Atmospheric pollution particulate matter sampling device

Abstract

The invention discloses an atmospheric pollution particulate matter sampling device, and relates to the technical field of environmental sampling, the atmospheric pollution particulate matter sampling device comprises a sampling box, the outer side of the sampling box is movably connected with a cover, the outer side of the sampling box is fixedly connected with air suction equipment, the outer side of the sampling box is fixedly connected with exhaust equipment, and the side surfaces of the exhaust equipment and the air suction equipment are fixedly connected with filter screens; the interior of the sampling box is movably connected with a filter membrane, the sampling box is provided with a pushing assembly, the pushing assembly comprises a pushing rod and a first spring which are symmetrically and movably connected in the sampling box, and a rope and a pushing plate which are symmetrically and movably connected in the sampling box, and when the sampling box is opened outwards, the extruded first spring pushes the pushing rod; the clamping block in the quick release assembly is pulled down to be far away from the buckle, the unlimited cover is pushed by the push rod to be directly opened, operation is easy, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental sampling, and particularly to a sampling device for particulate matter of air pollution. Background Art

[0002] Air pollution refers to the phenomenon that harmful substances emitted during human activities or natural processes enter the atmosphere, resulting in the deterioration of air quality, and further having a negative impact on human health, the growth of animals and plants, atmospheric visibility, and climate.

[0003] The sampling of particulate matter of air pollution refers to the process of collecting suspended solid or liquid particulate matter in the atmosphere at a specific time and place through professional equipment and technologies for subsequent analysis and research. During the sampling process, factors such as the particle size distribution, concentration, chemical composition, and meteorological conditions of the particulate matter need to be considered to ensure the accuracy and representativeness of the sampling.

[0004] In the sampling process of existing sampling devices for particulate matter of air pollution, the sampling box is generally fixed by means of threaded connection. This design makes it necessary for the staff to manually unscrew the bolts one by one when replacing the filter membrane, which is cumbersome and inefficient. In addition, since the sampling box needs to be frequently opened and closed during the filter membrane replacement process, if the operation is not careful, the filter membrane with the collected particulate matter is likely to leak samples when contacting the thread or the inner wall of the sampling box, resulting in a reduction in the amount of the collected sample, and further affecting the accuracy of subsequent analysis and the accurate measurement of the concentration of air pollutants. Therefore, a sampling device for particulate matter of air pollution is proposed. Summary of the Invention

[0005] The purpose of the present invention is to solve the drawbacks in the prior art that the sampling box is generally fixed by means of threaded connection, which makes it necessary for the staff to manually unscrew the bolts one by one when replacing the filter membrane, is cumbersome and inefficient, and the filter membrane with the collected particulate matter is likely to leak samples when contacting the thread or the inner wall of the sampling box, and to propose a sampling device for particulate matter of air pollution.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] An auxiliary device for threading a bench plate tooth sleeve comprises a sampling box, a cover is movably connected to the outer side of the sampling box, an air suction device is fixedly connected to the outer side of the sampling box, an exhaust device is fixedly connected to the outer side of the sampling box, filter screens are fixedly connected to the sides of the exhaust device and the air suction device, a filter membrane is movably connected to the inside of the sampling box, a pushing assembly is arranged on the sampling box, the pushing assembly comprises a pushing rod and a first spring symmetrically movably connected inside the sampling box, and a rope and a pushing plate symmetrically movably connected inside the sampling box, when the sampling box is opened outward, the squeezed first spring pushes the pushing rod, the outwardly movable pushing rod pulls the pushing plate through the rope, and the pushing plate drives the filter membrane to move outward, so that the staff can easily remove the filter membrane.

[0008] A quick-release assembly is provided between the sampling box and the lid, and the quick-release assembly includes buckles symmetrically fixedly connected to the outside of the sampling box, and a card block and a second spring symmetrically fixedly connected to the outside of the lid. When the lid closes the sampling box, the card block is squeezed by the buckle and fixed in the buckle through the rebound of the second spring. When the card block is pressed downward, the card block is disengaged from the buckle, and the push rod pushes the lid due to the rebound of the first spring, so that the lid releases the closure of the sampling box.

[0009] The above technical solution further includes:

[0010] The bottom of the sampling box is fixedly connected with a connecting block, the interior of the connecting block is provided with a ball groove, the interior of the ball groove is movably connected with a ball, and the angle of the sampling box can be adjusted arbitrarily through the ball.

[0011] One end of the sphere away from the connecting block is fixedly connected to a bracket plate, a plurality of bracket rods are movably connected to the outer side of the bracket plate, a rope is fixedly connected to the outer side of the bracket rod, a magic patch is fixedly connected to the outer side of the rope, and the rope can bind the collected bracket rods together.

[0012] A threaded barrel is fixedly connected to the outer side of the connecting block, and the threaded barrel is threadedly connected to a threaded rod. A rubber block is fixedly connected to one end of the threaded rod close to the connecting block, and the rubber block is movably connected to the sphere. The threaded rod can restrict the sphere through the rubber block.

[0013] The inside of the cover is symmetrically fixedly connected with a limit plate, and the inner sides of the two limit plates are movably connected with a plurality of rotating shafts. The filter membrane is movably connected with the rotating shaft, and the rotating shaft allows the filter membrane to slide smoothly and reduce friction resistance.

[0014] The outer side of the cover is symmetrically fixedly connected with a shell, the shell is fixedly connected to the second spring, the second spring is fixedly connected to the block, the block moves inside the shell, and the second spring returns the block to its original position.

[0015] The card block is movably connected to the shell, a toggle plate is fixedly connected to the outer side of the card block, the card block is movably connected to the buckle, and the card block is fixed inside the buckle by the rebound of the second spring.

[0016] The interior of the sampling box is symmetrically fixedly connected with a track, the pushing rod is slidably connected to the track, and a sliding block is fixedly connected to the side of the pushing rod. The movement of the pushing rod drives the sliding block to slide in the track.

[0017] The rope is fixedly connected to the slider, one end of the rope away from the slider is fixedly connected to the push plate, the first spring is fixedly connected to the push rod, and the movement of the slider is achieved by pulling the push plate with the rope.

[0018] The push plate is slidably connected to the track, the push plate is movably connected to the filter membrane, the slider is slidably connected to the track, and the push plate is pulled by the rope to push the filter membrane to slide outside the sampling box.

[0019] The present invention has the following beneficial effects:

[0020] 1. In the present invention, the card block is pulled down in the quick-release assembly to keep the card block away from the buckle, and the unrestricted cover is directly opened by being pushed by the push rod, which is simple to operate and improves work efficiency.

[0021] 2. In the present invention, when the lid is pushed open by the push rod in the push assembly, the push plate is pulled by the push rod to push the filter membrane to slide outside the sampling box, thereby reducing the contact between the filter membrane and the sampling box, allowing the staff to easily remove the filter membrane and preventing the particles collected on the filter membrane from leaking due to improper operation by the staff, thereby improving the accuracy of subsequent analysis and the precise measurement of the concentration of atmospheric pollutants. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a sampling device for atmospheric pollution particles proposed by the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the sampling box in the present invention;

[0024] Figure 3 It is a schematic diagram of the cross-sectional structure of the whole part in the present invention;

[0025] Figure 4 It is a front cross-sectional structural schematic diagram of the sampling box in the present invention;

[0026] Figure 5 It is a schematic diagram of the cross-sectional structure of the top surface of the sampling box in the present invention;

[0027] Figure 6It is a schematic diagram of a partial cross-sectional structure of the sampling box in the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of the quick-release assembly in the present invention.

[0029] In the figure: 1. cover; 2. sampling box; 3. suction device; 4. filter; 5. support rod; 6. support plate; 7. rope; 8. magic patch; 9. exhaust device; 10. connecting block; 11. ball groove; 12. sphere; 13. threaded rod; 14. rubber block; 15. threaded cylinder; 16. filter membrane; 17. limit plate; 18. buckle; 19. push plate; 20. shaft; 21. track; 22. push rod; 23. slider; 24. rope; 25. first spring; 26. shell; 27. second spring; 28. toggle plate; 29. ​​block. DETAILED DESCRIPTION

[0030] 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.

[0031] Embodiment 1

[0032] like Figures 1-7 As shown, a sampling device for atmospheric pollution particulate matter proposed by the present invention comprises a sampling box 2, a cover 1 is movably connected to the outer side of the sampling box 2, an air suction device 3 is fixedly connected to the outer side of the sampling box 2, an exhaust device 9 is fixedly connected to the outer side of the sampling box 2, a filter screen 4 is fixedly connected to the sides of the exhaust device 9 and the air suction device 3, a filter membrane 16 is movably connected to the inside of the sampling box 2, and a pushing assembly is arranged on the sampling box 2, the pushing assembly comprises a pushing rod 22 and a first spring 25 symmetrically movably connected inside the sampling box 2, and a rope 24 and a pushing plate 19 symmetrically movably connected inside the sampling box 2, when the sampling box 2 is opened outward, the squeezed first spring 25 pushes the pushing rod 22, the outwardly movable pushing rod 22 pulls the pushing plate 19 through the rope 24, and the pushing plate 19 drives the filter membrane 16 to move outward, so that the staff can easily take away the filter membrane 16.

[0033] A quick-release assembly is provided between the sampling box 2 and the cover 1, and the quick-release assembly includes a buckle 18 symmetrically fixedly connected to the outside of the sampling box 2, and a block 29 and a second spring 27 symmetrically fixedly connected to the outside of the cover 1. When the cover 1 closes the sampling box 2, the block 29 is squeezed by the buckle 18 and fixed in the buckle 18 by the rebound of the second spring 27. When the block 29 is pressed downward, the block 29 is disengaged from the buckle 18, and the push rod 22 is pushed by the rebound of the first spring 25 to push the cover 1, so that the cover 1 releases the seal on the sampling box 2.

[0034] The bottom of the sampling box 2 is fixedly connected with a connecting block 10, the interior of the connecting block 10 is provided with a ball groove 11, the interior of the ball groove 11 is movably connected with a ball 12, and the angle of the sampling box 2 can be adjusted freely through the ball 12.

[0035] One end of the sphere 12 away from the connecting block 10 is fixedly connected to a support plate 6, and a plurality of support rods 5 are movably connected to the outer side of the support plate 6. A rope 7 is fixedly connected to the outer side of the support rod 5, and a magic patch 8 is fixedly connected to the outer side of the rope 7. The rope 7 can bind the collected support rods 5 together.

[0036] A threaded barrel 15 is fixedly connected to the outer side of the connecting block 10, and the threaded barrel 15 is threadedly connected to the threaded rod 13. A rubber block 14 is fixedly connected to one end of the threaded rod 13 close to the connecting block 10. The rubber block 14 is movably connected to the sphere 12, and the threaded rod 13 can restrict the sphere 12 through the rubber block 14.

[0037] The inside of the cover 1 is symmetrically fixedly connected with a limit plate 17, and the inner sides of the two limit plates 17 are movably connected with multiple rotating shafts 20. The filter membrane 16 is movably connected to the rotating shafts 20. The rotating shafts 20 make the filter membrane 16 smooth during sliding and reduce friction resistance.

[0038] The outer side of the cover 1 is symmetrically fixedly connected with a shell 26, the shell 26 and the second spring 27 are fixedly connected, the second spring 27 and the block 29 are fixedly connected, the block 29 moves inside the shell 26, and the second spring 27 returns the block 29 to its original position.

[0039] The block 29 is movably connected to the housing 26 , a toggle plate 28 is fixedly connected to the outer side of the block 29 , the block 29 is movably connected to the buckle 18 , and the block 29 is fixed inside the buckle 18 by the rebound of the second spring 27 .

[0040] In this embodiment, when sampling is required, the plurality of support rods 5 are opened outward so that the plurality of support rods 5 support the sampling box 2. According to the slope of the ground, the threaded rod 13 restricts the sphere 12 so that the entire sampling box 2 is always kept horizontal with the ground, so that the sampling box 2 can better collect polluted particles in the air. When the device needs to collect, the rope 7 is used to tie the plurality of support rods 5 and connect them together through the magic sticker 8. When the equipment is adjusted, the air in the sampling box 2 is circulated by starting the suction device 3 and the exhaust device 9, so that the air inside the sampling box 2 is The filter 16 is always in fresh air to accelerate the effect of collecting particulate matter by the filter membrane 16. When the filter membrane 16 completes collecting particulate matter, the toggle plate 28 is pressed downward, and the toggle plate 28 drives the block 29 to squeeze the second spring 27 downward, so that the block 29 is separated from the inside of the buckle 18. At this time, the push rod 22 pushes the cover 1 to open outward, and the filter membrane 16 can be replaced and collected. When it needs to be closed, the cover 1 is pressed to make the cover 1 drive the block 29 to squeeze the buckle 18. The squeezed block 29 is fixed in the buckle 18 by the rebound of the second spring 27, so that the cover 1 closes the sampling box 2.

[0041] Embodiment 2

[0042] like Figures 1-7 As shown, based on the first embodiment, the interior of the sampling box 2 is symmetrically fixedly connected with a track 21, a push rod 22 is slidably connected to the track 21, a slider 23 is fixedly connected to the side of the push rod 22, and the movement of the push rod 22 drives the slider 23 to slide in the track 21.

[0043] The rope 24 is fixedly connected to the slider 23 , one end of the rope 24 away from the slider 23 is fixedly connected to the push plate 19 , the first spring 25 is fixedly connected to the push rod 22 , and the movement of the slider 23 pulls the push plate 19 through the rope 24 .

[0044] The push plate 19 is slidably connected to the track 21 , the push plate 19 is movably connected to the filter membrane 16 , the slider 23 is slidably connected to the track 21 , and the push plate 19 is pulled by the rope 24 to push the filter membrane 16 to slide to the outside of the sampling box 2 .

[0045] In this embodiment, as described in the previous step, when it is necessary to replace and collect the filter membrane 16, the first spring 25 that is squeezed rebounds to push the push rod 22, causing the push rod 22 to push the lid 1 to open. At this time, the outward-sliding push rod 22 drives the slider 23 to slide accordingly. The sliding of the slider 23 drags the push plate 19 to slide within the track 21 through the connection of the rope 24. The sliding push plate 19 drags the filter membrane 16 to slide outward, causing the filter membrane 16 to slide outward within the sampling box 2 as the lid 1 opens. In this way, the filter membrane 16 is moved away from the inside of the sampling box 2, reducing the contact between the filter membrane 16 and the sampling box 2, enabling the staff to easily remove the filter membrane 16. When it is necessary to replace the new filter membrane 16, the filter membrane 16 is directly inserted onto the limiting plate 17, and the staff manually pushes the filter membrane 16 to move inward into the sampling box 2. The inward movement of the filter membrane 16 pushes the push plate 19, and the push plate 19 pulls the push rod 22 to retract through the rope 24. When the filter membrane 16 is pushed into a part of the sampling box 2, the sampling box 2 is directly closed by the lid 1, causing the lid 1 to push the filter membrane 16 and the push rod 22 back to the origin.

[0046] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sampling device for atmospheric pollution particles, comprising a sampling box (2), characterized in that: The outer side of the sampling box (2) is movably connected to a cover (1), the outer side of the sampling box (2) is fixedly connected to an air suction device (3), the outer side of the sampling box (2) is fixedly connected to an exhaust device (9), the sides of the exhaust device (9) and the air suction device (3) are fixedly connected to a filter screen (4), the interior of the sampling box (2) is movably connected to a filter membrane (16), and the sampling box (2) is provided with a pushing component, the pushing component includes a pushing rod (22) and a first spring (25) symmetrically movably connected inside the sampling box (2), and a rope (24) and a pushing plate (19) symmetrically movably connected inside the sampling box (2), when the sampling box (2) is opened outward, the squeezed first spring (25) pushes the pushing rod (22), the outwardly movable pushing rod (22) pulls the pushing plate (19) through the rope (24), and the pushing plate (19) drives the filter membrane (16) to move outward, so that the staff can easily take away the filter membrane (16); A quick-release assembly is provided between the sampling box (2) and the cover (1), and the quick-release assembly includes a buckle (18) symmetrically fixedly connected to the outside of the sampling box (2), and a block (29) and a second spring (27) symmetrically fixedly connected to the outside of the cover (1). When the block (29) is pressed downward by hand, the block (29) is disengaged from the buckle (18), and the push rod (22) is rebounded by the first spring (25) to push the cover (1), so that the cover (1) releases the seal on the sampling box (2).

2. The sampling device for air pollution particles according to claim 1, characterized in that: A connecting block (10) is fixedly connected to the bottom of the sampling box (2), a ball groove (11) is provided inside the connecting block (10), and a ball (12) is movably connected inside the ball groove (11).

3. The sampling device for air pollution particles according to claim 2, characterized in that: One end of the sphere (12) away from the connection block (10) is fixedly connected to a support plate (6), the outer side of the support plate (6) is movably connected to a plurality of support rods (5), the outer side of the support rods (5) is fixedly connected to a rope (7), and the outer side of the rope (7) is fixedly connected to a magic patch (8).

4. The sampling device for air pollution particles according to claim 2, characterized in that: A threaded cylinder (15) is fixedly connected to the outer side of the connection block (10), the threaded cylinder (15) is threadedly connected to the threaded rod (13), one end of the threaded rod (13) close to the connection block (10) is fixedly connected to a rubber block (14), and the rubber block (14) is movably connected to the ball (12).

5. The sampling device for air pollution particles according to claim 4, characterized in that: The interior of the cover (1) is symmetrically fixedly connected to a limit plate (17), the inner sides of the two limit plates (17) are movably connected to a plurality of rotating shafts (20), and the filter membrane (16) is movably connected to the rotating shafts (20).

6. The sampling device for air pollution particles according to claim 1, characterized in that: A shell (26) is symmetrically fixedly connected to the outer side of the cover (1); the shell (26) is fixedly connected to a second spring (27); and the second spring (27) is fixedly connected to a clamping block (29).

7. The sampling device for air pollution particles according to claim 6, characterized in that: The clamping block (29) is movably connected to the housing (26), a toggle plate (28) is fixedly connected to the outer side of the clamping block (29), and the clamping block (29) is movably connected to the buckle (18).

8. The sampling device for air pollution particles according to claim 1, characterized in that: The sampling box (2) is symmetrically and fixedly connected to a track (21) inside, the push rod (22) is slidably connected to the track (21), and a sliding block (23) is fixedly connected to the side of the push rod (22).

9. The sampling device for air pollution particles according to claim 8, characterized in that: The rope (24) is fixedly connected to the slider (23), one end of the rope (24) away from the slider (23) is fixedly connected to the push plate (19), and the first spring (25) is fixedly connected to the push rod (22).

10. The sampling device for air pollution particles according to claim 8, characterized in that: The push plate (19) is slidably connected to the track (21), the push plate (19) is movably connected to the filter membrane (16), and the slider (23) is slidably connected to the track (21).

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