Manual hydraulic gate valve

A hydraulic and gate valve technology, applied in the field of gate valves, can solve problems such as loss of control of pipeline valves and economic losses, and achieve the effect of compact structure

Active Publication Date: 2012-01-18
JIANGSU SUYAN VALVE MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Make the pipeline valve out of control, let the oil spray, cause the fire to burn more and more prosperous, and cause great economic losses to the country

Method used

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  • Manual hydraulic gate valve
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Examples

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Embodiment 1

[0016] Such as figure 1 As shown, the manual hydraulic gate valve in the present invention includes a gate valve 1 and a manual hydraulic control device 3 that can drive the gate valve to lift up and down. The gate valve 1 includes: a gate valve body 101 , a gate plate 102 , and a valve stem 5 . Such as figure 2 As shown, the manual hydraulic control device includes a hydraulic cylinder 4 , an oil pipe 2 , a reversing valve 7 and a hydraulic device 3 . The hydraulic cylinder 4 is connected with the hydraulic device 3 through the oil pipe 2 .

[0017] Such as figure 1 , 2 As shown, the hydraulic cylinder 4 in the manual hydraulic control device is set 3 on the upper end of the gate valve body 101, and the upper end of the valve stem 5 is fixedly connected with the piston 403 in the hydraulic cylinder 4 of the manual hydraulic control device. Two oil inlet holes 401 and 402 are respectively provided at both ends of the hydraulic cylinder 4 . One end of the oil pipe 2 is c...

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PUM

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Abstract

The invention discloses a manual hydraulic gate valve, which comprises a gate valve body, a flashboard and a valve rod and also comprises a manual hydraulic control device connected with the valve rod, wherein the manual hydraulic control device comprises a hydraulic cylinder, an oil tube, a change valve and a hydraulic actuator; and the hydraulic actuator is connected with the hydraulic cylinderthrough the oil tube which is connected with the change valve. When the manual hydraulic gate valve is used, the opening and closing of the flashboard are driven by the manual hydraulic control device.

Description

technical field [0001] The invention relates to a gate valve, in particular to a gate valve which is opened and closed by manual hydraulic pressure, and can also be used for a stop valve. Background technique [0002] The general gate valve is widely used in various pipeline systems due to its small flow resistance, convenient opening and closing, ability to clean pipelines, and being suitable for different corrosive media. [0003] However, at present, large gate valves are all pneumatic or electric. If an accident occurs, for example, the oil pipeline catches fire, etc., in order to prevent the flame from spreading, the first step in a fire is usually to cut off the main power supply, so that all electric and pneumatic devices on the pipeline, including Valves have lost their power source. The pipeline valve is out of control, and oil is allowed to spray, causing the fire to burn more and more vigorously, causing great economic losses to the country. Contents of the inv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K3/02F16K31/122F16K31/60
Inventor 胡金木
Owner JIANGSU SUYAN VALVE MASCH CO LTD
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