Seepage-proof building foundation pit drainage structure

Abstract

The utility model relates to the technical field of foundation pit drainage, in particular to an anti-seepage building foundation pit drainage structure which comprises a mounting frame, four side walls of the mounting frame are respectively provided with an outer frame, a sponge is mounted in each outer frame, a movable frame-shaped pressing plate is mounted in each outer frame, a supporting frame is mounted in the mounting frame, and a water inlet and a water outlet are formed in the supporting frame. The support frame comprises a mounting disc capable of moving up and down; according to the utility model, the sponge is arranged in the outer frame, so that water seeping from the inner wall of the foundation pit can be absorbed, and the sponge can be extruded through the frame-shaped pressing plate which can move towards the sponge, so that the sponge is extruded to drain water; and the adjusting motor and the lead screw are arranged to adjust the height of the whole mounting frame so as to adapt to foundation pits with different depths.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit drainage technology, specifically to a water-proof building foundation pit drainage structure. Background Technology

[0002] In the construction industry, foundation pit drainage is a crucial step. During the excavation process, due to factors such as high groundwater levels or rainwater infiltration, large amounts of groundwater or surface water often seep into the foundation pit. The presence of this water not only affects the stability of the foundation pit but may also lead to safety accidents such as slippage and collapse of the pit walls, posing a serious threat to personnel and equipment at the construction site.

[0003] Traditional methods for draining foundation pits often involve using pumps to directly extract water from the pit, or guiding water to lower levels via drainage ditches or sump pits for discharge. However, these methods frequently suffer from low drainage efficiency, incomplete drainage, and susceptibility to blockages. Especially when encountering significant seepage or deep groundwater, traditional methods often fall short, resulting in ineffective drainage and consequently impacting construction progress and project quality.

[0004] Furthermore, traditional foundation pit drainage structures have significant shortcomings in waterproofing. Due to factors such as materials and construction techniques, foundation pit walls often have seepage channels, causing water to seep out and resulting in leakage. This seepage not only increases drainage difficulty but can also damage the stability of the foundation pit walls, leading to safety hazards. Therefore, we propose a waterproof foundation pit drainage structure. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a water-proof drainage structure for building foundation pits.

[0006] The technical solution of this utility model is:

[0007] A water-proof drainage structure for a building foundation pit includes an installation frame. Each of the four side walls of the installation frame has an outer frame containing a sponge. A movable frame-shaped pressure plate is also installed within the outer frame. A support frame is installed inside the installation frame. The support frame includes a vertically movable installation plate. Four hydraulic cylinders are fixed to the outer circumference of the installation plate. Each hydraulic cylinder's piston rod is fixedly connected to a connecting block, which is fixedly connected to the center of the outer wall of the frame-shaped pressure plate. The support frame also includes two symmetrically arranged installation plates. A central plate is located between the two installation plates. A lead screw, threadedly connected to the installation plate, is rotatably connected to the bottom of the central plate. An adjusting motor with an output shaft coaxially connected to the installation plate is fixedly installed on the central plate.

[0008] As a preferred technical solution, the central disk is fixedly connected to two mounting plates by two symmetrically arranged connecting rods.

[0009] As a preferred technical solution, an extension rod is integrally formed on each of the opposite outer walls of the mounting plate, and two fixing bolts are symmetrically provided on each mounting plate.

[0010] As a preferred technical solution, each of the extension rods is fixedly connected to a guide rod at the bottom end away from the mounting plate, and the guide rod is plugged into the mounting bracket.

[0011] As a preferred technical solution, a fixing post is fixedly connected to the bottom of the mounting plate, the bottom of the fixing post is fixedly connected to the bottom of the mounting frame, and the lead screw extends into the fixing post and is threadedly connected to it.

[0012] As a preferred technical solution, a water pump is fixedly installed on one of the mounting plates, the water pump has an inlet pipe installed at its inlet, the end of the inlet pipe away from the water pump extends to near the bottom of the mounting frame, and the water pump has a drain pipe installed at its outlet.

[0013] As a preferred technical solution, the guide rod is longer than the lead screw, and the guide rod never detaches from the mounting frame during the up-and-down movement of the mounting frame.

[0014] As a preferred technical solution, the mounting bracket has an opening for mounting the outer frame, and the outer ring wall of the frame-shaped pressure plate is tightly fitted with the inner ring wall of the opening.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention uses a sponge inside the outer frame to absorb water seeping from the inner wall of the foundation pit. A frame-shaped pressure plate that can move towards the sponge can squeeze the sponge to drain water. An adjustable motor and lead screw are used to adjust the height of the entire mounting frame to accommodate foundation pits of different depths. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the support frame in this utility model;

[0019] Figure 3 In this utility model Figure 1 Top view of a partial structure;

[0020] Figure 4 This is a schematic diagram of the internal structure of the outer frame in this utility model;

[0021] The meanings of the labels in the diagram are as follows:

[0022] 1. Mounting bracket; 10. Outer frame; 11. Sponge; 12. Frame-shaped pressure plate; 2. Support frame; 20. Mounting plate; 21. Extension rod; 22. Fixing bolt; 23. Connecting rod; 24. Center plate; 25. Adjusting motor; 26. Screw rod; 27. Fixing column; 28. Mounting plate; 29. ​​Guide rod; 210. Connecting block; 211. Hydraulic cylinder; 3. Water pump; 30. Inlet pipe; 31. Drain pipe. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0024] Please see Figures 1-4 This utility model provides a technical solution:

[0025] The seepage-proof building foundation pit drainage structure includes a mounting frame 1. Each of the four side walls of the mounting frame 1 is provided with an outer frame 10. A sponge 11 is installed inside the outer frame 10. A movable frame-shaped pressure plate 12 is installed inside the outer frame 10. A support frame 2 is installed inside the mounting frame 1. The support frame 2 includes a mounting plate 28 that can move up and down. Four hydraulic cylinders 211 are fixed to the outer circumference of the mounting plate 28. The piston rod of each hydraulic cylinder 211 is fixedly connected to a connecting block 210. The connecting block 210 is fixedly connected to the center of the outer wall of the frame-shaped pressure plate 12. The support frame 2 also includes two symmetrically arranged mounting plates 20. A central plate 24 is provided between the two mounting plates 20. The bottom of the central plate 24 is rotatably connected to a screw 26 that is threaded to the mounting plate 28. An adjusting motor 25 with an output shaft fixedly connected to the mounting plate 28 is fixedly installed on the central plate 24. The sponge 11 placed inside the outer frame 10 can absorb water seeping from the inner wall of the pit, and the sponge 11 can be squeezed by the frame-shaped pressure plate 12 moving towards the sponge 11 to expel the water from the sponge 11. The height of the entire mounting frame 1 can be adjusted by the adjustable motor 25 and the lead screw 26 to adapt to pits of different depths.

[0026] In a preferred embodiment, the central disk 24 is fixedly connected to the two mounting plates 20 via two symmetrically arranged connecting rods 23. The connection between the central disk 24 and the mounting plates 20 via the connecting rods 23 enhances the structural stability of the support frame 2 and ensures the coordinated movement and stability of the components during adjustment.

[0027] In a preferred embodiment, each of the opposite outer walls of the mounting plate 20 has an extension rod 21 integrally formed thereon, and each mounting plate 20 is symmetrically provided with two fixing bolts 22. The design of the extension rods 21 and fixing bolts 22 facilitates the overall fixing of the mounting plate 20 and its support frame 2 to the top of the pit, improving installation convenience and structural stability.

[0028] In a preferred embodiment, each extension rod 21 has a guide rod 29 fixedly connected to the end furthest from the mounting plate 20 at its bottom. The guide rod 29 is plugged into the mounting frame 1. The plugging connection between the guide rod 29 and the mounting frame 1 provides additional guidance and support for the support frame 2, ensuring the stability and accuracy of the support frame 2 during vertical movement.

[0029] In a preferred embodiment, a fixing post 27 is fixedly connected to the bottom of the mounting plate 28. The bottom of the fixing post 27 is fixedly connected to the bottom of the mounting bracket 1, and the lead screw 26 extends into the fixing post 27 and is threadedly connected to it. The design of the fixing post 27 provides stable support and guidance for the lead screw 26, ensuring the stability and accuracy of the lead screw 26 during rotation, thereby improving the accuracy of the adjustment motor 25 in controlling the position of the mounting plate 28.

[0030] In a preferred embodiment, a water pump 3 is fixedly mounted on one of the mounting plates 20. An inlet pipe 30 is installed at the inlet of the water pump 3, with one end of the inlet pipe 3 extending to near the bottom of the mounting frame 1. A drain pipe 31 is installed at the outlet of the water pump 3. The design of the water pump 3, its inlet pipe 30, and its drain pipe 31 effectively removes water accumulated in the foundation pit, avoiding the impact of accumulated water on the stability and waterproofing effect of the foundation pit, and improving the practicality and reliability of the entire drainage structure.

[0031] In this preferred embodiment, the guide rod 29 is longer than the lead screw 26, and the guide rod 29 remains attached to the mounting frame 1 during its vertical movement. This design ensures that the guide rod 29 provides effective guidance and support throughout the adjustment process, preventing structural instability or damage caused by the guide rod 29 detaching from the mounting frame 1.

[0032] In a preferred embodiment, the mounting bracket 1 has an opening for mounting the outer frame 10, and the outer ring wall of the frame-shaped pressure plate 12 fits tightly against the inner ring wall of the opening. This design improves the tightness and stability of the frame-shaped pressure plate 12 on the mounting bracket 1, ensuring the effectiveness and durability of the waterproof sealing effect. It also facilitates the installation and replacement of the outer frame 10 and the frame-shaped pressure plate 12.

[0033] When using the waterproof drainage structure for building foundation pits of this utility model:

[0034] When using the waterproof drainage structure for building foundation pits of this utility model, the entire structure must first be installed into the foundation pit. The specific installation steps include: fixing the entire support frame 2 and mounting frame 1 to the top of the foundation pit or a suitable support structure using the extension rod 21 and fixing bolts 22 on the mounting plate 20, ensuring the stability of the structure. At this time, the guide rod 29 is plugged into the mounting frame 1, providing additional guidance and support for the support frame 2, ensuring the stability and accuracy of the structure during subsequent adjustments.

[0035] After installation, waterproofing and drainage work begins. Sponge 11, as the main absorbent material, is installed inside the outer frame 10 and fits tightly against the inner wall of the pit. When moisture seeps out from the inner wall of the pit, sponge 11 will quickly absorb it.

[0036] To enhance waterproofing and drain water from the sponge 11, the central disc 24 is rotated by adjusting the motor 25. The central disc 24 and the mounting disc 28 are threaded together by a lead screw 26. Therefore, when the central disc 24 rotates, it moves the mounting disc 28 up and down along the lead screw 26 to place the entire structure within the pit. A hydraulic cylinder 211 on the mounting disc 28 drives a frame-shaped pressure plate 12 to move within the outer frame 10 via a connecting block 210. As the frame-shaped pressure plate 12 moves towards the sponge 11, it squeezes the sponge 11, squeezing out the absorbed water, which flows towards the bottom of the mounting frame 1.

[0037] In addition, to further improve drainage efficiency, a water pump 3 is fixedly installed on one of the mounting plates 20. The water pump 3 draws water from the bottom of the pit through the inlet pipe 30 and discharges the water out of the pit through the drain pipe 31. In this way, even if there is a large amount of water in the pit, it can be quickly drained, avoiding the impact of water accumulation on the stability of the pit and the waterproofing effect.

[0038] It should be added that the bottom of the mounting bracket 1 is provided with a water inlet hole to ensure that the water at the bottom of the foundation pit can enter the pumping range of the water pump 3.

[0039] In summary, the waterproofing structure for building foundation pits of this invention achieves effective waterproofing and drainage of the foundation pit through multiple mechanisms, including water absorption by the sponge 11, drainage by the squeezing of the frame-shaped pressure plate 12, position adjustment by the adjusting motor 25, and auxiliary drainage by the water pump 3, thereby improving the stability and safety of the foundation pit. Furthermore, this structure also boasts advantages such as convenient installation, flexible adjustment, and good stability, making it suitable for waterproofing needs of foundation pits of varying depths and widths.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A water-proof drainage structure for building foundation pits, including a mounting frame (1), characterized in that: The mounting bracket (1) has an outer frame (10) on each of its four side walls. A sponge (11) is installed inside the outer frame (10). A movable frame-shaped pressure plate (12) is installed inside the outer frame (10). A support frame (2) is installed inside the mounting bracket (1). The support frame (2) includes a mounting plate (28) that can move up and down. Four hydraulic cylinders (211) are fixed to the outer circumference of the mounting plate (28). The piston rod of each hydraulic cylinder (211) is fixedly connected to a... The connecting block (210) is fixedly connected to the center of the outer wall of the frame-shaped pressure plate (12). The support frame (2) also includes two symmetrically arranged mounting plates (20). A central plate (24) is provided between the two mounting plates (20). The bottom of the central plate (24) is rotatably connected to a lead screw (26) that is threadedly connected to the mounting plate (28). An adjusting motor (25) with an output shaft that is coaxially fixedly connected to the mounting plate (28) is fixedly installed on the central plate (24).

2. The seepage-proof building foundation pit drainage structure as described in claim 1, characterized in that: The central disk (24) is fixedly connected to two mounting plates (20) by two symmetrically arranged connecting rods (23).

3. The seepage-proof building foundation pit drainage structure as described in claim 2, characterized in that: An extension rod (21) is integrally formed on the outer walls of the opposite sides of each mounting plate (20), and two fixing bolts (22) are symmetrically provided on each mounting plate (20).

4. The seepage-proof building foundation pit drainage structure as described in claim 3, characterized in that: Each of the extension rods (21) has a guide rod (29) fixedly connected to the end of its bottom furthest from the mounting plate (20), and the guide rod (29) is plugged into the mounting bracket (1).

5. The seepage-proof building foundation pit drainage structure as described in claim 4, characterized in that: The bottom of the mounting plate (28) is fixedly connected to a fixing post (27), the bottom of the fixing post (27) is fixedly connected to the bottom of the mounting frame (1), and the screw rod (26) extends into the fixing post (27) and is threadedly connected to it.

6. The seepage-proof building foundation pit drainage structure as described in claim 5, characterized in that: A water pump (3) is fixedly installed on one of the mounting plates (20). The water pump (3) has an inlet pipe (30) installed at its inlet. The end of the inlet pipe (30) away from the water pump (3) extends to the bottom of the mounting frame (1). The water pump (3) has a drain pipe (31) installed at its outlet.

7. The seepage-proof building foundation pit drainage structure as described in claim 6, characterized in that: The guide rod (29) is longer than the lead screw (26), and the guide rod (29) never detaches from the mounting frame (1) during the up-and-down movement of the mounting frame (1).

8. The seepage-proof building foundation pit drainage structure as described in claim 7, characterized in that: The mounting bracket (1) has an opening for mounting the outer frame (10), and the outer ring wall of the frame-shaped pressure plate (12) is in close contact with the inner ring wall of the opening.

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