Push-button safety covers prevent unauthorized use of push/pull and twist-release emergency equipment. It is made of high-strength glass gum PC, free of disassembly and easy to install. It is only necessary to install the base at the bottom of the emergency stop switch, which can be locked and removed at will. According to the reserved hole position of the lock, 2-4 safety padlocks with a lock beam diameter ≤ 7mm can be used to lock