Foundation pit top plate periphery protection device under supporting beam

Abstract

The utility model belongs to the field of foundation pit construction, and particularly relates to a foundation pit top plate periphery protection device under a supporting beam, which comprises a plurality of inverted U-shaped hanging rods, and a plurality of connecting holes are uniformly formed in the lower parts of long vertical rods of the inverted U-shaped hanging rods; the clothes hanger further comprises a plurality of triangular supports corresponding to the inverted-U-shaped hanging rods, and vertical supporting rods of the triangular supports are fixedly connected with the long vertical rods. Horizontal rods are fixed in the middles of the vertical supporting rods, and the adjacent horizontal rods abut against each other; fixing pieces are symmetrically arranged on the lower parts of the long vertical rods and the left and right sides of the bottoms of the vertical supporting rods; four corners of the protective net are fixed on the fixing pieces. The protection device is suitable for protecting the periphery of the foundation pit top plate below the supporting beam, an existing supporting beam structure is fully utilized for installation of the protection device, punching is not needed in the whole process, installation and disassembly are easy and fast, the construction efficiency is improved, and the labor amount of workers is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of foundation pit construction, and in particular relates to a protective device around the top slab of the foundation pit under the support beam. Background Technology

[0002] To ensure the stability of the soil around the foundation pit, crisscrossing support beams are typically used for temporary support during the excavation process. In addition to the support beams serving as the foundation pit's support structure, the top slab of the foundation pit is also part of the support structure. In some cases, the top slab of the foundation pit is located directly below the support beams, with a distance of approximately 2-4 meters between them. Currently, the protection around the top slab of the foundation pit located below the support beams is similar to that of conventional foundation pits, mostly using ordinary guardrails. Holes are drilled in the top slab of the foundation pit to install the base and vertical posts of the guardrails, and then the horizontal posts and protective netting are gradually assembled. This process not only requires drilling for fixation, which damages the structure of the top slab of the foundation pit, but also involves a complex and cumbersome installation process, slow construction, and troublesome dismantling later. Summary of the Invention

[0003] The problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a protective device for the perimeter of the foundation pit top slab under the support beam.

[0004] This invention is achieved through the following technical solution:

[0005] A protective device for the perimeter of the foundation pit top slab under a supporting beam includes several inverted U-shaped hanging rods, each consisting of a long vertical rod and a short vertical rod, with a horizontal rod integrally connected between them. The length of the horizontal rod is equal to the width of the supporting beam, and the length of the long vertical rod is greater than the thickness of the supporting beam. Several connecting holes are evenly distributed at the bottom of the long vertical rod. The device also includes several triangular brackets corresponding to the inverted U-shaped hanging rods. The vertical support rods of the triangular brackets have fixing holes corresponding to the connecting holes. Connecting bolts passing through the connecting holes and fixing holes are used to fix the triangular brackets to the long vertical rods. An installation hole is provided in the middle of each vertical support rod. Fixing bolts passing through the installation hole are used to fix horizontal rods to the vertical support rods, with adjacent horizontal rods abutting against each other. Fixing members are symmetrically provided at the bottom of the long vertical rods and on the left and right sides of the bottom of the vertical support rods, and the four corners of the protective net are fixed to the fixing members.

[0006] Preferably, the fastener is a hook.

[0007] Preferably, the adjacent horizontal bars are fixed together by connecting pieces.

[0008] Preferably, the length of the short vertical rod is less than the thickness of the support beam and greater than half the thickness of the support beam.

[0009] Preferably, the length of the vertical support rod is 2-3m, and the length of the long vertical rod is 1.5-2m.

[0010] The protective device of this invention is suitable for the protection of the perimeter of the foundation pit top plate under the support beam. It makes full use of the existing support beam structure for the installation of the protective device. The whole process does not require drilling, and the installation and disassembly are simple and quick, which improves construction efficiency and reduces the workload of workers. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the installation structure in this embodiment;

[0012] Figure 2 for Figure 1 Another structural diagram;

[0013] Figure 3 This is a schematic diagram of the device assembly structure in this embodiment;

[0014] Figure 4 for Figure 3 Another structural diagram;

[0015] Figure 5 This is a partial structural diagram of this embodiment;

[0016] Figure 6 for Figure 5 Another structural diagram;

[0017] Figure 7 This is a schematic diagram of the structure without a protective net in this embodiment;

[0018] Figure 8 This is a schematic diagram of the disassembled structure of the inverted U-shaped hanging rod and the triangular bracket in this embodiment.

[0019] In the diagram, 1 is the pit top slab, 2 is the support beam, 3 is the inverted U-shaped hanging rod, 4 is the long vertical rod, 5 is the short vertical rod, 6 is the horizontal rod, 7 is the connecting hole, 8 is the triangular bracket, 9 is the vertical support rod, 10 is the fixing hole, 11 is the connecting bolt, 12 is the mounting hole, 13 is the fixing bolt, 14 is the horizontal rod, 15 is the protective net, 16 is the hook, and 17 is the connecting piece. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments.

[0021] This embodiment includes several inverted U-shaped hanging rods 3, which are used to hang on the support beam 2. Each inverted U-shaped hanging rod 3 includes a long vertical rod 4, a short vertical rod 5, and a horizontal rod 6. The long vertical rod 4 and the short vertical rod 5 are integrally connected to the horizontal rod 6. The length of the horizontal rod 6 is equal to the width of the support beam 2, and the length of the long vertical rod 4 is greater than the thickness of the support beam 2. After the inverted U-shaped hanging rod 3 is hung on the support beam 2, the long vertical rod 4 is located near the edge of the pit top slab 1. After hanging, the long vertical rod 4 extends downwards for connection with the triangular bracket 8. The short vertical rod 5 can be shorter; to ensure structural stability, it is preferable that the length of the short vertical rod 5 is less than the thickness of the support beam 2 but greater than half the thickness of the support beam 2. Specifically, the length of the vertical support rod 9 is preferably 2-3m, and the length of the long vertical rod 4 is 1.5-2m. Several connecting holes 7 are evenly provided at the lower part of the long vertical rod 4 for connection with the triangular bracket 8.

[0022] This embodiment also includes several triangular brackets 8 corresponding to the inverted U-shaped hanging rods 3. The triangular brackets 8 are placed on the top plate 1 of the foundation pit, and one triangular bracket 8 is fixed to each inverted U-shaped hanging rod 3. The vertical support rod 9 of the triangular bracket 8 is provided with several fixing holes 10 corresponding to the connecting holes 7. The triangular bracket 8 is fixedly connected to the long vertical rod 4 by connecting bolts 11 passing through the connecting holes 7 and fixing holes 10. A mounting hole 12 is provided in the middle of the vertical support rod 9. The horizontal rod 14 is fixed to the vertical support rod 9 by fixing bolts 13 passing through the mounting hole 12. The horizontal rod 14 is equivalent to the horizontal bar of the guardrail. Adjacent horizontal rods 14 directly abut together. To make the structure more stable, a connecting piece 17 can be provided at the abutment of adjacent horizontal rods 14. Adjacent horizontal rods 14 are fixed together by the connecting piece 17 and screws.

[0023] Fixing members are symmetrically provided on the lower part of the long vertical rod 4 and on the left and right sides of the bottom of the vertical support rod 9. The fixing members are used to fix the protective net 15, and the four corners of the protective net 15 are fixed to the fixing members. In this embodiment, the fixing members are hooks 16. The four corners of the protective net 15 can be hung on the corresponding hooks 16 at the four corners.

[0024] During construction, first hang the inverted U-shaped hanging rods 3 at intervals on the upper support beams 2 closest to the edge of the pit top slab 1. Then, fix the triangular brackets 8 to the inverted U-shaped hanging rods 3 and place the triangular brackets 8 on the pit top slab 1. Fix the horizontal rods 14 at the mounting holes 12 of the vertical support rods 9. The ends of adjacent horizontal rods 14 are joined together, and the connecting pieces 17 are used to connect the joined horizontal rods 14 together. Finally, hang the protective net 15 on the hooks 16.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; those skilled in the art should understand that modifications can still be made to the technical solutions described in the above embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A protective device for the perimeter of the foundation pit top slab under a supporting beam, characterized in that: It includes several inverted U-shaped hanging rods (3), each inverted U-shaped hanging rod (3) including a long vertical rod (4) and a short vertical rod (5), with a horizontal rod (6) integrally connected between the long vertical rod (4) and the short vertical rod (5). The length of the horizontal rod (6) is equal to the width of the support beam (2), and the length of the long vertical rod (4) is greater than the thickness of the support beam (2). Several connecting holes (7) are evenly provided at the lower part of the long vertical rod (4). It also includes several triangular brackets (8) corresponding to the inverted U-shaped hanging rods (3), and the vertical support rods (9) of the triangular brackets (8) are provided with fixings corresponding to the connecting holes (7). Hole (10), the triangular bracket (8) is fixedly connected to the long vertical rod (4) by the connecting bolt (11) passing through the connecting hole (7) and the fixing hole (10); a mounting hole (12) is provided in the middle of the vertical support rod (9), and the horizontal rod (14) is fixed to the vertical support rod (9) by the fixing bolt (13) passing through the mounting hole (12), and the adjacent horizontal rods (14) abut together; fixing parts are symmetrically provided on the lower part of the long vertical rod (4) and the left and right sides of the bottom of the vertical support rod (9), and the four corners of the protective net (15) are fixed to the fixing parts.

2. The protective device around the top slab of the foundation pit under the supporting beam according to claim 1, characterized in that: The fastener is a hook (16).

3. The protective device around the top slab of the foundation pit under the supporting beam according to claim 1, characterized in that: The adjacent horizontal bars (14) are fixed together by connecting pieces (17).

4. The protective device around the top slab of the foundation pit under the supporting beam according to claim 1, characterized in that: The length of the short vertical rod (5) is less than the thickness of the support beam (2) and greater than half the thickness of the support beam (2).

5. The protective device around the top slab of the foundation pit under the supporting beam according to claim 1, characterized in that: The vertical support rod (9) is 2-3m long, and the long vertical rod (4) is 1.5-2m long.

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