CN207196574U - A kind of adjustable 3D distributions smoke exhaust ventilator of multijaw - Google Patents
A kind of adjustable 3D distributions smoke exhaust ventilator of multijaw Download PDFInfo
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- CN207196574U CN207196574U CN201721016724.0U CN201721016724U CN207196574U CN 207196574 U CN207196574 U CN 207196574U CN 201721016724 U CN201721016724 U CN 201721016724U CN 207196574 U CN207196574 U CN 207196574U
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- exhausting
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- smoke
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Abstract
The utility model discloses a kind of adjustable 3D distributions smoke exhaust ventilator of multijaw, including structure is identical, the first fume-exhausting component, the second fume-exhausting component, the 3rd fume-exhausting component and the control system of the top, lower section and the side that are separately positioned on the kitchen range top；Each fume-exhausting component includes oil suction smoke pipe, fume-exhausting motor, fume-exhausting motor wind wheel and cooking fume exhaust pipe respectively, the oil suction smoke pipe includes multiple fume-exhausting pawls that fume-exhausting is responsible for and the adjustable angle connected is responsible for fume-exhausting, fume-exhausting supervisor is connected with cooking fume exhaust pipe, and fume-exhausting motor wind wheel is arranged between fume-exhausting supervisor and cooking fume exhaust pipe；Main oil-filtering apparatus is provided with fume-exhausting supervisor, secondary oil-filtering apparatus is provided with each fume-exhausting pawl；And multiple stretching holes are evenly arranged with the surrounding of the kitchen range top, the fume-exhausting pawl of the second fume-exhausting component is extend out to above the kitchen range top by stretching out in hole；The switch and air rate adjustment of three fume-exhausting motor wind wheels are realized by control system control, using 3D distributed arrangements, while oil smoke smoke abatement effect is not reduced, reduces fume exhauster motor power, while reduces noise, realizes Jing Yin mist extractor.
Description
Technical field
Smoke exhaust ventilator field is the utility model is related to, more particularly to a kind of adjustable 3D distributions smoke exhaust ventilator of multijaw.
Background technology
As the improvement of people's living standards, smoke exhaust ventilator turned into restaurant, dining room, hotel, restaurant, family etc. must can not
Few home appliance.Scientific research data shows, saturated hydrocarbons, unsaturated hydro carbons, benzene series are contained in oil smoke caused by culinary art
The noxious materials such as thing, and because oil smoke has good mobility and dilatancy, upon formation, excessive oil smoke can be to week
The air diffusion enclosed, coverage is larger, seriously pollutes the environmental quality of kitchen and ambient indoor, human health is caused
Great threat.
The purification of indoor oil smoke is presently mainly to be completed by smoke exhaust ventilator, and the type of smoke exhaust ventilator mainly has top at present
Suction, ring suction and side-suction type etc.；It is the surface that lampblack absorber is arranged on to kitchen range for top suction type, but oil smoke is rising
During easily occur spreading or by peripheral air stream influence occur run cigarette phenomenon, smoke pumping effect is poor, and smoke exhaust ventilator is easy
Meet and discuss, be unfavorable for actually using；And for ring draft range hood, although smoke absorption effect is preferable, compare during use
Relatively it is in the way；Side-suction type range hood is mounted in the side of kitchen range, comparatively distant, only when oil smoke acc power is sufficiently large
When can be only achieved preferable effect, its noise is also very big, is unfavorable for environmental protection and energy saving, smoke exhaust ventilator effect is also undesirable.
Whether top suction type, ring suction or side-suction type range hood, its smoking port are fixedly installed, well imagined, its oil
Cigarette purifying rate is all constantly decayed, it is difficult to fundamentally solve cooking fume purifying problem, smoke absorption effect certainly will be caused poor,
Oil smoke, which remains in kitchen, to be caused to pollute air, and then endangers the health of the mankind.
Utility model content
Technical problem to be solved in the utility model is to fix for existing smoke exhaust ventilator oil suction mouth position and position
Centralized arrangement is put, the defects of causing smoke absorption effect difference, a kind of adjustable 3D distributions smoke exhaust ventilator of multijaw of proposition, use is adjustable
Multi-claw type structure design, solid space arrangement, and oil suction mouth position can be arbitrarily adjusted, effectively improve kitchen oil fume purifying
Effect, and it is easy for operation.
The utility model is realized using following technical scheme：A kind of adjustable 3D distributions smoke exhaust ventilator of multijaw, its
It is characterised by, including the first fume-exhausting component, the second fume-exhausting component, the 3rd fume-exhausting component and its control system, and first
Fume-exhausting component, the second fume-exhausting component, the 3rd fume-exhausting component are separately positioned on the top, lower section and side of the kitchen range top, three
The comprehensive oil smoke siphoned away around cooking people in individual different direction, so as to reduce harm of the oil smoke to cooking people；Described first
Fume-exhausting component, the second fume-exhausting component and the 3rd fume-exhausting modular construction are identical, respectively including oil suction smoke pipe, fume-exhausting electricity
Machine, fume-exhausting motor wind wheel and cooking fume exhaust pipe, the oil suction smoke pipe, which includes fume-exhausting, to be responsible for and is responsible for what is connected with fume-exhausting
Multiple fume-exhausting pawls of adjustable angle, fume-exhausting supervisor is connected with cooking fume exhaust pipe, and fume-exhausting motor wind wheel is arranged on oil suction
Cigarette is responsible between cooking fume exhaust pipe；Main oil-filtering apparatus is provided with fume-exhausting supervisor, secondary oil strain is provided with each fume-exhausting pawl
Device；And multiple stretching holes are evenly arranged with the surrounding of the kitchen range top, the fume-exhausting pawl of the second fume-exhausting component is by stretching out Kong Zhongshen
Go out to above the kitchen range top；The control system includes the guidance panel being arranged on the first fume-exhausting component, and the first fume-exhausting group
The fume-exhausting motor of part, the second fume-exhausting component and the 3rd fume-exhausting component electrically connects with control system, passes through guidance panel
Control signal is inputted, the switch and air rate adjustment of three fume-exhausting motor wind wheels are realized by control system control, is distributed using 3D
Formula is arranged, while oil smoke smoke abatement effect is not reduced, reduces fume exhauster motor power, while reduces noise, is realized Jing Yin
Mist extractor.
Further, adjustabel part is provided with the fume-exhausting pawl, the adjustabel part is made up of TPU parcel stainless steels, can
Tune portion can alternating bending, Jing Yin resistance to compression, durable in use.
Further, the adjustabel part is arranged on the top and middle part of fume-exhausting pawl, and " top " refers to close to oil suction
One end of cigarette supervisor, because the presence of motor has vibration, by adjustabel part subsection setup due to smoke exhaust ventilator in use
It is the influence in order to reduce the vibrations of smoke exhaust ventilator in use to smoke pumping effect.
Further, the main oil-filtering apparatus is withdrawable structure, cotton class oil suction medium is provided with it, in oil absorption
It can be drawn it out when more and carry out cleaning treatment or replacing, after usage time has been grown, dual oil strain, ensure good remove
Oil purification effect, and change easy for installation.
Further, cotton class oil suction medium is provided with likewise, the secondary oil-filtering apparatus is withdrawable structure, in it.
Further, the fume-exhausting supervisor of the first fume-exhausting component and the 3rd fume-exhausting component is rotary type knot
Structure, the rotation of certain frequency is realized under control system control, to reach dynamic fume-exhausting scope control.
Further, the rotary type structure includes micromachine and the gear being connected with Miniature electric machine output shaft,
The outer wall that the gear is responsible for fume-exhausting engages, and micromachine electrically connects with control system, passes through the spin for the supervisor that exhales
To reach dynamic expiration scope control.
Further, stop part is also arranged with each fume-exhausting pawl of the second fume-exhausting component, stretches out on hole and is provided with
Packing ring, when fume-exhausting pawl is extend out to above the kitchen range top by stretching out hole, prevent fume-exhausting pawl from gliding by stop part, and pass through
Packing ring is effectively protected to fume-exhausting pawl.
Further, the end of the cooking fume exhaust pipe is also associated with the mist extractor base with stop valve, prevents other other
The oil smoke cooked flows back to oneself kitchen.
Further, the quantity of the fume-exhausting pawl is 3-6 roots.
Compared with prior art, it is the advantages of the utility model with good effect：
The utility model proposes the adjustable 3D distributions smoke exhaust ventilator of multijaw, pass through the first fume-exhausting component, the second oil suction
The distributed arrangement of cigarette component and the 3rd fume-exhausting component, and design new-type fume-exhausting pawl structure and carry out fume-exhausting, thoroughly change
The present situation of the mouth of lampblack absorber oil suction at present transfixion and centralized arrangement, on fume-exhausting pawl set multistage adjustabel part, it is described can
Tune portion using TPU parcel stainless steels structure type, can arbitrarily alternating bending, Jing Yin resistance to compression and durable in use, realize oil suction
Mouth position arbitrarily adjusts manually, so can reduce range hood power of motor while not reducing oil smoke and excluding effect, real
Existing Jing Yin mist extractor effect；Using three motors, trilobed wheel, 3D distributed arrangements, oil smoke around cooking people is greatly reduced, so as to
Reduce harm of the oil smoke for cooking people health；Using the double filter structures of major-minor can be extracted out, it is easy to implement greasy dirt and thoroughly removes；Can be wide
The general place that fume purifying is needed suitable for restaurant, dining room, hotel, restaurant, family etc..
Brief description of the drawings
Fig. 1 is the 3D distribution range hood structure schematic diagrames described in the utility model embodiment；
Fig. 2 is that the utility model embodiment sets the structural representation for stretching out hole on the kitchen range top；
Fig. 3 is the fume-exhausting component structure diagram of the utility model embodiment the 3rd.
Embodiment
In order to which above-mentioned purpose of the present utility model, feature and advantage are more clearly understood, below in conjunction with the accompanying drawings and
Embodiment is described further to the utility model.It should be noted that in the case where not conflicting, embodiments herein and
Feature in embodiment can be mutually combined.
With reference to figure 1, a kind of adjustable 3D distributions smoke exhaust ventilator of multijaw, including the first fume-exhausting component 1, the second fume-exhausting group
Part 2, the 3rd fume-exhausting component 3 and its control system（Do not illustrate in figure）, and the first fume-exhausting component 1, the second fume-exhausting component
2nd, the 3rd fume-exhausting component 3 is arranged on around the kitchen range top from three different directions respectively, the first fume-exhausting component 1,
Two fume-exhausting components 2 are identical with the structure of the 3rd fume-exhausting component 3, and for convenience's sake, the present embodiment is preferably provided at the kitchen range top
Top, lower section and side, naturally it is also possible to be the arranged on left and right sides and rear side of the kitchen range top, the position relationship such as the left and right, rear is with cooking
Position where people is as on the basis of " preceding ", by the comprehensive oil smoke siphoned away around cooking people in three different directions,
Using three motor trilobed wheel 3D distributed arrangements, greatly reduce harm of the oil smoke to cooking people；Effect can be excluded not reducing oil smoke
Range hood power of motor is reduced while fruit, realizes Jing Yin mist extractor effect.
With reference to figure 1, the first fume-exhausting component 1 includes the first oil suction smoke pipe 11, the first fume-exhausting motor, the first fume-exhausting electricity
The cooking fume exhaust pipe 13 of machine wind wheel 12 and first, the first oil suction smoke pipe 11 include the first fume-exhausting supervisor 111 and inhaled with first
Multiple first fume-exhausting pawls 112 of the adjustable angle of the connection of oil smoke supervisor 111, the first fume-exhausting supervisor 111 and the first mist extractor
Pipe 13 is connected, and the first fume-exhausting motor wind wheel 12 is arranged between the first fume-exhausting supervisor 111 and the first cooking fume exhaust pipe 13；
On the first fume-exhausting supervisor 111, the first main oil-filtering apparatus 14, Ge Ge is provided between the first fume-exhausting motor wind wheel 12
The first secondary oil-filtering apparatus 15 is provided with one fume-exhausting pawl 112；Likewise, the second fume-exhausting component 2 includes the second oil suction smoke pipe
21st, the second fume-exhausting motor, the second fume-exhausting motor wind wheel 22 and the second cooking fume exhaust pipe 23, the second oil suction smoke pipe 21 include
Second fume-exhausting supervisor 211 and multiple second fume-exhausting pawls 212 of the adjustable angle connected with the second fume-exhausting supervisor 211,
Second fume-exhausting supervisor 211 is connected with the second cooking fume exhaust pipe 23, and the second fume-exhausting motor wind wheel 22 is arranged on the second oil suction
Between cigarette supervisor 211 and the second cooking fume exhaust pipe 23；On second fume-exhausting supervisor 211, between the second fume-exhausting motor wind wheel 22
The second main oil-filtering apparatus 24 is provided with, the second secondary oil-filtering apparatus 25 is provided with each second fume-exhausting pawl 212.
With reference to shown in Fig. 1 and Fig. 3, the 3rd fume-exhausting component 3 includes the 3rd oil suction smoke pipe 31, the 3rd fume-exhausting motor, the
Three fume-exhausting motor wind wheels 32 and the 3rd cooking fume exhaust pipe 33, the 3rd oil suction smoke pipe 31 include the 3rd fume-exhausting supervisor 311 with
And the multiple 3rd fume-exhausting pawls 312 of adjustable angles connect with the 3rd fume-exhausting supervisor 311, the 3rd fume-exhausting supervisor 311 and
3rd cooking fume exhaust pipe 33 is connected, and the 3rd fume-exhausting motor wind wheel 32 is arranged on the 3rd fume-exhausting supervisor 311 and the 3rd oil extraction
Between smoke pipe 33；On 3rd fume-exhausting supervisor 311, the 3rd main oil-filtering apparatus is provided between the 3rd fume-exhausting motor wind wheel 32
34；The 3rd secondary oil-filtering apparatus 35 is provided with each 3rd fume-exhausting pawl 312；In order to reach preferable smoke absorption effect, effectively
Expand the scope of fume-exhausting, the fume-exhausting pawl（112,212,312）Quantity be 3-6 roots, can be determined according to actual conditions,
More than typically using 3 pawls or 3 pawls, the present embodiment preferably 4 is then corresponding, and multiple stretchings are evenly arranged with the surrounding of the kitchen range top 6
Hole（D1, D2, D3, D4）, the second fume-exhausting pawl 212 of the second fume-exhausting component 2 extend out to the top of the kitchen range top 6 by stretching out in hole, and
And in first, second, third cooking fume exhaust pipe（13,23,33）End be also associated with the mist extractor base with stop valve（B1,
B2, B3）, effectively to prevent oil smoke from flowing backwards.
In the present embodiment, the first main oil-filtering apparatus 14, the second main oil-filtering apparatus 24, the 3rd main oil-filtering apparatus 34 and
First, second, third secondary oil-filtering apparatus is outer filter plate and interior filter plate for withdrawable structure, including outer filter plate and interior filter plate
Between be provided with filter core, outer filter plate is provided with air inlet network interface, sets outlet network interface on interior filter plate, and the air inlet network interface is inside
Shrinkage pool, prevent air-flow from being flowed out again after oil strain, the combination of outer filter plate and interior filter plate and filter core can realize the work(of oil strain
Can, prevent oil smoke from entering inside lampblack absorber, and then can prevent fume-exhausting motor wind wheel noise because caused by adhering to oil smoke from increasing
Greatly, the problem of efficiency reduces, the filter core uses cotton class oil suction medium, can draw it out and be cleaned when oil absorption is more
Processing is changed, and after usage time has been grown, dual oil strain, ensures good oil removing clean-up effect, and change easy for installation.
On the kitchen range top oil smoke caused by cooking through fume-exhausting pawl end extract the filtering of secondary oil-filtering apparatus out after, suction
Main oil-filtering apparatus can be extracted out and carry out secondary filter, the flue gas after secondary filter enters cooking fume exhaust pipe through air channel by air outlet, finally
It is outdoor by the base discharge of band stop valve mist extractor, double filtration, ensure good oil removing, purify the effect of air, using master
Secondary double filter structures, are easy to implement greasy dirt and thoroughly remove.
The control system includes being arranged on guidance panel 4 on the first fume-exhausting component, and the first fume-exhausting component 1,
The fume-exhausting motor of second fume-exhausting component and 2 the 3rd fume-exhausting components 3 electrically connects with control system, passes through guidance panel 4
Control signal is inputted, three fume-exhausting motor wind wheels are realized by control system control（12,22,32）Switch and air rate adjustment,
Using 3D distributed arrangements, while oil smoke smoke abatement effect is not reduced, fume exhauster motor power is reduced, while reduce and make an uproar
Sound, realize Jing Yin mist extractor.
In addition, the left and right fume-exhausting pawl on smoke exhaust ventilator is angle adjustable structure, can it is integrally adjustable can also portion
It is point adjustable, due to the vibration of motor, if fume-exhausting pawl due to smoke exhaust ventilator in use（112、212、312）Entirety can
Adjust, side, which will certainly increase, shakes frequency width, increase vibrating noise, in the present embodiment, it is preferred that by adjustabel part subsection setup, i.e., each
Adjustabel part is provided with individual fume-exhausting pawl, and adjustabel part is generally multistage setting, such as, being set on the first fume-exhausting pawl 112 can
Tune portion 16 and adjustabel part 17, adjustabel part 26 and adjustabel part 27 are set on second fume-exhausting pawl 212, set on the 3rd fume-exhausting pawl 112
Adjustabel part 36 is put, to ensure bigger regulation angular range, adjustabel part is generally located on the top and middle part of fume-exhausting pawl, described
" top " refers to close to one end of fume-exhausting supervisor, and adjustabel part is made up of TPU parcel stainless steels, as needed, is manually adjusted
Adjustabel part can imitate to drive connected fume-exhausting pawl to change oil suction mouth position or realize storage effect and save space, adjustabel part
Can alternating bending, Jing Yin resistance to compression, durable in use, thoroughly change showing for existing oil smoke oil smoke suction inlet transfixion and integrated distribution
Shape, by the form design of the centralized fume eliminating of tradition into multiple claw structures, realize that oil suction mouth position arbitrarily adjusts manually, side
Just larger range of absorption oil smoke, oil suction mouth distributed arrangement, space surround entirely, and fume eliminating effect is more preferable.
Also, in addition, in order to further improve smoke abatement effect, the first fume-exhausting component 1 and the 3rd fume-exhausting component 3
Fume-exhausting supervisor（111,311）For rotary type structure, realize the rotation of certain frequency under control system control, including with control
The micromachine and be responsible for or exhale the spin being responsible for by fume-exhausting with Miniature electric machine output shaft to reach that system processed electrically connects
To dynamic scope control, the rotary type structure includes micromachine and the gear being connected with Miniature electric machine output shaft,
The outer wall that the gear is responsible for fume-exhausting engages, and micromachine electrically connects with control system, passes through the spin for the supervisor that exhales
To reach dynamic expiration scope control.It is of course also possible to use the rotary type structure of other forms.
When second fume-exhausting component is arranged on the kitchen range top, in order to effectively protect smoke exhaust ventilator and convenient use, second
Stop part is also arranged with each second fume-exhausting pawl 212 of fume-exhausting component 2（Do not illustrate in figure）, stretch out hole（D1, D2, D3,
D4）On be provided with packing ring, when the second fume-exhausting pawl 212 is extend out into the top of the kitchen range top 6 by stretching out hole, prevented by stop part
Only fume-exhausting pawl is glided, and fume-exhausting pawl is effectively protected by packing ring, and in order to which adjustment angle is convenient, the second oil suction
Adjustabel part 26 on cigarette pawl 212 is arranged on the lower section of the kitchen range top, and adjustabel part 27 is arranged on the top of the kitchen range top.
It is described above, only it is preferred embodiment of the present utility model, is not that other forms are made to the utility model
Limitation, any person skilled in the art is changed or is modified as possibly also with the technology contents of the disclosure above equivalent
The equivalent embodiment of change is applied to other fields, but every without departing from the content of the technical scheme of the utility model, according to this reality
Any simple modification, equivalent variations and the remodeling made with new technical spirit to above example, it is new to still fall within this practicality
The protection domain of type technical scheme.
Claims (9)
1. a kind of adjustable 3D distributions smoke exhaust ventilator of multijaw, it is characterised in that including the first fume-exhausting component, the second fume-exhausting group
Part, the 3rd fume-exhausting component and its control system, and the first fume-exhausting component, the second fume-exhausting component, the 3rd fume-exhausting component
It is separately positioned on the top, lower section and side of the kitchen range top；
The first fume-exhausting component, the second fume-exhausting component and the 3rd fume-exhausting modular construction are identical, respectively including fume-exhausting
Pipe, fume-exhausting motor, fume-exhausting motor wind wheel and cooking fume exhaust pipe, the oil suction smoke pipe include fume-exhausting supervisor and and fume-exhausting
Multiple fume-exhausting pawls of the adjustable angle of connection are responsible for, fume-exhausting supervisor is connected with cooking fume exhaust pipe, and fume-exhausting motor wind wheel
It is arranged between fume-exhausting supervisor and cooking fume exhaust pipe；Main oil-filtering apparatus is provided with fume-exhausting supervisor, is set on each fume-exhausting pawl
It is equipped with secondary oil-filtering apparatus；And be evenly arranged with multiple stretching holes in the surrounding of the kitchen range top, the fume-exhausting pawl of the second fume-exhausting component by
Stretch out in hole and extend out to above the kitchen range top；
The control system includes the guidance panel being arranged on the first fume-exhausting component, and the first fume-exhausting component, the second suction
The fume-exhausting motor of oil smoke component and the 3rd fume-exhausting component is electrically connected with control system, and control letter is inputted by guidance panel
Number, the switch and air rate adjustment for realizing three fume-exhausting motor wind wheels are controlled by control system.
2. 3D distributions smoke exhaust ventilator according to claim 1, it is characterised in that：It is provided with the fume-exhausting pawl adjustable
Portion, the adjustabel part are made up of TPU parcel stainless steels.
3. 3D distributions smoke exhaust ventilator according to claim 2, it is characterised in that：The adjustabel part is arranged on fume-exhausting pawl
Top and middle part.
4. 3D distributions smoke exhaust ventilator according to claim 3, it is characterised in that：The main oil-filtering apparatus is withdrawable
Structure, cotton class oil suction medium is provided with it.
5. 3D distributions smoke exhaust ventilator according to claim 4, it is characterised in that：The secondary oil-filtering apparatus is withdrawable
Structure, cotton class oil suction medium is provided with it.
6. 3D distributions smoke exhaust ventilator according to claim 5, it is characterised in that：The first fume-exhausting component and
The fume-exhausting supervisor of three fume-exhausting components is rotary type structure, can surround central axis spin where fume-exhausting is responsible for.
7. 3D distributions smoke exhaust ventilator according to claim 6, it is characterised in that：The rotary type structure includes miniature
Motor and the gear being connected with Miniature electric machine output shaft, the outer wall that the gear is responsible for fume-exhausting engages, and micromachine
Electrically connected with control system.
8. 3D distributions smoke exhaust ventilator according to claim 7, it is characterised in that：Each oil suction of second fume-exhausting component
Stop part is also arranged with cigarette pawl, stretches out on hole and is provided with packing ring.
9. 3D distributions smoke exhaust ventilator according to claim 8, it is characterised in that：The end of the cooking fume exhaust pipe is also connected with
There is the mist extractor base with stop valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721016724.0U CN207196574U (en) | 2017-08-15 | 2017-08-15 | A kind of adjustable 3D distributions smoke exhaust ventilator of multijaw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721016724.0U CN207196574U (en) | 2017-08-15 | 2017-08-15 | A kind of adjustable 3D distributions smoke exhaust ventilator of multijaw |
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| Publication Number | Publication Date |
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| CN207196574U true CN207196574U (en) | 2018-04-06 |
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| CN201721016724.0U Expired - Fee Related CN207196574U (en) | 2017-08-15 | 2017-08-15 | A kind of adjustable 3D distributions smoke exhaust ventilator of multijaw |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107270366A (en) * | 2017-08-15 | 2017-10-20 | 青岛大学 | A kind of distributed smoke exhaust ventilators of the adjustable 3D of multijaw |
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2017
- 2017-08-15 CN CN201721016724.0U patent/CN207196574U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107270366A (en) * | 2017-08-15 | 2017-10-20 | 青岛大学 | A kind of distributed smoke exhaust ventilators of the adjustable 3D of multijaw |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20180406 Termination date: 20200815 |