Ball valve with rotation protection mechanism

Abstract

A ball valve with a rotation protection mechanism comprises a valve body, a ball body and a valve rod. The two sides of the valve body are each provided with a first connecting flange, a second connecting flange is arranged at the top of the valve body, the second connecting flange is connected with a valve seat through a first fastening bolt, the ball body is arranged in the valve body, a throughhole is formed in the ball body, a fixing hole is formed in the top of the ball body, the fixing hole is provided with multiple limiting grooves, the bottom of the fixing hole is connected with a bearing inner ring through a spring, the bearing inner ring is rotatably connected with a bearing outer ring through a plurality of bearing rotating shafts, the bearing outer ring is fixedly connected with the bottom of the valve rod, a plurality of limiting blocks are arranged on the valve rod, the valve rod is sleeved with a limiting sleeve, the limiting sleeve is fixedly connected with the top ofthe ball body through a third fastening bolt, and a handle is arranged at the top of the valve rod. By adoption of the structure, the situation that the valve handle is rotated because the valve is touched by mistake so as to change the opening and closing state of the valve is avoided, the safety of the ball valve body is improved, and the whole device is simple in structure, convenient to operate and high in practicability.

Description

technical field [0001] The invention relates to the field of valves, in particular to a ball valve with a rotation protection mechanism. Background technique [0002] In the transportation system of various fluids such as water body, oil body, chemical liquid, etc., valves are widely used as important control components. Pressure relief and many other functions, which are divided into different valve varieties and specifications. Ball valve is a widely used variety of valves. Ball valves can be seen in large and small places in life, but there is a problem with the ball valve itself, that is, it is not strong, it is convenient to control, and it is easy to be mistaken by hand. Collision with the valve handle changes the opening and closing state of the ball valve, thereby changing the state of the fluid in the pipeline. When encountering a valve used as a pipeline for dangerous fluids, it may even cause a safety accident. Contents of the invention [0003] The technical ...

AI Technical Summary

Problems solved by technology

Ball valve is a widely used variety of valves. Ball valves can be seen in large and small places in life, but there is a problem with the ball valve itself, that is, it is not strong, it is convenient to control, and it is easy to be mistaken by hand. Collision with the valve handle changes the opening and closing state of the ball valve, thereby changing the state of the fluid in the pipeline. When encountering a valve used as a pipeline for dangerous fluids, it may cause a more serious safety accident

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