Axial connecting device for steel members

Abstract

The utility model relates to the technical field of constructional engineering, and discloses a steel member axial connecting device which comprises a base, sleeves are fixed to the top edge and the bottom edge of the base respectively, steel members are inserted into the sides, away from the base, of the interiors of the sleeves respectively, supporting pipes are symmetrically fixed to the middle of the top and the middle of the bottom of the base respectively, and the steel members are inserted into the supporting pipes respectively. A limiting device is arranged on the side, close to the base, of the interior of the supporting pipe, a plurality of guide grooves are symmetrically formed in the left outer wall and the right outer wall of the supporting pipe, an adjusting groove is formed in the middle of the top of the base, and mounting holes are symmetrically formed in the middles of the left inner wall and the right inner wall of the adjusting groove. After the steel members are inserted into the sleeves, the limiting devices are adjusted through the adjusting devices to connect and fix the two steel members, the adjusting devices can be adjusted by rotating the rotating handles to drive the bolts to rotate, and the two rotating handles can adjust the adjusting devices, so that the requirements of different operation habits and operation scenes are met; no special tool is needed for operation, and operation is easy and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, and more specifically discloses an axial connection device for steel members. Background Art

[0002] During the construction of steel structure buildings, due to limitations in production, transportation, hoisting, etc., relatively long structural members are often disassembled in the factory, transported and hoisted to the construction site, and then spliced into a whole. At present, the splicing of steel structure members is usually of two types: (1) welded connection through connecting pieces, and (2) bolt connection by opening holes in the steel structure members with connecting pieces. The first type of welded connection will generate residual stress in the steel structure members, affecting the safety of the structure, and is particularly not applicable to the new light steel structures that are being vigorously promoted in China; in addition, welding requires the use of open flames at the construction site, which poses unsafe factors in construction and has a slow construction speed. The second type of bolt connection by opening holes in the steel structure members has a fast construction speed, but opening holes will weaken the cross-sectional strength of the members. Especially when the members are subjected to large forces and require a large number of bolt connections, there will be a large number of holes, greatly weakening the strength of the members and posing potential safety hazards to the structure.

[0003] In view of the above problems, the prior art (publication number: CN205742527U) discloses an axial connection device for steel members, which includes a steel member A, a steel member B, and a movable connection collar for connecting the steel member A and the steel member B. The movable connection collar includes two half collars. One end of each of the two half collars is connected by a hinge shaft, and a connecting flange is provided at the other end of each of the two half collars. The two connecting flanges are connected by bolts; limiting devices are provided on the steel member A and the steel member B on both sides of the movable connection collar.

[0004] However, during the use of the above device, the connecting flanges are connected into one body by bolts, and a special tool is required for connection during connection, making the connection process not simple enough and reducing work efficiency. Content of the Utility Model

[0005] The main technical problem to be solved by the utility model is to provide an axial connection device for steel members, which can solve the problem that a special tool is required for connection during connection.

[0006] To solve the above technical problems, according to one aspect of the present utility model, more specifically, it is an axial connection device for steel members, including a base. Sleeves are fixedly arranged at both the top edge and the bottom edge of the base. Steel members are inserted into one side of the sleeves away from the base. Support tubes are symmetrically and fixedly arranged at the middle of the top and the bottom of the base. A limiting device is arranged inside the support tube near the base. A plurality of guiding grooves are symmetrically arranged on the left and right outer walls of the support tube. An adjusting groove is formed at the middle of the top of the base. Mounting holes are symmetrically formed at the middle parts of the left and right inner walls of the adjusting groove. A bolt is rotatably connected inside the two mounting holes. Rotating handles are fixedly arranged at both the left and right ends of the bolt. An adjusting device is arranged inside the adjusting groove. Mounting seats are arranged above and below the adjusting device.

[0007] Furthermore, the adjusting device includes two adjusting blocks. A threaded hole is formed at the middle of the right side surface of the adjusting block. The left and right outer walls of the bolt are screwed inside the two threaded holes. Adjusting rods are symmetrically and rotatably connected at the middle of the top and the bottom of the adjusting block. The upper parts of the two upper adjusting rods are rotatably connected to the middle of the bottom of the upper mounting seat, and the lower parts of the two lower adjusting rods are rotatably connected to the middle of the top of the lower mounting seat.

[0008] Furthermore, the limiting device includes a support rod. The support rod is fixedly arranged at the middle of the surface of the mounting seat away from the base. A limiting rod passes through the inside of the guiding groove. A limiting block is fixedly arranged at one end of the limiting rod located inside the support tube. A connecting rod is rotatably connected to the end of the limiting rod away from the limiting block. The end of the connecting rod away from the limiting rod is rotatably connected to the left and right side surfaces of the support rod.

[0009] Furthermore, the thread directions of the left and right outer walls of the bolt are opposite.

[0010] Furthermore, the inner diameter of the threaded hole is equal to the outer diameter of the bolt.

[0011] Furthermore, an anti-slip pad is fixedly arranged on the side surface of the limiting block away from the limiting rod.

[0012] The beneficial effects of the axial connection device for steel members of the present utility model are as follows: After inserting the steel members into the sleeves, the limiting device is adjusted through the adjusting device to connect and fix the two steel members. Rotating the rotating handle drives the bolt to rotate, and then the adjusting device can be adjusted. Both rotating handles can adjust the adjusting device, which is convenient for the needs of different operation habits and operation scenarios. It does not require special tools for operation, which is simple and convenient. The adjusting device can control the upper and lower limiting devices simultaneously, avoiding separate operations that increase operation time and reduce operation efficiency, thereby saving operation time and construction costs. Description of the Drawings

[0013] The following further describes the present utility model in detail with reference to the accompanying drawings and specific implementation methods.

[0014] Figure 1 It is a schematic diagram of the overall structure of the connecting device;

[0015] Figure 2 It is a schematic diagram of the structure of the base part;

[0016] Figure 3 It is a schematic diagram of the adjusting device and the mounting seat;

[0017] Figure 4 It is a schematic diagram of the support pipe and the guide groove;

[0018] Figure 5 It is a schematic diagram of the mounting seat and the limiting device.

[0019] In the figure: 1. Base; 2. Bolt; 3. Rotating handle; 4. Sleeve; 5. Steel member; 6. Adjusting groove; 7. Mounting hole; 8. Adjusting device; 9. Adjusting block; 10. Threaded hole; 11. Adjusting rod; 12. Mounting seat; 13. Support pipe; 14. Guide groove; 15. Limiting device; 16. Support rod; 17. Connecting rod; 18. Limiting rod; 19. Limiting block. Specific implementation method

[0020] The present utility model will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0021] According to one aspect of the present utility model, as Figures 1-5As shown in the figure, an axial connection device for steel members is provided, which includes a base 1. Sleeves 4 are fixed to both the top edge and the bottom edge of the base 1. Steel members 5 are inserted into the inner sides of the sleeves 4 away from the base 1. Support tubes 13 are symmetrically fixed to the middle of the top and the bottom of the base 1. A limiting device 15 is provided on the side close to the base 1 inside the support tubes 13. A plurality of guiding grooves 14 are symmetrically provided on the left and right outer walls of the support tubes 13. An adjusting groove 6 is formed in the middle of the top of the base 1. Mounting holes 7 are symmetrically formed in the middle parts of the left and right inner walls of the adjusting groove 6. A bolt 2 is rotatably connected inside the two mounting holes 7. Rotating handles 3 are fixed to both the left and right ends of the bolt 2. An adjusting device 8 is provided inside the adjusting groove 6. Mounting seats 12 are provided above and below the adjusting device 8. After inserting the steel members 5 into the inner sides of the sleeves 4, the limiting device 15 is adjusted by the adjusting device 8 to connect and fix the two steel members 5. Rotating the rotating handle 3 drives the bolt 2 to rotate, and then the adjusting device 8 can be adjusted. Both of the two rotating handles 3 can adjust the device, which is convenient for the needs of different operation habits and operation scenarios. It does not require special tools for operation, which is simple and convenient. The adjusting device 8 can control the two limiting devices 15 simultaneously, avoiding separate operations that increase the operation time and reduce the operation efficiency, thus saving operation time and construction costs.

[0022] The adjusting device 8 includes two adjusting blocks 9. A threaded hole 10 is formed in the middle of the right side surface of the adjusting block 9. The left and right outer walls of the bolt 2 are screwed into the two threaded holes 10. Adjusting rods 11 are symmetrically and rotatably connected to the middle of the top and the bottom of the adjusting block 9. The upper parts of the two upper adjusting rods 11 are rotatably connected to the middle of the bottom of the upper mounting seat 12, and the lower parts of the two lower adjusting rods 11 are rotatably connected to the middle of the top of the lower mounting seat 12. When the threaded rod 2 rotates, the two adjusting blocks 9 move towards or away from each other through the threaded holes 10, and the mounting plates 12 move up and down through the adjusting rods 11.

[0023] The limiting device 15 includes a support rod 16. The support rod 16 is fixed to the middle of the surface of the mounting seat 12 away from the base 1. A limiting rod 18 is inserted into the guiding groove 14. A limiting block 19 is fixed to one end of the limiting rod 18 located inside the support tube 13. A connecting rod 17 is rotatably connected to the end of the limiting rod 18 away from the limiting block 19. The end of the connecting rod 17 away from the limiting rod 18 is rotatably connected to the left and right side surfaces of the support rod 16. When the mounting plate 12 moves up and down, the support rod 16 moves up and down, and the limiting rod 18 moves left and right through the action of the connecting rod 17, the support tube 13 and the guiding groove 14, and finally drives the limiting block 19 to approach or move away from the inner wall of the steel member 5. When connecting, the limiting block 19 approaches the inner wall of the steel member 5 to limit and fix the steel member 5. When disassembling, the limiting block 19 moves away from the inner wall of the steel member 5, and then the steel member 5 can be disassembled.

[0024] The thread directions of the left and right outer walls of the bolt 2 are opposite. When the bolt 2 rotates, the two adjusting blocks 9 can move towards or away from each other.

[0025] The inner diameter of the threaded hole 10 is equal to the outer diameter of the bolt 2, ensuring that the bolt 2 and the threaded hole 10 can be matched.

[0026] An anti-slip pad is fixed on the side of the limiting block 19 away from the limiting rod 18, increasing or decreasing the friction between the limiting block 19 and the inner wall of the steel member 5 to ensure the connection effect.

[0027] Of course, the above description is not a limitation on the present utility model, and the present utility model is not limited to the above examples. Changes, modifications, additions or substitutions made by those of ordinary skill in the art within the scope of the essence of the present utility model also belong to the protection scope of the present utility model.

Claims

1. A steel member axial connection device, comprising a base (1), characterized in that: The top edge and the bottom edge of the base (1) are both fixed with sleeves (4), and the inner side of the sleeves (4) away from the base (1) is plugged with steel components (5). Support tubes (13) are symmetrically fixed in the middle of the top and the middle of the bottom of the base (1). A limit device (15) is provided in the inner side of the support tube (13) close to the base (1). A plurality of guide grooves (14) are symmetrically provided on the left and right outer walls of the support tube (13). An adjustment groove (6) is provided in the middle of the top of the base (1), and mounting holes (7) are symmetrically provided in the middle of the left and right inner walls of the adjustment groove (6). Bolts (2) are rotatably connected in the inner sides of the two mounting holes (7), and a rotating handle (3) is fixed to the left and right ends of the bolt (2). An adjustment device (8) is provided in the inner side of the adjustment groove (6), and mounting seats (12) are provided above and below the adjustment device (8).

2. The axial connection device for steel members according to claim 1, characterized in that: The adjusting device (8) comprises two adjusting blocks (9), a threaded hole (10) is provided in the middle of the right side surface of the adjusting block (9), the left and right outer walls of the bolt (2) are screwed into the inside of the two threaded holes (10), and the adjusting rods (11) are symmetrically connected to the top middle and the bottom middle of the adjusting block (9) for rotation, the upper parts of the two upper adjusting rods (11) are connected to the bottom middle of the upper mounting seat (12), and the lower parts of the two lower adjusting rods (11) are connected to the top middle of the lower mounting seat (12) for rotation.

3. The axial connection device for steel members according to claim 1, characterized in that: The limiting device (15) comprises a support rod (16), the support rod (16) being fixed to the middle part of the surface of the mounting seat (12) away from the base (1), a limiting rod (18) being passed through the interior of the guide groove (14), the limiting rod (18) being located at one end of the support tube (13) and fixed with a limiting block (19), the end of the limiting rod (18) away from the limiting block (19) being rotatably connected to a connecting rod (17), and the end of the connecting rod (17) away from the limiting rod (18) being rotatably connected to the left and right side surfaces of the support rod (16).

4. The axial connection device for steel members according to claim 2, characterized in that: The left and right outer walls of the bolt (2) have threads in opposite directions.

5. The steel member axial connection device according to claim 2, characterized in that: The inner diameter of the threaded hole (10) is equal to the outer diameter of the bolt (2).

6. The steel member axial connection device according to claim 3, characterized in that: An anti-slip pad is fixed on the side of the limiting block (19) away from the limiting rod (18).

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