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Smoke exhaust valve

A smoke exhaust valve and valve body technology, applied in the direction of lift valves, valve devices, pipes/pipe joints/fittings, etc., can solve the problems of reduced safety and large air leakage, and achieve the effect of improving airtight performance and controlling air leakage

Inactive Publication Date: 2017-03-08
CHONGQING LANGTUO VENTILATION EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the existing smoke exhaust valve can meet the requirements of use to a certain extent, due to the gap between the blade and the valve body during the rotation process, the air leakage is too large and the safety is reduced.

Method used

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Examples

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.

[0022] Such as figure 1 Shown is a schematic structural view of an embodiment of the smoke exhaust valve of the present invention. The smoke exhaust valve of this embodiment includes a valve body 1, a flue gas passage 2 is provided in the valve body 1, and a blade mechanism is arranged in the flue gas passage 2, and the blade mechanism includes at least two blades 3 arranged side by side in the flue gas passage. , the middle part of the blade 3 is provided with a rotating shaft 4, and the two ends of the rotating shaft 4 are respectively rotated and fitted on the upper and lower side walls of the flue gas channel 2, and the bottom of the valve body 1 is provided with a blade linka...

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Abstract

The invention discloses a smoke exhaust valve. The smoke exhaust valve comprises a valve body, a smoke channel is formed in the valve body, a blade mechanism is arranged in the smoke channel, and comprises at least two blades arranged in the smoke channel side by side, a rotating shaft is arranged in the middles of the blades, the two ends of the rotating shaft are mounted on the upper side wall and the lower side wall of the smoke channel in a rotatable fit manner, and a blade linkage mechanism is arranged at the bottom of the valve body; an execution device used for controlling the blade mechanism is arranged on the top face of the valve body, middle strips are arranged on the upper side wall and the lower side wall of the smoke channel, protrusions protruding towards the blades are arranged in the middles of the middle strips, a flexible deformation cover matched with the ends of the blades is arranged on the protrusions in a covering manner, and deformation gaps are arranged between the flexible deformation cover and the protrusions; block strips matched with the blades in a limiting manner are arranged on the left side wall and the right side wall of the smoke channel.

Description

technical field [0001] The invention belongs to the technical field of building fire-fighting equipment, and in particular relates to a smoke exhaust valve. Background technique [0002] Building fire prevention is the fire prevention measures of buildings. Fire prevention measures should be taken in architectural design to prevent fires and reduce fire hazards to life and property. Building fire prevention includes two aspects: prevention before fire and measures during fire. The former is mainly to determine the fire resistance level and structure, control the amount of combustibles and separate the fire site, etc.; the latter is mainly to carry out fire protection zones, set up evacuation facilities and smoke exhaust , fire extinguishing equipment, etc. [0003] The smoke exhaust valve is installed at the end of each branch pipe (smoke suction port) of the mechanical smoke exhaust system. It is normally closed and meets the air leakage requirements. It is manually or el...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/226F16L55/10
CPCF16K1/226F16K1/223F16K1/2263F16L55/1018F16L55/1026
Inventor 段志亭
Owner CHONGQING LANGTUO VENTILATION EQUIP CO LTD
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