Steel bar bidirectional mechanical connecting device and steel bar mechanical connecting method

Abstract

The invention relates to a steel bar bidirectional mechanical connecting device and a steel bar mechanical connecting method. According to the steel bar bidirectional mechanical connecting device andthe steel bar mechanical connecting method, the technical problems that as for an existing steel bar mechanical connecting device, the connecting strength is low, the connecting quality of on-site construction is uneven, and construction is complex are solved. The steel bar bidirectional mechanical connecting device is provided with two clasping hoops, namely the left-side clasping hoop and the right-side clasping hoop. The clasping hoops comprise a plurality of clasping hoop pieces and are internally provided with clasping inner cavities. The clasping hoops can clasp steel bars into the clasping inner cavities. The outer circumferences of the clasping hoops are provided with clasping hoop external tapers, and locking external threads are arranged on the outer surfaces of the clasping hoopexternal tapers. The steel bar bidirectional mechanical connecting device and the steel bar mechanical connecting method can be widely applied to steel bar connection during building and bridge construction.

Description

technical field [0001] The invention relates to the field of construction machinery, in particular to a two-way mechanical connecting device for steel bars and a method for mechanically connecting steel bars. Background technique [0002] In the construction of buildings and bridges in the construction industry, in order to meet the needs of high-rise buildings and bridges for steel skeletons, various specifications of rebar need to be connected and used. [0003] At present, the general steel bar connection methods in building construction include binding and lap jointing and welding. The binding and lap joint operation is complicated, labor efficiency is low, the quality of on-site construction connection is uneven, and labor intensity is high. It is difficult to transport to the high-rise after the operation of binding and lap joint, which seriously restricts the construction efficiency. The tensile strength of the steel bar after binding and lap joint is low, which bring...

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Problems solved by technology

[0003] At present, the general steel bar connection methods in building construction include lashing and lapping and welding. The lashing and lapping operation is complicated, the labor efficiency is low, the connection quality of the on-site construction is uneven, and the labor intensity is high. It is difficult to transport to high-rise after binding and lapping, which seriously restricts the construction efficiency. The tensile strength of the steel bars after binding and lapping is low, which brings hidden dangers to the quality of the project; Changes occur, forming the problem of stress concentration, which seriously affects the tensile strength of the welded steel bar. At the same time, the welding process is complicated to operate on site and the construction cost is high.

[0004] At present, there is still a mechanical connection method, which is to process the head parts of the two steel bars to be connected into threads respectively, and use a sleeve connector with internal threads to connect the two steel bars to be connected together through threads. This mechanical connection method needs to process all the heads of the steel bars that need to be connected into threads in advance, and then connect the two steel bars that need to be connected with the sleeve connector with internal threads through a rotating operation. The on-site operation workload is large. The labor intensity is high, and sometimes because the length of the screw thread of the sleeve connector is not enough, many connectors cannot meet the quality requirements in operation, causing serious quality problems

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