Expansion type steel bar connecting self-locking device

Abstract

The invention provides an expansion type steel bar connecting self-locking device. The expansion type steel bar connecting self-locking device comprises a first connector and a second connector, wherein the first connector comprises an insertion-connecting head and a first connecting part connected with a first steel bar; the first end of the insertion-connecting head is connected to the first connecting part; a radial seam is formed in the second end of the insertion-connecting head; the second connector comprises a second connecting part connected with a second steel bar, and a socket sleeve connected to the second connecting part; a socket cavity into which the insertion-connecting head can be inserted is formed in the socket sleeve; and the socket sleeve is internally provided with a protruding thorn used for spreading the radial seam so that the insertion-connecting head can be locked and fixed. According to the expansion type steel bar connecting self-locking device, the problem that existing thread steel bar sleeve connecting devices are not suitable for being used on the narrow working surfaces of the steel bar joints of components is solved.

Description

technical field [0001] The invention relates to a tool for connecting steel bars, in particular to an expandable self-locking device for connecting steel bars. Background technique [0002] In the traditional construction of the construction industry, two steel structures or steel members are often butted together, so the steel bar connection technology emerged as the times require, and is called one of the top ten new technologies by the industry. The prefabricated building is to disassemble the building into components, which are processed in the factory and transported to the construction site for hoisting and assembly. In this process, the reinforcement connections between the components are all in the same section, and it is also the key core area of ​​the structure. The threaded steel bar connection sleeve device is more common in the existing market. This steel bar connection device is a sleeve with an internal thread, and an external thread that matches the internal...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the defects existing in the prior art, a self-locking device for expansion-type steel bar connection is now provided to solve the problem that the existing threaded steel bar sleeve connection device is not suitable for use on the narrow working face of the steel bar connection between components and components

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