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Ball valve seat

A technology for valve seats and ball valves, applied to valve devices, cocks including cut-off devices, engine components, etc., can solve the problems of difficult valve installation, low assembly efficiency, and inconvenient maintenance, and achieve high assembly efficiency, slow assembly efficiency, and low assembly time. fast effect

Inactive Publication Date: 2016-07-27
ZHONGYU VALVE COMPONENTS SUZHOU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This structure is affected by the uneven force of the installation tooling and the valve seat, which makes the valve installation difficult, maintenance inconvenient, and assembly efficiency low

Method used

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  • Ball valve seat
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Embodiment Construction

[0016] Hereinafter, the present invention will be described in detail with reference to the drawings and embodiments.

[0017] See figure 1 , figure 2 As shown, a ball valve seat, quick installation and disassembly of top-mounted seat, valve seat (1), valve body (2), designed as an arc surface, passing between the valve seat (1) and the valve body (2) , A seal is set between the valve seat (1) and the ball (3) to form a sealed closed structure. The valve seat (1) and the valve body (2) are designed as an arc surface, and the valve seat can rotate along the arc surface. There are rectangular grooves up and down, and a rectangular boss on the valve body (2), which restricts the valve seat from rotating up and down. Through calculation, the length of the groove and the rotation angle of the valve seat are designed. The assembly process is as follows: The chute rotates downwards. When the opening at both ends of the valve seat is larger than the width of the sphere, the sphere is l...

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Abstract

The invention discloses a ball valve seat, and particularly relates to the ball valve seat capable of being fast assembled and disassembled. A sealed closed structure is formed by arranging sealing parts between a valve seat body and a valve body as well as between the valve seat body and a ball body respectively; the valve seat body and the valve body are respectively provided with an arc-shaped surface, a rectangular boss is arranged in the vertical direction of the valve body, a rectangular groove is formed in the vertical direction of the valve seat body, the valve seat body can rotate around the arc surface and move vertically along a sliding groove, an opening between the two ends of the valve seat body is greater than the width of the ball body when the valve seat body moves to the lower end, then the ball body can be fast installed into the valve body, the valve seat body is pulled back to the installation position by a tool, is fixed by a locating device and then reaches the installation position, and finally sealing is realized. When the ball valve seat needs to be fast disassembled, users just need to take down the locating device, push the valve seat body to the lower end through the tool and take out the ball body, then the valve seat body can be fast taken out, and disassembly can be realized. The ball valve seat can be fast assembled and disassembled and is low in machining cost and high in installation efficiency.

Description

Technical field [0001] The invention relates to a ball valve seat, in particular to a quick installation and disassembly valve seat. Background technique [0002] Ball valve is one of the more widely used valves, the main components are valve body, valve seat, ball, valve stem, seals, etc. Its working principle is that the valve seat is sealed with the ball, and the ball is driven to rotate by the valve stem to achieve the function of opening and closing. The ball valve has reliable sealing, simple structure and convenient maintenance, so it is widely used in petroleum, chemical, metallurgical and other industries. As one of the types of ball valves, the top-mounted ball valve has its unique advantages. It can be assembled and overhauled online, which greatly saves installation and maintenance costs. It is an important research direction in the development of valves. [0003] The existing top-mounted ball valve seat assembly mainly has two structures [0004] 1. The threaded uppe...

Claims

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Application Information

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IPC IPC(8): F16K5/06F16K5/08
CPCF16K5/0626
Inventor 戚亚
Owner ZHONGYU VALVE COMPONENTS SUZHOU CO LTD
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