CN208619714U - A kind of coiled-type gas shut-off valve - Google Patents
A kind of coiled-type gas shut-off valve Download PDFInfo
- Publication number
- CN208619714U CN208619714U CN201721732087.7U CN201721732087U CN208619714U CN 208619714 U CN208619714 U CN 208619714U CN 201721732087 U CN201721732087 U CN 201721732087U CN 208619714 U CN208619714 U CN 208619714U
- Authority
- CN
- China
- Prior art keywords
- spool
- valve
- face
- shutting
- coiled
- 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.)
- Expired - Fee Related
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- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims description 11
- 239000004744 fabric Substances 0.000 claims description 7
- 238000007665 sagging Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 230000003447 ipsilateral effect Effects 0.000 claims 1
- 230000002265 prevention Effects 0.000 claims 1
- 230000008859 change Effects 0.000 abstract description 6
- 230000009471 action Effects 0.000 abstract description 2
- 230000007812 deficiency Effects 0.000 abstract description 2
- 238000004804 winding Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0245—Curtain gate 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
-
- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Mechanically-Actuated Valves (AREA)
- Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
Abstract
The existing shutoff valve used to low pressure/large flow-rate gas stream control is with run action space is big, installed power is big, weight is big, cost is high, but general frequency of usage is very low, causing the extremely low the purpose of this utility model of returns of investment is in view of the deficiencies of the prior art, there is provided a kind of coiled-type gas shut-off valve, it is characterised in that the spool part of valve is made of face of shutting off (referring to the component in valve hole part for shutting off) that is rollable, flexible and preventing air-flow from passing through and its supporting surface, spool.Spool can be made to rotate equipped with corresponding transmission device, make to shut off roll on spool.The change of shutoff valve captured area size is decided by make by curling spool plate face perspective plane of keeping out the wind of shutting off changes how many, and during change, spool shuts off not to be slid between plate face and valve body frame.
Description
Technical field:
The present invention provides a kind of coiled-type gas shut-off valve, is used for low pressure, big flow, needs the gas of books circulation bore operating condition
Flow control.
Background technique:
The shutoff valve that the prior art uses low pressure/large flow-rate gas stream control has board plug type, turning over type, louvered, is total to
Same disadvantage is that run action space is big, installed power is big, weight is big, cost is high, but general frequency of usage is very low, causes to throw
It is extremely low to provide benefit.In view of the above-mentioned problems, the theory of mechanics completely new, used the present invention provides one kind is compared with the prior art
Completely different coiled-type gas shut-off valve, the disadvantage that existing low pressure, big flow shutoff valve can be overcome all.Installed power is made
Valence is only the 10%-20% of the prior art.
Summary of the invention:
In view of the deficiencies of the prior art, it is an object of the present invention to provide a kind of gas shut-off valves.
The present invention provides a kind of gas shut-off valve, it is characterised in that the spool part of valve (this case spool refer to the shell of valve with
Interior part) by face of shutting off (referring to the component in valve hole part for shutting off) that is rollable, flexible and preventing air-flow from passing through
It is constituted with its supporting surface, spool.Supporting surface is made of supporting frame and the bearing rib being fixed on supporting frame.Bearing rib
It is located in the plane that supporting frame is surrounded.It can also be saved when bore is smaller.The gabarit size and shape of supporting surface with it is simultaneous
Do valve body cabinet warehouse or the interior exterior feature of Pipe installing position it is consistent and integrally welded.The huge gas of face receiving of shutting off
Body pressure, passes it on supporting surface, then passes on shell.Face border of shutting off is all larger than the interior exterior feature 100- of supporting frame
300mm.Their equitant parts are compressed and sealed by air-flows.The transmission device of setting can be such that spool rotates, and make roll of shutting off
It on spool, hereinafter referred to as winds, or the face of shutting off of volume thereon is discharged from volume, hereinafter referred to as unreel.Its transmission device can be
The various devices of rotation transmitting can be completed, the tooth transmission such as driven by motor or the various prime mover of Motor, chain conveyer, band pass
Dynamic, bar transmission etc., the also various tooth transmissions comprising man power, chain conveyer, V belt translation, bar transmission etc..These prime mover,
Driver is all mature technology.These transmission devices can be arranged in entirely in cabinet or warehouse or pipeline, can also part
Setting is in outside in favor of maintenance.Further its feature of this case difference is: the size that prior art shutoff valve is opened is logical
It crosses the rotation of spool plate face or takes realization away.The shortcomings that the shortcomings that rotation is that occupied space is big, is taken away is to generate very big friction
Power.And the size that coiled-type shutoff valve that this case is mentioned is opened is made by the way that spool shuts off roll song, that is, by curling
The shut off area in face of the spool to keep out the wind becomes larger or becomes smaller to realize.It neither takes up space, does not also generate frictional force.Change
Theory of mechanics used in perspective plane of shutting off and prior art fundamental difference.Also difference is very big for advantage and disadvantage.Shutoff valve captured area is big
Small change is decided by make by curling spool plate face perspective plane of keeping out the wind of shutting off changes how many, during change, spool intercepter plate
It is not slid between face and valve body and supporting frame.
Further, technical solution is characterized in that: face of shutting off is rectangle, is fixed on the top of supporting frame, phase on one side
Pair another side be fixed on spool.Spool also is secured on supporting frame top or its close cover top plate, is fixed on support
Frame top while be fixed on spool while and both sides among sagging flexibility shut off the " u "-shaped of face formation (in terms of side)
Put a counterweight roller in interior bottom.The bearing block of spool is also securable to supporting frame top, or is fixed on the top of its close case, storehouse, pipe
On plate.It puts a part volume when spool or will roll up and all decontrol, in terms of side, that is, be parallel to the horizontal direction for the section that shuts off
See, the flexible material face in face of shutting off is vertical bilayer, be fixed on supporting frame on one side be fixed on spool while
Sagging Double-layer flexible face pocket is at there is a " u "-shaped due to gravity.A counterweight roller is arranged in " u "-shaped bottom between bilayer,
It is also possible to tubing.There are three types of stations, first is that valve standard-sized sheet station, i.e. spool winding degree reach " u "-shaped bottom is mentioned it is through-flow
Hole highest is more than；Second is that the degree that unreels of the fully closed station of valve, i.e. spool rotation reach " u "-shaped bottom drop to the minimum edge of through flow hole with
Under the position (general 100-300mm)；Third is that valve portion closes station, i.e. " u "-shaped bottom is in part in through-flow aperture central region
It closes, partially open mode.In order to guarantee sealing effect, shut off face will to through-flow aperture all standing, and periphery be intended to it is larger
(generally 100-300mm) can be other than the face width that shuts off of valve body frame for the face sideslip when winding on spool that prevents from shutting off
It is left and right that at least one block is respectively set, play restricted guidance.
It is further technically characterized in that face of shutting off is rectangle, is fixed on the top of supporting frame on one side, opposite is another
It is fixed on spool on one side.Spool is by regarding two rope pockets of " u "-shaped as from the horizontal direction for being parallel to face of shutting off, and described two
Bar rope also is secured to supporting frame top or its close case, storehouse, on tube top plate close to support respective one end in surface side.It is respective
The other end is by transmission device sync pulling or release, and spool has suitable weight or additional counterweight, with two " u "-shaped ropes
The traction or release of rope and rotate, move up and down simultaneously, to make two ropes axial float on spool, can be set at the both ends of spool
There is sheave, rope is stuck in race, sheave and spool are fixed as one, and rotate synchronously.Rope can week in race
To sliding.Three stations are same as above, and when such transmission device discharges rope, spool rotates and declines realization and unreels, as valve
The process of closing.When opposite transmission device drag rope, spool rotates and rises, and realizes winding, the as process of valve opening, slot
Wheel can prevent the face sideslip on spool that shuts off when winding simultaneously.
The shut off flexible material in face of the coiled-type can be each kind fabric, is also possible to the fabric of gluing, is also possible to
All kinds of chemical industry mold materials, are also possible to metal membrane material, are also possible to the assembly that above-mentioned material adds horizontal support muscle.These materials
There will be airfast characteristic.Other characteristics, such as high temperature resistant, anti-corrosion feature, can want according to the work condition environment of detailed programs
Depending on asking.
Since coiled-type shutoff valve has series of advantages, especially it adapts to arbitrarily large aperture of shutting off, therefore utilizes
The entire side of dirt side chamber and net side chamber can be all split into the bore that shuts off of air inlet by this outstanding advantages, change bottom into
Gas is side air inlet.Such improvement will also bring following many benefits: one's intention as revealed in what one says of shutting off resistance reduces, air inlet shut off bore generally from
1-2 square metres increases to 18-30 square metres, and the captured area of gas outlet increases to about 1.5-10 square metres from 1-2 square metres, resistance
80% or more decline；90% or more air inlet stream speed decline, is conducive to air flow method, sack is protected not to be worn；It improves
The route that gas is run in deduster makes to shorten 40-45% along journey route, and quarter bend turns to from 6 and is reduced to 4,
Drag reduction about 4%；Inlet plenum flow section doubles above, 7% or more gas-flow resistance reduction；Air inlet building volume increases
1-3 times, gas flow rate declines to a great extent, and inlet plenum is made to be provided with the function of expansion chamber, and large dust particle can settle herein, makes entirety
Efficiency of dust collection improves；Deashing number and energy consumption are reduced, 20-40% deashing compressed air usage amount is reduced, increases 20-40% pulse
Valve service life, life-span of the filter bag extend 20-30%；It overcomes bottom air inlet and falls direction with deashing dirt and run counter to, cause reentrainment of dust
Defect；Overcome due to bottom air inlet bag bottom bag between gas velocity limitation, and be not suitable for application long bag the shortcomings that；Overcome bottom air inlet
It can not be using the defect of the new-type clasp bag bottom dedusting filtering bag of low cost, high dust collection efficiency；Air inlet, the installation of outlet shutoff valve are dynamic
Power capacity reduces 70-80%；Air inlet, the investment of outlet shutoff valve reduce 80-90%.
Detailed description of the invention
Fig. 1: the coiled-type shutoff valve schematic diagram that spool does not move.
Fig. 2: the mobile coiled-type shutoff valve schematic diagram of spool.
1- cabinet (warehouse, pipeline) 2- shuts off face 3- supporting frame 4- bearing rib 5- counterweight roller 6- spool 7-
Fixed device 8- transmission device 9- block 10- " u "-shaped rope 11- sheave 12- shuts off face traction section 13- bearing block
Specific embodiment:
It is to be illustrated to exemplary of the invention below, but not limited to this.
Embodiment 1
As shown in Fig. 1, it burn-ons in cabinet 1 supporting frame 3, bearing rib 4 is welded in frame, bearing rib 4 can
Airflow-distribution board is also served as, air-locked rubberized fabrics material makes face 2 of shutting off, and width, height are both greater than venthole 100-
300mm is fixed on 3 top of supporting frame by it on one side with fixed device 7, (specifically fabric class folder made of available cold-pressing quality steel band
Checkpost item clamps the fabric top edge in face 2 of shutting off, then strip is welded in the top of frame 3), by the opposite another side in face of shutting off,
It exactly draws section to be fixed on spool 6 with glue on one side, spool 6 is also secured at the top of supporting frame 3 by its bearing block 13.Volume
The driving end of axis is equipped with bevel gear, is connected with speed reducer, the motor of dress outside the enclosure.In face 2 and the face traction section 12 of shutting off of shutting off
Between be equipped with counterweight roller 5.On the outside of two free outers of the face 2 perpendicular to ground of shutting off, in the height of near reel 6, it is equipped with solid
A pair of of the block 9 being scheduled on supporting frame 3, the block 9 play the role of limition orientation to the two free outers in face of shutting off, to protect
Its is demonstrate,proved regular orderly to be wrapped on spool 6.If set motor rotating forward, spool 6 is to unreel, then matches under the effect of gravity
Weight roller 5 declines and face 2 of shutting off is driven persistently to sprawl and captured area is made to become larger, and maximum can be by valve contract fully.Conversely, motor is anti-
Turn, spool 6 is winding, then face 2 of shutting off persistently starts and captured area is made to become smaller, finally can open full valve.In order not to make to cut
The Upper-lower Limit position of stream interface 2 run more than when being stowed away and being unfolded, can by set in the case or outside case close to switch control
System, it is also possible to motor encoder control.
Embodiment 2
As shown in Fig. 2, the fixation of the both sides in supporting frame 3 and face 2 of shutting off is same as above, 6 both ends of spool are welded with sheave 11,
Slot is provided with stainless steel wirerope 10, the top of supporting frame 3 is respectively fixed on close to the side rope end of supporting frame 3, respectively
The top plate that other side rope end passes through cabinet 1, which is fixed on, to be arranged on two coaxial rollers of external transmission device 8, each roller two
There are gear edge, the arrangement range of limitation wirerope curling in end.Roller is driven by motor, speed reducer 8.If setting motor to rotate forward
When, spool 6 is to unreel, then under the effect of gravity, has the spool of appropriate weight to rotate and decline.If (spool weight not enough can be another
Adding counterweight) face 2 of shutting off persistently sprawls and captured area made to become larger, and maximum can be by valve contract fully.Otherwise motor reversion, spool 6
For winding, then face 2 of shutting off persistently is rolled-up and captured area is made to become smaller, finally can open full valve.Control is the same as above-mentioned.
Claims (9)
1. a kind of coiled-type gas shut-off valve, including spool, it is characterised in that: the spool includes shut off face, supporting surface and volume
Axis, the face of shutting off that the face of shutting off passes through for flexible, rollable prevention air-flow.
2. coiled-type gas shut-off valve as described in claim 1, it is characterised in that: equipped with the transmission device for rotating spool.
3. coiled-type gas shut-off valve as described in claim 1, it is characterised in that: supporting surface is by supporting frame and is fixed on branch
Support the bearing rib composition on frame；Bearing rib is located in the plane that supporting frame is surrounded.
4. coiled-type gas shut-off valve as described in claim 1, it is characterised in that: the size that valve is opened is by cutting spool
Stream interface curling realizes that spool shuts off not to be slid between face and supporting surface.
5. coiled-type gas shut-off valve as claimed in claim 2, it is characterised in that: face of shutting off is rectangle, is fixed on one side
Supporting frame top, opposite another side are fixed on spool, and spool also is secured to supporting frame top or its close shell top
On plate, be fixed on supporting frame while be fixed on spool while and both sides among sagging flexibility shut off " U " of face formation
A counterweight roller is put at bottom in shape.
6. coiled-type gas shut-off valve as claimed in claim 2, it is characterised in that: face of shutting off is rectangle, is fixed on one side
Supporting frame top, opposite another side are fixed on spool, and spool is played by two cable loops；In terms of side, described two
Rope also is secured to supporting frame top or its close shell top close to the respective one end in supporting frame side at " u "-shaped, two ropes
On plate, respectively the ipsilateral other end is by transmission device sync pulling or release；Spool has suitable counterweight, with two " u "-shaped ropes
The traction or release of rope and rotate, move up and down simultaneously.
7. coiled-type gas shut-off valve as described in claim 1, which is characterized in that the gabarit size and shape of supporting surface with it is simultaneous
Do valve body cabinet warehouse or the interior exterior feature of Pipe installing position it is consistent and integrally welded.
8. coiled-type gas shut-off valve as described in claim 1, which is characterized in that face border of shutting off is all larger than support-frame
Interior exterior feature 100-300mm.
9. coiled-type gas shut-off valve as described in claim 1, it is characterised in that: the flexible material in face of shutting off is each kind fabric
Or fabric coating, all kinds of chemical materials, metal pattern material or above-mentioned material blooming and supporting rib assembly.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721732087.7U CN208619714U (en) | 2017-12-13 | 2017-12-13 | A kind of coiled-type gas shut-off valve |
| PCT/CN2018/120166 WO2019114671A1 (en) | 2017-12-13 | 2018-12-11 | Coiled type gas shutoff valve |
| CN201880075230.0A CN111465790B (en) | 2017-12-13 | 2018-12-11 | Curling type gas shutoff valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721732087.7U CN208619714U (en) | 2017-12-13 | 2017-12-13 | A kind of coiled-type gas shut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208619714U true CN208619714U (en) | 2019-03-19 |
Family
ID=65690780
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721732087.7U Expired - Fee Related CN208619714U (en) | 2017-12-13 | 2017-12-13 | A kind of coiled-type gas shut-off valve |
| CN201880075230.0A Active CN111465790B (en) | 2017-12-13 | 2018-12-11 | Curling type gas shutoff valve |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880075230.0A Active CN111465790B (en) | 2017-12-13 | 2018-12-11 | Curling type gas shutoff valve |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN208619714U (en) |
| WO (1) | WO2019114671A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915610A (en) * | 2017-12-13 | 2019-06-21 | 山东盛华投资有限责任公司 | A kind of coiled-type gas shut-off valve |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114233912A (en) * | 2021-12-17 | 2022-03-25 | 中国科学院电工研究所 | Array type electrorheological valve with embedded runner and processing method thereof |
| CN116498761B (en) * | 2023-06-28 | 2023-08-29 | 平邑县畜牧发展促进中心 | Be used for poultry fodder to load feed bin discharge gate stop valve |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB939625A (en) * | 1961-01-23 | 1963-10-16 | Thermo Technical Dev Ltd | Improvements in or relating to dampers |
| FR2563860A1 (en) * | 1984-05-03 | 1985-11-08 | Farnier & Penin | Motorised blind with positively controlled winding and unwinding |
| US5785105A (en) * | 1995-11-13 | 1998-07-28 | Crider; Grant W. | Sealable curtain |
| US7051994B2 (en) * | 2001-07-18 | 2006-05-30 | Belimo Holding Ag | Control valve with detachable descrete curtain valve assembly |
| CN201661698U (en) * | 2010-02-11 | 2010-12-01 | 深圳市迈科瑞环境科技有限公司 | Modified structure of flap valve |
| CN201891372U (en) * | 2010-11-08 | 2011-07-06 | 巩庆飞 | Automatically rolled blind |
| CN102162537A (en) * | 2011-04-25 | 2011-08-24 | 中铁二院工程集团有限责任公司 | Air valve of curtain |
| CN202604492U (en) * | 2012-06-30 | 2012-12-19 | 刘子昭 | Lifting type curtain rod |
| CN103671998B (en) * | 2014-01-06 | 2016-03-16 | 点夺机电工程江苏有限公司 | A kind of gate-valve device for ventilation duct |
| US9249888B2 (en) * | 2014-01-17 | 2016-02-02 | Ge Oil & Gas Pressure Control Lp | Non-welded hardface gate and seats |
| CN204238780U (en) * | 2014-11-28 | 2015-04-01 | 中城建恒远（贵州安顺）新型建材有限公司 | A kind of heat-insulation rolling gate |
| CN204553889U (en) * | 2015-04-28 | 2015-08-12 | 山东华联矿业股份有限公司 | Ore pulp push-pull valve |
| JP6444921B2 (en) * | 2016-03-18 | 2018-12-26 | 株式会社栗本鐵工所 | Shut-off valve for harmful gas pipeline |
| CN206347125U (en) * | 2016-11-11 | 2017-07-21 | 中国工程物理研究院总体工程研究所 | The air seal valve separated for heavy caliber light-transmissive conduits |
-
2017
- 2017-12-13 CN CN201721732087.7U patent/CN208619714U/en not_active Expired - Fee Related
-
2018
- 2018-12-11 CN CN201880075230.0A patent/CN111465790B/en active Active
- 2018-12-11 WO PCT/CN2018/120166 patent/WO2019114671A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915610A (en) * | 2017-12-13 | 2019-06-21 | 山东盛华投资有限责任公司 | A kind of coiled-type gas shut-off valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111465790A (en) | 2020-07-28 |
| CN111465790B (en) | 2022-02-18 |
| WO2019114671A1 (en) | 2019-06-20 |
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