Foundation pit dewatering composite filter pipe

Abstract

The utility model relates to the technical field of wastewater treatment, and disclose a foundation pit precipitation composite filter pipe, including installing the filter pipe body of water suction pipe end part, the one end of water suction pipe is connected with the replacement assembly close to filter pipe body, and the side that replacement assembly is away from water suction pipe is connected with a plurality of filter pipe body. The kind of foundation pit precipitation composite filter pipe, through installing multiple replaceable filter pipes at water suction pipe end part, and using replacement assembly to realize the switching of filter pipe, when the filter pipe that is being used appears breakage or blockage, cannot normally filter, can through replacement assembly and switch the standby filter pipe to the working position, thereby under the condition of not influencing the water pumping process, the replacement of filter pipe is completed, and the efficiency of water pumping and filtration is improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a composite filter pipe for foundation pit dewatering. Background Technology

[0002] Dewatering of foundation pits is an important measure taken during construction to prevent groundwater from flowing into the pit. Composite filter pipes play a key role in this situation, as they are designed to effectively extract groundwater while preventing soil particles from entering the pipes and causing blockages.

[0003] Patent CN220668779U discloses a composite water filter pipe with ultra-high porosity. The outer wall of the gear tube has several triangular teeth evenly distributed circumferentially, extending along the length of the gear tube. Within the adjacent triangular tooth grooves, the gear tube has several permeable holes connecting the inside and outside, spaced along its length. A screen wraps around the gear tube, with its inner side abutting against the top of the triangular teeth. Binding hoops fix the screen to the triangular teeth of the gear tube. Several binding hoops are also spaced along the length of the gear tube on the outside of the screen. A detachable plug is fixed to one end of the gear tube. The evenly distributed triangular teeth on the outer wall of the gear tube ensure that the effective permeable area on the circumference of the screen reaches over 90%, significantly improving the filtration porosity. Furthermore, the screen wrapping around the gear tube and being fixed with binding hoops avoids the problem of the screen "rolling up" and being damaged by friction when entering the protective sleeve, thus preventing sand leakage later. It features a simple structure, low cost, high porosity, and a strong screen connection.

[0004] However, the composite filter pipes in the above-mentioned technology still have the following problems: during wastewater drainage operations, the filter element inside the filter pipe may be damaged by impurities in the water (such as metal wires, glass fragments, metal shavings, etc.), or even cause the filter pipe to break. Once this happens, the drainage operation must be stopped, the damaged filter pipe must be pulled out and replaced, which seriously affects the drainage efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a composite filter pipe for foundation pit dewatering, which allows for real-time replacement of the filter pipe during drainage operations, thereby improving drainage efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a composite filter pipe for foundation pit dewatering, comprising a filter pipe body installed at the end of a pumping pipe, a replacement component connected to one end of the pumping pipe near the filter pipe body, and several filter pipe bodies connected to the side of the replacement component away from the pumping pipe.

[0007] Furthermore, the replacement components include a fixed disk and a rotating disk. A rotating motor is fixedly connected to the top center of the fixed disk. The output shaft of the rotating motor passes through the fixed disk and is fixedly connected to the rotating disk. A connecting hole is opened through the top of the fixed disk on one side of the lower rotating motor. Several mating holes are opened through the top of the rotating disk. The several mating holes are matched with the connecting hole. Several filter pipe bodies are located at the bottom of the rotating disk, and the several filter pipe bodies are respectively connected to the several mating holes. The water pumping pipe is connected to the side of the connecting hole away from the rotating disk.

[0008] Furthermore, a connecting pipe is fixed on the side of the fixed plate near the rotating motor. The connecting pipe is connected to the connecting hole, and the end of the connecting pipe away from the fixed plate is connected to the water pumping pipe.

[0009] Furthermore, the end of the connecting pipe away from the fixed plate is provided with a recessed groove, and the end of the water pumping pipe is sleeved on the outside of the recessed groove and fixedly connected by a clamp.

[0010] Furthermore, a sealing shell is provided on the outside of the rotary motor, which is fitted onto the outside of the rotary motor and fixedly connected to the top of the fixed plate.

[0011] Furthermore, a T-shaped groove is provided at the bottom of the fixed disk, and the rotating disk is located in the T-shaped groove and slidably connected to the T-shaped groove.

[0012] Furthermore, an annular mounting plate is fixedly connected to and communicates with the top of the filter pipe body, and the annular mounting plate is fixedly connected to the bottom of the rotating plate by several bolts.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This type of composite filter pipe for foundation pit dewatering installs multiple interchangeable filter pipes at the end of the pumping pipe and uses a replacement component to switch between the filter pipes. When the filter pipe in use is damaged or blocked and cannot filter properly, the replacement component can be used to switch the spare filter pipe to the working position, thereby completing the replacement of the filter pipe without affecting the pumping process and improving the efficiency of pumping and filtration. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall appearance and connection structure of this utility model;

[0016] Figure 2 Based on Figure 1 A partial cross-sectional schematic diagram of the connection structure;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the fixed disk of this utility model;

[0018] Figure 4 Based on Figure 3 Exploded view of the connection structure;

[0019] Figure 5 This is an exploded view of the connection structure between the rotating disk and the filter pipe of this utility model.

[0020] In the diagram: 1. Pumping pipe; 2. Filter pipe body; 3. Replacement component; 4. Connecting pipe; 5. Sealing shell; 6. Annular mounting plate; 31. Fixing plate; 32. Rotating plate; 33. Rotating motor; 301. Connecting hole; 302. Mating hole; 303. T-slot; 401. Recessed groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figures 1 to 5 A composite filter pipe for foundation pit dewatering includes a filter pipe body 2 installed at the end of a pumping pipe 1. A replacement component 3 is connected to one end of the pumping pipe 1 near the filter pipe body 2. Several filter pipe bodies 2 are connected to the side of the replacement component 3 away from the pumping pipe 1.

[0023] like Figures 1 to 5 As shown, the composite filter pipe for foundation pit dewatering in this utility model is similar in structure to existing composite filter pipes, such as the composite filter pipe with ultra-high porosity disclosed in patent publication number CN220668779UCN220668779U. The main improvement of this utility model lies in improving the filter pipe replacement efficiency during the filtration process and improving the efficiency of pumping and filtration operations. Figures 1 to 5 As shown, in use, the composite filter pipe for foundation pit dewatering of this utility model has multiple filter pipe bodies 2 installed at the bottom of the replacement component 3. Then, the pumping pipe 1 is connected to the replacement component 3, and one of the filter pipe bodies 2 is used to filter the foundation pit dewatering. The filtered water is then pumped out by the pumping pipe 1. When the filter pipe body 2 in use is damaged or blocked and cannot filter normally, the replacement component 3 can switch the spare filter pipe body 2 to the working position to achieve the purpose of quick replacement of the filter pipe body 2. The replacement of the filter pipe body 2 is completed without affecting the pumping process, thereby improving the efficiency of pumping and filtration.

[0024] like Figures 2 to 4As shown, the replacement component 3 includes a fixed disk 31 and a rotating disk 32. A rotating motor 33 is fixedly connected to the top center of the fixed disk 31. The output shaft of the rotating motor 33 passes through the fixed disk 31 and is fixedly connected to the rotating disk 32. A connecting hole 301 is provided through the top of the fixed disk 31 on one side of the lower rotating motor 33. Several mating holes 302 are provided through the top of the rotating disk 32. The several mating holes 302 are matched with the connecting holes 301. Several filter pipe bodies 2 are located at the bottom of the rotating disk 32, and the several filter pipe bodies 2 are respectively connected to the several mating holes 302. The water pumping pipe 1 is connected to the side of the connecting hole 301 away from the rotating disk 32. The rotary motor 33 is fixedly mounted on the fixed disk 31. Starting the rotary motor 33 drives the rotary disk 32 to rotate at the bottom of the fixed disk 31, causing multiple filter pipe bodies 2 at the bottom to exchange positions below the fixed disk 31. These bodies align with any mating hole 302 on the rotary disk 32 through the connecting hole 301 on the fixed disk 31. This allows the pit dewatering water to be filtered through the filter pipe body 2 at that position and then enter the pumping pipe 1 through the matched mating hole 302 and connecting hole 301, forming a pumping flow channel. When the filter pipe body 2 at that position is damaged, the pumping operation can be temporarily stopped. The rotary motor 33 then drives the rotary disk 32 to rotate, aligning the next mating hole 302 with the connecting hole 301. This allows for the rapid replacement of the filter pipe body 2 without pumping the pumping pipe 1. It should be noted that the rotary motor 33 is a stepper motor. Each time it starts, the rotary motor 33 rotates one mating hole 302 position, completing the position replacement between two adjacent mating holes 302.

[0025] like Figures 1 to 4 As shown, a connecting pipe 4 is fixed to the side of the fixed plate 31 near the rotary motor 33. The connecting pipe 4 is connected to the connecting hole 301, and the end of the connecting pipe 4 away from the fixed plate 31 is connected to the water pumping pipe 1. The water pumping pipe 1 is sleeved on the connecting pipe 4, thereby connecting and fixing the replacement component 3 to the water pumping pipe 1.

[0026] like Figures 2 to 4 As shown, the end of the connecting pipe 4 away from the fixed plate 31 is provided with a recessed groove 401. The end of the water pumping pipe 1 is sleeved on the outside of the recessed groove 401 and fixedly connected by a clamp. After the water pumping pipe 1 is sleeved on the connecting pipe 4, the connecting pipe 4 is fixed in the position of the recessed groove 401 by the clamp, which makes the connection between the water pumping pipe 1 and the connecting pipe 4 more secure and improves the sealing effect between the connecting pipe 4 and the water pumping pipe 1.

[0027] like Figures 1 to 4As shown, a sealing shell 5 is provided on the outside of the rotary motor 33. The sealing shell 5 is fitted onto the outside of the rotary motor 33 and fixedly connected to the top of the fixed plate 31. Using the sealing shell 5 to seal the rotary motor 33 on the fixed plate 31 can prevent water from entering and damaging the rotary motor 33 when replacing the component 3 in the pit. The top of the sealing shell 5 has a reserved outlet for the power cord of the rotary motor 33, and the outlet is sealed with waterproof glue. The rotary motor 33 only needs to be started when the filter pipe body 2 is replaced, and it will not generate a lot of heat, so no special heat dissipation treatment is required.

[0028] like Figures 1 to 5 As shown, a T-shaped groove 303 is provided at the bottom of the fixed plate 31, and the rotating plate 32 is located in the T-shaped groove 303 and slidably connected to it. The T-shaped groove 303 at the bottom of the fixed plate 31, which encloses the rotating plate 32, improves the connection strength between the rotating plate 32 and the fixed plate 31, limits the rotation of the rotating plate 32, and prevents it from shaking when driven by the rotating motor 33. Additionally, sealing strips can be installed at the edges of the T-shaped groove 303 and the rotating plate 32 (the resistance of the sealing strips must ensure that the rotating motor 33 can rotate normally), improving the sealing effect between the rotating plate 32 and the fixed plate 31, enhancing the stability of water flow between the connecting hole 301 and the corresponding mating hole 302, and preventing air leakage during pumping.

[0029] like Figure 5 As shown, an annular mounting plate 6 is fixedly connected and communicated with the top of the water filter pipe body 2. The annular mounting plate 6 is fixedly connected to the bottom of the rotating disk 32 by several bolts. The annular mounting plate 6 at the top of the water filter pipe body 2 can be installed and removed from the bottom of the rotating disk 32 by bolts, which facilitates the replacement of the water filter pipe body 2 at the corresponding mating hole 302 position at the bottom of the rotating disk 32. Furthermore, when installing the water filter pipe body 2, a sealing gasket can be placed between the annular mounting plate 6 and the rotating disk 32 to improve the sealing effect.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A composite filter pipe for foundation pit dewatering, comprising a filter pipe body (2) installed at the end of a pumping pipe (1), characterized in that: The end of the pumping pipe (1) near the filter pipe body (2) is connected to a replacement component (3), and the side of the replacement component (3) away from the pumping pipe (1) is connected to several filter pipe bodies (2).

2. The composite filter pipe for foundation pit dewatering according to claim 1, characterized in that: The replacement component (3) includes a fixed disk (31) and a rotating disk (32). A rotating motor (33) is fixedly connected to the middle of the top of the fixed disk (31). The output shaft of the rotating motor (33) passes through the fixed disk (31) and is fixedly connected to the rotating disk (32). A connecting hole (301) is opened through the top of the fixed disk (31) on one side of the lower rotating motor (33). A number of mating holes (302) are opened through the top of the rotating disk (32). The number of mating holes (302) are matched with the connecting holes (301). A number of filter pipe bodies (2) are located at the bottom of the rotating disk (32), and the number of filter pipe bodies (2) are connected to the number of mating holes (302) respectively. The water pump (1) is connected to the side of the connecting hole (301) away from the rotating disk (32).

3. The composite filter pipe for foundation pit dewatering according to claim 2, characterized in that: The fixed plate (31) is fixed with a connecting pipe (4) on the side near the rotary motor (33). The connecting pipe (4) is connected to the connecting hole (301). The end of the connecting pipe (4) away from the fixed plate (31) is connected to the water pumping pipe (1).

4. The composite filter pipe for foundation pit dewatering according to claim 3, characterized in that: The end of the connecting pipe (4) away from the fixed plate (31) is provided with a recessed groove (401), and the end of the pumping pipe (1) is sleeved on the outside of the recessed groove (401) and fixedly connected by a clamp.

5. The composite filter pipe for foundation pit dewatering according to claim 2, characterized in that: The rotary motor (33) is provided with a sealing shell (5) on its outer side. The sealing shell (5) is fitted on the outer side of the rotary motor (33) and fixedly connected to the top of the fixed plate (31).

6. The composite filter pipe for foundation pit dewatering according to claim 2, characterized in that: The bottom of the fixed disk (31) is provided with a T-shaped groove (303), and the rotating disk (32) is located in the T-shaped groove (303) and is slidably connected to the T-shaped groove (303).

7. The composite filter pipe for foundation pit dewatering according to claim 2, characterized in that: The top of the filter pipe body (2) is fixedly connected to and connected to an annular mounting plate (6), which is fixedly connected to the bottom of the rotating plate (32) by several bolts.

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