CN205607970U - Indoor air circumstance monitoring facilities's air inlet structure - Google Patents
Indoor air circumstance monitoring facilities's air inlet structure Download PDFInfo
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- CN205607970U CN205607970U CN201620409280.6U CN201620409280U CN205607970U CN 205607970 U CN205607970 U CN 205607970U CN 201620409280 U CN201620409280 U CN 201620409280U CN 205607970 U CN205607970 U CN 205607970U
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Abstract
The utility model discloses an indoor air circumstance monitoring facilities's air inlet structure, air inlet structure set up on indoor air circumstance monitoring facilities's base, including at least one hole with be used for hole and the gas collection structure that detects the wind channel intercommunication, the base edge is to the top bending type face that becomes to buckle, the hole sets up on the face of buckling, partial hole and gas collection structure intercommunication for with the leading -in wind channel of detecting of tracer gas, the electric apparatus room that is used for in surplus hole and the indoor air circumstance monitoring facilities installing electric elements feeds through, the utility model discloses a buckle the base edge to the top, form the face of buckling to set up the hole on the face of buckling, make the hole be higher than and places the certain distance in plane, even have ponding or other foreign matters on the plane, also unable get into indoor air circumstance monitoring facilities in, the utility model discloses a structure makes hole site in the oblique below of base, and the foreign matter above coming from also can't be somebody's turn to do the design and make the inside and good isolation of external environment formation of casing in the hole get into indoor air circumstance monitoring facilities.
Description
Technical field
This utility model belongs to environment measuring part of appliance field, specifically, relates to the air inlet structure of a kind of indoor air environment monitoring device.
Background technology
In recent years, air pollution problems inherent is day by day serious, and regional atmospheric pollution particularly highlights, and the fine particles pollutions such as haze affects the trip of people, PM2.5 cause the extensive concern of the common people.The complicated component of outdoor pollutant, the gaseous contamination causing indoor is also polluted by harmful gass such as traditional formaldehyde, carbon monoxides, having become the gas-solid comprehensive pollution that formaldehyde, carbon monoxide and PM2.5 particulate matter etc. cause, people are more and more higher to the attention rate of air quality situation in office around and living environment.
At present, on the market for the detection of room air, use hand-held tester more, such detection equipment possesses and is easy to carry, the advantage such as easy to use, during use, by the triggering to the button on detector, display i.e. shows current air mass situation, but such detector cannot realize detecting constantly and following the tracks of, and after such detector uses, often place without fixed position, it is difficult to find, most importantly place ambient conditions cannot predict, and the air inlet of current detector and venthole may be contained within the front of housing or the position of the most exposed of the back side more, without spacer between electrical equipment and air inlet and venthole, if there is hydrops or the drippage of corrosive substance in environment, it is easy to make foreign body be dropped or immersed into, cause the damage of components and parts.Patent CN204330714U discloses a kind of hand held air detector housing, including fore shell, back cover and bonnet, the fore shell first half is provided with display screen mouth, lower half is provided with air inlet, air inlet is arranged over gas outlet, the position of the corresponding air inlet of back cover and gas outlet is provided with convex shape groove, and this groove and described fore shell snap together formation Guan Bi airstream compartment.Detector disclosed in this patent is the front that cuboid, air inlet and venthole are arranged at housing, mostly is and faces up or back side up when of placement, being easier to cause the entrance of foreign body, block or damage electric elements, electrical equipment is in underface, exposed outside, affect attractive in appearance.
In view of this special proposition this utility model.
Utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, it is provided that one prevents foreign body or corrosive liquids from being instilled by fresh air inlet and louvre or immersing internal body, and electric elements cause the air inlet structure of damage；The gas entering detection air flue is buffered, prevents gas admission velocity too fast, electrical equipment is caused damage, improve the air inlet mechanism in the service life of indoor air environment monitoring device；Gas-collecting structure is easy to the air inlet structure of a kind of indoor air environment monitoring device of cleaning, the more aesthetically pleasing practicality of base.
For solving above-mentioned technical problem, the basic conception of this utility model employing technical scheme is:
A kind of air inlet structure of indoor air environment monitoring device, described air inlet structure is arranged on the base of indoor air environment monitoring device, including at least one hole and the gas-collecting structure for hole is connected with detection air channel, described base edge is bent to form bending side upward, described hole is arranged on bending side, partial hole connects with gas-collecting structure, and for detected gas imports detection air channel, remaining hole connects with the electric apparatus room being used for installing electrical equipment in indoor air environment monitoring device.
Described Kong Weiyi, the part in described hole connects with gas-collecting structure, and for detected gas imports detection air channel, the remainder in described hole connects with the electric apparatus room installing electrical equipment of indoor air environment monitoring device.
Described hole is multiple, and each hole is arranged in groups respectively air inlet group and louvre group；Described air inlet group includes at least one air inlet connected with the detection air channel of indoor air environment monitoring device, and described louvre group includes that at least one hole connected with indoor air environment monitoring device electric apparatus room is louvre.
Described air inlet and louvre along bending side circumferential array, left louvre group that described louvre group includes being divided into air inlet group both sides and right louvre group.
The subregion of bending side or Zone Full are placed with multiple holes that angle is arranged at equal intervals.
Described air inlet is arranged with electrical equipment heteropleural.
The shape in each hole is strip, and the major axis of strip and base radially copline, described air inlet is the most equidistantly distributed with louvre.
Described gas-collecting structure includes two dividing plates being vertically arranged and a horizontally disposed cover plate, and air inlet group and left and right louvre group are isolated by two dividing plates respectively；First end of two dividing plates is connected, the second end extends to base outer perimeter；The downside of two dividing plates is connected with base, and air inlet group is arranged at bottom cavity, with constitute through air inlet group be connected externally to the cavity that leads to；Described cover plate lid is located on cavity, and base inward flange of fitting is arranged, and described cover plate covers above air inlet group, and at a distance of certain interval to constitute upper shed between cover plate periphery and the first end of dividing plate, described upper shed is connected with detection air channel；
Preferably, the dismountable lid of described cover plate is located on cavity or cover plate and dividing plate are formed in one part.
Arranging mounting terminal on described cavity bottom surface, described mounting terminal is provided with female thread, and position corresponding with mounting terminal on described cover plate is provided with installing hole, and described cover plate is connected by screw with mounting terminal, makes cover plate be tightly connected with the free end of dividing plate.
Second end of dividing plate is to extend along base radial direction, and described cover plate is to cover the sector above air inlet group correspondence, and upper end with corresponding dividing plate respectively, the both sides of cover plate is connected.
After using technique scheme, this utility model compared with prior art has the advantages that by being bent upward by base edge, form bending side, and hole is arranged on bending side, hole is made to be higher than holding plane a certain distance, even if having hydrops or other foreign bodies in plane, also cannot be introduced in indoor air environment monitoring device, and the obliquely downward that structure of the present utility model makes hole be positioned at base, the foreign body coming from top also cannot be in hole enters indoor air environment monitoring device, this design makes enclosure interior and external environment define good isolation；Air inlet and louvre are arranged in groups, and make the structure more centralization in indoor air environment monitoring device with identical function, reduce the volume of body；Air inlet is equidistantly distributed with louvre, makes air inlet become axial symmetry, bilateral stress balance, it is easier to make stable machine with louvre, makes pore size distribution more uniform, attractive in appearance simultaneously；Air inlet is arranged with electrical equipment antarafacial with louvre, makes electrical equipment cannot pass through hole exposed outside, makes preferably to protect electrical equipment, the most attractive in appearance；Hole is set to strip, and bending side circumference is more saved space, and on the premise of arranging equal number hole, the area taking side face is less, is more beneficial for providing holes in less space, leaves more installing space to electrical equipment, and hole is placed equidistant more attractive in appearance；It is collected by the gas entered in the air inlet that gas-collecting structure will be connected with detection air channel, concentration is delivered to detect air channel, simultaneously, detecting element in detection air channel is highly sensitive, easily damaged, when but gas admission velocity is too fast, when especially starting shooting, gas pours in suddenly, often electrical equipment is caused damage, gas-collecting structure also serves as cushion chamber, form cushioning effect, reduce gas to the impact of electric elements in indoor air environment monitoring device, extend the service life of electric elements；Owing to indoor air environment monitoring device life-time service or use environment solidity granule are more, air collecting chamber inwall is easily made to adhere to solid matter, by gas-collecting structure being set to dividing plate and the two-part demountable structure of lid, this structure convenient disassembly, cleans simple；The electric apparatus room in detection air channel with indoor air environment monitoring device is separated by gas-collecting structure, makes detection air channel and device heat dissipation channel separately, it is to avoid detection error；Louvre group is arranged at the air inlet group left and right sides, owing to being provided with blower fan in the detection air channel of indoor air environment monitoring device, gas is sucked detection air channel from air inlet by blower fan, air inlet is made to be formed about low pressure, gas near louvre supplements in time, and then it is formed about low pressure at louvre, then it is sucked out under this hypobaric effect of the gas in the electric panel room being connected with louvre, its body is made to form good circular radiating, louvre component is located at air inlet group both sides, forming bilateral circular radiating system, radiating effect is more preferable.
Below in conjunction with the accompanying drawings detailed description of the invention of the present utility model is described in further detail.
Accompanying drawing explanation
Accompanying drawing, as a part of the present utility model, is used for providing being further understood from of the present utility model, and schematic description and description of the present utility model is used for explaining this utility model, but does not constitute improper restriction of the present utility model.Obviously, the accompanying drawing in describing below is only some embodiments, to those skilled in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawings according to these accompanying drawings.In the accompanying drawings:
Fig. 1 is the structural representation of this utility model embodiment one；
Fig. 2 is the structural representation of this utility model embodiment two；
Fig. 3 is the structural representation of this utility model embodiment three；
Fig. 4 is the structure schematic top plan view of this utility model embodiment four；
Fig. 5 is the structure cross-sectional schematic of this utility model embodiment four；
Fig. 6 is this utility model embodiment five card and portion's partial structurtes schematic diagram；
Fig. 7 is the structural representation of this utility model embodiment six；
Fig. 8 is gas flow schematic diagram near this utility model air inlet and louvre；
Fig. 9 is this utility model overall gas flow direction structure schematic diagram.
In figure: 101, hole 102, gas-collecting structure 103, bending side 104, electric apparatus room 105, air inlet 106, louvre 301, detection air channel 107, lower ending opening 108, dividing plate 109, cover plate the 110, first end the 111, second end 112, cavity 113, upper shed 114, mounting terminal 115, installing hole 116, groove 117, card and portion A
It should be noted that these accompanying drawings and word describe and be not intended as limiting concept of the present utility model by any way, but it is that those skilled in the art illustrate concept of the present utility model by reference specific embodiment.
Detailed description of the invention
For making the purpose of this utility model embodiment, technical scheme and advantage clearer, below in conjunction with the accompanying drawing in this utility model embodiment, technical scheme in embodiment is clearly and completely described, following example are used for illustrating this utility model, but are not limited to scope of the present utility model.
Embodiment one:
As shown in Figure 1, a kind of air inlet structure of indoor air environment monitoring device, air inlet structure is arranged on the base of indoor air environment monitoring device, base is square, including a hole 101 and the gas-collecting structure 102 for hole 101 is connected with detection air channel, base edge bends upward, form bending side 103, middle part is a plane, for steadily placing this indoor air environment monitoring device, hole is arranged on bending side 103, half hole in this hole 101 connects with gas-collecting structure 102, detection air channel it is provided with in body, gas-collecting structure 102 connects with detection air channel, detected gas is imported detection air channel, remain half hole 101 to connect for installing the electric apparatus room 104 of electrical equipment with in indoor air environment monitoring device.
Wherein, the shape of base can also be any shapes such as circle, rectangle, rhombus, ellipse.
Bending side is formed by making base edge be folded upward at, middle part is plane, indoor air environment monitoring device can be made to place be arranged on bending side in hole smoothly simultaneously, hole is made to be higher than holding plane a certain distance, even if making have hydrops or other foreign bodies in plane, also cannot be introduced in indoor air environment monitoring device, and owing to being folded upward at, bending side is angled with planar shaped, hole is made to be positioned at the obliquely downward of base, the foreign body coming from top also cannot be in hole enters indoor air environment monitoring device, this design makes indoor air environment monitoring device internal and external environment defines good isolation.
Embodiment two:
As shown in Figure 2, difference with embodiment one is, base is circular, multiple hole it is provided with on the base of this indoor air environment monitoring device, hole is for being arranged in groups, the Kong Zuwei air inlet 105 groups being connected with detection air channel, the Kong Zuwei louvre being connected with electric panel room 106 groups, air inlet 105 groups is one group, louvre 106 groups is two groups, two groups of louvres 106 groups are separately positioned on the left and right sides of air inlet 105 groups, air inlet 105 groups and louvre 106 groups are along bending side 103 circumferential array the half that covers bending side, wherein air inlet 105 groups is connected with gas-collecting structure 102, gas-collecting structure 102 connects with the air inlet in detection air channel, gas by air inlet 105 enter gas-collecting structure 102 be re-introduced into detect air channel detect.
Wherein, air inlet group and louvre group can also be many groups, and air inlet group and louvre group cover the whole bending side of bending side along bending side circumferential array, air inlet group and louvre group, it is also possible to be any proportion area of the bending side such as 3/4,1/4.
Embodiment three:
As shown in Figure 3, difference with embodiment two is, air inlet 105 groups is arranged on base front surface centre position, the both sides that air inlet is 105 groups set up left louvre 106 groups and right louvre 106 groups separately, it is positioned at the rear of base for installing the electric apparatus room 104 of electrical equipment in base, air inlet 105 and louvre 106 can also be arranged on the back side of base, electrical equipment in electric panel room 4 is arranged on before the inside of base, even left and right distribution can also, as long as ensureing that the installation position of air inlet group and louvre group and electrical equipment is set to heteropleural and arranges；Air inlet and louvre are that the radian according to bending side is offered on bending side 103, each air inlet 105 and louvre 106 be shaped as strip, each hole extends to top edge from the lower limb of bending side, the lower limb in hole is slightly above the plane of the lower limb line i.e. slightly above bottom surface of bending side, the major axis in hole and base radially extended line copline, spaced set between each hole of air inlet 105 groups and louvre 106 groups, pore size distribution is on first 1/2 of bending side.
Wherein, the shape in hole can be circular, oval or other arbitrary shapes；Can also non-equidistant placement between each hole of hole group.
Embodiment four:
As illustrated in figures 4-5, the difference with embodiment three is, gas-collecting structure includes two dividing plates being vertically arranged 108 and a horizontally disposed cover plate 109, and air inlet 105 groups and left and right louvre 106 groups are isolated by two dividing plates 108 respectively；First end 110 of two dividing plates is connected, the second end 111 extends to base outer perimeter, and be tightly connected with the periphery of base, the downside of two dividing plates 108 is tightly connected with base, constitute through air inlet 105 groups be connected externally to the cavity 112 that leads to, air inlet 105 groups is positioned at bottom cavity 112；nullLouvre 106 groups is positioned at the left and right sides of cavity 112，Cover plate 109 lid is located at directly over cavity 112，And base inward flange of fitting is arranged，Cover plate 109 will cover above air inlet 105 groups，At a distance of certain interval to constitute upper shed 113 between cover plate 109 periphery and the first end 110 of dividing plate 108，This upper shed 113 is connected with the lower ending opening 107 in detection air channel 301，The bottom surface of cavity 112 is provided with mounting terminal 114，It is provided with screw thread in mounting terminal 114，Mounting terminal 114 is the most identical with dividing plate 108 or slightly below dividing plate 108 height，Position corresponding with mounting terminal 114 on cover plate 109 is provided with installing hole 115，Mounting terminal 114 is connected by screw with cover plate 109，Make cover plate 109 cover afterwards and cavity 112 upper surface realizes seal closure.
Wherein, the shape of upper shed can also be circular, square, and rectangle organizes gas-collecting structure if arranged more, and its opening is it is also possible to make cross.
To be connected with detection air channel 301 by gas-collecting structure 102, being collected the gas entered in air inlet, meanwhile, gas-collecting structure also serves as cushion chamber and plays cushioning effect, reduce the gas impact to detection electrical equipment middle in detection air channel 301, extend the service life of electrical equipment；Owing to indoor air environment monitoring device life-time service or use environment solidity granule are more, easily make air collecting chamber inwall adhere to solid matter, by air collecting chamber is set to cavity and the two-part demountable structure of lid, this structure convenient disassembly, clean simple.
Embodiment five:
As shown in Figure 6, it is with embodiment four difference, it is provided with groove 116 outside second end of dividing plate 108, cover plate 109 is downward " п " shape, downward bending end is provided with the card matched with groove 116 and portion A 117, during use, cover plate 109 is down pressed, make card and portion A 117 enter groove 116, it is achieved dividing plate 108 and the sealing of cavity 112.
Its further groove can also be shrinkage pool, and lid is provided with the projection matched with this shrinkage pool；Groove can be horizontally disposed with, it is also possible to for being vertically arranged.
Embodiment six:
As shown in Figure 7, difference with embodiment four is, cover plate 109 can also use one-body molded with dividing plate 108, form non-removable gas-collecting structure 102, this structure cover plate 109 is unsuitable long along base radical length, i.e. upper shed 113 is more open, as long as being covered by air inlet 105, even if so making non-dismountable, it is also convenient for cleaning.
Gas flow near air inlet group and louvre group: as shown in Figure 8, air current flow direction at air inlet 105 and louvre 106, louvre 106 groups is arranged at the both sides of air inlet 105 groups, owing to being provided with blower fan in detection air channel 301, gas is sucked detection air channel 301 from air inlet by blower fan, air inlet 105 is made to be formed about low pressure, gas near louvre 106 supplements in time, and then it is formed about low pressure at louvre 106, then the gas in the electric panel room being connected with louvre 106 is sucked out under this hypobaric effect, its body is made to form good circular radiating, louvre 106 component is located at 105 groups of both sides of air inlet, form bilateral circular radiating system, radiating effect is more preferable.
Airflow direction overall in indoor air environment monitoring device: as shown in Figure 9, gas-collecting structure 102 connects with detection air channel 301, the top in detection air channel 301 is provided with fan, under the effect of fan, gas enters gas-collecting structure 102 by air inlet 105 groups, and then enter detection air channel 301, air channel is provided with sensor (such as carbon monoxide transducer, Temperature Humidity Sensor, PM2.5 sensor etc.), after the detection of gas device after testing, signal is passed to control circuit plate, show after process, outside gas after after testing is by air environment monitoring equipment in the air outlet discharge chamber on top.
The above is only preferred embodiment of the present utility model, not this utility model is made any pro forma restriction, although this utility model is disclosed above with preferred embodiment, but it is not limited to this utility model, any it is familiar with the technical staff of this patent in the range of without departing from technical solutions of the utility model, when the technology contents of available above-mentioned prompting is made a little change or is modified to the Equivalent embodiments of equivalent variations, in every case it is the content without departing from technical solutions of the utility model, any simple modification above example made according to technical spirit of the present utility model, equivalent variations and modification, all still fall within the range of this utility model scheme.
Claims (10)
1. the air inlet structure of an indoor air environment monitoring device, it is characterised in that: described air inlet structure is arranged at room air
On the base of enviromental monitoring equipment, including at least one hole and the gas-collecting structure for hole is connected with detection air channel, described base
Edge is bent to form bending side upward, and described hole is arranged on bending side, and partial hole connects with gas-collecting structure, for detecting
Gas imports detection air channel, and remaining hole connects with the electric apparatus room being used for installing electrical equipment in indoor air environment monitoring device.
The air inlet structure of a kind of indoor air environment monitoring device the most according to claim 1, it is characterised in that: described hole
Being one, the part in described hole connects with gas-collecting structure, for detected gas imports detection air channel, the remainder in described hole
The electric apparatus room installing electrical equipment with indoor air environment monitoring device is divided to connect.
The air inlet structure of a kind of indoor air environment monitoring device the most according to claim 1, it is characterised in that: described hole
For multiple, each hole is arranged in groups respectively air inlet group and louvre group；Described air inlet group includes at least one and room air
The air inlet of the detection air channel connection of enviromental monitoring equipment, described louvre group includes that at least one sets with indoor air environment monitoring
The louvre of spare electrical device room connection.
The air inlet structure of a kind of indoor air environment monitoring device the most according to claim 3, it is characterised in that enter described in:
Pore and louvre are along bending side circumferential array, and described louvre group includes left louvre group and the right side being divided into air inlet group both sides
Louvre group.
The air inlet structure of a kind of indoor air environment monitoring device the most according to claim 4, it is characterised in that bending side
Subregion or Zone Full are placed with multiple holes that angle is arranged at equal intervals.
The air inlet structure of a kind of indoor air environment monitoring device the most according to claim 5, it is characterised in that enter described in:
Pore is arranged with electrical equipment heteropleural.
The air inlet structure of a kind of indoor air environment monitoring device the most according to claim 6, it is characterised in that: each
The shape in hole is strip, and the major axis of strip and base radially copline, described air inlet is the most equidistantly distributed with louvre.
8. according to the air inlet structure of the arbitrary described a kind of indoor air environment monitoring device of claim 1 to 7, it is characterised in that:
Described gas-collecting structure includes two dividing plates being vertically arranged and a horizontally disposed cover plate, and two dividing plates are respectively by air inlet group and a left side
Right louvre group is isolated；First end of two dividing plates is connected, the second end extends to base outer perimeter；The downside of two dividing plates and base
Being connected, air inlet group is arranged at bottom cavity, with constitute through air inlet group be connected externally to the cavity that leads to；Described cover plate lid sets
On cavity, and base inward flange of fitting is arranged, and described cover plate covers above air inlet group, cover plate periphery and the first of dividing plate
At a distance of certain interval to constitute upper shed between end, described upper shed is connected with detection air channel；The dismountable lid of described cover plate sets
On cavity or cover plate and dividing plate are formed in one part.
The air inlet structure of a kind of indoor air environment monitoring device the most according to claim 8, it is characterised in that: described recessed
Arranging mounting terminal on bottom surface, chamber, described mounting terminal is provided with female thread, and position corresponding with mounting terminal on described cover plate sets
There are installing hole, described cover plate to be connected by screw with mounting terminal, make cover plate be tightly connected with the free end of dividing plate.
The air inlet structure of a kind of indoor air environment monitoring device the most according to claim 9, it is characterised in that: dividing plate
The second end be to extend along base radial direction, described cover plate is to cover the sector above air inlet group correspondence, and the both sides of cover plate are divided
It is not connected with the upper end of corresponding dividing plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620409280.6U CN205607970U (en) | 2016-05-06 | 2016-05-06 | Indoor air circumstance monitoring facilities's air inlet structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620409280.6U CN205607970U (en) | 2016-05-06 | 2016-05-06 | Indoor air circumstance monitoring facilities's air inlet structure |
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| CN205607970U true CN205607970U (en) | 2016-09-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105807009A (en) * | 2016-05-06 | 2016-07-27 | 中科同德（北京）生态科技有限公司 | Air intake structure for indoor air environment monitoring device |
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2016
- 2016-05-06 CN CN201620409280.6U patent/CN205607970U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105807009A (en) * | 2016-05-06 | 2016-07-27 | 中科同德（北京）生态科技有限公司 | Air intake structure for indoor air environment monitoring device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Air intake structure for indoor air environment monitoring device Effective date of registration: 20180917 Granted publication date: 20160928 Pledgee: Huaxia Bank, Limited by Share Ltd, Beijing subbranch Pledgor: Zhongke Tongde (Beijing) Ecological Technology Co. Ltd. Registration number: 2018990000841 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20200117 Granted publication date: 20160928 Pledgee: Huaxia Bank, Limited by Share Ltd, Beijing subbranch Pledgor: Zhongke Tongde (Beijing) Ecology Technology Co., Ltd. Registration number: 2018990000841 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Air intake structure for indoor air environment monitoring device Effective date of registration: 20200413 Granted publication date: 20160928 Pledgee: Beijing Intellectual Property Management Co., Ltd. Pledgor: ZHONGKE TONGDE (BEIJING) ECOLOGICAL TECHNOLOGY Co.,Ltd. Registration number: Y2020990000313 |