Extruded steel bar straight thread connecting sleeve

Abstract

The invention discloses an extruded steel bar straight thread connecting sleeve, which comprises two parts, namely an inner steel sleeve and an outer steel sleeve, wherein the upper part and the middle part of the inner steel sleeve are cut into 4 to 12 steel sections and are hollow inverted truncated cones, and the lower part of the inner steel sleeve is connected into a whole and has an inverted truncated cone shape or a cylindrical shape; screw threads are wholly sleeved on an inner side of the inner steel sleeve and are used for meshing with steel bars; an inner side of the outer steel sleeve is a truncated cone surface which has the same slope as that of the outer side of the middle part of the inner steel sleeve; and the upper half part of the outer side of the outer steel sleeve is a truncated cone, and the lower half part of the outer side of the outer steel sleeve has an inverted truncated cone shape or a cylindrical shape. By the steel bar straight thread connecting sleeve, the steel bars can be rapidly and conveniently connected, the connecting quality is effectively guaranteed, and connecting operation can be performed in a small space.

Description

technical field [0001] The invention relates to a steel bar mechanical connection joint in construction engineering, in particular to an extruded steel bar straight thread connection sleeve. Background technique [0002] At present, the mechanical connection of steel bars in construction projects is mostly straight thread sleeve connection, and the operation is divided into straight steel bar connection and curved steel bar connection. [0003] The connection of straight steel bars is to tighten the straight thread sleeve on a steel bar with a threaded buckle first with a wrench, and then tighten the other steel bar with a threaded buckle with a wrench to the other end of the sleeve to realize the connection of two steel bars . The disadvantage of this connection method is that it takes more time to connect, and it is very inconvenient to operate when the diameter of the steel bar is large and the length is long. [0004] When connecting rebars with turns, since there are ...

AI Technical Summary

Problems solved by technology

The disadvantage of this connection method is that it takes more time to connect, and it is very inconvenient to operate when the diameter of the steel bar is large and the length is long.

[0004] When connecting rebars with turns, since there are rebars in the reinforcement cage that cannot be rotated, it is necessary to use a straight-threaded sleeve with positive and negative buckles, that is, to directly rotate the sleeve to tighten the two rebars at the same time, but this connection method is prone to one tightening. One untightened case, so engineering quality cannot be guaranteed

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