Reinforcing bar coupler

Abstract

The object of this invention is to provide a reinforcing bar coupler coupling reinforcing bars in a mechanical coupling method, thus ensuring prompt and easy coupling operation and allowing the reinforcing bars to be firmly coupled to each other. The reinforcing bar coupler includes a cylindrical sleeve. The sleeve is opened at a surface thereof, and has a first seating groove on an inner surface thereof so that ends of reinforcing bars are seated therein, and a pair of first locking parts each having a first slant surface. A cover unit has a second seating groove on a surface thereof to cover the reinforcing bars seated in the first seating groove of the sleeve. A wedge has a pair of second locking parts each having a second slant surface, and is fitted into the sleeve to wedge the cover unit and the reinforcing bars in the sleeve.

Description

technical field [0001] The present invention relates generally to rebar connectors, and in particular to a rebar connector designed to connect rebars by a mechanical joining method, thereby ensuring that when rebars are connected to each other in reinforced concrete structures, Quick and easy connection operation, and enables the reinforcement to be firmly connected to each other. Background technique [0002] There are many methods for connecting steel bars currently used, such as lap joint method, air pressure welding method, screw connection method and the like. Wherein, the overlapping method carried out in this way is generally adopted, that is, the ends of the steel bars are overlapped along their certain lengths, and the overlapping ends are bundled together with steel wires. However, the lapping method has a disadvantage in that the effect of the tensile load on the lapped bars is weak. As for the air pressure welding method, the operation is such that the ends of ...

AI Technical Summary

Problems solved by technology

However, the problem with the gas welding method is that the gas pressure welding process is complicated and time-consuming, and the welded part of the steel bar has poor heat resistance, requiring further follow-up inspections

However, the threaded connection method has a problem in that the ends of the bars must be tapped and long bars must be connected in a screw-type fastening method while being aligned with each other, so the threaded connection method is difficult to handle

Another problem with the threaded connection method is that the threaded portion of each bar has a smaller diameter than the rest of the bar, so that the threaded sections are weak against tensile loads

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