Positioning buckle push-rotation type unilateral bolt fastener

Abstract

The invention discloses a positioning buckle push-rotation type unilateral bolt fastener. The positioning buckle push-rotation type unilateral bolt fastener comprises a round head bolt, and a positioning buckle push-rotation type gasket assembly, a sleeve assembly, a gasket and a nut which are sequentially sleeved on the round head bolt in the axial direction, the positioning buckle push-rotation type gasket assembly comprises a gasket matching body and a plurality of positioning buckle push-rotation type gaskets evenly distributed in the circumferential direction of the gasket matching body, arc-shaped protrusions are arranged on the positioning buckle push-rotation type gaskets, the sleeve assembly comprises a sleeve body and a plurality of sleeve gaskets evenly distributed in the circumferential direction of the sleeve body, the sleeve gaskets are provided with arc-shaped grooves matched with the arc-shaped protrusions, and during fastening, the arc-shaped protrusions and the arc-shaped grooves are clamped in a concave-convex mode and synchronously turn outwards. According to the fastener, rapid and accurate unilateral fixed connection can be achieved through overturning movement of the multiple positioning buckle push-rotation type gaskets and the sleeve gaskets, the installation process is simple and reliable, disassembly is convenient, repeated use can be achieved, the mechanical property is good, and large bearing capacity can be borne.

Description

technical field [0001] The invention relates to the technical field of unilateral bolts, in particular to a positioning buckle push-and-turn unilateral bolt fastener. Background technique [0002] At present, in the field of civil engineering and mechanical installation, the installation demand for the connection and fastening of structural parts is increasing. But as far as the bolts commonly used at present are concerned, when the components are connected and fastened, the staff needs to work on both sides of the components at the same time, that is, insert the bolts with nuts on one side, and then use tools to tighten the nuts on the other side. Tighten. This connection and fastening method is simple in structure, easy to operate, and good in load, but it is only suitable for open section members. When it is fixed, this commonly used bolt and nut connection and fastening method cannot be used. For example: in the steel pipe structure and steel pipe concrete structure, ...

AI Technical Summary

Problems solved by technology

This connection and fastening method is simple in structure, easy to operate, and good in load, but it is only suitable for open section members. When it is fixed, it is impossible to use this commonly used bolt and nut connection fastening method

For example: in the steel pipe structure and the steel pipe concrete structure, at the joint of the beam column, because the steel pipe column is a closed section, it cannot be operated on both sides, and can only be connected and installed on one side, so this commonly used bolt and nut connection fastening method cannot be used For fast installation

At present, there is no corresponding unilateral bolt product in the domestic market, and the published related patents often weaken the bolt shank too much so that the mechanical properties are not ideal, or the installation is inconvenient: there are similar products in foreign markets.

However, it is expensive and difficult to be widely used in China, and it is difficult for this type of product to apply a large pre-tension force to the bolts during the installation stage to form a friction-type bolted joint. The comprehensive mechanical properties of the bearing are not ideal. heavily restricted in

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