CN105807010A - Air outlet structure of indoor air environment monitoring equipment - Google Patents
Air outlet structure of indoor air environment monitoring equipment Download PDFInfo
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- CN105807010A CN105807010A CN201610299352.0A CN201610299352A CN105807010A CN 105807010 A CN105807010 A CN 105807010A CN 201610299352 A CN201610299352 A CN 201610299352A CN 105807010 A CN105807010 A CN 105807010A
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- air outlet
- top cover
- monitoring equipment
- overhead gage
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 31
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 230000002787 reinforcement Effects 0.000 claims description 13
- 238000012806 monitoring device Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- -1 formaldehyde, carbon monoxides Chemical class 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009828 non-uniform distribution Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Ventilation (AREA)
Abstract
The invention belongs to the field of environment monitoring equipment and particularly relates to an air outlet structure of indoor air environment monitoring equipment. A detection air flue is arranged in the indoor air environment monitoring equipment, and the air outlet structure is arranged at an air outlet of the air flue; an air outlet groove communicated with the air outlet is formed in the top of a shell of the indoor air environment monitoring equipment, and a top cover is mounted at an opening in the upper end of the air outlet groove and is separated from the bottom of the groove by a certain distance; a certain interval is formed between the periphery of the top cover and the side wall of the air outlet groove to form an air outlet gap, an inner flange is arranged at an upper opening of the shell, the air outlet groove consists of the inner flange and an upper baffle, and the upper baffle is used for forming the air outlet and is lapped with the inner flange to form a sealed groove bottom. Through the arrangement of the air outlet groove, the top cover is mounted at the opening in the upper end of the air outlet groove, and the air outlet is smartly hidden under the top cover, so that the dripping of foreign matters from the top of the air outlet structure is avoided, and electric elements in the air outlet structure are effectively protected.
Description
Technical field
The invention belongs to enviromental monitoring equipment field, specifically, relate to the air exhausting structure of a kind of indoor air environment monitoring equipment.
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 also more and more higher to the attention rate of around office and living environment air quality condition.
At present, on the market for the detection of room air, adopt 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, namely display shows current air mass situation, but such detector cannot realize detection constantly and follow the tracks of, and the air outlet of such detector is arranged on housing face, do not set spacer foreign body with the position of extraneous UNICOM and be easy to instill, and air outlet is arranged at surface, have a strong impact on attractive in appearance.
In view of this special proposition present invention.
Summary of the invention
The technical problem to be solved in the present invention is in that to overcome the deficiencies in the prior art, it is provided that air outlet is buried under top cover by air exhausting structure, it is to avoid the instillation of top foreign body, internal electric elements effectively serves the effect of protection, makes the wind outlet more attractive in appearance simultaneously；Gas outlet realizes cushioning effect by air exhausting structure, it is prevented that the damage of the gas electric elements to arranging on top cover, simple in construction, it is simple to the air exhausting structure of air environment monitoring equipment in the indoor sensing chamber of dismounting maintenance.
For solving above-mentioned technical problem, the present invention adopts the basic conception of technical scheme to be:
The air exhausting structure of a kind of indoor air environment monitoring equipment, indoor air environment monitoring device interior is provided with detection air channel, and the air outlet place in detection air channel is provided with air exhausting structure；The case top of indoor air environment monitoring equipment is provided with the air-out groove being connected with air outlet, and air-out groove upper end open place is provided with top cover, between top cover and bottom portion of groove in a distance；At a distance of certain interval to constitute air-out gap between periphery and the sidewall of air-out groove of top cover.
The upper shed of described housing is provided with interior flanging, and described air-out groove is made up of with detection air channel overhead gage interior flanging, and described overhead gage forms, with infolding edge lap, the bottom portion of groove sealed, and described overhead gage is provided with and detects the air outlet that air channel is connected；
Preferably, described overhead gage and housing are integrated part, make the top of housing directly form air-out groove；
It is further preferred that described overhead gage is removably mounted to detection air channel.
Also including brace rod, described brace rod is arranged at overhead gage upper surface or top cover lower surface, and top cover is placed on overhead gage through brace rod, makes between top cover and bottom portion of groove in a distance.
Described overhead gage concave downward, forms cavity, and a plurality of brace rod is arranged on the edge of cavity；Each brace rod is disposed radially respectively, and along being uniformly distributed of periphery angle at equal intervals of groove.
Being provided with reinforcement in described cavity, described reinforcement stretches out and the connection corresponding one by one with brace rod.
Described top cover and the opening of air-out groove are concentric not isometrical setting, and the air-out gap that between top cover periphery and air-out groove, gap is constituted is divided into separate multistage through each brace rod.
Described air outlet is arranged on the bottom centre position of air-out groove.
The bottom of described air-out groove is additionally provided with monitors, with indoor air environment, the through hole that the electric panel room of equipment is connected.
The sidewall of described air-out groove is the inclined-plane from up to down narrowed gradually.
Described overhead gage and top cover are connected by screw.
After adopting technique scheme; the present invention compared with prior art has the advantages that by arranging air-out groove; and top cover is installed at air-out groove upper end open place; air outlet is buried under top cover by this air exhausting structure cleverly; avoid the instillation of top foreign body; the effective effect that internal electric elements serve protection, makes wind outlet more attractive in appearance simultaneously；By arranging interior flanging on housing, interior flanging and the overhead gage for installing air outlet constitute air-out groove, overhead gage forms, with infolding edge lap, the bottom portion of groove sealed, this structure makes overhead gage and housing realize removably connecting, it is easy to the maintenance of enclosure interior electrical equipment, also allows for the cleaning of housing simultaneously；By arranging brace rod, make the bottom interval certain distance of top cover and air-out groove, for the space that the outflow offer of gas is enough, the electrical equipment offer installing space installed for bottom simultaneously；By arranging cavity on overhead gage, for providing cushion space from air outlet effluent air, it is prevented that gas exit velocity is too fast, electrical equipment causing damage, cavity provides the installing space of abundance for the electrical equipment installed on top cover simultaneously；Brace rod is radially arranged, with gas flow direction in the same direction, it is simple to the discharge of gas；Brace rod is along being uniformly distributed of periphery angle at equal intervals of groove, and when making gas discharge, the air exhausting structure all directions stress of indoor air environment monitoring equipment balances each other；Arranging reinforcement, effectively raise the intensity of cavity, reinforcement also acts as the effect of gas dispersion simultaneously, is stretched out by reinforcement and the connection corresponding one by one with brace rod, and more convenient scattered gas is discharged along the duct between brace rod；Air outlet is arranged at the bottom of air-out groove, makes the gas distance from air-out gap identical, improves the equilibrium degree of the air exhausting structure all directions stress of indoor air environment monitoring equipment；Being additionally provided with in the bottom of air-out groove and monitor, with indoor air environment, the through hole that the electric panel room of equipment is connected, it is simple to the circuit being connected with electrical equipment on bottom passes through, the radiating efficiency of electric panel room as the louvre of electric panel room, can also be improved in this hole simultaneously；The sidewall of air-out groove is the inclined-plane from up to down narrowed gradually, and gas is discharged by this inclined-plane has guide effect, identical with the direction that gas is discharged, and reduces the resistance suffered by gas of air outlet, improves gas expulsion efficiency；Overhead gage and top cover are detachably installed, it is simple to the maintenance of the electrical equipment installed on top cover.
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Accompanying drawing explanation
Accompanying drawing, as the part of the application, is used for providing further understanding of the invention, and the schematic description and description of the present invention is used for explaining the present invention, but does not constitute inappropriate limitation of the present invention.Obviously, the accompanying drawing in the following describes is only some embodiments, to those skilled in the art, under the premise 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 air exhausting structure schematic diagram of the present invention；
Fig. 2 is the embodiment of the present invention one structural representation；
Fig. 3 is the embodiment of the present invention two structural representation；
Fig. 4 is the embodiment of the present invention three structural representation；
Fig. 5 is the embodiment of the present invention four, five structural representation；
Fig. 6 is airflow direction schematic diagram of the present invention.
In figure: 200, housing 201, interior flanging 301, detection air channel 302, air outlet 303, air-out groove 304, top cover 305, air-out gap 306, overhead gage 307, brace rod 308, cavity 309, reinforcement 310, through hole
It should be noted that these accompanying drawings and word describe the concept being not intended as being intended to limit the present invention in any manner, but by idea of the invention being described with reference to specific embodiment for those skilled in the art.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in embodiment is clearly and completely described, and following example are used for illustrating the present invention, but are not limited to the scope of the present invention.
As it is shown in figure 1, in the present embodiment, the air exhausting structure of a kind of indoor air environment monitoring equipment, the inside of indoor air environment monitoring equipment is provided with detection air channel 301, and air outlet 302 place in air channel is provided with air exhausting structure；Housing 200 top of indoor air environment monitoring equipment is provided with the air-out groove 303 being connected with air outlet, and air-out groove 303 upper end open place is provided with top cover 304, top cover 304 and between bottom air-out groove 303 in a distance；At a distance of certain interval to constitute air-out gap 305 between periphery and the sidewall of air-out groove 303 of top cover 304.
By arranging air-out groove 303; and top cover 304 is installed at air-out groove 303 upper end open place, air outlet 302 is buried in top cover 304 times by this air exhausting structure cleverly, it is to avoid the instillation of top foreign body; the effective effect that internal electric elements serve protection, makes wind outlet more attractive in appearance simultaneously.
Embodiment one:
As shown in Figure 1-2, in the present embodiment, the housing 200 of indoor air environment monitoring equipment is the tubular structure of both ends open, the upper shed of housing 200 is provided with interior flanging 201, air-out groove 303 is made up of interior flanging 201 and the overhead gage 306 for installing air outlet 302, overhead gage 306 is formed bottom the air-out groove 303 sealed with interior flanging 201 overlap joint, top cover 304 is fixedly installed brace rod 307, top cover 304 is placed on overhead gage 306 through brace rod 307, make between bottom top cover 304 and air-out groove 303 in a distance, overhead gage 306 is for being removably mounted to detection air channel, air-out groove 303 is directly formed on the top making housing；Top cover and overhead gage are connected by screw.
Wherein overhead gage can also be integrated part with housing, it is also possible to for the discrete item independent of housing and detection air channel.
By arranging interior flanging 201 on housing, interior flanging 201 and the overhead gage for installing air outlet 302 constitute air-out groove 303, overhead gage 306 forms the bottom of the air-out groove 303 sealed with interior flanging 201 overlap joint, this structure makes overhead gage 306 and housing 200 realize removably connecting, it is easy to the maintenance of housing 200 electric elements inside, also allow for the cleaning of housing 200 simultaneously, top cover 304 is fixedly installed brace rod 307, for making between bottom top cover 304 and air-out groove 303 in a distance, gas is made to discharge.
Embodiment two:
As shown in Figure 1, Figure 3, in the present embodiment, the housing 200 of indoor air environment monitoring equipment is the tubular structure of both ends open, the upper shed of housing 200 is provided with interior flanging 201, air-out groove 303 is made up of interior flanging 201 and the overhead gage 306 for installing air outlet 302, and overhead gage 306 is formed bottom the air-out groove 303 sealed with interior flanging 201 overlap joint, and overhead gage 306 is slab construction, overhead gage 306, for being removably mounted to detection air channel, makes the top of housing directly form air-out groove 303；Overhead gage 306 is fixedly installed brace rod 307, and top cover 304 is placed on overhead gage through brace rod 307, makes between bottom top cover 304 and air-out groove 303 in a distance, and top cover and overhead gage are connected by screw.
Wherein overhead gage can also be integrated part with housing, it is also possible to for the discrete item independent of housing and detection air channel.
Embodiment three:
As Figure 1 and Figure 4, it is distinctive in that with embodiment two, overhead gage 306 is the upper plate of the framework for installing detection air channel 301, concave downward in the middle part of overhead gage 306, form cavity 308, a plurality of brace rod 307 is arranged on the edge of cavity 308, and each brace rod 307 is disposed radially respectively, and along being uniformly distributed of periphery angle at equal intervals of cavity 308.
Wherein, brace rod 307 can also be arranged by non-static fields, it is also possible to along the non-uniform Distribution of the periphery angle at equal intervals of cavity 308.
On the one hand, on cover electrical equipment be set, by arranging cavity 308, the space that offer abundance is provided for electrical equipment, compared with being slab construction with overhead gage 306 on the other hand, cavity 308 adds the space of air outlet 302 position, adds cushion space, it is prevented that gas exit velocity is too fast causes the damage to electric elements；Each brace rod 307 is disposed radially respectively, gas is made to flow out after discharging from air outlet 302 more smooth and easy, it is easy to gas discharge, brace rod 307 is along being uniformly distributed of periphery angle at equal intervals of air-out groove 303, make the air exhausting structure all directions stress balance of indoor air environment monitoring equipment, simultaneously more attractive in appearance.
Embodiment four:
As shown in Figure 1, shown in Figure 5, it is distinctive in that with embodiment three, reinforcement 309 it is provided with in cavity 308, reinforcement 309 stretches out and the connection corresponding one by one with brace rod 307, top cover 304 and the opening of air-out groove 303 are concentric not isometrical setting, make formation air-out gap 305 between top cover 304 and air-out groove 303, and the air-out gap 305 that between top cover 304 periphery and air-out groove 303, gap is constituted is divided into separate multistage through each brace rod 307.
By arranging reinforcement, effectively raising the intensity of cavity, reinforcement also acts as the effect of gas dispersion simultaneously, is stretched out by reinforcement and the connection corresponding one by one with brace rod, and more convenient scattered gas is discharged along the passage between brace rod.
Embodiment five:
As shown in Figure 1, shown in Figure 5, it is distinctive in that with embodiment four, air outlet 302 is arranged on the bottom centre position of air-out groove 303, the bottom of air-out groove 303 is additionally provided with monitors, with indoor air environment, the through hole that the electric panel room of equipment is connected, the sidewall of air-out groove 303 is the inclined-plane from up to down narrowed gradually, and overhead gage 306 and top cover 304 are connected by screw.
Wherein, sidewall can also be vertical plane or the bottom-up inclined-plane narrowed gradually, but the inclined-plane preferably from up to down narrowed gradually, and its airflow direction is according to direction as shown in Figure 6, and this structure makes gas flow more smooth；Air outlet can also be arranged on the bottom non-central location of air-out groove, but preferred center position, and this design makes gas equal to the distance of gap position, makes the air exhausting structure stress of indoor air environment monitoring equipment more balance；Through hole passes through for the circuit above covering the electrical equipment of installation, is also beneficial to heat radiation simultaneously, and overhead gage may be used without grafting with top cover, snap fit is connected.
The above is only presently preferred embodiments of the present invention, not the present invention is done any pro forma restriction, although the present invention is disclosed above with preferred embodiment, but it is not limited to the present invention, any technical staff being familiar with this patent is without departing within the scope of technical solution of the present invention, 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 solution of the present invention, according to any simple modification that above example is made by the technical spirit of the present invention, equivalent variations and modification, all still fall within the scope of the present invention program.
Claims (10)
1. an air exhausting structure for indoor air environment monitoring equipment, indoor air environment monitoring device interior is provided with detection air channel, and the air outlet place in detection air channel is provided with air exhausting structure；It is characterized in that: the case top of indoor air environment monitoring equipment is provided with the air-out groove being connected with air outlet, and air-out groove upper end open place is provided with top cover, between top cover and bottom portion of groove in a distance；At a distance of certain interval to constitute air-out gap between periphery and the sidewall of air-out groove of top cover.
2. the air exhausting structure of a kind of indoor air environment according to claim 1 monitoring equipment, it is characterized in that: the upper shed of described housing is provided with interior flanging, described air-out groove is made up of with detection air channel overhead gage interior flanging, described overhead gage forms, with infolding edge lap, the bottom portion of groove sealed, and described overhead gage is provided with and detects the air outlet that air channel is connected；
Preferably, described overhead gage and housing are integrated part, make the top of housing directly form air-out groove；
It is further preferred that described overhead gage is removably mounted to detection air channel.
3. the air exhausting structure of a kind of indoor air environment according to claim 2 monitoring equipment, it is characterized in that: also include brace rod, described brace rod is arranged at overhead gage upper surface or top cover lower surface, top cover is placed on overhead gage through brace rod, makes between top cover and bottom portion of groove in a distance.
4. the air exhausting structure of a kind of indoor air environment according to claim 3 monitoring equipment, it is characterised in that: described overhead gage concave downward, form cavity, a plurality of brace rod is arranged on the edge of cavity；Each brace rod is disposed radially respectively, and along being uniformly distributed of periphery angle at equal intervals of cavity.
5. the air exhausting structure of a kind of indoor air environment according to claim 4 monitoring equipment, it is characterised in that: being provided with reinforcement in described cavity, described reinforcement stretches out and the connection corresponding one by one with brace rod.
6. the air exhausting structure of a kind of indoor air environment according to claim 5 monitoring equipment, it is characterized in that: the opening of described top cover and air-out groove is concentric not isometrical setting, and between top cover periphery and air-out groove, the air-out gap of gap composition is divided into separate multistage through each brace rod.
7. the air exhausting structure according to the arbitrary described a kind of indoor air environment monitoring equipment of claim 1-6, it is characterised in that: described air outlet is arranged on the bottom centre position of air-out groove.
8. the air exhausting structure of a kind of indoor air environment according to claim 7 monitoring equipment, it is characterised in that: the bottom of described air-out groove is additionally provided with monitors, with indoor air environment, the through hole that the electric panel room of equipment is connected.
9. the air exhausting structure of a kind of indoor air environment according to claim 8 monitoring equipment, it is characterised in that: the sidewall of described air-out groove is the inclined-plane from up to down narrowed gradually.
10. the air exhausting structure according to the arbitrary described a kind of indoor air environment monitoring equipment of claim 2-9, it is characterised in that: described overhead gage and top cover are connected by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610299352.0A CN105807010B (en) | 2016-05-06 | 2016-05-06 | A kind of air exhausting structure of indoor air environment monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610299352.0A CN105807010B (en) | 2016-05-06 | 2016-05-06 | A kind of air exhausting structure of indoor air environment monitoring device |
Publications (2)
| Publication Number | Publication Date |
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| CN105807010A true CN105807010A (en) | 2016-07-27 |
| CN105807010B CN105807010B (en) | 2018-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610299352.0A Expired - Fee Related CN105807010B (en) | 2016-05-06 | 2016-05-06 | A kind of air exhausting structure of indoor air environment monitoring device |
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| CN104984374A (en) * | 2015-07-20 | 2015-10-21 | 倪向东 | Drying sterilizer |
| CN105180377A (en) * | 2015-10-15 | 2015-12-23 | 深圳市百欧森环保科技开发有限公司 | Air cleaner and sensor air guide mechanism thereof |
| CN205656184U (en) * | 2016-05-06 | 2016-10-19 | 中科同德（北京）生态科技有限公司 | Indoor air circumstance monitoring facilities's air -out structure |
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2016
- 2016-05-06 CN CN201610299352.0A patent/CN105807010B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2386225Y (en) * | 1999-07-12 | 2000-07-05 | 黄诣壬 | Driving louver natural ventilator |
| CN2419529Y (en) * | 2000-04-05 | 2001-02-14 | 李志荣 | Protecting cover for outdoor unit of air conditioner |
| CN101881476A (en) * | 2010-06-22 | 2010-11-10 | 宁波方太厨具有限公司 | Air outlet device used for range hood |
| CN202851903U (en) * | 2012-11-05 | 2013-04-03 | 重庆茂捷汽车零部件有限公司 | Exhaust plug for speed changer |
| CN103852563A (en) * | 2014-03-14 | 2014-06-11 | 北京超感时空科技有限公司 | Indoor environment monitoring device |
| CN104197427A (en) * | 2014-09-19 | 2014-12-10 | 珠海格力电器股份有限公司 | Air purifier and air duct structure thereof |
| CN104329443A (en) * | 2014-11-18 | 2015-02-04 | 四川邮科通信技术有限公司 | Venting plug of automobile transmission |
| CN104984374A (en) * | 2015-07-20 | 2015-10-21 | 倪向东 | Drying sterilizer |
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| CN105807010B (en) | 2018-11-09 |
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Denomination of invention: Air outlet structure of indoor air environment monitoring equipment Effective date of registration: 20200413 Granted publication date: 20181109 Pledgee: Beijing Intellectual Property Management Co.,Ltd. Pledgor: ZHONGKE TONGDE (BEIJING) ECOLOGICAL TECHNOLOGY Co.,Ltd. Registration number: Y2020990000312 |
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