| 摘要 |
<p>The present invention relates to a safety shutter of a vacuum circuit breaker, and more specifically, to a safety shutter of a vacuum circuit breaker which is installed on a cradle of the vacuum circuit breaker for extraction so as to protect the safety of a user from a charging unit by opening and closing upon the insertion or extraction of a circuit breaker body. According to an embodiment of the present invention, the safety shutter of the vacuum circuit breaker includes: a pair of operating levers of which one end are combined with a lower plate of the cradle to be rotatable, receives adhesive force from the circuit breaker body, and rotates; a pair of shutter guides which is formed as a board, is connected to the operating lever, and moves vertically; multiple shutter handles which are installed on the circuit breaker cradle to be rotatable and rotates along the motion of the shutter guide; a pair of shutter panels which is fixed on one end of the shutter handle, opens and closes the charging unit of the circuit breaker, and of which both sides are formed on a panel holder; and a pair of returning springs of which a lower side is combined with a part of the operating lever and elevates the shutter guide when the circuit breaker body is extracted. A side of the cradle is formed on a cam groove and moves the panel holder along the cam groove when the shutter panel is open and closed.</p> |
