Axial steel bar cold extrusion connecting structure

• Main Authors: DONG SHUAI, WANG WANGBING, FAN YAFENG, JIA YUNLONG, ZHANG XIAOLIAN, WAN YONG, PAN FEIYAN, DENG TAO, ZUO SHIBIN, ZHANG QIN, LIU YU
• Format: Patent
• Language: Chinese; English
• Published: 18.01.2022
• Subjects: BUILDING; BUILDING MATERIALS; FIXED CONSTRUCTIONS; STRUCTURAL ELEMENTS

The invention discloses an axial steel bar cold extrusion connecting structure. The axial steel bar cold extrusion connecting structure comprises a connecting sleeve and a connecting steel bar which are connected into a whole through extrusion. The connecting sleeve comprises an inner sleeve body and an outer sleeve body. The inner sleeve body is of a cylindrical structure and comprises an inner sleeve boss, an inner sleeve deformation area, an inner sleeve flange and an inner sleeve cone of a conical face structure. The outer sleeve body is arranged on the outer wall of the inner sleeve body in a sleeving manner and is in zero-clearance fit with the inner sleeve body. The outer sleeve body comprises an outer sleeve cone of a conical face structure. The connecting steel bar stretches into the inner sleeve body, and the fixed steel bar end is subjected to hardening heat treatment. According to the connecting sleeve, the metal plastic deformation principle is utilized, a professional pressing riveting tool is u