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Extending-and-contracting type valve for large-diameter pipe

A large-diameter tube, telescopic technology, applied in the directions of lift valves, valve details, valve devices, etc., can solve the problems of seal reliability damage, valve leakage, damage, etc., and achieve the effect of saving living costs.

Inactive Publication Date: 2018-10-09
BEIHAI YISHENGYUAN AGRI TRADE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the sealing material becomes hard, the reliability of the sealing is damaged, and the sealing material will be damaged after a long time of use, which will cause the valve to leak

Method used

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  • Extending-and-contracting type valve for large-diameter pipe
  • Extending-and-contracting type valve for large-diameter pipe
  • Extending-and-contracting type valve for large-diameter pipe

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Embodiment Construction

[0025] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings: It should be understood that the preferred embodiments are only for illustrating the present invention, rather than limiting the protection scope of the present invention.

[0026] Such as Figures 1 to 9As shown, a telescopic valve for large-diameter pipes includes a valve body 1, an upper end cover 8 and a lower end cover 9 are respectively arranged on the upper and lower sides of the valve body 1, and the edge of the upper end cover 8 is in contact with the valve body. A first liner 10 is provided between the edge of the upper surface of the body 1, and a first liner 10 is also provided between the edge of the lower end cover 9 and the edge of the lower surface of the valve body 1; , The first gasket 10 and the valve body 1 are also fixedly connected by the first screw 6, and the lower end cover 9, the first gasket 10 and the valve body ...

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Abstract

The invention relates to an extending-and-contracting type valve for a large-diameter pipe and belongs to the technical field of valves. The extending-and-contracting type valve comprises a valve body. The upper surface and the lower surface of the valve body are provided with an upper end cover and a lower end cover correspondingly. First gaskets are arranged between the upper end cover and the valve body as well as between the lower end cover and the valve body correspondingly. The upper end cover, the corresponding first gasket and the valve body are fixedly connected through first screws.The lower end cover, the corresponding first gasket and the valve body are also fixedly connected through first screws. A threaded rod and two guiding rods are arranged between the upper end cover andthe lower end cover. The threaded rod is provided with a valve handle and two nuts. Transmission arms are arranged at the two sides of each nut. A piston is arranged between the corresponding two transmission arms of each side of a threaded rod central shaft in a shared manner. A guide pillar is arranged between each piston and the corresponding adjacent guiding rod in a shared manner. Accordingto the extending-and-contracting type valve, by means of the effect of the threaded rod, the large axial thrust can be generated through the small torque, and thus the extending-and-contracting type valve can achieve the labor-saving effect; and the problem that in the prior art, when a valve is damaged and cannot be repaired, the valve is replaced with a new valve is solved, and thus the living cost is saved.

Description

technical field [0001] The invention relates to a telescopic valve for large-diameter pipes, which belongs to the technical field of valves. Background technique [0002] With the emergence of large-diameter pipes, the volume of the valve will also increase. At present, the more commonly used valves on the market include ball valves, butterfly valves, and gate valves. When the volume of these valves increases, the force used to pull these traditional valves will greatly increase. In the existing valve, when the internal parts of the valve are damaged, it cannot be disassembled for maintenance, and the valve can only be replaced with a new one, which increases the cost of living. For example, the sealing rubber material in the valve is polytetrafluoroethylene, which is resistant to almost all chemical The material is inert, and has the comprehensive characteristics of small friction coefficient, stable performance, not easy to age, wide temperature range and excellent sealin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/02F16K1/36F16K1/44F16K1/48F16K27/02F16K31/50
CPCF16K1/02F16K1/36F16K1/44F16K1/48F16K27/02F16K31/50
Inventor 陈柏凤陈锡清
Owner BEIHAI YISHENGYUAN AGRI TRADE CO LTD
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