CN204098357U - A fastener type steel bar and steel structure connection device - Google Patents

Abstract

The utility model discloses a fastener formula reinforcing bar and steel construction connecting device, including articulated last fastener and lower fastener, go up the fastener and pass through bolt and last nut connection with the lock department of lower fastener, the lower surface of going up the fastener all is equipped with the semi-circular concave surface that blocks the reinforcing bar with the upper surface of lower fastener, all is equipped with the screw thread that contracts with the line is tightened to the reinforcing bar on the concave surface, the concave surface center of lower fastener is equipped with the through-hole, the bottom surface and the steel construction surface laminating of lower fastener are equipped with the aperture on the steel construction, the bolt passes through-hole and aperture cooperation nut connection down fastener and steel construction down in proper order down. The device simple structure, convenient and fast, low cost are connected reinforcing bar and steel construction through the mode of cold joint, have avoided the quality potential safety hazard that welded connection produced for construction speed, safety ring protects.

Description

A fastener type steel bar and steel structure connection device

technical field

The utility model relates to the field of construction equipment, in particular to a fastener-type mechanical connection device for steel bars and steel structures. the

Background technique

Nowadays, the connection between steel bars and steel structures is often connected by welding, especially in complex joints where the steel bars are dense, welding is very inconvenient, and the welding speed is slow, and welding connections often have high requirements for welds, and it is difficult to To ensure the quality of welding, it is easy to cause hidden dangers in quality, and at the same time, a large amount of harmful gas will be produced during welding, which will pollute the environment. So now we are eager for a safe and environmentally friendly tool-based connection device to solve the effective connection between steel bars and steel structures. the

Contents of the invention

The purpose of this utility model is to mainly address the above problems, and propose a fastener-type connection device for steel bars and steel structures. The device is simple in structure, convenient and quick, and low in cost. The hidden dangers of quality and safety caused by welding connections speed up the construction speed and are safe and environmentally friendly. the

The utility model is realized through the following technical solutions:

A fastener-type connection device for steel bars and steel structures, including hinged upper fasteners and lower fasteners, the fastening part of the upper fastener and the lower fastener is connected by an upper bolt and an upper nut, the lower surface of the upper fastener The upper surface of the fastener is equipped with a semi-circular concave surface that clamps the steel bar, and the concave surface is provided with threads that fit the steel bar. The center of the concave surface of the lower fastener is provided with a through hole. Fitting, the steel structure is provided with a small hole, and the lower bolt passes through the through hole and the small hole in turn to cooperate with the lower nut to connect the lower fastener and the steel structure.

The length of the upper fastener and the lower fastener along the axial direction of the concave surface is 9-11cm. the

The method of using this device is as follows: first, the lower fastener is connected to the steel structure through the lower bolt and the lower nut. Fasten it with nuts. the

This utility model is applicable to any specification of rebar, and the number and spacing of fasteners need to be calculated according to the force. the

Compared with the prior art, the utility model has the following positive effects:

1. Simple structure, convenient and fast construction, safety and environmental protection;

2. Compared with the welding connection of the prior art, the biggest feature of the utility model is that it does not need to carry the electric welding machine during on-site construction, and it can be tightened only by hand, and finally it can be firmed by hammering, which is convenient and quick.

3. The device can be pre-fixed on the steel structure. When the steel bar is connected, the upper fastener is directly closed, and the bolt is tightened to fix the steel bar to complete the cold connection between the steel bar and the steel structure. the

Description of drawings

Fig. 1 is a structural representation of a fastener-type connecting device for reinforcing bars and steel structures. the

Fig. 2 is a structural schematic view of the upper and lower fasteners of the present invention; wherein: Fig. 2A is a top view of the upper fastener, Fig. 2B is a top view of the lower fastener, and Fig. 2C is a front view of the upper and lower fasteners. the

Fig. 3A is a schematic diagram of the structure of the upper nut of the present invention, and Fig. 3B is a schematic diagram of the structure of the upper bolt of the present invention. the

Fig. 4A is a schematic diagram of the structure of the lower bolt of the utility model, and Fig. 4B is a schematic diagram of the structure of the lower nut of the utility model. the

Fig. 5 is a schematic diagram of the mechanical connection between the steel bar and the steel structure of the utility model. the

Among them: 1. Upper fastener; 2. Lower fastener; 3. Upper bolt; 4. Upper nut; 5. Lower bolt; 6. Lower nut; 7. Steel structure; hole. the

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail. the

Example 1:

As shown in Figure 1, a fastener-type connection device for steel bars and steel structures includes hinged upper fasteners 1 and lower fasteners 2. The nut 4 is connected, the lower surface of the upper fastener 1 and the upper surface of the lower fastener 2 are provided with a semicircular concave surface 9 for clamping the steel bar 8, and the upper fastener 1 and the lower fastener 2 are all provided with internal threads, so The internal thread is located on the concave surface 9 and fits with the steel bar 8. The center of the concave surface 9 of the lower fastener 2 is provided with a through hole 10. The bottom surface of the lower fastener 2 is attached to the surface of the steel structure 7. The steel structure 7 is provided with a small The lower bolt 5 passes through the through hole 10 and the small hole in turn to cooperate with the lower nut 6 to connect the lower fastener 2 and the steel structure 7.

The upper nut 4 is a shank nut (as shown in FIGS. 3A and 3B , the nut has two protrusions), and the lower nut 6 is a hexagonal nut. the

In actual operation, the upper bolt 3 is first passed through the bolt hole on the left side of the lower fastener 2, and then a hole is opened on the steel structure 7, and the lower fastener 2 and the steel structure 7 are mechanically connected through the lower bolt 5 and the lower nut 6, Then place the connecting steel bar 8 on the lower fastener 2 to ensure that the thread on the connecting steel bar 8 is aligned with the internal thread of the lower fastener 2, then close the upper fastener 1, and finally tighten the upper bolt 3 by hand, and hit it with a hammer after fixing The upper bolt 3 locks the upper and lower fasteners. The wall thickness of the upper fastener 1 and the lower fastener 2 is 8mm, the axial length along the concave surface 9 is 10cm, and the thickness from the inner wall to the outer surface of the thread of the upper nut 4 and the lower nut 6 is 8mm.

Claims (2)

1. A fastener-type connecting device for steel bars and steel structures, including hinged upper fasteners (1) and lower fasteners (2), characterized in that: the upper fastener (1) and the lower fastener (2) are buckled The joint is connected by the upper bolt (3) and the upper nut (4), and the lower surface of the upper fastener (1) and the upper surface of the lower fastener (2) are provided with a semicircular concave surface ( 9), the concave surface (9) is provided with threads that match the steel bar (8), the center of the concave surface (9) of the lower fastener (2) is provided with a through hole (10), and the bottom surface of the lower fastener (2) Fit the surface of the steel structure (7), the steel structure (7) is provided with a small hole, the lower bolt (5) passes through the through hole (10) and the small hole in turn and cooperates with the lower nut (6) to connect the lower fastener (2) and steel structures (7). 2. A fastener-type connecting device for steel bars and steel structures according to claim 1, characterized in that: the axial length of the upper fastener (1) and the lower fastener (2) along the concave surface (9) It is 9-11cm.