A pull-out combination button switch with a preload stroke locking mechanism

Abstract

The invention provides a pull-out combined push-button switch with a pre-pressing stroke locking mechanism, which includes a drawing mechanism, a locking mechanism, a pre-pressing stroke mechanism and a contact mechanism; the lower position inside the drawing mechanism is in order from top to bottom A fixed locking mechanism, a pre-pressing stroke mechanism and a contact mechanism; the locking mechanism includes a positioning sleeve and a steel ball, the positioning sleeve is provided with two sets of symmetrically arranged upper and lower locking grooves, and the handle of the pulling mechanism corresponds to the upper locking groove on the positioning sleeve There are grooves in the position. Through the structural arrangement of the locking mechanism and the pre-pressing stroke mechanism, the invention can effectively solve the drawbacks of easy wear, poor reliability, short life, etc., the structure design is concise, the locking is reliable, the service life is long, and the pre-pressing stroke of the switch can be effectively increased. , not only can the contact mechanism of the switch realize self-adjustment, but also can effectively prevent the possibility of the switch from accidentally hitting the switch by external force and cause the switch to malfunction, ensuring the reliability of the switch operation.

Description

technical field [0001] The invention relates to a pull-out combination button switch with a pre-press stroke locking mechanism, which belongs to the technical field of button switches. Background technique [0002] The push button switch is a switch that drives the internal contact conversion by the driving force on the same line as the push button stroke. It is an important component in the console and panel control system or power supply system of various instruments, meters, electromechanical equipment; its characteristic is that the instrument or control system often needs to work continuously, so the switch must have a locking function to achieve this requirement. And the requirements for switch locking reliability and locking life times are very high. [0003] At present, two kinds of self-locking mechanisms, lock plate and cam sleeve, are generally used. These two kinds of self-locking mechanisms are owing to complex structure, mold forming difficulty, and its mater...

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