Check ball valve

Abstract

The invention discloses a check ball valve. The check ball valve comprises a valve body, a check body, a valve rod, a handle and a valve core, wherein the valve core is mounted in the valve body; thecheck body is welded to a flow channel of the valve core; the valve core is coaxially connected with the valve rod; and the handle is mounted coaxially on the valve rod in a sleeving manner, so that control of flow of a medium in the valve is realized through adjustment of the handle, and backflow of the medium is prevented through the check valve; the check body comprises a connector, a fixed valve disc, a movable valve disc and a connecting bolt; the connector, the fixed valve disc, the movable valve disc and the connecting bolt are sequentially arranged in the flowing direction of the flowchannel; a connector bolt hole is formed in the center of the connector; a movable valve disc through hole is formed in the center of the movable valve disc; the connecting bolt passes through the movable valve disc through hole of the movable valve disc and is connected with the interior of the connector bolt hole of the connector, so that the movable valve disc and the connector are fixedly andintegrally connected. The check ball valve disclosed by the invention has the advantages that the functions of adjustment and check are integrated, so that the damage problem of the equipment caused by the backflow of pipelines during operation can be effectively solved, and the sizes of the pipelines are also greatly reduced at the same time.

Description

technical field [0001] The invention relates to a valve structure, in particular to a check ball valve. Background technique [0002] The ball valve is a more commonly used regulating valve in the fluid pipeline transmission system, which plays the role of opening and closing, regulating and changing the flow direction of the medium in the pipeline. Widely used in aerospace, petrochemical, water conservancy and hydropower and other fields. The spool of the ball valve is a sphere with a cylindrical channel, the sphere is controlled by the valve stem, and the valve stem rotates 0-90° to drive the sphere to rotate, thus realizing the function of the ball valve. Ball valves have a wide range of applications and are often used in complex working environments. Backflow problems often occur in pipelines. Medium backflow occurs when the valve is working, which can easily cause damage to components in the pipeline and reduce the use of pipeline systems. life. The general ball valv...

AI Technical Summary

Problems solved by technology

Ball valves have a wide range of applications and are often used in complex working environments. Backflow problems often occur in pipelines. Medium backflow occurs when the valve is working, which can easily cause damage to components in the pipeline and reduce the use of pipeline systems. life

The general ball valve can only control the flow of the medium, but cannot solve the problem of medium backflow. In order to solve the impact caused by the backflow, check valves and ball valves are generally used together, which increases the volume of the pipeline system.

Images