| 摘要 |
An elevator fire operation switch comprises: a body installed in a car inner operation panel of an elevator, has a through-hole penetrated in a longitudinal direction, and has an inlet groove on an outer face; a case fitted into the inlet groove of the body, and has a polygonal hole penetrated to communicate with the through-hole; a limit switch coupled to one end of the body; a plug inserted to a polygonal hole of the case and the through-hole of the body is key-rotated, coupled integrally with the case to rotate, and is fixed to the through-hole of the body to rotate; and a cam coupled to one side of the plug, and a limit switch turned on or off while rotating integrally with the plug. An effect of the present invention is to provide the elevator fire operation switch, wherein a ball placement groove in which one or more key fixing balls are placed is formed outside of an inner circumferential face of the inlet groove of the body; a discharge hole penetrated and formed on a position in correspondence to the ball placement groove in the case to discharge the key fixing ball; the key fixing ball discharged to the discharge hole when rotating the key in a state where the key fixing ball is placed in the ball fixing groove; the key is kept in a state of being held and fitted to the discharge hole; and the limit switch continuously kept on. |
