A mounting and supporting device for a foundation pit of civil engineering construction

The combined design of the base plate, support plate, pad frame and corner frame solves the problem of insufficient support strength and improves the stability of the foundation pit support device, which is suitable for foundation pit construction of low-rise buildings.

CN224591460UActive Publication Date: 2026-08-04CHINA RAILWAY LIUYUAN GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA RAILWAY LIUYUAN GRP CO LTD
Filing Date
2025-09-10
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

The existing support devices for foundation pits in civil engineering construction have insufficient support strength and poor overall stability.

Method used

The design incorporates a combination of components such as a base plate, support plate, pad frame, corner frame, and lifting ring. By connecting the slides and fixing bolts, the support area and stability are increased, and the triangular support structure is used to enhance the support performance.

Benefits of technology

It improves the support stability of the support plate on the side wall of the foundation pit and enhances the overall stability of the support device, making it suitable for foundation pit construction of low-rise buildings.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224591460U_ABST
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Abstract

The utility model relates to the technical field of civil engineering construction, provide a kind of installation supporting device for civil engineering construction foundation pit, including bottom plate (1), main runner (2) is set up on bottom plate (1), first slider (3) is slidably arranged in main runner (2), supporting plate (4) is fixedly connected on first slider (3), two times runner (5) are also set up on bottom plate (1), second slider (6) is slidably arranged in times runner (5), two second sliders (6) are fixedly connected with pad frame (7), two first corner frame (9) are detachably connected on bottom plate (1) by fixed peg (8), the both ends of first corner frame (9) are all pasted support pad frame (7), the utility model can increase supporting area, improve supporting stability.
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Description

Technical Field

[0001] This utility model relates to the field of civil engineering construction technology, and more specifically, to an installation support device for foundation pits in civil engineering construction. Background Technology

[0002] Foundation pit support refers to the measures taken to support, reinforce, and protect the sidewalls and surrounding environment of the foundation pit in order to ensure the safety of underground structure construction and the surrounding environment.

[0003] Patent document CN221001042U discloses an installation support device for foundation pits in civil engineering construction. The device includes a fixed base, a support mechanism extending to its top, an adjustment mechanism, and a positioning rod extending to its bottom. The support mechanism includes an installation cavity, and a threaded rod is rotatably connected inside the cavity. This installation support device for foundation pits first installs the fixed base into the bottom wall of the foundation pit using the positioning rod. Then, the worm gear is rotated forward, driving the threaded rod to rotate forward through the meshing worm wheel. Because the threads on the two threaded rods are in opposite directions, and due to the constraint of the bottom limiting block of the threaded block, the two threaded blocks cause two first support plates to move in opposite directions until the first support plates are in contact with the side wall of the foundation pit, completing the installation of the entire support device.

[0004] In the above technical solution, the support plate only achieves limiting support through the cooperation of threaded rod and worm gear, and its support point exists only at the lower end of the support plate. Not only is the support strength insufficient, but the overall stability is also poor. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, this utility model provides an installation support device for foundation pits in civil engineering construction, which can increase the support area and improve the support stability.

[0006] This utility model is achieved through the following technical solution:

[0007] An installation support device for foundation pits in civil engineering construction includes a base plate with a main sliding groove. A first slider slides in the main sliding groove and a support plate is fixedly connected to the first slider. The base plate also has two secondary sliding grooves with second sliders sliding in each of the secondary sliding grooves. Both second sliders are fixedly connected to a pad. Two first corner brackets are detachably connected to the base plate by fixing bolts. Both ends of the first corner brackets are fitted to support the pad.

[0008] Furthermore, a connecting block is fixed between the two first corner brackets, and the lower end of the connecting block slides within the main slide groove.

[0009] Furthermore, two third sliders slide within the main slide groove, and the upper ends of both third sliders are fixedly connected to the second corner bracket.

[0010] Furthermore, the connecting block contacts and supports the adjacent third slider.

[0011] Furthermore, lifting rings are fixedly connected to the base plate, the support plate, and the pad frame.

[0012] Furthermore, a reinforcing frame is fixedly connected inside the first corner frame.

[0013] Furthermore, the pad frame includes a frame and a plurality of connecting beams fixed to the frame.

[0014] Furthermore, the base plate is provided with a through groove adapted to the insertion rod, and the insertion rod passes through the base plate.

[0015] Furthermore, the upper end face of the insertion rod is flush with the upper end face of the base plate.

[0016] Furthermore, an insertion end is fixedly connected to the side of the base plate near the side wall of the pit.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] In this utility model, both ends of the first corner frame are attached to the support pad frame, and the two first corner frames support the four corners of the support pad frame, thereby enabling the pad frame to support the support plate. By setting the pad frame, the support area of ​​the support plate is increased, thereby improving the support stability of the support plate to the side wall of the foundation pit. The first corner frame and the second corner frame cooperate to support the pad frame, thereby further improving the support stability of the support plate. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a structural breakdown of the present invention. Figure 1 ;

[0022] Figure 3 This is a structural breakdown of the present invention. Figure 2 ;

[0023] Figure 4 This is a schematic diagram of the base plate of this utility model.

[0024] The attached diagram is labeled as follows: 1-base plate; 2-main slide rail; 3-first slider; 4-support plate; 5-secondary slide rail; 6-second slider; 7-pad; 71-frame; 72-connecting beam; 8-fixing bolt; 9-first corner bracket; 10-connecting block; 11-third slider; 12-second corner bracket; 13-lifting ring; 14-reinforcing frame; 15-insertion rod; 16-insertion end. Detailed Implementation

[0025] 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.

[0026] like Figure 1-4 As shown, this utility model discloses a specific embodiment of an installation support device for foundation pits in civil engineering construction. It includes a base plate 1, a main sliding groove 2 on the base plate 1, a first sliding block 3 sliding within the main sliding groove 2, and a support plate 4 fixedly connected to the first sliding block 3. The support plate 4 is used to contact the sidewall of the foundation pit. Secondary sliding grooves 5 are also provided on both sides of the main sliding groove 2 on the base plate 1, and second sliding blocks 6 sliding within each of the secondary sliding grooves 5. Both second sliding blocks 6 are fixedly connected to a pad frame 7, which is used to contact the support plate 4. The cross-sectional area of ​​the pad frame 7 is the same as the cross-sectional area of ​​the support plate 4. Two first corner brackets 9 are detachably connected to the base plate 1 via fixing bolts 8. Both ends of the first corner brackets 9 are in contact with the support pad frame 7, and the two first corner brackets 9 support the four corners of the pad frame 7, thereby supporting the support plate 4. By setting the pad frame 7, the support area of ​​the support plate 4 is increased, thereby improving the stability of the support plate 4 in supporting the sidewall of the foundation pit.

[0027] A connecting block 10 is fixedly connected between the two first corner brackets 9. The lower end of the connecting block 10 slides in the main slide groove 2. When installing the first corner brackets 9, the two first corner brackets 9 are tied with a hoist and lifted to the side of the base plate 1 with the help of a crane. The first corner brackets 9 are pushed so that the connecting block 10 slides into the main slide groove 2, thus fixing the sliding trajectory of the two first corner brackets 9 and facilitating the installation of the first corner brackets 9. Similarly, when installing the support plate 4 and the pad 7, the support plate 4 and the pad 7 are lifted to the side of the base plate 1 with the help of a hoist and a crane. The first slider 3 slides into the main slide groove 2 and the second slider 6 slides into the secondary slide groove 5, thus fixing the sliding trajectory of the support plate 4 and the pad 7 and facilitating the installation.

[0028] Two third sliders 11 slide within the main slide groove 2. The upper ends of both third sliders 11 are fixedly connected to the second corner brackets 12. The second corner brackets 12 are also used to fit and support the pad frame 7. When the first corner bracket 9 is fixed to the base plate 1 by the fixing bolts 8, the connecting block 10 between the two first corner brackets 9 just contacts the adjacent third slider 11, enabling the second corner bracket 12 to support the pad frame 7. The first corner brackets 9 and the second corner brackets 12 cooperate to support the pad frame 7, thereby further improving the support stability of the support plate 4.

[0029] Lifting rings 13 are fixedly connected to the base plate 1, support plate 4 and pad frame 7. The lifting rings 13 facilitate the binding of lifting ropes, which helps to cooperate with the crane for lifting operations.

[0030] A reinforcing frame 14 is fixedly connected inside the first corner frame 9. The reinforcing frame 14 and the first corner frame 9 form a triangular support. The triangle has stability, thereby further improving the support performance of the first corner frame 9.

[0031] The pad frame 7 includes a frame 71 and multiple connecting beams 72 fixedly connected to the frame 71. The second slider 6 is fixedly connected to the frame 71. The first corner bracket 9 is attached to and supported by the frame 71, and the second corner bracket 12 is attached to and supported by the connecting beams 72.

[0032] The base plate 1 has a through groove adapted to the insertion rod 15. The insertion rod 15 is inserted through the base plate 1 and its tip is inserted into the ground of the pit, thereby fixing the base plate 1 in the pit. It works with the support plate 4 to support the side wall of the pit. The through groove on the base plate 1 is adapted to the insertion rod 15. After the insertion rod 15 is inserted into the base plate 1, the upper end face of the insertion rod 15 is flush with the upper end face of the base plate 1, which does not affect the installation of the support plate 4, the frame 71 and the first corner frame 9.

[0033] An insertion end 16 is fixedly connected to the side of the base plate 1 near the side wall of the pit. When the insertion end 16 is inserted into the side wall of the pit, the pressure of the contact with the side wall of the pit makes the base plate 1 more stable, thereby improving the stability of the support device.

[0034] The foundation pit mentioned in this embodiment is a foundation pit for a low-rise building (such as a 1-3 story civil building), with a depth of 1-3 meters, which can meet the basic requirements of foundation burial depth. At the same time, the height of the support plate 4 is also 1-3 meters, and in this embodiment it is 1.5 meters.

[0035] The working principle of the installation support device for foundation pit in this embodiment is as follows: In use, firstly, with the help of a hoisting rope, the insertion end 16 of the base plate 1 is inserted to the bottom of the foundation pit sidewall. Then, the insertion rod 15 is inserted into the base plate 1 and the ground. After that, the support plate 4, the pad frame 7, the second corner frame 12 and the first corner frame 9 are installed in sequence. The fixing bolts 8 are tightened to complete the installation of the device. Both ends of the first corner frame 9 are attached to the support pad frame 7. The two first corner frames 9 support the four corners of the pad frame 7, so that the pad frame 7 supports the support plate 4. By setting the pad frame 7, the support area of ​​the support plate 4 is increased, thereby improving the support stability of the support plate 4 to the foundation pit sidewall. The first corner frame 9 and the second corner frame 12 cooperate to support the pad frame 7, thereby further improving the support stability of the support plate 4.

[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A construction site foundation installation support device, characterized by: Includes a base plate (1), on which a main slide groove (2) is provided, in which a first slider (3) slides, and a support plate (4) is fixedly connected to the first slider (3). The base plate (1) also has two secondary slide grooves (5), in which a second slider (6) slides, and both second sliders (6) are fixedly connected to a pad frame (7). The base plate (1) is detachably connected to two first corner frames (9) by fixing bolts (8), and both ends of the first corner frames (9) are fitted to support the pad frame (7).

2. The installation supporting device for foundation pit of civil construction according to claim 1, characterized in that: A connecting block (10) is fixed between the two first corner brackets (9), and the lower end of the connecting block (10) slides in the main slide groove (2).

3. The installation supporting device for foundation pit of civil construction according to claim 2, characterized in that: Two third sliders (11) slide within the main slide groove (2), and the upper ends of the two third sliders (11) are fixedly connected to the second corner bracket (12).

4. The installation supporting device for foundation pit of civil construction according to claim 3, characterized in that: The connecting block (10) contacts and supports the adjacent third slider (11).

5. The installation supporting device for foundation pit of civil construction according to claim 1, characterized in that: Lifting rings (13) are fixedly connected to the base plate (1), the support plate (4), and the pad frame (7).

6. The installation supporting device for foundation pit of civil construction according to claim 1, characterized in that: A reinforcing frame (14) is fixedly connected inside the first corner frame (9).

7. The installation supporting device for foundation pit of civil construction according to claim 1, characterized in that: The pad frame (7) includes a frame (71) and a plurality of connecting beams (72) fixed within the frame (71).

8. The installation supporting device for foundation pit of civil construction according to claim 1, characterized in that: The base plate (1) has a through groove adapted to the insertion rod (15), and the insertion rod (15) is inserted into the base plate (1).

9. The installation support device for foundation pits in civil engineering construction according to claim 8, characterized in that: The upper end face of the insertion rod (15) is flush with the upper end face of the base plate (1).

10. The installation support device for foundation pits in civil engineering construction according to claim 1, characterized in that: An insertion end (16) is fixedly connected to the side of the base plate (1) near the side wall of the pit.