Foundation pit support frame

Abstract

The utility model provides a kind of foundation pit support frame, including rotating support and support frame, the rotating support both sides are connected with fixed column, the fixed column one end is connected with rotating support, the other end is connected with base, the base is fixed on support frame, the rotating support is connected with fixed column threadedly.The utility model provides a kind of foundation pit support frame, single, non-integral rotating support is arranged between the support frame of both sides, can first with the inner wall of the two sides of foundation pit Support frame is placed, then rotating support is installed fixed hoop after being pasted to fixed column inner wall, then rotating support is rotated, so that support frame moves in the direction of being away from rotating support, so that support frame can complete the support effect to the inner wall of foundation pit, since rotating support is single, so the support frame of both sides can be placed one by one, and efficiency is higher when construction operation.

Description

Technical Field

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

[0002] With the continuous acceleration of urbanization, the development and utilization of underground space has become an important part of the urbanization process. When carrying out underground projects such as foundation pits, the surrounding foundation and soil conditions will be damaged to a certain extent. At this time, it is necessary to build a support frame for the soil at the edge of the foundation pit, and then reinforce the side wall of the foundation pit to ensure the safety of the foundation pit and the surrounding environment.

[0003] Existing foundation pit support systems typically use support plates to support the inner walls of the pit, with the two ends of the support plates connected to the inner bottom wall of the pit via support columns. However, due to the complex soil conditions at the bottom of the pit, which may include unstable soil such as soft or wet soil, the stability of the support columns may be insufficient, affecting the safety of the entire pit. Therefore, additional struts are added between the supports on both sides of the pit to mutually support each other and achieve mutual support of the inner walls. However, due to the varying widths of the pits, the length of the struts needs to be customized during actual construction, and the customized length may deviate during use, resulting in unsatisfactory reinforcement. Alternatively, adjustable-length struts can be used to connect the support frames on both sides. While this is convenient for adjustment, it requires moving and placing the support frames on both sides simultaneously, which is very time-consuming and labor-intensive in actual construction.

[0004] This case arose in order to resolve the aforementioned issues. Summary of the Invention

[0005] Technical problems to be solved The purpose of this utility model is to provide a foundation pit support frame to solve the problems mentioned in the background art.

[0006] Technical solution To achieve the above objectives, this utility model provides the following technical solution: a foundation pit support frame, comprising a rotating support rod and a support frame, wherein fixed columns are connected to both sides of the rotating support rod, one end of the fixed column is connected to the rotating support rod, and the other end is connected to a base, the base is fixed on the support frame, and the rotating support rod is threadedly connected to the fixed column.

[0007] Preferably, it also includes a fixing hoop, one end of the fixing column connected to the rotating support rod is semi-cylindrical, and the semi-cylindrical fixing columns on both sides of the rotating support rod are symmetrically arranged, and the inner surfaces of the fixing hoop and the fixing column are provided with threads.

[0008] Preferably, the thread directions at both ends of the rotating support rod and the thread directions inside the fixing columns on both sides are symmetrically arranged, and the thread direction on the inner surface of the fixing hoop is the same as and matches the thread direction on the inner surface of the corresponding fixing column.

[0009] Preferably, the outer surface of the fixing column is provided with a fixing block, the fixing block and the fixing hoop abut against each other, and the upper and lower sides of the fixing block and the fixing hoop are provided with fixing holes that are perpendicular to and concentric with the axis of the fixing column.

[0010] Preferably, a driving ring is fixed at the center of the fixed column, and a driving element is provided on the outer surface of the driving ring. Beneficial effects

[0011] After adopting the above technical solution, this utility model has the following advantages compared with the prior art: This utility model provides a foundation pit support frame, in which separate, non-integrated rotating support rods are set between the support frames on both sides. The support frame can be placed against the inner walls of both sides of the foundation pit first, and then the rotating support rod is installed against the inner wall of the fixed column and a fixing hoop is installed. Then the rotating support rod is rotated, causing the support frame to move away from the rotating support rod, so that the support frame can complete the support function of the inner wall of the foundation pit. Since the rotating support rod is set separately, the support frames on both sides can be placed one by one, which is more efficient during construction. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the present invention; Figure 2 This is a schematic diagram of the separation of this utility model; In the diagram: 1 Rotating support rod, 2 Fixed column, 3 Base, 4 Support frame, 5 Fixed hoop, 6 Fixed block, 7 Fixed hole, 8 Drive ring. Detailed Implementation

[0013] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0014] This utility model embodiment provides a foundation pit support frame, such as Figure 1-2 As shown, it includes a rotating support rod 1 and a support frame 4. Fixed columns 2 are connected to both sides of the rotating support rod 1. One end of the fixed column 2 is connected to the rotating support rod 1, and the other end is connected to a base 3. The base 3 is fixed on the support frame 4. The rotating support rod 1 is threadedly connected to the fixed column 2. By rotating the rotating support rod 1, the distance between the fixed columns 2 on both sides of the rotating support rod 1 can be adjusted, so as to achieve effective support for foundation pits of different widths.

[0015] It also includes a fixing hoop 5, and the end of the fixing column 2 connected to the rotating support rod 1 is semi-cylindrical. The semi-cylindrical fixing columns 2 on both sides of the rotating support rod 1 are symmetrically arranged. The fixing hoop 5 and the inner surface of the fixing column 2 are threaded. The fixing column 2, the fixing hoop 5 and the rotating support rod 1 are all made of high-strength steel and have a deeper thread depth to prevent parallel sliding between the rotating support rod 1 and the fixing column 2.

[0016] It should be noted that the thread direction at both ends of the rotating support rod 1 and the thread direction inside the fixed columns 2 on both sides are symmetrically set. The thread direction on the inner surface of the fixing hoop 5 is the same as and matches the thread direction on the inner surface of the corresponding fixed column 2. When the rotating support rod 1 rotates, the support frames 4 on both sides move closer to or further away from the rotating support rod 1 at the same time.

[0017] Reference Appendix Figure 1-2 The outer surface of the fixed column 2 is provided with a fixing block 6, which abuts against the fixing hoop 5. The upper and lower sides of the fixing block 6 and the fixing hoop 5 are provided with fixing holes 7 that are perpendicular to and concentric with the axis of the fixed column 2. A drive ring 8 is fixed at the center of the fixed column 2. The outer surface of the drive ring 8 is provided with a drive component. The worker can rotate the rotating support rod 1 by rotating the drive ring 8 to achieve adjustment.

[0018] This utility model discloses a foundation pit support frame, which features a separate, non-integrated rotating support rod between the support frames on both sides. The support frame is first placed against the inner walls of both sides of the foundation pit, then the rotating support rod is pressed against the inner wall of the fixed column and a fixing hoop is installed. The rotating support rod is then rotated, causing the support frame to move away from the rotating support rod, thus enabling the support frame to provide support for the inner walls of the foundation pit. Because the rotating support rod is set separately, the support frames on both sides can be placed one by one, resulting in higher efficiency during construction.

[0019] 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 variations 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 frame, characterized in that: It includes a rotating support rod (1) and a support frame (4). The rotating support rod (1) is connected to fixed columns (2) on both sides. One end of the fixed column (2) is connected to the rotating support rod (1), and the other end is connected to a base (3). The base (3) is fixed on the support frame (4). The rotating support rod (1) is threadedly connected to the fixed column (2).

2. The foundation pit support frame according to claim 1, characterized in that: It also includes a fixing hoop (5), one end of the fixing column (2) connected to the rotating support rod (1) is semi-cylindrical, and the semi-cylindrical shapes of the fixing columns (2) on both sides of the rotating support rod (1) are symmetrically arranged, and the inner surfaces of the fixing hoop (5) and the fixing column (2) are threaded.

3. The foundation pit support frame according to claim 2, characterized in that: The thread directions at both ends of the rotating support rod (1) and the thread directions inside the fixed columns (2) on both sides are symmetrically arranged. The thread direction on the inner surface of the fixing hoop (5) is the same as and matches the thread direction on the inner surface of the corresponding fixed column (2).

4. A foundation pit support frame according to claim 2, characterized in that: The outer surface of the fixed column (2) is provided with a fixed block (6), the fixed block (6) and the fixed hoop (5) abut against each other, and the upper and lower sides of the fixed block (6) and the fixed hoop (5) are provided with fixed holes (7) that are perpendicular to and concentric with the axis of the fixed column (2).

5. A foundation pit support frame according to claim 1, characterized in that: A drive ring (8) is fixed at the center of the fixed column (2), and a drive element is provided on the outer surface of the drive ring (8).

Images