Sampling device for monitoring air particles and use method thereof

Abstract

The invention discloses a sampling device for air particle monitoring and a using method thereof, and relates to the field of air detection.The sampling device for air particle monitoring comprises a support, the top end of the support is rotationally connected with a plurality of telescopic rods, and auxiliary assemblies are symmetrically and fixedly connected to the side walls of a sampling box; a collecting assembly is mounted in the sampling box, and a dust removing assembly is mounted in the sampling box. By arranging the auxiliary assembly, when air flow is high, particulate matter is dispersed along with wind and collection is affected, an electromagnet is powered on, one end of the electromagnet and the adjacent end of a permanent magnet generate like magnetic poles, a second wind shield is pushed to move under the action of magnetic repulsive force, and at the moment, a spring is in a stretched state; therefore, the contact area of the first wind shield and flowing air is enlarged, and when the contact area is enlarged, the number of air particles capable of being captured is correspondingly increased, so that the particles are more easily captured by the sampler, and the sampling representativeness is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air detection, and in particular to a sampling device for air particle monitoring and a use method thereof. Background Art

[0002] In order to ensure people's health and the sustainable development of the environment, environmental protection departments need to conduct environmental surveys. Environmental surveys include air testing, which requires the use of sampling devices for air particle monitoring.

[0003] A particle sampling device proposed by announcement number CN217786665U relates to the technical field of sampling devices, including a vertically arranged sampling tube, a plurality of air inlet holes evenly distributed on the peripheral wall of the sampling tube, a turntable rotatably provided at the upper end of the sampling tube, a plurality of guide vanes fixedly connected around the sampling tube on the lower surface of the turntable, air is introduced into the sampling tube by the rotation of the guide vanes, the lower end of the sampling tube is rotatably connected to the support tube, an outer tube is mounted outside the support tube, a guide ring is fixedly connected to the outer edge of the upper end of the outer tube, the guide ring is located below the guide vanes, and a material receiving bottom plate is fixedly connected between the lower end of the outer tube and the outer wall of the support tube. The device solves the problem that the device in the traditional technology cannot uniformly sample the particles in the surrounding air due to the limitation of wind direction and the orientation of the sampling device when sampling the particles in the air, thus affecting the uniformity of the particle sampling.

[0004] At present, when sampling, if it is necessary to conduct air particle detection at a location with strong air flow, the particles will be dispersed by the wind due to the strong wind, affecting the sampling; in addition, for the air particles that have been sampled, they are taken out of the sampling box. During the air particle content detection process, if the sampling box is bumped, the collected air particles will be scattered, affecting the detection; and there will be residual air particles adhering to the inner wall of the filter and the sampling box, which will affect the next use on the one hand, and cause detection errors on the other hand.

[0005] In view of the above problems, a sampling device for air particle monitoring and a method for using the same are proposed. Summary of the invention

[0006] The object of the present invention is to provide a sampling device for air particle monitoring and a method of using the same. By using the device to work, the problem of sampling being affected when detecting at places with strong air flow in the above background is solved. In addition, the sampled air particles are easily scattered when taken out, making them inconvenient to collect, and there will be residual air particles inside the filter and the sampling box.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a sampling device for monitoring air particles, comprising a bracket, a plurality of telescopic rods rotatably connected to the top of the bracket, one end of the plurality of telescopic rods being rotatably connected to a connecting seat, a sampling box being fixedly connected to the bottom end of the connecting seat, a collecting tube being symmetrically fixedly connected to the side wall of the sampling box, a mounting ring being fixedly connected inside each of the collecting tubes, a vortex impeller being rotatably installed inside the mounting ring, a filter being symmetrically fixedly connected inside the collecting tube, an auxiliary component being symmetrically fixedly connected to the side wall of the sampling box, a collecting component being installed inside the sampling box, and a dust removal component being installed inside the sampling box.

[0008] Furthermore, the auxiliary component includes a plurality of first wind shields, which are symmetrically fixedly connected to the side walls of the sampling box, each of the side walls of the first wind shields is provided with a slide groove, and the inner wall of the slide groove is symmetrically fixedly connected with an electromagnet.

[0009] Furthermore, the inner wall of the slide groove is symmetrically fixedly connected with springs, the two springs are commonly fixedly connected with a second wind shield, the second wind shield is slidably connected to the inside of the slide groove, the side wall of the second wind shield is fixedly connected with a permanent magnet, the side wall of the first wind shield is fixedly connected with a scraper, and the scraper is in contact with the side wall of the second wind shield.

[0010] Furthermore, the collecting component includes a protective box, which is fixedly connected to the bottom of the sampling box. The bottom of the sampling box is fixedly connected to a fixed plate, which is an L-shaped structure. The bottom of the fixed plate is fixedly connected to a motor, and the output end of the motor is fixedly connected to a connecting shaft.

[0011] Furthermore, one end of the connecting shaft passes through the fixed plate and the bottom wall of the sampling box in sequence, the side wall of the connecting shaft is fixedly connected to the first synchronous wheel, and one side wall of the sampling box is symmetrically passed through and rotatably connected to the first reciprocating screw, one end of each of the first reciprocating screws is rotatably connected to the top wall of the sampling box, and the other end of the side wall is fixedly connected to the second synchronous wheel.

[0012] Furthermore, the two second synchronous wheels are connected to the first synchronous wheel through a synchronous belt, and a sliding rod is symmetrically fixedly connected inside the sampling box. Each side wall of the first reciprocating screw is threadedly connected with a slide plate, and one end of the slide plate is slidably connected to the sliding rod.

[0013] Furthermore, the side walls of the slide plate are symmetrically fixedly connected with friction blocks, the inner walls of the sampling box are symmetrically fixedly connected with dust collecting plates, each of the friction blocks slides against an adjacent dust collecting plate, each of the side walls of the slide plate is fixedly connected with a cleaning plate, and the side walls of the cleaning plate are in contact with the filter.

[0014] Furthermore, the dust removal assembly includes a second reciprocating screw, one end of which is fixedly connected to the connecting shaft, and the other end is rotatably connected to the top wall of the sampling box, the bottom wall of the sampling box is symmetrically fixedly connected to a limit rod, and the side wall of the second reciprocating screw is threadedly connected with a sliding sleeve.

[0015] Furthermore, each of the limit rods is slidably connected to the sliding sleeve, the side walls of the sliding sleeve are symmetrically fixedly connected with a mounting plate, each side wall of the mounting plate is fixedly connected with a cleaning brush, and each cleaning brush is in contact with an adjacent side wall of the filter.

[0016] A method for using a sampling device for air particle monitoring comprises the following steps:

[0017] S1: By controlling the telescopic rod, the sampling box is moved down to the position where air particle sampling is required, and by measuring the wind direction in advance, the collecting tube on one side of the sampling box is aligned with the wind direction, so that the wind direction can enter the sampling box along the collecting tube, and the particles inside the air are filtered through the filter, so that the particles inside the air are attached to the filter, thereby sampling and collecting air particles;

[0018] S2: When the air flow is strong and the particles are dispersed by the wind, affecting the collection, the electromagnet is energized so that one end of the electromagnet and the adjacent end of the permanent magnet generate the same magnetic pole. Under the action of magnetic repulsion, the second windshield is pushed to move. At this time, the spring is in a stretched state, thereby expanding the contact area between the first windshield and the flowing air; when the air particle detection is completed, the electromagnet is powered off, so that the magnetic force between the electromagnet and the permanent magnet is lost, and under the elastic action of the spring, the second windshield is driven to reset and move;

[0019] S3: The motor drives the connecting shaft and the first synchronous wheel to rotate, and the synchronous belt drives the second synchronous wheels to rotate, so that the first reciprocating screw rotates synchronously. The first reciprocating screw rotates, and the slide plate is limited to slide by the slide bar, so that the slide plate moves up and down. During the movement, the friction block and the dust collecting plate are continuously rubbed, so that the dust collecting plate generates static electricity, and the cleaning plate on the side wall of the slide plate scrapes the filter screen, so that the air particles collected on the filter screen float up, and the static electricity generated on the dust collecting plate is electrostatically adsorbed on the air particles;

[0020] S4: During the operation of the motor, the second reciprocating screw is driven to rotate through the connecting shaft, and the second reciprocating screw is rotated, and under the cooperation of the limiting rod, the sliding sleeve is made to reciprocate up and down. During the reciprocating movement of the sliding sleeve, the mounting plate and the cleaning brush are driven to further clean the filter, wherein the cleaning brush is in contact with the filter, so that the cleaning brush will further clean the air particles remaining on the filter during the reciprocating movement, and further adsorb the remaining air particles through the static electricity generated by the continuous friction of the dust collecting plate.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] By setting up an auxiliary component, when there is a strong air flow and the particles are dispersed by the wind, affecting the collection, the electromagnet is energized so that one end of the electromagnet generates a like magnetic pole with the adjacent end of the permanent magnet. Under the action of the magnetic repulsion, the second windshield is pushed to move. At this time, the spring is in a stretched state, thereby expanding the contact area between the first windshield and the flowing air. When the contact area is expanded, the number of air particles that can be captured increases accordingly, making the particles easier to be captured by the sampler, thereby improving the representativeness of the sampling; by setting up a collection component, when it is necessary to take out the sampled air particles inside the sampling box, the motor is started, and the motor works to drive the connecting shaft and the first windshield to move. A synchronous wheel rotates, and drives multiple second synchronous wheels to rotate through a synchronous belt, so that the first reciprocating screw rotates synchronously, and the first reciprocating screw rotates, and the slide plate is limited and slid by the slide rod, so that the slide plate moves up and down reciprocatingly. During the movement, the friction block and the dust collecting plate are continuously rubbed, so that the dust collecting plate generates static electricity, and the cleaning plate on the side wall of the slide plate scrapes the filter screen, so that the air particles collected on the filter screen float up, and the static electricity generated on the dust collecting plate is used to electrostatically adsorb the air particles, so that the air particles will not be constantly scattered during the sampling process, affecting the removal and detection, thereby improving the practicality of the device;

[0023] By setting up a dust removal component, the second reciprocating screw is driven to rotate through the connecting shaft, and the second reciprocating screw is rotated, and under the cooperation of the limiting rod, the sliding sleeve is made to reciprocate up and down. During the up and down reciprocating movement of the sliding sleeve, the mounting plate and the cleaning brush are driven to further clean the filter, wherein the cleaning brush is in contact with the filter, so that the cleaning brush will further clean the air particles remaining on the filter during the reciprocating movement, and further adsorb the remaining air particles through the static electricity generated by the continuous friction of the dust collecting plate, thereby avoiding some air particles remaining on the filter, ensuring the maximum collection of the sampled air particles, and improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 is a side view of the present invention;

[0026] Figure 3 It is a structural schematic diagram of the sampling box in the present invention;

[0027] Figure 4 is a cross-sectional view of the sampling box of the present invention;

[0028] Figure 5 is a cross-sectional view of the auxiliary component in the present invention;

[0029] Figure 6 It is a partial structural schematic diagram of the auxiliary components in the present invention;

[0030] Figure 7 for Figure 5 A partial enlarged schematic diagram of part B;

[0031] Figure 8 It is a schematic diagram of the structure of the collection component and the dust removal component of the present invention;

[0032] Fig. 9 It is a schematic diagram of the structure of the collection component in the present invention;

[0033] Fig.10 for Figure 4 A partial enlarged schematic diagram of part A;

[0034] Fig.11 It is a schematic diagram of the structure of the dust removal component in the present invention.

[0035] In the figure: 1. bracket; 11. telescopic rod; 12. connecting seat; 2. sampling box; 21. collecting tube; 22. mounting ring; 23. vortex impeller; 24. filter; 3. auxiliary component; 31. first wind deflector; 32. slide groove; 33. second wind deflector; 34. scraper; 35. spring; 36. electromagnet; 37. permanent magnet; 4. collecting component; 41. protective box; 42. fixing plate; 43. motor; 44. connecting shaft; 45. first synchronous wheel; 46. first reciprocating screw; 47. second synchronous wheel; 48. sliding rod; 49. dust collecting plate; 410. sliding plate; 411. friction block; 412. cleaning plate; 413. synchronous belt; 5. dust removal component; 51. second reciprocating screw; 52. sliding sleeve; 53. limit rod; 54. mounting plate; 55. cleaning brush. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] In order to solve the technical problem of air particle detection in the process of environmental monitoring, if it is necessary to detect air particles in the location with strong air flow, the particles will be dispersed by the wind due to the strong wind, affecting the sampling, such as Figure 1 - Figure 7 As shown, the following preferred technical solutions are provided:

[0038] A sampling device for air particle monitoring comprises a bracket 1, wherein the top of the bracket 1 is rotatably connected to a plurality of telescopic rods 11, one end of the plurality of telescopic rods 11 is rotatably connected to a connecting seat 12, the bottom end of the connecting seat 12 is fixedly connected to a sampling box 2, the side wall of the sampling box 2 is symmetrically fixedly connected to a collecting cylinder 21, each collecting cylinder 21 is fixedly connected to a mounting ring 22, a vortex impeller 23 is rotatably installed inside the mounting ring 22, a filter screen 24 is symmetrically fixedly connected to the inside of the collecting cylinder 21, an auxiliary component 3 is symmetrically fixedly connected to the side wall of the sampling box 2, and a filter screen 24 is symmetrically fixedly connected to the inside of the collecting cylinder 21. By setting up the auxiliary component 3, when the air flow is strong and the particulate matter is dispersed by the wind, affecting the collection, the electromagnet 36 is energized so that one end of the electromagnet 36 and the adjacent end of the permanent magnet 37 generate the same magnetic pole. Under the action of the magnetic repulsion, the second wind shield 33 is pushed to move. At this time, the spring 35 is in a stretched state, thereby expanding the contact area between the first wind shield 31 and the flowing air. When the contact area is expanded, the number of air particles that can be captured increases accordingly, making it easier for the particles to be captured by the sampler, thereby improving the representativeness of the sampling.

[0039] A collecting component 4 is installed inside the sampling box 2. By setting the collecting component 4, when it is necessary to take out the air particles sampled inside the sampling box 2, the motor 43 is started. The motor 43 works to drive the connecting shaft 44 and the first synchronous wheel 45 to rotate, and drives multiple second synchronous wheels 47 to rotate through the synchronous belt 413, so that the first reciprocating screw 46 rotates synchronously. The first reciprocating screw 46 rotates, and the slide plate 410 is limited and slid by the slide bar 48, so that the slide plate 410 moves up and down. During the movement, the friction block 411 is continuously rubbed with the dust collecting plate 49, so that the dust collecting plate 49 generates static electricity, and the cleaning plate 412 on the side wall of the slide plate 410 is used to scrape the filter 24, so that the air particles collected on the filter 24 float up, and the static electricity generated on the dust collecting plate 49 is used to electrostatically adsorb the air particles, so that the air particles will not continue to float around during the sampling process, affecting the removal and detection, thereby improving the practicality of the device.

[0040] A dust removal component 5 is installed inside the sampling box 2. By setting up the dust removal component 5, the second reciprocating screw 51 is driven to rotate through the connecting shaft 44. The second reciprocating screw 51 is rotated, and under the cooperation of the limiting rod 53, the sliding sleeve 52 is made to reciprocate up and down. During the up and down reciprocating movement of the sliding sleeve 52, the mounting plate 54 and the cleaning brush 55 are driven to further clean the filter 24, wherein the cleaning brush 55 is in contact with the filter 24, so that the cleaning brush 55 will further clean the air particles remaining on the filter 24 during the reciprocating movement, and further adsorb the remaining air particles through the static electricity generated by the continuous friction of the dust collecting plate 49, so as to avoid some air particles remaining on the filter 24, thereby ensuring that the sampled air particles are collected to the greatest extent, thereby improving the detection accuracy.

[0041] The auxiliary component 3 includes a plurality of first wind shields 31 symmetrically fixedly connected to the side wall of the sampling box 2 , each first wind shield 31 has a side wall with a slide groove 32 , and an electromagnet 36 is symmetrically fixedly connected to the inner wall of the slide groove 32 .

[0042] The inner wall of the slide groove 32 is symmetrically fixedly connected with springs 35, and the two springs 35 are commonly fixedly connected with the second wind deflector 33. The second wind deflector 33 is slidably connected to the inside of the slide groove 32. The side wall of the second wind deflector 33 is fixedly connected with a permanent magnet 37. The side wall of the first wind deflector 31 is fixedly connected with a scraper 34, and the scraper 34 is in contact with the side wall of the second wind deflector 33.

[0043] In this solution: when in use, firstly, the sampling box 2 is moved down to the position where air particle sampling is required by controlling the telescopic rod 11, and the collecting tube 21 on one side of the sampling box 2 is kept consistent with the wind direction by measuring the wind direction in advance, so that the wind direction can enter the interior of the sampling box 2 along the collecting tube 21, and the internal air particles are filtered through the filter 24, so that the internal air particles adhere to the filter 24, thereby sampling and collecting air particles; when the air flow is strong and the particles are dispersed with the wind, affecting the collection, the electromagnet 36 is energized so that one end of the electromagnet 36 and the adjacent end of the permanent magnet 37 generate the same magnetic pole, and under the action of the magnetic repulsion, the second windshield 33 is pushed to move, and the spring 35 is in a stretched state at this time, thereby expanding the contact area between the first windshield 31 and the flowing air. When the contact surface is expanded, the number of air particles that can be captured increases accordingly, making the particles easier to be captured by the sampler, thereby improving the representativeness of the sampling;

[0044] When the air particle detection is completed, the electromagnet 36 is powered off, so that the electromagnet 36 and the permanent magnet 37 lose magnetic force, and under the elastic action of the spring 35, the second wind shield 33 is driven to reset and move, thereby reducing the occupied area and facilitating use. In the process of resetting the second wind shield 33, the windshield surface of the second wind shield 33 contacts the scraper 34, and the scraper 34 is used to scrape off the air particles remaining on the second wind shield 33. The subsequent staff will process the residual particles on the scraper 34, and there is no need to clean the entire second wind shield 33, so as to avoid residual air particles from entering the chute 32 and accumulating for a long time, affecting the normal movement of the second wind shield 33, thereby improving the use effect of the device.

[0045] In order to solve the technical problem that the air particles collected are taken out from the sampling box 2 and the air particle content is detected, if the sampling box 2 is bumped, the collected air particles will be scattered, affecting the detection, such as Figure 8 - Fig.10 As shown, the following preferred technical solutions are provided:

[0046] The collecting assembly 4 includes a protective box 41, which is fixedly connected to the bottom end of the sampling box 2. The bottom end of the sampling box 2 is fixedly connected to a fixing plate 42, which is an L-shaped structure. The bottom end of the fixing plate 42 is fixedly connected to a motor 43, and the output end of the motor 43 is fixedly connected to a connecting shaft 44.

[0047] One end of the connecting shaft 44 passes through the fixed plate 42 and the bottom wall of the sampling box 2 in sequence, and the side wall of the connecting shaft 44 is fixedly connected to the first synchronous wheel 45. A first reciprocating screw 46 is symmetrically passed through the side wall of one side of the sampling box 2 and is rotatably connected. One end of each first reciprocating screw 46 is rotatably connected to the inner top wall of the sampling box 2, and the other end of the side wall is fixedly connected to the second synchronous wheel 47.

[0048] The two second synchronous wheels 47 are connected to the first synchronous wheel 45 through a synchronous belt 413. The inside of the sampling box 2 is symmetrically fixed with a slide rod 48. The side wall of each first reciprocating screw 46 is threadedly connected with a slide plate 410, and one end of the slide plate 410 is slidably connected to the slide rod 48.

[0049] The side walls of the slide plate 410 are symmetrically fixedly connected with friction blocks 411, and the inner walls of the sampling box 2 are symmetrically fixedly connected with dust collecting plates 49. Each friction block 411 slides against and slides against the adjacent dust collecting plate 49. The side walls of each slide plate 410 are fixedly connected with a cleaning plate 412, and the side walls of the cleaning plate 412 are in contact with the filter screen 24.

[0050] In this scheme: when it is necessary to take out the air particles sampled inside the sampling box 2, start the motor 43, and the motor 43 works to drive the connecting shaft 44 and the first synchronous wheel 45 to rotate, and the synchronous belt 413 drives multiple second synchronous wheels 47 to rotate, so that the first reciprocating screw 46 rotates synchronously, and the first reciprocating screw 46 is rotated, and the slide plate 410 is limited by the slide rod 48, so that the slide plate 410 moves up and down reciprocatingly. During the movement, the friction block 411 is continuously rubbed with the dust collecting plate 49, so that the dust collecting plate 49 generates static electricity, and the cleaning plate 412 on the side wall of the slide plate 410 is used to scrape the filter 24, so that the air particles collected on the filter 24 float up, and the static electricity generated on the dust collecting plate 49 is used to electrostatically adsorb the air particles, so that the air particles will not continue to float around during the sampling process, affecting the removal and detection, thereby improving the practicality of the device.

[0051] In order to solve the problem that the filter 24 and the inner wall of the sampling box 2 are adhered with residual air particles, which affects the next use and causes detection errors, such as Figure 4 and Fig.10 - Fig.11 As shown, the following preferred technical solutions are provided:

[0052] The dust removal assembly 5 includes a second reciprocating screw 51, one end of which is fixedly connected to the connecting shaft 44, and the other end is rotatably connected to the inner top wall of the sampling box 2. The inner bottom wall of the sampling box 2 is symmetrically fixedly connected with a limiting rod 53, and the side wall of the second reciprocating screw 51 is threadedly connected with a sliding sleeve 52.

[0053] Each limiting rod 53 is slidably connected to the sliding sleeve 52 , and the side wall of the sliding sleeve 52 is symmetrically fixedly connected to the mounting plate 54 . The side wall of each mounting plate 54 is fixedly connected to a cleaning brush 55 , and each cleaning brush 55 is in contact with the adjacent side wall of the filter screen 24 .

[0054] In this solution: during the process of removing air particles, if there are residual air particles on the filter 24, the number of particles actually detected will be reduced, thereby causing the detection result to be low. To avoid this situation, during the operation of the motor 43, the second reciprocating screw 51 is driven to rotate through the connecting shaft 44. The second reciprocating screw 51 is rotated, and under the cooperation of the limiting rod 53, the sliding sleeve 52 is made to reciprocate up and down. During the reciprocating movement of the sliding sleeve 52, the mounting plate 54 and the cleaning brush 55 are driven to further clean the filter 24, wherein the cleaning brush 55 is in contact with the filter 24, so that the cleaning brush 55 will further clean the air particles remaining on the filter 24 during the reciprocating movement, and further adsorb the residual air particles through the static electricity generated by the continuous friction of the dust collecting plate 49, thereby avoiding a part of the air particles remaining on the filter 24 and the sampling box 2, ensuring the maximum collection of the sampled air particles and improving the detection accuracy.

[0055] A method for using a sampling device for air particle monitoring comprises the following steps:

[0056] S1: By controlling the telescopic rod 11, the sampling box 2 is moved down to the position where air particle sampling is required, and by measuring the wind direction in advance, the collecting tube 21 on one side of the sampling box 2 is kept consistent with the wind direction, so that the wind direction can enter the interior of the sampling box 2 along the collecting tube 21, and the particles inside the air are filtered through the filter 24, so that the particles inside the air are attached to the filter 24, thereby sampling and collecting air particles;

[0057] S2: When the air flow is strong and the particles are dispersed by the wind, affecting the collection, the electromagnet 36 is energized, so that one end of the electromagnet 36 and the adjacent end of the permanent magnet 37 generate the same magnetic pole, and under the action of the magnetic repulsion, the second windshield 33 is pushed to move, and the spring 35 is in a stretched state at this time, thereby expanding the contact area between the first windshield 31 and the flowing air; when the air particle detection is completed, the electromagnet 36 is de-energized, so that the magnetic force between the electromagnet 36 and the permanent magnet 37 is lost, and under the elastic action of the spring 35, the second windshield 33 is driven to reset;

[0058] S3: The motor 43 works to drive the connecting shaft 44 and the first synchronous wheel 45 to rotate, and the synchronous belt 413 drives the multiple second synchronous wheels 47 to rotate, so that the first reciprocating screw 46 rotates synchronously, and the first reciprocating screw 46 rotates, and the slide plate 410 is limited and slid by the slide bar 48, so that the slide plate 410 moves up and down reciprocatingly. During the movement, the friction block 411 and the dust collecting plate 49 are continuously rubbed, so that the dust collecting plate 49 generates static electricity, and the cleaning plate 412 on the side wall of the slide plate 410 scrapes the filter 24, so that the air particles collected on the filter 24 float up, and the static electricity generated on the dust collecting plate 49 electrostatically adsorbs the air particles;

[0059] S4: During the operation of the motor 43, the second reciprocating screw 51 is driven to rotate through the connecting shaft 44. The second reciprocating screw 51 is rotated, and under the cooperation of the limiting rod 53, the sleeve 52 is made to reciprocate up and down. During the reciprocating movement of the sleeve 52, the mounting plate 54 and the cleaning brush 55 are driven to further clean the filter 24, wherein the cleaning brush 55 is in contact with the filter 24, so that the cleaning brush 55 will further clean the air particles remaining on the filter 24 during the reciprocating movement, and further adsorb the remaining air particles through the static electricity generated by the continuous friction of the dust collecting plate 49.

[0060] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0061] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sampling device for air particle monitoring, comprising a bracket (1), characterized in that: The top of the bracket (1) is rotatably connected to a plurality of telescopic rods (11), one end of the plurality of telescopic rods (11) is rotatably connected to a connecting seat (12), the bottom end of the connecting seat (12) is fixedly connected to a sampling box (2), the side wall of the sampling box (2) is symmetrically fixedly connected to a collecting cylinder (21), each collecting cylinder (21) is fixedly connected to a mounting ring (22), a vortex impeller (23) is rotatably mounted inside the mounting ring (22), a filter screen (24) is symmetrically fixedly connected inside the collecting cylinder (21), an auxiliary component (3) is symmetrically fixedly connected to the side wall of the sampling box (2), a collecting component (4) is mounted inside the sampling box (2), and a dust removal component (5) is mounted inside the sampling box (2).

2. The air particle monitoring sampling device according to claim 1, characterized in that: The auxiliary component (3) includes a plurality of first wind shields (31), wherein the plurality of first wind shields (31) are symmetrically fixedly connected to the side wall of the sampling box (2), each side wall of the first wind shield (31) is provided with a slide groove (32), and the inner wall of the slide groove (32) is symmetrically fixedly connected with an electromagnet (36).

3. The air particle monitoring sampling device according to claim 2, characterized in that: The inner wall of the slide groove (32) is symmetrically fixedly connected with a spring (35), and the two springs (35) are commonly fixedly connected with a second wind shield (33), and the second wind shield (33) is slidably connected to the inside of the slide groove (32), and the side wall of the second wind shield (33) is fixedly connected with a permanent magnet (37), and the side wall of the first wind shield (31) is fixedly connected with a scraper (34), and the scraper (34) is in contact with the side wall of the second wind shield (33).

4. The air particle monitoring sampling device according to claim 3 is characterized in that: The collecting assembly (4) comprises a protective box (41) which is fixedly connected to the bottom end of a sampling box (2); the bottom end of the sampling box (2) is fixedly connected to a fixing plate (42); the fixing plate (42) is an L-shaped structure; the bottom end of the fixing plate (42) is fixedly connected to a motor (43); the output end of the motor (43) is fixedly connected to a connecting shaft (44).

5. The air particle monitoring sampling device according to claim 4, characterized in that: One end of the connecting shaft (44) passes through the fixed plate (42) and the bottom wall of the sampling box (2) in sequence, and the side wall of the connecting shaft (44) is fixedly connected to a first synchronous wheel (45). A first reciprocating screw (46) is symmetrically passed through and rotatably connected to a side wall of one side of the sampling box (2). One end of each of the first reciprocating screws (46) is rotatably connected to the inner top wall of the sampling box (2), and the other end of the side wall is fixedly connected to a second synchronous wheel (47).

6. The sampling device for air particle monitoring according to claim 5, characterized in that: The two second synchronous wheels (47) are connected to the first synchronous wheel (45) through a synchronous belt (413), and a slide rod (48) is symmetrically fixedly connected inside the sampling box (2). Each side wall of the first reciprocating screw (46) is threadedly connected to a slide plate (410), and one end of the slide plate (410) is slidably connected to the slide rod (48).

7. The sampling device for air particle monitoring according to claim 6, characterized in that: The side walls of the slide plate (410) are symmetrically fixedly connected with friction blocks (411), and the inner side walls of the sampling box (2) are symmetrically fixedly connected with dust collecting plates (49), each of the friction blocks (411) slides against an adjacent dust collecting plate (49), and each side wall of the slide plate (410) is fixedly connected with a cleaning plate (412), and the side wall of the cleaning plate (412) is in contact with the filter screen (24).

8. The sampling device for air particle monitoring according to claim 7, characterized in that: The dust removal assembly (5) comprises a second reciprocating screw (51), one end of the second reciprocating screw (51) is fixedly connected to the connecting shaft (44), and the other end is rotatably connected to the inner top wall of the sampling box (2), the inner bottom wall of the sampling box (2) is symmetrically fixedly connected to a limit rod (53), and the side wall of the second reciprocating screw (51) is threadedly connected to a sliding sleeve (52).

9. The air particle monitoring sampling device according to claim 8, characterized in that: Each of the limiting rods (53) is slidably connected to the sliding sleeve (52); the side wall of the sliding sleeve (52) is symmetrically fixedly connected with a mounting plate (54); each side wall of the mounting plate (54) is fixedly connected with a cleaning brush (55); and each cleaning brush (55) is in contact with the side wall of an adjacent filter screen (24).

10. The method for using the sampling device for air particle monitoring according to claim 9, characterized in that: The following steps are involved: S1: by controlling the telescopic rod (11), the sampling box (2) is moved downward to a position where air particle sampling is required, and by measuring the wind direction in advance, the collecting tube (21) on one side of the sampling box (2) is aligned with the wind direction, so that the wind direction can enter the interior of the sampling box (2) along the collecting tube (21), and the air particles are filtered through the filter (24), so that the air particles adhere to the filter (24), thereby sampling and collecting air particles; S2: When the air flow is strong and the particles are dispersed by the wind, affecting the collection, the electromagnet (36) is energized so that one end of the electromagnet (36) and the adjacent end of the permanent magnet (37) generate the same magnetic pole. Under the action of the magnetic repulsion, the second windshield (33) is pushed to move. At this time, the spring (35) is in a stretched state, thereby expanding the contact area between the first windshield (31) and the flowing air; when the air particle detection is completed, the electromagnet (36) is de-energized so that the magnetic force between the electromagnet (36) and the permanent magnet (37) is lost. Under the elastic action of the spring (35), the second windshield (33) is driven to reset and move; S3: The motor (43) drives the connecting shaft (44) and the first synchronous wheel (45) to rotate, and drives the plurality of second synchronous wheels (47) to rotate through the synchronous belt (413), so that the first reciprocating screw (46) rotates synchronously, and the slide plate (410) is limitedly slid by the slide bar (48) so that the slide plate (410) moves up and down reciprocatingly. During the movement, the friction block (411) and the dust collecting plate (49) are continuously rubbed, so that the dust collecting plate (49) generates static electricity, and the cleaning plate (412) on the side wall of the slide plate (410) scrapes the filter screen (24), so that the air particles collected on the filter screen (24) float up, and the static electricity generated on the dust collecting plate (49) is used to electrostatically adsorb the air particles; S4: During the operation of the motor (43), the second reciprocating screw (51) is driven to rotate through the connecting shaft (44). The second reciprocating screw (51) is rotated, and under the cooperation of the limiting rod (53), the sliding sleeve (52) is made to reciprocate up and down. During the reciprocating movement of the sliding sleeve (52), the mounting plate (54) and the cleaning brush (55) are driven to further clean the filter (24). The cleaning brush (55) is in contact with the filter (24), so that the cleaning brush (55) will further clean the air particles remaining on the filter (24) during the reciprocating movement, and further adsorb the remaining air particles through the static electricity generated by the continuous friction of the dust collecting plate (49).

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