Bidirectional self-tightening hexagonal sleeve

Abstract

The invention relates to the technical field of hardware tools, in particular to a bidirectional self-tightening hexagonal sleeve which comprises a sleeve body, a self-tightening unit set and an adjusting mechanism. Two self-tightening unit sets are arranged in the sleeve body in a mirror image mode, and each self-tightening unit set comprises three self-tightening units. The self-tightening unit comprises a radial sliding block, a sliding block spring, a clamping jaw and a clamping jaw spring. The sliding block springs are used for keeping the radial sliding blocks away from the center of the sleeve body; the clamping jaws can be away from or close to the center of the sleeve body when sliding relative to the radial sliding blocks. The claw spring is used for keeping the claw away from the center of the sleeve body; the adjusting mechanism comprises an adjusting ring, and when the adjusting ring rotates relative to the sleeve body, the radial sliding blocks of the two self-tightening unit sets can alternately get close to the center of the sleeve body. According to the two-way self-tightening hexagonal sleeve, two-way screwing of a threaded fastener is achieved through the two self-tightening unit sets arranged in the mirror image mode, the occupied space is small, carrying and storage are convenient, cost is low, and the screwing direction can be conveniently and rapidly switched.

Description

technical field [0001] The invention relates to the technical field of hardware tools, in particular to a bidirectional self-tightening hexagonal sleeve. Background technique [0002] Hexagon sockets are used for fastening or dismantling of external hexagon threaded fasteners (such as external hexagon bolts and hexagon nuts). After the head of the threaded fastener is worn, the hexagonal socket and the head of the threaded fastener will slip, making it difficult to Tighten the threaded fasteners. [0003] CN202622626U discloses a multifunctional threaded fastener sleeve, comprising a cylinder body and a sleeve hole arranged at the end of the cylinder body for correspondingly matching with the threaded fastener, and more than two holes are provided on the hole wall of the sleeve hole The eccentric arc grooves are deviated from the center line of the cylinder. Each eccentric arc groove is movably equipped with an eccentric slider that guides and moves along the arc surface of...

AI Technical Summary

Problems solved by technology

[0002] The hexagonal socket is used for fastening or dismounting of the external hexagonal threaded fasteners (such as external hexagonal bolts, hexagonal nuts). After the head of the threaded fastener is worn, it will cause the hexagonal socket and the head of the threaded fastener to slip, making it difficult to Twist threaded fasteners

However, the threaded fastener sleeve can only twist the threaded fastener in one direction. If the threaded fastener is to be twisted in two directions, two kinds of threaded fasteners that can be screwed clockwise and counterclockwise respectively need to be used. The sleeves are used in pairs, which not only takes up a lot of space, is not easy to carry and store, but also costs more

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