HIGH-STRENGTH ONE-TOUCH REBAR COUPLER Russian patent published in 2018 - IPC E04C5/16 E04C5/18 

FIELD: valve production.

SUBSTANCE: high-strength one-touch rebar coupler comprises a coupler body having a hollow bushing formed in the longitudinal direction. Coupler body comprises a first coupling portion with a thread guide, having a plurality of first guide sloping portions, having the form of a spiral on the inner peripheral surface of the hollow bushing to provide a tension force to the reinforcing bar in a circumferential direction and inclined outwardly from the central portion of the hollow bushing to one side, and a second coupling portion for the guide helix having a plurality of second guide sloping portions, inclined outwards from the central portion of the hollow bushing to the opposite side. Coupling body also includes a first tightening section connected by a screw to the first coupling portion with a thread guide of the coupling body and inserted into the hollow bushing on one side, wherein the first tightening section comprises a plurality of first tightening elements, each provided with a first coupling portion with a tightening thread, having a first tightening slope formed on its outer peripheral surface so as to enable sliding engagement with each of the first slope guides and to provide a tension force to the reinforcing bar to be connected by moving in a direction opposite to the radial direction when the tensile force acts on the reinforcing bar, and a first gripping portion formed on its inner peripheral surface to grip the outer peripheral surface of the reinforcing bar; and a second tightening section connected by a screw to the second coupling portion with the thread guide of the coupling body and inserted into the hollow bushing on the other side, the second tightening section comprising a plurality of second tightening elements, each of which is provided with a second coupling portion with a tightening thread, having a second tightening slope formed on its outer peripheral surface so as to enable sliding engagement with each of the second slope guides and to provide a tension force on the reinforcing bar being connected by moving radially when the tensile force acts on the reinforcing bar, and a second gripping portion formed on its inner peripheral surface to grip the outer peripheral surface of the reinforcing bar.

EFFECT: high-strength one-touch rebar coupler is disclosed.

9 cl, 13 dwg