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A gate valve with emergency opening function

An emergency opening and functional technology, applied to valve details, valve devices, sliding valves, etc., can solve problems such as valve stems are easy to break, leak-proof leather pads wear, etc., and achieve the effect of preventing waste

Active Publication Date: 2019-11-15
ZHEJIANG ZHENGPENG VALVE CO LTD
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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 solve the shortcomings of the gate valve in the prior art that the anti-leakage pad wears and the valve stem is easy to break after long-term use, and proposes a gate valve with an emergency opening function

Method used

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  • A gate valve with emergency opening function
  • A gate valve with emergency opening function
  • A gate valve with emergency opening function

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0022] refer to Figure 1-4 , a gate valve with emergency opening function, a gate valve with emergency opening function, comprising a valve body 1, a first connecting ring 2 is fixed on the top of the side of the valve body 1, and a valve cover 3 is arranged above the first connecting ring 2 The bottom of the valve cover 3 is fixed with a second connecting ring 4, the first connecting ring 2 and the second connecting ring 4 are of the same size, and both sides of the first connecting ring 2 and the second connecting ring 4 are penetrated with bolts 5 slidingly connected with them Each bolt 5 is threaded with a nut 6 at the bottom of the first connecting ring 2, the ...

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Abstract

The invention relates to the technical field of brake vales, in particular to a brake valve with an emergency opening function. The brake valve comprises a valve body, a valve cover is arranged abovea first connection ring, a first threaded column cylinder penetrates through the top of the valve cover, a cambered connection block is arranged under the first threaded column cylinder, the bottom ofthe cambered connection block is fixedly connected with a main valve plate, a wide blind hole is formed in the middle on one side face of the main valve plate, and four slim blind holes are formed inthe circumferential direction of the side face of the main valve plate at equal intervals. An accessory valve plate is arranged on the other side of the main valve plate, a leakage-proof rubber mat is fixedly arranged on the side face of the accessory valve plate, a thick threaded column is fixedly connected with the middle of the side face of the accessory valve plate, slim threaded columns penetrate into the four slim blind holes respectively, and emergency opening mechanisms are arranged on the bottom face of the main valve plate and the bottom face of the accessory valve plate respectively. The brake valve has the emergency opening function, when a threaded valve rod is broken, it can be ensured that the valve body is normally opened, and besides, by adjusting the spacing between themain valve plate and the accessory valve plate, it is ensured that the valve body is sealed when closed.

Description

technical field [0001] The invention relates to the technical field of gate valves, in particular to a gate valve with an emergency opening function. Background technique [0002] The opening and closing part of the gate valve is the gate, and the movement direction of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. Most of the gate valves adopt forced sealing, that is, when the valve is closed, the gate must be forced to press the gate to the valve seat by external force to ensure the tightness of the sealing surface. The gate of the gate valve moves linearly with the valve stem, which is called the lifting rod Gate valve, also called rising stem gate valve, usually has a trapezoidal thread on the lifting rod. Through the nut at the top of the valve and the guide groove on the valve body, the rotary motion is changed into a straight line motion, that is, the operating tor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K3/02F16K3/314F16K31/50
CPCF16K3/0254F16K3/029F16K3/314F16K31/506
Inventor 项有淼
Owner ZHEJIANG ZHENGPENG VALVE CO LTD