Dustproof structure of hand tool

Abstract

A dustproof structure of a hand tool includes a tool body and a dustproof element. The tool body has a shank. A predetermined portion of the shank is concavely provided with a through hole. The dustproof element is flexible, is provided at the through hole of the shank, and can be opened and closed. The dustproof element closes the through hole when not subjected to an applied force and is elastically deformed to render the through hole into an open state when subjected to the applied force. In normal conditions, therefore, the dustproof element can block foreign matter from entering the through hole. When it is desired to perform a lubricating or adjusting operation on a component in the through hole of the hand tool, the operation can be carried out after directly applying a force to, and thus deforming, the dustproof portion, without having the dustproof element removed.

Dependencies are inferred from the claim text.