CN108426336A - A kind of dual-purpose Wind discharging hat - Google Patents
A kind of dual-purpose Wind discharging hat Download PDFInfo
- Publication number
- CN108426336A CN108426336A CN201810547995.1A CN201810547995A CN108426336A CN 108426336 A CN108426336 A CN 108426336A CN 201810547995 A CN201810547995 A CN 201810547995A CN 108426336 A CN108426336 A CN 108426336A
- Authority
- CN
- China
- Prior art keywords
- air flue
- pedestal
- dual
- exhaust
- wind discharging
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F17/00—Vertical ducts; Channels, e.g. for drainage
- E04F17/02—Vertical ducts; Channels, e.g. for drainage for carrying away waste gases, e.g. flue gases; Building elements specially designed therefor, e.g. shaped bricks or sets thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F2007/004—Natural ventilation using convection
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Air-Flow Control Members (AREA)
- Ventilation (AREA)
Abstract
The present invention provides a kind of dual-purpose Wind discharging hat, include the pedestal with the first air flue and the rainproof cover plate outside the pedestal and above first air flue, it further include the logical blank pipe set on the pedestal side, there is the second air flue being connected to first air flue in the logical blank pipe, the exhaust equipment that can periodically open and close is equipped in second air flue, the pedestal is equipped with the check plate for sealing first air flue.The present invention starts the exhaust of exhaust equipment exhausting in system exhaust high pressure, high speed concentrative time interval, enhances exhaust capacity；It is closed in system low-voltage, low speed period exhaust equipment, blast cap natural exhaust.
Description
Technical field
The present invention relates to residential kitchen and toilets to concentrate exhaust passage system technical field, especially provides a kind of dual-purpose Wind discharging hat.
Background technology
Currently, the Wind discharging hat applied to house exhaust passage system air outlet has natural exhaust and power air draft two major classes.This
The two equal existing defects of class Wind discharging hat：Wherein, natural exhaust cap concentrates the exhaust of exhaust period powerless in user；Power Wind discharging hat is in length
When period power air draft, noise is big, power consumption is big, and there is big resistance again when shutting down natural exhaust.
Invention content
The purpose of the present invention is to provide a kind of dual-purpose Wind discharging hats, it is intended to solve the existing exhaust of Wind discharging hat in the prior art
Powerless, power consumption, noise, the technical problems such as big resistance.
To achieve the above object, the technical solution adopted by the present invention is：A kind of dual-purpose Wind discharging hat, including there is the first air flue
Pedestal and the rainproof cover plate outside the pedestal and above first air flue, further include being set to the pedestal one
The logical blank pipe of side, the logical blank pipe is interior to have the second air flue being connected to first air flue, and being equipped in second air flue can
The exhaust equipment that timing opens and closes, the pedestal are equipped with the check plate for sealing first air flue.
Further, the exhaust equipment include motor, the impeller on the output shaft of the motor and with it is described
Timing/level pressure/constant speed headstock gear of motor electrical connection.
Further, the cross section of first air flue is round, oval, polygon or abnormity.
Further, first air flue is cross-section channel, alternatively, first air flue is variable section channel.
Further, the pedestal is externally connected with multiple fixed links, and the rainproof cover plate is fixed on multiple fixed links
Top.
Further, it is additionally provided with wind shield outside the pedestal, the wind shield is enclosed around 360 degree of totally enclosed types of the pedestal
It closes, the wind shield, the pedestal and the rainproof cover plate are fixedly connected by multiple fixing pieces.
Further, the fixing piece bending is in V-shape, the V-shape fixing piece middle part inflection point and the wind shield
Inner wall be fixedly connected, one end is fixedly connected with the rainproof cover plate at the V-shape fastener openings, the fixed V words
The other end is fixedly connected with the pedestal at type fastener openings.
Further, the rainproof cover plate outer edge is equipped with side of dripping.
Further, second air flue is cross-section channel, alternatively, second air flue is variable section channel, alternatively,
Second air flue is bending channel.
Further, the logical blank pipe is two, and opposite to be set to the pedestal both sides, first air flue is interior and is located at institute
It states and is equipped with demarcation strip below check plate, the check plate underlying space in first air flue is separated to form two by the demarcation strip
A cavity is connected to two second air flues respectively.
Beneficial effects of the present invention：
In the present invention, user concentrates the exhaust period, opens exhaust equipment, and the second air flue of exhaust equipment pair is taken out into action edge
Wind, while check plate is in closed state, seals the first air flue, at this point, gas is entered by the first air flue, and is arranged by the second air flue
Go out, in this way, starting the exhaust of exhaust equipment exhausting in system exhaust high pressure, high speed concentrative time interval, enhances exhaust capacity；And it is non-pooled
It is vented the period, closes exhaust equipment, meanwhile, check plate is opened, at this point, gas is entered by the first air flue, and passes through the first air flue
It is naturally drained with the second air flue, in this way, the fragmentary exhaust period exhaust equipment in system low-voltage, low speed is closed, blast cap is arranged naturally
Wind so solves current natural exhaust cap and concentrates the exhaust of exhaust period powerless in user；Power Wind discharging hat is in long duration power
When air draft, noise is big, power consumption is big, and there are problems that big resistance again when shutting down natural exhaust.
Description of the drawings
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description be only the present invention some
Embodiment for those of ordinary skill in the art without having to pay creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the side structure schematic view for the dual-purpose Wind discharging hat that the embodiment of the present invention one provides, and shows exhaust equipment
Air draft path when unlatching；
Fig. 2 is the schematic top plan view of Fig. 1；
Fig. 3 is the side structure schematic view of dual-purpose Wind discharging hat provided by Embodiment 2 of the present invention, and shows exhaust equipment
Air draft path when closing；
Fig. 4 is the schematic top plan view of Fig. 3；
Fig. 5 is the side structure schematic view for the dual-purpose Wind discharging hat that the embodiment of the present invention three provides, and shows exhaust equipment
Air draft path when closing；
Fig. 6 is the schematic top plan view of Fig. 5；
Fig. 7 is the sectional view of wind shield in the dual-purpose Wind discharging hat that the embodiment of the present invention four provides；
Fig. 8 is the sectional view of rainproof cover plate in the dual-purpose Wind discharging hat that the embodiment of the present invention five provides；
Fig. 9 is the sectional view of rainproof cover plate in the dual-purpose Wind discharging hat that the embodiment of the present invention six provides；
Wherein, each reference numeral in figure：
10- pedestals；The first air flues of 11-；12- bottom plates；121- mounting holes；13- sleeves；14- fixed links；20- rainproof cover plates；
21- tablets；22- bending plates；30- leads to blank pipe；The second air flues of 31-；40- exhaust equipments；41- motors；42- impellers；50- non-returns
Plate；60- wind shields；61- penetrates plate；70- fixing pieces；80- demarcation strips.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " length ", " width ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated dress
It sets or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as the limit to the present invention
System.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be that machinery connects
It connects, can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary in two elements
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
Embodiment one
With reference to figure 1, Fig. 2, dual-purpose Wind discharging hat provided in an embodiment of the present invention includes the pedestal 10 with the first air flue 11 with
And outer and above the first air flue 11 the rainproof cover plate 20 set on pedestal 10, further include the logical blank pipe set on 10 side of pedestal
30, leading to, there is the second air flue 31, the second air flue 31 to be connected to the first air flue 11 in blank pipe 30, and being equipped in the second air flue 31 can timing
The exhaust equipment 40 of keying, pedestal 10 are equipped with the check plate 50 for sealing the first air flue 11.
In the embodiment of the present invention, user concentrates the exhaust period, opens exhaust equipment 40, exhaust equipment 40 is to the second air flue 31
Into action edge exhausting, check plate 50 is in closed state, seals the first air flue 11, at this point, gas is entered by the first air flue 11, and
It is discharged by the second air flue 31, in this way, starting the exhaust of 40 exhausting of exhaust equipment, enhancing in system exhaust high pressure, high speed concentrative time interval
Exhaust capacity, as shown in Figure 1；And the non-pooled exhaust period, exhaust equipment 40 is closed, meanwhile, check plate 50 is opened, at this point, gas
Body is entered by the first air flue 11, and naturally drained by the first air flue 11 and the second air flue 31, in this way, in system low-voltage, low speed
Fragmentary exhaust period exhaust equipment 40 is closed, blast cap natural exhaust, is so solved current natural exhaust cap and is concentrated row in user
The exhaust of gas period is powerless；For power Wind discharging hat in long duration power air draft, noise is big, power consumption is big, and when shutting down natural exhaust
There are problems that big resistance again.
In the present embodiment, exhaust equipment 40 include motor 41, the impeller 42 on the output shaft of motor 41 and with electricity
Timing/level pressure/constant speed headstock gear (not shown) that machine 41 is electrically connected.Exhaust passage system concentrates the exhaust period：Kitchen system
In the morning 6 as unified:30-8:30, noon is generally 11:00-13:00, at night generally 18:00-20:00；Toilet system
Generally in the morning 6:30-8:30, evening 20:00-22:00.The general concentration exhaust period is also that system pressure is big, when flow velocity is fast
Section, therefore, headstock gear can be that timing/level pressure/constant speed opens and closes.
In the present embodiment, pedestal 10 includes bottom plate 12 and the sleeve 13 positioned at bottom plate 12, and the first air flue 11 is from top to bottom
Sleeve 13 and bottom plate 12 are penetrated through, bottom plate 12 is equipped with mounting hole 121 for being fixed on pedestal 10.In the present embodiment, the first air flue
11 cross section is rectangle.As an alternative, the cross section of the first air flue 11 may be round, oval, other polygon
Shape or abnormity.
In the present embodiment, sleeve 13 is straight tube, i.e. the first air flue 11 is cross-section channel, is along air-flow flow path direction the
The cross section of one air flue 11 is identical.As an alternative, the first air flue 11 or variable section channel, are along air-flow flow path
The cross section of the first air flue of direction 11 gradually changes.
In the present embodiment, the pedestal 10 is externally connected with four fixed links 14, and four fixed links 14 are individually fixed in section
Rectangular 13 4 side of sleeve, rainproof cover plate 20 are fixed on four 14 tops of fixed link.
In the present embodiment, 20 outer edge of rainproof cover plate is equipped with side (not shown) of dripping.Side of dripping is set, convenient for collecting
The water droplet formed when condensation of moisture.
In the present embodiment, lead to blank pipe 30 be cylindrical tubes, the second air flue 31 be cross-section channel, be logical blank pipe 30 be etc.
Diameter pipe.Certainly, logical blank pipe may be reduced pipe, in this way, the second air flue 31 is variable section channel.Certainly, logical blank pipe can also
For bending pipe, in this way, the second air flue 31 is curved channel.
In the present embodiment, check plate 50 is set in the first air flue 11 and position is higher than logical blank pipe 30, in this way, when its opening or
The first air flue 11 could be opened or blocked when closing and does not influence the second air flue 31.As an alternative, check plate 50 also may be used
To be set to 13 top of sleeve.In the present embodiment, check plate 50 is two, and certainly, check plate may be one.
In the present embodiment, check plate 50 is the non-return structure that can be blown open by natural wind and be closed by dead weight, alternatively, only
Plate 50 is returned to open and close by solenoid valve.
Further, in this embodiment being equipped with gas-filtering device (not shown) at 11 air inlet of the first air flue.Such as
This, tentatively filters impurity, the oil stain etc. in gas, and impurity, oil stain is avoided to form dirt in inner wall into the first air flue 11
Stain.
Embodiment two
With reference to Fig. 3, Fig. 4, the present embodiment with embodiment one the difference is that, be additionally provided with wind shield 60 outside pedestal 10,
Wind shield 60 is that 360 degree of totally enclosed types enclose, and the cross section that wind shield 60 encloses is rectangular around pedestal 10.As alternative
Case, wind shield 60 or semi-enclosed enclosing, baffle can also be enclosed in other shapes, such as round, ellipse or other
Abnormity.
In the present embodiment, wind shield 60, pedestal 10 and rainproof cover plate 20 are fixedly connected by multiple fixing pieces 70.Specifically
Ground, the bending of each fixing piece 70 is in V-shape, and 70 middle part inflection point of V-shape fixing piece is fixedly connected with the inner wall of wind shield 60, V
70 opening one end of font fixing piece is fixedly connected with rainproof cover plate 20, fixed 70 opening the other end of V-shape fixing piece
It is fixedly connected with pedestal 10.
The present embodiment is also differ in that with embodiment one, and in the present embodiment, the first air flue 11 is cross-section channel.I.e.
Sleeve 13 is in straight-tube shape.And in the present embodiment, check plate 50 is set to position in the first air flue 11 and slightly above leads to blank pipe 30.
Embodiment three
With reference to Fig. 5, Fig. 6, the present embodiment with embodiment two the difference is that, it is logical to be oppositely arranged two in 10 both sides of pedestal
Blank pipe 30 is each equipped with above-mentioned exhaust equipment 40 in logical blank pipe 30.It is set in first air flue 11 and positioned at 50 lower section of check plate
There is a demarcation strip 80,50 underlying space of check plate in first air flue 11 is separated to form two cavitys respectively with two by demarcation strip 80
Second air flue 31 is connected to.In this way, ensureing that exhaust equipment 40 is respectively at logical blank pipe 30 when check plate 50 closes the first air flue 11
When interior exhausting, the air-flow entered by 11 import of the first air flue is divided into two parts by being discharged in two second air flues 31.
Example IV
With reference to Fig. 7, the present embodiment with embodiment one the difference is that, the difference of the present embodiment and embodiment one
It is, the structure of wind shield 60 is different, therefore illustrates only 60 structure of wind shield.In the present embodiment, wind shield 60 includes by interior
The multistage being arranged outward penetrates plate 61.Wind shield 60 is so set, make air-flow be acted on by smooth pressure difference, conducive to the row of gas
Go out.
Embodiment five
With reference to Fig. 8, the present embodiment with embodiment one the difference is that, 20 structure of rainproof cover plate is different, therefore only shows
Go out the structure of rainproof cover plate 20.In the present embodiment, rainproof cover plate 20 includes positioned at the tablet 21 of bottom and on tablet 21
The bending plate 22 of side, bending plate 22 are folded upward to form protrusion at an acute angle.Blast cap is arranged in this way, natural wind can be reduced
The sound when drag effects of wind and reduction are rained.
Embodiment six
With reference to Fig. 9, the present embodiment with embodiment five the difference is that, the structure of rainproof cover plate 20 is different, therefore only
The structure of rainproof cover plate 20 is shown.In the present embodiment, 20 middle part of rainproof cover plate is folded upward at formation protrusion at an acute angle.So set
It sets, effect is identical as embodiment five, but more saves material.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (10)
1. a kind of dual-purpose Wind discharging hat, includes pedestal with the first air flue and outside the pedestal and be located at first gas
Rainproof cover plate above road, it is characterised in that：Further include the logical blank pipe set on the pedestal side, have in the logical blank pipe with
Second air flue of first air flue connection, is equipped with the exhaust equipment that can periodically open and close in second air flue, on the pedestal
Equipped with the check plate for sealing first air flue.
2. dual-purpose Wind discharging hat according to claim 1, it is characterised in that：The exhaust equipment includes motor, set on described
Impeller on the output shaft of motor and the timing/level pressure/constant speed headstock gear being electrically connected with the motor.
3. dual-purpose Wind discharging hat according to claim 1, it is characterised in that：The cross section of first air flue is round, ellipse
Round, polygon or abnormity.
4. dual-purpose Wind discharging hat according to claim 1, it is characterised in that：First air flue is cross-section channel, alternatively,
First air flue is variable section channel.
5. dual-purpose Wind discharging hat according to claim 1, it is characterised in that：The pedestal is externally connected with multiple fixed links, institute
Rainproof cover plate is stated to be fixed at the top of multiple fixed links.
6. dual-purpose Wind discharging hat according to claim 1, it is characterised in that：It is additionally provided with wind shield, the gear outside the pedestal
Aerofoil is enclosed around 360 degree of totally enclosed types of the pedestal, and the wind shield, the pedestal and the rainproof cover plate pass through multiple fixations
Part is fixedly connected.
7. dual-purpose Wind discharging hat according to claim 6, it is characterised in that：The fixing piece bending is in V-shape, the V words
Inflection point is fixedly connected with the inner wall of the wind shield in the middle part of type fixing piece, one end and institute at the V-shape fastener openings
It states rainproof cover plate to be fixedly connected, the other end is fixedly connected with the pedestal at the fixed V-shape fastener openings.
8. dual-purpose Wind discharging hat according to claim 1, it is characterised in that：The rainproof cover plate outer edge is equipped with side of dripping.
9. dual-purpose Wind discharging hat according to claim 1, it is characterised in that：Second air flue is cross-section channel, alternatively,
Second air flue is variable section channel, alternatively, second air flue is bending channel.
10. dual-purpose Wind discharging hat according to claim 1, it is characterised in that：The logical blank pipe is two, opposite set on described
Pedestal both sides, are equipped with demarcation strip in first air flue and below the check plate, the demarcation strip is by first gas
The check plate underlying space is separated to form two cavitys and is connected to respectively with two second air flues in road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810547995.1A CN108426336B (en) | 2018-05-31 | 2018-05-31 | Dual-purpose exhaust cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810547995.1A CN108426336B (en) | 2018-05-31 | 2018-05-31 | Dual-purpose exhaust cap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108426336A true CN108426336A (en) | 2018-08-21 |
| CN108426336B CN108426336B (en) | 2023-09-29 |
Family
ID=63164108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810547995.1A Active CN108426336B (en) | 2018-05-31 | 2018-05-31 | Dual-purpose exhaust cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108426336B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3366030A (en) * | 1964-04-13 | 1968-01-30 | Colt Ventilation & Heating Ltd | Roof mounted ventilator |
| EP0050488A2 (en) * | 1980-10-16 | 1982-04-28 | Colt International Holdings A.G. | Improvements relating to ventilators |
| KR200382973Y1 (en) * | 2005-02-17 | 2005-04-27 | 주식회사 제일테크 | Switchgear of exhaust adjusting damper in dry air duct for apartment house |
| CN201785995U (en) * | 2010-07-09 | 2011-04-06 | 西安建筑科技大学 | High-rise residential kitchen cross-smoke prevention exhausting passage |
| CN102012074A (en) * | 2009-09-07 | 2011-04-13 | 三星电子株式会社 | Ventilator |
| CN103485518A (en) * | 2012-06-13 | 2014-01-01 | 张琦 | Drafting exhaust hood |
| CN205641342U (en) * | 2016-05-24 | 2016-10-12 | 王青山 | Energy -conserving fan in turriform roof |
| CN207349170U (en) * | 2017-05-19 | 2018-05-11 | 广东肇庆德通有限公司 | Roof axial fan |
| CN208606326U (en) * | 2018-05-31 | 2019-03-15 | 深圳市万居科技股份有限公司 | A kind of dual-purpose Wind discharging hat |
-
2018
- 2018-05-31 CN CN201810547995.1A patent/CN108426336B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3366030A (en) * | 1964-04-13 | 1968-01-30 | Colt Ventilation & Heating Ltd | Roof mounted ventilator |
| EP0050488A2 (en) * | 1980-10-16 | 1982-04-28 | Colt International Holdings A.G. | Improvements relating to ventilators |
| KR200382973Y1 (en) * | 2005-02-17 | 2005-04-27 | 주식회사 제일테크 | Switchgear of exhaust adjusting damper in dry air duct for apartment house |
| CN102012074A (en) * | 2009-09-07 | 2011-04-13 | 三星电子株式会社 | Ventilator |
| CN201785995U (en) * | 2010-07-09 | 2011-04-06 | 西安建筑科技大学 | High-rise residential kitchen cross-smoke prevention exhausting passage |
| CN103485518A (en) * | 2012-06-13 | 2014-01-01 | 张琦 | Drafting exhaust hood |
| CN205641342U (en) * | 2016-05-24 | 2016-10-12 | 王青山 | Energy -conserving fan in turriform roof |
| CN207349170U (en) * | 2017-05-19 | 2018-05-11 | 广东肇庆德通有限公司 | Roof axial fan |
| CN208606326U (en) * | 2018-05-31 | 2019-03-15 | 深圳市万居科技股份有限公司 | A kind of dual-purpose Wind discharging hat |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108426336B (en) | 2023-09-29 |
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