Butterfly valve limiting and locking structure

Abstract

The utility model belongs to the technical field of butterfly valves, and discloses a butterfly valve limiting and locking structure which comprises a valve body, an actuator is connected to the upper end of the valve body in an extending mode, a valve rod is rotationally connected to one side of the upper end of the actuator, a rotating wheel is fixedly installed at the end, away from the actuator, of the valve rod, and a linkage gear is fixedly installed on the outer wall of the side, close to the actuator, of the valve rod in a sleeving mode; the valve body, the actuator, the valve rod and the rotating wheel can form the butterfly valve main body, meanwhile, the control cutting and throttling effects on various fluids can be conveniently achieved, and the linkage gear, the rack, the movable square rod, the fixing plate, the screw rod piece, the first screwing block, the limiting rod, the limiting rotating assembly and the fine adjustment assembly are arranged in a matched mode; when the butterfly valve is used, the rotating wheel used for driving the state of the butterfly valve can be effectively limited and locked, so that the working state of the rotating wheel is prevented from being changed due to mistaken touch, and the use stability of the butterfly valve is guaranteed.

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