A kind of forged steel soft seal floating ball valve

Abstract

The invention discloses a forged steel soft-sealed floating ball valve, which relates to the field of ball valves and comprises a valve body, in which a flow passage is opened through the valve body, and a valve ball is rotatably connected to the valve body in the flow passage, and a valve hole is opened through the valve ball; The valve body is also rotatably connected with a rotating sleeve, which is elastically and telescopically provided with a transmission rod for plugging and driving with the valve ball. Stem handle. Aiming at the problem in the prior art that it is easy to accidentally touch the hand valve to cause the flow limit of the floating ball valve to change, the present invention sets the transmission rod elastically. Only when the transmission rod is pressed down, the transmission rod is connected with the valve ball in transmission, and the flow rate is adjusted. The transmission rod shrinks to the valve ball. In the body, the rotation of the rotating sleeve cannot drive the valve ball to rotate, which effectively avoids the occurrence of accidental contact.

Description

technical field [0001] The invention relates to the field of ball valves, in particular to a forged steel soft-sealed floating ball valve. Background technique [0002] The ball of the ball valve is floating. Under the action of medium pressure, the ball can produce a certain displacement and press tightly on the sealing surface of the outlet end to ensure the seal of the outlet end. The floating ball valve has a simple structure and good sealing performance. [0003] For the existing floating ball valve structure, such as the Chinese patent with the patent publication number CN206874866U, it discloses a floating ball valve with a locking device, including a floating ball valve body, a locking disc is installed on the top of the floating ball valve body, and the locking disc A top nut is installed above the top nut, a hand valve is set above the top nut, a valve stem is embedded on the locking plate, packing is set on both sides of the valve stem, and a floating ball spool ...

AI Technical Summary

Problems solved by technology

[0004] When the above patents are used, in order to facilitate management and prevent unrelated personnel from arbitrarily adjusting the floating ball valve, the floating ball valves on the pipeline are often arranged in a control box. Since each floating ball valve is fixed with a hand valve, and the rotation of the hand valve The angles are often different (the flow rate requirements in different pipelines are different). During the maintenance process, maintenance personnel often touch the hand valve by mistake, which will cause changes in the flow rate controlled by the floating ball valve, and it is very difficult to restore the original state.

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