Watch crown screw knob bit

Abstract

The invention discloses a watch crown screw knob bit which comprises a bit body and a handle connected with the bit body, wherein a hollow cavity is formed in the handle, and the front end part of the bit body is provided with a cylindrical working end used for adsorbing a crown; the working end comprises an outer edge with a chamfer and inner walls which are uniformly distributed in a tooth shape, a platform which is sunken inwards is arranged in the middle of each inner wall, a vent hole communicated with the hollow cavity is formed in the middle of each platform, and a plurality of air passing holes are uniformly formed in the outer wall of the middle position of the handle in the circumferential direction; and the air passing holes are communicated with the hollow cavity. According to the watch crown screw knob bit, the tooth-shaped inner wall does not slip during locking, and appearance damage to a locked product is avoided.

Description

technical field [0001] The invention relates to the technical field of semi-automatic equipment, in particular to a watch crown screw knob bit. Background technique [0002] The crown, also known as the "handle" or "handle", the most common position on the watch is the outside of the three o'clock position. The side of the crown has uniform crown teeth, and the structure is fine. The disassembly tool, during the installation and disassembly process, because the watch crown knob is locked and slipped when it is aligned and tightened, the bit is easy to squeeze the crown knob. Contents of the invention [0003] The main technical problem to be solved by the present invention is to provide a screwdriver head for the crown of a watch. The inwardly recessed platform is in contact with the end of the crown. It helps to ensure that the force is even during the installation and removal of the crown, avoiding damage to the crown teeth, and will not cause cosmetic damage to the loc...

AI Technical Summary

Problems solved by technology

[0002] The crown, also known as the "handle" or "handle", the most common position on the watch is the outside of the three o'clock position. The side of the crown has uniform crown teeth, and the structure is fine. The disassembly tool, during the installation and disassembly process, because the crown knob of the watch is locked and slipped when it is aligned and tightened, the bit is easy to squeeze the crown knob.

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