Connecting piece for steel structure bridge

Abstract

The connecting piece for the steel structure bridge comprises a seat body and a movable piece movably connected with the seat body in the vertical direction, hooks are arranged at the two ends of the seat body respectively, the lower ends of the two hooks are rotationally connected with the two ends of the movable piece respectively, and the upper ends of the hooks are higher than the seat body; the movable part is in threaded connection with a first bolt, and when the first bolt is screwed, one end of the first bolt abuts against the base body and then can push the movable part to move downwards, so that the hooks move downwards, and the upper ends of the two hooks are close to each other; a connecting base is fixedly connected to the side of the base body and is in threaded connection with a second bolt, and the upper portion of the second bolt is not shielded.

Description

Technical Field

[0001] The utility model relates to a connecting piece for a steel structure bridge. Background Art

[0002] During the construction and installation of a bridge support, generally, the load-bearing beam is installed first, and then the truss beam is placed on the load-bearing beam. Considering safety factors, the truss beam needs to be temporarily fixedly connected to the load-bearing beam. The current common practice is to weld a gantry frame on the upper flange surface of the load-bearing beam to restrict the lower chord of the truss beam so that the two do not move relative to each other. When the support is removed, the gantry frame is cut off. This method has problems such as high-altitude welding operations, high danger, environmental unfriendliness, and difficult reuse due to multiple cutting and welding operations of the gantry frame. There is an urgent need to design a connecting and fixing fixture for the truss and the load-bearing beam that is simple to install and disassemble, environmentally friendly, has a high reuse rate, and stable performance. Summary of the Utility Model

[0003] The utility model solves the deficiencies of the prior art and provides a connecting piece for a steel structure bridge.

[0004] The technical solution adopted by the utility model is as follows: A connecting piece for a steel structure bridge includes a seat body and a movable member movably connected to the seat body vertically. Hooks are respectively provided at both ends of the seat body, and the lower ends of the two hooks are respectively rotatably connected to the two ends of the movable member. The upper ends of the hooks protrude above the seat body; the movable member is threadedly connected to a first bolt. When the first bolt is screwed, one end of the first bolt abuts against the seat body and then can push the movable member to move downward, causing the hooks to move downward and the upper ends of the two hooks to approach each other; a connecting seat is fixedly connected to the side of the seat body, and the connecting seat is threadedly connected to a second bolt, and there is no obstruction above the second bolt.

[0005] Wherein, an elastic member is further included, and the elastic member is connected to the hook, and the elastic member applies a force to the hook tending to move in the direction of the two hooks approaching each other.

[0006] Wherein, the seat body includes a base plate and two first side plates fixedly connected to the base plate. There is a gap between the two first side plates. A strip-shaped chute is provided on the first side plate. Openings through which pins can be inserted are respectively provided at both ends of the movable member and the lower ends of the hooks. The pins are inserted through the strip-shaped chute, the openings of the movable member, and the lower-end openings of the hooks to connect the seat body, the movable member, and the hooks.

[0007] Wherein, one end of the elastic member is connected to the hook, and the other end of the elastic member is connected to the seat body; or, one end of the elastic member is connected to the hook, and the other end of the elastic member is connected to the opposite hook.

[0008] Among them, the movable part includes two second side plates, and the two second side plates are fixedly connected by two first connecting plates. The two first connecting plates are arranged up and down. A first nut is provided between the two first connecting plates. The circumferential movement of the first nut is restricted, and a first bolt is threadedly connected to the first nut.

[0009] Among them, the connecting seat includes two third side plates, and the two third side plates are fixedly connected by two second connecting plates. The two second connecting plates are arranged up and down. A second nut is provided between the two second connecting plates. The circumferential movement of the second nut is restricted, and a second bolt is threadedly connected to the second nut.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] By cross - using springs and bolts, the present utility model is convenient and labor - saving to install. One person can complete the installation and disassembly during high - altitude operation, which is safe and convenient.

[0012] Each component of the present utility model is assembled by pin shafts, and each component can be recycled, achieving an environmental protection effect.

[0013] The present utility model achieves the purpose of clamping connection through bolts and springs. Without complex structures, the performance of the present utility model is stable and not easily fails. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model.

[0015] Figure 2 is Figure 1 a schematic structural diagram from another perspective.

[0016] Figure 3 is Figure 1 a schematic structural diagram from yet another perspective DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The present utility model will be further described below in conjunction with the drawings and through embodiments.

[0018] As Figure 1 and 3As shown in the figure, in this embodiment, the connecting member for a steel structure bridge includes a base body 1 and a movable member 2 that is movably connected to the base body 1 vertically. Hooks 3 are provided at both ends of the base body 1, and the lower ends of the two hooks 3 are respectively rotatably connected to both ends of the movable member 2. The upper ends of the hooks 3 protrude above the base body 1. A first bolt 21 is threadedly connected to the movable member 2. When the first bolt 21 is screwed, one end of the first bolt 21 abuts against the base body 1 and can push the movable member 2 to move downward, causing the hooks 3 to move downward and the upper ends of the two hooks 3 to approach each other. A connecting seat 4 is fixedly connected to the side of the base body 1, and a second bolt 5 is threadedly connected to the connecting seat 4. There is no obstruction above the second bolt 5. In this embodiment, the connecting member for a steel structure bridge is mainly used for fixing the truss and the support beam. The truss is above the support beam and is supported by the support beam. A modular steel structure bridge system is welded by upper chords, lower chords, vertical rods and diagonal rods. The lower chord includes two channel steels arranged back to back. The two hooks 3 sandwich the lower chord. When the first bolt 21 is screwed, after the first bolt 21 abuts against the base body 1, the two hooks 3 are clamped and moved downward, and the locking between the connecting member for a steel structure bridge and the truss can be realized. When the connecting member for a steel structure bridge is in use, the upper end of the second bolt 5 abuts against the support beam. The support beam is an I-beam, and the upper end of the second bolt 5 abuts against the wing of the I-beam, so that the truss and the support beam are combined.

[0019] As a preferred embodiment, in this embodiment, an elastic member 5 is further included. The elastic member 5 is connected to the hook 3, and the elastic member 5 applies a force to the hook 3 to tend to move in the direction of the two hooks 3 approaching each other. The elastic member 5 in this embodiment causes the two hooks 3 to tend to hold the truss tightly, and gives a holding force when the bolt is in a tightened state, improving the safety of construction.

[0020] As a preferred embodiment, in this embodiment, the base body 1 includes a base plate 11 and two first side plates 12 fixedly connected to the base plate 11. There is a gap between the two first side plates 12. A strip-shaped chute 13 is provided on the first side plate 12. Openings through which a pin 6 can be inserted are respectively provided at both ends of the movable member 2 and the lower ends of the hooks 3. The pin 6 is inserted through the strip-shaped chute 13, the opening of the movable member 2, and the lower-end opening of the hook 3 to connect the base body 1, the movable member 2, and the hook 3. In this embodiment, by providing the strip-shaped chute 13 and combining with the pin 6, the hook 3 can rotate and slide relative to the movable member 2, and the combination is simple and stable and reliable.

[0021] As a preferred embodiment, in this embodiment, one end of the elastic member 5 is connected to the hook 3, and the other end of the elastic member 5 is connected to the base body 1; or, one end of the elastic member 5 is connected to the hook 3, and the other end of the elastic member 5 is connected to the opposite hook 3. The elastic member 5 is preferably a spring.

[0022] In this embodiment as a preferred implementation manner, the movable member 2 includes two second side plates 22. The two second side plates 22 are fixedly connected by two first connecting plates 23. The two first connecting plates 23 are arranged up and down. A first nut 24 is provided between the two first connecting plates 23. The circumferential movement of the first nut 24 is restricted. The first bolt 21 is threadedly connected to the first nut 24. In this embodiment, the specific manner in which the circumferential movement of the first nut 24 is restricted includes welding the first nut 24 to the first connecting plate 23, or welding the first nut 24 to the second side plate 22, or the second side plate 22 clamping the first nut 24 so that the first nut 24 cannot rotate freely. In specific implementation, a combination of the above methods can be used. When the second side plate 22 clamps the first nut 24 so that the first nut 24 cannot rotate freely, in this implementation scheme, after the first bolt 21 is separated from the first nut 24, the nut can be conveniently replaced, and the later maintenance is convenient.

[0023] In this embodiment as a preferred implementation manner, the connecting seat 4 includes two third side plates 41. The two third side plates 41 are fixedly connected by two second connecting plates 42. The two second connecting plates 42 are arranged up and down. A second nut 43 is provided between the two second connecting plates 42. The circumferential movement of the second nut 43 is restricted. The second bolt 5 is threadedly connected to the second nut 43. In this embodiment, the specific manner in which the circumferential movement of the second nut 43 is restricted includes welding the second nut 43 to the second connecting plate 42, or welding the second nut 43 to the third side plate 41, or the third side plate 41 clamping the second nut 43 so that the second nut 43 cannot rotate freely. In specific implementation, a combination of the above methods can be used. In this implementation scheme, after the second bolt 5 is separated from the second nut 43, the nut can be conveniently replaced, and the later maintenance is convenient.

Claims

1. A connector for a steel structure bridge, characterized in that: It includes a seat body and a movable part which is movably connected to the seat body in the vertical direction. Hooks are respectively provided at two ends of the seat body. The lower ends of the two hooks are respectively rotatably connected to the two ends of the movable part, and the upper ends of the hooks are higher than the seat body. The movable part is threadedly connected to a first bolt. When the first bolt is turned, one end of the first bolt contacts the seat body and pushes the movable part to move downward so that the hook moves downward and the upper ends of the two hooks are close to each other. A connecting seat is fixedly connected to the side of the seat body, and the connecting seat is threadedly connected to the second bolt, and there is no obstruction above the second bolt.

2. The connector for a steel structure bridge according to claim 1, characterized in that: It also includes an elastic member, which is connected to the hooks. The elastic member applies a force to the hooks to move in a direction in which the two hooks move closer to each other.

3. The connector for a steel structure bridge according to claim 1, characterized in that: The seat body includes a base plate and two first side plates fixedly connected to the base plate, with a gap between the two first side plates, a strip slide groove is provided on the first side plate, and openings for passing a pin are respectively provided at both ends of the movable part and the lower end of the hook. The pin is passed through the strip slide groove, the opening of the movable part and the lower end opening of the hook to connect the seat body, the movable part and the hook.

4. The connector for a steel structure bridge according to claim 1, characterized in that: One end of the elastic member is connected to the hook, and the other end of the elastic member is connected to the seat body; or, one end of the elastic member is connected to the hook, and the other end of the elastic member is connected to the opposite hook.

5. The connector for a steel structure bridge according to claim 1, characterized in that: The movable part includes two second side plates, which are fixedly connected by two first connecting plates. The two first connecting plates are arranged up and down, and a first nut is arranged between the two first connecting plates. The circumferential movement of the first nut is restricted, and the first bolt is threadedly connected to the first nut.

6. The connector for a steel structure bridge according to claim 1, characterized in that: The connecting seat includes two third side plates, which are fixedly connected by two second connecting plates. The two second connecting plates are arranged up and down, and a second nut is arranged between the two second connecting plates. The circumferential movement of the second nut is restricted, and the second bolt is threadedly connected to the second nut.

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