TWO-STAGE LOCKING ELECTRIC SCREWDRIVER

摘要

A two-stage locking electric screwdriver, with its main improved features as follow: the electric screwdriver has pre-locking and locking functions; the torque settings of the electric screwdriver can be easily modulated, and meanwhile the torque accuracy and energy efficiency can be improved; the torque modulation type is external modulation, so that the torque modulation can be carried out externally and even the torsion spring can be replaced. Meanwhile, the component structures inside the electric screwdriver is improved through a design that the motor directly drives the clutch and then drive the screwdriver head unit, and that an internal gear clutch is used to replaced the gear unit and clutch unit, so that the number of parts is dramatically reduced to save production cost. During general rotation, the electric screwdriver will not drive the clutch unit, and when the torque jumps to the set value, the internal gear clutch rotates and generates a torque.

主权项

1. A two-stage locking electric screwdriver comprises a matching external enclosure, and inside the enclosure there are at least:
a motor unit, to provide power source; a clutch unit, coupled with and driven by the motor, the clutch unit has power transmission and speed shifting functions, and can provide two-stage torque output; a screwdriver head unit, driven by the clutch unit, and can be fitted with various screwdriver heads; a trigger unit, to control the starting of the motor of the electric screwdriver, and meanwhile has a function to avoid button reset; and a controller unit, with a built-in micro-controller unit (MCU) panel, and a power source to supply required power.