Flue fire damper for range hood

A technology for fire dampers and range hoods, which is applied to safety valves, balance valves, valve devices, etc., can solve the problems of large air outlet loss, complex structure, and large air outlet area of ​​the passage, so as to reduce the blockage of the flue, work stably, simple structure

Inactive Publication Date: 2016-01-13
NINGBO FOTILE KITCHEN WARE CO LTD
View PDF11 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the fire damper can be forcibly closed when the flue gas temperature in the public flue gas duct is in a high emergency state, its structure is relatively complicated, the air outlet area of ​​the channel occupied is large,

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
  • Flue fire damper for range hood
  • Flue fire damper for range hood
  • Flue fire damper for range hood

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0024] Such as Figure 1 to Figure 3 As shown, the flue fire damper for range hoods in this embodiment includes a fire damper bottom plate 1, a fire damper body 2, a fire damper sheet 3, a first bracket 4, a second bracket 5, a forced closing rod 6, and a deformation piece 7 , torsion spring 8, flue transition cover 9, installation shaft bracket 10, installation shaft 11, rotating connecting piece 12, fire damper sealing sleeve 13, magnet 14, fixed spring buckle 15 and gasket 16 and other main components.

[0025] The installation shaft bracket 10 is fixed on the fire damper body 2, the installation shaft 11 is arranged horizontally and installed on the installation shaft bracket 10, the rotating connecting piece 12 is installed on the installing shaft 10, and the top of the fire damper plate 3 is fixed on the rotating connecting piece 12 , T...

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

A flue fire damper for a range hood comprises a fire damper bottom plate and a fire damper body. A fire damper piece is arranged on the fire damper body. The flue fire damper is characterized in that the fire damper body is provided with a first support and a second support, an elastic piece is arranged on the first support, and a deformation piece capable of generating corresponding deformation along with the temperature change is arranged on the second support; a forced closing rod is arranged between the first support and the second support, the first end of the forced closing rod is arranged on the first support, and under the state that the deformation piece does not deform, the second end of the forced closing rod is blocked through the deformation piece and limited on the second support; and under the state that the deformation piece deforms due to temperature rising, the forced closing rod disengages from the deformation piece and the second support, and the fire damper piece is forced to be closed through the elastic piece. The fire damper is simple in structure and stable and reliable in work. After a flue joint outer cover is arranged, the situation of flue blockage can be effectively reduced.

Description

technical field [0001] The invention relates to a fire damper, in particular to a flue fire damper for a range hood. Background technique [0002] In kitchens using longitudinal public flue ducts, in order to prevent oily fumes from flowing back into the kitchen, a device such as a flue check valve is installed between the outlet pipe of the range hood and the public flue duct. . Existing flue check valves generally include an oil fume passage formed by a casing, the oil fume passage has opposite air inlets and air outlets, the air inlet is connected to the outlet pipe of the range hood, and the air outlet extends into the public flue gas passage , A valve plate that can be opened and closed is arranged at the air outlet of the oil fume channel, and the valve plate is installed on the inner wall of the oil smoke channel through the rotation of the horizontally arranged valve plate rotating shaft. When the range hood is not in use, the valve plate is in the closed position ...

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): F16K17/38
CPCF16K17/383F16K17/386
Inventor 钟建设何立博茅忠群诸永定申志贤
Owner NINGBO FOTILE KITCHEN WARE CO LTD
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