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Sealing ball valve

A technology for sealing ball valves and sealing rings, applied in the field of sealing ball valves, can solve problems such as ball valve leakage, achieve the effects of enhancing the sealing effect, improving the sealing effect, and prolonging the service life

Pending Publication Date: 2018-04-20
西安日日昕生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a sealed ball valve, which solves the problem of leakage of the ball valve caused by the wear of the valve core ball and the sealing ring

Method used

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  • Sealing ball valve
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Embodiment Construction

[0030] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0031] Refer below Figure 1 to Figure 7 The present invention is further described, as figure 1 A sealing ball valve shown includes a valve body 20 and a valve core ball 10. The right end of the valve body 20 is provided with a fourth hole 27, the second connecting pipe 30 is connected to the fourth hole 27, and the valve core ball 10 is arranged on the valve body. In the valve cavity 28 of the body 20, the sealed ball valve also includes a sealing ring 40 and a compression ring 50, the sealing ring 40 is arranged between the valve core ball 10 and the valve body 20, and the compression ring 50 is arranged in the first hole of the valve body 20 21 and is pressed against the flange 70c of the first frame 70 of the sealing ring 40, the above-mention...

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Abstract

The invention provides a sealing ball valve comprising a valve body and a valve core ball. The valve core ball is arranged in a valve cavity of the valve body; and the sealing ball valve also comprises a sealing ring and a hold-down ring, the sealing ring is arranged between the valve core ball and the valve body, and the hold-down ring is arranged in a first hole of the valve body and presses against a flange of a first framework of the sealing ring. According to the sealing ball valve, the sealing effect of the sealing ring can be enhanced by the multi-lip setting of the sealing ring, the first framework is under the action of the hold-down ring, a tilting plate compresses a first lip, the sealing effect of the sealing ring can be enhanced, and the leakproofness between the sealing ringand the valve core ball can be enhanced by the setting of a spiral spring; in addition, the gap caused by the abrasion between the sealing rig and the valve core ball can be compensated by the tiltingplate compressing the first lip and the elastic force of the spiral spring, the leakproofness between the sealing ring and the valve core ball is maintained, and then the purpose of prolonging the service life of a ball valve is achieved.

Description

technical field [0001] The invention relates to the field of valves, in particular to a sealed ball valve. Background technique [0002] The ball valve is defined in the standard GB / T21465-2008 "Valve Terminology" as: a valve whose opening and closing part (ball) is driven by the valve stem and rotates around the axis of the ball valve. [0003] Chinese patent 201610040710.6 discloses a ball valve. In order to ensure the sealing effect of the ball valve, a second sealing groove is opened in the valve body, and the second sealing ring installed in the second sealing groove is in contact with the surface of the valve core ball. , there is a third sealing groove in the valve seat, the third sealing ring installed in the third sealing groove is in contact with the surface of the valve core ball, through the cooperation between the second sealing ring, the third sealing ring and the valve core ball , thus ensuring the sealing effect of the ball valve. However, during the rotati...

Claims

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Application Information

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IPC IPC(8): F16K5/06F16K5/20F16J15/3232F16J15/3208
CPCF16J15/3208F16J15/3232F16K5/06F16K5/201
Inventor 陈海燕
Owner 西安日日昕生物科技有限公司
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