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Fireproof check valve

A check valve, valve core technology, applied in the direction of control valve, balance valve, valve device, etc., can solve problems such as difficulty in disassembly and cleaning

Active Publication Date: 2017-05-24
HANGZHOU XIAOMI ENVIRONMENTAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing fire check valve has the problem of difficulty in dismantling and cleaning

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] refer to figure 1 , image 3 and Figure 5 , a fire check valve, comprising a valve body 1, a valve core 2, a valve plate 3 and a connecting rod 4, the valve core 2 is provided with an exhaust port 211, the valve plate 3 is covered on the exhaust port 211, and the valve plate 3 is connected with the valve core 2 through the connecting rod 4, and the valve body 1 is provided with a mounting hole 11, and the valve core 2 is inserted into the mounting hole 11 and detachably installed on the valve body 1.

[0030] refer to figure 1 , the valve core 2 of this embodiment is connected to the valve body 1 through a snap-fit ​​structure. With such a design, the connection strength between the valve core 2 and the valve body 1 is high, and the position accuracy of the valve plate 3 is better. In other embodiments of the present invention, the valve core is threadedly connected with the valve body; or, the valve core is interference fit with the valve body.

[0031] refer to ...

Embodiment 2

[0047] A fire check valve, comprising a valve body, a valve core, a valve plate and a connecting rod, the valve core is provided with an exhaust port, the valve plate cover is arranged on the exhaust port, the valve plate and the valve core are connected through a connecting rod, the valve body There is a mounting hole on the top, the valve core is inserted into the mounting hole and detachably installed on the valve body.

[0048] The valve body of this embodiment is provided with a wind guide cover, and the wind guide cover includes a limit plate corresponding to the valve plate, and the fire check valve also includes a valve for limiting the minimum distance between the valve plate and the limit plate The limit mechanism of the present invention is different from the first embodiment in that: the limit mechanism includes an adjustment rod arranged on the limit plate, and the adjustment rod corresponds to the valve plate.

[0049] In this embodiment, the adjusting rod is sna...

Embodiment 3

[0051] A fire check valve, comprising a valve body, a valve core, a valve plate and a connecting rod, the valve core is provided with an exhaust port, the valve plate cover is arranged on the exhaust port, the valve plate and the valve core are connected through a connecting rod, the valve body There is a mounting hole on the top, the valve core is inserted into the mounting hole and detachably installed on the valve body.

[0052] The valve body of this embodiment is provided with a wind guide cover, and the wind guide cover includes a limit plate corresponding to the valve plate, and the fire check valve also includes a valve for limiting the minimum distance between the valve plate and the limit plate The difference between the limiting mechanism and the first embodiment is that the limiting mechanism includes an adjusting rod and a sound-absorbing block, the adjusting rod and the valve plate are connected as a whole by welding, the sound-absorbing block and the limiting pla...

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PUM

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Abstract

The invention relates to a fireproof check valve which solves the problem that the check valve is hard to unpick and wash. The fireproof check valve comprises a valve body, a valve element, a valve block and a connecting rod. An exhaust hole is formed in the valve element, the valve block covers the exhaust hole, the valve block is connected to the valve element through the connecting rod, a mounting hole is formed in the valve body, and the valve element is inserted into the mounting hole and is detachably mounted on the valve body.

Description

technical field [0001] The invention relates to a fireproof check valve. Background technique [0002] The existing fire check valve includes a valve body, a valve plate and a connecting rod for connecting the valve plate and the valve body. The valve body is provided with an exhaust port, the valve plate cover is arranged on the exhaust port, and the connecting rod rotates relative to the valve body. , to realize the opening of the valve plate or the closing of the exhaust port. [0003] During the working process of the fire check valve, the oil contained in the flue gas will adhere to the valve plate, which will weaken the smoke exhaust effect of the fire check valve. However, the existing fire check valve has the problem of difficulty in dismantling and cleaning. Contents of the invention [0004] The problem to be solved by the present invention is to provide a fireproof check valve to facilitate its disassembly and cleaning. [0005] In order to solve the above pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/03F16K17/38F24C15/20
CPCF16K15/033F16K17/383F24C15/2021F24C15/2092
Inventor 王启定曹正祥
Owner HANGZHOU XIAOMI ENVIRONMENTAL SCI & TECH
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