Dust sampling device for environmental detection

Abstract

The present disclosure relates to the technical field of environment sampling device, and one embodiment of the present disclosure provides a dust sampling device for environment detection, which comprises a movable block, the upper surface of the movable block is fixedly connected with a mounting plate, the front side of the upper surface of the mounting plate is fixedly connected with a pressing block, and the dust air outside the sampling pipe is sucked into the inside of the sampling pipe through the one-way valve in the process, so that the reliability of sample sampling is ensured because there is originally no air in the inside of the sampling pipe.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of environmental sampling device technology, and more specifically, to a dust sampling device for environmental monitoring. Background Technology

[0002] Environmental monitoring is a technical process that uses sampling, analysis, and assessment to monitor environmental elements such as air, water quality, soil, and noise. It aims to assess environmental quality and identify pollution status. Its key technologies include laboratory analysis, online monitoring, and remote sensing, and it covers a variety of detection methods such as physical, chemical, and biological methods. Environmental monitoring is widely used in fields such as ecological protection, pollution control, and public health. It is characterized by its scientific nature, accuracy, and timeliness, and serves as an important basis for environmental management and decision-making, providing fundamental data support for sustainable development.

[0003] In the existing technology, when operators sample dust in the environment, they need to use a dust sampling device. Although the existing dust sampling devices have basic dust sampling functions, they generally use a fan to draw dusty air from the environment into the sampling tube. The drawback of this sampling method is that the air inside the sampling tube itself will affect the sampling of dusty air, resulting in inaccurate final sample test results. Therefore, it needs to be improved. Utility Model Content

[0004] To overcome the above-mentioned defects, embodiments of this disclosure provide a dust sampling device for environmental monitoring, which solves the technical problem of unreliable sample sampling in the prior art.

[0005] According to one aspect, at least one embodiment of this disclosure provides a dust sampling device for environmental monitoring, including a movable block, a mounting plate fixedly connected to the upper surface of the movable block, a pressing block fixedly connected to the front side of the upper surface of the mounting plate, a sampling tube movably connected to the upper surface of the pressing block, a piston block movably connected to the inner surface of the sampling tube, a pull rod fixedly connected to the inner surface of the piston block, a pulling block fixedly connected to the rear end of the pull rod, a column movably connected to the inner surface of the pulling block, a toothed plate fixedly connected to the lower surface of the column, the lower surface of the toothed plate movably connected to the upper surface of the mounting plate, a first motor located behind the movable block fixedly mounted on the lower surface of the mounting plate, a round shaft fixedly sleeved at the other end of the output shaft of the first motor, the top end of the round shaft penetrating the mounting plate and extending above the mounting plate, a gear located above the mounting plate fixedly sleeved on the outer surface of the round shaft, and the outer surface of the gear meshing with the outer surface of the toothed plate.

[0006] As a preferred technical solution of this disclosure, an L-shaped block is movably connected to the outer surface of the toothed plate, and the lower surface of the L-shaped block is fixedly connected to the upper surface of the mounting plate.

[0007] As a preferred embodiment of this disclosure, an upper pressure block is movably connected to the upper side of the outer surface of the sampling tube, and guide posts located on the left and right sides of the lower pressure block are fixedly connected to the upper surface of the mounting plate. The top end of the guide post penetrates the upper pressure block and extends above the upper pressure block. The outer surface of the guide post and the inner surface of the upper pressure block are movably sleeved. Bolts located on the left and right sides of the sampling tube are movably sleeved on the upper surface of the upper pressure block. The bottom end of the bolt penetrates the upper pressure block and the lower pressure block in sequence and extends into the interior of the lower pressure block. The outer surface of the bolt and the inner surface of the lower pressure block are threadedly sleeved.

[0008] As a preferred embodiment of this disclosure, a fixed block is movably connected to the lower surface of the movable block, and a base plate is fixedly connected to the lower surface of the fixed block.

[0009] As a preferred technical solution of this disclosure, a movable wheel is movably installed on the lower surface of the base plate, and a handrail is fixedly connected to the rear side of the upper surface of the base plate.

[0010] As a preferred technical solution of this disclosure, the left and right sides of the upper surface of the base plate are fixedly connected to a fixing plate located behind the fixing block. A second motor is fixedly installed on the left surface of the fixing plate. A double threaded rod is fixedly sleeved on the other end of the output shaft of the second motor. The right end of the double threaded rod passes through the fixing plate and extends to the right surface of the fixing plate. A moving block is threadedly sleeved on the outer surface of the double threaded rod.

[0011] As a preferred technical solution of this disclosure, a limiting rod located in front of the double threaded rod is fixedly sleeved on the left surface of the fixed plate. The right end of the limiting rod passes through the fixed plate and the moving block in sequence and extends to the right surface of the fixed plate. The outer surface of the limiting rod and the inner surface of the moving block are movably sleeved.

[0012] As a preferred technical solution of this disclosure, a vertical rod is fixedly connected to the upper surface of the base plate, and the top end of the vertical rod passes through the fixed block, the movable block and the mounting plate in sequence and extends to the top of the mounting plate and is fixedly connected to the limit block.

[0013] As a preferred embodiment of this disclosure, there are two movable blocks. A first connecting rod is hinged to the front surface of each of the two movable blocks. A second connecting rod is hinged to the other end of the first connecting rod. A third connecting rod is hinged to the other end of the second connecting rod. The other end of the third connecting rod is hinged to the rear surface of the movable block.

[0014] As a preferred embodiment of this disclosure, a one-way valve is fixedly installed on the front surface of the sampling tube, and the rear end of the one-way valve penetrates the sampling tube and extends into the interior of the sampling tube.

[0015] The beneficial effects of the embodiments disclosed herein are as follows:

[0016] 1. In this disclosure, a sampling tube, piston block, column, gear, and one-way valve are set up. When the No. 1 motor starts running, the round shaft and gear will start to rotate. At this time, the gear plate and column will start to move backward under the drive of the gear. The movement of the column will drive the pull block, thereby causing the pull block, pull rod, and piston block to move backward. During this process, the dust and air outside the sampling tube will be drawn into the interior of the sampling tube through the one-way valve. Since there is no air inside the sampling tube, the reliability of sample sampling is guaranteed.

[0017] 2. This disclosure includes a movable block, a moving block, a first connecting rod, a second connecting rod, and a third connecting rod. When the second motor starts running, the double-threaded rod begins to rotate. At this time, the two moving blocks begin to move towards each other under the drive of the double-threaded rod. The first connecting rod rotates along with the movement of the moving blocks. Simultaneously, the rotation of the first connecting rod causes the second connecting rod to start rotating as well. Similarly, the third connecting rod also begins to rotate under the drive of the second connecting rod. Finally, the other end of the third connecting rod drives the entire movable block, thereby causing the entire movable block to move upward. This allows the entire sampling tube to perform dust sampling at different height positions. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure in one embodiment of the present disclosure;

[0020] Figure 2 for Figure 1 A schematic diagram of the overall back structure in the embodiment;

[0021] Figure 3 for Figure 1 A schematic cross-sectional view of the overall structure in the embodiment;

[0022] Figure 4 for Figure 1 A schematic cross-sectional view of the side of the active block in the embodiment;

[0023] Figure 5 for Figure 1 A cross-sectional view of the circular shaft in the embodiment;

[0024] Figure 6 for Figure 1 A cross-sectional view of the guide post in the embodiment.

[0025] In the diagram: 1. Movable block; 2. Mounting plate; 3. Lower pressure block; 4. Sampling tube; 5. Piston block; 6. Pull rod; 7. Pull block; 8. Column; 9. Gear plate; 10. Motor No. 1; 11. Round shaft; 12. Gear; 13. L-shaped block; 14. Handrail; 15. Moving wheel; 16. Upper pressure block; 17. Guide column; 18. Bolt; 19. Fixing block; 20. Base plate; 21. Fixing plate; 22. Motor No. 2; 23. Double threaded rod; 24. Movable block; 25. Connecting rod No. 1; 26. Connecting rod No. 2; 27. Connecting rod No. 3; 28. Limiting rod; 29. ​​Vertical rod; 30. Limiting block; 31. One-way valve. Detailed Implementation

[0026] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0027] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0028] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0029] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0031] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] like Figures 1-6 As shown, a dust sampling device for environmental monitoring according to an embodiment of the present disclosure is illustrated, including a movable block 1. A mounting plate 2 is fixedly connected to the upper surface of the movable block 1. A pressing block 3 is fixedly connected to the front side of the upper surface of the mounting plate 2. A sampling tube 4 is movably connected to the upper surface of the pressing block 3. A piston block 5 is movably connected to the inner surface of the sampling tube 4. A pull rod 6 is fixedly connected to the inner surface of the piston block 5. A pull block 7 is fixedly connected to the rear end of the pull rod 6. A column 8 is movably connected to the inner surface of the pull block 7. A toothed plate 9 is fixedly connected to the lower surface of the column 8. The lower surface of the toothed plate 9 is movably connected to the upper surface of the mounting plate 2. A first motor 10 located behind the movable block 1 is fixedly mounted on the lower surface of the mounting plate 2. A round shaft 11 is fixedly sleeved at the other end of the output shaft of the first motor 10. The top end of the round shaft 11 passes through the mounting plate 2 and extends above the mounting plate 2. A gear 12 located above the mounting plate 2 is fixedly sleeved on the outer surface of the round shaft 11. The outer surface of the gear 12 meshes with the outer surface of the toothed plate 9.

[0033] The length of the toothed plate 9 is greater than the length of the sampling tube 4, thus ensuring that the pull block 7 can move with the column 8 to the last side of the inner surface of the sampling tube 4. The design of the piston block 5 ensures that the gas extracted into the sampling tube 4 will not escape from the gap between the piston block 5 and the sampling tube 4.

[0034] In some examples, the outer surface of the toothed plate 9 is movably connected to an L-shaped block 13, and the lower surface of the L-shaped block 13 is fixedly connected to the upper surface of the mounting plate 2.

[0035] The distance between the toothed plate 9 and the pull block 7 is less than the length of the sampling tube 4, which ensures that the piston block 5 will not detach from the inner surface of the sampling tube 4.

[0036] In some examples, an upper pressure block 16 is movably connected to the upper side of the outer surface of the sampling tube 4, and guide posts 17 located on the left and right sides of the lower pressure block 3 are fixedly connected to the upper surface of the mounting plate 2. The top of the guide post 17 passes through the upper pressure block 16 and extends above the upper pressure block 16. The outer surface of the guide post 17 and the inner surface of the upper pressure block 16 are movably sleeved. Bolts 18 located on the left and right sides of the sampling tube 4 are movably sleeved on the upper surface of the upper pressure block 16. The bottom of the bolt 18 passes through the upper pressure block 16 and the lower pressure block 3 in sequence and extends into the interior of the lower pressure block 3. The outer surface of the bolt 18 and the inner surface of the lower pressure block 3 are threadedly sleeved.

[0037] The design of the upper pressure block 16 and bolt 18 serves to clamp and fix the sampling tube 4.

[0038] In some examples, the lower surface of the movable block 1 is movably connected to the fixed block 19, and the lower surface of the fixed block 19 is fixedly connected to the base plate 20.

[0039] The design of the fixed block 19 serves as a counterweight and limits the overall movement range of the movable block 1.

[0040] In some examples, the lower surface of the base plate 20 is movably mounted with casters 15, and the rear side of the upper surface of the base plate 20 is fixedly connected with a handrail 14.

[0041] The design of the handrail 14 and the casters 15 makes it convenient for operators to move the base plate 20 as a whole.

[0042] In some examples, the left and right sides of the upper surface of the base plate 20 are fixedly connected to the fixing plate 21 located behind the fixing block 19. The left surface of the fixing plate 21 is fixedly installed with the second motor 22. The other end of the output shaft of the second motor 22 is fixedly sleeved with a double threaded rod 23. The right end of the double threaded rod 23 passes through the fixing plate 21 and extends to the right surface of the fixing plate 21. The outer surface of the double threaded rod 23 is threaded with a moving block 24.

[0043] The thread of the double-threaded rod 23 is a fine thread with a self-locking design, which prevents the moving block 24 from moving when the double-threaded rod 23 is stationary.

[0044] In some examples, a limiting rod 28 located in front of the double threaded rod 23 is fixedly sleeved on the left surface of the fixed plate 21. The right end of the limiting rod 28 passes through the fixed plate 21 and the moving block 24 in sequence and extends to the right surface of the fixed plate 21. The outer surface of the limiting rod 28 and the inner surface of the moving block 24 are movably sleeved.

[0045] The design of the limit rod 28 serves to restrict the movement direction of the moving block 24.

[0046] In some examples, a vertical rod 29 is fixedly connected to the upper surface of the base plate 20. The top of the vertical rod 29 passes through the fixed block 19, the movable block 1 and the mounting plate 2 in sequence and extends to the top of the mounting plate 2 and is fixedly connected to the limit block 30.

[0047] The vertical rod 29 is designed to restrict the overall direction of movement of the movable block 1, while the limit block 30 is designed to restrict the overall range of movement of the movable block 1.

[0048] In some examples, there are two movable blocks 24. The front surfaces of both movable blocks 24 are hinged to a first link 25. The other end of the first link 25 is hinged to a second link 26. The other end of the second link 26 is hinged to a third link 27. The other end of the third link 27 is hinged to the rear surface of the movable block 1.

[0049] The total length of link 25, link 26 and link 27 is greater than the length of the vertical rod 29, which allows the movable block 1 to move to the highest point on the outer surface of the vertical rod 29.

[0050] In some examples, a one-way valve 31 is fixedly mounted on the front surface of the sampling tube 4, and the rear end of the one-way valve 31 passes through the sampling tube 4 and extends into the interior of the sampling tube 4.

[0051] The design of the one-way valve 31 ensures that the dusty air, after being drawn into the sampling tube 4 through the one-way valve 31, will not escape from the one-way valve 31 to the outside of the sampling tube 4.

[0052] The working principle and usage process of this disclosure are as follows:

[0053] When the operator needs to perform dust air sampling, the operator first starts motor 22. As motor 22 runs, double threaded rod 23 will start to rotate and cause two moving blocks 24 to move towards each other. At the same time, connecting rod 25, connecting rod 26 and connecting rod 27 will also start to rotate. The other end of connecting rod 27 will drive moving block 1, causing moving block 1 to move upward until the height of sampling tube 4 meets the operator's sampling needs.

[0054] Then the operator starts motor 10. As motor 10 runs, the shaft 11 and gear 12 will start to rotate. The rotation of gear 12 will drive the toothed plate 9, which will cause the toothed plate 9 and column 8 to move backward. During this process, the pull block 7, pull rod 6 and piston block 5 will be moved backward along with the column 8. At this time, the dust air outside the sampling tube 4 will be drawn into the sampling tube 4 through the one-way valve 31, thus completing the sampling operation of dust air in the environment.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A dust sampling device for environmental monitoring, comprising a movable block (1), characterized in that: A mounting plate (2) is fixedly connected to the upper surface of the movable block (1). A pressing block (3) is fixedly connected to the front side of the upper surface of the mounting plate (2). A sampling tube (4) is movably connected to the upper surface of the pressing block (3). A piston block (5) is movably connected to the inner surface of the sampling tube (4). A pull rod (6) is fixedly connected to the inner surface of the piston block (5). A pull block (7) is fixedly connected to the rear end of the pull rod (6). A column (8) is movably connected to the inner surface of the pull block (7). A toothed plate (9) is fixedly connected to the lower surface of the column (8). The lower surface of the gear plate (9) is movably connected to the upper surface of the mounting plate (2). A first motor (10) located behind the movable block (1) is fixedly installed on the lower surface of the mounting plate (2). A round shaft (11) is fixedly sleeved on the other end of the output shaft of the first motor (10). The top end of the round shaft (11) passes through the mounting plate (2) and extends to the top of the mounting plate (2). A gear (12) located above the mounting plate (2) is fixedly sleeved on the outer surface of the round shaft (11). The outer surface of the gear (12) meshes with the outer surface of the gear plate (9).

2. The dust sampling device for environmental monitoring according to claim 1, characterized in that: The outer surface of the toothed plate (9) is movably connected to an L-shaped block (13), and the lower surface of the L-shaped block (13) is fixedly connected to the upper surface of the mounting plate (2).

3. The dust sampling device for environmental monitoring according to claim 1, characterized in that: The upper side of the outer surface of the sampling tube (4) is movably connected to an upper pressure block (16). The upper surface of the mounting plate (2) is fixedly connected to guide posts (17) located on the left and right sides of the lower pressure block (3). The top of the guide post (17) passes through the upper pressure block (16) and extends to the top of the upper pressure block (16). The outer surface of the guide post (17) and the inner surface of the upper pressure block (16) are movably sleeved. The upper surface of the upper pressure block (16) is movably sleeved with bolts (18) located on the left and right sides of the sampling tube (4). The bottom end of the bolt (18) passes through the upper pressure block (16) and the lower pressure block (3) in sequence and extends into the interior of the lower pressure block (3). The outer surface of the bolt (18) and the inner surface of the lower pressure block (3) are threaded together.

4. The dust sampling device for environmental monitoring according to claim 1, characterized in that: The lower surface of the movable block (1) is movably connected to a fixed block (19), and the lower surface of the fixed block (19) is fixedly connected to a base plate (20).

5. The dust sampling device for environmental monitoring according to claim 4, characterized in that: The lower surface of the base plate (20) is movably mounted with casters (15), and the rear side of the upper surface of the base plate (20) is fixedly connected with a handrail (14).

6. The dust sampling device for environmental monitoring according to claim 4, characterized in that: The bottom plate (20) has a fixed plate (21) fixedly connected to the left and right sides of the upper surface of the base plate (20) and located behind the fixed block (19). A second motor (22) is fixedly installed on the left surface of the fixed plate (21). A double threaded rod (23) is fixedly sleeved on the other end of the output shaft of the second motor (22). The right end of the double threaded rod (23) passes through the fixed plate (21) and extends to the right surface of the fixed plate (21). A moving block (24) is threadedly sleeved on the outer surface of the double threaded rod (23).

7. A dust sampling device for environmental monitoring according to claim 6, characterized in that: The left surface of the fixed plate (21) is fixedly sleeved with a limiting rod (28) located in front of the double threaded rod (23). The right end of the limiting rod (28) passes through the fixed plate (21) and the moving block (24) in sequence and extends to the right surface of the fixed plate (21). The outer surface of the limiting rod (28) and the inner surface of the moving block (24) are movably sleeved.

8. The dust sampling device for environmental monitoring according to claim 4, characterized in that: A vertical rod (29) is fixedly connected to the upper surface of the base plate (20). The top end of the vertical rod (29) passes through the fixed block (19), the movable block (1) and the mounting plate (2) in sequence and extends to the top of the mounting plate (2) and is fixedly connected to the limit block (30).

9. A dust sampling device for environmental monitoring according to claim 6, characterized in that: There are two movable blocks (24). The front surfaces of the two movable blocks (24) are hinged to a first connecting rod (25). The other end of the first connecting rod (25) is hinged to a second connecting rod (26). The other end of the second connecting rod (26) is hinged to a third connecting rod (27). The other end of the third connecting rod (27) is hinged to the rear surface of the movable block (1).

10. A dust sampling device for environmental monitoring according to claim 1, characterized in that: A one-way valve (31) is fixedly installed on the front surface of the sampling tube (4), and the rear end of the one-way valve (31) passes through the sampling tube (4) and extends into the interior of the sampling tube (4).

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