CN215531562U - Smoke collecting type ashtray - Google Patents
Smoke collecting type ashtray Download PDFInfo
- Publication number
- CN215531562U CN215531562U CN202120129869.1U CN202120129869U CN215531562U CN 215531562 U CN215531562 U CN 215531562U CN 202120129869 U CN202120129869 U CN 202120129869U CN 215531562 U CN215531562 U CN 215531562U
- Authority
- CN
- China
- Prior art keywords
- ashtray
- smoke
- cigarette ash
- filtering
- cigarette
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000779 smoke Substances 0.000 title claims abstract description 88
- 235000019504 cigarettes Nutrition 0.000 claims abstract description 86
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 49
- 238000001914 filtration Methods 0.000 claims abstract description 47
- 229920000742 Cotton Polymers 0.000 claims abstract description 26
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 23
- 230000000391 smoking effect Effects 0.000 claims description 19
- 230000000694 effects Effects 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims 3
- 239000000126 substance Substances 0.000 abstract description 7
- 239000007789 gas Substances 0.000 abstract description 5
- 239000002956 ash Substances 0.000 description 45
- 238000009423 ventilation Methods 0.000 description 11
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 239000004071 soot Substances 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 6
- 238000002955 isolation Methods 0.000 description 6
- SNICXCGAKADSCV-JTQLQIEISA-N (-)-Nicotine Chemical compound CN1CCC[C@H]1C1=CC=CN=C1 SNICXCGAKADSCV-JTQLQIEISA-N 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 229960002715 nicotine Drugs 0.000 description 5
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Natural products CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 241000208125 Nicotiana Species 0.000 description 2
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 2
- 238000009298 carbon filtering Methods 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 208000019622 heart disease Diseases 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- FMMWHPNWAFZXNH-UHFFFAOYSA-N Benz[a]pyrene Chemical compound C1=C2C3=CC=CC=C3C=C(C=C3)C2=C2C3=CC=CC2=C1 FMMWHPNWAFZXNH-UHFFFAOYSA-N 0.000 description 1
- 206010006458 Bronchitis chronic Diseases 0.000 description 1
- 206010014561 Emphysema Diseases 0.000 description 1
- 208000000461 Esophageal Neoplasms Diseases 0.000 description 1
- 206010020772 Hypertension Diseases 0.000 description 1
- 206010023825 Laryngeal cancer Diseases 0.000 description 1
- 208000019693 Lung disease Diseases 0.000 description 1
- 206010058467 Lung neoplasm malignant Diseases 0.000 description 1
- 208000003445 Mouth Neoplasms Diseases 0.000 description 1
- 206010030155 Oesophageal carcinoma Diseases 0.000 description 1
- 206010035664 Pneumonia Diseases 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 206010006451 bronchitis Diseases 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 208000007451 chronic bronchitis Diseases 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 201000004101 esophageal cancer Diseases 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 206010023841 laryngeal neoplasm Diseases 0.000 description 1
- 208000012987 lip and oral cavity carcinoma Diseases 0.000 description 1
- 201000005202 lung cancer Diseases 0.000 description 1
- 208000020816 lung neoplasm Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002594 sorbent Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model discloses a smoke collection type ashtray which comprises an ashtray body, wherein a plurality of cigarette ash holes for placing cigarettes are formed in the ashtray body, each cigarette ash hole is provided with a corresponding smoke filtering channel, filtering areas are arranged on two sides of each smoke filtering channel, and filtering devices are arranged on two sides of each filtering area. The smoke collection type ashtray is simple in structure and ingenious in design, smoke is collected through the cigarette ash openings, when cigarette ash enters the ashtray, the cigarette smoke is limited to only flow out of the four fixed cigarette ash openings, and the opening of the air suction fan is opposite to the smoke filtering channel, so that the cigarette smoke is effectively absorbed by the smoke collection type ashtray at the maximum efficiency; meanwhile, the cigarette ash is sucked by the miniature suction fan and is filtered by the first active carbon filter cotton, the active carbon and the second active carbon filter cotton, so that various harmful gases and harmful substances in the cigarette smoke are absorbed and purified, and the health of the living environment of people is kept.
Description
Technical Field
The utility model relates to the technical field of ashtrays, in particular to a smoke collection type ashtray.
Background
Tobacco smoke contains at least three dangerous chemicals: tar, nicotine and carbon monoxide, a person who smokes 15 to 20 cigarettes per day is susceptible to lung cancer, oral cancer, laryngeal cancer, esophageal cancer; the probability of death from heart disease is twice as high as that of normal people, cigarette smoking is the main cause of chronic bronchitis and emphysema, and chronic lung diseases increase the risk of pneumonia and heart disease, and smoking also increases the risk of hypertension.
The current ashtray function singleness that is current to on the market at present is only for holding cigarette ash, and cigarette ash can continuously burn in the ashtray and produce smog and continuously harm the human body, and some ashtrays use poisonous plastics even, produce the condition of toxic gas when cigarette ash burns, and the human body inhales cigarette smog that wafts everywhere and harms the health.
SUMMERY OF THE UTILITY MODEL
It is an object of the present invention to provide a smoke collecting ashtray that solves one or more of the above mentioned prior art problems.
According to one aspect of the utility model, the smoke collection type ashtray comprises an ashtray body, wherein a plurality of cigarette ash holes for placing cigarettes are formed in the ashtray body, each cigarette ash hole is provided with a corresponding smoke filtering channel, two sides of each smoke filtering channel are provided with filtering areas, and two sides of each filtering area are provided with filtering devices.
In some embodiments, the filter device comprises a filter absorption layer in the filter region, the filter absorption layer comprises a first activated carbon filter cotton layer, activated carbon and a second activated carbon filter cotton layer which are arranged in sequence, the first activated carbon filter cotton layer is close to the smoke filter channel, and the activated carbon is arranged between the first activated carbon filter cotton layer and the second activated carbon filter cotton layer.
In some embodiments, the smoke filter further comprises a smoke suction fan, wherein the smoke suction fan is arranged on one side of each filter absorption layer close to the smoke filter channel and used for generating air flow to obtain air suction effect.
In some embodiments, the front and back of the smoking fan are each provided with an ash ventilation screen comprising a first ash ventilation screen disposed between the back of the smoking fan and the filter sorbent layer and a second ash ventilation screen disposed on the side of the smoking fan facing the smoke filtration channel.
In some embodiments, the smoking fan is connected with a power switch, and the power switch is arranged outside the ashtray body of the smoke collection type ashtray.
In some embodiments, the number of the ash holes is 4, and each ash hole is arranged at the center of the upper edge of the ashtray body.
In some embodiments, a ramp plate is further disposed in each smoke filtering channel, and extends from the ash inlet to the bottom of the ashtray body.
In some embodiments, the ashtray body comprises an ashtray body and an ashtray smoke isolation cover matched with the ashtray body, the cigarette ash hole is in a circular hole shape, semi-circles with the same size are arranged on the ashtray body and the ashtray smoke isolation cover, and the ashtray smoke isolation cover covers the ashtray body to form the circular hole shape for placing the cigarette ash hole.
The utility model has the following effects: compared with the prior art, the smoke collection type ashtray provided by the utility model has the advantages that the structure is simple, the design is ingenious, smoke is collected through the smoke port, when cigarette ash enters the ashtray, the cigarette ash can fall down once the quantity of the cigarette ash is increased by adopting the slope plate, the internal temperature is kept by enlarging the internal smoke storage space, so that the cigarette smoke can not float everywhere, the cigarette smoke is limited to only float out from four fixed cigarette ash ports, and the opening of the air suction fan is opposite to the smoke filtering channel, so that the smoke collection type ashtray can absorb the cigarette smoke effectively at the maximum efficiency;
meanwhile, the cigarette ash is sucked by the micro air suction fan, and the cigarette ash is filtered by the first active carbon filter cotton to filter tar, active carbon to adsorb harmful substances such as nicotine, toluene and the like, and then the cigarette smoke is filtered and purified by the second active carbon filter cotton, so that various harmful gases and harmful substances in the cigarette smoke are absorbed and purified, and the health of the living environment of people is kept.
Drawings
FIG. 1 is a schematic view of the internal structure of the smoke collecting ashtray of the present invention;
FIG. 2 is a schematic view of the internal structure of the smoke collecting ashtray of the present invention;
FIG. 3 is a schematic view of the smoke collecting ashtray of the present invention;
FIG. 4 is a schematic top view of the smoke collecting ashtray of the present invention;
FIG. 5 is a schematic view of a portion of the smoke collecting ashtray of the present invention;
FIG. 6 is a schematic view of the smoke collecting ashtray of the present invention;
FIG. 7 is a schematic view of the structure of the smoke collecting ashtray filter layer of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances in order to facilitate the description of the embodiments of the utility model herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
The utility model takes the upper, lower, front, rear, left and right in figure 1 as the upper, lower, front, rear, left and right in the utility model, wherein, the X-axis direction is the left-right direction in figure 1, the Y-axis direction is the up-down direction in figure 1, and the Z-axis direction is the front-back direction in figure 1.
The present invention will be described in further detail with reference to the following description of the drawings.
Example 1
As shown in fig. 1-7, a smoke collecting type ashtray is provided, which comprises an ashtray body 6, wherein a plurality of cigarette ash openings 1 for placing cigarettes are arranged on the ashtray body 6, each cigarette ash opening 1 is provided with a corresponding smoke filtering channel 2, two sides of each smoke filtering channel 2 are provided with filtering areas 3, and two sides of each filtering area 3 are provided with filtering devices.
Filter equipment filters the cotton layer 33 including the first active carbon filter cotton 31, active carbon 32, the second active carbon that set gradually including setting up the filtration absorbed layer in the filter area, and first active carbon filters cotton layer 31 and is close to smog and filters passageway 2, and active carbon 32 sets up and filters between cotton layer 33 at first active carbon filter cotton layer 31 and second active carbon. The activated carbon filter cotton is high-quality powdery activated carbon which is used as an adsorption material and can effectively adsorb smoke particles generated by tobacco in the cigarette, and the activated carbon can adsorb a large amount of harmful gas and filter harmful components such as carbon monoxide, carbon dioxide, nitric oxide, volatile low molecular alkane, olefin and the like in the cigarette. The filtering and absorbing layer absorbs and purifies the smoke by a triple filtering method of filtering by the first active carbon filtering cotton layer 31, absorbing by the active carbon 32 and filtering again by the second active carbon filtering cotton layer 33, and absorbs and purifies the nicotine, tar, benzopyrene, heavy metals and various harmful gases in the cigarette, thereby achieving the effect of purifying and absorbing.
The ashtray body 6 further comprises an air suction area 4 for placing a smoking fan, the air suction area 4 is arranged on one side, facing the smoke filtering channel 2, of each filtering and absorbing layer, and the smoking fan 41 is placed in the air suction area 4 and used for generating air flow to obtain air suction effect. The smoking fan can adopt a miniature vortex fan, one side of the air suction fan blade compresses air, the back surface of the air suction fan blade reduces the air density, the original balance needs to be restored by supplementing air, the blade generates air flow, and the air suction effect is obtained.
The front and back sides of the smoking fan 41 are provided with soot ventilation screens 5, the soot ventilation screens 5 include a first soot ventilation screen 51 and a second soot ventilation screen 52, the first soot ventilation screen 51 is disposed between the back side of the smoking fan 41 and the filter absorption layer, and the second soot ventilation screen 52 is disposed at the side of the smoking fan 41 facing the smoke filter channel 2. The cigarette ash ventilating filter screen is added at the front part and the rear part of the fan to keep the space for air flowing and to block the cigarette ash in the filtering channel of the ashtray and ensure the normal operation of the fan.
The smoking fan 41 is connected with a power switch 42, and the power switch 42 is arranged outside the ashtray body. Therefore, the power supply can be turned off when the power supply is not needed to be used, so that the power is saved.
As shown in figures 1-4, the number of the ash holes 1 is 4, and each ash hole 1 is arranged at the center of the upper edge of the ashtray body. Therefore, the filtering area can also be provided with the filtering devices and the like symmetrically by taking the center of the ashtray body as an axisymmetrical point. Therefore, with such a configuration, the effect of smoke absorption is relatively uniform.
Each smoke filtering channel 2 is also internally provided with a slope plate 21, and the slope plate 21 extends from the inlet of the cigarette ash port 1 to the bottom of the ashtray body 6. In the embodiment, the area in the middle of the ashtray body is an area for placing cigarette ash, and the cigarette ash has enough space. Therefore, the smoke filtering channel adopts the slope plate, or the smoke filtering channel directly adopts a slope type, so that the cigarette ash can quickly fall to the cigarette ash area, and the heat is well controlled at the central part of the ashtray so that the smoke cannot drift everywhere.
The ashtray body 6 comprises an ashtray cylinder body 61 and an ashtray smoke isolation cover 62 matched with the ashtray cylinder body 61, the cigarette ash hole 1 is in a circular hole shape, semi-circles with the same size are arranged on the ashtray cylinder body 61 and the ashtray smoke isolation cover 62, and the ashtray smoke isolation cover 62 covers the cylinder body to form a circular hole shape for placing the cigarette ash hole. Therefore, the soot and the smoke can be well aggregated and uniformly treated.
As shown in the figure, the air suction areas 4 on the adjacent sides of the ashtray body 61 are connected, the second cigarette ash ventilating filter screens 52 on the adjacent sides are connected through the second connecting plates 53, and at the moment, the two adjacent sides of the ashtray body, the second connecting plates 53 and the second cigarette ash ventilating filter screens 52 form filtering areas. The first and second fly ash ventilation screens 51 and 52 are connected by a first connection plate 54, whereby the first and second fly ash ventilation screens 51 and 52, the first connection plate 54 and the side of the cylinder body form a suction area 4. From this, adopt the structure of design, when cigarette ash got into the ashtray, make when cigarette ash gets into through adopting the ramp plate, in case the cigarette ash volume becomes more and then can fall down, keep inside temperature through increaseing inside cigarette storage space and make cigarette smog can not fly away everywhere and because the passageway limits cigarette smog can only follow four fixed cigarette ash mouths and fly away, just to the opening of induced draft fan with cigarette smog effective absorption with passageway maximum efficiency.
In this embodiment, the first cigarette ash ventilating filter screen 51 and the second cigarette ash ventilating filter screen 52 are connected with the ashtray cylinder 61 and the first connecting plate 54 in an inserting manner, specifically, two side surfaces of the first cigarette ash ventilating filter screen 51 and the second cigarette ash ventilating filter screen 52 are both fixedly provided with a vertical column 55 in the vertical direction, and the ashtray cylinder 61 and the first connecting plate 51 are both provided with groove bodies of the vertical column 55 in a matching manner. From this, the filter facilitates the washing installation and uses.
When the cigarette smoke purifier is used, the suction fan is turned on through the power switch, cigarette smoke is absorbed through the suction fan, tar is filtered through the first active carbon filter cotton, harmful substances such as nicotine and toluene are adsorbed through the active carbon, and then the cigarette smoke is filtered and purified through the second active carbon filter cotton.
The utility model has the advantages that:
1. when cigarette ash falls into the ashtray, the cigarette ash is effectively gathered and blocked through the heat gathering sealing structure, the problem that the cigarette smoke scatters everywhere is solved, and a user and people nearby the user are prevented from injuring the body because the cigarette smoke scatters everywhere and second-hand smoke is inhaled;
2. the switch of the miniature air suction fan is controlled by the power switch, when the power is turned on, the cigarette ash is sucked by the miniature air suction fan, the first activated carbon filter cotton filters tar, the activated carbon absorbs harmful substances such as nicotine and toluene, and then the second activated carbon filter cotton filters and purifies the cigarette smoke, so that various harmful gases and harmful substances in the cigarette smoke are absorbed and purified, and the health of the living environment of people is kept.
Therefore, the ashtray body 61 and the smoke isolating cover 62 are adopted, cigarette smoke is effectively filtered on the basis of gathering through the adsorption and filtration layer, smoke generated by continuous burning of cigarette smoke is prevented from being inhaled by a user and people around the user, and various hazards caused by the fact that people inhale second-hand smoke are avoided.
The above is only one embodiment of the present invention, and it should be noted that, for those skilled in the art, many similar changes and modifications can be made without departing from the inventive concept of the present invention, and these should be considered as within the protection scope of the present invention.
Claims (7)
1. Smoke collection type ashtray, which is characterized in that: the cigarette ash tray comprises an ashtray body (6), wherein a plurality of cigarette ash holes (1) for placing cigarettes are formed in the ashtray body (6), each cigarette ash hole (1) is provided with a corresponding smoke filtering channel (2), two sides of each smoke filtering channel (2) are provided with filtering areas (3), and two sides of each filtering area (3) are provided with filtering devices; the filter equipment is including setting up the filtration absorbed layer in the filtering area, the filtration absorbed layer is including the cotton layer (31) of first active carbon filter (32), the cotton layer (33) of second active carbon filter that set gradually, first active carbon filter cotton layer (31) is close to smog and filters passageway (2), active carbon (32) set up first active carbon filter cotton layer (31) and second active carbon filter between the cotton layer (33).
2. A smoke collecting ashtray according to claim 1, wherein: the ashtray body (6) further comprises air suction areas (4) used for placing smoking fans, the air suction areas (4) are arranged on each side, facing the smoke filtering channel (2), of the filtering and absorbing layer, and the smoking fans (41) are placed in the air suction areas (4) and used for generating air flow to obtain air suction effects.
3. A smoke collecting ashtray according to claim 2, wherein: the cigarette ash ventilating device is characterized in that cigarette ash ventilating filter screens (5) are arranged on the front side and the back side of the smoking fan (41), each cigarette ash ventilating filter screen (5) comprises a first cigarette ash ventilating filter screen (51) and a second cigarette ash ventilating filter screen (52), the first cigarette ash ventilating filter screens (51) are arranged between the back side of the smoking fan (41) and the filtering and absorbing layer, and the second cigarette ash ventilating filter screens (52) are arranged on one side, facing the cigarette smoke filtering channel (2), of the smoking fan (41).
4. A smoke collecting ashtray according to claim 2, wherein: the smoking fan (41) is connected with a power switch (42), and the power switch (42) is arranged on the outer side of the ashtray body.
5. A smoke collecting ashtray according to claim 1, wherein: the number of the ash holes (1) is 4, and each ash hole (1) is arranged in the center of the upper edge of the ashtray body.
6. A smoke collecting ashtray according to claim 1, wherein: each smoke filtering channel (2) is also internally provided with a slope plate (21), and the slope plate (21) extends from the inlet of the cigarette ash port (1) to the bottom of the ashtray body (6).
7. A smoke collecting ashtray according to claim 3, wherein: the ashtray body (6) comprises an ashtray body (61) and an ashtray separation cover (62) matched with the ashtray body (61), the ashtray opening (1) is in a round hole shape, semi-circles with the same size are arranged on the ashtray body (61) and the ashtray separation cover (62), and the ashtray separation cover (62) covers the ashtray body to form a round hole shape for placing the ashtray opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120129869.1U CN215531562U (en) | 2021-01-18 | 2021-01-18 | Smoke collecting type ashtray |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120129869.1U CN215531562U (en) | 2021-01-18 | 2021-01-18 | Smoke collecting type ashtray |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215531562U true CN215531562U (en) | 2022-01-18 |
Family
ID=79837171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120129869.1U Expired - Fee Related CN215531562U (en) | 2021-01-18 | 2021-01-18 | Smoke collecting type ashtray |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215531562U (en) |
-
2021
- 2021-01-18 CN CN202120129869.1U patent/CN215531562U/en not_active Expired - Fee Related
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20220118 |