Rapidly-opened spanner

Abstract

The invention provides a rapidly-opened spanner capable of rapidly and continuously screwing or releasing a hexagon nut. The rapidly-opened spanner consists of a spanner head and a handle body; and arc-shaped working faces are respectively arranged at the left side and the right side in an opening of the spanner head, so as to contact two lateral planes of the hexagon nut. The bottom of the opening is provided with a concave arc-shaped face in contact with an angle below planes at the both lateral planes of the hexagon nut, so as to limit an inserting depth when the hexagon nut is clamped by the opening. The upper section of one arc-shaped working face in the opening is an outer inclined face, so that the entrance of the opening is widened and the spanner is easy to rapidly clamp. The lower section of the arc-shaped working face in the opening is the outer inclined face, so that a U-shaped opening which protrudes from the both sides to the middle in an arc-shaped manner is formed by the opening. Accordingly, when the hexagon nut is screwed or released, torsion of the spanner is not directly transmitted to the angle of the hexagon nut, so as to carry out the rapid continuous operation of clamping-twisting-exiting-resetting. Meanwhile, a 15-degree or 18-degree empty rotation remained position is arranged in the opening, so that when a dead angle exists in operations, the hexagon nut can exit in an empty rotation manner without driving to rotate, and is rapidly clamped without aligning the planes at the both sides of the hexagon nut. The rapidly-opened spanner provided by the invention has the advantages of simple structure and easiness for mass production.

Description

Technical field: [0001] The invention relates to a quick open-end wrench capable of quickly and continuously tightening or loosening hex nuts. Background technique: [0002] In actual operation, the traditional open-end wrench cannot continuously tighten or loosen the hexagon nut quickly and work in a narrow dead angle range, and damage the corner of the hexagon nut, resulting in premature discarding of the hexagon nut, which is not conducive to Resource saving, its main defect is that the opening of the traditional open-end wrench is U-shaped, and there is no room for maneuver in the opening. During operation, the torque is directly transmitted to the corner of the hex nut through the U-shaped opening, and rapid and continuous operation cannot be performed during the operation. , it is necessary to carry out the decomposition operation process of "alignment, jamming, twisting, withdrawing, re-aligning, and jamming reset" to the hex nut, so the work efficiency is not high. ...

AI Technical Summary

Problems solved by technology

[0002] In actual operation, the traditional open-end wrench cannot continuously tighten or loosen the hexagon nut quickly and work in a narrow dead angle range, and damage the corner of the hexagon nut, resulting in premature discarding of the hexagon nut, which is not conducive to Resource saving, its main defect is that the opening of the traditional open-end wrench is U-shaped, and there is no room for maneuver in the opening. During operation, the torque is directly transmitted to the corner of the hex nut through the U-shaped opening, and rapid and continuous operation cannot be performed during the operation. , it is necessary to disassemble the hexagonal nut by "aligning, locking, twisting, withdrawing, re-aligning, and locking again to reset", so the work efficiency is not high

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