Municipal construction foundation pit support structure

Abstract

The utility model relates to the technical field of municipal construction, and provides a municipal construction foundation pit enclosure structure which comprises two bases and a protective fence, supporting rods are fixedly connected to the upper surfaces of the two bases, clamping grooves are formed in the inner sides of the two supporting rods, and clamping blocks are clamped to the middles of the two clamping grooves. Bending assemblies are fixedly connected to the inner sides of the two clamping blocks, each bending assembly comprises two spring pipes and two sets of connecting pieces B, and one end of each connecting piece B is rotationally connected with a connecting piece A. The clamping grooves are bent by 180 degrees through the bending assemblies, so that the clamping grooves can be enclosed in a narrow space, and the clamping grooves are not prone to falling off. When the device is placed and applied to a narrow road, the spring pipe is bent to drive the connecting piece B and the connecting piece A to rotate in the rotating shaft, and the rotating amplitude ranges from 0 degree to 180 degrees, so that the installation space of the device is reduced, roads with different widths can be enclosed, and the device is suitable for large-scale popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal construction, in particular to a municipal construction foundation pit enclosure structure. Background Art

[0002] The foundation pit retaining system is a retaining structure installed outside the foundation pit during the construction of the foundation soil engineering. Among them, the foundation pit protection net is the most commonly used structure in the foundation pit retaining system. The foundation pit protection net is used to protect the surrounding area of ​​the foundation pit, which plays a very important role in ensuring the safety of underground structure construction and the surrounding environment of the foundation pit.

[0003] For example, the publication number CN215485145U discloses a retaining structure for municipal foundation pit construction, including a guardrail, wherein a column 1 and a column 2 are respectively arranged on both sides of the guardrail, the column 1 is located at one end of the guardrail away from the column 2, a steel mesh is arranged in the middle of the guardrail, and a fixing block 1 and a fixing block 2 are respectively arranged at both ends of both sides of the column 1 and the column 2, and a card slot is respectively arranged in the middle of both ends of both sides of the guardrail, and the fixing block 1 and the fixing block 2 are correspondingly connected to the card slot, and the middle of both sides of the guardrail is provided with a mounting hole, and a positioning rod connected to the fixing block 1 and the fixing block 2 is arranged on the mounting hole, and one end of the fixing block 1 and the fixing block 2 is provided with a limiting hole, and the positioning rod is inserted in the middle of the limiting hole. Beneficial effect: It makes installation quick and convenient, and only needs to be quickly inserted and connected, avoiding the installation of multiple bolts and nuts one by one, improving the convenience of installation and increasing practicality.

[0004] However, in the prior art, when fencing a narrow municipal foundation pit, the angle of a conventional fencing device cannot be adjusted, so that construction work cannot be carried out on a narrow road, and the practicability of the device is limited to a certain extent. Utility Model Content

[0005] The utility model aims to solve the problem that the angle of the conventional enclosure device in the prior art cannot be adjusted, thereby making it impossible to carry out construction work on narrow roads.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a municipal construction foundation pit retaining structure, including two bases and guardrails, the upper surfaces of the two bases are fixedly connected with support rods, the inner sides of the two support rods are provided with card grooves, the middle parts of the two card grooves are clamped with card blocks, the inner sides of the two card blocks are fixedly connected with bending components, and the bending components include two groups of spring tubes and two groups of connecting parts B, one end of the connecting part B is rotatably connected with the connecting part A through a rotating shaft, and the spring tube and the end of the connecting part A away from the connecting part B are fixedly connected with a mounting plate, and the two sides of the middle part of the two bases are symmetrically threaded with positioning components.

[0007] As a preferred embodiment, the inner cavities of the two clamping blocks are each provided with a through hole B, a fixing plate is placed on the upper surface of the support rod, a pull rod is fixedly connected to the upper surface of the fixing plate, an insertion rod B is fixedly connected to the lower surface of the fixing plate, and the insertion rod B is inserted into the clamping slot and slidably engaged with the through hole B.

[0008] As a preferred implementation, the outer sides of the two mounting plates are symmetrically fixedly connected with equidistantly arranged fixing blocks, and a through hole A is opened at the axis of the fixing block.

[0009] As a preferred embodiment, the guardrail is symmetrically provided with equidistantly arranged plug holes A, the upper surface of the guardrail is symmetrically plugged with plug rods A, and the plug rods A and the through holes A are plugged.

[0010] As a preferred implementation, the positioning assembly comprises a threaded rod, a top end of the threaded rod is fixedly connected to a rotating block, and a bottom end of the threaded rod is fixedly connected to a friction block.

[0011] As a preferred embodiment, universal wheels are rotatably connected at the axes of the lower surfaces of the two bases.

[0012] As a preferred implementation, the guardrail is made of PVC material.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. The utility model adopts a bending component to bend the card slot 7 180 degrees, so that it can be enclosed in a narrow space. When placed on a narrow road, the spring tube is bent to drive the connector B and the connector A to rotate in the shaft, and the rotation range is within the range of 0 to 180 degrees, thereby reducing the installation space of the device, and can be used to enclose roads of different widths, which is suitable for large-scale promotion.

[0015] 2. The utility model adopts a positioning component to position the device behind the enclosure to avoid dislocation of the device. After the enclosure device is assembled and placed, the rotating block is turned to drive the threaded rod to rotate in the base and move up and down. The threaded rod drives the friction block to resist the ground for positioning, thereby avoiding dislocation of the device and improving the stability and safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the overall structure of a municipal construction foundation pit retaining structure provided by the utility model;

[0017] Figure 2 A schematic diagram of a three-dimensional explosion structure of a municipal construction foundation pit retaining structure provided by the utility model;

[0018] Figure 3 A schematic diagram of the side structure of a municipal construction foundation pit retaining structure provided by the utility model;

[0019] Figure 4 A municipal construction foundation pit retaining structure provided by the utility model Figure 2 A schematic diagram of the enlarged structure in the middle.

[0020] Legend:

[0021] 1. Base; 2. Support rod; 3. Universal wheel; 4. Threaded rod; 5. Rotating block; 6. Friction block; 7. Slot; 8. Block; 9. Spring tube; 10. Connector A; 11. Rotating shaft; 12. Connector B; 13. Mounting plate; 14. Fixed block; 15. Through hole A; 16. Guardrail; 17. Plug hole A; 18. Plug rod A; 19. Through hole B; 20. Fixed plate; 21. Pull rod; 22. Plug rod B. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides a technical solution: a municipal construction foundation pit enclosure structure, including two bases 1 and a guardrail 16, the upper surfaces of the two bases 1 are fixedly connected with support rods 2, the inner sides of the two support rods 2 are provided with card slots 7, the middle parts of the two card slots 7 are clamped with card blocks 8, the inner sides of the two card blocks 8 are fixedly connected with bending components, and the bending components include two groups of spring tubes 9 and two groups of connecting parts B12, one end of the connecting part B12 is rotatably connected with the connecting part A10 through the rotating shaft 11, and the ends of the spring tube 9 and the connecting part A10 away from the connecting part B12 are fixedly connected with the mounting plate 13, the two sides of the middle part of the two bases 1 are symmetrically threaded with positioning components, the spring tube 9 is bent to drive the connecting parts B12 and the connecting parts A10 to rotate in the rotating shaft 11, and the rotation amplitude is in the range of 0 to 180 degrees, thereby reducing the installation space of the device, and can be used to fence roads of different widths, with a wider range of applications.

[0024] like Figure 1-4As shown, the inner cavities of the two clamping blocks 8 are both provided with a through hole B19, a fixing plate 20 is placed on the upper surface of the support rod 2, a pull rod 21 is fixedly connected to the upper surface of the fixing plate 20, an insertion rod B22 is fixedly connected to the lower surface of the fixing plate 20, and the insertion rod B22 is inserted through the clamping slot 7 and slidably engaged with the through hole B19. During assembly, hold the pull rod 21, and the pull rod 21 is inserted into the through hole B19 through the fixing plate 20 to limit the clamping block 8, thereby completing the fixation of the clamping block 8.

[0025] like Figure 1-4 As shown, the outer sides of the two mounting plates 13 are symmetrically fixedly connected with equidistantly arranged fixing blocks 14, a through hole A15 is opened at the axis of the fixing block 14, and equidistantly arranged plug holes A17 are symmetrically opened on both sides of the guardrail 16. The upper surface of the guardrail 16 is symmetrically plugged with plug rods A18, and the plug rods A18 and the through holes A15 are plugged together. The plug rods A18 are plugged into the through holes A15, so that the guardrail 16 and the mounting plate 13 are assembled and fixed, and the overall installation is more stable and convenient.

[0026] like Figure 1-4 As shown, the positioning assembly includes a threaded rod 4, the top end of the threaded rod 4 is fixedly connected to a rotating block 5, and the bottom end of the threaded rod 4 is fixedly connected to a friction block 6. Twisting the rotating block 5 drives the threaded rod 4 to rotate in the base 1 and move up and down, and the threaded rod 4 drives the friction block 6 to contact the ground for positioning, thereby avoiding misalignment of the device, supporting and limiting the device, and making the device as a whole safer and more stable.

[0027] like Figure 1-4 As shown, the axes of the lower surfaces of the two bases 1 are rotatably connected with universal wheels 3. Due to the design of the universal wheels 3, the entire device can be easily moved and is more convenient to use.

[0028] like Figure 1-4 As shown, the guardrail 16 is made of PVC material. PVC material is relatively cheap and has good durability, can withstand high pressure and high temperature, is not easily affected by chemical corrosion and wear, and thus has a long service life.

[0029] Working principle:

[0030] When in use, first insert the card block 8 into the card slot 7, hold and move the pull rod 21, the pull rod 21 drives the plug rod B22 to penetrate the base 1 and the through hole B19, so as to fix the support rod 2 and the card block 8, then insert the fixing block 14 into the plug hole A17, and insert the plug rod A18 into the through hole A15 to fix the mounting plate 13, so that the device can be tested as a whole, at this time, the device is moved to the designated area through the universal wheel 3, the rotating block 5 is turned to drive the threaded rod 4 to rotate in the base 1 and move up and down, and the threaded rod 4 drives the friction block 6 to contact with the ground The device can be positioned behind the enclosure to avoid misalignment of the device. When placed in a narrow road, the spring tube 9 is bent to drive the connector B12 and the connector A10 to rotate in the rotating shaft 11, and the rotation range is within the range of 0 to 180 degrees, thereby reducing the installation space of the device, so that it can be enclosed in a narrow space, reducing the installation space of the device, and can be used to enclose roads of different widths. It is suitable for large-scale promotion. At the same time, the utility model adopts a plug-in and card-connected installation method as a whole, and the overall loading and unloading and maintenance of the device are more convenient and efficient, and it is more convenient to use.

[0031] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A municipal construction foundation pit retaining structure, comprising two bases (1) and a guardrail (16), characterized in that: The upper surfaces of the two bases (1) are fixedly connected to support rods (2), the inner sides of the two support rods (2) are provided with slots (7), the middle parts of the two slots (7) are clamped with blocks (8), the inner sides of the two blocks (8) are fixedly connected with bending components, and the bending components include two groups of spring tubes (9) and two groups of connecting parts B (12), one end of the connecting part B (12) is rotatably connected to a connecting part A (10) through a rotating shaft (11), and the spring tube (9) and the end of the connecting part A (10) away from the connecting part B (12) are fixedly connected to a mounting plate (13), and the two sides of the middle parts of the two bases (1) are symmetrically threaded with positioning components.

2. A municipal construction foundation pit retaining structure according to claim 1, characterized in that; The inner cavities of the two clamping blocks (8) are each provided with a through hole B (19); a fixing plate (20) is placed on the upper surface of the support rod (2); a pull rod (21) is fixedly connected to the upper surface of the fixing plate (20); an insertion rod B (22) is fixedly connected to the lower surface of the fixing plate (20); and the insertion rod B (22) is inserted into the clamping slot (7) and slidably engaged with the through hole B (19).

3. A municipal construction foundation pit retaining structure according to claim 1, characterized in that: The outer sides of the two mounting plates (13) are symmetrically fixedly connected with equidistantly arranged fixing blocks (14), and a through hole A (15) is provided at the axis center of the fixing block (14).

4. A municipal construction foundation pit retaining structure according to claim 1, characterized in that: The two sides of the guardrail (16) are symmetrically provided with equidistantly arranged plug holes A (17), the upper surface of the guardrail (16) is symmetrically plugged with plug rods A (18), and the plug rods A (18) are plugged into the through holes A (15).

5. The municipal construction foundation pit retaining structure according to claim 1, characterized in that: The positioning assembly comprises a threaded rod (4), the top end of the threaded rod (4) is fixedly connected to a rotating block (5), and the bottom end of the threaded rod (4) is fixedly connected to a friction block (6).

6. A municipal construction foundation pit retaining structure according to claim 1, characterized in that: Universal wheels (3) are rotatably connected at the axis centers of the lower surfaces of the two bases (1).

7. A municipal construction foundation pit retaining structure according to claim 1, characterized in that: The guardrail (16) is made of PVC material.

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