CN215768126U - Portable bioaerosol detection device - Google Patents
Portable bioaerosol detection device Download PDFInfo
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- CN215768126U CN215768126U CN202121938214.5U CN202121938214U CN215768126U CN 215768126 U CN215768126 U CN 215768126U CN 202121938214 U CN202121938214 U CN 202121938214U CN 215768126 U CN215768126 U CN 215768126U
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Abstract
The utility model relates to a portable biological aerosol detection device, which comprises a shell, a detection module, a data processor and a power supply, wherein the detection module, the data processor and the power supply are arranged in the shell, the detection module comprises a biological particle detection device and a gas filter, the shell is provided with a gas inlet communicated with a gas inlet of the biological particle detection device, a gas inlet of the gas filter is communicated with a discharge port of the biological particle detection device, the shell is provided with a tail gas discharge port communicated with a gas outlet of the gas filter, the power supply is respectively and electrically connected with the data processor and the biological particle detection device, the biological particle detection device is electrically connected with the data processor, and the shell is provided with a self-cleaning mechanism for cleaning a gas circuit in the biological particle detection device. The advantages are that: structural design is reasonable, conveniently carries the use, need not the networking and can handle and feedback data to, possess the self-purification function, detectivity obtains guaranteeing.
Description
Technical Field
The utility model relates to a bioaerosol detection technology, in particular to a portable bioaerosol detection device.
Background
At present, in the existing bioaerosol detection technology, when the concentration of bioaerosol in ambient air is abnormally increased, an alarm signal is sent out when dangerous biological particles are found. And detecting the environmental quality in real time and prompting the potential danger of the user. Is characterized in that the ultraviolet laser induced biological particle intrinsic fluorescence detection technology is adopted, and the ultraviolet laser induced biological particle intrinsic fluorescence detection technology can directly act on biological aerosol particles in the air.
The existing equipment has the following defects: the equipment can only be operated and distinguished by the operator, the feedback time is long, and the rescue action efficiency is reduced; the device only acquires data without calculation capability, the acquired data needs to be sent to the host computer through the network, and the host computer performs corresponding calculation to obtain a result and feeds the result back to the user; the equipment needs the support of a network, the network basically cannot work, and the use environment is harsh; the equipment has certain feedback time and needs to keep a good working state on the aspect of the host; the device has no self-cleaning capability, and after the device is used for a period of time, the sensitivity is sharply reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a portable bioaerosol detection device, which effectively overcomes the defects of the prior art.
The technical scheme for solving the technical problems is as follows:
a portable biological aerosol detection device comprises a shell, a detection module, a data processor and a power supply, wherein the detection module is arranged in the shell and comprises a biological particle detection device and a gas filter, the shell is provided with a gas inlet communicated with a gas inlet of the biological particle detection device, a gas inlet of the gas filter is communicated with a discharge outlet of the biological particle detection device, the shell is provided with a tail gas discharge outlet communicated with a gas outlet of the gas filter, the power supply is electrically connected with the data processor and the biological particle detection device respectively, the biological particle detection device is electrically connected with the data processor, and the shell is provided with a self-cleaning mechanism for cleaning a gas circuit inside the biological particle detection device.
On the basis of the technical scheme, the utility model can be further improved as follows.
Further, the detection module further comprises a first air pump, wherein an air inlet end of the first air pump is communicated with an air outlet of the air filter, and an air outlet end of the first air pump is communicated with the tail gas discharge port.
Further, the gas cutting device is arranged on the shell and communicated with the gas inlet of the shell.
Further, the gas cutter comprises a connecting seat and a cutting structure, the connecting seat is provided with an airflow cavity, an annular groove is formed in one end of the connecting seat, a plurality of gas through holes communicated with the airflow cavity are formed in the bottom of the groove in an annular mode at intervals, a filter screen is covered and installed at the notch of the groove, a gas connector communicated with the airflow cavity is arranged at the other end of the connecting seat, the gas connector is hermetically connected and communicated with the gas inlet of the shell, the cutting structure is an annular component matched with one end of the airflow cavity, the outer edge of the cutting structure is in sealing contact with the inner wall of one end of the airflow cavity, an annular concave area is formed in the position, corresponding to the gas through holes, of the cutting structure, and a rough cutting surface is arranged at the bottom of the concave area.
Furthermore, a protective cover is detachably wrapped outside one end part of the connecting seat, and a gap for air flow to pass through is formed between the inner side of the protective cover and one end part and the side wall of the connecting seat.
Further, the cross-sectional area of the airflow chamber is gradually reduced from one end thereof to the other end thereof.
Further, the biological particle detection device also comprises a chemical sensor, wherein the chemical sensor is arranged at a gas inlet of the biological particle detection device and is connected with an alarm.
Further, the self-cleaning mechanism comprises a cleaning pipeline and an external second air pump, a branch interface is communicated with a gas inlet of the biological particle detection device and is connected and communicated with one end of the cleaning pipeline, a one-way valve for preventing gas from entering the cleaning pipeline is arranged at the communication position of the branch interface and the cleaning pipeline, the other end of the cleaning pipeline is communicated with a cleaning port matched with the shell, and the gas inlet end of the second air pump is detachably connected with a contact port of the shell.
Further, the gas cutting device is arranged on the shell and communicated with the gas inlet of the shell.
Furthermore, a wireless communication module is integrated on the data processor and is in communication connection with an external host.
Further, a handle is arranged at the top of the shell in a turnover way.
The utility model has the beneficial effects that: structural design is reasonable, conveniently carries the use, need not the networking and can handle and feedback data to, possess the self-purification function, detectivity obtains guaranteeing.
Drawings
FIG. 1 is a schematic diagram of the structure of a portable bioaerosol detection device of the present invention;
FIG. 2 is a schematic structural view of the internal components of the housing of the portable bioaerosol testing device of the present invention;
FIG. 3 is a schematic structural view of another perspective of the internal components of the housing of the portable bioaerosol testing device of the present invention;
FIG. 4 is a sectional view showing the structure of a gas cutter in the portable bioaerosol detecting device according to the present invention;
fig. 5 is a structural sectional view taken along the plane B-B in fig. 4.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a housing; 2. a biological particle detection device; 3. a gas filter; 4. a first air pump; 5. cleaning the pipeline; 6. a gas cutter; 11. a handle; 61. a connecting seat; 62. cutting the structure; 63. a gas joint; 64. a protective cover; 611. a groove; 612. a gas passing hole; 613. a filter screen; 621. a recessed region.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model.
Example (b): as shown in fig. 1 to 3, the portable bioaerosol detecting device of the present embodiment comprises a housing 1, and a detecting module, a data processor (a in the figures) and a power supply which are arranged in the housing 1, the detection module comprises a biological particle detection device 2 and a gas filter 3, the shell 1 is provided with a gas inlet communicated with a gas inlet of the biological particle detection device 2, the gas inlet of the gas filter 3 is communicated with the discharge port of the biological particle detecting apparatus 2, the casing 1 is provided with an exhaust gas discharge port communicated with the gas outlet of the gas filter 3, the power supply is electrically connected to the data processor and the biological particle detector 2, respectively, the biological particle detector 2 is electrically connected to the data processor, the shell 1 is provided with a self-cleaning mechanism for cleaning the gas circuit inside the biological particle detection device 2.
Compared with traditional equipment, the bioaerosol detection device integrates a data processor in the whole device, self-calculation processing of data in the detection process can be realized without networking, and then the data is displayed on a display screen of the data processor, in addition, in the use process, self-cleaning (timing or periodic cleaning) can be carried out on the interior of the biological particle detection device 2 according to actual requirements so as to ensure that the biological particle detection device 2 keeps good detection performance, in addition, all core components of the whole device are integrated in one shell 1, corresponding interfaces or plug wire ports and the like are configured on the shell 1, and the whole device is convenient to carry and use.
In this embodiment, the housing 1 may include an upper housing and a lower housing that are assembled by being butted to each other, components other than the power source are placed in the upper housing, the power source is specially placed in the lower housing, and the upper housing and the lower housing may be fastened and locked by using a locking buckle.
In this embodiment, the biological particle detecting device 2 is a conventional product in the existing biological aerosol detecting process, which belongs to the prior art and is not described herein again.
In addition, in this embodiment, the gas filter 3 may be a conventional filter in the prior art, which is not described herein.
In a preferred embodiment, the detection module further includes a first air pump 4, an air inlet end of the first air pump 4 is communicated with the air outlet of the air filter 3, and an air outlet end of the first air pump is communicated with the exhaust gas discharge port.
In this embodiment, the first air pump 4 is arranged, so that in the circulation of external air, i.e., the biological particle detection device 2, i.e., the air filter 3, being discharged outwards, the air can flow at a certain flow rate, and the smooth and effective detection process is ensured.
As a preferred embodiment, as shown in fig. 1 to 3, the gas cutting device further includes a gas cutter 6, and the gas cutter 6 is mounted on the housing 1 and communicates with the gas inlet of the housing 1.
In this embodiment, ambient air enters from the gas cutter 6, and large particle gas is firstly divided into small particles which are easy to be detected by the biological particle detection device 2, so that the influence of large particle substances in the gas on the detection result of the biological particle detection device 2 is reduced, and the detection precision and accuracy are improved.
Specifically, as shown in fig. 4 and 5, the gas cutter 6 includes a connecting base 61 and a cutting structure 62, the connecting base 61 is provided with an airflow cavity, one end of the connecting base 61 is provided with an annular groove 611, a plurality of gas passing holes 612 communicated with the airflow cavity are arranged on the bottom of the groove 611 at intervals, a filter screen 613 is covered and installed at the notch of the groove 611, the other end of the connecting base 61 is provided with a gas connector 63 communicated with the airflow cavity, the gas connector 63 is connected and communicated with the gas inlet of the housing 1 in a sealing manner, the cutting structure 62 is an annular member adapted to one end of the airflow cavity, the outer edge of the annular member is in sealing contact with the inner wall of one end of the airflow cavity, the cutting structure 62 is provided with an annular recessed area 621 corresponding to the gas passing holes 612, and the bottom of the recessed area 621 is provided with a rough cutting surface.
In this scheme, external gas is through large granules such as filter screen 613 interception impurity, then through gaseous clearing hole 612 entering air current chamber, afterwards, high velocity gas flow strikes on the cutting plane of depressed area 621 bottom, cut apart into the tiny particle with the large granule, then, gaseous through-hole entering air current chamber other end through cutting structure 62 inner ring again, finally, it detects in the biological particle detection device 2 of intercommunication to get into through gas connection 63, 6 structural design of whole gas cutter is reasonable, can effectually carry out the segmentation of gaseous large granule, do benefit to subsequent accurate detection, reduce the harmful effects to the testing result.
In the above scheme, the connecting seat 61 is of a combined structure, and comprises a base and a cover plate which is covered on one end of the base, wherein an airflow cavity is arranged on one end of the base, a cavity is arranged at one end, close to the base, of the cover plate, the cavity is in butt joint communication with the airflow cavity, the base and the cover plate are fixedly connected through bolts, a sealing ring is clamped between the base and the cover plate, and the cutting structure 62 is assembled in the cavity at one end of the cover plate and is arranged at an interval with the bottom wall of the cavity.
It should be noted that: the arrows in fig. 4 indicate the gas flow direction.
Preferably, a protective cover 64 is detachably wrapped on an end portion of the connecting base 61, and a gap through which an air flow passes is formed between an inner side of the protective cover 64 and the end portion and the side wall of the connecting base 61.
In this embodiment, the shield 64 is designed to prevent large impurities in the air flow from entering, and to protect the filter screen 613 and the gas passing hole 612.
Generally, the protective cover 64 is a shell structure with an open end, and is reversely buckled outside one end of the connecting base 61, a hollow connecting column is arranged in the middle of the inner side of the shell structure, and a column head detachably connected with the connecting column is arranged at one end of the connecting base 61.
Preferably, the cross-sectional area of the airflow chamber is gradually reduced from one end thereof to the other end thereof.
In this embodiment, the gas flow chamber is preferably a tapered cavity with the tapered tip facing the end of the gas connector 63 to increase the flow rate of the gas to the gas connector 63.
In a preferred embodiment, the biological particle detecting apparatus further comprises a chemical sensor, which is disposed at the gas inlet of the biological particle detecting apparatus 2 and connected to an alarm.
In this embodiment, the chemical sensor is configured to detect dangerous particles entering the biological particle detection apparatus 2 and feed them back to the alarm for real-time alarm.
As a preferred embodiment, the self-cleaning mechanism includes a cleaning pipeline 5 and an external second air pump, a branch port is provided in the gas inlet of the biological particle detecting device 2, the branch port is connected and communicated with one end of the cleaning pipeline 5, a one-way valve for preventing gas from entering the cleaning pipeline 5 is provided in the communication position of the two, the other end of the cleaning pipeline 5 is communicated with a cleaning port adapted to the housing 1, and the air inlet of the second air pump is detachably connected with the cleaning port of the housing 1.
In this embodiment, the design of the self-cleaning mechanism is simple, when cleaning is needed, the whole device is placed in a clean environment, the second air pump is started to send outside air into the biological particle detection device 2 through the cleaning pipeline 5, and the outside air is sequentially discharged through the air filter 3, so that the inside of the biological particle detection device 2 is cleaned by clean air in a similar 'blowing' mode.
Preferably, the data processor is integrated with a wireless communication module, and the wireless communication module is in communication connection with an external host.
Generally, the wireless communication module adopts the 4G communication module in the prior art, keeps the communication with the host, and can synchronously perform supervision, analysis and processing of data on the host when detecting in the environment with the internet.
Preferably, the top of the housing 1 is provided with a handle 11 which can be turned upside down.
The handle 11 is designed to facilitate carrying of the entire device.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A portable bioaerosol detection device, which is characterized in that: comprises a shell (1), a detection module, a data processor and a power supply which are arranged in the shell (1), the detection module comprises a biological particle detection device (2) and a gas filter (3), the shell (1) is provided with an air inlet communicated with the air inlet of the biological particle detection device (2), the gas inlet of the gas filter (3) is communicated with the discharge port of the biological particle detection device (2), the shell (1) is provided with a tail gas discharge port communicated with the gas outlet of the gas filter (3), the power supply is respectively electrically connected with the data processor and the biological particle detection device (2), the biological particle detection device (2) is electrically connected with the data processor, and the shell (1) is provided with a self-cleaning mechanism for cleaning an air path in the biological particle detection device (2).
2. A portable bioaerosol testing device according to claim 1, wherein: the detection module further comprises a first air pump (4), the air inlet end of the first air pump (4) is communicated with the air outlet of the air filter (3), and the air outlet end of the first air pump is communicated with the tail gas discharge port.
3. A portable bioaerosol testing device according to claim 2, wherein: the gas cutting device is characterized by further comprising a gas cutter (6), wherein the gas cutter (6) is installed on the shell (1) and is communicated with a gas inlet of the shell (1).
4. A portable bioaerosol testing device according to claim 3, wherein: the gas cutter (6) comprises a connecting seat (61) and a cutting structure (62), wherein the connecting seat (61) is provided with an airflow cavity, one end of the connecting seat is provided with an annular groove (611), a plurality of gas through holes (612) communicated with the airflow cavity are formed in the groove bottom of the groove (611) in a spaced and annular mode, a filter screen (613) is covered and installed at the notch of the groove (611), the other end of the connecting seat (61) is provided with a gas connector (63) communicated with the airflow cavity, the gas connector (63) is connected and communicated with the gas inlet of the shell (1) in a sealing mode, the cutting structure (62) is an annular component matched with one end of the airflow cavity, the outer edge of the cutting structure is in contact with the inner wall of one end of the airflow cavity in a sealing mode, and an annular concave area (621) is arranged at the position, corresponding to the gas through holes (612), of the cutting structure (62), the bottom of the concave area (621) is provided with a rough cutting surface.
5. A portable bioaerosol testing device according to claim 4, wherein: the outer detachable parcel of one end tip of connecting seat (61) is equipped with protection casing (64), this protection casing (64) inboard with form the clearance that supplies the air current to pass through between one end tip and the lateral wall of connecting seat (61).
6. A portable bioaerosol testing device according to claim 4, wherein: the cross-sectional area of the airflow chamber is gradually reduced from one end to the other end thereof.
7. A portable bioaerosol testing device according to any one of claims 1 to 6, wherein: the biological particle detection device also comprises a chemical sensor, wherein the chemical sensor is arranged at a gas inlet of the biological particle detection device (2) and is connected with an alarm.
8. A portable bioaerosol testing device according to any one of claims 1 to 6, wherein: the self-cleaning mechanism comprises a cleaning pipeline (5) and an external second air pump, a branch interface is communicated with an air inlet of the biological particle detection device (2), the branch interface is connected and communicated with one end of the cleaning pipeline (5), a one-way valve for preventing air from entering the cleaning pipeline (5) is arranged at the communication position of the branch interface and the cleaning pipeline, the other end of the cleaning pipeline (5) is communicated with a cleaning opening matched with the shell (1), and an air inlet end of the second air pump is detachably connected with a request interface of the shell (1).
9. A portable bioaerosol testing device according to any one of claims 1 to 6, wherein: the data processor is integrated with a wireless communication module which is in communication connection with an external host.
10. A portable bioaerosol testing device according to any one of claims 1 to 6, wherein: the top of the shell (1) can be overturned and is provided with a handle (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121938214.5U CN215768126U (en) | 2021-08-18 | 2021-08-18 | Portable bioaerosol detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121938214.5U CN215768126U (en) | 2021-08-18 | 2021-08-18 | Portable bioaerosol detection device |
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| Publication Number | Publication Date |
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| CN215768126U true CN215768126U (en) | 2022-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121938214.5U Active CN215768126U (en) | 2021-08-18 | 2021-08-18 | Portable bioaerosol detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114441717A (en) * | 2022-02-11 | 2022-05-06 | 华北电力大学（保定） | Rapid measurement device and method for bioaerosol |
-
2021
- 2021-08-18 CN CN202121938214.5U patent/CN215768126U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114441717A (en) * | 2022-02-11 | 2022-05-06 | 华北电力大学（保定） | Rapid measurement device and method for bioaerosol |
| CN114441717B (en) * | 2022-02-11 | 2023-04-21 | 华北电力大学（保定） | Device and method for rapidly measuring biological aerosol |
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