Ball valve

Abstract

The invention discloses a ball valve, and relates to a vibration reduction ball valve. The ball valve is characterized in that the ball valve comprises a valve body; the valve body is internally provided with a valve rod and a valve core sphere that is in linkage matching with the valve rod; the valve rod is connected with a manual actuator in a linkage manner; the valve body is provided with valve seats tightly fit with the valve core sphere at an access passage and an outflow passage; the valve seats is L-shaped; each valve seat comprises a push-against part and an insertion and connection part that are connected sequentially; the insertion and connection parts stretch into the valve seats; the valve body is internally provided with placement holes; the placement holes are internally provided with elastic elements which are connected with the push-against parts of the valve seats in a push-against manner; sealing rings are arranged between the insertion and connection parts and the valve body; grooves are formed in the connecting parts, where the valve seats are connected with the valve core sphere, of the valve seats; and the grooves are internally provided with soft sealing elements. The soft sealing elements, the elastic elements and the sealing rings in the ball valve can exert vibration reduction effects on the collision between the valve seats and the valve core sphere, and the situation that the sealability is reduced due to the fact that the valve core sphere collides with the valve seats when the ball valve is in a vibration working environment can be avoided effectively.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to a ball valve. Background technique [0002] At present, the ball valve has been widely used in various pipelines. The ball valve includes a manual actuator and a valve body. There is an inlet channel for the medium to enter and an outflow channel for the medium to flow out. However, some ball valves in the prior art are generally installed on some industrial lands, and the working environment has frequent vibrations. Due to the close fit between the ball and the valve seat in the ball valve, when the ball valve works in a vibrating environment for a long time, a slight rigid collision between the ball and the valve seat is prone to occur, and if things go on like this, the rigid collision will wear the ball And the sealing surface of the valve seat, resulting in a decline in the sealing performance of the ball valve, prone to leakage, so there is still room for improvement. C...

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