CN109990118A - A kind of double valve sheet fireproof check valve for flue - Google Patents
A kind of double valve sheet fireproof check valve for flue Download PDFInfo
- Publication number
- CN109990118A CN109990118A CN201711482306.5A CN201711482306A CN109990118A CN 109990118 A CN109990118 A CN 109990118A CN 201711482306 A CN201711482306 A CN 201711482306A CN 109990118 A CN109990118 A CN 109990118A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve block
- gear
- flue
- button bar
- Prior art date
- 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.)
- Withdrawn
Links
- 230000001360 synchronised effect Effects 0.000 claims abstract description 9
- 238000013459 approach Methods 0.000 claims abstract description 6
- 238000010304 firing Methods 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000000779 smoke Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
-
- 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
- F16K15/00—Check valves
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
-
- 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
- F16K17/36—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
- F16K17/386—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 closure members being rotatable or pivoting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2021—Arrangement or mounting of control or safety systems
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
A kind of double valve sheet fireproof check valve for flue, including valve body, the first valve block and the second valve block, it is characterized by: being equipped with the synchronization mechanism that can make the first valve block, the second valve block synchronous opening/closing on valve body, button bar and temperature-sensing element are also equipped on valve body, in normal operation, button bar limit is detached from the first valve block and the second valve block on the temperature-sensing element, under flue firing condition, the button bar is detached from temperature-sensing element and can exert a force the first valve block and approach to turn off the first valve block, and then the close synchronously of the second valve block is realized in the case where synchronization mechanism is driven.The present invention has the advantages that the double valve sheet fireproof check valve for flue has the synchronization mechanism that can make the first valve block, the second valve block synchronous opening/closing, the synchronous opening/closing of first valve block and the second valve block is realized by the synchronization mechanism, the fire-preventing check valve structure is more novel, and the opening and closing synchronism of the first valve block and the second valve block is good.
Description
Technical field
The present invention relates to a kind of fire resisting dampers, more particularly, to a kind of double valve sheet fireproof check valve for flue.
Background technique
In the kitchen using longitudinal public gas flue, the oil smoke in gas flue is blowed back into kitchen in order to prevent, is taking 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 the air outlet of oil smoke channel able to turn on or off
Valve block, valve block is rotatably installed on the inner wall in oil smoke channel by horizontally disposed valve block shaft.When not using kitchen ventilator,
Since self 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 sets, 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 pours in longitudinal public gas flue, 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.
The various fire-preventing check valves with double valve sheet, such as Patent No. are had been disclosed in the prior art
" a kind of flue is non-return disclosed in the Chinese invention patent of 200910017260.9 (Authorization Notice No. is 101608702 B of CN)
Fire resisting damper ", which includes the oil smoke channel being made of shell, and oil smoke channel has opposite air inlet and goes out
Air port is provided with valve block in oil smoke channel, and valve block is the two panels being oppositely arranged, and valve block is spindle rotationally arranged in by valve block shaft
In oil smoke channel, the resistance that open two panels valve block can only to direction of air outlet is provided with close to air inlet one end in oil smoke channel
Block body, is equipped with close to air inlet side in oil smoke channel air inlet being divided into two-part longitudinally disposed connection strap, and valve block turns
For axis close to the connection strap, connection strap closes dress towards being provided with the high temperature that valve block can be made to forcibly close on the side of air outlet
It sets.For another example application No. is the Chinese invention patent application institutes of 201510205944.7 (application publication number is 104819324 A of CN)
Disclosed " a kind of kitchen ventilator fire resisting damper ", the fire resisting damper also have there are two valve block, install in the installation axle of oil smoke channel interior
There are the first torsional spring and the second torsional spring, the first torsional spring acts on rotation valve block always and air inlet is made to have the trend approached to turn off,
Second torsional spring only just acts on rotation valve block in the case where temperature control chip fuses and approaches to turn off air inlet.Above-mentioned double valve sheet
Check (non-return) valve at work, cannot ensure two valve block synchronous on-offs.In conclusion needing the fire-preventing check valve to existing double valve sheet
Structure is further improved.
Summary of the invention
The technical problem to be solved by the present invention is to for above-mentioned state of the art and can be ensured by providing one kind by two
Valve block is capable of the double valve sheet fireproof check valve for flue of synchronous on-off.
The technical scheme of the invention to solve the technical problem is: the double valve sheet fireproof check valve for flue, including
Valve body, the first valve block and the second valve block, it is characterised in that: being equipped on the valve body can make the first valve block, the second valve block same
The synchronization mechanism for walking opening and closing, is also equipped with button bar and temperature-sensing element on the valve body, in normal operation, the button bar
Limit is detached from the first valve block and the second valve block on the temperature-sensing element, and under flue firing condition, the button bar is detached from sense
Warm element can simultaneously exert a force first valve block and approach to turn off the first valve block, and then realize institute under synchronization mechanism transmission
State the close synchronously of the second valve block.
Synchronization mechanism can be with various structures, it is preferable that the synchronization mechanism includes left gear, intermediate gear and right tooth
Wheel, the left gear are meshed with intermediate gear, and the intermediate gear is meshed with right gear, installs on first valve block
There is the first fixed link, the second fixed link is installed on second valve block, first fixed link is connected to the left gear
Gear shaft on, second fixed link is connected on the gear shaft of the right gear.
Further preferably, gear fixed frame is installed on the valve body, the left gear, intermediate gear and right gear
Gear shaft is mounted on the gear fixed frame.
In order to be installed, be positioned to gear, gear fixed frame, the left gear, centre are installed on the valve body
The gear shaft of gear and right gear is mounted on the gear fixed frame.
There are many mounting structures for button bar, it is preferable that the button bar is set to the outside portion of first valve block, the top of button bar
On the temperature-sensing element, the bottom of button bar, which is equipped with, makes button bar maintain the torsional spring for being detached from temperature-sensing element trend for limit.
Further preferably, the button bar is square, and the mandril of the button bar limits on the temperature-sensing element, described
The torsional spring is installed on the bottom bar of button bar.
Further preferably, first valve block and the second valve block have mutually overlapped clinch in closed state, and
The clinch and the first valve block, the second valve block body part between be formed with step structure.
In order to guarantee the first valve block, the second valve block No leakage in the off state, flue taint of odour is prevented, in first valve
The clinch of piece and the second valve block is equipped with gasket.
It is more reliable in order to close the first valve block and the second valve block, it is equipped on the valve body for the first valve is sucked
The magnet of piece and the second valve block.
As the preferred of any of the above-described scheme, under Normal Shutdown state, first valve block and the second valve block level are set
It sets, during normally-open, first valve block and the second valve block sync up unlatching.
The first valve can be made by having compared with the prior art, the advantages of the present invention are as follows: the double valve sheet fireproof check valve for flue
The synchronization mechanism of piece, the second valve block synchronous opening/closing, in normal operation, button bar limit are detached from first on temperature-sensing element
Valve block and the second valve block, under flue firing condition, button bar is detached from temperature-sensing element and can exert a force the first valve block and make the first valve block
It approaches to turn off, and then realizes the close synchronously of the second valve block under synchronization mechanism transmission, it is seen that the fire-preventing check valve structure is more
Novelty, the first valve block and the second valve block can be opened simultaneously and be closed, and synchronism is good.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the embodiment of the present invention under Normal Shutdown state；
Fig. 2 is structural schematic diagram of the embodiment of the present invention under Normal on state；
Fig. 3 is structural schematic diagram of the embodiment of the present invention under flue firing condition.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
As shown in Figure 1 to Figure 3, the double valve sheet fireproof check valve for flue in the present embodiment includes valve body 1, the first valve block 2,
The primary clusterings such as two valve blocks 3, synchronization mechanism 4, button bar 5, temperature-sensing element 6, the first fixed link 71, the second fixed link 72, torsional spring 8.
Under Normal Shutdown state, the first valve block 2 and the second valve block 3 are symmetrically horizontally disposed with relative to the middle line of valve body 1,
During normally-open, the first valve block 2 and the second valve block 3 pass through synchronization mechanism 4 and sync up opening and closing.
The synchronization mechanism 4 of the present embodiment includes that left gear 41, intermediate gear 42, right gear 43, gear shaft 44 and gear are solid
Determine frame 45, wherein left gear 41, intermediate gear 42 are identical with 43 model of right gear, and left gear 41 is meshed with intermediate gear 42,
Intermediate gear 42 is meshed with right gear 43.First fixed link 71 is mounted on the first valve block 2, and the second fixed link 72 is mounted on
Two valve blocks 3, also, the first fixed link 71 is connected on the gear shaft 44 of left gear 41, and the second fixed link 72 is connected to right gear
On 43 gear shaft 44, the gear shaft 44 of left gear 41, intermediate gear 42 and right gear 43 is installed on gear fixed frame 45.
In this way, the first valve block 2,3 synchronous opening/closing of the second valve block can be made by above-mentioned synchronization mechanism 4.
Button bar 5 is set to the outside portion of the first valve block 2, and button bar 5 is square, and temperature-sensing element 6 uses temperature control chip, temperature control chip installation
On valve body 1, the mandril limit of button bar 5 is detached from the first valve block 2 in temperature control chip and the second valve block 3, torsional spring 8 are mounted on button bar
On 5 bottom bar, torsional spring 8 makes button bar 5 maintain the trend for being detached from temperature control chip.
First valve block 2 and the second valve block 3 have that mutually overlapped in closed state clinch 9, in order to guarantee the first valve
Piece 2, the second valve block 3 No leakage in the off state, prevent flue taint of odour, the clinch 9 and the first valve block 2, the second valve block 3
It is formed with step structure between body part, gasket is installed in clinch 9.In addition, in order to make the first valve block 2 and the second valve block
3 closings are more reliable, and the magnet (not shown) for the first valve block 2 and the second valve block 3 is sucked is equipped on valve body 1.
The course of work of the fire-preventing check valve is as follows:
Under normal operating conditions, temperature-sensing element 6 cannot be deformed by high temperature, and button bar 5 is limited in temperature-sensing element 6
Upper and stationary, button bar 5 is detached from the first valve block 2 and the second valve block 3, at this point, if range hood works, 2 He of the first valve block
Second valve block 3 can be normally-open, and maximum opening angle is 90 °, when range hood does not work, the first valve block 2 and second
Valve block 3 is closed by self gravity, and the first valve block 2 and the second valve block 3 are sucked the magnet on valve body 1, turn off and more may be used
It leans on.
Under flue firing condition, temperature-sensing element 6 can will be limited in button bar 5 therein and release because high temperature generates deformation or fusing
It puts, button bar 5 downwardly turns under the action of torsional spring 8, and forces in the first valve block 2 and approach to turn off the first valve block 2, the first valve
Piece 2 during the shutdown process, drives left gear 41 to rotate, meanwhile, left gear 41 passes through the intermediate gear 42 being meshed and drives right tooth
43 rotation of wheel, and then 3 close synchronously of the second valve block is driven by right gear 43.
Claims (10)
1. a kind of double valve sheet fireproof check valve for flue, including valve body (1), the first valve block (2) and the second valve block (3), feature exists
In: the synchronization mechanism (4) that can make the first valve block (2), the second valve block (3) synchronous opening/closing is installed on the valve body (1), in institute
It states and is also equipped with button bar (5) and temperature-sensing element (6) on valve body (1), in normal operation, button bar (5) limit is in institute
It states on temperature-sensing element (6) and is detached from the first valve block (2) and the second valve block (3), under flue firing condition, the button bar (5) is de-
From temperature-sensing element (6) and it can exert a force first valve block (2) and approach to turn off the first valve block (2), and then in the synchronous machine
The lower close synchronously for realizing second valve block (3) of structure (4) transmission.
2. double valve sheet fireproof check valve for flue according to claim 1, it is characterised in that: synchronization mechanism (4) packet
Left gear (41), intermediate gear (42) and right gear (43) are included, the left gear (41) is meshed with intermediate gear (42), described
Intermediate gear (42) is meshed with right gear (43), the first fixed link (71) is equipped on first valve block (2), described
It is equipped on second valve block (3) the second fixed link (72), first fixed link (71) is connected to the tooth of the left gear (41)
On wheel shaft (44), second fixed link (72) is connected on the gear shaft (44) of the right gear (43).
3. double valve sheet fireproof check valve for flue according to claim 2, it is characterised in that: installed on the valve body (1)
Have gear fixed frame (45), the gear shaft (44) of the left gear (41), intermediate gear (42) and right gear (43) is mounted on institute
On the gear fixed frame (45) stated.
4. double valve sheet fireproof check valve for flue according to claim 2, it is characterised in that: the left gear (41), centre
Gear (42) is identical with right gear (43) structure and size.
5. double valve sheet fireproof check valve for flue according to claim 1, it is characterised in that: the button bar (5) is set to described
The outside portion of first valve block (2), the upper limit of button bar (5) on the temperature-sensing element (6), install by the bottom of button bar (5)
There is the torsional spring (8) for making button bar maintain temperature-sensing element (6) trend of disengaging.
6. double valve sheet fireproof check valve for flue according to claim 5, it is characterised in that: the button bar (5) is square,
The mandril of the button bar (5) limits on the temperature-sensing element (6), and the torsion is equipped on the bottom bar of the button bar (5)
Spring (8).
7. double valve sheet fireproof check valve for flue according to claim 1, it is characterised in that: first valve block (2) and
Two valve blocks (3) have mutually overlapped clinch (9), and the clinch (9) and the first valve block, the second valve block in closed state
Body part between be formed with step structure.
8. double valve sheet fireproof check valve for flue according to claim 7, it is characterised in that: in first valve block (2) and
The clinch (9) of second valve block (3) is equipped with gasket.
9. double valve sheet fireproof check valve for flue according to claim 1, it is characterised in that: installed on the valve body (1)
There is the magnet for the first valve block (2) and the second valve block (3) is sucked.
10. according to claim 1 to double valve sheet fireproof check valve for flue described in any claim in 9, it is characterised in that:
Under Normal Shutdown state, first valve block (2) and the second valve block (3) are horizontally disposed, during normally-open, described first
Valve block (2) and the second valve block (3) sync up unlatching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711482306.5A CN109990118A (en) | 2017-12-29 | 2017-12-29 | A kind of double valve sheet fireproof check valve for flue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711482306.5A CN109990118A (en) | 2017-12-29 | 2017-12-29 | A kind of double valve sheet fireproof check valve for flue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109990118A true CN109990118A (en) | 2019-07-09 |
Family
ID=67109095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711482306.5A Withdrawn CN109990118A (en) | 2017-12-29 | 2017-12-29 | A kind of double valve sheet fireproof check valve for flue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109990118A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594435A (en) * | 2019-09-06 | 2019-12-20 | 宁波方太厨具有限公司 | Fire-proof valve for range hood |
-
2017
- 2017-12-29 CN CN201711482306.5A patent/CN109990118A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594435A (en) * | 2019-09-06 | 2019-12-20 | 宁波方太厨具有限公司 | Fire-proof valve for range hood |
| CN110594435B (en) * | 2019-09-06 | 2021-07-23 | 宁波方太厨具有限公司 | Fire-proof valve for range hood |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190709 |
|
| WW01 | Invention patent application withdrawn after publication |