Connecting piece of prefabricated modular steel structure

Abstract

The utility model relates to the technical field of modularized steel structure connecting pieces, in particular to a connecting piece of a prefabricated modularized steel structure, which comprises a plurality of steel structural pieces, every two adjacent steel structural pieces are spliced with each other, a fixed connecting piece is arranged at the connecting position of the four steel structural pieces, and the fixed connecting piece comprises four L-shaped steel plates. The L-shaped steel plates abut against the corner portions of the steel structural part, the L-shaped steel plates and the steel structural part are fixedly connected through fastening bolts, a front side rectangular plate is arranged on the front sides of the four L-shaped steel plates, a rear side rectangular plate is arranged on the rear sides of the four L-shaped steel plates, and rectangular insertion rods are inserted into the first rectangular insertion holes and the second rectangular insertion holes in a matched mode. A limiting disc is fixedly installed at the rear end of the rectangular inserting rod, a stud is fixedly installed at the front end of the rectangular inserting rod, and the stud is in threaded connection with a first nut. The fixing device is convenient to fix, mount and dismount, and is firm and stable in structure.

Description

Technical Field

[0001] The utility model relates to the technical field of modular steel structure connectors, and specifically to connectors for prefabricated modular steel structures. Background Technique

[0002] With the acceleration of the urbanization process and the continuous growth of the construction industry's demand for green, efficient, and energy-saving, prefabricated modular steel structures, as an advanced building technology, have gradually occupied an important position in the modern construction field. This technology prefabricates building components in the factory and quickly assembles them on-site, greatly improving the construction efficiency and quality, while reducing environmental pollution and resource waste.

[0003] The fixing method of traditional prefabricated modular steel structures mostly uses welding. However, when welding operations are carried out on-site, not only does it take a long time, but it is also greatly affected by environmental factors such as weather, making it difficult to ensure the construction progress; moreover, the welding quality is affected by various factors such as welder skills and environmental conditions, making it difficult to ensure the strength and stability of the connectors; in addition, using welding for fixing is difficult to achieve rapid disassembly, assembly, and module recombination, restricting the flexibility and variability of modular buildings. In view of this, we have proposed connectors for prefabricated modular steel structures. Content of the Utility Model

[0004] The purpose of the utility model is to provide connectors for prefabricated modular steel structures to solve the defects proposed in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution:

[0006] The connector for prefabricated modular steel structures includes a plurality of rectangular ring-shaped steel structure members. Two adjacent steel structure members are spliced with each other. A fixing connector is provided at the connection part of the four steel structure members. The fixing connector includes four L-shaped steel plates with an L-shaped cross-section. The L-shaped steel plates abut against the corner parts of the steel structure members. The L-shaped steel plates and the steel structure members are fixedly connected by fastening bolts. A front-side rectangular plate is provided on the front sides of the four L-shaped steel plates, and a rear-side rectangular plate is provided on the rear sides of the four L-shaped steel plates. A first rectangular socket is provided in the plate body at the corner part of the L-shaped steel plate. Four second rectangular sockets arranged in a matrix are provided on both the front-side rectangular plate and the rear-side rectangular plate. A rectangular plug rod is inserted and matched in the first rectangular socket and the second rectangular sockets. A limit disk is fixedly installed at the rear end of the rectangular plug rod, and a stud is fixedly installed at the front end of the rectangular plug rod. A first nut is threadedly connected to the stud.

[0007] Preferably, the fastening bolt passes through the side plate bodies of two L-shaped steel plates and two steel structure members at the same time, and a second nut is threadedly connected to the fastening bolt.

[0008] Preferably, first bolt holes are provided on both side plates at the corner of the steel structure member, second bolt holes are provided on both side plates of the L-shaped steel plate, and the fastening bolt passes through the first bolt hole and the second bolt hole.

[0009] Preferably, a second elastic washer is sleeved on the fastening bolt, and the second nut presses the second elastic washer against the L-shaped steel plate.

[0010] Preferably, a first elastic washer is sleeved on the stud, and the first nut presses the first elastic washer against the front side of the front rectangular plate.

[0011] Preferably, the cross-sections of the first rectangular socket hole, the second rectangular socket hole and the rectangular insertion rod are all rectangular, and the size of the rectangular insertion rod is adapted to the size of the first rectangular socket hole and the size of the second rectangular socket hole.

[0012] Preferably, the outer diameter of the limiting disc is larger than the outer diameter of the second rectangular socket hole, and the limiting disc abuts against the rear side of the rear rectangular plate.

[0013] Preferably, the length of the rectangular insertion rod is less than the sum of the thicknesses of the front rectangular plate, the rear rectangular plate and the L-shaped steel plate.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. By providing the steel structure members of the present utility model, after splicing a plurality of steel structure members together and then fixing them through the fixing connectors, the effect of being able to be quickly connected and fixedly installed at the construction site can be achieved.

[0016] 2. By providing the rectangular insertion rod passing through the first rectangular socket hole and the second rectangular socket hole, it is convenient to select the corresponding number of L-shaped steel plates as needed. After the L-shaped steel plate, the front rectangular plate and the rear rectangular plate are fixed, the fastening bolt is used to fix between the fixing connector and the steel structure member, achieving the effect of more firm fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall structural schematic diagram of the present utility model;

[0018] Figure 2 is the exploded structural schematic diagram of the present utility model;

[0019] Figure 3 is the structural schematic diagram of the fixing connector of the present utility model;

[0020] Figure 4Explosion structure schematic diagram of the fixed connection part of the utility model.

[0021] The meanings of each label in the figure are as follows:

[0022] 1. Steel structure member; 10. First bolt hole;

[0023] 2. Fixed connection part; 20. L-shaped steel plate; 201. Second bolt hole; 21. First rectangular socket; 22. Front rectangular plate; 221. Rear rectangular plate; 222. Second rectangular socket; 23. Rectangular plug; 231. Limit disc; 24. Stud; 25. First elastic washer; 26. First nut;

[0024] 3. Fastening bolt; 30. Second elastic washer; 31. Second nut. Specific implementation mode

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1 - 4 , the present utility model provides a technical solution: a connecting member for prefabricated modular steel structures, including a plurality of rectangular ring-shaped steel structure members 1, two adjacent steel structure members 1 are spliced with each other, a fixed connection part 2 is arranged at the connection part of the four steel structure members 1, the fixed connection part 2 includes four L-shaped steel plates 20 with L-shaped cross-sections, the L-shaped steel plates 20 are abutted against the inner corner parts of the corresponding steel structure members 1, the L-shaped steel plates 20 and the steel structure members 1 are fixedly connected by fastening bolts 3, a front rectangular plate 22 is arranged on the front sides of the four L-shaped steel plates 20, a rear rectangular plate 221 is arranged on the rear sides of the four L-shaped steel plates 20, a first rectangular socket 21 is arranged in the plate body at the corner part of the L-shaped steel plate 20, four second rectangular sockets 222 arranged in a matrix are arranged on both the front rectangular plate 22 and the rear rectangular plate 221, a rectangular plug 23 is inserted and matched in the first rectangular socket 21 and the second rectangular sockets 222, a limit disc 231 is fixedly installed at the rear end of the rectangular plug 23, a stud 24 is fixedly installed at the front end of the rectangular plug 23, and a first nut 26 is threadedly connected to the stud 24 to realize the assembly and fixing operation.

[0027] In this embodiment, the fastening bolt 3 passes through the side plates of two L-shaped steel plates 20 and two steel structure members 1 at the same time, and a second nut 31 is threadedly connected to the fastening bolt 3; first bolt holes 10 are provided on both side plates at the corner part of the steel structure member 1, and second bolt holes 201 are provided on both side plates of the L-shaped steel plate 20. The fastening bolt 3 passes through the first bolt hole 10 and the second bolt hole 201 to realize the fixing operation by using the fastening bolt 3.

[0028] Specifically, a second elastic washer 30 is sleeved on the fastening bolt 3, and the second nut 31 presses the second elastic washer 30 against the L-shaped steel plate 20; a first elastic washer 25 is sleeved on the stud 24, and the first nut 26 presses the first elastic washer 25 against the front side of the front rectangular plate 22, which can prevent the second nut 31 and the first nut 26 from loosening by using the second elastic washer 30 and the first elastic washer 25.

[0029] Furthermore, the cross-sections of the first rectangular socket 21, the second rectangular socket 222 and the rectangular plug 23 are all rectangular, and the size of the rectangular plug 23 is adapted to the size of the first rectangular socket 21 and the size of the second rectangular socket 222, so that the rectangular plug 23 can stably pass through the first rectangular socket 21 and the second rectangular socket 222.

[0030] In addition, the outer diameter of the limiting disc 231 is larger than the outer diameter of the second rectangular socket 222, and the limiting disc 231 abuts against the rear side of the rear rectangular plate 221 to realize the limiting operation.

[0031] It should be noted that the length of the rectangular plug 23 is less than the sum of the thicknesses of the front rectangular plate 22, the rear rectangular plate 221 and the L-shaped steel plate 20, so that the first nut 26 can be normally tightened on the stud 24 and press the front rectangular plate 22.

[0032] When the connector of the prefabricated modular steel structure of the present utility model is in use, a plurality of steel structure members 1 are stacked in a matrix, and then the L-shaped steel plate 20 is abutted against the corner part of the steel structure member 1, so that the rear rectangular plate 221 and the front rectangular plate 22 respectively abut against the front and rear side surfaces of the steel structure member 1 and the L-shaped steel plate 20. Then, the rectangular plug 23 is passed through the first rectangular socket 21 and the second rectangular socket 222 to ensure that the limiting disc 231 abuts against the rear side of the rear rectangular plate 221. Then, the first elastic washer 25 is sleeved on the stud 24, and the first nut 26 is tightened on the stud 24. Finally, the fastening bolt 3 passes through the side plates of two L-shaped steel plates 20 and two steel structure members 1 at the same time, then the second elastic washer 30 is sleeved, and the second nut 31 is tightened to complete the fixation.

[0033] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and the above embodiments and the descriptions in the specification are only preferred examples of the present utility model, and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A prefabricated modular steel structure connector, comprising a plurality of rectangular ring-shaped steel structure members (1), characterized in that: Two adjacent steel structural members (1) are spliced ​​with each other, and a fixed connecting member (2) is provided at the connection position of the four steel structural members (1), and the fixed connecting member (2) comprises four L-shaped steel plates (20) each having an L-shaped cross section, and the L-shaped steel plates (20) are abutted against the corners of the steel structural members (1), and the L-shaped steel plates (20) are fixedly connected to the steel structural members (1) by fastening bolts (3), and a front rectangular plate (22) is provided on the front side of the four L-shaped steel plates (20), and a rear rectangular plate (221) is provided on the rear side of the four L-shaped steel plates (20). A first rectangular plug hole (21) is provided in the plate body at the corner of the L-shaped steel plate (20), and four second rectangular plug holes (222) arranged in a matrix are provided on the front rectangular plate (22) and the rear rectangular plate (221), and a rectangular plug rod (23) is inserted and matched in the first rectangular plug hole (21) and the second rectangular plug hole (222), and a limit plate (231) is fixedly installed at the rear end of the rectangular plug rod (23), and a stud (24) is fixedly installed at the front end of the rectangular plug rod (23), and a first nut (26) is threadedly connected to the stud (24).

2. The connector of the prefabricated modular steel structure according to claim 1, characterized in that: The fastening bolt (3) passes through the two L-shaped steel plates (20) and the side plates of the two steel structural members (1) at the same time, and a second nut (31) is threadedly connected to the fastening bolt (3).

3. The connector of the prefabricated modular steel structure according to claim 2, characterized in that: The steel structure (1) is provided with first bolt holes (10) on both side plates at the corners, the L-shaped steel plate (20) is provided with second bolt holes (201) on both side plates, and the fastening bolts (3) pass through the first bolt holes (10) and the second bolt holes (201).

4. The connector of the prefabricated modular steel structure according to claim 3, characterized in that: A second elastic washer (30) is sleeved on the fastening bolt (3), and the second nut (31) presses the second elastic washer (30) onto the L-shaped steel plate (20).

5. The connector of the prefabricated modular steel structure according to claim 1, characterized in that: A first elastic washer (25) is sleeved on the stud (24), and the first nut (26) presses the first elastic washer (25) against the front side surface of the front rectangular plate (22).

6. The connector of the prefabricated modular steel structure according to claim 1, characterized in that: The cross-sections of the first rectangular insertion hole (21), the second rectangular insertion hole (222) and the rectangular insertion rod (23) are all rectangular, and the size of the rectangular insertion rod (23) matches the size of the first rectangular insertion hole (21) and the size of the second rectangular insertion hole (222).

7. The connector of the prefabricated modular steel structure according to claim 1, characterized in that: The outer diameter of the limiting plate (231) is greater than the outer diameter of the second rectangular insertion hole (222), and the limiting plate (231) abuts against the rear side surface of the rear rectangular plate (221).

8. The connector of the prefabricated modular steel structure according to claim 1, characterized in that: The length of the rectangular insertion rod (23) is less than the sum of the thicknesses of the front rectangular plate (22), the rear rectangular plate (221) and the L-shaped steel plate (20).

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