CN213266486U - Virus filtering device and air virus collection system based on same - Google Patents
Virus filtering device and air virus collection system based on same Download PDFInfo
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- CN213266486U CN213266486U CN202021944531.3U CN202021944531U CN213266486U CN 213266486 U CN213266486 U CN 213266486U CN 202021944531 U CN202021944531 U CN 202021944531U CN 213266486 U CN213266486 U CN 213266486U
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Abstract
The utility model discloses a virus filtering device and an air virus collecting system based on the same, which comprises an air inlet cavity, a middle filter membrane and an exhaust cavity which are connected in sequence; one end of the air inlet cavity is provided with an air inlet pipe, a groove is formed in the air inlet cavity, and a coarse filter screen is detachably connected in the groove; one end of the exhaust cavity is provided with an exhaust pipe, and the other end of the exhaust cavity is provided with a support net; during the test, middle filter membrane detachably connects on the supporting network, and the intake chamber is kept away from intake pipe side one end and is kept away from exhaust pipe side one end with the exhaust chamber and can dismantle the fastening connection. The device has relatively small volume and is convenient to carry; negative pressure suction is adopted to prevent the filtered air from being discharged; the virus filtering film is used for adsorbing virus, so that virus particles in the air can be enriched. Convenient to disassemble and convenient for subsequent nucleic acid detection.
Description
Technical Field
The utility model belongs to the technical field of medical equipment, a virus filter equipment and air virus collection system based on it is related to.
Background
The respiratory tract infection diseases such as COVID-19, SARS, influenza, measles, chicken pox, rubella, epidemic encephalitis, mumps, etc. are transmitted by air droplets or aerosol, and are one of the transmission ways of causing the infection of people. The detection of the abundance of the viruses in the air in hospitals or places with dense crowds provides a support basis for outbreak prevention and control of related diseases, so that related equipment for detecting the abundance of the viruses in the air is urgently needed. But no relevant air virus collection equipment exists in the market at present. Notice No. CN210215364U discloses a courtyard area air bacterium concentration detection collection system and Notice No. CN108239599A discloses an air bacterium sampling, cultivation and detection integrated device. The two devices are used for collecting bacteria in the air, and do not relate to collecting viruses in the air, and because the diameter of the bacteria is about 0.5-5 mu m and the diameter of the viruses is about 100nm, the two devices cannot collect the viruses.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide a virus filtering device and an air virus collecting system based on the same.
In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:
the utility model discloses a virus filtering device, which comprises an air inlet cavity, a middle filter membrane and an exhaust cavity which are connected in sequence; one end of the air inlet cavity is provided with an air inlet pipe, a groove is formed in the air inlet cavity, and a coarse filter screen is detachably connected in the groove; one end of the exhaust cavity is provided with an exhaust pipe, and the other end of the exhaust cavity is provided with a support net;
during the test, middle filter membrane detachably connects on the supporting network, and the intake chamber is kept away from intake pipe side one end and is kept away from exhaust pipe side one end with the exhaust chamber and can dismantle the fastening connection.
Preferably, a sealing gasket is arranged between the air inlet cavity and the intermediate filter membrane.
Preferably, the intermediate filter membrane is a filter membrane with a pore size of 20 nm.
Preferably, one end of the air inlet cavity, which is far away from the air inlet pipe, is in threaded connection with one end of the air exhaust cavity, which is far away from the air exhaust pipe.
Preferably, the end of the air inlet cavity far away from the air inlet pipe is connected with the end of the air exhaust cavity far away from the air exhaust pipe in a clamping manner.
Preferably, the air inlet cavity and the air exhaust cavity are both cylindrical cavities.
Preferably, the tank is a circular tank and the intermediate filter membrane is a circular filter membrane.
The utility model also discloses an air virus collecting system based on the virus filtering device, which comprises an air collecting end, a breath end of a person to be tested, a negative pressure vacuum pump and the virus filtering device;
the air collecting end comprises an air collecting port and an air collecting pipe, the exhalation end of the person to be tested comprises an exhalation port and the exhalation collecting pipe of the person to be tested, the air collecting pipe and the exhalation collecting pipe of the person to be tested are connected with the air inlet pipe through a three-way pipe, and the exhalation collecting pipe of the person to be tested is also provided with a switch valve;
the exhaust pipe is connected with the negative pressure vacuum pump.
Compared with the prior art, the utility model discloses following beneficial effect has:
this air collection system's advantage lies in: (1) the volume is relatively small, and the carrying is convenient; (2) negative pressure suction is adopted to prevent the filtered air from being discharged; (3) the virus is adsorbed by adopting an intermediate filter membrane capable of filtering the virus, so that virus particles in the air can be enriched; (4) convenient to disassemble and convenient for subsequent nucleic acid detection.
Drawings
FIG. 1 is an exploded view of the virus filter device of the present invention;
FIG. 2 is a sectional view of the virus filter of the present invention;
fig. 3 is the overall structure diagram of the air virus collection system of the present invention.
Wherein: 1-an air inlet cavity; 2-a sealing gasket; 3-intermediate filter membrane; 4-supporting a net; 5-an exhaust cavity; 6-coarse strainer; 7-groove.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
It is noted that the terms "comprises" and "comprising," and any variations thereof, in the description and in the claims, 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 present invention will be described in further detail with reference to the accompanying drawings:
referring to fig. 1, the virus filtering device of the present invention comprises an air inlet chamber 1, a middle filter membrane 3 and an exhaust chamber 5 which are connected in sequence from left to right; an air inlet pipe is arranged at one end of the air inlet cavity 1, a groove 7 is formed in the air inlet cavity 1, and a coarse filter screen 6 is detachably connected in the groove 7; one end of the exhaust cavity 5 is provided with an exhaust pipe, and the other end is provided with a support net 4; during the test, middle filter membrane 3 detachably connects on support network 4, and intake chamber 1 is kept away from intake pipe side one end and exhaust chamber 5 and is kept away from exhaust pipe side one end and can dismantle the fastening connection.
Referring to fig. 2, the middle filter membrane 3 is fixed on the support net 4, is in a circular ring shape, is placed on the support net on one side of the air inlet cavity on one side of the filter device and then is pushed into the support net on one side of the air exhaust cavity (inlet of the air exhaust cavity), is tightly connected with the air exhaust cavity 5 on the right side of the filter device through a threaded opening, and after the collection is finished, the filter device is screwed, the middle filter membrane 3 is detached, and subsequent detection is carried out.
Preferably, a sealing gasket 2 is also arranged between the air inlet cavity 1 and the intermediate filter membrane 3.
Preferably, the filter membrane with the pore diameter of 20nm is adopted as the middle filter membrane 3, and the middle filter membrane 3 is the core part of the device and can effectively enrich viruses.
Preferably, the end of the air inlet cavity 1 far away from the air inlet pipe side is in threaded connection or buckled connection with the end of the exhaust cavity 5 far away from the exhaust pipe side, so that the disassembly is convenient, and the middle filter membrane 3 is convenient to move out.
Referring to fig. 3, the air virus collecting system based on the virus filtering device disclosed by the utility model comprises an air collecting end, a breath end of a person to be tested, a negative pressure vacuum pump and the virus filtering device; the air collecting end comprises an air collecting port and an air collecting pipe, the exhalation end of the person to be tested comprises an exhalation port and the exhalation collecting pipe of the person to be tested, the air collecting pipe and the exhalation collecting pipe of the person to be tested are connected with the air inlet pipe through a three-way pipe, and the exhalation collecting pipe of the person to be tested is also provided with a switch valve; the exhaust pipe is connected with the negative pressure vacuum pump.
The principle of the utility model is to apply the negative pressure suck-back principle and combine the middle filter membrane with the aperture of 20 nm. In the process of air negative pressure suck-back, virus particles are adsorbed on the middle filter membrane, the middle filter membrane is taken down, and then the virus adsorbed on the middle filter membrane can be detected, so that the abundance of the virus in the detection environment/air can be judged, the spreading hazard can be predicted, and the prevention and control are well performed.
Specifically, the utility model discloses an air virus collection system is when using:
two ends of the three-way pipe are respectively and directly connected with the air collecting pipe and the breath collecting pipe of the person to be tested, the other end of the three-way pipe is connected with an air inlet pipe in the virus filtering device, and an exhaust pipe of the virus filtering device is connected with the negative pressure vacuum pump.
When virus particles in the air are collected, a switch valve on the breath collecting pipe of the person to be detected is closed, the negative pressure vacuum pump is started, the air is sucked into the air collecting pipe and is sucked into the virus filtering device through the air inlet pipe, the middle filter membrane is fully contacted with the sucked air, after several minutes, the negative pressure vacuum pump stops working, the middle filter membrane is detached, and the nucleic acid detection is carried out.
When detecting the gas exhaled by the person to be detected, the negative pressure vacuum pump does not need to be started, the switch valve on the exhalation collecting pipe of the person to be detected is opened, the person to be detected exhales by aiming at the exhalation port, the gas enters the air inlet pipe through the exhalation collecting pipe of the person to be detected and then enters the virus filtering device, the middle filter membrane is fully contacted with the inhaled air, and after several minutes, the middle filter membrane is detached to perform nucleic acid detection.
The above contents are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical solution according to the technical idea of the present invention all fall within the protection scope of the claims of the present invention.
Claims (8)
1. A virus filtering device is characterized by comprising an air inlet cavity (1), an intermediate filter membrane (3) and an exhaust cavity (5) which are connected in sequence; an air inlet pipe is arranged at one end of the air inlet cavity (1), a groove (7) is formed in the air inlet cavity (1), and a coarse filter screen (6) is detachably connected in the groove (7); one end of the exhaust cavity (5) is provided with an exhaust pipe, and the other end is provided with a support net (4);
during the test, middle filter membrane (3) detachably connects on support network (4), and intake chamber (1) is kept away from intake pipe side one end and exhaust chamber (5) keep away from exhaust pipe side one end and can dismantle the fastening connection.
2. A viral filtration device according to claim 1, wherein a sealing gasket (2) is further provided between the air inlet chamber (1) and the intermediate filter membrane (3).
3. The virus filtration device according to claim 1, wherein the intermediate filter (3) is a filter having a pore size of 20 nm.
4. The virus filtering device according to claim 1, wherein the end of the air inlet cavity (1) far away from the air inlet pipe is in threaded connection with the end of the air outlet cavity (5) far away from the air outlet pipe.
5. The virus filtering device according to claim 1, wherein the end of the air inlet cavity (1) far away from the air inlet pipe is connected with the end of the air outlet cavity (5) far away from the air outlet pipe in a snap-in manner.
6. The virus filtering device according to claim 1, wherein the air inlet chamber (1) and the air outlet chamber (5) are cylindrical chambers.
7. The virus filtration device according to claim 1, wherein the groove (7) is a circular groove and the intermediate filter (3) is a circular filter.
8. The air virus collecting system based on the virus filtering device of any one of claims 1 to 7, which is characterized by comprising an air collecting end, an expiration end of a person to be tested, a negative pressure vacuum pump and the virus filtering device;
the air collecting end comprises an air collecting port and an air collecting pipe, the exhalation end of the person to be tested comprises an exhalation port and the exhalation collecting pipe of the person to be tested, the air collecting pipe and the exhalation collecting pipe of the person to be tested are connected with the air inlet pipe through a three-way pipe, and the exhalation collecting pipe of the person to be tested is also provided with a switch valve; the exhaust pipe is connected with the negative pressure vacuum pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021944531.3U CN213266486U (en) | 2020-09-08 | 2020-09-08 | Virus filtering device and air virus collection system based on same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021944531.3U CN213266486U (en) | 2020-09-08 | 2020-09-08 | Virus filtering device and air virus collection system based on same |
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| CN213266486U true CN213266486U (en) | 2021-05-25 |
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| CN202021944531.3U Active CN213266486U (en) | 2020-09-08 | 2020-09-08 | Virus filtering device and air virus collection system based on same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114045217A (en) * | 2022-01-11 | 2022-02-15 | 至美时代生物智能科技(北京)有限公司 | Air microorganism sampling device and air microorganism sampling and detecting integrated device |
| CN115902088A (en) * | 2023-03-09 | 2023-04-04 | 合肥泷睿机器人有限责任公司 | Device for testing virus killing performance of nano titanium dioxide photocatalytic screen |
-
2020
- 2020-09-08 CN CN202021944531.3U patent/CN213266486U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114045217A (en) * | 2022-01-11 | 2022-02-15 | 至美时代生物智能科技(北京)有限公司 | Air microorganism sampling device and air microorganism sampling and detecting integrated device |
| CN114045217B (en) * | 2022-01-11 | 2022-04-19 | 至美时代生物智能科技(北京)有限公司 | Air microorganism sampling device and air microorganism sampling and detecting integrated device |
| CN115902088A (en) * | 2023-03-09 | 2023-04-04 | 合肥泷睿机器人有限责任公司 | Device for testing virus killing performance of nano titanium dioxide photocatalytic screen |
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