Protection device for locking ship pipeline valve disc

The invention relates to a protection device for locking a ship pipeline valve disc, which comprises two housings, a rotating part and a housing lock, the two housings are buckled to form a protection cover, one end of the buckling position of the two housings is rotatably connected through the rotating part, and the other end of the buckling position of the two housings is connected with the housing lock. And a valve disc of the ship pipeline valve is arranged in the protective cover. According to the protection device for locking the ship pipeline valve disc, it is simply and effectively guaranteed that a pipeline valve piece cannot be opened or closed accidentally, safety accidents caused by misoperation or accidental collision of personnel are avoided, and the field work safety is improved. And the device is simple to manufacture, convenient to operate, relatively low in cost, relatively light, reusable, very low in field requirement and relatively high in applicability. 本发明涉及一种用于船舶管路阀盘锁定的保护装置，包括两个罩壳、转动部、