Opened ratchet wrench

Abstract

The invention discloses an opened ratchet wrench and belongs to the technical field of machine manufacturing. The opened ratchet wrench is composed of a ratchet wheel, a handle, a ratchet pawl and an end cover. The ratchet wheel comprises a wrench opening, a boss and external teeth. The boss is circular, located on one side of the ratchet wheel and concentric with the ratchet wheel. The handle comprises a holding rod and a semi-ring body, the boss is sleeved with the semi-ring body, and the ratchet pawl is fixed between the holding rod and the semi-ring body of the handle. Internal teeth of the ratchet pawl are matched with the external teeth of the ratchet wheel, an opening is formed in the end cover, and the end cover is fixed to the outer side of the boss. During operating, the handling rod is held in the hand, the wrench opening of the ratchet wheel is clamped onto a nut, the handle is counterclockwise rotated, and at this moment, the internal teeth of the ratchet pawl and the external teeth of the ratchet wheel are in an adverse state and tightly engaged with each other to drive the ratchet wheel to screw the nut; and after being rotated by a certain angle, the handle needs to be rotated back to the original position, at this moment, only the ratchet pawl is driven by the handle to return back to the position, and the ratchet wheel does not move, so that the purpose that under the condition that the wrench opening does not leave the nut, the handle returns back to the original position is achieved. According to the opened ratchet wrench, the nut can be screwed or dismantled in a quick and labor-saving mode, and the property is reliable.

Description

technical field [0001] The invention belongs to the technical field of mechanical manufacturing and relates to a wrench. Background technique [0002] The existing open-end wrench is composed of a handle and a wrench. There is a wrench with a certain width at the wrench. The width of the wrench is slightly larger than the width of the nut to be screwed. When operating, hold the handle and clamp the wrench of the wrench on the nut. , turn the handle to tighten or remove the nut. There is a problem in the working process of this open-end wrench. After turning a certain angle, the wrench of the wrench head needs to be removed from the nut, and then returned to the original position to be stuck on the nut. Continue to rotate, and the operation is cumbersome and affects the working speed. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an open ratchet wrench, which can make the wrench of the wrench head return to the...

AI Technical Summary

Problems solved by technology

There is a problem in the working process of this kind of open-end wrench. After turning a certain angle, the wrench of the wrench head needs to be removed from the nut, and then returned to the original position to be stuck on the nut. Continue to turn, and the operation is cumbersome and affects the working speed.

Images