Abstract: A ratchet tool includes a drive shaft rotating about a first axis; a ratcheting mechanism driven by the drive shaft; a trigger switch, where a motor corresponds to different output rotational speeds according to different trigger strokes of the trigger switch; a human-machine interaction assembly coupled to a controller; and a controller configured to adjust, according to a setting of the human-machine interaction assembly, an output rotational speed or a range of output rotational speeds of the motor when the trigger switch has a maximum trigger stroke.

Abstract: A nail gun includes: a housing formed with an accommodating space; a cylinder; a firing assembly capable of moving from an initial position to a firing position; a power output assembly disposed in the accommodating space and used for outputting a driving force; and a drive wheel connected to an output shaft of the power output assembly and used for driving, under the drive of the power output assembly, the firing assembly to move. The drive wheel has a first drive tooth and second drive teeth, the radius of the addendum circle of the first drive tooth is less than the radius of the addendum circle of a second drive tooth, the first drive tooth is a drive tooth disposed at a start end of the drive wheel, and the first drive tooth meshes with the firing assembly when the drive wheel starts driving the firing assembly to reset.

Abstract: A power tool includes a casing, an output mechanism, a motor, a leadscrew, a rotation assembly, a radial transmission assembly, an axial transmission assembly, and a torque transmission portion. The leadscrew extends along a front-and-back direction and is connected to the output mechanism. The rotation assembly is connected to the motor and is driven by the motor to rotate around the leadscrew. The radial transmission assembly is driven by the rotation assembly to rotate. The axial transmission assembly is separately connected to the radial transmission assembly and the leadscrew in a rotation manner and is configured to drive the leadscrew to move along an axial direction of the leadscrew. The torque transmission portion is disposed between the radial transmission assembly and the axial transmission assembly and is configured to transmit torque and cause the axial transmission assembly and the radial transmission assembly to rotate synchronously.

Abstract: A power tool includes a casing, an output mechanism, a motor, a leadscrew, a rotation assembly, a radial transmission assembly, an axial transmission assembly, and a torque transmission portion. The leadscrew extends along a front-and-back direction and is connected to the output mechanism. The rotation assembly is connected to the motor and is driven by the motor to rotate around the leadscrew. The radial transmission assembly is driven by the rotation assembly to rotate. The axial transmission assembly is separately connected to the radial transmission assembly and the leadscrew in a rotation manner and is configured to drive the leadscrew to move along an axial direction of the leadscrew. The torque transmission portion is disposed between the radial transmission assembly and the axial transmission assembly and is configured to transmit torque and cause the axial transmission assembly and the radial transmission assembly to rotate synchronously.