Foundation pit side wall supporting device

Abstract

The utility model relates to the technical field of foundation pit supporting devices, and discloses a foundation pit side wall supporting device which comprises a first baffle unit, a second baffle unit is installed on the outer side of the first baffle unit, and installation holes are formed in the first baffle unit and the second baffle unit. A fixing unit is fixedly arranged on the end face of one side of the first baffle unit and comprises a fixing block fixedly arranged on the outer end face of one side of the first baffle unit. And an ejector rod unit is arranged on the inner side of the fixing unit, the ejector rod unit comprises a supporting rod arranged on one side of the first baffle unit, and a first reinforcing frame is fixedly arranged on the end face of the side, close to the ejector rod unit, of the first baffle unit. According to the foundation pit side wall supporting device, the problems that most of existing foundation pit side wall supporting devices are not convenient to continuously increase, the side wall is generally supported by straight plate profiles, and the vertical compression resistance effect under unit mass is common are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of foundation pit support devices, specifically a foundation pit sidewall support device. Background Technology

[0002] During foundation pit construction, in order to ensure the safety of underground structure construction and the surrounding environment, it is generally necessary to adopt reinforcement and protection measures such as retaining or foundation pit support for the side walls and surrounding environment of the foundation pit.

[0003] Existing foundation pit sidewall support devices include pile walls or diaphragm walls, cement-soil walls, soil nailing walls, and reverse arch walls. These devices reinforce and protect the foundation pit sidewalls by increasing their support. For example, a foundation pit sidewall support device for construction, with Chinese patent application number CN219527675U, allows the second support plate to remain in the optimal position of the wall when the support member changes its support angle, thereby greatly improving the support effect on the wall.

[0004] However, most of the existing foundation pit sidewall support devices on the market still have certain defects in use. For example, most existing foundation pit sidewall support devices are not convenient for continuous addition of support devices, and the sidewall support usually adopts plate support, which has a general vertical compressive strength, thus having certain defects in use. Therefore, we propose a foundation pit sidewall support device to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a foundation pit sidewall support device to solve the problems mentioned in the background art, such as that most existing foundation pit sidewall support devices are not convenient for continuous addition of support devices, and that the sidewall support usually adopts plate support, which has a general vertical compressive strength.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a pit sidewall support device, comprising a first baffle unit, a second baffle unit installed on the outside of the first baffle unit, and both the first baffle unit and the second baffle unit having mounting holes inside, and first tapered insert rods fixedly arranged at equal intervals on the bottom end faces of the first baffle unit and the second baffle unit, and a fixing unit fixedly arranged on one side end face of the first baffle unit, the fixing unit including a fixing block fixedly arranged on the outer end face of one side of the first baffle unit;

[0007] The inner side of the fixing unit is provided with a top rod unit, and the top rod unit includes a support rod provided on one side of the first baffle unit. A first reinforcing frame is fixedly provided on the end face of the first baffle unit near the top rod unit, and a second reinforcing frame is fixedly connected to the end of the first reinforcing frame away from the first baffle unit by a bolt structure.

[0008] As a preferred technical solution of this utility model, the first baffle unit and the second baffle unit are both composed of a first support plate, a second support plate and a third support plate, and the second support plate and the third support plate are integrally fixed at both ends of the first support plate.

[0009] As a preferred embodiment of the present invention, the second support plate and the third support plate are symmetrically arranged at both ends of the first support plate, and both the second support plate and the third support plate are inclined about the first support plate.

[0010] As a preferred embodiment of this utility model, the second support plate and the third support plate are symmetrically provided with mounting holes, and the mounting holes are provided with bolt structures that connect the first baffle unit and the second baffle unit.

[0011] As a preferred technical solution of this utility model, the fixing unit further includes an installation groove opened inside the fixing block, and the axial section of the installation groove is arranged in an "L" shape. The fixing block is symmetrically arranged on the outer end face of the first baffle unit.

[0012] As a preferred embodiment of this utility model, the fixing unit further includes a mounting rod that passes through the fixing block via a mounting groove, and a second connecting block and a first connecting block are symmetrically arranged on the outer side of the mounting rod.

[0013] As a preferred embodiment of this utility model, the second connecting block and the first connecting block are fixedly connected by a bolt structure, the first connecting block is fixedly connected to one end of the support rod, and the other end of the support rod is fixedly provided with a second tapered insert.

[0014] As a preferred embodiment of this utility model, the support rod is inclined relative to the first support plate, and the second reinforcing frame is fixedly installed on the outer surface of the support rod by welding and provides support for the support rod.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the foundation pit sidewall support device solves the problems that most existing foundation pit sidewall support devices are not convenient to continuously add support devices, and the sidewalls are usually supported by straight plate profiles, resulting in a generally poor vertical compressive strength per unit mass.

[0016] 1. The second and third support plates are symmetrically provided with mounting holes, and the mounting holes are provided with bolt structures that connect the first baffle unit and the second baffle unit. By fixing multiple sets of first baffle units and second baffle units in sequence, the first baffle unit and the second baffle unit continuously form an uninterrupted bent baffle structure, which can increase the actual service length of the pit sidewall support device and facilitate continuous installation.

[0017] 2. Both the first baffle unit and the second baffle unit are composed of a first support plate, a second support plate, and a third support plate. Since the second support plate and the third support plate are symmetrically fixed at both ends of the first support plate, and the second support plate and the third support plate are inclined about the first support plate, the structural volume of the first baffle unit and the second baffle unit is increased by the second support plate and the third support plate, so that the first baffle unit and the second baffle unit have greater compressive strength in the direction perpendicular to the side wall, and the overall support effect is better. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the exploded structure of the top rod unit of this utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure of multiple sets of first baffle units and second baffle units of this utility model;

[0021] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0022] In the figure: 1. First baffle unit; 101. First support plate; 102. Second support plate; 103. Third support plate; 2. Second baffle unit; 3. Mounting hole; 4. First tapered insert; 500. Fixing unit; 501. Fixing block; 502. Mounting groove; 503. Mounting rod; 600. Top rod unit; 601. Support rod; 602. First connecting block; 603. Second connecting block; 7. Second tapered insert; 8. First reinforcing frame; 9. Second reinforcing frame. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-4 This utility model provides a technical solution: a pit sidewall support device, including a first baffle unit 1, a second baffle unit 2 installed on the outside of the first baffle unit 1, and mounting holes 3 are provided inside both the first baffle unit 1 and the second baffle unit 2. Figure 1 and Figure 3As shown, both the first baffle unit 1 and the second baffle unit 2 are composed of a first support plate 101, a second support plate 102, and a third support plate 103. The second support plate 102 and the third support plate 103 are integrally fixed at both ends of the first support plate 101. The second support plate 102 and the third support plate 103 are symmetrically arranged at both ends of the first support plate 101, and both the second support plate 102 and the third support plate 103 are inclined about the first support plate 101. By increasing the structural volume of the first baffle unit 1 and the second baffle unit 2 through the second support plate 102 and the third support plate 103, the first baffle unit 1 and the second baffle unit 2 have greater compressive strength in a unit direction, that is, the first baffle unit 1 and the second baffle unit 2 have greater compressive strength in the direction perpendicular to the sidewall.

[0025] Furthermore, the second support plate 102 and the third support plate 103 are symmetrically provided with mounting holes 3, and the mounting holes 3 are provided with bolt structures that connect the first baffle unit 1 and the second baffle unit 2. By fixing multiple sets of the first baffle unit 1 and the second baffle unit 2 together, the actual service length of the pit sidewall support device can be increased.

[0026] Furthermore, by fixing the first conical insert rod 4 at equal intervals on the bottom end face of the first baffle unit 1 and the second baffle unit 2, the first baffle unit 1 and the second baffle unit 2 can be inserted into the bottom end of the pit side wall through the first conical insert rod 4, which can improve the installation stability of the first baffle unit 1 and the second baffle unit 2.

[0027] Specific examples Figure 1 and Figure 2 As shown, a fixing unit 500 is fixedly provided on one side end face of the first baffle unit 1. The fixing unit 500 includes a fixing block 501 fixedly provided on the outer end face of one side of the first baffle unit 1, and the fixing block 501 is symmetrically provided on the outer end face of the first baffle unit 1. The fixing unit 500 also includes an installation groove 502 opened inside the fixing block 501, and the fixing unit 500 also includes an installation rod 503 that passes through the installation groove 502 and is provided inside the fixing block 501. The installation groove 502 plays a limiting role for the installation rod 503. Since the axial section of the installation groove 502 is set in an "L" shape, the installation rod 503 is inserted into the fixing block 501 through the installation groove 502. The installation rod 503 is pressed against the inner wall of the installation groove 502 by the pressure of the top rod unit 600.

[0028] Specific examples Figure 2 and Figure 4As shown, a top rod unit 600 is provided inside the fixing unit 500, and the top rod unit 600 includes a support rod 601 provided on one side of the first baffle unit 1. A second connecting block 603 and a first connecting block 602 are symmetrically arranged on the outer side of the mounting rod 503, and the first connecting block 602 is fixedly connected to one end of the support rod 601. By fixing the second connecting block 603 and the first connecting block 602 to the outer side of the mounting rod 503 with bolts, one end of the support rod 601 can be limited and fixed. Figure 1 and Figure 2 As shown, a second tapered insert 7 is fixedly provided at the other end of the support rod 601. By inserting the second tapered insert 7 into the bottom of the pit, the other end of the support rod 601 can be limited and fixed.

[0029] Specific examples Figure 1 and Figure 2 As shown, a first reinforcing frame 8 is fixedly provided on the end face of the first baffle unit 1 near the top rod unit 600, and a second reinforcing frame 9 is fixedly connected to the end of the first reinforcing frame 8 away from the first baffle unit 1 by a bolt structure. The second reinforcing frame 9 is fixedly provided on the outer surface of the support rod 601 by welding. The first reinforcing frame 8 and the second reinforcing frame 9 play a role in connecting and supporting the support rod 601 and the first baffle unit 1.

[0030] The working principle of this utility model is as follows: When using this pit sidewall support device, the first baffle unit 1 and the second baffle unit 2 are first inserted into the bottom end of the pit sidewall through the first tapered insert 4. Since the first baffle unit 1 and the second baffle unit 2 are connected by the second support plate 102 and the third support plate 103, and the second support plate 102 and the third support plate 103 are symmetrically provided with mounting holes 3 inside, and the mounting holes 3 are provided with bolt structures that connect the first baffle unit 1 and the second baffle unit 2, the first baffle unit 1 and the second baffle unit 2 can be fixedly connected. Since the second support plate 102 and the third support plate 103 are inclined about the first support plate 101, the structural volume of the first baffle unit 1 and the second baffle unit 2 is increased by the second support plate 102 and the third support plate 103, so that the first baffle unit 1 and the second baffle unit 2 have greater compressive strength in a unit direction.

[0031] Furthermore, by sequentially and alternately fixing multiple sets of first baffle units 1 and second baffle units 2, the actual usable length of the pit sidewall support device can be increased.

[0032] Specific examples Figure 1 and Figure 2As shown, the support rod 601 is inclined relative to the first baffle unit 1, and the bottom end of the support rod 601 is inserted into the bottom of the pit through the second conical insert rod 7, which further supports the first baffle unit 1. Figure 2 and Figure 4 As shown, the first baffle unit 1 and the second baffle unit 2 are located at the edge of the pit sidewall. When the pit sidewall exerts inward pressure on the first baffle unit 1, the first baffle unit 1 exerts pressure on the top rod unit 600 towards the inside of the pit through the fixing unit 500. This causes the mounting rod 503 to be pressed against the inner wall of the mounting groove 502 by the pressure of the top rod unit 600, thereby supporting the first baffle unit 1.

[0033] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are 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 device for supporting a side wall of a foundation pit, comprising a first baffle unit (1), characterized in that: A second baffle unit (2) is installed on the outside of the first baffle unit (1), and both the first baffle unit (1) and the second baffle unit (2) have mounting holes (3) inside. The bottom surfaces of the first baffle unit (1) and the second baffle unit (2) are fixedly provided with first tapered inserts (4) at equal intervals. A fixing unit (500) is fixedly provided on one side end face of the first baffle unit (1). The fixing unit (500) includes a fixing block (501) fixedly provided on the outer end face of one side of the first baffle unit (1). The fixing unit (500) is provided with a top rod unit (600) on its inner side, and the top rod unit (600) includes a support rod (601) provided on one side of the first baffle unit (1). A first reinforcing frame (8) is fixedly provided on the end face of the first baffle unit (1) near the top rod unit (600), and a second reinforcing frame (9) is fixedly connected to the end of the first reinforcing frame (8) away from the first baffle unit (1) by a bolt structure.

2. A lateral bracing device for a foundation pit according to claim 1, wherein: The first baffle unit (1) and the second baffle unit (2) are both composed of a first support plate (101), a second support plate (102) and a third support plate (103). The two ends of the first support plate (101) are respectively integrally fixed with the second support plate (102) and the third support plate (103).

3. A retaining wall arrangement for a foundation trench according to claim 2, wherein: The second support plate (102) and the third support plate (103) are symmetrically arranged at both ends of the first support plate (101), and both the second support plate (102) and the third support plate (103) are inclined about the first support plate (101).

4. A retaining wall arrangement for a foundation trench according to claim 3, wherein: The second support plate (102) and the third support plate (103) are symmetrically provided with mounting holes (3), and the mounting holes (3) are provided with bolt structures that connect the first baffle unit (1) and the second baffle unit (2).

5. A lateral bracing device for a foundation pit according to claim 1, wherein: The fixing unit (500) also includes a mounting groove (502) opened inside the fixing block (501), and the axial section of the mounting groove (502) is arranged in an "L" shape. The fixing block (501) is symmetrically arranged on the outer end face of the first baffle unit (1).

6. A wall bracing system according to claim 5 wherein: The fixing unit (500) also includes a mounting rod (503) that passes through the mounting groove (502) and is disposed inside the fixing block (501). The mounting rod (503) is symmetrically provided with a second connecting block (603) and a first connecting block (602) on its outer side.

7. A retaining wall arrangement for a foundation trench according to claim 6 wherein: The second connecting block (603) and the first connecting block (602) are fixedly connected by a bolt structure. The first connecting block (602) is fixedly connected to one end of the support rod (601), and the other end of the support rod (601) is fixedly provided with a second tapered insert (7).

8. A foundation pit sidewall support device according to claim 7, characterized in that: The support rod (601) is inclined relative to the first support plate (101), and the second reinforcing frame (9) is fixedly installed on the outer surface of the support rod (601) by welding and plays a supporting role for the support rod (601).

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