A vehicle-mounted air quality monitoring and reminder device

Abstract

The present invention relates to a vehicle-mounted air quality monitoring and reminding device applied in the field of air quality monitoring. By utilizing a pretreatment chamber, a temperature sensor and a detector, the sucked gas can be subjected to corresponding cooling pretreatment, so as to avoid direct contact detection between the high-temperature gas in the vehicle body and the probe of the detector, thereby protecting the service life of the detector. After cooling, the gas that has been left to cool in an isolation chamber for a period of time is subjected to oscillation and mixing treatment by utilizing a driving motor and a magnetic piston plate, and then the probe is extended into the isolation chamber for detection, so as to obtain relatively accurate detection results and ensure the authenticity and reliability of the detection. In addition, after the detection, the driving motor and the magnetic piston plate can be used for exhaust treatment, and with the help of a gas storage tank and an exhaust pipe, part of the gas can be collected during the exhaust process, so as to purge the subsequent magnetic piston plate and the dust and other objects remaining in the isolation chamber, thereby avoiding residual interference.

Description

Technical Field

[0001] The invention relates to an air quality monitoring and reminding device, in particular to a vehicle-mounted air quality monitoring and reminding device applied in the field of air quality monitoring. Background Art

[0002] The vehicle air monitor can be installed inside or outside the vehicle. The installation location of the vehicle air monitor should be selected according to specific needs and scenarios. If it is to monitor the air quality inside the vehicle and protect the health of the driver and passengers, it can be installed inside the vehicle; if it is to monitor the external atmospheric environment or provide data support for the environmental protection department, it can be installed outside the vehicle.

[0003] The specification of Chinese utility model patent CN210572218U discloses a vehicle-mounted air quality detection device. The utility model is provided with a partition, a sampling port and an air outlet on the lower cover, and the main control PCBA board in the lower cover is combined with the partition to form an air flow channel connecting the sampling port and the air outlet. The drainage fan and laser detection module used in conjunction with the air flow channel are also arranged in the lower cover, and the upper cover can be directly closed, so that the components of the detection device are concentrated on the lower cover, and no additional installation space is required, thereby greatly reducing the volume of the detection device to save the use space in the car.

[0004] Although the existing vehicle-mounted air monitoring equipment is small and convenient to install and use, since the car frame is made of metal, after a long period of outdoor parking, the temperature inside and outside the car will be at a high level. At this time, conducting corresponding air quality monitoring will cause the temperature of the sample gas to be high, which can easily damage the corresponding sensors in the monitoring equipment, is not conducive to the reliability of the test results, and has an adverse effect on the service life of the monitoring equipment. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is how to provide normal and effective air quality monitoring reminder services when the surface or interior of the vehicle is in a high temperature state.

[0006] In order to solve the above problems, the present invention provides a vehicle-mounted air quality monitoring and reminding device, comprising a base with an alarm and a cover body installed on the base, and the cover body is made of a heat-insulating material, a suction fan is installed at the top center of the base, a pretreatment chamber is installed inside the cover body, an isolation chamber made of a heat-conductive material and a semiconductor refrigeration ring located outside the isolation chamber are installed inside the pretreatment chamber, an air duct with a solenoid valve installed on the surface is installed through the bottom of the isolation chamber, and the tail end of the air duct is located above the suction fan, and a symmetrically arranged micro-thermoelectric generator is installed through the top of the pretreatment chamber, and the micro-thermoelectric generator is electrically connected to the semiconductor refrigeration ring;

[0007] A detector located above the pretreatment chamber is installed inside the cover body, and a probe is installed at the bottom of the detector, a heat insulation block is installed at the bottom of the probe, an electromagnetic ring is sleeved on the surface of the heat insulation block, a magnetic piston piece that attracts the electromagnetic ring is slidably installed on the top of the pretreatment chamber, and the magnetic piston piece is slidably connected to the electromagnetic ring, and an electromagnetic ring that attracts the magnetic piston piece is installed on the inner wall of the pretreatment chamber;

[0008] A driving motor is installed inside the cover body, and a No. 1 gear is connected to the output end of the driving motor. A No. 1 rack meshing with the No. 1 gear is fixedly connected to the surface of the detector. An elastic heat insulation cover located outside the probe is installed on the top of the pretreatment chamber, and the top of the elastic heat insulation cover is connected to the bottom of the detector.

[0009] In the above-mentioned vehicle-mounted air quality monitoring and reminder device, the sucked gas can be pre-treated with corresponding cooling to prevent the high-temperature gas in the vehicle body from directly contacting the probe of the detector for detection, thereby protecting the service life of the detector. The cooled gas is then shaken and mixed before detection, thereby obtaining a more accurate detection result.

[0010] As a further improvement of the present application, the electromagnetic coil is electrically connected to the electromagnetic ring, and the outer diameter of the electromagnetic coil is the same as the diameter of the probe.

[0011] As a further improvement of the present application, a through hole is provided at the bottom of the base, an elastic filter is installed at the bottom of the base, and magnetic blocks are installed at both ends of the elastic filter, and a slide groove is provided at the bottom of the base on both sides of the elastic filter, and electromagnetic blocks located on both sides of the magnetic block are fixedly installed inside the slide groove, and the electromagnetic blocks and the magnetic blocks attract each other.

[0012] As a further improvement of the present application, the cross-sectional area of ​​the elastic filter is larger than the setting range of the through hole, and the elastic filter is made of an elastic polymer filter. The cross-sectional area of ​​the elastic filter in the initial state is a downwardly convex arc design.

[0013] As a further improvement of the present application, a displacement sensor is installed inside the insulation block, and the displacement sensor is connected to the drive motor signal, and a temperature sensor is installed inside the pretreatment chamber.

[0014] As a further improvement of the present application, a through tube is designed to penetrate the surface of the magnetic piston plate, and an electronic valve is installed inside the through tube.

[0015] As a further improvement of the present application, it also includes a monitoring and control system, which includes an oscillation module, a monitoring module, a refrigeration module, an emission module, a dust removal module and a suction sampling module. The suction sampling module is connected to the suction fan signal, the refrigeration module is connected to the semiconductor refrigeration ring signal, the oscillation module, the monitoring module and the emission module are all connected to the drive motor and the electromagnetic ring and the electromagnetic coil signal, and the dust removal module is connected to the electromagnetic block signal.

[0016] As another improvement of the present application, the driving motor has a dual-drive structure, one of the output ends of the driving motor is connected to the No. 2 gear, one side of the No. 2 gear is meshedly connected to the No. 2 rack, the No. 2 rack is located on the side of the No. 2 gear away from the detector, the bottom end of the No. 2 rack is connected to a sealing piston plate, an air storage tank is installed inside the pretreatment chamber, and the sealing piston plate is slidably connected to the inside of the air storage tank, an exhaust pipe with its tail end extending to the outside of the cover body is installed through the inside of the isolation chamber, and the isolation chamber is connected to the air storage tank through an air duct.

[0017] As another improved supplement of the present application, the other output end of the driving motor is connected to gear No. 1, and an intercepting block with a fan-shaped cross-section is installed at the end of the air duct located in the isolation chamber, and the intercepting block is made of waterproof and breathable material, and a control valve is installed on the surface of the air duct, and the control valve is connected to the solenoid valve signal.

[0018] As another improved supplement of the present application, the bottom of the interception block is flush with the top of the air duct, and the interception block and the discharge pipe are located on both sides of the air duct.

[0019] To summarize, by using the pretreatment chamber, temperature sensor and detector, the sucked gas can be pre-treated with corresponding cooling to avoid direct contact between the high-temperature gas in the vehicle body and the probe of the detector for detection, thereby protecting the service life of the detector. After cooling, the drive motor and magnetic piston plate are used to oscillate and mix the gas that has been left to cool for a period of time in the isolation chamber, and then the probe is extended into the isolation chamber for detection, so as to obtain more accurate detection results and ensure the authenticity and reliability of the detection. In addition, after the detection, the drive motor and magnetic piston plate can be used for exhaust treatment, and with the help of the gas storage tank and the exhaust pipe, part of the gas can be collected during the exhaust to blow away the dust and other objects remaining in the subsequent magnetic piston plate and the isolation chamber to avoid residual interference. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the first implementation method of the present application;

[0021] Figure 2 This is a diagram showing the internal structure of the cover body according to the first embodiment of the present application;

[0022] Figure 3A bottom view of the bottom of the base of the first embodiment of the present application;

[0023] Figure 4 This is a structural diagram of an electromagnetic ring and an electromagnetic coil according to a first embodiment of the present application;

[0024] Figure 5 This is a state diagram of gas being sucked into the isolation chamber in the first embodiment of the present application;

[0025] Figure 6 This is a state diagram of the magnetic piston plate moving up and down in the first embodiment of the present application;

[0026] Figure 7 This is a diagram of the first embodiment of the present application in which the magnetic piston piece moves downward to exhaust gas;

[0027] Figure 8 This is a diagram showing the cleaning state of the elastic tube filter according to the first embodiment of the present application;

[0028] Fig. 9 This is an installation diagram of the gas storage tank, air duct and exhaust pipe of the second embodiment of the present application;

[0029] Fig.10 This is a diagram showing the purging state of the isolation chamber when the sealing piston piece moves downward in the second embodiment of the present application.

[0030] Description of the numbers in the figure:

[0031] 1. Base; 2. Cover; 3. Elastic filter; 4. Electromagnetic block; 5. Magnetic block; 6. Suction fan; 7. Pretreatment chamber; 71. Semiconductor refrigeration ring; 72. Air duct; 73. Isolation chamber; 74. Magnetic piston plate; 741. Electromagnetic ring; 8. Micro thermoelectric generator; 9. Driving motor; 91. Gear No. 1; 92. Rack No. 1; 93. Gear No. 2; 94. Rack No. 2; 10. Detector; 101. Probe; 102. Insulation block; 103. Electromagnetic coil; 11. Elastic insulation cover; 12. Gas storage tank; 13. Air duct; 14. Exhaust pipe. DETAILED DESCRIPTION

[0032] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0033] The first implementation method:

[0034] Figure 1-2A vehicle-mounted air quality monitoring and reminding device is shown, comprising a base 1 with an alarm and a cover 2 mounted on the base 1, and the cover 2 is made of a heat-insulating material, a suction fan 6 is installed at the top center of the base 1, a pretreatment chamber 7 is installed inside the cover 2, an isolation chamber 73 made of a heat-conducting material and a semiconductor refrigeration ring 71 located outside the isolation chamber 73 are installed inside the pretreatment chamber 7, an air guide 72 with a solenoid valve mounted on the surface is installed through the bottom of the isolation chamber 73, and the tail end of the air guide 72 is located above the suction fan 6, and a symmetrically arranged micro-thermoelectric generator 8 is installed through the top of the pretreatment chamber 7, and the micro-thermoelectric generator 8 is electrically connected to the semiconductor refrigeration ring 71;

[0035] Figure 2 and 4 As shown, a detector 10 located above the pretreatment chamber 7 is installed inside the cover body 2, and a probe 101 is installed at the bottom of the detector 10, a heat insulation block 102 is installed at the bottom of the probe 101, and an electromagnetic ring 103 is sleeved on the surface of the heat insulation block 102, a magnetic piston piece 74 that attracts the electromagnetic ring 103 is slidably installed on the top of the pretreatment chamber 7, and the magnetic piston piece 74 is slidably connected to the electromagnetic ring 103, and an electromagnetic ring 741 that attracts the magnetic piston piece 74 is installed on the inner wall of the pretreatment chamber 7;

[0036] A driving motor 9 is installed inside the cover body 2, and a No. 1 gear 91 is connected to the output end of the driving motor 9. A No. 1 rack 92 meshing with the No. 1 gear 91 is fixedly connected to the surface of the detector 10. An elastic heat insulation cover 11 located outside the probe 101 is installed on the top of the pretreatment chamber 7, and the top of the elastic heat insulation cover 11 is connected to the bottom of the detector 10.

[0037] The electromagnetic coil 103 is electrically connected to the electromagnetic ring 741 , and the outer diameter of the electromagnetic coil 103 is the same as the diameter of the probe 101 .

[0038] Specifically, when performing air quality detection in a vehicle body, the present application is installed in the vehicle body. In the initial state, the heat insulation block 102 slides through the magnetic piston plate 74, and the probe 101 and the isolation chamber 73 are in a separated state. When performing the corresponding air quality monitoring operation, the suction fan 6 sucks gas into the isolation chamber 73, and then the solenoid valve on the surface of the air guide pipe 72 is closed. At this time, the gas to be detected is isolated in the isolation chamber 73 (such as Figure 5As shown), the temperature sensor detects the temperature of the isolation chamber 73. When the temperature value exceeds the set threshold value (the specific value of the threshold value is adjusted according to the actual situation of the detector 10 and the probe 101. The reason for the temperature increase may be that the vehicle body is parked and exposed to the sun for a long time. The temperature increase in the vehicle body may cause the concentration of harmful substances such as formaldehyde in the vehicle to increase. In addition, the vehicle body is sealed when parked, and harmful substances such as formaldehyde cannot be discharged. During this period, corresponding air quality monitoring is required so that the environmental quality in the vehicle body can be grasped in time before getting on the vehicle later), the semiconductor refrigeration ring 71 is started to cool the isolation chamber 73 in the pretreatment chamber 7. At the same time, the micro thermoelectric generator 8 with the model TEG1-1261-1.5 thermoelectric generator can be used for thermoelectric conversion, thereby providing power supply for the operation of the semiconductor refrigeration ring 71 (this design allows the application to be installed on the outside of the vehicle body. It can also supply power normally, and then perform corresponding refrigeration treatment for high temperature state monitoring).

[0039] When the gas in the isolation chamber 73 is cooled to below the threshold, there is a period of time between when the gas just enters the isolation chamber 73. During this period, the gas in the isolation chamber 73 is in a static stratified state (because there may be a small amount of floating dust and other objects in the gas, which will settle). If the subsequent probe 101 enters directly, it may be difficult to detect data such as floating dust, resulting in reduced reliability of the detection result.

[0040] To this end, after the temperature in the isolation chamber 73 drops below the threshold, the drive motor 9 is first started to rotate forward and reverse for multiple times, and under the action of the No. 1 gear 91 and the No. 1 rack 92, the detector 10 is indirectly driven to move up and down for multiple times (in this process, the elastic heat insulation cover 11 maintains heat insulation protection for the probe 101, such as Figure 6 As shown), during this period, the electromagnetic coil 103 and the magnetic piston piece 74 are controlled to maintain a magnetic attraction state, and the magnetic attraction state of the electromagnetic ring 741 and the magnetic piston piece 74 is released (that is, the electromagnetic ring 741 is not started), so that in the process of the detector 10 moving up and down, the magnetic piston piece 74 can be driven to move up and down, thereby having an oscillating mixing effect on the gas in the isolation chamber 73, so that the internal gas is evenly mixed, the electromagnetic ring 741 is started, the electromagnetic coil 103 is turned off, and the detector 10 and the probe 101 are driven downward with the cooperation of the drive motor 9, so that the insulation block 102 and the probe 101 move to the bottom of the magnetic piston piece 74, contact with the evenly mixed gas, perform detection, obtain the detection result, and compare the detection result. When the safety threshold is exceeded, the detector 10 sends an alarm signal to the alarm electrically connected to it.

[0041] After the detection is completed, the electromagnetic coil 103 is kept energized, and the electromagnetic ring 741 is de-energized. With the cooperation of the drive motor 9, the magnetic piston piece 74 is continuously pushed down, and the electromagnetic valve on the surface of the air guide pipe 72 is opened, so that the gas and floating dust in the isolation chamber 73 are discharged through the air guide pipe 72 (such as Figure 7 as shown).

[0042] A through-tube is designed to penetrate the surface of the magnetic piston plate 74, and an electronic valve is installed inside the through-tube.

[0043] Specifically, the electronic valve is opened when the magnetic piston plate 74 is at the node where it needs to return after exhausting at the bottom of the isolation chamber 73, so that the air pressure above and below the magnetic piston plate 74 in the isolation chamber 73 is the same, and no suction effect is formed.

[0044] Figure 3 As shown, a through hole is provided at the bottom of the base 1, an elastic filter screen 3 is installed at the bottom of the base 1, and magnetic blocks 5 are installed at both ends of the elastic filter screen 3, and a slide groove is provided at the bottom of the base 1 on both sides of the elastic filter screen 3, and electromagnetic blocks 4 on both sides of the magnetic block 5 are fixedly installed inside the slide groove, and the electromagnetic blocks 4 and the magnetic blocks 5 attract each other.

[0045] The cross-sectional area of ​​the elastic filter 3 is larger than the setting range of the through hole, and the elastic filter 3 is made of an elastic polymer filter. The cross-sectional design of the elastic filter 3 in the initial state is a downwardly convex arc.

[0046] Specifically, during suction, large particles of dust and foreign matter in the external environment are intercepted by the elastic filter 3. Later, when cleaning foreign matter or blockage on the surface of the elastic filter 3, the electromagnetic block 4 is intermittently started multiple times, and the magnetic moving block 5 is driven close to the electromagnetic block 4. After that, the electromagnetic block 4 is powered off, and the elastic filter 3 is restored to its original state by virtue of its own elasticity, so that the elastic filter 3 is stretched to both sides and then restored to its original state, thereby achieving a shaking effect, and cleaning foreign matter and blockage on the surface (such as Figure 8 as shown).

[0047] A displacement sensor is installed inside the heat insulation block 102 , and the displacement sensor is connected to the drive motor 9 by signal. A temperature sensor is installed inside the pretreatment chamber 7 .

[0048] Specifically, the displacement sensor is used to monitor the movement distance of the insulation block 102, thereby providing a reference for the rotation amplitude of the drive motor 9, and the temperature sensor is used to monitor the temperature value of the sampled gas and the temperature value after cooling.

[0049] It also includes a monitoring and control system, which includes an oscillation module, a monitoring module, a refrigeration module, an emission module, a dust removal module and an extraction sampling module. The extraction sampling module is connected to the suction fan 6 by signal and is used to extract gas. The refrigeration module is connected to the semiconductor refrigeration ring 71 by signal and is used to perform gas refrigeration. The oscillation module, the monitoring module and the emission module are all connected to the drive motor 9, the electromagnetic ring 741 and the electromagnetic coil 103 by signal. The oscillation module is used to mix the gas that is left to stand after cooling. The monitoring module is used to detect the gas quality. The emission module is used to discharge the gas in the isolation chamber 73. The dust removal module is connected to the electromagnetic block 4 by signal and is used to perform dust removal operations.

[0050] The second implementation method:

[0051] Fig. 9 It is shown that the driving motor 9 is a dual-drive structure, one of the output ends of the driving motor 9 is connected to a No. 2 gear 93, one side of the No. 2 gear 93 is meshedly connected to a No. 2 rack 94, the No. 2 rack 94 is located on the side of the No. 2 gear 93 away from the detector 10, the bottom end of the No. 2 rack 94 is connected to a sealing piston plate, an air storage tank 12 is installed inside the pretreatment chamber 7, and the sealing piston plate is slidably connected to the inside of the air storage tank 12, an exhaust pipe 14 with its tail end extending to the outside of the cover body 2 is installed through the interior of the isolation chamber 73, and the isolation chamber 73 is connected to the air storage tank 12 through an air duct 13.

[0052] The other output end of the driving motor 9 is connected to the No. 1 gear 91. An interception block with a fan-shaped cross-section is installed at the end of the air duct 13 located in the isolation chamber 73, and the interception block is made of waterproof and breathable material. A control valve is installed on the surface of the air duct 13, and the control valve is connected to the solenoid valve signal.

[0053] The bottom of the interception block is flush with the top of the air guide pipe 72 , and the interception block and the discharge pipe 14 are located on both sides of the air guide pipe 72 .

[0054] Different from the first embodiment, the present embodiment mainly improves the solid matter such as residual dust that may exist when the magnetic piston plate 74 discharges the gas in the isolation chamber 73 in the first embodiment. In the present embodiment, a valve is installed on the surface of the discharge pipe 14. The valve is opened only when discharging dust. In other states, it is in a closed state. In the present embodiment, the interior of the sealing piston plate is also designed with a through pipe similar to that in the first embodiment. The through pipe is also used to prevent the sealing piston plate from moving up and resetting to cause suction.

[0055] Specifically, when the gas in the isolation chamber 73 is discharged, the solenoid valve is closed and the control valve is opened. As the magnetic piston piece 74 moves downward, part of the gas in the isolation chamber 73 is discharged from the inside of the cover body 2 through the discharge pipe 14, and the other part enters the inside of the gas storage tank 12 through the air duct 13 (because of the interception of the interception block, the gas entering the gas storage tank 12 does not contain solid matter such as floating dust). At this time, the magnetic piston piece 74 is located near the bottom end of the isolation chamber 73, so that the space in the isolation chamber 73 is small;

[0056] Then, the driving motor 9 is started, and the sealing piston piece is driven downward by the second gear 93 and the second rack 94, so that the gas in the gas storage tank 12 is discharged into the isolation chamber 73. Since the bottom of the interception block is flush with the top of the air guide pipe 72, a wind sweeping effect is achieved, and the floating dust and other solids remaining in the magnetic piston piece 74 and the isolation chamber 73 are cleaned and discharged through the discharge pipe 14 (such as Fig.10 as shown).

[0057] After discharge, the sealing piston plate needs to be moved upward, which can be achieved by reverse rotation of one of the output ends of the drive motor 9.

[0058] In summary, the present application utilizes the pretreatment chamber 7, the temperature sensor, and the detector 10 to perform corresponding cooling pretreatment on the sucked gas, thereby preventing the high-temperature gas in the vehicle body from directly contacting and detecting with the probe 101 of the detector 10, protecting the service life of the detector 10, and after cooling, utilizing the drive motor 9 and the magnetic piston plate 74 to perform an oscillation and mixing treatment on the gas that has been left to cool for a period of time in the isolation chamber 73, and then extending the probe 101 into the isolation chamber 73 for detection, thereby obtaining a more accurate detection result and ensuring the authenticity and reliability of the detection. In addition, after the detection, utilizing the drive motor 9 and the magnetic piston plate 74 to perform exhaust treatment, and with the help of the gas storage tank 12 and the exhaust pipe 14, it is possible to utilize the collection of part of the gas during the exhaust process to blow away the dust and other objects remaining in the subsequent magnetic piston plate 74 and the isolation chamber 73, thereby avoiding residual interference.

[0059] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A vehicle-mounted air quality monitoring and reminder device, comprising a base (1) with an alarm and a cover (2) mounted on the base (1), wherein the cover (2) is made of a heat-insulating material, and characterized in that: A suction fan (6) is installed at the top center of the base (1), a pretreatment chamber (7) is installed inside the cover body (2), an isolation chamber (73) made of heat-conducting material and a semiconductor refrigeration ring (71) located outside the isolation chamber (73) are installed inside the pretreatment chamber (7), an air guide pipe (72) with a solenoid valve installed on the surface is installed through the bottom of the isolation chamber (73), and the tail end of the air guide pipe (72) is located above the suction fan (6), and a symmetrically arranged micro-thermoelectric generator (8) is installed through the top of the pretreatment chamber (7), and the micro-thermoelectric generator (8) is electrically connected to the semiconductor refrigeration ring (71); A detector (10) located above the pretreatment chamber (7) is installed inside the cover body (2), and a probe (101) is installed at the bottom of the detector (10), a heat insulation block (102) is installed at the bottom of the probe (101), and an electromagnetic ring (103) is sleeved on the surface of the heat insulation block (102), a magnetic piston piece (74) that attracts the electromagnetic ring (103) is slidably installed on the top of the pretreatment chamber (7), and the magnetic piston piece (74) is slidably connected to the electromagnetic ring (103), and an electromagnetic ring (741) that attracts the magnetic piston piece (74) is installed on the inner wall of the pretreatment chamber (7); A driving motor (9) is installed inside the cover body (2), and the output end of the driving motor (9) is connected to a first gear (91). A first rack (92) meshingly connected to the first gear (91) is fixedly connected to the surface of the detector (10). An elastic heat insulation cover (11) located outside the probe (101) is installed on the top of the pretreatment chamber (7), and the top of the elastic heat insulation cover (11) is connected to the bottom of the detector (10). In an initial state, the heat insulation block (102) slides through the magnetic piston plate (74).

2. The vehicle-mounted air quality monitoring and reminding device according to claim 1, characterized in that: The electromagnetic coil (103) is electrically connected to the electromagnetic ring (741), and the outer diameter of the electromagnetic coil (103) is the same as the diameter of the probe (101).

3. The vehicle-mounted air quality monitoring and reminding device according to claim 2, characterized in that: The bottom of the base (1) is provided with a through hole, the bottom of the base (1) is provided with an elastic filter screen (3), and both ends of the elastic filter screen (3) are provided with magnetic blocks (5), the bottom of the base (1) is provided with a slide groove located on both sides of the elastic filter screen (3), and the inside of the slide groove is fixedly provided with electromagnetic blocks (4) located on both sides of the magnetic block (5), and the electromagnetic blocks (4) and the magnetic block (5) attract each other.

4. The vehicle-mounted air quality monitoring and reminding device according to claim 3, characterized in that: The cross-sectional area of ​​the elastic filter (3) is larger than the setting range of the through hole, and the elastic filter (3) is made of an elastic polymer filter. In the initial state, the cross-sectional design of the elastic filter (3) is a downwardly convex arc.

5. The vehicle-mounted air quality monitoring and reminding device according to claim 4, characterized in that: A displacement sensor is installed inside the thermal insulation block (102), and the displacement sensor is connected to the drive motor (9) by signal, and a temperature sensor is installed inside the pretreatment chamber (7).

6. The vehicle-mounted air quality monitoring and reminding device according to claim 5, characterized in that: A through-tube is designed to penetrate the surface of the magnetic piston plate (74), and an electronic valve is installed inside the through-tube.

7. The vehicle-mounted air quality monitoring and reminding device according to claim 6, characterized in that: The system also includes a monitoring and control system, which includes an oscillation module, a monitoring module, a refrigeration module, an emission module, a dust removal module and an extraction sampling module, wherein the extraction sampling module is connected to a suction fan (6) by signal, the refrigeration module is connected to a semiconductor refrigeration ring (71) by signal, the oscillation module, the monitoring module and the emission module are all connected to a drive motor (9), an electromagnetic ring (741) and an electromagnetic coil (103) by signal, and the dust removal module is connected to an electromagnetic block (4) by signal.

8. The vehicle-mounted air quality monitoring and reminding device according to claim 1, characterized in that: The drive motor (9) is a dual-drive structure, one of the output ends of the drive motor (9) is connected to a second gear (93), one side of the second gear (93) is meshingly connected to a second rack (94), the second rack (94) is located on the side of the second gear (93) facing away from the detector (10), the bottom end of the second rack (94) is connected to a sealing piston plate, an air storage tank (12) is installed inside the pretreatment chamber (7), and the sealing piston plate is slidably connected to the inside of the air storage tank (12), the inside of the isolation chamber (73) is penetrated by a discharge pipe (14) whose tail end extends to the outside of the cover body (2), and the isolation chamber (73) is connected to the air storage tank (12) through an air duct (13).

9. The vehicle-mounted air quality monitoring and reminding device according to claim 8, characterized in that: The other output end of the driving motor (9) is connected to the first gear (91); an interception block with a fan-shaped cross section is installed at the end of the air duct (13) located in the isolation chamber (73); the interception block is made of a waterproof and breathable material; a control valve is installed on the surface of the air duct (13); and the control valve is connected to the electromagnetic valve signal.

10. The vehicle-mounted air quality monitoring and reminding device according to claim 9, characterized in that: The bottom of the interception block is flush with the top of the air guide pipe (72), and the interception block and the discharge pipe (14) are located on both sides of the air guide pipe (72).

Images