Foundation pit support dewatering treatment device

Abstract

The utility model discloses a kind of foundation pit support precipitation treatment devices, it is related to foundation pit precipitation structure technical field, including support pipe and the sealing block of solid connection in support pipe bottom, the surface of the support pipe is wound with filter screen, the bottom of the sealing block is equipped with four equidistantly arranged installation grooves;The utility model is equipped with four equidistantly arranged limit beams on the surface of support pipe, cooperate the sliding connection structure of connecting block and limit beam on sealing block, form three-dimensional guide limit system, this structure can force support pipe when being put into well always be in the center position of well, keep vertical angle, fundamentally avoid the angle deviation and inclination problem caused by construction operation in the process of support pipe lowering, ensure that precipitation efficiency is uniform, reduce the risk of hole wall collapse, filter material uneven filling simultaneously caused by filter tube inclination, improve the security and reliability of foundation pit precipitation construction.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit dewatering structure technology, specifically a foundation pit support dewatering treatment device. Background Technology

[0002] In foundation pit construction, well dewatering is a key technology for controlling groundwater levels and ensuring the safety of foundation pit excavation. However, traditional well dewatering devices still have certain problems in practical applications.

[0003] For example, traditional filter pipes lack a vertical positioning structure when placed in a well. During the process of lowering the filter pipe into the well hole, due to construction operations and other reasons, the filter pipe is prone to uneven stress, which can cause the filter pipe to tilt. The tilting of the filter pipe will lead to uneven filling of the filter material, which will result in an unbalanced precipitation effect. Groundwater in some areas will be difficult to drain effectively, increasing the risk of water inrush in the foundation pit. At the same time, the tilted filter pipe will cause voids in the support layer between the borehole wall and the filter pipe, and the soil pressure on the borehole wall will be unbalanced, which can easily cause the collapse of loose soil layers or even bury the filter pipe. Utility Model Content

[0004] The purpose of this utility model is to provide a foundation pit support dewatering treatment device to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: including a support tube and a sealing block fixed to the bottom of the support tube, wherein a filter screen is wound around the surface of the support tube;

[0006] The bottom of the sealing block has four equally spaced mounting slots, and a connecting block is provided inside the mounting slots. The surface of the support tube has four equally spaced limiting beams, and limiting slots are provided on the limiting beams. One end of the connecting block passes through the interior of the limiting slot and is slidably connected to the limiting slot.

[0007] In a further embodiment, guide blocks are symmetrically mounted on the surface of the connecting block, and a guide groove is provided inside the mounting groove to slide and connect with the guide blocks.

[0008] In a further embodiment, the limiting groove is symmetrically fitted with sliding blocks, and the connecting block is provided with a sliding groove that is slidably connected to the sliding blocks.

[0009] In a further embodiment, the surface of the filter screen is wound with steel wire.

[0010] In a further embodiment, the surface of the support tube is provided with leakage holes.

[0011] In a further embodiment, both the support tube and the limiting beam are made of stainless steel.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention utilizes four equidistantly arranged limiting beams on the surface of the support pipe, along with a sliding connection structure between the connecting block on the sealing block and the limiting beams, to form a three-dimensional guiding and limiting system. This structure forces the support pipe to remain centered in the well when it is lowered, maintaining a vertical angle. This fundamentally avoids angular deviations and tilting caused by construction operations during the lowering of the support pipe, ensuring uniform dewatering efficiency. It also reduces the risks of hole wall collapse and uneven filter material filling caused by filter pipe tilting, thereby improving the safety and reliability of foundation pit dewatering construction. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0015] Figure 2 This is a partial exploded view of an embodiment of the present invention;

[0016] Figure 3 This is a partial exploded view of an embodiment of the present invention;

[0017] Figure 4 This is a schematic diagram of the connecting block according to an embodiment of the present utility model.

[0018] In the diagram: 1. Support pipe; 2. Sealing block; 3. Filter screen; 4. Mounting groove; 5. Connecting block; 6. Limiting beam; 7. Limiting groove; 8. Guide block; 9. Guide groove; 10. Sliding block; 11. Sliding groove; 12. Steel wire; 13. Leakage hole. Detailed Implementation

[0019] 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.

[0020] This embodiment discloses a foundation pit support dewatering treatment device, including a support pipe 1 and a sealing block 2 fixed to the bottom of the support pipe 1. A filter screen 3 is wound around the surface of the support pipe 1. Figure 1 , Figure 2 and Figure 3As shown, the support pipe 1 is located at the core of the device. Its function is to serve as the skeleton of the entire dewatering device, acting as a water conveyance channel, allowing infiltrated groundwater to collect and be pumped out. At the same time, it is also the mounting carrier for the filter screen 3, providing structural support for the entire device. The sealing block 2 is fixed to the bottom of the support pipe 1. Its main function is to seal the bottom of the support pipe 1, preventing groundwater from rushing in directly from the bottom of the support pipe 1 and carrying a large amount of mud and sand. This ensures that the water entering the support pipe 1 is relatively clean water after being filtered by the filter screen 3. The filter screen 3 is wrapped around the surface of the support pipe 1. Its function is to filter groundwater and block impurities such as mud and sand from entering the support pipe 1, avoiding pump blockage and affecting the dewatering effect. After installation, filter media needs to be filled in the gap between the filter screen 3 and the well hole.

[0021] Furthermore, guide blocks 8 are symmetrically mounted on the surface of the connecting block 5, and guide grooves 9 are provided inside the mounting groove 4 to slide and connect with the guide blocks 8, such as... Figure 1 , Figure 3 and Figure 4 As shown, guide blocks 8 are symmetrically assembled on the surface of connecting blocks 5, and guide grooves 9 are opened inside the mounting groove 4. The guide blocks 8 and guide grooves 9 form a sliding fit, allowing the guide blocks 8 to slide smoothly along the length of the guide grooves 9. The fit between the guide blocks 8 and guide grooves 9 constitutes an auxiliary guiding structure. On the one hand, it restricts the movement direction of the connecting blocks 5 in the mounting groove 4, ensuring that the connecting blocks 5 can only slide in the vertical direction, preventing the connecting blocks 5 from shifting laterally or rotating under force. On the other hand, the symmetrical double guides enhance the connection stability between the connecting blocks 5 and the mounting groove 4. During installation, the position of the connecting blocks 5 inside the mounting groove 4 must be determined so that all four connecting blocks 5 can slide and engage with the four limiting beams 6. After determining the position of the connecting blocks 5, the connecting blocks 5 can be welded and fixed to the sealing blocks 2.

[0022] Preferably, the surface of the filter screen 3 is wound with steel wire 12, and the surface of the support tube 1 is provided with leakage holes 13, such as... Figure 1 and Figure 2 As shown, the filter screen 3 is wrapped around the outer surface of the support pipe 1, and the steel wire 12 is wrapped and tied to the outer surface of the filter screen 3, forming a wrapping support for the filter screen 3. The steel wire 12 provides mechanical support for the filter screen 3 by wrapping and tying it to the surface of the filter screen 3, preventing the filter screen 3 from deforming or breaking during water flow impact, filter material compression, or construction and lowering. At the same time, it enhances the overall structural strength of the filter screen 3 and extends the service life of the filter screen 3. The leakage holes 13 are evenly opened on the pipe wall of the support pipe 1, and the position of the leakage holes 13 corresponds to the area covered by the filter screen 3. The leakage holes 13 serve as channels for groundwater to enter the support pipe 1. The clean groundwater filtered by the filter screen 3 can flow into the interior of the support pipe 1 through the leakage holes 13 and finally be pumped out by the pumping equipment to achieve the purpose of dewatering the foundation pit. Moreover, its even distribution can ensure the efficiency of groundwater infiltration and avoid local water accumulation from affecting the dewatering effect.

[0023] Furthermore, the bottom of the sealing block 2 has four equidistantly arranged mounting grooves 4, and a connecting block 5 is installed inside the mounting groove 4. The surface of the support tube 1 has four equidistantly arranged limiting beams 6, and limiting grooves 7 are formed on the limiting beams 6. One end of the connecting block 5 passes through the interior of the limiting groove 7 and slides in connection with it. Figure 1 , Figure 3 and Figure 4 As shown, four mounting slots 4 are equidistantly located at the bottom of the sealing block 2, and connecting blocks 5 are correspondingly installed in each mounting slot 4. The mounting slots 4 provide installation space for the connecting blocks 5 and serve as the connection carrier between the connecting blocks 5 and the sealing block 2, ensuring that the position of the connecting blocks 5 is fixed and corresponds to the limiting beams 6. The connecting blocks 5, as the connection medium between the sealing block 2 and the limiting beams 6, transmit the positioning effect of the sealing block 2 to the entire length of the support tube 1 through sliding engagement with the limiting slots 7, forming a continuous limiting from bottom to top. The four limiting beams 6 are equidistantly distributed on the surface of the support tube 1, corresponding one-to-one with the positions of the mounting slots 4. Limiting slots 7 are opened along the length of the limiting beams 6. The end of the connecting block 5 away from the mounting slot 4 passes through the limiting slot 7 of the corresponding limiting beam 6, forming a sliding engagement. Extending along the length of the support pipe 1, the limiting groove 7 and the connecting block 5 cooperate to form a three-dimensional guide frame, forcing the support pipe 1 to move only vertically in the well hole and restricting lateral displacement. The overall structure fixes the connecting block 5 through the installation groove 4. The connecting block 5 slides into the limiting groove 7. The limiting beam 6 constrains the position of the support pipe 1, achieving the centering of the support pipe 1 in the well hole, preventing angular deviation and tilting throughout the process, and ensuring the uniformity of precipitation and construction safety. During installation, the four limiting beams 6 need to be placed into the well hole in advance to achieve the purpose of limiting the installation of the support pipe 1. After installation, the limiting beams 6 can be pulled out for recycling and reuse, or the limiting beams 6 can be left in the well hole to improve the support strength of the well wall.

[0024] Finally, symmetrical sliding blocks 10 are fitted inside the limiting groove 7, and a sliding groove 11 is provided on the connecting block 5 to slide and connect with the sliding blocks 10. The support tube 1 and the limiting beam 6 are both made of stainless steel. Figure 3 and Figure 4As shown, the sliding blocks 10 are symmetrically assembled on the inner wall of the limiting groove 7, extending along the length of the limiting groove 7. The sliding grooves 11 are correspondingly opened on both sides of the connecting block 5, matching the position and size of the sliding blocks 10, forming a sliding fit. The sliding blocks 10 and the sliding grooves 11 together constitute a precise sliding limiting pair. On the one hand, the symmetrically arranged locking structure restricts the lateral swaying of the connecting block 5 in the limiting groove 7, ensuring that the connecting block 5 slides only along the vertical direction of the limiting groove 7, further enhancing the centering guidance accuracy of the support tube 1. On the other hand, By sliding the card block and the card slot together, the contact stress between the connecting block 5 and the limiting beam 6 is dispersed, reducing wear and improving structural durability. The support pipe 1 is the main body of the device, and the limiting beam 6 is fixed to the surface of the support pipe 1 at equal intervals. Both are made of stainless steel. Stainless steel has high strength and excellent corrosion resistance. The support pipe 1, as the main skeleton, can withstand the side pressure of the well and long-term erosion of groundwater, ensuring the stability of the water conveyance channel. The limiting beam 6, with the rigidity of stainless steel, maintains the shape stability of the guide structure.

[0025] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0026] 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, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A foundation pit support dewatering treatment device, comprising a support pipe (1) and a sealing block (2) fixed to the bottom of the support pipe (1), characterized in that: The surface of the support tube (1) is wrapped with a filter screen (3); The bottom of the sealing block (2) is provided with four equally spaced mounting grooves (4), and a connecting block (5) is provided inside the mounting groove (4). The surface of the support tube (1) is provided with four equally spaced limiting beams (6), and a limiting groove (7) is provided on the limiting beam (6). One end of the connecting block (5) passes through the inside of the limiting groove (7) and is slidably connected to the limiting groove (7).

2. The foundation pit support dewatering treatment device according to claim 1, characterized in that: The surface of the connecting block (5) is symmetrically equipped with guide blocks (8), and the interior of the mounting groove (4) is provided with a guide groove (9) that is slidably connected to the guide blocks (8).

3. The foundation pit support dewatering treatment device according to claim 1, characterized in that: The limiting groove (7) is symmetrically equipped with a sliding block (10), and the connecting block (5) is provided with a sliding groove (11) that is slidably connected to the sliding block (10).

4. The foundation pit support dewatering treatment device according to claim 1, characterized in that: The surface of the filter screen (3) is wrapped with steel wire (12).

5. The foundation pit support dewatering treatment device according to claim 1, characterized in that: The surface of the support tube (1) is provided with leakage holes (13).

6. The foundation pit support dewatering treatment device according to claim 1, characterized in that: The support tube (1) and the limiting beam (6) are both made of stainless steel.

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