CN207584092U - A kind of fireproof check valve for flue with double valve sheet - Google Patents
A kind of fireproof check valve for flue with double valve sheet Download PDFInfo
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- CN207584092U CN207584092U CN201721473291.1U CN201721473291U CN207584092U CN 207584092 U CN207584092 U CN 207584092U CN 201721473291 U CN201721473291 U CN 201721473291U CN 207584092 U CN207584092 U CN 207584092U
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- flue
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Abstract
A kind of fireproof check valve for flue with double valve sheet, including pedestal, valve body, outer cover, first valve block and the second valve block, first valve block is mounted on the first valve shaft, second valve block is mounted on the second valve shaft, the end of first valve shaft and the second valve shaft is separately installed with intermeshing first gear and second gear, temperature control chip is additionally provided with inside outer cover, first button bar, second button bar and elastic component, under normal operating condition, first button bar and the limiting of the second button bar are detached from the first valve block and the second valve block in temperature control chip, under flue firing condition, first button bar and the second button bar are detached from temperature control chip and close the first valve block and the second valve block respectively under the action of elastic component.The check-valves in the end of the first valve shaft and the second valve shaft by installing the first gear and second gear that mutually engage, the first valve block and the second valve block is enable to open simultaneously and close, and the energy positive closing under the action of button bar and elastic component, and then effectively separate kitchen ventilator smoke pipe and common flue.
Description
Technical field
The utility model is related to a kind of fire resisting damper, more particularly, to a kind of fireproof check valve for flue with double valve sheet.
Background technology
In the kitchen for using the public gas flue in longitudinal direction, the oil smoke in gas flue is blowed back into kitchen in order to prevent, is being taken out
The device as check valve for flue is both provided between the outlet mouth of pipe of kitchen ventilator and public gas flue.Existing flue is non-return
Valve generally comprises the oil smoke channel being made of shell, which has opposite air inlet and air outlet, connects on air inlet
The outlet mouth of pipe of smoke exhaust ventilator is connect, air outlet is extend into public gas flue, is provided at oil smoke channel air outlet able to turn on or off
Valve block, valve block is rotatably installed in by horizontally disposed valve block shaft on the inner wall of oil smoke channel.When without using kitchen ventilator,
Since its own gravity is in the closed position, valve block is covered in outlet air oral area valve block；When using kitchen ventilator, valve block is in open position
It puts, valve block is far from air outlet.Due to the public public gas flue in a longitudinal direction of more users, once fire occurs for single household, greatly
The high-temperature harmful gas of amount is poured in the public gas flue in longitudinal direction, at this time if closing the valve block in check valve for flue not in time, this
A little a large amount of high-temperature harmful gas can be entered by the oil smoke channel of check valve for flue to be used in the user family of kitchen ventilator, from
And threaten the life security of resident family.
The various fire-preventing check valves with double valve sheet, such as Patent No. are had been disclosed in the prior art
Disclosed in the Chinese invention patent of 200910017260.9 (Authorization Notice No. is 101608702 B of CN)《A kind of flue stops
Inverse fire resisting damper》, which includes the oil smoke channel that is made of shell, oil smoke channel have opposite air inlet and
Air outlet is provided with valve block in oil smoke channel, and valve block is the two panels being oppositely arranged, and valve block is rotatably set by valve block shaft
In oil smoke channel, being provided in oil smoke channel close to air inlet one end makes what two panels valve block can only be opened to air outlet direction
Stop body, be equipped in oil smoke channel close to air inlet side and air inlet is divided into two-part longitudinally disposed connection strap, valve block
For shaft close to the connection strap, connection strap can close the high temperature of valve block positive closing towards being provided on the side of air outlet
Device.For another example application No. is the Chinese invention patent applications of 201510205944.7 (application publication number is 104819324 A of CN)
Disclosed《A kind of kitchen ventilator fire resisting damper》, which also has there are two valve block, pacifies in the installation axle of oil smoke channel interior
Equipped with the first torsional spring and the second torsional spring, the first torsional spring acts on rotation valve block and air inlet is made to have what is approached to turn off to become always
Gesture, the second torsional spring only just act on rotation valve block in the case where temperature control chip fuses and approach to turn off air inlet.It is above-mentioned double
Valve block check (non-return) valve is at work, it is impossible to ensure two valve block synchronous on-offs.In conclusion need to stop the fire prevention of existing double valve sheet
Valve arrangement is returned to be further improved.
Utility model content
Technical problem to be solved in the utility model be for the above-mentioned prior art present situation and one kind is provided and can be ensured that
Two valve blocks are capable of the fireproof check valve for flue with double valve sheet of synchronous on-off.
Technical solution is used by the utility model solves above-mentioned technical problem：The flue fire prevention with double valve sheet stops
Valve is returned, including pedestal, valve body, outer cover, the first valve block and the second valve block, the outer cover is mounted on pedestal, the valve body installation
Inside outer cover, the first valve block and the second valve block are set on inside outer cover and can be rotated relative to valve body, it is characterised in that：Described first
Valve block is mounted on the first valve shaft, and second valve block is mounted on the second valve shaft, first valve shaft and the second valve
The end of bobbin is separately installed with intermeshing first gear and second gear, be additionally provided with inside the outer cover temperature control chip,
First button bar, the second button bar and elastic component, under check-valves normal operating condition, first button bar and the limiting of the second button bar exist
First valve block and the second valve block are detached from the temperature control chip, under flue firing condition, first button bar and
Second button bar is detached from temperature control chip and closes first valve block and the second valve block respectively under the action of the elastic component.
Elastic component can be there are many structure, it is preferable that and the elastic component includes the first tension spring and the second tension spring, and described the
The first end of one button bar is rotatably connected on the valve body, the second end of the first button bar limit in the temperature control chip and with it is described
The free end of first tension spring is connected, and the first end of second button bar is rotatably connected on the valve body, and the of the second button bar
The limiting of two ends is connected in the temperature control chip and with the free end of second tension spring.
Further preferably, the first guiding trestle and the second guiding trestle on the valve body are installed, led described first
The first guide groove for being oriented to the movement of the first button bar is provided on stent, is provided on second guiding trestle
For the second guide groove being oriented to the movement of the second button bar.
Guiding trestle can be with a variety of concrete structures, it is preferable that first guiding trestle is arc-shaped and set on described first
The outside on valve block periphery, second guiding trestle is arc-shaped and is set on the outside on the second valve block periphery.
Preferably, temperature control plate rack is installed on the valve body, the temperature control chip is mounted on the temperature control plate rack
On.
In order to which the first valve shaft and the second valve shaft is enable reliably to limit, respectively it is equipped in the both sides up and down of the valve body
The both ends of valve block bracing strut, first valve shaft and the second valve shaft are separately mounted on the valve block bracing strut of respective side.
In order to solve the sealing problem of bivalve chip architecture, it is equipped on first valve block and the second valve block for
The diaphragm seal that gap between one valve block and the second valve block is sealed.
Further preferably, the diaphragm seal is mounted on the medial surface of the first valve block and the second valve block.
In order to be fully opened, first valve the reason of making the first valve block and the second valve block will not be because of gravity
Bobbin and the second valve shaft are mutually parallel and vertically arranged, accordingly, first valve block and the second valve block laterally open and
It closes.
The maximum opening angle of further preferred first valve block and the second valve block is 90 °.
Compared with prior art, the utility model has the advantage of：The fireproof check valve for flue with double valve sheet is
The end of one valve shaft and the second valve shaft is separately installed with intermeshing first gear and second gear, normal in check-valves
Under use state, the first button bar and the limiting of the second button bar are detached from the first valve block and the second valve block in temperature control chip, are risen in flue
Under fiery state, the first button bar and the second button bar are detached from temperature control chip and close the first valve block and second respectively under the action of elastic component
Valve block, the first valve block and the second valve block can be opened simultaneously and be closed, and synchronism is good, and can quilt under the action of button bar and elastic component
Positive closing, and then effectively separate kitchen ventilator smoke pipe and common flue, prevent smoke pipe on fire.
Description of the drawings
Fig. 1 is structure diagram of the utility model embodiment when normal operating condition lower disc is closed；
Fig. 2 is the structure diagram of another angles of Fig. 1；
Fig. 3 is to remove the structure diagram after pedestal and outer cover in Fig. 1；
Fig. 4 is the structure diagram of another angles of Fig. 3；
Fig. 5 is structure diagram of the utility model embodiment when normal operating condition lower disc is opened；
Fig. 6 is structure diagram of the utility model embodiment under valve block positive closing state.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing embodiment.
As shown in Figures 1 to 6, the fireproof check valve for flue with double valve sheet in the present embodiment includes pedestal 1, valve body
2nd, outer cover 3, the first valve block 41, the second valve block 42, the first valve shaft 51, the second valve shaft 52, first gear 61, second gear
62nd, the first button bar 71, the second button bar 72, the first tension spring 81, the second tension spring 82, the first guiding trestle 91, the second guiding trestle
92nd, the components such as temperature control plate rack 10, temperature control chip 11, valve block bracing strut 12 and diaphragm seal 13.
Wherein, outer cover 3 is mounted on pedestal 1, and valve body 2 is mounted on inside outer cover 3.First valve block 41 is mounted on the first valve block
On axis 51, the second valve block 42 is mounted on the second valve shaft 52, and the end of the first valve shaft 51 and the second valve shaft 52 is pacified respectively
Equipped with intermeshing first gear 61 and second gear 62, thus assure that the first valve block 41 can be synchronous with the second valve block 42
Folding.The two of valve block bracing strut 12 there are one respectively being installed in the both sides up and down of valve body 2, the first valve shaft 51 and the second valve shaft 52
End is separately mounted on the valve block bracing strut 12 of respective side.
In the present embodiment, the first valve shaft 51 and the second valve shaft 52 are mutually parallel and vertically arranged, in this way, the first valve block
41 and second valve block 42 laterally open and close, and the maximum opening angle of the first valve block 41 and the second valve block 42 can reach
90 °, so as to be conducive to improve smoke discharging effect.
Temperature control plate rack 10 is mounted on the valve body bracing strut 12 of upside, and temperature control chip 11 is mounted on temperature control plate rack 10.
In the present embodiment, flexible bimetal leaf when reaching certain temperature may be used in temperature control chip 11, can also use and reach certain
The fuse link that can be fused during temperature.
The first end of first button bar 71 is rotatably connected on valve body 2, and the second end of the first button bar 71 is limited in temperature control chip 11
Above and with the free end of the first tension spring 81 it is connected, the fixing end of the first tension spring 81 is connected on valve body 2；Second button bar 72
First end is rotatably connected on valve body 2, the second end of the second button bar 72 limit in temperature control chip 11 and with the second tension spring 82 from
It is connected by end, the fixing end of the second tension spring 82 is connected on valve body 2.
First guiding trestle 91 and the second guiding trestle 92 are mounted on valve body 2, and the first guiding trestle 91 is arc-shaped and sets
In the outside on 41 periphery of the first valve block, 92 outside arc-shaped and set on 42 periphery of the second valve block of the second guiding trestle.First
The first guide groove 911 for being oriented to the movement of the first button bar 71 is provided on guiding trestle 91, in the second guiding trestle
The second guide groove 921 for being oriented to the movement of the second button bar 72 is provided on 92.
In addition, in order to solve the sealing problem in the gap between the first valve block 41 and the second valve block 42, in the present embodiment,
Diaphragm seal 13, the first valve block 41 and the second valve block 42 are installed towards use on the medial surface of first valve block 41 and the second valve block 42
The side of family smoke pipe side is medial surface, and the diaphragm seal 13 of the present embodiment uses silica gel sealing piece, it is ensured that under valve block closed state,
Flue gas in flue will not enter inside the smoke pipe of user side.
The course of work of the anti-fire check valve is as follows：
Under check-valves normal operating condition, the first button bar 71 mutually closes up with the second button bar 72 respectively close to the first valve shaft
51 and second valve shaft 52, and the first button bar 71 and the second button bar 72 are mutually parallel, the first button bar 71 and the second button bar 72 limit
The first valve block 41 and the second valve block 42 are detached from temperature control chip 11.Under flue firing condition, the first button bar 71 and the second button
After bar 72 is detached from temperature control chip 11, the first button bar 71 moves down under the action of the first tension spring 81 along the first guide groove 911, from
And the first valve block 41 is closed, meanwhile, the second button bar 72 is under the action of the second tension spring 82 along the second guide groove 921 to moving down
It is dynamic, so as to close the second valve block 42.
Above description is merely a prefered embodiment of the utility model, it is noted that for those of ordinary skill in the art
For, under the premise of the principle of the utility model is not departed from, a variety of remodeling or improvement can be carried out to the utility model, these are
It is considered as within the scope of protection of the utility model.
Claims (9)
1. a kind of fireproof check valve for flue with double valve sheet, including pedestal (1), valve body (2), outer cover (3), the first valve block (41)
With the second valve block (42), the outer cover (3) is on pedestal (1), and the valve body (2) is internal mounted on outer cover (3), the first valve
Piece (41) and the second valve block (42) are rotated set on the internal simultaneously energy of outer cover (3) relative to valve body (2), it is characterised in that：First valve
Piece (41) is on the first valve shaft (51), and second valve block (42) is on the second valve shaft (52), and described first
The end of valve shaft (51) and the second valve shaft (52) is separately installed with intermeshing first gear (61) and second gear
(62), temperature control chip (11), the first button bar (71), the second button bar (72) and elastic component are additionally provided with inside the outer cover (3), only
It returns under valve normal operating condition, first button bar (71) and the second button bar (72) limiting take off in the temperature control chip (11)
From first valve block (41) and the second valve block (42), under flue firing condition, first button bar (71) and the second button
Bar (72) is detached from temperature control chip (11) and closes first valve block (41) and the second valve block respectively under the action of the elastic component
(42)。
2. the fireproof check valve for flue according to claim 1 with double valve sheet, it is characterised in that：The elastic component packet
The first tension spring (81) and the second tension spring (82) are included, the first end of first button bar (71) is rotatably connected on the valve body (2),
The second end of first button bar (71) is limited in the temperature control chip (11) and is connected with the free end of first tension spring (81),
The first end of second button bar (72) is rotatably connected on the valve body (2), and the second end of the second button bar (72) is limited in institute
It states in temperature control chip (11) and is connected with the free end of second tension spring (82).
3. the fireproof check valve for flue according to claim 2 with double valve sheet, it is characterised in that：In the valve body (2)
On the first guiding trestle (91) and the second guiding trestle (92) are installed, be provided on first guiding trestle (91) for right
The first guide groove (911) that the movement of first button bar (71) is oriented to, be provided on second guiding trestle (92) for
The second guide groove (921) being oriented to the movement of the second button bar (72).
4. the fireproof check valve for flue according to claim 3 with double valve sheet, it is characterised in that：Described first is oriented to branch
Frame (91) is arc-shaped and is set on the outside on the first valve block (41) periphery, and second guiding trestle (92) is arc-shaped and is set on
The outside on the second valve block (42) periphery.
5. the fireproof check valve for flue according to claim 1 with double valve sheet, it is characterised in that：In the valve body (2)
Both sides up and down valve block bracing strut (12) is respectively installed, the both ends difference of first valve shaft (51) and the second valve shaft (52)
On the valve block bracing strut (12) of respective side.
6. the fireproof check valve for flue according to claim 1 with double valve sheet, it is characterised in that：In first valve block
(41) and on the second valve block (42) diaphragm seal being sealed for the gap between the first valve block and the second valve block is installed
(13)。
7. the fireproof check valve for flue according to claim 6 with double valve sheet, it is characterised in that：The diaphragm seal (13)
On the medial surface of the first valve block (41) and the second valve block (42).
8. the fireproof check valve for flue with double valve sheet according to any claim in claim 1 to 7, feature exist
In：First valve shaft (51) and the second valve shaft (52) is mutually parallel and vertically arranged, accordingly, first valve
Piece (41) and the second valve block (42) laterally open and close.
9. the fireproof check valve for flue according to claim 8 with double valve sheet, it is characterised in that：First valve block
(41) and the maximum opening angle of the second valve block (42) is 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721473291.1U CN207584092U (en) | 2017-11-07 | 2017-11-07 | A kind of fireproof check valve for flue with double valve sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721473291.1U CN207584092U (en) | 2017-11-07 | 2017-11-07 | A kind of fireproof check valve for flue with double valve sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207584092U true CN207584092U (en) | 2018-07-06 |
Family
ID=62731341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721473291.1U Active CN207584092U (en) | 2017-11-07 | 2017-11-07 | A kind of fireproof check valve for flue with double valve sheet |
Country Status (1)
| Country | Link |
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| CN (1) | CN207584092U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185520A (en) * | 2018-11-06 | 2019-01-11 | 陈开兵 | A kind of fireproof check valve for combined flue |
| CN109751437A (en) * | 2017-11-07 | 2019-05-14 | 宁波方太厨具有限公司 | A kind of fireproof check valve for flue with double valve sheet |
| CN109838603A (en) * | 2019-03-18 | 2019-06-04 | 李永彬 | Oil-smoke-exhausting fireproof check valve |
| CN109945256A (en) * | 2019-03-07 | 2019-06-28 | 佛山市顺德区美的洗涤电器制造有限公司 | Valve module for kitchen ventilator and the kitchen ventilator with it |
-
2017
- 2017-11-07 CN CN201721473291.1U patent/CN207584092U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751437A (en) * | 2017-11-07 | 2019-05-14 | 宁波方太厨具有限公司 | A kind of fireproof check valve for flue with double valve sheet |
| CN109751437B (en) * | 2017-11-07 | 2024-01-16 | 宁波方太厨具有限公司 | Flue fireproof check valve with double valve plates |
| CN109185520A (en) * | 2018-11-06 | 2019-01-11 | 陈开兵 | A kind of fireproof check valve for combined flue |
| CN109185520B (en) * | 2018-11-06 | 2024-05-07 | 陈开兵 | Combined type flue fireproof check valve |
| CN109945256A (en) * | 2019-03-07 | 2019-06-28 | 佛山市顺德区美的洗涤电器制造有限公司 | Valve module for kitchen ventilator and the kitchen ventilator with it |
| CN109838603A (en) * | 2019-03-18 | 2019-06-04 | 李永彬 | Oil-smoke-exhausting fireproof check valve |
| CN109838603B (en) * | 2019-03-18 | 2020-05-22 | 李永彬 | Oil smoke discharging fireproof check valve |
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