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Fireproof check valve

A check valve and valve body technology, which is applied in the direction of control valves, valve devices, functional valve types, etc., can solve the problems of lack of locking structure, difficulty in preventing fire from spreading, and difficulty in achieving effective sealing of fire prevention check valves. Sealing, avoiding the effect of spreading

Pending Publication Date: 2018-09-04
盐城市百世达建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the lack of a locking structure in the existing fire check valve, when a fire breaks out in the building, it is difficult for the fire check valve to achieve effective sealing and it is difficult to prevent the fire from spreading

Method used

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Examples

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Embodiment Construction

[0024] The preferred embodiment of the present invention will be described in detail below in conjunction with accompanying drawing:

[0025] Such as Figure 1 to Figure 3 The fire check valve shown mainly includes a valve body 1, a valve plate 3, a locking mechanism 4 and the like.

[0026] Wherein, the valve body 1 can adopt existing conventional ones, and usually includes a ventilation pipe 12 and a support plate 11 formed on the peripheral surface of the ventilation pipe 12 (the support plate 11 is usually integrally formed on the peripheral surface of the ventilation pipe 12, so that the support plate 11 perpendicular to the ventilation pipe 12); the ventilation pipe 12 can be a conventional shape such as a square pipe or a round pipe, can be a uniform straight pipe, or can be a special-shaped pipe with different internal diameters (preferably a uniform round pipe); when the ventilation pipe 12 When it is a round tube, its inner diameter; considering the difficulty of th...

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PUM

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Abstract

The invention relates to a fireproof check valve which comprises a valve body, a valve block and a locking mechanism. The valve block is pivoted with the valve body and is matched with an air outlet,the locking mechanism comprises a plurality of limiting blocks, locking sheets, a support, pulling sheets, elastic pieces and temperature-sensing elements, wherein the limiting blocks are installed onthe peripheral face of an air pipe and extend to exceed the air outlet, the locking sheets are installed on the surface of the valve block in a sliding manner and are matched with the limiting blocks, one end of the support is installed on the peripheral face of the air pipe, the pulling sheets are pivoted with the support and correspond to the locking sheets, the elastic pieces are arranged between the support and the pulling sheets, and the temperature-sensing elements are used for connecting the support and the pulling sheets. By means of the fireproof check valve, limiting fixation of thevalve block can be achieved, the leakproofness with the valve body is guaranteed, and flue fire behaviors are prevented from being spread to the indoor place.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a fireproof check valve. Background technique [0002] The fire check valve is an integral metal component, which should be made of metal, and has the functions of fire prevention, prevention of smoke backflow and air guidance in the direction of the wind. The fire check valve is usually installed at the air inlet of the flue in the kitchen, and connected with the range hood, so as to discharge the dirty air such as indoor oil fume out of the roof and prevent the smoke in the flue from flowing backward; and when a fire occurs in the building, When the fire spreads from the flue to the room, the check valve needs to be automatically closed to prevent the fire from spreading in time. Due to the lack of locking structure in the existing fire check valve, when a fire breaks out in the building, it is difficult for the fire check valve to achieve effective sealing and pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/03
CPCF16K15/033
Inventor 刘兵
Owner 盐城市百世达建材有限公司