The pulse switch includes a protective anti-unlocking device, which has a protective cover inserted between a key and a key of a switch. It can be used in the support structure of the switch to protect the key-in part. Dust and the like

摘要

Push Button Switch which comprises a Support Structure of Box type is provided with at least one opening, a Drive Mechanism and means of mechanical coupling,A key that can be attached to the button and a Lock Protecting device, which comprises a protective Cap.