Ventilating duct or flue drainage and fireproof non-return device

A technology of check device and ventilation channel, applied in the direction of valve device, function valve type, valve details, etc., can solve the problems of low practicability, poor smoke exhaust effect, lack of control baffle control structure, etc., and achieve reasonable structure and exhaust Unobstructed, anti-smoke effect is remarkable

Inactive Publication Date: 2015-01-28
BEIJING DULONG RUIJIAN TECH DEV
View PDF5 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this structure can prevent poisonous gas from pouring back, its structure can only be used once. Once the fuse is blown, the entire device can only be removed for

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Ventilating duct or flue drainage and fireproof non-return device
  • Ventilating duct or flue drainage and fireproof non-return device
  • Ventilating duct or flue drainage and fireproof non-return device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0014] Such as Figure 1 to Figure 3 As shown: a ventilation duct or flue drainage and fire prevention non-return device according to an embodiment of the present invention, including a base 1, the base 1 is square in shape, and the base is sleeved at the exit of the smoke exhaust pipe, and the middle of the base is A hollow channel is provided, and a baffle plate 2 for closing the hollow channel is provided on the base. The bottom of the baffle plate 2 is movably linked through the base, and a control device is provided at the lower part of the base, and the control device is used for In order to control the opening and closing angle of the baffle plate 2, the control device includes a first torsion spring 3, the first torsion spring is fixedly arranged at the connection between the baffle plate and the base, and the first torsion spring The tw...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a ventilating duct or flue drainage and fireproof non-return device which comprises a base, wherein the base is arranged at an outlet of a smoke removal pipeline in a sleeving manner, and a hollow channel is formed in the middle of the base; a baffle plate used for closing the hollow channel is arranged on the base, and the bottom of the baffle plate is movably chained through the base; a control device is arranged at the lower part of the base and comprises a first torsion spring, and the first torsion spring is fixedly arranged in the connecting position of the baffle plate and the base; a temperature control device is also arranged on the base and comprises a second torsion spring and a metal temperature sensing piece; one end of the metal temperature sensing piece is fixedly arranged on the base, and the other end of the metal temperature sensing piece is of a movable end and is butted against the baffle plate; a convex part is arranged at the movable end of the metal temperature sensing piece. The ventilating duct or flue drainage and fireproof non-return device can automatically close the smoke removal pipeline according to the temperature variation in the smoke removal pipeline.

Description

technical field [0001] The invention relates to a non-return device for ventilation and flue drainage and fire prevention. Background technique [0002] In today's society, residential buildings in cities mostly use centralized smoke exhaust channels, and the smoke exhaust or exhaust ducts of each household are connected to the centralized smoke exhaust channels. Or the outlet of the exhaust duct is provided with a movable baffle, which closes the outlet under normal conditions and opens when the smoke is exhausted. The plate cover is at the exit of the smoke exhaust or exhaust pipe, and the thrust of the indoor smoke is used to make the baffle rotate with the pin shaft as the fulcrum to achieve the purpose of smoke exhaust. Although the above structure can achieve the effect of smoke exhaust, but its The opening of the baffle is in the same direction as the gravity and opposite to the rising direction of the flue gas, so the backflow of the flue gas cannot be completely av...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F16K17/38F16K15/03
CPCF16K17/386F16K15/033F16K27/0209
Inventor 林军
Owner BEIJING DULONG RUIJIAN TECH DEV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap