Air quality detection box

Abstract

The utility model provides a kind of air quality detection box, it can realize the independent detection of a variety of harmful gas simultaneously, improve the real-time and stability of gas detection;Including box, the inner chamber of the box forms detection room, support plate is equipped in the detection room, air filter, gas sensor, flowmeter, gas pump are arranged in sequence on the support plate, the air filter is connected with ambient air by air inlet pipe, the gas sensor is equipped with multiple, and different the gas sensor corresponds to detect different gas, switch power supply, air switch connected by wiring are provided on the support plate, the gas sensor, flowmeter, gas pump, air switch are all connected in controller.

Description

Technical Field

[0001] This utility model relates to the field of air detection technology, specifically to an air quality detection box. Background Technology

[0002] With rapid industrialization and deepening urbanization, air pollution has become increasingly severe, particularly outdoor air pollution around cities and industrial areas, posing a significant challenge to public health, the ecological environment, and regional sustainable development. As the demand for more refined pollution exposure assessments increases, and with the deepening development of environmental regulation, emergency response, scientific research, and personal health protection, real-time, flexible, and multi-parameter air quality monitoring of outdoor environments (including urban streets, industrial park perimeters, transportation hubs, construction sites, wilderness areas, and the interior and vicinity of mobile vehicles) is becoming increasingly important.

[0003] However, traditional air quality detection devices can only detect one type of gas and cannot simultaneously and independently detect multiple harmful gases. They also have low detection accuracy, poor stability, and insufficient real-time performance. Utility Model Content

[0004] To address the aforementioned issues, this invention provides an air quality detection box that can simultaneously and independently detect multiple harmful gases, improving the real-time performance and stability of gas detection.

[0005] This utility model adopts the following technical solution: an air quality detection box, including a box body, the inner cavity of the box body forming a detection chamber, a support plate provided in the detection chamber, an air filter, a gas sensor, a flow meter, and an air pump arranged sequentially on the support plate, the air filter being connected to the outside air through an air inlet pipe, multiple gas sensors being provided, and different gas sensors corresponding to detect different gases, a switching power supply and an air switch being provided on the support plate through wiring, and the gas sensor, flow meter, air pump, and air switch being connected to a controller.

[0006] Furthermore, the support plate is equipped with multiple connecting seats, and the gas sensor can be detachably assembled onto the corresponding connecting seat;

[0007] Furthermore, the connector has an installation port, and both ends of the connector have connection holes that communicate with the installation port. The connection holes at both ends and the installation port form an air cavity. The gas sensor is mounted on the detection circuit board, and the detection end of the gas sensor is inserted into the installation port. The detection circuit board is connected to the controller, and the detection circuit board and the connector are assembled and connected through a connecting post.

[0008] Furthermore, the controller is also connected to a display screen and an alarm. The display screen is used to display the gas composition and concentration, and the alarm is used to sound an alarm when the gas concentration exceeds the standard.

[0009] Furthermore, an air inlet is provided on the housing, and the air filter, connector, flow meter, and air pump are connected by a connecting pipe. The air inlet is connected to the air inlet pipe to inject outside air into the detection chamber.

[0010] Furthermore, the air pump is equipped with a shock-absorbing soft rubber sleeve; the housing is provided with several drainage holes, and the air pump is provided with an air outlet, from which the detection gas is dispersed into the detection chamber;

[0011] Furthermore, a lid is rotatably connected to the housing, and the air filter is fixed to the support plate by a bracket, which is L-shaped.

[0012] The beneficial effects of this utility model are that outside air enters the detection chamber through the air inlet pipe and passes through the air filter, gas sensor, and flow meter in sequence, and is finally dispersed into the detection chamber by the air pump. At this time, multiple gas sensors can transmit the gas data detected by each sensor to the controller to realize the detection of gas composition and concentration. This enables the simultaneous and independent detection of multiple harmful gases. Furthermore, the enclosure ensures that the internal components are not affected by rain and dust, thereby improving the real-time performance and stability of gas detection and making it of good practical value. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the indoor layout structure of the detection room in this utility model;

[0015] Figure 3 This is a three-dimensional structural diagram of the connecting seat in this utility model;

[0016] Figure 4 This is a cross-sectional view of the connecting seat in this utility model. Detailed Implementation

[0017] like Figures 1-4As shown, an air quality testing box of this utility model includes a box body 11, the inner cavity of the box body 11 forming a testing chamber 19, a support plate 1 is provided in the testing chamber 19, and an air filter 3, a gas sensor 5, a flow meter 6, and an air pump 7 are arranged on the support plate 1 in sequence. The air filter 3 is connected to the outside air through an air inlet pipe 2. There are multiple gas sensors 5, and different gas sensors 5 are used to detect different gases. A switching power supply 10 and an air switch 9 are provided on the support plate 1 through a circuit connection. The gas sensor 5, the flow meter 6, the air pump 7, and the air switch 9 are all connected to a controller 17.

[0018] The support plate 1 is equipped with multiple connectors 16, and the gas sensor 5 can be detachably assembled onto the corresponding connector 16. Specifically, the multiple connectors 16 can be connected by connecting pipes 4. Each connector 16 is equipped with a corresponding gas sensor. As a modular connection structure, the connector 16 can be assembled in a modular way, thereby enabling the expansion of various monitoring contents.

[0019] The connector 16 has an installation port 20, and both ends of the connector 16 have connection holes 21 that communicate with the installation port 20. The connection holes 21 and the installation port 20 form an air cavity 22. The gas sensor 5 is mounted on the detection circuit board 23, and the detection end of the gas sensor 5 is inserted into the installation port 20. The detection circuit board 23 is connected to the controller 17. The detection circuit board 23 and the connector 16 are assembled and connected by a connecting post 24. In this embodiment, the connecting post 24 is fixed on the detection circuit board 23, and the connector 16 has positioning holes 25 corresponding to the connecting post 24. The detection circuit board 23 equipped with the gas sensor 5 can be directly connected to the connecting post 24 and the positioning hole 25, and the detection end of the gas sensor 5 can be positioned and inserted into the mounting port 20. This not only facilitates disassembly and installation, but also makes it easier for the gas sensor 5 to detect the gas in the gas chamber 22. Specifically, the connecting holes 21 at both ends are connected to connecting pipes 4, so that ambient air enters the gas chamber 22 through the connecting pipes 4 and connecting holes 21. The gas sensor 5 can directly detect the ambient air gas in the gas chamber 22 and transmit the gas detection data to the controller 17 through the corresponding detection circuit board.

[0020] The controller 17 is also connected to the display screen 8 and the alarm (not shown in the figure). The display screen 8 is used to display the gas composition and concentration, and the alarm is used to sound an alarm when the gas concentration exceeds the standard.

[0021] An air inlet 12 is provided on the housing 11. The air filter 3, connector 16, flow meter 6, and air pump 7 are connected by a connecting pipe 4. The air inlet 12 is connected to the air inlet pipe 2 to inject outside air into the detection chamber.

[0022] The air pump 7 is equipped with a shockproof soft rubber sleeve 13; the housing 11 has several drainage holes 14, and the air pump 7 has an air outlet 18. The detection gas is dispersed from the air outlet 18 of the air pump 7 into the detection chamber 19 and discharged through the drainage holes 14; the drainage holes 14 can not only drain the moisture inside the housing, but also discharge the gas dispersed into the detection chamber 19.

[0023] A cover 26 is rotatably connected to the housing 11, and the air filter 3 is fixed to the support plate 1 by a bracket 15, which is L-shaped.

[0024] In this invention, when gas detection is required, the entire housing 11 is placed at the location to be detected. Powered by the switching power supply 10, the air switch 9 is turned on. At this time, the air pump 7 is turned on by the controller 17. The air pump 7 starts working, and ambient air enters the air intake pipe 2 through the air inlet 12 and enters the air filter 3 to filter out dust, catkins, and other impurities. The filtered ambient air then passes through multiple gas sensors 5 in sequence. The gas sensors 5 can be a combination of various types of gas detection sensors, assembled according to requirements, thus enabling the detection of multiple harmful gases. Subsequently, the gas passes through the flow meter 6 and then to the air pump 7, and finally disperses from the air outlet 18 of the air pump 7 into the detection chamber 19, and is discharged into the environment through the drain hole 14. The gas data detected by different gas sensors 5 are respectively sent to the controller 17. Through the existing preset signal processing unit in the controller 17, the detected gas composition and concentration can be obtained, and the gas composition and concentration can be displayed in real time on the display screen 8. The controller 17 can use an existing STM32 series controller, which can process gas data to obtain gas composition and concentration, and output an alarm when the concentration exceeds the standard.

[0025] In summary, this utility model achieves simultaneous and independent detection of multiple harmful gases through the combination of multiple gas sensors 5, the display screen 8 can display the detection results in real time, and the housing 11 can ensure that the internal structure is not affected by rain and dust, thereby improving the real-time performance and stability of gas detection.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An air quality detection box, characterized in that: The device includes a housing, the inner cavity of which forms a detection chamber. A support plate is provided in the detection chamber, and an air filter, a gas sensor, a flow meter, and an air pump are arranged sequentially on the support plate. The air filter is connected to the outside air through an air inlet pipe. There are multiple gas sensors, and different gas sensors detect different gases. A switching power supply and an air switch are provided on the support plate through wiring. The gas sensor, flow meter, air pump, and air switch are all connected to a controller.

2. The air quality detection box according to claim 1, characterized in that: The support plate is equipped with multiple connectors, and the gas sensor can be detachably mounted on the corresponding connector.

3. An air quality testing box according to claim 2, characterized in that: The connector has an installation port, and both ends of the connector have connection holes that communicate with the installation port. The connection holes at both ends and the installation port form an air cavity. The gas sensor is mounted on the detection circuit board, and the detection end of the gas sensor is inserted into the installation port. The detection circuit board is connected to the controller, and the detection circuit board and the connector are assembled and connected by a connecting post.

4. An air quality detection box according to claim 1, characterized in that: The controller is also connected to a display screen and an alarm. The display screen is used to display the gas composition and concentration, and the alarm is used to sound an alarm when the gas concentration exceeds the standard.

5. An air quality testing box according to claim 1, characterized in that: An air inlet is provided on the housing. The air filter, connector, flow meter, and air pump are connected by a connecting pipe. The air inlet is connected to the air inlet pipe to inject outside air into the detection chamber.

6. An air quality detection box according to claim 1, characterized in that: The air pump is equipped with a shock-absorbing soft rubber sleeve; the housing has several drainage holes, and the air pump has an air outlet, from which the detection gas is dispersed into the detection chamber.

7. An air quality detection box according to claim 1, characterized in that: A lid is rotatably connected to the housing, and the air filter is fixed to the support plate by a bracket, which is L-shaped.

Images