Automatic monitoring device for atmospheric particulates

Abstract

The utility model provides an automatic monitoring device for atmospheric particulates. The automatic monitoring device comprises a particle separation unit, a cleaning unit and a monitoring unit, the particle separation unit comprises a separation barrel, a large particle collector, an air inlet pipeline, a cover body, a first air outlet pipeline, a first filter cavity, a second air outlet pipeline, a second filter cavity and a filter membrane, the large particle collector is arranged at the lower part of the separation barrel and is communicated with the separation barrel, the air inlet pipeline is arranged on one side of the separation barrel and is communicated with the separation barrel, and the filter membrane is arranged in the second filter cavity. A cover body is arranged on the upper portion of the separation cylinder, has an opening state and a closing state relative to the separation cylinder and is provided with a first air outlet pipeline. The nitrogen generator is used for releasing nitrogen, the nitrogen enters the large particulate matter collector through the channel and the port, and the path from the large particulate matter collector to the second gas outlet pipeline is communicated, so that the nitrogen washes the part, and the effect of cleaning the device is achieved.

Description

Technical Field

[0001] The utility model relates to a monitoring device, in particular to an automatic monitoring device for atmospheric particles, belonging to the technical field of atmospheric monitoring. Background Art

[0002] Atmospheric particles are tiny particulate matter in the air, including dust, smoke, pollen, etc. Their presence can have adverse effects on health, the environment and climate. Monitoring atmospheric particulate matter can help us understand the air quality, take timely control measures, reduce the emission of harmful gases, and protect the environment and human health.

[0003] The Chinese invention patent with application publication number CN111693420A discloses an automatic monitoring and collection device for atmospheric particulate matter and its application method, including a body, legs and a controller; a spherical cover is provided above the body, and a plurality of hemispherical concentric filter membranes are provided inside the spherical cover, and the filter membranes are arranged in sequence according to the specifications of the filter holes; because in the process of measuring atmospheric particulate matter, the mixing state of the atmospheric particulate matter guided by the guide fan is changed, which produces a difference with the distribution of atmospheric particulate matter in the environment, weakening the accuracy of the optical detector measuring the distribution data of atmospheric particulate matter; therefore, the invention intercepts the atmospheric particulate matter respectively by the multi-layer filter membranes arranged in the spherical cover, and obtains the mass of particles of each particle size in the atmospheric particulate matter under the change of the pressure difference data between the filter membranes measured by the sensor, thereby improving the application effect of the automatic monitoring and collection device for atmospheric particulate matter. However, since the device needs to suck the particles in the air into the interior for monitoring, it is easy to accumulate more particles and dust inside the device, resulting in inaccurate monitoring results, and the operator needs to clean the interior regularly to ensure the accuracy of the monitoring results. Utility Model Content

[0004] Based on the above background, the purpose of the present invention is to provide an automatic monitoring device for atmospheric particulate matter that can be automatically cleaned and is easy to operate, so as to solve the problems described in the background technology.

[0005] In order to achieve the above-mentioned utility model purpose, the utility model provides the following technical solutions:

[0006] An automatic monitoring device for atmospheric particulate matter, comprising a particle separation unit, a cleaning unit and a monitoring unit;

[0007] The particle separation unit comprises a separation cylinder, a large particle collector, an air inlet pipe, a cover body, a first air outlet pipe, a first filter cavity, a second air outlet pipe, a second filter cavity and a filter membrane, wherein the large particle collector is arranged at the lower part of the separation cylinder, and the large particle collector is communicated with the separation cylinder, an air inlet pipe is arranged at one side of the separation cylinder, and the air inlet pipe is communicated with the separation cylinder, a cover body is arranged at the upper part of the separation cylinder, and the cover body has two states of opening and closing relative to the separation cylinder, a first air outlet pipe is arranged at the cover body, the first air outlet pipe is communicated with the cover body, the first air outlet pipe is communicated with the inside of the separation cylinder, a first filter cavity is arranged at the upper part of the first air outlet pipe, the first filter cavity is communicated with the first air outlet pipe, a second filter cavity is arranged at the upper part of the first filter cavity, the first filter cavity is detachably fixedly connected with the second filter cavity, a second air outlet pipe is arranged at the upper part of the second filter cavity, the second air outlet pipe is communicated with the second filter cavity, a filter membrane is arranged between the first filter cavity and the second filter cavity, and the filter membrane is detachably fixedly connected with the first filter cavity and the second filter cavity;

[0008] The cleaning unit includes a base and a nitrogen generator, wherein a placement groove is provided inside the base, wherein the placement groove is used to place the nitrogen generator, wherein the nitrogen generator is connected to the base, wherein a groove is provided on the upper portion of the base, wherein the large particle collector is rotatably matched with the base in the groove, wherein a channel is provided between the placement groove and the groove, wherein the channel is connected to the placement groove and the groove, wherein a through opening is provided on a side wall of the large particle collector, wherein the through opening is connected to the large particle collector, and wherein the through opening has two states relative to the channel: connected and staggered;

[0009] The monitoring unit includes a first particle sensor, a second particle sensor and a third particle sensor. The first particle sensor is located in a first filter cavity and is connected to the first filter cavity. The second particle sensor is located in a second filter cavity and is connected to the second filter cavity. The third particle sensor is located in a groove and is connected to the base.

[0010] Air enters the separation cylinder through the air inlet pipe at high speed, and enters the separation cylinder along a 180-degree involute to form a rotating airflow. Under the action of inertial centrifugal force, the particles are thrown onto the inner wall of the separation cylinder and move downward. The coarse particles lose their forward energy in the continuous collision with the inner wall of the separation cylinder and fall into the large particle collector. The fine particles rise along the direction of the first air outlet pipe and the second air outlet pipe with the airflow and are discharged. During this period, the fine particles are captured by the filter membrane between the first filter cavity and the second filter cavity, thereby separating the coarse and fine particles.

[0011] After the device has been monitored for a long time, the large particle collector can rotate in the groove together with the separator, so that the opening of the large particle collector is connected to the channel, and the nitrogen generator is controlled to release nitrogen. The nitrogen enters the large particle collector through the channel and the opening. Since the path from the large particle collector to the second air outlet pipe is connected, the nitrogen flushes this part. During this period, the cover body and the separation cylinder continuously change between the open and closed states, thereby achieving a more thorough cleaning effect on the device.

[0012] The first particle sensor, the second particle sensor and the third particle sensor respectively monitor the particle concentration in the first filter chamber, the particle concentration in the second filter chamber and the particle concentration in the large particle collector, thereby realizing the concentration monitoring of particles of different diameters in the atmosphere, making the monitoring of the device more comprehensive.

[0013] Preferably, a plurality of electric push rods are arranged between the separation cylinder and the cover body, the electric push rods are connected to the separation cylinder, and the output ends of the electric push rods are connected to the cover body.

[0014] The electric push rod can make the separation and connection between the separation cylinder and the cover body more convenient.

[0015] Preferably, the base is provided with a fastener, and the fastener is connected to the base.

[0016] Fasteners facilitate mounting the device at a desired location.

[0017] Preferably, a sealing member is provided at the outer edge of the lower portion of the cover body, and the sealing member is connected to the cover body.

[0018] The seal can effectively prevent air or particles from leaking from the contact surface between the cover body and the separation cylinder.

[0019] Preferably, both the first filter cavity and the second filter cavity are provided with bayonet ports, and the outer edge of the filter membrane is provided with a buckle, and the buckle matches the bayonet port.

[0020] The filter membrane is connected between the first filter cavity and the second filter cavity through a buckle and a bayonet, so that the filter membrane is easy to replace.

[0021] Preferably, the height of the air inlet pipe is greater than the height of the lower end of the first air outlet pipe.

[0022] The height of the gas inlet pipe being greater than the height of the lower end of the first gas outlet pipe can help distinguish the direction of the gas flow and help achieve effective gas separation inside the separation cylinder.

[0023] Preferably, the base is provided with a first gear, and the first gear is located outside the groove, the first gear is connected to the base, the inner side of the first gear is detachably fixedly connected to the large particle collector, a second gear is provided on the outer side of the first gear, the second gear meshes with the first gear, a motor is provided on the side of the second gear away from the first gear, the motor is connected to the base, and the output end of the motor is connected to the second gear.

[0024] The motor provides power to drive the second gear to mesh with the first gear, thereby causing the large particle collector connected to the first gear to rotate.

[0025] Preferably, a control panel is provided on one side of the base, the control panel is connected to the base, and the control panel is electrically connected to the nitrogen generator, the first particle sensor, the second particle sensor, the third particle sensor, a plurality of electric push rods and a motor.

[0026] The control panel can obtain the status information of the nitrogen generator, the first particle sensor, the second particle sensor, the third particle sensor, several electric push rods and motors in real time, and adjust and control them as needed, thereby realizing flexible management and optimized adjustment of the functions of the device and improving the operating convenience and efficiency of the device.

[0027] Preferably, the automatic atmospheric particulate matter monitoring device further comprises a mobile terminal, which is electrically connected to the control panel.

[0028] The mobile terminal can receive data feedback from the control panel in real time, allowing users to understand the operating status and monitoring results of the device and take necessary measures in a timely manner.

[0029] Compared with the prior art, the utility model has the following advantages:

[0030] The utility model discloses an automatic monitoring device for atmospheric particulate matter. A large particle collector can be rotated in a groove together with a separator, so that the opening of the large particle collector is connected with a channel, and a nitrogen generator is controlled to release nitrogen. The nitrogen enters the large particle collector through the channel and the opening. Since the path from the large particle collector to the second air outlet pipe is in a connected state, the nitrogen flushes the part, thereby achieving the effect of cleaning the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0032] Figure 1 It is a schematic diagram of the overall structure of the automatic atmospheric particulate matter monitoring device of the utility model;

[0033] Figure 2 It is a cross-sectional view of the utility model automatic monitoring device for atmospheric particulate matter;

[0034] Figure 3 yes Figure 2 Schematic diagram of the enlarged structure of part A in the middle.

[0035] In the figure: 101, separation cylinder; 102, large particle collector; 103, air inlet pipe; 104, cover body; 105, first air outlet pipe; 106, first filter chamber; 107, second air outlet pipe; 108, second filter chamber; 109, filter membrane; 201, base; 202, nitrogen generator; 301, first particle sensor; 302, second particle sensor; 303, third particle sensor; 4, placement slot; 5, groove; 6, channel; 7, through port; 8, electric push rod; 9, fastener; 10, seal; 11, bayonet; 12, buckle; 13, first gear; 14, second gear; 15, motor; 16, control panel. DETAILED DESCRIPTION

[0036] The technical solution of the utility model is further described in detail below through specific embodiments and in combination with the accompanying drawings. It should be understood that the implementation of the utility model is not limited to the following embodiments, and any form of modification and / or change made to the utility model will fall within the protection scope of the utility model.

[0037] In the present invention, unless otherwise specified, all parts and percentages are weight units, and the equipment and raw materials used can be purchased from the market or are commonly used in the field. The methods in the following embodiments, unless otherwise specified, are conventional methods in the field. The components or equipment in the following embodiments, unless otherwise specified, are universal standard parts or components known to those skilled in the art, and their structures and principles are known to those skilled in the art through technical manuals or conventional experimental methods.

[0038] The following is a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. In the following detailed description, for ease of explanation, many specific details are described to provide a comprehensive understanding of the embodiments of the present invention. However, one or more embodiments may also be implemented by those skilled in the art without these specific details.

[0039] like Figure 1-Figure 3 As shown, an automatic monitoring device for atmospheric particulate matter includes a particle separation unit, a cleaning unit and a monitoring unit.

[0040] The particle separation unit includes a separation cylinder 101 , a large particle collector 102 , an air inlet pipe 103 , a cover 104 , a first air outlet pipe 105 , a first filter cavity 106 , a second air outlet pipe 107 , a second filter cavity 108 and a filter membrane 109 .

[0041] A large particle collector 102 is provided at the lower part of the separation cylinder 101, and the large particle collector 102 is communicated with the separation cylinder 101. An air inlet pipe 103 is provided at one side of the separation cylinder 101, and the air inlet pipe 103 is communicated with the separation cylinder 101. A cover 104 is provided at the upper part of the separation cylinder 101, and the cover 104 has two states of opening and closing relative to the separation cylinder 101. A seal 10 is provided at the outer edge of the lower part of the cover 104, and the seal 10 is connected to the cover 104. The seal 10 can effectively prevent air or particles from leaking from the contact surface between the cover 104 and the separation cylinder 101.

[0042] The cover body 104 is provided with a first air outlet pipe 105, the first air outlet pipe 105 is connected with the cover body 104, the first air outlet pipe 105 is connected with the interior of the separation cylinder 101, a first filter cavity 106 is provided on the upper part of the first air outlet pipe 105, the first filter cavity 106 is connected with the first air outlet pipe 105, a second filter cavity 108 is provided on the upper part of the first filter cavity 106, the first filter cavity 106 and the second filter cavity 108 are detachably fixedly connected, a second air outlet pipe 107 is provided on the upper part of the second filter cavity 108, the second air outlet pipe 107 is connected with the second filter cavity 108, and a filter membrane 109 is provided between the first filter cavity 106 and the second filter cavity 108.

[0043] The air enters the separation cylinder 101 through the air inlet pipe 103 at high speed. The high-speed air enters the separation cylinder 101 along a 180-degree involute, forming a rotating airflow. Under the action of inertial centrifugal force, the particles are thrown onto the inner wall of the separation cylinder 101 and move downward. The coarse particles lose their forward energy in the continuous collision with the inner wall of the separation cylinder 101 and fall into the large particle collector 102. The fine particles rise and are discharged along the direction of the first air outlet pipe 105 and the second air outlet pipe 107 with the airflow. During this period, the fine particles are captured by the filter membrane 109 between the first filter cavity 106 and the second filter cavity 108, thereby separating the coarse and fine particles. The height of the air inlet pipe 103 is greater than the height of the lower end of the first air outlet pipe 105. The height of the air inlet pipe 103 is greater than the height of the lower end of the first air outlet pipe 105, which can help distinguish the direction of the gas flow and help to achieve effective gas separation inside the separation cylinder 101.

[0044] The first filter cavity 106 and the second filter cavity 108 are both provided with a bayonet 11, and the outer edge of the filter membrane 109 is provided with a buckle 12, which matches the bayonet 11. The filter membrane 109 is connected between the first filter cavity 106 and the second filter cavity 108 through the buckle 12 and the bayonet 11, so that the filter membrane 109 is easy to replace.

[0045] The monitoring unit includes a first particle sensor 301 , a second particle sensor 302 and a third particle sensor 303 .

[0046] Among them, the first particle sensor 301 is located in the first filter cavity 106, and the first particle sensor 301 is connected to the first filter cavity 106, the second particle sensor 302 is located in the second filter cavity 108, and the second particle sensor 302 is connected to the second filter cavity 108, and the third particle sensor 303 is located in the large particle collector 102. The first particle sensor 301, the second particle sensor 302 and the third particle sensor 303 respectively monitor the particle concentration in the first filter cavity 106, the particle concentration in the second filter cavity 108 and the particle concentration in the large particle collector 102, thereby realizing the concentration monitoring of particles of different diameters in the atmosphere, making the monitoring of the device more comprehensive.

[0047] After the device has been monitored for a long time, the cleaning unit starts to work. The cleaning unit includes a base 201 and a nitrogen generator 202. A placement groove 4 is provided inside the base 201. The nitrogen generator 202 is placed in the placement groove 4. The nitrogen generator 202 is connected to the base 201. A groove 5 is provided on the upper part of the base 201. The large particle collector 102 rotates with the base 201 in the groove 5. A channel 6 is provided between the placement groove 4 and the groove 5. The channel 6 is connected to the placement groove 4 and the groove 5. A through hole 7 is provided on the side wall of the large particle collector 102. The through hole 7 is connected to the large particle collector 102. The through hole 7 has two states relative to the channel 6: connected and staggered.

[0048] The large particle collector 102 rotates together with the separator in the groove 5, so that the port 7 of the large particle collector 102 is connected with the channel 6, and the nitrogen generator 202 is controlled to release nitrogen. The nitrogen enters the large particle collector 102 through the channel 6 and the port 7. Since the path from the large particle collector 102 to the second air outlet pipe 107 is connected, the nitrogen flushes this part. Among them, several electric push rods 8 are arranged between the separation cylinder 101 and the cover body 104. The electric push rod 8 is connected to the separation cylinder 101, and the output end of the electric push rod 8 is connected to the cover body 104. The cover body 104 and the separation cylinder 101 are constantly changed between the open and closed states, so as to achieve a more complete cleaning effect on the device.

[0049] A first gear 13 is provided on the base 201 of the electric push rod 8, and the first gear 13 is located outside the groove 5, the first gear 13 is connected to the base 201, the inner side of the first gear 13 is detachably fixedly connected to the large particle collector 102, a second gear 14 is provided on the outer side of the first gear 13, the second gear 14 meshes with the first gear 13, a motor 15 is provided on the side of the second gear 14 away from the first gear 13, the motor 15 is connected to the base 201, and the output end of the motor 15 is connected to the second gear 14.

[0050] The motor 15 provides power to drive the second gear 14 to mesh with the first gear 13, thereby rotating the large particle collector 102 connected to the first gear 13. The separation and connection between the separation cylinder 101 and the cover 104 can be more convenient, thereby achieving a more complete cleaning effect on the device.

[0051] The base 201 is provided with a fastener 9, which is connected to the base 201. The fastener 9 can facilitate the installation of the device at a desired location.

[0052] A control panel 16 is disposed on one side of the base 201 , and the control panel 16 is connected to the base 201 . The control panel 16 is electrically connected to the nitrogen generator 202 , the first particle sensor 301 , the second particle sensor 302 , the third particle sensor 303 , several electric push rods 8 and the motor 15 .

[0053] The control panel 16 can obtain the status information of the nitrogen generator 202, the first particle sensor 301, the second particle sensor 302, the third particle sensor 303, several electric push rods 8 and the motor 15 in real time, and adjust and control them as needed, so as to realize flexible management and optimal adjustment of the functions of the device, thereby improving the operating convenience and efficiency of the device.

[0054] The automatic atmospheric particulate matter monitoring device further includes a mobile terminal, which is electrically connected to the control panel 16 .

[0055] The mobile terminal can receive data feedback from the control panel 16 in real time, allowing the user to understand the operating status and monitoring results of the device, so as to take necessary measures in time.

[0056] The operating steps of the automatic monitoring device for atmospheric particulate matter of the utility model are as follows:

[0057] The air enters the separation cylinder 101 through the air inlet pipe 103 at high speed. The high-speed air enters the separation cylinder 101 along a 180-degree involute, forming a rotating airflow. Under the action of inertial centrifugal force, the particles are thrown onto the inner wall of the separation cylinder 101 and move downward. The coarse particles lose their forward energy in the continuous collision with the inner wall of the separation cylinder 101 and fall into the large particle collector 102. The fine particles rise and are discharged along the direction of the first air outlet pipe 105 and the second air outlet pipe 107 with the airflow. During this period, the fine particles are captured by the filter membrane 109 between the first filter cavity 106 and the second filter cavity 108, thereby separating the coarse and fine particles. The first particle sensor 301, the second particle sensor 302 and the third particle sensor 303 respectively monitor the particle concentration in the first filter cavity 106, the particle concentration in the second filter cavity 108 and the particle concentration in the large particle collector 102, thereby realizing the concentration monitoring of particles of different diameters in the atmosphere, making the monitoring of the device more comprehensive.

[0058] After using the device to monitor atmospheric particles for a long time, the large particle collector 102 can rotate with the separator in the groove 5, so that the port 7 of the large particle collector 102 is connected with the channel 6, and the nitrogen generator 202 is controlled to release nitrogen. The nitrogen enters the large particle collector 102 through the channel 6 and the port 7. Since the path from the large particle collector 102 to the second air outlet pipe 107 is connected, the nitrogen flushes this part. During this period, the cover body 104 and the separation cylinder 101 continuously change between the open and closed states, so as to achieve a more thorough cleaning effect on the device.

[0059] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. An automatic monitoring device for atmospheric particulate matter, characterized in that: The automatic atmospheric particulate matter monitoring device comprises a particle separation unit, a cleaning unit and a monitoring unit; The particle separation unit comprises a separation cylinder (101), a large particle collector (102), an air inlet pipe (103), a cover body (104), a first air outlet pipe (105), a first filter chamber (106), a second air outlet pipe (107), a second filter chamber (108) and a filter membrane (109); the large particle collector (102) is arranged at the lower part of the separation cylinder (101); the large particle collector (102) is communicated with the separation cylinder (101); an air inlet pipe (103) is arranged at one side of the separation cylinder (101); the air inlet pipe (103) is communicated with the separation cylinder (101); a cover body (104) is arranged at the upper part of the separation cylinder (101); the cover body (104) has two states of opening and closing relative to the separation cylinder (101); the cover body (104) is arranged with a first air outlet pipe (105); the first air outlet pipe (105) ) is communicated with the cover body (104), the first air outlet pipe (105) is communicated with the interior of the separation cylinder (101), a first filter cavity (106) is arranged on the upper part of the first air outlet pipe (105), the first filter cavity (106) is communicated with the first air outlet pipe (105), a second filter cavity (108) is arranged on the upper part of the first filter cavity (106), the first filter cavity (106) and the second filter cavity (108) are detachably fixedly connected, a second air outlet pipe (107) is arranged on the upper part of the second filter cavity (108), the second air outlet pipe (107) is communicated with the second filter cavity (108), a filter membrane (109) is arranged between the first filter cavity (106) and the second filter cavity (108), and the filter membrane (109) is detachably fixedly connected to the first filter cavity (106) and the second filter cavity (108); The cleaning unit comprises a base (201) and a nitrogen generator (202); a placement groove (4) is provided inside the base (201); the placement groove (4) is used to place the nitrogen generator (202); the nitrogen generator (202) is connected to the base (201); a groove (5) is provided on the upper part of the base (201); the large particle collector (102) is rotatably matched with the base (201) in the groove (5); a channel (6) is provided between the placement groove (4) and the groove (5); the channel (6) is connected to the placement groove (4) and the groove (5); a through-hole (7) is provided on the side wall of the large particle collector (102); the through-hole (7) is connected to the large particle collector (102); and the through-hole (7) has two states relative to the channel (6): connected and staggered; The monitoring unit comprises a first particle sensor (301), a second particle sensor (302) and a third particle sensor (303), wherein the first particle sensor (301) is located in a first filter cavity (106), and the first particle sensor (301) is connected to the first filter cavity (106), the second particle sensor (302) is located in a second filter cavity (108), and the second particle sensor (302) is connected to the second filter cavity (108), the third particle sensor (303) is located in a groove (5), and the third particle sensor (303) is connected to a base (201).

2. The automatic atmospheric particulate matter monitoring device according to claim 1 is characterized in that: A plurality of electric push rods (8) are arranged between the separation cylinder (101) and the cover body (104); the electric push rods (8) are connected to the separation cylinder (101); and the output ends of the electric push rods (8) are connected to the cover body (104).

3. The automatic atmospheric particulate matter monitoring device according to claim 1 is characterized in that: The base (201) is provided with a fastener (9), and the fastener (9) is connected to the base (201).

4. The automatic atmospheric particulate matter monitoring device according to claim 1 is characterized in that: A sealing member (10) is provided on the outer edge of the lower portion of the cover body (104), and the sealing member (10) is connected to the cover body (104).

5. The automatic atmospheric particulate matter monitoring device according to claim 1 is characterized in that: The first filter cavity (106) and the second filter cavity (108) are both provided with a bayonet (11), and a buckle (12) is provided on the outer edge of the filter membrane (109), and the buckle (12) matches the bayonet (11).

6. The automatic monitoring device for atmospheric particulate matter according to claim 1 is characterized in that: The height of the air inlet pipe (103) is greater than the height of the lower end of the first air outlet pipe (105).

7. The automatic atmospheric particulate matter monitoring device according to claim 2 is characterized in that: The base (201) is provided with a first gear (13), and the first gear (13) is located outside the groove (5), the first gear (13) is connected to the base (201), the inner side of the first gear (13) is detachably fixedly connected to the large particle collector (102), a second gear (14) is provided outside the first gear (13), the second gear (14) meshes with the first gear (13), a motor (15) is provided on the side of the second gear (14) away from the first gear (13), the motor (15) is connected to the base (201), and the output end of the motor (15) is connected to the second gear (14).

8. The automatic monitoring device for atmospheric particulate matter according to claim 3 is characterized in that: A control panel (16) is disposed on one side of the base (201), and the control panel (16) is connected to the base (201). The control panel (16) is electrically connected to the nitrogen generator (202), the first particle sensor (301), the second particle sensor (302), the third particle sensor (303), a plurality of electric push rods (8), and the motor (15).

9. The automatic atmospheric particulate matter monitoring device according to claim 8, characterized in that: The automatic atmospheric particulate matter monitoring device also includes a mobile terminal, which is electrically connected to the control panel (16).

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