CN111878609A - Fireproof check valve for fume extractor - Google Patents
Fireproof check valve for fume extractor Download PDFInfo
- Publication number
- CN111878609A CN111878609A CN202010769902.7A CN202010769902A CN111878609A CN 111878609 A CN111878609 A CN 111878609A CN 202010769902 A CN202010769902 A CN 202010769902A CN 111878609 A CN111878609 A CN 111878609A
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- CN
- China
- Prior art keywords
- check valve
- partition plate
- pressure spring
- fuse piece
- hole
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
- F16K17/38—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature
- F16K17/383—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature the valve comprising fusible, softening or meltable elements, e.g. used as link, blocking element, seal, closure plug
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/40—Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a fireproof check valve of an oil fume extractor.A gas inlet communicated with an outlet of the oil fume extractor is arranged at one end of a check valve pipe, and the other end of the check valve pipe is closed; the check valve device comprises a transverse partition plate, one end of the transverse partition plate is connected with a check valve pipe, the other end of the transverse partition plate is connected with a support and an oblique partition plate, a through hole is formed in the oblique partition plate, a valve clack is arranged on the through hole, the through hole is opposite to a flue connecting port on the side face of the check valve pipe, and a gas channel is formed by a gas inlet, the through hole in the oblique partition plate and the flue connecting port; be equipped with the pressure spring on the flue connector one side of valve clack, the pressure spring passes through the connecting rod to be connected with the one end of first fuse piece, and the other end of first fuse piece is connected with the one end of montant, and the other end of montant passes positioning sleeve and is connected with the one end of second fuse piece or by the one end roof pressure of second fuse piece be in the other end of montant, the other end of second fuse piece with leg joint. The invention can realize fusing control and realize axial internal and external double control.
Description
Technical Field
The invention relates to a fireproof check valve of an oil smoke exhaust device.
Background
The existing fireproof check valve of the oil fume extractor generally adopts a single fuse piece, and only can perform fusing control on one end at high temperature; in addition, the mounting is troublesome, and further improvement is required.
Disclosure of Invention
The invention aims to provide a fireproof check valve of an oil smoke exhaust device, which realizes double control of axial inside and outside.
The technical solution of the invention is as follows:
the utility model provides a range hood fire prevention check valve which characterized by: the check valve device comprises a check valve pipe, wherein a check valve device is arranged in the check valve pipe; one end of the check valve pipe is an air inlet communicated with the outlet of the range hood, and the other end of the check valve pipe is closed; the check valve device comprises a transverse partition plate, one end of the transverse partition plate is connected with a check valve pipe, the other end of the transverse partition plate is connected with a support and an oblique partition plate, a through hole is formed in the oblique partition plate, a valve clack is arranged on the through hole, the through hole is opposite to a flue connecting port on the side face of the check valve pipe, and a gas channel is formed by a gas inlet, the through hole in the oblique partition plate and the flue connecting port; a pressure spring is arranged on one side of a flue connecting port of the valve clack, the pressure spring is connected with one end of a first fuse piece through a connecting rod, the other end of the first fuse piece is connected with one end of a vertical rod, the other end of the vertical rod penetrates through a positioning sleeve to be connected with one end of a second fuse piece or is pressed against the other end of the vertical rod through one end of the second fuse piece, and the other end of the second fuse piece is connected with the support;
in the working state, the pressure spring is firstly positioned outside the valve clack, and the valve clack can be opened; if the temperature at one end of the range hood is too high and the second fuse piece is fused, the vertical rod moves towards one end of the range hood under the action of the restoring elasticity of the pressure spring, and meanwhile, the pressure spring moves in the same direction and presses the valve clack to close the valve clack; if the temperature in the flue is too high, when fusing first fuse link, the pressure spring no longer receives the pulling force of montant, and the pressure spring removes and presses to the valve clack, closes the valve clack.
The inclined angle of the inclined clapboard is 115 degrees. The periphery of the through hole of the oblique baffle plate is provided with a magnetic steel, and the valve clack is closed under the action of magnetic force in a non-working state. An external jacking screw is arranged on the check valve pipe and is jacked on an external steel plate; one end of the external steel plate is fixed, the other end of the external steel plate is in contact with the external jacking screw, and the external steel plate is pushed outwards during installation to realize fastening installation.
The invention is provided with the fuse pieces at one end of the range hood and one end of the flue of the check valve pipe, and can realize fusing control when one end of the range hood is high-temperature or one end of the flue is high-temperature, thereby realizing double control of inside and outside in the axial direction.
Drawings
The invention is further illustrated by the following figures and examples.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
A kind of fire-proof check valve of the oil fume extractor, including the check valve pipe 1, set up the check valve device in the check valve pipe; one end of the check valve pipe is an air inlet 2 communicated with the outlet of the range hood, and the other end of the check valve pipe is closed; the check valve device comprises a transverse partition plate 3, one end of the transverse partition plate is connected with a check valve pipe, the other end of the transverse partition plate is connected with a support 4 and an oblique partition plate 5, a through hole is formed in the oblique partition plate, a valve clack 6 is arranged on the through hole, the through hole is opposite to a flue connecting port 7 on the side face of the check valve pipe, and an air channel is formed by an air inlet, the through hole in the oblique partition plate and the flue connecting port; a pressure spring 8 is arranged on one side of a flue connecting port of the valve flap, the pressure spring is connected with one end of a first fuse piece 10 through a connecting rod 9, the other end of the first fuse piece is connected with one end of a vertical rod 11, the other end of the vertical rod penetrates through a positioning sleeve 12 to be connected with one end of a second fuse piece 13 or is propped against the other end of the vertical rod by one end of the second fuse piece, and the other end of the second fuse piece is connected with the support;
in the working state, the pressure spring is firstly positioned outside the valve clack, and the valve clack can be opened; if the temperature at one end of the range hood is too high and the second fuse piece is fused, the vertical rod moves towards one end of the range hood under the action of the restoring elasticity of the pressure spring, and meanwhile, the pressure spring moves in the same direction and presses the valve clack to close the valve clack; if the temperature in the flue is too high, when fusing first fuse link, the pressure spring no longer receives the pulling force of montant, and the pressure spring removes and presses to the valve clack, closes the valve clack.
The inclined angle of the inclined clapboard is about 115 degrees. The periphery of the through hole of the oblique baffle plate is provided with a magnetic steel, and the valve clack is closed under the action of magnetic force in a non-working state. An external jacking screw is arranged on the check valve pipe and is jacked on an external steel plate; one end of the external steel plate is fixed, the other end of the external steel plate is in contact with the external jacking screw, and the external steel plate is pushed outwards during installation to realize fastening installation.
Claims (4)
1. The utility model provides a range hood fire prevention check valve which characterized by: the check valve device comprises a check valve pipe, wherein a check valve device is arranged in the check valve pipe; one end of the check valve pipe is an air inlet communicated with the outlet of the range hood, and the other end of the check valve pipe is closed; the check valve device comprises a transverse partition plate, one end of the transverse partition plate is connected with a check valve pipe, the other end of the transverse partition plate is connected with a support and an oblique partition plate, a through hole is formed in the oblique partition plate, a valve clack is arranged on the through hole, the through hole is opposite to a flue connecting port on the side face of the check valve pipe, and a gas channel is formed by a gas inlet, the through hole in the oblique partition plate and the flue connecting port; a pressure spring is arranged on one side of a flue connecting port of the valve clack, the pressure spring is connected with one end of a first fuse piece through a connecting rod, the other end of the first fuse piece is connected with one end of a vertical rod, the other end of the vertical rod penetrates through a positioning sleeve to be connected with one end of a second fuse piece or is pressed against the other end of the vertical rod through one end of the second fuse piece, and the other end of the second fuse piece is connected with the support;
in the working state, the pressure spring is firstly positioned outside the valve clack, and the valve clack can be opened; if the temperature at one end of the range hood is too high and the second fuse piece is fused, the vertical rod moves towards one end of the range hood under the action of the restoring elasticity of the pressure spring, and meanwhile, the pressure spring moves in the same direction and presses the valve clack to close the valve clack; if the temperature in the flue is too high, when fusing first fuse link, the pressure spring no longer receives the pulling force of montant, and the pressure spring removes and presses to the valve clack, closes the valve clack.
2. The fire check valve of claim 1, wherein: the inclined angle of the inclined clapboard is 115 degrees.
3. The fire check valve of claim 1, wherein: the periphery of the through hole of the oblique baffle plate is provided with a magnetic steel, and the valve clack is closed under the action of magnetic force in a non-working state.
4. The fire check valve of claim 1, wherein: an external jacking screw is arranged on the check valve pipe and is jacked on an external steel plate; one end of the external steel plate is fixed, the other end of the external steel plate is in contact with the external jacking screw, and the external steel plate is pushed outwards during installation to realize fastening installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010769902.7A CN111878609A (en) | 2020-08-04 | 2020-08-04 | Fireproof check valve for fume extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010769902.7A CN111878609A (en) | 2020-08-04 | 2020-08-04 | Fireproof check valve for fume extractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111878609A true CN111878609A (en) | 2020-11-03 |
Family
ID=73206117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010769902.7A Pending CN111878609A (en) | 2020-08-04 | 2020-08-04 | Fireproof check valve for fume extractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111878609A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115978261A (en) * | 2023-02-13 | 2023-04-18 | 中国建筑标准设计研究院有限公司 | Kitchen flue closed fire-proof valve |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210687151U (en) * | 2019-10-31 | 2020-06-05 | 陈开兵 | Oil smoke discharging fireproof check valve with front and back double control |
-
2020
- 2020-08-04 CN CN202010769902.7A patent/CN111878609A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210687151U (en) * | 2019-10-31 | 2020-06-05 | 陈开兵 | Oil smoke discharging fireproof check valve with front and back double control |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115978261A (en) * | 2023-02-13 | 2023-04-18 | 中国建筑标准设计研究院有限公司 | Kitchen flue closed fire-proof valve |
| CN115978261B (en) * | 2023-02-13 | 2023-08-04 | 中国建筑标准设计研究院有限公司 | Kitchen flue airtight fire damper |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201103 |
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| RJ01 | Rejection of invention patent application after publication |