CN109990120A - 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
- CN109990120A CN109990120A CN201711478540.0A CN201711478540A CN109990120A CN 109990120 A CN109990120 A CN 109990120A CN 201711478540 A CN201711478540 A CN 201711478540A CN 109990120 A CN109990120 A CN 109990120A
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- Prior art keywords
- valve
- block
- valve block
- movable block
- fixed
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- 230000000712 assembly Effects 0.000 claims abstract description 6
- 238000000429 assembly Methods 0.000 claims abstract description 6
- 230000006835 compression Effects 0.000 claims description 23
- 238000007906 compression Methods 0.000 claims description 23
- 238000007789 sealing Methods 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 abstract description 5
- 238000010304 firing Methods 0.000 abstract description 4
- 239000000779 smoke Substances 0.000 description 15
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 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
- F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
- F16K15/035—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member with a plurality of valve members
- F16K15/036—Dual valve members with hinges crossing the flow line substantially diametrical
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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
- 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)
- Check Valves (AREA)
- Safety Valves (AREA)
Abstract
A kind of double valve sheet fireproof check valve for flue, including valve body, valve shaft, first valve block and the second valve block, fixed block and movable block are installed on the fixation bracket of valve body, it further include the temperature-sensing element for having the elastic component for making movable block keep oriented fixed block mobile trend and preventing movable block mobile to fixed block, two groups of depression bar assemblies for being respectively arranged on fixed bracket two sides are installed between fixed block and movable block, two groups of depression bar assemblies can synchronize opening under the drive of movable block and compress the first valve block and the second valve block, also can synchronizing close and release the active force to the first valve block and the second valve block.The present invention has the advantages that under flue firing condition, movable block can be detached from rapidly temperature-sensing element and close the first valve block and the second valve block after driving depression bar assembly is synchronous to open, under normal operating condition, movable block limit can release the active force to valve block and valve block can be made normally to be opened and closed after collapsing depression bar assembly on temperature-sensing element.
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 CN 101608702B)
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 CN 104819324A)
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, valve shaft, the first valve block and the second valve block, the valve shaft are mounted on the valve body, first valve block and second
Valve block is rotatably connected on the two sides of the valve shaft, it is characterised in that: fixed bracket is also equipped on the valve body, described
Fixed block and movable block are installed on fixed bracket, further include having the elastic component for making movable block keep oriented fixed block mobile trend
Temperature-sensing element with preventing movable block mobile to fixed block, is equipped with two groups between the fixed block and the movable block and is respectively arranged on
The depression bar assembly of fixed bracket two sides, two groups of depression bar assemblies can synchronize opening under the drive of movable block and the first valve block of compression with
Second valve block, also can synchronizing close and release the active force to the first valve block and the second valve block.
Depression bar assembly can have a variety of structures, it is preferable that depression bar assembly described in every group includes the first compression bar and the second pressure
Bar, first end and the fixed block of first compression bar are hinged, the first end of second compression bar and the movable block phase
Hingedly, the second end of first compression bar and the second end of the second compression bar are hinged.
In order to enable depression bar assembly reliably to compress valve block, it can be also detached from valve block, the depression bar assembly in the on-state can
Act on the middle section of first valve block, the second valve block, the depression bar assembly in closed state, the first compression bar and second
Compression bar draws close fixed bracket.
Elastic component can have a variety of structures, it is preferable that the elastic component is locking spring, and the both ends of locking spring are distinguished
It is fixedly connected on the fixed block and movable block.
Preferably, the temperature-sensing element is the temperature control chip that deformation or fusing can be generated under high temperature.
In order to which the movement to movable block limits, it is equipped on the fixed bracket for the shifting to the movable block
The dynamic limited block limited, the limited block are set between the fixed block and movable block.
Further preferably, the fixed bracket is in the shape of a rod, and the fixed bracket and valve shaft are set in the valve body
Between, fixed bracket is parallel to each other with valve shaft, and the depression bar assembly is set to the fixed bracket and valve shaft in closed state
Between.
In order to seal valve block normal switching-off Shi Nengyu valve body mutually, the valve block can be sucked by being equipped on the valve body
Magnet is also equipped with the sealing ring for mutually sealing with first valve block, the second valve block on the valve body.
Further preferably, the maximum opening angle of first valve block and the second valve block is 90 °.
As the preferred of any of the above-described scheme, the valve shaft is vertically arranged, and first valve block and the second valve block are lateral
It opens and closes, being equipped on the valve shaft makes the first valve block and the second valve block maintain the torsional spring of closure trend.
Compared with the prior art, the advantages of the present invention are as follows: the double valve sheet fireproof check valve for flue is in flue firing condition
Under, it is mobile to fixed block that movable block can be detached from rapidly temperature-sensing element, and closes the first valve block after driving depression bar assembly is synchronous to open
With the second valve block, under normal operating condition, movable block limit can be released after collapsing depression bar assembly on temperature-sensing element to valve block
Active force and valve block can be made normally to be opened and closed, it is seen that the fire-preventing check valve structure is more novel, the first valve block and the second valve block energy
It opens simultaneously and closes, synchronism is good, closes very reliable.
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；
Fig. 4 is the structural schematic diagram of the depression bar assembly of the embodiment of the present invention in the on-state；
Fig. 5 is the structural schematic diagram of the depression bar assembly of the invention tried in closed state.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
As shown in Figures 1 to 5, the double valve sheet fireproof check valve for flue in the present embodiment includes valve body 1, valve shaft 2, first
Valve block 3, the second valve block 4, fixed bracket 5, fixed block 6, movable block 7, depression bar assembly 8, locking spring 9, temperature control chip 10, limited block
11 and torsional spring 12.
Valve shaft 2 is mounted vertically in the centre of valve body 1, and the first valve block 3 and the second valve block 4 are symmetricly set on valve shaft 2
It two sides and is rotatably connected on valve shaft 2, being equipped on valve shaft 2 makes the first valve block 3 and the second valve block 4 maintain closure and become
The torsional spring 12 of gesture, the first valve block 3 and the second valve block 4 are able to achieve lateral opening and closing as a result,.In addition, in order to close valve block
It is more reliable, the magnet that the first valve block 3 and the second valve block 4 can be sucked is installed on valve body 1, is also equipped with use on valve body 1
Carry out the sealing ring sealed with the first valve block 3,4 phase of the second valve block.
The fixation bracket 5 of the present embodiment is rectangular rod-like structure in section, and fixed bracket 5 is located at the centre of valve body 1 simultaneously
It is arranged in parallel with valve shaft 2.Fixed block 6 and movable block 7 are mounted on fixed bracket 5 and along the length direction of fixed bracket 5
Distribution, wherein fixed block 6 is set to one end of fixed bracket 5, and temperature control chip 10 is mounted on the other end of fixed bracket 5, locking spring
9 are set on fixed bracket 5, and one end of locking spring 9 is connected on fixed block 6, and the other end of locking spring 9 is connected to activity
On block.Limited block 11 is mounted on fixed bracket 5, and limited block 11 is set between fixed block 6 and movable block 7, and is used to activity
The movement of block 7 is limited.
Locking spring 9 be tension spring and always have hold movable block 7 and make movable block 7 with to fixed block 6 move becoming
Gesture, when deformation occurs or fusing for temperature control chip 10, movable block 7 is limited in temperature control chip 10, at this point, movable block 7 is in most
On position far from fixed block 6, locking spring 9 is made to be in longest tensional state, locking spring 9 is most to the pulling force of movable block 7
Greatly.When temperature control chip 10 generates deformation or fusing because of high temperature, movable block 7 is detached from temperature control chip 10, and movable block 7 is in locking spring 9
It is mobile to fixed block 6 under pulling force effect, until movable block 7 is moved to and collides and stop motion with limited block 11.
Depression bar assembly 8 has two groups and is respectively arranged on the two sides of fixed bracket 5, i.e. the first valve block 3 and the second valve block 4 are respectively right
Ying Youyi group depression bar assembly 8.Every group of depression bar assembly 8 includes the first compression bar 81 and the second compression bar 82, the first end of the first compression bar 81
It is hinged with fixed block 6, first end and the movable block 7 of the second compression bar 82 are hinged, the second end of the first compression bar 81 and the second pressure
The second end of bar 82 is hinged, and two groups of depression bar assemblies 8 can synchronize opening and synchronizing close under the drive of movable block 7 as a result,.
When synchronous opening, depression bar assembly 8 acts on the middle section of the first valve block 3 and the second valve block 4, depression bar assembly 8 and the first valve block 3
It is larger with the contact surface of the second valve block 4, so that the first valve block 3 and the second valve block 4 is reliably closed；When synchronizing close, the first compression bar
81 and second compression bar 82 draw close fixed bracket 5, at this point, the hiding of depression bar assembly 8 is set between fixed bracket 5 and valve shaft 2, thus
The active force to the first valve block 3 and the second valve block 4 is released, keeps the first valve block 3 and the second valve block 4 normally-open.
The course of work of the fire-preventing check valve is as follows:
Under normal operating conditions, temperature control chip 10 cannot be deformed by high temperature, and movable block 7 limits in temperature control chip 10
And it is stationary, so that depression bar assembly 8 is in closed state, depression bar assembly 8 will not generate interference to the unlatching of valve block, at this point,
If range hood works, the first valve block 3 and the second valve block 4 can be normally-open, and maximum opening angle is 90 °, works as oil suction
When smoke machine does not work, the first valve block 3 and the second valve block 4 are sucked the magnet on valve body 1, and are isolated under the action of sealing ring and use
Family flue and common flue or the external world, prevent flue taint of odour.
Under flue firing condition, temperature control chip 10 can will be limited in movable block 7 therein and release because high temperature generates deformation or fusing
It puts, movable block 7 is mobile to fixed block 6 under the action of locking spring 9, and depression bar assembly 8 is gradually beaten with the movement of movable block 7
It opens, until movable block 7 is collided with limited block 11, at this point, depression bar assembly 8 is in full open position and compresses 3 He of the first valve block
Second valve block 4, forcibly closes valve block, to close fire prevention valve passage, separates range hood smoke pipe and common flue, prevents cigarette
It manages on fire.Also, locking spring 9 at this time is also still in tensional state, valve block can be made to close more reliable.
Claims (10)
1. a kind of double valve sheet fireproof check valve for flue, including valve body (1), valve shaft (2), the first valve block (3) and the second valve block
(4), the valve shaft (2) is mounted on the valve body (1), and first valve block (3) and the second valve block (4) are rotatably connected on institute
State the two sides of valve shaft (2), it is characterised in that: fixed bracket (5) are also equipped on the valve body (1), in the fixed branch
Fixed block (6) and movable block (7) are installed on frame (5), further include having to make movable block (7) that oriented fixed block (6) movement to be kept to become
The elastic component of gesture and the temperature-sensing element for preventing movable block (7) mobile to fixed block (6), in the fixed block (6) and movable block (7)
Between two groups of depression bar assemblies (8) for being respectively arranged on fixed bracket (5) two sides are installed, two groups of depression bar assemblies (8) are in movable block (7)
Drive under can synchronize opening and compress the first valve block (3) and the second valve block (4), also can synchronizing close and release to the first valve block
(3) and the active force of the second valve block (4).
2. double valve sheet fireproof check valve for flue according to claim 1, it is characterised in that: depression bar assembly described in every group
It (8) include the first compression bar (81) and the second compression bar (82), first end and the fixed block (6) of first compression bar (81) are mutually cut with scissors
It connects, first end and the movable block (7) of second compression bar (82) are hinged, the second end of first compression bar (81) and
The second end of two compression bars (82) is hinged.
3. double valve sheet fireproof check valve for flue according to claim 2, it is characterised in that: the depression bar assembly (8) is being beaten
The middle section of first valve block (3), the second valve block (4) can be acted under open state, the depression bar assembly (8) is in closed form
Under state, the first compression bar (81) and the second compression bar (82) draw close fixed bracket (5).
4. double valve sheet fireproof check valve for flue according to claim 1, it is characterised in that: the elastic component is locking bullet
Spring (9), the both ends of locking spring (9) are respectively fixedly connected on the fixed block (6) and movable block (7).
5. double valve sheet fireproof check valve for flue according to claim 1, it is characterised in that: the temperature-sensing element is high temperature
The lower temperature control chip (10) that can generate deformation or fusing.
6. double valve sheet fireproof check valve for flue according to claim 1, it is characterised in that: pacify on the fixed bracket (5)
Equipped with the limited block (11) for being used to limit the movement of the movable block (7), the limited block (11) is set to the fixation
Between block (6) and movable block (7).
7. double valve sheet fireproof check valve for flue according to claim 1, it is characterised in that: the fixed bracket (5) is in bar
Shape, the fixed bracket (5) and valve shaft (2) are set to the centre of the valve body (1), fixed bracket (5) and valve shaft (2) phase
Mutually parallel, the depression bar assembly (8) is set between the fixed bracket (5) and valve shaft (2) in closed state.
8. double valve sheet fireproof check valve for flue according to claim 1, it is characterised in that: installed on the valve body (1)
Have the magnet that first valve block (3) and the second valve block (4) can be sucked, be also equipped on the valve body (1) for it is described
The sealing ring that first valve block (3), the second valve block (4) mutually seal.
9. double valve sheet fireproof check valve for flue according to claim 1, it is characterised in that: first valve block (3) and
The maximum opening angle of two valve blocks (4) is 90 °.
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: institute
It is vertically arranged to state valve shaft (2), first valve block (3) and the second valve block (4) laterally open and close, in the valve shaft
(2) torsional spring (12) for making the first valve block (3) and the second valve block (4) maintain closure trend is installed on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711478540.0A CN109990120B (en) | 2017-12-29 | 2017-12-29 | Double-valve-plate flue fireproof check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711478540.0A CN109990120B (en) | 2017-12-29 | 2017-12-29 | Double-valve-plate flue fireproof check valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109990120A true CN109990120A (en) | 2019-07-09 |
| CN109990120B CN109990120B (en) | 2024-01-16 |
Family
ID=67108941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711478540.0A Active CN109990120B (en) | 2017-12-29 | 2017-12-29 | Double-valve-plate flue fireproof check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109990120B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110715080A (en) * | 2019-10-30 | 2020-01-21 | 盛玉平 | Single spring fireproof check valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201443628U (en) * | 2009-07-23 | 2010-04-28 | 韩文强 | Flue fire-resisting-resisting check valve |
| CN202284667U (en) * | 2011-11-01 | 2012-06-27 | 韩文强 | Check fire resisting damper for flue |
| CN203248797U (en) * | 2013-05-25 | 2013-10-23 | 韩文强 | Flue non-return fire damper |
| CN203453554U (en) * | 2013-08-29 | 2014-02-26 | 周建达 | Fireproof check valve of exhaust pipe opening of range hood |
| CN203797087U (en) * | 2014-04-22 | 2014-08-27 | 黄河科技学院 | Rotating shaft mounting structure ofhand-operated check valve forpublic flue duct |
| CN207648210U (en) * | 2017-12-29 | 2018-07-24 | 宁波方太厨具有限公司 | A kind of double valve sheet fireproof check valve for flue |
-
2017
- 2017-12-29 CN CN201711478540.0A patent/CN109990120B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201443628U (en) * | 2009-07-23 | 2010-04-28 | 韩文强 | Flue fire-resisting-resisting check valve |
| CN202284667U (en) * | 2011-11-01 | 2012-06-27 | 韩文强 | Check fire resisting damper for flue |
| CN203248797U (en) * | 2013-05-25 | 2013-10-23 | 韩文强 | Flue non-return fire damper |
| CN203453554U (en) * | 2013-08-29 | 2014-02-26 | 周建达 | Fireproof check valve of exhaust pipe opening of range hood |
| CN203797087U (en) * | 2014-04-22 | 2014-08-27 | 黄河科技学院 | Rotating shaft mounting structure ofhand-operated check valve forpublic flue duct |
| CN207648210U (en) * | 2017-12-29 | 2018-07-24 | 宁波方太厨具有限公司 | A kind of double valve sheet fireproof check valve for flue |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110715080A (en) * | 2019-10-30 | 2020-01-21 | 盛玉平 | Single spring fireproof check valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109990120B (en) | 2024-01-16 |
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