Double-gate-disc gate valve

A double gate, gate valve technology, applied in the direction of sliding valves, valve devices, engine components, etc., can solve the problem of impurity retention in the fluid medium, and achieve the effect of thorough flushing and speeding up the flow

Active Publication Date: 2018-08-21
ZHEJIANG IND & TRADE VACATIONAL COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a double disc gate valve, which solves the problem that impurities in the fluid medium remain in the valve chamber

Method used

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  • Double-gate-disc gate valve
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Embodiment Construction

[0035] 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.

[0036] Refer below Figure 1 to Figure 8 The present invention is further described, as figure 1 A double gate valve shown includes a cylinder 10, a valve body, a valve seat 60, an upper gate 70 and a lower gate 80, and the valve body is composed of an upper valve body 40, a middle valve body 20 and a lower valve body 30 The upper end of the upper valve body 40 has an inlet 41, the cylinder 10 is connected with the middle valve body 20, the front end of the piston rod of the cylinder 10 is connected with a push handle 50, and the upper gate 70 Connected to the upper end of the push handle 50 , the lower shutter 80 is connected to the lower end of the push handle 50 .

[0037] Such as figure 1 , figure 2 , Image 6 with Figure 7 As shown, the...

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PUM

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Abstract

The invention provides a double-gate-disc gate valve, comprising an air cylinder, a valve body, a valve seat, an upper gate disc and a lower gate disc, wherein the valve body consists of an upper valve body, a middle valve body and a lower valve body, the air cylinder is connected with the middle valve body, the front end of a piston rod of the air cylinder is connected with a push handle, the upper gate disc is connected to the upper end of the push handle, and the lower gate disc is connected to the lower end of the push handle, the lower gate disc comprises an upper gasket, an inner cylinder, an outer cylinder and a lower gasket, and the upper gasket sleeves the upper part of a positioning shaft of the push handle; the inner cylinder sleeves the middle part of the positioning shaft; theouter cylinder movably sleeves the inner cylinder; the lower gasket sleeves the lower part of the positioning shaft. The double-gate-disc gate valve provided by the invention adopts the above structure, so when a valve is in a closed state, since a valve cavity of the valve body is always communicated with a conveying pipeline on the lower valve body, under the action of eddy current generated bythe conveying pipe, impurity deposition does not occur or does not easily occur in the valve cavity.

Description

technical field [0001] The invention relates to a valve, in particular to a double gate valve. Background technique [0002] Double disc gate valve is a valve suitable for closed-circuit equipment on pipelines with water and sewage as the medium, and is not allowed to be used for flow adjustment and emptying. [0003] Chinese patent CN201020128939.3 discloses a double-gate gate valve, including a cylinder, a valve body, a valve seat, an upper gate and a lower gate. The valve body is composed of three parts: an upper valve body, a middle valve body and a lower valve body. One end of the valve body is directly connected to the cylinder, the upper and lower gates are fixedly connected to the push handle, and the push handle is directly connected to the piston rod in the cylinder. It forms a sealing pair with the upper valve body, and the lower valve body is provided with a chute connecting the inner cavity of the middle valve body and the conveying channel of the lower valve b...

Claims

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Application Information

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IPC IPC(8): F16K3/02F16K3/314
CPCF16K3/029F16K3/314
Inventor 陈学磊郑胜峰
Owner ZHEJIANG IND & TRADE VACATIONAL COLLEGE
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