Foundation pit enclosing purlin supporting device

Abstract

The utility model discloses a foundation pit enclosing purlin supporting device, which belongs to the technical field of foundation pit supporting devices, and comprises a plurality of steel sheet piles and steel enclosing purlins, the steel sheet piles are propped against the inner circumferential side of a foundation pit, and the steel enclosing purlins are fixedly connected to the surfaces, far away from the inner side of the foundation pit, of the steel sheet piles; the supporting structure comprises a fixing column, rotating rings, connecting columns, a supporting column and a fixing head, the fixing column is coaxially and rotationally connected with the multiple rotating rings, and the multiple rotating rings are fixedly connected with the connecting columns. According to the supporting structure, the connecting columns and the supporting columns which are used for supporting the steel enclosing purlins are centrally arranged on the fixing columns, overall hoisting of the supporting structure is facilitated, the installation burden of workers on the supporting structure is reduced, the good supporting effect can be achieved on the steel enclosing purlins with different angles, and the supporting capacity of foundation pits with different shapes is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of foundation pit supporting devices, in particular to a foundation pit surrounding purlin supporting device. Background Art

[0002] Foundation pit support measures are important measures to protect the foundation pit and the earthwork near the foundation pit. When supporting the foundation pit, welding is usually used to fix the steel sheet piles, steel purlins and steel support structures. However, the steel support structure cannot adjust its own length and has poor adaptability to foundation pits of different sizes.

[0003] Chinese utility model application number CN202320500564.6 discloses a foundation pit support structure, which supports and tightens the steel purlins on both sides of the foundation pit through multiple retractable steel support structures to achieve support for the side walls of the foundation pit. In this method, multiple steel support mechanisms are independent, and repeated lifting and installation are required during the installation and disassembly process, which increases the installation burden of the support structure on the workers. Utility Model Content

[0004] The utility model aims to provide a foundation pit purlin support device to solve the problem in traditional technology that multiple steel support structures need to be repeatedly lifted and installed independently during installation and disassembly, which increases the installation burden of the support structures on the workers.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A foundation pit purlin support device, comprising:

[0007] Steel sheet piles and steel perimeter purlins, wherein a plurality of the steel sheet piles are against the inner peripheral side of the foundation pit, and a plurality of the steel sheet piles are fixedly connected to the steel perimeter purlins on one side away from the inner side of the foundation pit;

[0008] A supporting structure, the supporting structure includes a fixed column, a rotating ring, a connecting column, a supporting column and a fixed head, the fixed column is coaxially rotatably connected with a plurality of rotating rings, the plurality of rotating rings are fixedly connected with a connecting column, a thread groove is coaxially provided at one end of the connecting column away from the rotating ring, the supporting column is threadedly connected in the thread groove, a rotating handle is fixedly connected to the supporting column, the supporting column is threadedly connected with a fixed head at one end away from the connecting column, wherein a side of the fixed head away from the supporting column abuts against a side of the steel purlin away from the steel sheet pile.

[0009] Preferably, the bottom of the fixed column is fixedly connected to a fixed base, and the fixed base rests against the bottom of the foundation pit.

[0010] Preferably, the outer circumference of the support column is provided with the same external thread, wherein the support column is threadedly connected with the thread groove and the fixing head through the external thread.

[0011] Preferably, a plurality of limiting structures are connected to the fixed column, and the plurality of limiting structures correspond one-to-one to the plurality of supporting structures. The limiting structure includes a sliding ring and a limiting bolt. The sliding ring is coaxially slidably connected to the fixed column, and a plurality of connecting holes are provided on the sliding ring. A limiting hole is provided on the connecting column, and the corresponding connecting holes and limiting holes are connected with the same limiting bolt.

[0012] Preferably, the plurality of sliding rings are located at the tops of the plurality of rotating rings in a one-to-one corresponding gap, and the plurality of connecting holes are distributed on the sliding rings in a circular array.

[0013] Preferably, the limiting bolt is threadedly connected to the connecting hole, and the limiting bolt is snap-fitted with the limiting hole.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. In the utility model, by setting a supporting structure, the connecting columns and supporting columns for supporting the steel purlins are concentrated on the fixed columns, which is convenient for the overall lifting of the supporting structure, reduces the installation burden of the supporting structure on the workers, and can form a good supporting effect for steel purlins of different angles, thereby improving the supporting capacity for foundation pits of different shapes.

[0016] 2. In the utility model, by setting support columns, connecting columns and fixed heads that are threadedly connected to each other, when adjacent support structures are connected, the support columns in the connecting columns on the upper parts of the two fixed columns and the fixed heads on the support columns can be removed, so that the two parts of the connecting columns can be linked together by rotating the support columns, thereby connecting adjacent support structures together, which is convenient for completing the support requirements for non-standard foundation pits. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a vertical cross-sectional structural schematic diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the support structure of the utility model;

[0020] Figure 4 It is a schematic diagram of the sliding ring of the utility model.

[0021] In the figure: 1 steel sheet pile, 2 steel purlin, 3 fixed column, 4 fixed base, 5 rotating ring, 6 connecting column, 7 thread groove, 8 supporting column, 81 external thread, 9 rotating handle, 10 fixed head, 11 sliding ring, 12 connecting hole, 13 limiting hole, 14 limiting bolt. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-Figure 4 , a foundation pit purlin support device, comprising:

[0024] Steel sheet piles 1 and steel perimeter purlins 2, a plurality of steel sheet piles 1 are against the inner peripheral side of the foundation pit, and a plurality of steel sheet piles 1 are fixedly connected with the steel perimeter purlins 2 on one side away from the inner side of the foundation pit.

[0025] The supporting structure includes a fixed column 3, a rotating ring 5, a connecting column 6, a supporting column 8 and a fixed head 10. A plurality of rotating rings 5 ​​are coaxially rotatably connected to the fixed column 3. The plurality of rotating rings 5 ​​are fixedly connected to the connecting column 6. A threaded groove 7 is coaxially provided at one end of the connecting column 6 away from the rotating ring 5. The supporting column 8 is threadedly connected to the threaded groove 7. A rotating handle 9 is fixedly connected to the supporting column 8. A fixed head 10 is threadedly connected to one end of the supporting column 8 away from the connecting column 6, wherein the side of the fixed head 10 away from the supporting column 8 abuts against the side of the steel purlin 2 away from the steel sheet pile 1.

[0026] The bottom of the fixed column 3 is fixedly connected with a fixed base 4 , which abuts against the bottom of the foundation pit, so that the stability of the fixed column 3 is improved by the fixed base 4 .

[0027] The support column 8 is provided with the same external thread 81 on its outer peripheral side, wherein the support column 8 is threadedly connected to the thread groove 7 and the fixing head 10 through the external thread 81. The use of the same external thread 81 makes it convenient for the support column 8 to be connected to the connecting column 6 from both ends, thereby facilitating the subsequent connection of adjacent supporting structures.

[0028] A plurality of limiting structures are connected to the fixed column 3, and the plurality of limiting structures correspond one to one with the plurality of supporting structures. The limiting structures include a sliding ring 11 and a limiting bolt 14. The sliding ring 11 is coaxially slidingly connected to the fixed column 3. A plurality of connecting holes 12 are provided on the sliding ring 11. A limiting hole 13 is provided on the connecting column 6, wherein the corresponding connecting holes 12 and the limiting holes 13 are connected with the same limiting bolt 14.

[0029] The plurality of sliding rings 11 are located at the tops of the plurality of rotating rings 5 ​​in a one-to-one corresponding gap, and the plurality of connecting holes 12 are distributed on the sliding rings 11 in a circular array, so as to form a limiting effect for the connecting columns 6 adjusted to different directions.

[0030] The limiting bolt 14 is threadedly connected to the connecting hole 12, and the limiting bolt 14 is snap-fitted with the limiting hole 13. The threaded connection between the limiting bolt 14 and the connecting hole 12 allows the limiting bolt 14 to be installed in the connecting hole 12 before use, effectively preventing the limiting bolt 14 from being lost.

[0031] The operating principle of the utility model is now described as follows:

[0032] When supporting the foundation pit, the steel sheet pile 1 is pressed against the side wall of the foundation pit, and then the steel surrounding purlin 2 is fixedly connected to the steel sheet pile 1. At this time, the fixing column 3 can be hoisted into the foundation pit, and the fixing base 4 can be fixed to the bottom of the foundation pit. After the lifting of the fixing column 3 is completed, by adjusting the angles of multiple connecting columns 6, the connecting column 6 drives the rotating ring 5 to rotate on the fixing column 3, and finally the supporting column 8 on the connecting column 6 is made to face the steel surrounding purlin 2. By rotating the rotating handle 9 on the supporting column 8, the supporting column 8 can be spirally moved out of the thread groove 7 in the connecting column 6, so that the supporting column 8 drives the fixing head 10 to press against the steel surrounding purlin 2, thereby forming a supporting effect on the steel surrounding purlin 2, thereby forming a comprehensive supporting effect on the steel surrounding purlin 2 on the inner peripheral side of the foundation pit through the supporting columns 8 in different directions;

[0033] After the angle adjustment of the connecting column 6 is completed, the limiting bolt 14 on the sliding ring 11 is rotated so that the limiting bolt 14 is inserted into the limiting hole 13 on the connecting column 6, thereby improving the stability of the connecting column 6 and the stability of the supporting structure;

[0034] At the same time, when supporting foundation pits of different specifications, multiple support structures can be used. When adjacent support structures are connected, the fixed head 10 of the support column 8 in the partial connecting column 6 on a fixed column 3 can be reversed and removed. At this time, the support column 8 can be reversed to temporarily retract it into the thread groove 7, and the support column 8 in the corresponding partial connecting column 6 on the other fixed column 3 can be reversed and removed. The two parts of the connecting column 6 are aligned, and the two parts of the connecting column 6 can be linked together by rotating the support column 8, thereby connecting adjacent support structures together, which is convenient for completing the support requirements for non-standard foundation pits.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A foundation pit purlin support device, characterized in that: include: Steel sheet piles (1) and steel purlins (2), wherein a plurality of the steel sheet piles (1) are placed against the inner circumference of the foundation pit, and a plurality of the steel sheet piles (1) are fixedly connected to the steel purlins (2) on a side away from the inner side of the foundation pit; A support structure, the support structure comprising a fixed column (3), a rotating ring (5), a connecting column (6), a support column (8) and a fixed head (10), wherein the fixed column (3) is coaxially rotatably connected to a plurality of rotating rings (5), each of the plurality of rotating rings (5) is fixedly connected to a connecting column (6), a thread groove (7) is coaxially provided at one end of the connecting column (6) away from the rotating ring (5), the supporting column (8) is threadedly connected in the thread groove (7), a rotating handle (9) is fixedly connected to the support column (8), and the fixed head (10) is threadedly connected to one end of the support column (8) away from the connecting column (6), wherein the side of the fixed head (10) away from the support column (8) abuts against the side of the steel purlin (2) away from the steel sheet pile (1).

2. A foundation pit purlin support device according to claim 1, characterized in that: in: The bottom of the fixed column (3) is fixedly connected to a fixed base (4), and the fixed base (4) rests against the bottom of the foundation pit.

3. A foundation pit purlin support device according to claim 1, characterized in that: in: The outer circumference of the support column (8) is provided with a same external thread (81), wherein the support column (8) is threadedly connected to the thread groove (7) and the fixing head (10) via the external thread (81).

4. A foundation pit purlin support device according to claim 1, characterized in that: in: The fixing column (3) is connected to a plurality of limiting structures, and the plurality of limiting structures correspond one to one with the plurality of supporting structures. The limiting structures include a sliding ring (11) and a limiting bolt (14). The sliding ring (11) is coaxially slidably connected to the fixing column (3). The sliding ring (11) is provided with a plurality of connecting holes (12). The connecting column (6) is provided with a limiting hole (13), wherein corresponding connecting holes (12) and limiting holes (13) are connected with the same limiting bolt (14).

5. A foundation pit purlin support device according to claim 4, characterized in that: in: The plurality of sliding rings (11) are located at the tops of the plurality of rotating rings (5) in a one-to-one corresponding gap, and the plurality of connecting holes (12) are distributed on the sliding rings (11) in a circular array.

6. A foundation pit purlin support device according to claim 4, characterized in that: in: The limiting bolt (14) is threadedly connected to the connecting hole (12), and the limiting bolt (14) is snap-fitted to the limiting hole (13).

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