Rotatable steel support articulated joint structure

Abstract

The utility model provides a kind of rotatable steel support articulated joint structure, including support assembly and connecting assembly, support assembly includes steel support connecting section and connecting lug, steel support connecting section one end is provided with multiple connecting lug, connecting assembly includes fixed lug and anchoring steel sheet, multiple fixed lugs are intervally set on anchoring steel sheet;Connecting lug is set between adjacent two fixed lugs, connecting lug and fixed lug are fixed by pin shaft component, support assembly and connecting assembly rotate around pin shaft component.The utility model all components can be pre-processed into shape in factory, can directly start installation after arriving at site, structure installation is simple, higher in strength, the accessory used is less, construction site neatness is high, reusability is high, both be conducive to labor safety protection, also reflect the concept of green construction;It can be applied to arbitrary included angle, greatly reduce on-site construction work quantity, and can guarantee steel support end surface vertical, stress reasonable, prefabricated assembly rate is high, quality stable controllable.

Description

Technical Field

[0001] This utility model relates to the field of municipal engineering technology, and in particular to a rotatable steel support hinge structure. Background Technology

[0002] Currently, foundation pit construction has become a very common scenario in urban construction, such as the excavation of basements for high-rise buildings, the excavation of municipal direct-buried pipelines, the excavation of underground integrated pipe corridors, and the excavation of bridge pier foundations. To ensure the safety of foundation pit excavation, retaining measures are required for foundation pits exceeding a certain depth. The most commonly used retaining system is the internal support structure. The main force transmission path of this system is: external soil and water pressure → retaining piles → capping beam / waler → support balance. Among these, the setting of the support is crucial. Steel supports, with their core advantages such as quick construction, green and low-carbon operation, recyclability, and controllable axial force, have become one of the mainstream support solutions for current foundation pit engineering. Generally, steel supports intersect perpendicularly with the walers. However, at foundation pit corners, irregularly shaped areas of the foundation pit, and inclined supports, the steel supports form a certain angle with the walers. In such cases, the dimensions of the support ends, anchor plates, stiffening ribs, etc., need to be cut according to the specific angle on site, which not only affects the construction period but also significantly reduces the recycling value of the steel components. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this utility model provides a rotatable steel support hinge structure, which is simple in structure, has reasonable stress distribution, is easy to install and disassemble, and can rotate around an axis to adapt to various angles.

[0004] The technical solution adopted in this utility model is: A rotatable steel support hinge structure includes a support assembly and a connecting assembly. The support assembly includes a steel support connecting section and connecting lugs. Multiple connecting lugs are spaced apart at one end of the steel support connecting section. The connecting assembly includes fixed lugs and anchoring steel plates. Multiple fixed lugs are spaced apart on the anchoring steel plates. The connecting lugs are disposed between two adjacent fixed lugs. The connecting lugs and fixed lugs are fixed by a pin assembly. The support assembly and the connecting assembly rotate around the pin assembly.

[0005] Preferably, in the rotatable steel support hinge structure, a first pin hole is provided on the connecting ear plate, and a second pin hole is provided on the fixing ear plate at the position corresponding to the first pin hole.

[0006] Preferably, in the rotatable steel support hinge structure, the pin assembly includes an anti-detachment pin and a pin, the first pin hole and the second pin hole correspond one-to-one and are connected by the pin and fixed by the anti-detachment pin, and the support assembly and the connecting assembly rotate around the pin.

[0007] Preferably, in the rotatable steel support hinge structure, the connecting assembly further includes stiffening ribs, and stiffening ribs are provided between the anchoring steel plate and the fixing ear plate.

[0008] Preferably, in the rotatable steel support hinge structure, the number of fixed ear plates is twice the number of connecting ear plates.

[0009] Advantages of this utility model: (1) The rotatable steel support hinge structure of this utility model can be pre-processed in the factory and can be directly installed after arriving at the site. The structure is easy to install, has high strength, uses few accessories, has a high level of cleanliness at the construction site, and has a high reuse rate. It is not only conducive to labor safety protection, but also reflects the concept of green construction.

[0010] (2) The rotatable steel support hinge structure of this utility model can be used at any angle, greatly reducing the amount of on-site construction work, and can ensure that the steel support end face is vertical, the force is reasonable, the prefabrication rate is high, the quality is stable and controllable, the application range is wide, it can be mass-produced, and the construction cost is effectively reduced. Attached Figure Description

[0011] Figure 1 This is an elevation view of the rotatable steel support hinge structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the rotatable steel support hinge structure of this utility model.

[0013] Figure 3 This is a schematic diagram of the structure of the support component of this utility model.

[0014] Figure 4 This is a schematic diagram of the connection component of this utility model.

[0015] Figure 5 This is a schematic diagram of the installation of the rotatable steel support hinge structure of this utility model. Detailed Implementation

[0016] The present invention will be further described below with reference to the specific accompanying drawings and embodiments.

[0017] like Figures 1-5A rotatable steel support hinge structure includes a support assembly and a connecting assembly. The support assembly includes a steel support connecting section 1 and connecting lugs 2. Multiple connecting lugs 2 are spaced apart at one end of the steel support connecting section 1. The connecting assembly includes fixed lugs 5 and anchoring steel plates 6. Multiple fixed lugs 5 are spaced apart on the anchoring steel plates 6. The connecting lugs 2 are arranged between two adjacent fixed lugs 5. The connecting lugs 2 and the fixed lugs 5 are fixed by a pin assembly. The support assembly and the connecting assembly rotate around the pin assembly.

[0018] The connecting lug 2 is provided with a first pin hole 21, and the fixing lug 5 is provided with a second pin hole 51 corresponding to the first pin hole 21; the pin assembly includes an anti-detachment pin 3 and a pin 4, the first pin hole 21 and the second pin hole 51 are connected by the pin 4 and fixed by the anti-detachment pin 3, and the support assembly and the connecting assembly rotate around the pin 4; the connecting assembly also includes a stiffening rib 7, and a stiffening rib 7 is provided between the anchoring steel plate 6 and the fixing lug 5; the number of fixing lugs 5 is twice that of the connecting lugs 2.

[0019] The steel support connecting section 1 and the connecting ear plate 2 are welded into a support assembly at the factory. The fixing ear plate 5, the anchoring steel plate 6, and the stiffening rib 7 are welded into a connecting assembly. The support assembly and the connecting assembly are assembled into finished products at the factory, or they can be transported to the construction site and then assembled.

[0020] The installation process of this utility model is as follows: Insert the connecting ear plate 2 of the support component into the fixing ear plate 5 of the connecting component, and align the first pin hole 21 and the second pin hole 51. Then, insert the pin 4 into the pin hole and lock it in place with the anti-disengagement pin 3. Adjust the rotatable steel support hinge structure to ensure that the support component and the connecting component can rotate freely around the pin 4. For the rotatable steel support hinge structure that forms a certain angle with the waler 9, rotatable steel support hinge structures are provided at both ends of the waler 9. A steel support intermediate section 8 is installed at the end of the steel support connecting section 1 away from the connecting ear plate 2. The steel support intermediate section 8 can be cut according to the width of the foundation pit. During installation, retaining piles 10 are first driven into the predetermined position, then the soil is excavated and walers 9 are installed. Walers 9 can be welded to retaining piles 10. The center point of the steel support is located on the walers 9, and then the anchoring steel plate 6 is welded to the walers 9. After adjusting the angle of the steel support connecting section 1, the steel support intermediate section 8 is installed and fixed between the two rotatable steel support movable head structures.

[0021] This utility model features a rotatable steel support hinge structure. All components can be prefabricated in the factory and installed directly upon arrival at the site. The structure is easy to install, has high strength, requires fewer accessories, maintains a clean construction site, and has a high reusability rate. It is beneficial for labor safety and embodies the concept of green construction. The structure can be used at any angle, greatly reducing on-site construction work, while ensuring the verticality of the steel support end face and reasonable stress distribution. This rotatable steel support hinge structure has a high prefabrication rate, stable and controllable quality, wide applicability, and can be mass-produced. If it can be widely adopted, it can effectively reduce construction costs.

[0022] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A rotatable steel support hinge structure, characterized in that: The system includes a support assembly and a connecting assembly. The support assembly includes a steel support connecting section (1) and a connecting lug plate (2). Multiple connecting lug plates (2) are spaced apart at one end of the steel support connecting section (1). The connecting assembly includes a fixed lug plate (5) and an anchoring steel plate (6). Multiple fixed lug plates (5) are spaced apart on the anchoring steel plate (6). The connecting lug plate (2) is arranged between two adjacent fixed lug plates (5). The connecting lug plate (2) and the fixed lug plate (5) are fixed by a pin assembly. The support assembly and the connecting assembly rotate around the pin assembly.

2. The rotatable steel support hinge structure according to claim 1, characterized in that: The connecting ear plate (2) is provided with a first pin hole (21), and the fixing ear plate (5) is provided with a second pin hole (51) at the position corresponding to the first pin hole (21).

3. The rotatable steel support hinge structure according to claim 2, characterized in that: The pin assembly includes an anti-detachment pin (3) and a pin (4). The first pin hole (21) and the second pin hole (51) correspond one-to-one and are connected by the pin (4) and fixed by the anti-detachment pin (3). The support assembly and the connecting assembly rotate around the pin (4).

4. The rotatable steel support hinge structure according to claim 1, characterized in that: The connecting assembly also includes stiffening ribs (7), and stiffening ribs (7) are provided between the anchoring steel plate (6) and the fixing ear plate (5).

5. The rotatable steel support hinge structure according to claim 1, characterized in that: The number of fixed ear plates (5) is twice that of the connecting ear plates (2).

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