Large foundation pit prestressed steel pipe diagonal bracing structure

Abstract

The utility model relates to the technical field of steel pipe diagonal bracing structures, in particular to a large foundation pit prestressed steel pipe diagonal bracing structure which comprises a mounting table, a steel pipe body and a fastening box are arranged on the mounting table, the steel pipe body is obliquely arranged, a mounting mechanism is arranged at the top end of the steel pipe body, an adjusting groove is formed in the fastening box, and the steel pipe body is arranged in the adjusting groove. An adjusting hole is formed between the adjusting groove and the top end of the fastening box, an adjusting shaft is arranged on the adjusting hole, a first gear is arranged on the adjusting shaft, bevel teeth are arranged at the bottom end of the adjusting shaft, a fixing block is arranged at the bottom end of the adjusting groove, a tooth groove is formed in the top end of the fixing block, and the bevel teeth abut against the bevel teeth in a meshed mode. According to the structure, the spiral nails of the two threaded columns are screwed into soil by rotating the adjusting shaft, rapid positioning and fixing are achieved, and then the steel pipe body on the mounting table is used for facilitating diagonal bracing use.

Description

Technical Field

[0001] This utility model relates to the technical field of steel pipe bracing structures, specifically a prestressed steel pipe bracing structure for large foundation pits. Background Technology

[0002] As is well known, ensuring the safety and stability of foundation pits is crucial in construction projects, especially those involving deep foundation pit excavation. During deep foundation pit excavation, factors such as earth pressure and changes in groundwater levels can cause displacement or even collapse of the soil surrounding the pit, posing a serious threat to the safety of surrounding buildings. Therefore, effective support measures must be taken before or during excavation to ensure the safety of the foundation pit and its surrounding environment. Steel pipes are widely used as support components due to their good rigidity and load-bearing capacity. However, traditional steel pipe supports often require welding or other forms of fixing, which limits their flexibility and installation speed to some extent. Therefore, it is necessary to propose solutions to this technical problem. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a prestressed steel pipe diagonal bracing structure for large foundation pits.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a prestressed steel pipe diagonal bracing structure for large foundation pits, comprising an installation platform, a steel pipe body and a fastening box on the installation platform, the steel pipe body being inclined, an installation mechanism at the top of the steel pipe body, an adjustment groove inside the fastening box, an adjustment hole between the adjustment groove and the top of the fastening box, an adjustment shaft on the adjustment hole, a first gear on the adjustment shaft, a bevel tooth at the bottom of the adjustment shaft, a fixing block at the bottom of the adjustment groove, a toothed groove at the top of the fixing block, the bevel tooth meshing against the bevel tooth, a threaded hole at the bottom of the installation platform, a limit groove between the threaded hole and the adjustment groove, a threaded post on the threaded hole, a spiral nail at the bottom of the threaded post, a rectangular groove at the top of the threaded post, a rectangular post on the rectangular groove, a second gear at the top of the rectangular post, a bearing seat between the second gear and the top of the adjustment groove, the second gear meshing against the first gear, and two threaded holes symmetrically arranged.

[0007] Furthermore, the present invention is improved in that the installation mechanism includes an installation plate, which is installed at one end of the steel pipe body, and the installation plate has multiple installation holes.

[0008] Furthermore, the present invention is improved by providing a limiting ring at the top of the threaded column.

[0009] Furthermore, the present invention is improved by providing a sealing ring at the bottom end of the limiting ring.

[0010] Furthermore, the present invention is improved in that the bevel teeth are made of iron and the fixing block is a magnet.

[0011] Furthermore, the present invention is improved in that both the rectangular column and the rectangular groove are hexagonal structures.

[0012] Furthermore, the present invention is improved by providing a handle at the top of the adjusting shaft.

[0013] Furthermore, the present invention is improved by providing anti-slip strips on the outer side of the handle, wherein multiple anti-slip strips are provided and arranged in a circular array.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a prestressed steel pipe diagonal bracing structure for large foundation pits, which has the following beneficial effects:

[0016] This large-scale prestressed steel pipe diagonal bracing structure for foundation pits allows users to quickly fix the mounting platform in the foundation pit soil through the cooperation between the adjusting shaft, conical teeth, and fixing holes, as well as the design of the threaded column and helical nail. The specific process is as follows: first, rotate the adjusting shaft to disengage the conical teeth from the fixing holes, and then drive the threaded column to rotate through the gear transmission mechanism, causing the helical nail to screw into the soil, achieving rapid positioning and fixation. When disassembly is required, simply rotate the adjusting shaft in the opposite direction to disengage the conical teeth from the fixing holes, and then rotate the threaded column in the opposite direction to pull the helical nail out of the soil. This design greatly simplifies the disassembly process, saving time and manpower. The use of two symmetrically arranged threaded columns and helical nails can provide stable support in multiple directions, avoiding tilting or slippage caused by single-point force. The conical teeth cooperation between the adjusting shaft and the fixing holes ensures that the mounting platform will not loosen due to external forces during use, guaranteeing the long-term stability of the diagonal bracing structure. Attached Figure Description

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

[0018] Figure 2 This is a schematic diagram of the structure of the present utility model. Figure 2 ;

[0019] Figure 3 This utility model Figure 1 Enlarged left half-sectional view of the central fastening box;

[0020] Figure 4 This is a top half-sectional view of the structure of this utility model.

[0021] In the diagram: 1. Mounting platform; 2. Steel pipe body; 3. Fastening box; 4. Adjusting shaft; 5. First gear; 6. Bevel gear; 7. Fixing block; 8. Threaded column; 9. Spiral nail; 10. Rectangular column; 11. Second gear; 12. Bearing seat; 13. Mounting plate; 14. Mounting hole; 15. Limiting ring; 16. Handle. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-4This utility model relates to a large-scale prestressed steel pipe diagonal bracing structure for foundation pits, comprising an installation platform 1, on which a steel pipe body 2 and a fastening box 3 are mounted. The steel pipe body 2 is inclined, and an installation mechanism is provided at the top of the steel pipe body 2. An adjustment groove is provided inside the fastening box 3, and an adjustment hole is provided between the adjustment groove and the top of the fastening box 3. An adjustment shaft 4 is provided on the adjustment hole, and a first gear 5 is provided on the adjustment shaft 4. A bevel tooth 6 is provided at the bottom end of the adjustment shaft 4, and a fixing block 7 is provided at the bottom end of the adjustment groove. A toothed groove is provided at the top of the fixing block 7, and the bevel tooth 6 meshes with and abuts against the bevel tooth 6. The bottom end of platform 1 has a threaded hole, and a limit groove is formed between the threaded hole and the adjustment groove. A threaded post 8 is provided on the threaded hole, and a spiral nail 9 is provided at the bottom end of the threaded post 8. A rectangular groove is provided at the top end of the threaded post 8, and a rectangular post 10 is provided on the rectangular groove. A second gear 11 is provided at the top end of the rectangular post 10. A bearing seat 12 is provided between the second gear 11 and the top end of the adjustment groove. The second gear 11 meshes with and abuts against the first gear 5. There are two threaded holes arranged symmetrically. In this embodiment, the operator places platform 1 at a designated position in the foundation pit scenario, and then adjusts it by lifting the adjustment shaft 4. The bevel tooth 6 at the bottom of shaft 4 leaves the tooth groove of the fixing hole, and then the adjusting shaft 4 is rotated. The adjusting shaft 4 drives the first gear 5 to rotate. The first gear 5 is connected to the second gear 11 on two symmetrically arranged rectangular columns 10 through meshing. The first gear 5 can drive the two second gears 11 to rotate by an angle. The second gears 11 drive the rectangular column 10 to rotate. Since the rectangular column 10 is located in the rectangular groove of the threaded column 8, the rectangular column 10 can drive the threaded column 8 to rotate. The threaded column 8 rotates and moves downward in the threaded hole, thereby causing the spiral nail 9 to rotate and insert into the ground. Through the spiral nail 9 of the two threaded columns 8, the mounting platform 1 can be firmly mounted on the soil ground. By using the installation mechanism, one end of the steel pipe body 2 is fixed to the object requiring diagonal support, thereby enabling the structure to achieve a stable and reliable diagonal support effect. By pressing down on the adjusting shaft 4, the conical teeth 6 engage with the conical teeth 6 in the fixing hole, thus fixing the adjusting shaft 4 in place and preventing any angular loosening. This ensures the stability of the two spiral nails 9 and allows the mounting platform 1 to be quickly and securely assembled in the foundation pit soil scene, facilitating rapid assembly and use of this diagonal support mechanism. When it is necessary to remove this structure, disassemble the installation mechanism, then lift the adjusting shaft 4, and then rotate the adjusting shaft 4 in the opposite direction and lift the structure to allow the spiral nails 9 to extend out of the soil for easy removal.

[0024] In this solution, the installation mechanism includes an installation plate 13, which is installed at one end of the steel pipe body 2. The installation plate 13 has multiple installation holes 14, which facilitate the use of bolts and other components to install and fix the object requiring diagonal bracing.

[0025] In this design, a limiting ring 15 is provided at the top of the threaded post 8. Rotating the threaded post 8 causes the limiting ring 15 to move into the limiting groove, thereby limiting the threaded post 8.

[0026] In this design, a sealing ring is provided at the bottom of the limiting ring 15. The sealing ring can improve the sealing performance of the limiting ring 15 in the limiting groove and prevent foreign objects from seeping into the adjusting groove through the gap between the threaded hole and the threaded post 8.

[0027] In this scheme, the bevel tooth 6 is made of iron, and the fixing block 7 is a magnet. By attracting the iron bevel tooth 6 with the magnet fixing block 7, the bevel tooth 6 of the adjusting shaft 4 can be stably engaged against the tooth groove of the fixing block 7.

[0028] In this solution, both the rectangular column 10 and the rectangular groove are hexagonal structures. Through the hexagonal rectangular column 10 and the rectangular groove, the rectangular column 10 can reliably drive the threaded column 8 to rotate.

[0029] In this design, the top of the adjusting shaft 4 is provided with a handle 16, which allows personnel to easily turn the adjusting shaft 4 by holding the handle 16.

[0030] In this solution, the outer side of the handle 16 is provided with anti-slip strips. Multiple anti-slip strips are arranged in a circular array. By providing multiple anti-slip strips arranged in a circular array on the handle 16, the anti-slip properties of the handle 16 can be improved, making it easier for people to hold the handle 16 stably.

[0031] 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 prestressed steel pipe diagonal bracing structure for large foundation pits, comprising an installation platform (1), characterized in that, The mounting platform (1) is provided with a steel pipe body (2) and a fastening box (3). The steel pipe body (2) is inclined and has an installation mechanism at its top. An adjustment groove is provided inside the fastening box (3). An adjustment hole is provided between the adjustment groove and the top of the fastening box (3). An adjustment shaft (4) is provided on the adjustment hole. A first gear (5) is provided on the adjustment shaft (4). A bevel tooth (6) is provided at the bottom end of the adjustment shaft (4). A fixing block (7) is provided at the bottom end of the adjustment groove. A tooth groove is provided at the top of the fixing block (7). The bevel tooth (6) meshes with the bevel tooth. (6) The bottom end of the mounting platform (1) is provided with a threaded hole, and a limit groove is provided between the threaded hole and the adjustment groove. The threaded hole is provided with a threaded post (8), the bottom end of the threaded post (8) is provided with a spiral nail (9), the top end of the threaded post (8) is provided with a rectangular groove, the rectangular groove is provided with a rectangular post (10), the top end of the rectangular post (10) is provided with a second gear (11), the second gear (11) is provided with a bearing seat (12) between the second gear (11) and the top end of the adjustment groove, the second gear (11) meshes against the first gear (5), and the threaded hole is provided in two symmetrical arrangements.

2. The prestressed steel pipe bracing structure for a large foundation pit according to claim 1, characterized in that, The installation mechanism includes an installation plate (13), which is installed at one end of the steel pipe body (2). The installation plate (13) has multiple installation holes (14).

3. A prestressed steel pipe bracing structure for a large foundation pit according to claim 2, characterized in that, The top of the threaded column (8) is provided with a limiting ring (15).

4. A prestressed steel pipe bracing structure for a large foundation pit according to claim 3, characterized in that, The bottom end of the limiting ring (15) is provided with a sealing ring.

5. A prestressed steel pipe bracing structure for a large foundation pit according to claim 4, characterized in that, The bevel teeth (6) are made of iron, and the fixing block (7) is a magnet.

6. A prestressed steel pipe bracing structure for a large foundation pit according to claim 5, characterized in that, Both the rectangular column (10) and the rectangular groove are hexagonal structures.

7. A prestressed steel pipe bracing structure for a large foundation pit according to claim 6, characterized in that, The top of the adjusting shaft (4) is provided with a handle (16).

8. A prestressed steel pipe bracing structure for a large foundation pit according to claim 7, characterized in that, The handle (16) is provided with anti-slip strips on the outside, and multiple anti-slip strips are arranged in a circular array.

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