CN107631034A - A kind of assisting in opening mechanism of flute check valve - Google Patents
A kind of assisting in opening mechanism of flute check valve Download PDFInfo
- Publication number
- CN107631034A CN107631034A CN201710888148.7A CN201710888148A CN107631034A CN 107631034 A CN107631034 A CN 107631034A CN 201710888148 A CN201710888148 A CN 201710888148A CN 107631034 A CN107631034 A CN 107631034A
- Authority
- CN
- China
- Prior art keywords
- swing rod
- valve block
- opening
- assisting
- edge
- 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.)
- Granted
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 22
- 238000012856 packing Methods 0.000 claims abstract description 39
- 238000009434 installation Methods 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 13
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 230000007774 longterm Effects 0.000 abstract 1
- 239000000779 smoke Substances 0.000 description 7
- 239000011324 bead Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Landscapes
- Check Valves (AREA)
- Lift Valve (AREA)
Abstract
The invention provides a kind of assisting in opening mechanism of flute check valve, belong to pipeline configuration technical field.Valve block can not be opened after it solves the problems, such as long-term use in the prior art.The assisting in opening mechanism of this flute check valve, flute check valve includes housing and some valve blocks, there is ring packing gear edge in housing, valve block is hinged in housing, valve block edge can keep off edge with ring packing and fit or separate, housing has air intake and outlet air end, it is characterized in that, this assisting in opening mechanism includes swing rod, there is installation cavity inside valve block, swing rod swings and is arranged in installation cavity, valve block has opening one and opening two close to air intake side, opening one is provided with a cushion, one end of swing rod is in contact with cushion, opening two is arranged on the edge of valve block, when one end that cushion deforms upon driving swing rod is swung, the other end of swing rod can pass opening two and lean ring packing gear edge.The present invention has the advantages of enhancing valve block opening force.
Description
Technical field
The invention belongs to pipeline configuration technical field, it is related to a kind of assisting in opening mechanism of flute check valve.
Background technology
In the kitchen using the public gas flue in longitudinal direction, in order to prevent the oil smoke in gas flue from blowing back into kitchen, typically
Between integrated kitchen range or range hood and public gas flue check-valves can be set to be obstructed, the non-return used on the market at present
Valve, largely still has that oil smoke pours in down a chimney, phenomena such as not smooth of discharging fume can not eradicate.
The seal operation principle of existing check-valves：The valve block to be sealed in check-valves, is opened by row of wind, works as row
After wind-force disappears, closed in valve block from the presence of gravity and return spring force.General principle is analyzed, it finds that this structure
In opening force and closing force be conflicting a pair of active forces be difficult reconcile.
Such as to ensure " air draft is smooth " as design direction, valve block weight or spring force cannot be excessive, and which limits pass
The power of valve closing piece, easily because suction function in gas flue, valve block can not be sealed effectively, there is gap with the sealing surface of valve body, make
Pour in down a chimney into oil smoke, and valve block closes valve noise and occurred repeatedly；Conversely, such as to ensure " sealing of check-valves " as design direction, just
The return spring force of valve block, and the sealing surface increase seal (such as silica type) between valve block and valve body need to be increased, shortcoming also shows
And be clear to, bigger resistance need to be overcome by opening valve block, and the sealing surface of valve block causes that air draft is not smooth or valve block can not easily by grease adhesion
Open, air draft occur and blow not open, the phenomenon that oil smoke row does not go out.
At present, through retrieval, as Chinese patent literature discloses a kind of exhaust check valve of common flue【The patent No.：
CN200920014665.2；Authorization Notice No.：CN201443626U】.This exhaust check valve of common flue, it includes housing
And deep bead, wherein：One end of housing is the smoke pipe connection end of connection smoke pipe, and the other end of housing is entering on wall
Wall installation end；Enclosure interior has the hollow lumen being connected of both ends open, and deep bead is arranged on the pipe inside wall installation end
On chamber path；Deep bead and the mutual cooperation contact form of housing are linear contact lay；To smoke pipe connection end and wall peace can be entered
Tube chamber between dress end is opened or the deep bead of closed procedure is two pieces.This exhaust check valve of common flue makes for a long time
Bonded with housing with deep bead is still resulted in, deep bead can not be opened in the case of equal wind-force.
The content of the invention
The purpose of the present invention is above mentioned problem be present for existing technology, it is proposed that a kind of auxiliary of flute check valve is beaten
Opening mechanism, the technical problems to be solved by the invention are how to strengthen valve block opening force.
The purpose of the present invention can be realized by following technical proposal：
A kind of assisting in opening mechanism of flute check valve, flute check valve include housing and some valve blocks, described housing
Interior to have ring packing gear edge, described valve block is hinged in housing, valve block edge can be kept off with ring packing along fitting or
Separate, described housing has air intake and outlet air end, it is characterised in that this assisting in opening mechanism includes swing rod, inside valve block
With installation cavity, swing rod swings and is arranged in installation cavity, and valve block has opening one and opening two, opening one close to air intake side
A cushion is provided with, one end of swing rod is in contact with cushion, and opening two is arranged on the edge of valve block, and shape occurs for cushion
When one end of change driving swing rod is swung, the other end of swing rod can pass opening two and lean ring packing gear edge and make valve block and ring
Shape sealing gear is along separately.
The operation principle of the present invention is such：Wind-force enters housing from air intake, when cushion is under the driving of wind-force
Deform upon, the inside deformation of cushion, one end of swing rod can be swung to outlet air end, according to lever principle, the other end meeting of swing rod
To air intake extreme direction swing, when swing rod the other end through opening two be rocked to ring packing gear along when, due to ring packing gear
The presence on edge, the other end of swing rod will be unable to continue to swing, and ring packing gear applies one along the other end to swing rod and reversely made
Firmly, now, the power at the both ends of swing rod is directed to outlet air end, and edge and the ring packing of valve block are kept off along separating, and valve block is in and beaten
Open state, air intake and outlet air end communicate；This traditional check-valves can only open valve block by the non-articulated end of valve block, due to length
Time is bonded using valve block edge and ring packing gear edge, and opening force needs are very big, and low-grade wind-force can not be opened；The present invention
Using lever principle, swing rod is kept off to ring packing along an active force is applied, and is kept off by ring packing reverse along applying to valve block
Active force, valve block edge and ring packing are kept off along separating, the present invention after a long time use, remains able to open valve block.
Described swing rod includes the body of rod and the rotating shaft being vertically fixed on the body of rod, and reinforcing ring is further fixed on oscillating rod and is added
The strong axis of ring and the axis of fixing axle are located along the same line, and installation cavity is fixed with rotation seat one and rotation seat two, rotating shaft
One end is rotatably arranged in rotation seat one, and the other end of rotating shaft is rotatably arranged in rotation seat two, and described swing rod is close to opening
Two one end is outer end, and the one end of swing rod away from opening two is the inner, the distance of outer end to rotating shaft be less than it is inner arrive rotating shaft away from
From.
Using lever principle, one end of swing rod is power arm, and the other end of swing rod is resistance arm, by less wind-force just
The other end of swing rod can be swung, power caused by the other end of swing rod is more than the opening force of swing rod one end, further according to interaction
The principle of power, power caused by the other end of swing rod are equal to ring packing and kept off along opposition caused by the other end to swing rod,
It is therefore seen that valve block opening force will greatly enhance, it is relatively easy to open valve block.
Described valve block includes upper piece and lower piece, and upper piece is fixed with bottom sheet body phase, and upper piece is close to air intake.
Using above structure, make valve block that there is installation cavity, set swing rod to form swing space to swing.
It is in bowl-shape that fluted, described groove is opened up on described lower piece, and one end of swing rod can be rocked in groove,
The notch of described groove offers annular slot, and the edge of described cushion is provided with the convex annular to match with annular slot
Bar, ring rib are in annular slot.
Using above structure, groove can be that one end of swing rod swings reserved swing space, can by way of clamping
Cushion is set to be fixed on lower piece.
Described cushion has retainer ring close to the one side of swing rod, and one end of swing rod is located in retainer ring, swing rod
It is connected between one end and groove by a pressure-bearing spring.
Using above structure, swing rod can be swung when cushion inwardly deforms upon, in the effect of no wind-force, held
The enough one end by swing rod of pressure energy reset.
Described bottom portion of groove offers fixing groove, and one end of pressure-bearing spring is in fixing groove, pressure-bearing spring it is another
End and one end of swing rod against.
Using above structure, pressure-bearing spring can be fixed in a groove, prevent it from shifting.
Described cushion includes middle part, annular groove and outside, and middle part is identical with external height, annular groove be in middle part with
Annular is additionally provided between outside, between annular groove and middle part and tilts edge.
Described annular tilts along with middle part and forms the gradient, and the gradient close to outer end is more than close to the inner gradient.
Using above structure, according to the Impact direction of swing rod, ramp it is big partially due to stress is big, easily deform upon.
It is fixed with magnetic absorbing seat on described valve block, ring packing gear is along being above fixed with permanent magnet, permanent magnet and magnetic seat
It is raised with one to put corresponding, described outer end, swing rod and permanent magnet are on same straight line on horizontal plane.
Using above structure, in valve block fit-state, valve block and ring packing are kept off along jail by permanent magnet and magnetic absorbing seat
Jail touch, and is separated permanent magnet with magnetic absorbing seat by projection.So as to by valve block and ring packing gear along separating.
Described valve block edge is additionally provided with sealing gasket.
Using above structure, make the sealing of valve block and ring packing gear between better.
Compared with prior art, the present invention has advantages below：
1st, the present invention makes valve block, valve block opening force will be greatly enhanced by setting cushion, swing rod.
2nd, the present invention makes valve block closed mode not produced by the influence of negative pressure by setting magnetic absorbing seat and permanent magnet
Noise.
3rd, the present invention is raised by setting, and valve block is being separated active force Relatively centralized in time, and it is more convenient to open.
Brief description of the drawings
Fig. 1 is the schematic perspective view of the present invention.
Fig. 2 is the valve block sectional view of the present invention.
Fig. 3 is the transverse cross-sectional view of the present invention.
Fig. 4 is enlarged drawing at A in Fig. 3.
Fig. 5 is the positive and negative schematic diagram of cushion in the present invention.
Fig. 6 is the partial schematic diagram after valve block removes swing rod and cushion.
Fig. 7 is the partial schematic diagram after upper piece is removed.
In figure, 1, housing；2nd, valve block；2a, upper piece；2b, lower piece；3rd, ring packing gear edge；4th, cushion；4a, in
Portion；4b, annular groove；4c, outside；4d, annular tilt edge；5th, swing rod；5a, the body of rod；5b, rotating shaft；5c, projection；5d, reinforcing ring；
6th, installation cavity；7th, opening one；8th, opening two；9th, rotation seat one；10th, rotation seat two；11st, groove；12nd, annular slot；13rd, it is annular
Raised line；14th, retainer ring；15th, pressure-bearing spring；16th, fixing groove；17th, permanent magnet；18th, magnetic absorbing seat.
Embodiment
It is the specific embodiment of the present invention and with reference to accompanying drawing below, technical scheme is further described,
But the present invention is not limited to these embodiments.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, a kind of assisting in opening mechanism of flute check valve, flute check valve
Including housing 1 and two panels valve block 2, there is ring packing gear along 3 in housing 1, valve block 2 is hinged in housing 1, the edge energy of valve block 2
Enough kept off with ring packing along 3 fits or separated, and housing 1 has air intake and outlet air end, and this assisting in opening mechanism includes swing rod
5, valve block 2 includes upper piece 2a and lower piece 2b, and upper piece 2a fixes with lower piece 2b phases, and upper piece 2a is close to air intake, valve
Piece 2 has installation cavity 6, and swing rod 5 swings and is arranged in installation cavity 6, and valve block 2 has opening 1 and opening close to air intake side
28, opening 1 is provided with a cushion 4, and one end of swing rod 5 is in contact with cushion 4, and opening 28 is arranged on the side of valve block 2
At edge, when one end that cushion 4 deforms upon driving swing rod 5 is swung, the other end of swing rod 5 can pass opening 28 and lean ring
Shape sealing gear is along 3 and valve block 2 is separated with ring packing gear along 3, and swing rod 5 includes body of rod 5a and is vertically fixed on body of rod 5a
Rotating shaft 5b, reinforcing ring 5d and reinforcing ring 5d axis are further fixed on oscillating rod and the axis of fixing axle is located along the same line,
Installation cavity 6 is fixed with rotation seat 1 and rotation seat 2 10, and rotating shaft 5b one end is rotatably arranged in rotation seat 1, rotating shaft 5b's
The other end is rotatably arranged in rotation seat 2 10, and swing rod 5 is outer end close to one end of opening 28, and swing rod 5 is away from opening 28
One end is the inner, and the distance of outer end to rotating shaft 5b is less than the inner distance for arriving rotating shaft 5b.
Using lever principle, one end of swing rod 5 is power arm, and the other end of swing rod 5 is resistance arm, passes through less wind-force
With regard to can swing the other end of swing rod 5, power caused by the other end of swing rod 5 is more than the opening force of the one end of swing rod 5, further according to mutual
The principle of active force, power caused by the other end of swing rod 5 are equal to ring packing and kept off along reverse caused by the other end of 3 pairs of swing rods 5
Active force, it is therefore seen that the opening force of valve block 2 will greatly enhance, it is relatively easy to open valve block 2.
As shown in fig. 7, open up fluted 11 on lower piece 2b, in bowl-shape, one end of swing rod 5 can be rocked to recessed groove 11
In groove 11, the notch of groove 11 offers annular slot 12, and the edge of cushion 4 is provided with the annular to match with annular slot 12
Raised line 13, ring rib 13 are in annular slot 12.
Using above structure, groove 11 can be that one end of swing rod 5 swings reserved swing space, the energy by way of clamping
Cushion 4 is enough set to be fixed on lower piece 2b.
As shown in figure 5, cushion 4 has retainer ring 14 close to the one side of swing rod 5, one end of swing rod 5 is located in retainer ring
In 14, it is connected between one end of swing rod 5 and groove 11 by a pressure-bearing spring 15.
Using above structure, swing rod 5 can be swung when cushion 4 inwardly deforms upon, in the effect of no wind-force,
Pressure-bearing can reset one end of swing rod 5.
As shown in fig. 7, the bottom of groove 11 offers fixing groove 16, one end of pressure-bearing spring 15 is in fixing groove 16, held
The other end of pressing spring 15 and one end of swing rod 5 against.
Using above structure, pressure-bearing spring 15 can be fixed in groove 11, prevent it from shifting.
As shown in figure 5, cushion 4 includes middle part 4a, annular groove 4b and outside 4c, middle part 4a is highly identical with outside 4c,
Annular groove 4b is between middle part 4a and outside 4c, and annular is additionally provided between annular groove 4b and middle part 4a and is tilted along 4d.
Annular tilts along 4d and middle part 4a and forms the gradient, and the gradient close to outer end is more than close to the inner gradient.
Using above structure, according to the Impact direction of swing rod 5, ramp it is big partially due to stress is big, easily deform upon.
As shown in figure 4, being fixed with magnetic absorbing seat 18 on valve block 2, ring packing gear is fixed with permanent magnet 17, permanent magnet along 3
17 is corresponding with the position of magnetic absorbing seat 18, and outer end has a raised 5c, and swing rod 5 and permanent magnet 17 are in same on horizontal plane
On straight line.
Using above structure, in the fit-state of valve block 2, by permanent magnet 17 and magnetic absorbing seat 18 by valve block 2 and ring packing
Gear is firmly stuck to along 3, is separated permanent magnet 17 with magnetic absorbing seat 18 by raised 5c.So as to which valve block 2 and ring packing are kept off along 3 points
Open.
The edge of valve block 2 is additionally provided with sealing gasket.Using above structure, valve block 2 and ring packing is set to keep off along the sealing between 3
Better.Fixed column is fixed with housing 1, torsion spring is fixed in fixed column, one end of torsion spring and the valve block 2 in left side are fixed, torsion spring
The other end and the valve block 2 on right side fix.Just enough valve block 2 can be made to automatically reset more than.
The operation principle of the present invention is such：Wind-force enters housing 1 from air intake, when cushion 4 is in the driving of wind-force
Under deform upon, 4 inside deformation of cushion, one end of swing rod 5 can be swung to outlet air end, according to lever principle, swing rod 5 it is another
End can be swung to air intake extreme direction, when the other end of swing rod 5 is rocked to ring packing through opening 28 to be kept off along 3, due to annular
Sealing keeps off the presence along 3, and the other end of swing rod 5 will be unable to continue to swing, and the other end of the ring packing gear along 3 pairs of swing rods 5 applies
One opposition, now, the power at the both ends of swing rod 5 are directed to outlet air end, and edge and the ring packing of valve block 2 are kept off along 3 points
Open, valve block 2 is in open mode, and air intake and outlet air end communicate；This traditional check-valves can only pass through the non-articulated end of valve block 2
Valve block 2 is opened, is kept off along 3 and bonded with ring packing using the edge of valve block 2 due to long-time, opening force needs are very big, low-grade
Wind-force can not be opened；The present invention utilizes lever principle, and swing rod 5 is kept off along 3 to ring packing applies an active force, close by annular
Block applies opposition along 3 pairs of valve blocks 2, and the edge of valve block 2 is kept off along 3 with ring packing and separated, and the present invention makes for a long time
With rear, remain able to open valve block 2.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention is led
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Although housing 1 has more been used herein；Valve block 2；Upper piece 2a；Lower piece 2b；Ring packing is kept off along 3；Elasticity
Pad 4；Middle part 4a；Annular groove 4b；Outside 4c；Annular is tilted along 4d；Swing rod 5；Body of rod 5a；Rotating shaft 5b；Raised 5c；Reinforcing ring 5d；
Installation cavity 6；It is open 1；It is open 28；Rotation seat 1；Rotation seat 2 10；Groove 11；Annular slot 12；Ring rib 13；Gu
Determine ring 14；Pressure-bearing spring 15；Fixing groove 16；Permanent magnet 17；The grade term of magnetic absorbing seat 18, but be not precluded from using other terms can
Can property.It is used for the purpose of more easily describing and explaining the essence of the present invention using these terms；It is construed as any one
The additional limitation of kind is all disagreed with spirit of the present invention.
Claims (10)
1. a kind of assisting in opening mechanism of flute check valve, flute check valve includes housing and some valve blocks, in described housing
Edge is kept off with ring packing, described valve block is hinged in housing, and valve block edge can keep off edge with ring packing and fit or divide
Open, described housing has air intake and outlet air end, it is characterised in that this assisting in opening mechanism includes swing rod, has inside valve block
There is installation cavity, swing rod swings and is arranged in installation cavity, and valve block has opening one and opening two close to air intake side, is open on one
Provided with a cushion, one end of swing rod is in contact with cushion, and opening two is arranged on the edge of valve block, and cushion deforms upon
When driving one end of swing rod to swing, the other end of swing rod can pass opening two and lean ring packing gear edge and make valve block and annular
Sealing gear is along separately.
2. the assisting in opening mechanism of flute check valve according to claim 1, it is characterised in that described valve block includes upper
Lamellar body and lower piece, upper piece are fixed with bottom sheet body phase, and upper piece is close to air intake.
3. the assisting in opening mechanism of flute check valve according to claim 2, it is characterised in that described swing rod includes bar
Body and the rotating shaft being vertically fixed on the body of rod, the axis of reinforcing ring and reinforcing ring and the axis of fixing axle are further fixed on oscillating rod
It is located along the same line, lower piece has rotation seat one and rotation seat two, and one end of rotating shaft is rotatably arranged in rotation seat one,
The other end of rotating shaft is rotatably arranged in rotation seat two, and described swing rod is outer end close to one end of opening two, and swing rod is kept away
One end of mouth two is the inner, and the distance of outer end to rotating shaft is less than the inner distance to rotating shaft.
4. the assisting in opening mechanism of flute check valve according to claim 3, it is characterised in that opened on described lower piece
Provided with groove, described groove is in bowl-shape, and one end of swing rod can be rocked in groove, and the notch of described groove offers ring
Shape neck, the edge of described cushion are provided with the ring rib to match with annular slot, and ring rib is in annular slot
In.
5. the assisting in opening mechanism of the flute check valve according to claim 1 or 2 or 3, it is characterised in that described elasticity
Pad has retainer ring close to the one side of swing rod, and one end of swing rod is located in retainer ring, is passed through between one end of swing rod and groove
One pressure-bearing spring is connected.
6. the assisting in opening mechanism of flute check valve according to claim 5, it is characterised in that described bottom portion of groove is opened
Provided with fixing groove, one end of pressure-bearing spring is in fixing groove, the other end of pressure-bearing spring and one end of swing rod against.
7. the assisting in opening mechanism of the flute check valve according to claim 1 or 2 or 3, it is characterised in that described elasticity
Pad includes middle part, annular groove and outside, and middle part is identical with external height, annular groove between middle part and outside, annular groove and
Annular is additionally provided between middle part and tilts edge.
8. the assisting in opening mechanism of flute check valve according to claim 7, it is characterised in that described annular tilts edge
The gradient is formed with middle part, the gradient close to outer end is more than close to the inner gradient.
9. the assisting in opening mechanism of the flute check valve according to claim 1 or 2 or 3, it is characterised in that described valve block
On be fixed with magnetic absorbing seat, ring packing is kept off along permanent magnet is above fixed with, and permanent magnet is corresponding with magnetic absorbing seat position, described outer end
Raised with one, swing rod and permanent magnet are on same straight line on horizontal plane.
10. the assisting in opening mechanism of the flute check valve according to claim 1 or 2 or 3, it is characterised in that described valve
Piece edge is additionally provided with sealing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710888148.7A CN107631034B (en) | 2017-09-27 | 2017-09-27 | Auxiliary opening mechanism of flue check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710888148.7A CN107631034B (en) | 2017-09-27 | 2017-09-27 | Auxiliary opening mechanism of flue check valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107631034A true CN107631034A (en) | 2018-01-26 |
| CN107631034B CN107631034B (en) | 2024-05-17 |
Family
ID=61101638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710888148.7A Active CN107631034B (en) | 2017-09-27 | 2017-09-27 | Auxiliary opening mechanism of flue check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107631034B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662213A (en) * | 2018-06-26 | 2018-10-16 | 珠海格力电器股份有限公司 | Check valve and ventilation equipment thereof |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB683892A (en) * | 1949-09-05 | 1952-12-10 | Alfred Joseph Langham | A new or improved apparatus for controlling the draught produced by the chimneys or flues of furnaces, boilers, stoves or kilns |
| DE2828238A1 (en) * | 1978-06-28 | 1980-01-03 | Bopp & Reuther Gmbh | Seal for eccentrically mounted shut=off valve clack - is of PTFE with physical characteristics improved by additives |
| DE4110246A1 (en) * | 1991-03-28 | 1992-10-01 | Prochazka Peter | Cut=off device for flue gas channel with valve trapezoidal in front view - has valve seals with inclined sealing surfaces in contact with valve frame, valve being connected to bearer fillet via spring elements |
| CN2225579Y (en) * | 1995-01-06 | 1996-04-24 | 尹玉兰 | Automatic closing one-way valve |
| US5551666A (en) * | 1992-07-15 | 1996-09-03 | Zimmerman & Jansen Gmbh | Butterfly flap valve |
| US5950987A (en) * | 1997-06-06 | 1999-09-14 | Tetra Laval Holdings & Finance, Sa | In-line lever actuated valve |
| CN101893103A (en) * | 2009-05-22 | 2010-11-24 | 吴树源 | Elastic limit eccentric shaft butterfly valve |
| CN102116374A (en) * | 2011-03-08 | 2011-07-06 | 张忠 | Method using vanes to discharge flue gas and flue gas drain valve |
| CN102734478A (en) * | 2011-04-08 | 2012-10-17 | 吴树源 | Elastic limit eccentric shaft butterfly valve |
| CN102913975A (en) * | 2012-11-11 | 2013-02-06 | 周建达 | Range hood terminal air outlet |
| EP2597391A1 (en) * | 2011-11-22 | 2013-05-29 | Naber GmbH | Wall sleeve with impact damper |
| JP2014092360A (en) * | 2012-10-31 | 2014-05-19 | Chin Meijin | Mechanical timer device of gas cooking stove |
| CN203940054U (en) * | 2014-06-16 | 2014-11-12 | 杭州西蒙电器设备有限公司 | A kind of double leaf common flue check valve |
| CN204852494U (en) * | 2015-08-10 | 2015-12-09 | 刘从义 | Combination formula flue check valve clamps |
| CN105240544A (en) * | 2015-10-27 | 2016-01-13 | 浙江省东阳市华东暖通设备有限公司 | Cold and hot air hose valve |
| CN106065964A (en) * | 2016-07-22 | 2016-11-02 | 宁波方太厨具有限公司 | A kind of check (non-return) valve |
| CN206017800U (en) * | 2016-08-31 | 2017-03-15 | 于明生 | Marine fireproof air lock |
| CN207316088U (en) * | 2017-09-27 | 2018-05-04 | 火星人厨具股份有限公司 | A kind of assisting in opening mechanism of flute check valve |
-
2017
- 2017-09-27 CN CN201710888148.7A patent/CN107631034B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB683892A (en) * | 1949-09-05 | 1952-12-10 | Alfred Joseph Langham | A new or improved apparatus for controlling the draught produced by the chimneys or flues of furnaces, boilers, stoves or kilns |
| DE2828238A1 (en) * | 1978-06-28 | 1980-01-03 | Bopp & Reuther Gmbh | Seal for eccentrically mounted shut=off valve clack - is of PTFE with physical characteristics improved by additives |
| DE4110246A1 (en) * | 1991-03-28 | 1992-10-01 | Prochazka Peter | Cut=off device for flue gas channel with valve trapezoidal in front view - has valve seals with inclined sealing surfaces in contact with valve frame, valve being connected to bearer fillet via spring elements |
| US5551666A (en) * | 1992-07-15 | 1996-09-03 | Zimmerman & Jansen Gmbh | Butterfly flap valve |
| CN2225579Y (en) * | 1995-01-06 | 1996-04-24 | 尹玉兰 | Automatic closing one-way valve |
| US5950987A (en) * | 1997-06-06 | 1999-09-14 | Tetra Laval Holdings & Finance, Sa | In-line lever actuated valve |
| CN101893103A (en) * | 2009-05-22 | 2010-11-24 | 吴树源 | Elastic limit eccentric shaft butterfly valve |
| CN102116374A (en) * | 2011-03-08 | 2011-07-06 | 张忠 | Method using vanes to discharge flue gas and flue gas drain valve |
| CN102734478A (en) * | 2011-04-08 | 2012-10-17 | 吴树源 | Elastic limit eccentric shaft butterfly valve |
| EP2597391A1 (en) * | 2011-11-22 | 2013-05-29 | Naber GmbH | Wall sleeve with impact damper |
| JP2014092360A (en) * | 2012-10-31 | 2014-05-19 | Chin Meijin | Mechanical timer device of gas cooking stove |
| CN102913975A (en) * | 2012-11-11 | 2013-02-06 | 周建达 | Range hood terminal air outlet |
| CN203940054U (en) * | 2014-06-16 | 2014-11-12 | 杭州西蒙电器设备有限公司 | A kind of double leaf common flue check valve |
| CN204852494U (en) * | 2015-08-10 | 2015-12-09 | 刘从义 | Combination formula flue check valve clamps |
| CN105240544A (en) * | 2015-10-27 | 2016-01-13 | 浙江省东阳市华东暖通设备有限公司 | Cold and hot air hose valve |
| CN106065964A (en) * | 2016-07-22 | 2016-11-02 | 宁波方太厨具有限公司 | A kind of check (non-return) valve |
| CN206017800U (en) * | 2016-08-31 | 2017-03-15 | 于明生 | Marine fireproof air lock |
| CN207316088U (en) * | 2017-09-27 | 2018-05-04 | 火星人厨具股份有限公司 | A kind of assisting in opening mechanism of flute check valve |
Non-Patent Citations (1)
| Title |
|---|
| 刘玉建: "吸油烟机止回阀存在的问题及改进方案", 家用电器科技, no. 06, 10 November 1996 (1996-11-10), pages 4 - 5 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662213A (en) * | 2018-06-26 | 2018-10-16 | 珠海格力电器股份有限公司 | Check valve and ventilation equipment thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107631034B (en) | 2024-05-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207316088U (en) | A kind of assisting in opening mechanism of flute check valve | |
| CN207212815U (en) | Single-ended air inlet Multiple locking point window opener | |
| CN107631034A (en) | A kind of assisting in opening mechanism of flute check valve | |
| CN109595659A (en) | A kind of hearth lift integrated kitchen range | |
| CN209130218U (en) | A kind of steel gate valve of Childproof | |
| CN102641095B (en) | Starting mechanism for water closet pedal start and stop device | |
| CN203052773U (en) | Air outlet housing of smoke exhaust ventilator | |
| CN109595663A (en) | A kind of independence is into cigarette integrated kitchen range | |
| CN206246691U (en) | A kind of corrosion resistant through type Fluorine-lined stop valve of security seal | |
| CN102913973B (en) | Range hood outlet housing capable of assisting in quickly opening valve plates | |
| CN204739654U (en) | Play fan housing of lampblack absorber | |
| CN109595658A (en) | A kind of three-dimensional smoking integrated kitchen range | |
| CN203082966U (en) | Range hood air outlet cover capable of assisting in quick opening of valve plates | |
| CN205978670U (en) | Check valve | |
| CN201102525Y (en) | Self-positioning electronic anti-theft oil filler cap system of car | |
| CN104990114B (en) | A kind of outlet housing of lampblack absorber | |
| CN207406845U (en) | A kind of flute check valve | |
| CN207161719U (en) | A kind of canister intake valve | |
| CN208330592U (en) | A kind of oil outlet structure of motor-vehicle fuel pump | |
| CN211231728U (en) | Angle type differential slow-closing check valve | |
| CN201547925U (en) | Rectangular check valve of low leakage ventilation system | |
| CN207195760U (en) | Axial flow type check valve damping structure | |
| CN204473445U (en) | Oak wine barrel plug | |
| CN2846909Y (en) | Double sleeve zero leakage multiple function check-valve | |
| CN204805641U (en) | Flue check valve |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |