An emergency stop button switch

Abstract

The invention discloses an emergency stop button switch comprising a lower shell, a middle shell and an upper shell. A connecting rod is arranged inside the middle shell. The outer side of the connecting rod is sleeved with a button return spring. A button cap is fixedly connected above the connecting rod. First steel sheets are connected to both sides of the middle shell. Second steel sheets arefixedly connected on both sides above the connecting rod. Connection clamping seats are arranged on the outer sides of the second steel sheets and the inner sides of the upper shell. Torsion springs are mounted between the connection clamping seats. By slightly rotating the button cap, first and second clamping blocks are separated. Under the action of the button reset spring and a contact returnspring, the connecting rod is raised, normally closed contacts are closed, and the normal operation state is restored. The torsion springs are arranged to allow the second clamping blocks on the connecting rod to restore to the same vertical direction as the first clamping blocks. Support springs are arranged to increase the elasticity of the second steel sheets so that the first and second clampblocks can be firmly engaged for a long period of time.

Description

technical field [0001] The invention relates to the technical field of switches, in particular to an emergency stop button switch. Background technique [0002] The button is a commonly used control electrical component, which is often used to turn on or off the control circuit, so as to achieve a switch for the purpose of controlling the operation of the motor or other electrical equipment. The emergency stop button can also be called "emergency stop button", which is referred to as emergency stop button in the industry. As the name implies, the emergency stop button is a measure that people can quickly press this button to achieve protection when an emergency occurs. In various factories, eye-catching red buttons can be seen on some large and medium-sized machinery and equipment or electrical appliances. The standard ones should have red fonts that indicate the same meaning as "emergency stop". Such buttons may be collectively referred to as emergency stop buttons. The ...

AI Technical Summary

Problems solved by technology

[0003] The existing emergency stop button has poor reset ability and poor clamping effect. In order to keep the emergency stop button in a good working condition for a long time and bring safety to the production of the factory, a kind of Emergency stop button switch is necessary to solve the above problems

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