Manual and electric switching device and electric actuating mechanism

Abstract

The invention belongs to the technical field of electric actuating mechanisms, and discloses a manual and electric switching device which comprises an electric actuator and a switching mechanism, wherein the switching mechanism is mounted on the electric actuator and comprises a fixing frame, a hand wheel, a worm shaft and a positioning assembly, the worm shaft is mounted in the electric actuator; the hand wheel is connected onto the fixing frame; the positioning assembly is used for being connected with the hand wheel and the worm shaft, the movable rod is installed in the channel, one end of the movable rod is fixedly connected with the sliding block, and the positioning shaft is installed in the clamping head. Through cooperation of the movable rod, the sliding block, the channel, clamping claws and the like, the two clamping jaws can be opened outwards and clamped in the positioning grooves, so that the clamping heads can be locked in the clamping grooves, rapid positioning connection of the hand wheel and the worm shaft can be achieved, the locking state can be rapidly contacted by pulling the movable rod outwards, switching is efficient and stable, and the using effect is extremely good.

Description

technical field [0001] The invention belongs to the technical field of electric actuators, and in particular relates to a manual electric switching device and an electric actuator. Background technique [0002] The broadest definition of an actuator is a drive device that can provide linear or rotary motion. It uses some kind of driving energy and works under the action of a certain control signal. The actuator uses liquid, gas, electricity or other energy and passes Motors, cylinders or other devices convert it into driving action. The basic actuator is used to drive the valve to the fully open or fully closed position. In some dangerous situations, the automatic actuator device can reduce personnel injuries. [0003] At present, the electric actuators on the market will be equipped with a hand-operated switching device, through which the valve switch can be manually operated when the electric drive mechanism fails or the power is cut off, so as to ensure the normal operati...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a hand-electric switching device and an electric actuator to solve the problem that it is difficult to quickly and accurately locate the hand wheel and the worm shaft in the above-mentioned background technology, which affects safety.

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