Manual and automatic integrated screwdriver

Abstract

The invention provides a manual and automatic integrated screwdriver. The manual and automatic integrated screwdriver comprises a shell and a motor arranged in the shell. A manual switching mechanismis arranged between the front end of the shell and the motor. The manual switching mechanism comprises an output shaft, a bearing block, a plurality of pins and a driving disk. One end of the output shaft is arranged into a prismoid structure. The output shaft is sleeved with the bearing block, and the bearing block is fixedly connected with the shell. The pins are attached between the prismoid structure and the bearing block and are attached to the prismatic surfaces of the prismoid structure. The diameter of each pin is equal to the maximum vertical distance from the inner wall of the bearing block to the corresponding prismatic surface of the prismoid structure. The driving disk is arranged on a motor shaft of the motor and is embedded in the bearing block. The driving disk is providedwith through holes corresponding to the pins. The pins are inserted into the through holes. The manual and automatic integrated screwdriver can achieve the manual and automatic integration function, can lock the output shaft and the shell in lack of a power supply, cannot drive the motor to rotate and can protect the motor against damage. A traditional one-way valve is omitted, the size of the screwdriver is reduced, and thus, the screwdriver is convenient to carry, operate and use.

Description

technical field [0001] The invention relates to the technical field of electric tools, in particular to a manual and automatic integrated screwdriver. Background technique [0002] An electric screwdriver is an electric tool equipped with a mechanism for adjusting and limiting torque, which is used for tightening and loosening screws. This power tool is mainly used in assembly lines and is one of the necessary tools for most production companies. However, conventional small electric screwdrivers generally cannot be used manually without electricity. When using manually, the output shaft of the screwdriver is in an active and non-locked state. [0003] The prior art also involves some self-integrated screwdrivers, which generally use a one-way valve to limit the position to realize the function of the one-way unit, but the large outer diameter of the one-way valve leads to its bulky volume, making the overall volume and outer diameter of the screwdriver product Also larger,...

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