Power tool and operation method for the power tool

A power tool, comprising:

• a housing;
• a motor arranged in the housing, the motor being configured to output a rotary force;
• an output shaft having a through hole configured to receive a first tool bit of a plurality of tool bits;
• a transmission arranged between the motor and the output shaft, the transmission being configured to transmit the rotary force output by the motor to the output shaft;
• a cartridge arranged in the housing, the cartridge comprising a tool chamber configured to receive the tool bits of the plurality of tool bits which are arranged in parallel;
• a connecting shaft configured to move axially between
• a working status wherein the connecting shaft is coupled with the first tool bit of the plurality of tool bits by passing through the tool chamber, and
• a release status wherein the connecting shaft is separated from the first tool bit of the plurality of tool bits;
• a restrictor arranged between the housing and the connecting shaft, the restrictor being configured to move between a first position and a second position;
• and
• a slider coupled with the housing, the restrictor and the connecting shaft,
• wherein
• the slider is configured to cause the restrictor to be moved between the first position and the second position based on a movement of the slider,
• the slider is configured to cause the connecting shaft to be moved between the working status and the release status based on the movement of the slider,
• the restrictor is configured to limit the movement of the connecting shaft in a direction away from the first tool bit of the plurality of tool bits if the restrictor is in the first position,
• the restrictor is configured to allow the connecting shaft to move in a direction away from the first tool bit of the plurality of tool bits so that the connecting shaft is located at the release status if the restrictor is in the second position, and
• the slider is configure to move along an axial direction of the connecting shaft to cause the connecting shaft to move axially.