A filtering rainwater well according to claim 5, characterized in that: Both of the limiting blocks (409) have through holes on their upper surfaces, and the inner walls of the holes are slidably connected to lifting ropes (405), which are attached to the lifting device (402).