Rear-mounted rigid wall-connecting device

Abstract

The invention relates to a rear-mounted rigid wall-connecting device which is characterized in that an angle bar is welded with a steel tube, the two sides of an angle bar area welded with the round steel tube are respectively provided with a round hole, the insides of the two round holes are respectively provided with an expansion bolt, the small head of each expansion bolt passes through each round hole of the angle bar and is arranged inside the angle bar, and the tail part of the large head of each expansion bolt is sleeved with an open tube and is arranged outside the angle bar. Each expansion bolt is beaten into concrete and then firmly screwed, and the tail part of the large head of each expansion bolt is driven to the inside of the open tube so as to expand the tube and then fix each bolt as well as the angle bar on the ground or walls. The rear-mounted rigid wall-connecting device provided by the invention is firm and reliable in structure, easy to operate, and larger in stiffness and endurance. By using the rear-mounted rigid wall-connecting device, a frame body and a constructional engineering structure can be connected effectively, thereby ensuring the overall stability and utilization safety of the frame body.

Description

technical field [0001] The invention relates to a rear rigid wall connecting device, which is an improvement on traditional rigid wall connecting parts. For projects that do not have embedded parts (frame tie parts) in advance, the use of this post-embedded device can effectively connect the frame body with the construction project structure, ensuring the overall stability and safety of the frame body. Background technique [0002] The traditional way of connecting wall parts is generally to set up embedded parts in advance, pre-embed steel pipes on the floor, and then use wall steel pipes and fasteners to connect with vertical poles, or pre-embed short steel bars, and open a hole at one end of the wall steel pipe On the steel bar head, the other end is fastened to the vertical pole with a fastener. Disadvantages: 1. Generally, tie bars can only be buried in the ring beam or floor beam top of the building, it is difficult to adjust the vertical direction, and it is difficul...

AI Technical Summary

Problems solved by technology

Disadvantages: 1. Generally, tie bars can only be buried in the ring beam or floor beam top of the building, it is difficult to adjust the vertical direction, and it is difficult to meet the specifications. Regarding the wall parts "should be installed close to the main node, the distance away from the main node should not be greater than 300mm" and "should be set from the first step of the bottom vertical horizontal bar"; 2. It is easy to be removed by workers at will; 3. The top support is fastened to the scaffold with a fastener, which sometimes cannot meet the bearing capacity requirements. Two fasteners are used to fasten the inner and outer poles respectively, which will also affect the passage of scaffold operators and material transportation; 4. Gas cutting is often used during demolition, which is not conducive to fire prevention

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