Ratchet screwdriver

Abstract

The invention discloses a ratchet screwdriver which comprises a screwdriver handle, a screwdriver frame and a ratchet mechanism. The screwdriver frame is used for mounting a screwdriver head, two grooves are symmetrically arranged at the rear of the screwdriver handle, outer ends of the two grooves are communicated with each other, two screwdriver rods are respectively disposed in the two grooves, inner ends of the screwdriver rods are hinged with inner walls of the grooves, a tail cover is connected to the tail end of the screwdriver handle, a button groove is arranged on the tail cover, a through hole is arranged on the bottom wall of the button groove, a button is arranged in the through hole in a clearance fit manner, the inner end of the button is connected with a support block, side walls of the support block are abutted with side walls of the inner ends of the two screwdriver rods, an elastic part is disposed at the inner end of the button, one end of the elastic part is abutted to the inner end surface of the button, and the other end of the elastic part is abutted to the inner wall of the screwdriver handle.

Description

technical field [0001] The invention relates to a hand tool, in particular to a ratchet screwdriver. Background technique [0002] Existing screwdrivers provide great convenience to people's lives, and are mainly used for fastening or loosening screws. The structure of the most common screwdriver in the prior art generally includes a screwdriver handle, a screwdriver shaft and a screwdriver head, and the screwdriver handle, screwdriver rod and screwdriver head are fixed in one piece. When the screwdriver is in use, it is necessary to continuously loosen and tighten the palm of the hand. , so that the palm can be rotated at a position where it is easy to apply force. When the palm is loosened or tightened, the screwdriver head is easy to detach from the screw, so the operation is very inconvenient. [0003] In order to solve the above problems, people have designed a ratchet screwdriver, such as an invention patent with an authorization announcement number of CN 201645375 U ...

AI Technical Summary

Problems solved by technology

[0004] However, the above ratchet wrench or common screwdriver need to spend a lot of effort to remove the rusted or firmly connected screws, so it is inconvenient to use; moreover, its function is single, and people often use it when maintaining machinery. To disassemble and assemble screws with the help of sleeves, it is necessary to use L-shaped booster rods that match the sleeves. Therefore, when people maintain machinery, they must carry additional booster rods in addition to screwdrivers and sleeves. and inconvenient to use

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