Self-locking steel bar connector for prefabricated components

Abstract

The invention discloses a prefabricated part self-locking type steel bar connecting machine. The prefabricated part self-locking type steel bar connecting machine comprises a tubular outer sleeve, a first anchor plate and a second anchor plate are separately arranged at two ends in the outer sleeve, and the inner diameter of the first anchor plate is greater than that of the second anchor plate. The second anchor plate is connected with a steel bar, and the outer sleeve, the first anchor plate and the second anchor plate form an anchor cup through threaded pairs. The outer sleeve is internallyprovided with an inner sleeve and springs, the outer diameter of the inner sleeve is less than the inner diameter of the outer sleeve, the outer diameter of the inner sleeve is greater than that of the first anchor plate, the springs are arranged at the ends of the inner sleeve, and the inner sleeve is tightened by the springs. An inner cavity of the inner sleeve is of an inner threaded structure, and the inner cavity is provided with an inner rotating shaft with outer threads, a threaded pair between the inner sleeve and the inner rotating shaft is a rectangular or trapezoidal threaded pair,and the inner rotating shaft is arranged on the end portion of the other steel bar. The prefabricated part self-locking type steel bar connecting machine overcomes the defects such as difficulty in inspection and acceptance of steel bar connection between prefabricated parts at present, fully realizes the mechanical connection of steel bars between the prefabricated parts, and ensures that the connection strength meets the first-level requirements.

Description

technical field [0001] The invention relates to the technical field of steel bar connection of prefabricated components, in particular to a prefabricated component self-locking steel bar connector. Background technique [0002] Concrete reinforced prefabricated structure is a construction method that is widely used in the construction field. In the prior art, the connection methods between prefabricated components are basically using connection boxes, connection sleeves or reserved hole grouting, etc. Direct connection forms have disadvantages such as high construction accuracy requirements or difficult detection. [0003] For example, a sleeve-type steel bar connector disclosed by the publication number CN 204492012 U fixes the steel bar by locking the pipe thread with a nut. Since the pipe thread clamps the steel bar through deformation during the locking process, in practical applications, although The connection speed is fast, but the connection accuracy is very poor, a...

AI Technical Summary

Problems solved by technology

[0002] Concrete reinforced prefabricated structure is a construction method widely used in the construction field. In the existing technology, the connection methods between the prefabricated components are basically using connection boxes, connection sleeves or reserved hole grouting, etc. Direct connection forms have disadvantages such as high construction accuracy requirements or difficult detection

[0003] For example, a sleeve-type steel bar connector disclosed by the publication number CN 204492012 U fixes the steel bar by locking the pipe thread with a nut. Since the pipe thread clamps the steel bar through deformation during the locking process, in practical applications, although The connection speed is fast, but the connection accuracy is very poor, and due to the difficulty in controlling the amount of deformation, it is completely unable to meet the requirements of construction projects that require high construction accuracy.

Images