A new type of self-locking mechanism

Abstract

The present invention provides a novel self-locking mechanism. The novel self-locking mechanism comprises a sleeve, a push rod, a buttonhole stitch and a reset piece. The push rod is slidingly connected with the inner wall of the sleeve, and the reset piece is arranged between the sleeve and the push rod. The novel self-locking mechanism is characterized in that: the buttonhole stitch is arranged on the push rod, the push rod is configured to restrict the axial displacement of the buttonhole stitch and is able to guide the circumference direction displacement of the buttonhole stitch, and a groove is arranged at the inner wall of the sleeve; and the buttonhole stitch slides with the push rod in the sleeve and moves in the groove to realize the locking and releasing of the buttonhole stitch. The novel self-locking mechanism is reliable in self locking, smooth in operation, long in mechanical life, simple in mechanism and convenient in installation.

Description

technical field [0001] The invention relates to the field of self-locking button switches, in particular to a self-locking mechanism of the self-locking button switch. Background technique [0002] The self-locking button switch refers to a switch with a mechanical locking function, which is widely used in command signal equipment. This command signal device is used in machines or electrical equipment to control the operation of machines and equipment. Most pushbutton switches are used to make or break a circuit when pressed, and the state is restored when released. In order to maintain the "pressed" state, a self-locking mechanism is added to the switch. The self-locking mechanism controls the moving contact and the static contact to keep on or off to realize the circuit switching switch, so as to meet the performance requirements. [0003] There are many kinds of self-locking mechanisms, and the most used one is to use a locking pin to enter a groove, and then pass thro...

AI Technical Summary

Problems solved by technology

And because the lock bar is only limited at both ends, and there is no restriction on the long section in the middle, it will cause great uncertainty in the deformation of the lock bar. Since the lock bar slides in the groove, there is a certain friction force. Uncertainty in deformation may cause skipping of the lock lever, especially in the axial direction of the lock lever, that is, the displacement of the lock lever in the axial direction, resulting in unreliable self-locking of the button, jamming during operation, and poor operating feel. Not smooth, etc., affecting the mechanical life of the button and product quality

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