Adjustable graded aerosol sampler

Abstract

The utility model relates to an adjustable graded aerosol sampler, which belongs to the technical field of aerosol samplers, and comprises an air inlet adjusting member, a graded sampling member and a sample bottle, one end of the upper side of the graded sampling member is provided with an exhaust pipe, one end of the exhaust pipe is provided with an exhaust pump, the graded sampling member comprises a graded pipe, and the graded pipe is provided with an air inlet. A first-stage filtering diaphragm is arranged at one end of the interior of the grading pipe, and a second-stage filtering diaphragm is arranged at the other end of the interior of the grading pipe. The size of the air inlet amount is adjusted through the air inlet adjusting component, the adaptation degree of sampling requirements is improved, the sampling precision is facilitated, aerosol is filtered in a classified mode through a first-stage filtering diaphragm and a second-stage filtering diaphragm, the classified aerosol is guided out through a first discharging hopper and a second discharging hopper, the aerosol taking-out convenience is improved, and the sampling efficiency is improved. The aerosol is collected through a sample bottle, and the graded aerosol is stored without classification.

Description

Technical Field

[0001] This invention belongs to the technical field of aerosol samplers, specifically relating to an adjustable graded aerosol sampler. Background Technology

[0002] An aerosol sampler is a device used to collect suspended particulate matter in the air. It is widely used in environmental monitoring, occupational health, biosafety, public health and other fields. Its core function is to capture and collect tiny particles in the air through a specific mechanism for subsequent analysis. For example, Chinese patent discloses an atmospheric aerosol graded sampler (publication number CN203572695U), which effectively improves the service life of the device; it is a compact, reasonable, efficient and environmentally adaptable atmospheric aerosol graded sampler.

[0003] However, existing publicly available aerosol grading samplers still have some shortcomings in practical applications that need improvement, such as:

[0004] 1. The intake volume is fixed, which has low adaptability to sampling needs and is not conducive to sampling accuracy.

[0005] 2. The collected samples are located inside the sampler, making them inconvenient to remove and hindering ease of use. Furthermore, the graded aerosols cannot be classified and preserved, which is detrimental to subsequent monitoring operations.

[0006] Therefore, those skilled in the art have provided an adjustable graded aerosol sampler to address the problems mentioned in the background section. Utility Model Content

[0007] The purpose of this invention is to provide an adjustable, graded aerosol sampler that can solve the problems mentioned in the background art.

[0008] The specific technical solution adopted in this utility model is as follows:

[0009] An adjustable graded aerosol sampler includes an air inlet regulating component, a graded sampling component, and a sample bottle. The graded sampling component is located on one side of the air inlet regulating component, and the sample bottle is located on the lower side of the graded sampling component. An air extraction pipe is provided at one end of the upper side of the graded sampling component, and an air extraction pump is installed at one end of the air extraction pipe.

[0010] The graded sampling component includes a graded tube. A primary filter membrane is installed at one end of the graded tube, and a secondary filter membrane is installed at the other end of the graded tube. A first hopper is installed on the lower side of the graded tube near the primary filter membrane, and a second hopper is installed on the lower side of the graded tube near the secondary filter membrane. A rotating rod is installed inside the graded tube. A first scraper is installed at one end of the outer side of the rotating rod, and a second scraper is installed at the other end of the outer side of the rotating rod. A drive motor is installed on one side of the graded tube corresponding to the position of the rotating rod.

[0011] The present invention is further configured such that: the intake regulating component includes an regulating box, the inside of the regulating box is provided with a track, valve plates are provided at both ends of the track, a filter screen is provided on one side of the regulating box, mounting brackets are provided on both sides of the regulating box, a through-type lead screw motor is mounted on the outside of the mounting bracket, a lead screw body is provided inside the through-type lead screw motor, and a guide rod is provided at the outer end of the mounting bracket.

[0012] The present invention is further configured such that: the output end of the air intake regulating component is connected to the input end of the classifying tube, the output end of the classifying tube is connected to the input end of the suction tube, the output end of the suction tube is connected to the input end of the suction pump, the lower end of the classifying tube is connected to the upper end of the sample bottle through the first feeding hopper, and the lower end of the classifying tube is connected to the upper end of the sample bottle through the second feeding hopper.

[0013] The present invention is further configured such that: the first scraper is rotated to one side of the primary filter membrane via a rotating rod, the second scraper is rotated to one side of the secondary filter membrane via a rotating rod, the rotating rod is rotated to an internal position of the primary and secondary filter membranes, and the rotating rod is rotated to an internal position of the grading tube via a drive motor.

[0014] The present invention is further configured such that the output end of the regulating box is connected to the input end of the classifier tube, and the valve plate slides at the internal position of the track.

[0015] The present invention is further configured such that: the outer end of the lead screw body slides at the outer end position of the mounting bracket; the lead screw body slides at the outer end position of the mounting bracket via a through-type lead screw motor; the inner end of the lead screw body is fixed at the outer side position of the valve plate; the outer end of the guide rod slides at the outer end position of the mounting bracket; and the inner end of the guide rod is fixed at the outer side position of the valve plate.

[0016] The technical effects achieved by this utility model are as follows:

[0017] This utility model discloses an adjustable graded aerosol sampler. By adjusting the air intake volume through an air intake regulating component, the sampler can be adapted to different sampling needs, thereby improving sampling accuracy. The air intake regulating component also filters out insects and debris, ensuring sample purity.

[0018] This utility model discloses an adjustable graded aerosol sampler that filters aerosols through a primary and secondary filtration membranes. The graded aerosols are then discharged through a first and second hopper, respectively, improving the ease of aerosol removal and usability. The sample is collected in sample bottles, and the graded aerosols are stored separately, which is beneficial for subsequent monitoring operations. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this practical application;

[0020] Figure 2 This is a practical perspective drawing;

[0021] Figure 3 This is a perspective view of the graded sampling component in this practical application;

[0022] Figure 4 This is a perspective view of the intake adjustment component in this utility model.

[0023] In the diagram: 1. Air intake regulating component; 2. Graded sampling component; 3. Sample bottle; 4. Suction pipe; 5. Suction pump; 6. Grader pipe; 7. Primary filter membrane; 8. Secondary filter membrane; 9. First hopper; 10. Second hopper; 11. Rotating rod; 12. First scraper; 13. Second scraper; 14. Drive motor; 15. Adjusting box; 16. Track; 17. Valve plate; 18. Filter screen; 19. Mounting bracket; 20. Through-type lead screw motor; 21. Lead screw body; 22. Guide rod; Detailed Implementation

[0024] To make the purpose and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific implementations of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0025] like Figure 1-4As shown, an adjustable staged aerosol sampler includes an air inlet regulating component 1, a staged sampling component 2, and a sample bottle 3. The staged sampling component 2 is located on one side of the air inlet regulating component 1, and the sample bottle 3 is located below the staged sampling component 2. An air extraction pipe 4 is provided at one end of the upper side of the staged sampling component 2, and an air extraction pump 5 is installed at one end of the air extraction pipe 4. The staged sampling component 2 includes a staged tube 6. A primary filter membrane 7 is provided at one end of the interior of the staged tube 6, and a secondary filter membrane 8 is provided at the other end of the interior of the staged tube 6. A first feeding device is provided on the lower side of the staged tube 6 near the primary filter membrane 7. A second hopper 10 is located on the lower side of the grading tube 6 near the secondary filter membrane 8. A rotating rod 11 is installed inside the grading tube 6. A first scraper 12 is located at one end of the outer side of the rotating rod 11, and a second scraper 13 is located at the other end. A drive motor 14 is installed on one side of the grading tube 6 corresponding to the rotating rod 11. The output end of the air inlet regulating component 1 is connected to the input end of the grading tube 6. The output end of the grading tube 6 is connected to the input end of the suction pipe 4. The output end of the suction pipe 4 is connected to the input end of the suction pump 5. The lower end of the grading tube 6 is connected to the upper end of the sample bottle 3 via the first hopper 9. The lower end of the grading tube 6 is connected to the upper end of the sample bottle 3 via the second feeding hopper 10. The first scraper 12 rotates to one side of the primary filter membrane 7 via the rotating rod 11, and the second scraper 13 rotates to one side of the secondary filter membrane 8 via the rotating rod 11. The rotating rod 11 rotates to the inside of the primary filter membrane 7 and the secondary filter membrane 8. The rotating rod 11 rotates to the inside of the grading tube 6 via the drive motor 14. First, the air intake size of the air intake regulating component 1 is adjusted according to the requirements. Then, the suction pump 5 operates to draw air into the interior of the grading tube 6 through the suction pipe 4, and the gas enters the interior of the air intake regulating component 1. Adjustment component 1 filters mosquitoes and debris. The filtered gas enters the interior of the grading tube 6. The primary filter membrane 7 filters the suspended particles in the air. The filtered material enters the interior of the corresponding sample bottle 3 through the first feed hopper 9. The secondary filter membrane 8 filters the suspended particles in the air. The filtered material enters the interior of the corresponding sample bottle 3 through the second feed hopper 10. The drive motor 14 drives the first scraper 12 and the second scraper 13 to rotate through the rotating rod 11. The first scraper 12 scrapes off the suspended particles on one side of the primary filter membrane 7, and the second scraper 13 scrapes off the suspended particles on one side of the secondary filter membrane 8. Finally, the sample bottle 3 after sampling is removed.

[0026] like Figure 2 , 4As shown, the intake regulating component 1 includes an regulating box 15. A track 16 is provided inside the regulating box 15. Valve plates 17 are located at both ends of the track 16. A filter screen 18 is located on one side of the regulating box 15. Mounting brackets 19 are located on both sides of the regulating box 15. A through-type lead screw motor 20 is mounted on the outside of the mounting bracket 19. A lead screw body 21 is located inside the through-type lead screw motor 20. A guide rod 22 is located at the outer end of the mounting bracket 19. The output end of the regulating box 15 communicates with the input end of the grader tube 6. The valve plates 17 slide within the track 16, and the outer end of the lead screw body 21 slides at the outer end of the mounting bracket 19. The lead screw body 21 is connected to the through-type lead screw motor 20. The screw body 21 is fixed to the outer side of the valve plate 17, and the inner end of the guide rod 22 slides at the outer end of the mounting frame 19. The inner end of the guide rod 22 is fixed to the outer side of the valve plate 17. As needed, the through-type screw motor 20 drives the screw body 21 to slide inside the mounting frame 19. The upper end of the guide rod 22 slides at the upper end of the mounting frame 19. The valve plate 17 slides inside the track 16. The air intake of the regulating box 15 is adjusted. Then, the air pump 5 runs and draws air into the grading tube 6 through the air extraction pipe 4. The air enters the interior of the regulating box 15. The filter screen 18 filters mosquitoes and debris. The filtered air enters the interior of the grading tube 6.

[0027] The working principle of this utility model is as follows: First, according to the requirements, the through-type lead screw motor 20 drives the lead screw body 21 to slide inside the mounting frame 19, the upper end of the guide rod 22 slides on the upper end of the mounting frame 19, the valve plate 17 slides inside the track 16, and the air intake of the regulating box 15 is adjusted. Then, the suction pump 5 runs and draws air into the grading tube 6 through the suction pipe 4. The gas enters the interior of the regulating box 15, the filter screen 18 filters mosquitoes and debris, and the filtered gas enters the interior of the grading tube 6. The primary filter membrane 7 filters the suspended particles in the air, and the filtered material enters the interior of the corresponding sample bottle 3 through the first feed hopper 9. The secondary filter membrane 8 filters the suspended particles in the air, and the filtered material enters the interior of the corresponding sample bottle 3 through the second feed hopper 10. The drive motor 14 runs and drives the first scraper 12 and the second scraper 13 to rotate through the rotating rod 11. The first scraper 12 scrapes off the suspended particles on one side of the primary filter membrane 7, and the second scraper 13 scrapes off the suspended particles on one side of the secondary filter membrane 8. Finally, the sample bottle 3 after sampling is removed.

[0028] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the art.

Claims

1. An adjustable staged aerosol sampler, characterized in that: It includes an air intake regulating component (1), a graded sampling component (2) and a sample bottle (3). The graded sampling component (2) is located on one side of the air intake regulating component (1), and the sample bottle (3) is located on the lower side of the graded sampling component (2). An air extraction pipe (4) is provided at one end of the upper side of the graded sampling component (2), and an air extraction pump (5) is installed at one end of the air extraction pipe (4). The graded sampling component (2) includes a graded tube (6), a primary filter membrane (7) is provided at one end of the graded tube (6), a secondary filter membrane (8) is provided at the other end of the graded tube (6), a first feeding hopper (9) is provided on the lower side of the graded tube (6) near the primary filter membrane (7), a second feeding hopper (10) is provided on the lower side of the graded tube (6) near the secondary filter membrane (8), a rotating rod (11) is provided inside the graded tube (6), a first scraper (12) is provided at one end of the outer side of the rotating rod (11), a second scraper (13) is provided at the other end of the outer side of the rotating rod (11), and a drive motor (14) is installed on one side of the graded tube (6) corresponding to the position of the rotating rod (11).

2. The adjustable staged aerosol sampler according to claim 1, characterized in that, The intake regulating component (1) includes an regulating box (15), inside which is a track (16), and at both ends of the track (16) are valve plates (17). A filter screen (18) is provided on one side of the regulating box (15), and mounting brackets (19) are provided on both sides of the regulating box (15). A through-type lead screw motor (20) is installed on the outside of the mounting bracket (19), and a lead screw body (21) is provided inside the through-type lead screw motor (20). A guide rod (22) is provided at the outer end of the mounting bracket (19).

3. The adjustable staged aerosol sampler according to claim 1, characterized in that, The output end of the air intake regulating component (1) is connected to the input end of the classifier tube (6), the output end of the classifier tube (6) is connected to the input end of the suction tube (4), the output end of the suction tube (4) is connected to the input end of the suction pump (5), the lower end of the classifier tube (6) is connected to the upper end of the sample bottle (3) through the first feeding hopper (9), and the lower end of the classifier tube (6) is connected to the upper end of the sample bottle (3) through the second feeding hopper (10).

4. An adjustable staged aerosol sampler according to claim 1, characterized in that, The first scraper (12) is rotated by the rotating rod (11) to one side of the primary filter membrane (7), the second scraper (13) is rotated by the rotating rod (11) to one side of the secondary filter membrane (8), the rotating rod (11) is rotated to the inside of the primary filter membrane (7) and the secondary filter membrane (8), and the rotating rod (11) is rotated by the drive motor (14) to the inside of the grading tube (6).

5. An adjustable staged aerosol sampler according to claim 2, characterized in that, The output end of the regulating box (15) is connected to the input end of the grader tube (6), and the valve plate (17) slides at the internal position of the track (16).

6. An adjustable staged aerosol sampler according to claim 2, characterized in that, The outer end of the lead screw body (21) slides at the outer end position of the mounting bracket (19). The lead screw body (21) slides at the outer end position of the mounting bracket (19) through the through-type lead screw motor (20). The inner end of the lead screw body (21) is fixed at the outer side position of the valve plate (17). The outer end of the guide rod (22) slides at the outer end position of the mounting bracket (19). The inner end of the guide rod (22) is fixed at the outer side position of the valve plate (17).

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