CN109838603B - Oil smoke discharging fireproof check valve - Google Patents
Oil smoke discharging fireproof check valve Download PDFInfo
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- CN109838603B CN109838603B CN201910201003.4A CN201910201003A CN109838603B CN 109838603 B CN109838603 B CN 109838603B CN 201910201003 A CN201910201003 A CN 201910201003A CN 109838603 B CN109838603 B CN 109838603B
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- valve clack
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- check valve
- valve
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Abstract
The invention discloses a fireproof check valve for oil smoke discharge, wherein a check valve pipe is provided with a valve clack, the valve clack comprises a large valve clack with a large area and a small valve clack with a small area, an overlapping part is arranged between the large valve clack and the small valve clack, and the large valve clack covers the small valve clack at the overlapping part; the small valve clack is connected with the check valve pipe through a first hinge structure, and the large valve clack is connected with the check valve pipe through a second hinge structure; the lower end of the stop piece is connected with the torsion spring shaft, the upper end of the stop piece is provided with a fuse link, the stop piece is connected with the second vertical hinge piece through the fuse link, and when the fuse link is fused, the stop piece is pressed on the large valve clack under the action of the torsion spring; the surface of the big valve clack is provided with a stop clamping protrusion matched with the stop sheet, and when the stop sheet is pressed on the big valve clack, the stop sheet is propped against the stop clamping protrusion to prop the big valve clack. The invention has unique structure, has the functions of flue fire prevention and kitchen fire prevention, and has the functions of chimney effect prevention and odor tainting prevention.
Description
Technical Field
The invention relates to a fireproof check valve for oil smoke discharge.
Background
The existing fireproof check valve cannot have the functions of flue fire prevention and kitchen fire prevention due to the structure and the like, namely, the existing fireproof check valve does not have a real double-prevention check valve, has the defect of the fireproof function, and needs to be further improved.
Disclosure of Invention
The invention aims to provide an oil smoke discharging fireproof check valve with flue fireproof and kitchen fireproof functions.
The technical solution of the invention is as follows:
the utility model provides an oil extraction flue gas fire prevention check valve, includes the check valve pipe, characterized by: the check valve pipe is provided with a valve clack, the valve clack comprises a large valve clack with a large area and a small valve clack with a small area, an overlapping part is arranged between the large valve clack and the small valve clack, and the large valve clack covers the small valve clack at the overlapping part; the small valve flap is connected with the check valve pipe through a first hinge structure, the first hinge structure comprises a first vertical hinge piece fixed on the check valve pipe and a first transverse hinge piece fixed on the surface of the small valve flap, and the first vertical hinge piece is connected with the first transverse hinge piece through a hinge shaft; the large valve clack is connected with the check valve pipe through a second hinge structure, the second hinge structure comprises a second vertical hinge piece fixed on the check valve pipe and a second transverse hinge piece fixed on the surface of the large valve clack, and the second vertical hinge piece is connected with the second transverse hinge piece through a hinge shaft; the second vertical hinge piece is provided with a stop piece controlled by a torsion spring to act; the lower end of the stop piece is connected with the torsion spring shaft, the upper end of the stop piece is provided with a fuse link, the stop piece is connected with the second vertical hinge piece through the fuse link, and when the fuse link is fused, the stop piece is pressed on the large valve clack under the action of the torsion spring; the surface of the big valve clack is provided with a stop clamping protrusion matched with the stop sheet, and when the stop sheet is pressed on the big valve clack, the stop sheet is propped against the stop clamping protrusion to prop the big valve clack.
And the first vertical hinge piece is provided with an adjusting screw, and the length of the adjusting screw penetrating out of the first vertical hinge piece is adjusted to adjust the size of the small valve opening and the wind direction. When the large valve clack is in an open state, the large valve clack is in contact with the fuse link.
The invention has unique structure, the fuse link is positioned in the flue, when the temperature in the flue is overhigh, the fuse link is fused, the stop piece presses against the low pressure on the big valve clack, and the fireproof function of the flue is realized; when the big valve clack is opened, the big valve clack is in contact with the fuse link, and when the temperature of the big valve clack is too high, the fuse link is fused, and the stop piece is pressed against the big valve clack, so that the fireproof function of a kitchen room is realized. The present invention has the advantages of chimney effect prevention and odor tainting prevention. The wind direction can be adjusted through the adjusting screw.
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.
Fig. 2 is a top view of the embodiment of fig. 1.
Fig. 3 is a view a-a of fig. 2.
Detailed Description
A kind of oil smoke discharging fire-proof check valve, including check valve pipe 1, set up the valve flap on the check valve pipe, the said valve flap includes the large valve flap 2 with large area and small valve flap 3 with small area, have overlap parts between small valve flap and the large valve flap, and it is on the small valve flap that the large valve flap covers on the said overlap part; the small valve flap is connected with the check valve pipe through a first hinge structure, the first hinge structure comprises a first vertical hinge piece 4 fixed on the check valve pipe and a first transverse hinge piece 5 fixed on the surface of the small valve flap, and the first vertical hinge piece is connected with the first transverse hinge piece through a hinge shaft; the large valve clack is connected with the check valve pipe through a second hinge structure, the second hinge structure comprises a second vertical hinge piece 6 fixed on the check valve pipe and a second transverse hinge piece 7 fixed on the surface of the large valve clack, and the second vertical hinge piece is connected with the second transverse hinge piece through a hinge shaft; the second vertical hinge piece is provided with a stop piece 9 controlled by a torsion spring 8; the lower end of the stop piece is connected with the torsion spring shaft, the upper end of the stop piece is provided with a fuse link 10, the stop piece is connected with the second vertical hinge piece through the fuse link, and when the fuse link is fused, the stop piece is pressed on the large valve clack under the action of the torsion spring; the surface of the big valve clack is provided with a stop clamping projection 11 matched with the stop sheet, and when the stop sheet is pressed on the big valve clack, the stop sheet is propped against the stop clamping projection to prop the big valve clack.
Set up adjusting screw 12 on the first vertical hinge piece, through adjusting screw wears out the length of first vertical hinge piece, realizes the regulation to little valve clack opening size and wind direction. When the large valve clack is in an open state, the large valve clack is in contact with the fuse link.
Claims (3)
1. The utility model provides an oil extraction flue gas fire prevention check valve, includes the check valve pipe, characterized by: the check valve pipe is provided with a valve clack, the valve clack comprises a large valve clack with a large area and a small valve clack with a small area, an overlapping part is arranged between the large valve clack and the small valve clack, and the large valve clack covers the small valve clack at the overlapping part; the small valve flap is connected with the check valve pipe through a first hinge structure, the first hinge structure comprises a first vertical hinge piece fixed on the check valve pipe and a first transverse hinge piece fixed on the surface of the small valve flap, and the first vertical hinge piece is connected with the first transverse hinge piece through a hinge shaft; the large valve clack is connected with the check valve pipe through a second hinge structure, the second hinge structure comprises a second vertical hinge piece fixed on the check valve pipe and a second transverse hinge piece fixed on the surface of the large valve clack, and the second vertical hinge piece is connected with the second transverse hinge piece through a hinge shaft; the second vertical hinge piece is provided with a stop piece controlled by a torsion spring to act; the lower end of the stop piece is connected with the torsion spring shaft, the upper end of the stop piece is provided with a fuse link, the stop piece is connected with the second vertical hinge piece through the fuse link, and when the fuse link is fused, the stop piece is pressed on the large valve clack under the action of the torsion spring; the surface of the big valve clack is provided with a stop clamping protrusion matched with the stop sheet, and when the stop sheet is pressed on the big valve clack, the stop sheet is propped against the stop clamping protrusion to prop the big valve clack.
2. The fire check valve for cooking fumes of claim 1, wherein: and the first vertical hinge piece is provided with an adjusting screw, and the length of the adjusting screw penetrating out of the first vertical hinge piece is adjusted to adjust the size of the small valve opening and the wind direction.
3. The fire check valve for cooking fumes of claim 1 or 2, wherein: when the large valve clack is in an open state, the large valve clack is in contact with the fuse link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910201003.4A CN109838603B (en) | 2019-03-18 | 2019-03-18 | Oil smoke discharging fireproof check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910201003.4A CN109838603B (en) | 2019-03-18 | 2019-03-18 | Oil smoke discharging fireproof check valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109838603A CN109838603A (en) | 2019-06-04 |
| CN109838603B true CN109838603B (en) | 2020-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910201003.4A Active CN109838603B (en) | 2019-03-18 | 2019-03-18 | Oil smoke discharging fireproof check valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN109838603B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4628954A (en) * | 1985-03-28 | 1986-12-16 | Rachels Industries, Inc. | Multi-use damper |
| CN205245289U (en) * | 2015-12-11 | 2016-05-18 | 杭州蓝臣科技有限公司 | Can unpick and wash oil smoke check valve installation component of maintenance fast |
| CN205479533U (en) * | 2016-01-27 | 2016-08-17 | 耿立根 | Grease proofing cigarette flows backward check valve |
| CN207230690U (en) * | 2017-10-12 | 2018-04-13 | 杭州老板电器股份有限公司 | Fire-preventing check valve and central cooking fume control equipment |
| CN207584092U (en) * | 2017-11-07 | 2018-07-06 | 宁波方太厨具有限公司 | A kind of fireproof check valve for flue with double valve sheet |
| CN207830643U (en) * | 2017-12-15 | 2018-09-07 | 杭兆全 | Oil-smoke-exhausting fireproof check valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1186565C (en) * | 2002-07-01 | 2005-01-26 | 宁波方太厨具有限公司 | Air discharging cover for oil soot exhauster |
-
2019
- 2019-03-18 CN CN201910201003.4A patent/CN109838603B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4628954A (en) * | 1985-03-28 | 1986-12-16 | Rachels Industries, Inc. | Multi-use damper |
| CN205245289U (en) * | 2015-12-11 | 2016-05-18 | 杭州蓝臣科技有限公司 | Can unpick and wash oil smoke check valve installation component of maintenance fast |
| CN205479533U (en) * | 2016-01-27 | 2016-08-17 | 耿立根 | Grease proofing cigarette flows backward check valve |
| CN207230690U (en) * | 2017-10-12 | 2018-04-13 | 杭州老板电器股份有限公司 | Fire-preventing check valve and central cooking fume control equipment |
| CN207584092U (en) * | 2017-11-07 | 2018-07-06 | 宁波方太厨具有限公司 | A kind of fireproof check valve for flue with double valve sheet |
| CN207830643U (en) * | 2017-12-15 | 2018-09-07 | 杭兆全 | Oil-smoke-exhausting fireproof check valve |
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| Publication number | Publication date |
|---|---|
| CN109838603A (en) | 2019-06-04 |
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