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Ball valve

A ball valve and valve technology, applied in valve devices, cocks including cut-off devices, engine components, etc., can solve the problems of large driving force of ball valves, wear of ball valves, inconvenient operation, etc. Easy-to-use effects

Inactive Publication Date: 2011-05-18
陈红妹
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, most of the ball valves have a valve seat that matches the ball valve in the valve body. The ball valve slides on the seat wall to close the ball valve. In this way, there is sliding friction between the ball valve and the valve seat. After a period of time, the ball valve will Severe wear and tear can easily lead to air leakage and oil leakage, and the driving force required for the movement of the ball valve is relatively large, which is inconvenient to operate

Method used

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Embodiment Construction

[0012] Such as figure 1 As shown, a ball valve includes a valve body 1, a hollow truncated spheroid valve 2 and a valve stem 3 integrated with the valve 2, the valve stem 3 is fixed in the valve body 1 through a bearing 4, and the valve body 1 is provided with a The outlets 5 and 6 are provided with a groove 7 in the valve body 1 on the side of the inlet 5, and a valve seat 10 matching the valve 2 is fixed in the groove 7, and a valve seat 10 is also provided between the valve seat 10 and the valve 2. Gasket 9, in order to further increase the tightness between the valve 2 and the valve seat 10, an elastic gasket 9 is set between the valve seat 10 and the groove 7; for the convenience of installation of the valve of the truncated sphere, the truncated sphere is designed as a whole 1 / 3 of a sphere.

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Abstract

The invention relates to a ball valve, which comprises a valve body, a valve gate and a valve rod, wherein the valve rod is fixed in the valve body through a bearing; and an inlet and an outlet are formed on the valve body. The ball valve is characterized in that: the valve gate is a hollow truncated sphere; the valve gate and the valve rod are integrated into a whole; a groove is formed in the valve body close to the inlet; a valve seat matched with the valve gate is fixed in the groove; and a sealing gasket is arranged between the valve seat and the valve gate. The ball valve has the advantage that: the ball valve is convenient to operate and has good sealing property and long service life.

Description

technical field [0001] The invention relates to a ball valve. Background technique [0002] At present, most of the ball valves have a valve seat that matches the ball valve in the valve body. The ball valve slides on the seat wall to close the ball valve. In this way, there is sliding friction between the ball valve and the valve seat. After a period of time, the ball valve will Severe wear and tear can easily lead to air leakage and oil leakage, and the driving force required for the movement of the ball valve is relatively large, which is inconvenient to operate. Contents of the invention [0003] The object of the present invention is to provide a ball valve with convenient operation, good sealing performance and long service life. [0004] The technical solution adopted in the present invention is: a ball valve, including a valve body, a valve and a valve stem, the valve stem is fixed in the valve body through a bearing, the valve body is provided with an inlet and o...

Claims

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Application Information

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IPC IPC(8): F16K5/06F16K5/20
Inventor 陈红妹
Owner 陈红妹