Air pollution sampling detector for pesticide packaging and recycling station

Abstract

The invention relates to the technical field of air sampling detection, and discloses an air pollution sampling detector for a pesticide packaging and recycling station, which comprises a barrel body, a plurality of sampling barrels uniformly arranged on one side of the front baffle back to the rear partition plate, and a plurality of air sampling devices arranged on the other side of the front baffle back to the rear partition plate, and the front baffle and the rear partition plate are fixedly arranged on the left side and the right side of the barrel body respectively. The end part of the gas-filled tube is communicated with the gas-filled tube embedded in the front baffle plate; the selection disc is rotationally installed on the side, facing the rear partition plate, of the front baffle, a Z-shaped communicating pipe is embedded in the selection disc, one end of the Z-shaped communicating pipe is communicated with the inflation pipe, the other end of the Z-shaped communicating pipe is communicated with an exhaust pipe, the exhaust pipe is installed on the rear partition plate, and a one-way exhaust valve is preassembled on the exhaust pipe; according to the air pollution sampling detector for the pesticide packaging and recycling station, the multiple sampling barrels are arranged and matched with the rotatable selection disc, multi-channel air sample collection can be achieved, single equipment can collect air samples at different positions for multiple times, and the sampling efficiency and the integrity of sampling data are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air sampling and detection, and specifically to an air pollution sampling detector for pesticide packaging recycling sites. Background Art

[0002] Pesticide packaging waste is one of the inevitable pollutions in the agricultural production process. The pesticides and their volatile organic compounds remaining on it will cause harm to the environment and human health. Therefore, pesticide packaging waste is generally collected and transported to pesticide packaging recycling sites for treatment. At pesticide packaging recycling sites, due to the centralized storage and treatment of a large number of pesticide packages, the air may contain various harmful gases, such as organic solvent vapors, pesticide particles and other volatile harmful substances. Therefore, real-time and accurate sampling and detection of the air pollution status of pesticide packaging recycling sites is of great significance for evaluating the environmental safety of the sites and formulating pollution prevention and control measures.

[0003] However, for existing air samplers, they generally can only sample a single area and cannot sample the air at multiple different sampling points multiple times, resulting in limited data coverage. And the floor area of pesticide packaging recycling sites is generally large, which leads to the inability to comprehensively evaluate the air quality of pesticide packaging recycling sites. Summary of the Invention

[0004] (I) Technical Problems to be Solved In view of the deficiencies of the prior art, the present invention provides an air pollution sampling detector for pesticide packaging recycling sites, which has the advantages of being easy to use and capable of multi-channel selectable sampling.

[0005] (II) Technical Solutions To achieve the purpose of being easy to use and capable of multi-channel selectable sampling, the present invention provides the following technical solutions: An air pollution sampling detector for pesticide packaging recycling sites, including a cylinder body, in which a front baffle and a rear partition are respectively and fixedly installed on the left and right. The detector further includes: A plurality of sampling cylinders are evenly installed on the side of the front baffle facing away from the rear partition, and the ends are communicated with the charging pipes buried inside the front baffle; A selection disk is rotatably installed on the side of the front baffle facing the rear partition, and a Z-shaped communication pipe is buried inside it. One end of the Z-shaped communication pipe is communicated with the charging pipe, and the other end is communicated with the exhaust pipe. The exhaust pipe is installed on the rear partition, and a one-way exhaust valve is pre-installed on it; An air inlet pipe is installed on the rear partition, and a one-way intake valve is pre-installed on it; A piston is movably arranged inside the cylinder body.

[0006] As a preferred technical solution of the present invention, a storage cavity is formed between one side of the front baffle facing away from the rear baffle and the cylinder body, and a plurality of the sampling cylinders are arranged in the storage cavity; An air cavity is formed between one side of the rear baffle facing away from the front baffle and the cylinder body, and the piston is movably arranged in the air cavity; An intermediate cavity is formed between the front baffle and the rear baffle, and a plurality of air permeable grooves are uniformly formed in the outer wall of the cylinder body corresponding to the position of the intermediate cavity.

[0007] As a preferred technical solution of the present invention, a sleeve is fixedly installed in the middle of one side of the selection disk facing the rear baffle, and the end of the Z-shaped connecting pipe is communicated with the sleeve; The end of the exhaust pipe is inserted into the sleeve and sealed by a rotary seal.

[0008] As a preferred technical solution of the present invention, a needle is fixedly installed at the end of the charging pipe; The mouth of the sampling cylinder is sealed by an elastic gasket, and a slot for inserting the needle is formed through the elastic gasket.

[0009] As a preferred technical solution of the present invention, an inner plug is also movably arranged in the sampling cylinder; A tail hole is formed at the tail end of the sampling cylinder.

[0010] As a preferred technical solution of the present invention, a pressure rod is fixedly installed on one side of the piston facing away from the rear baffle, and the end of the pressure rod extends to the outside of the cylinder body and is fixedly connected with a pressing plate.

[0011] As a preferred technical solution of the present invention, a flat tooth of a driven wheel is engaged with the outer wall of the selection disk, a conical tooth of the driven wheel is engaged with a conical tooth of a driving wheel, a flat tooth of the driving wheel is engaged with a rack, and the rack is movably inserted into the wall of the cylinder body.

[0012] As a preferred technical solution of the present invention, one end of the rack is fixedly connected with a connecting rod, the end of the connecting rod is fixedly connected with a side connecting rod, the end of the side connecting rod is movably inserted into a side cylinder, the side cylinder is fixedly installed on a limiting plate, and the limiting plate is fixedly installed on the pressure rod.

[0013] As a preferred technical solution of the present invention, a moving plug is fixedly connected to one end of the side connecting rod located in the side cylinder, the moving plug is movably arranged in the side cylinder and supported by a supporting spring; The side cylinder is communicated with the piston through an L-shaped groove.

[0014] (III) Beneficial effects Compared with the prior art, the present invention provides an air pollution sampling detector for pesticide packaging recycling sites, which has the following beneficial effects: 1. The air pollution sampling detector for pesticide packaging recycling sites can collect multi-channel air samples by setting multiple sampling cylinders and cooperating with a rotatable selection disk, enabling a single device to collect air samples at different positions multiple times, improving the sampling efficiency and the integrity of sampling data.

[0015] 2. The air pollution sampling detector for pesticide packaging recycling sites can collect air by pulling the pressing plate to move the piston. The operation is simple and convenient, and there is no need to manually switch channels. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional schematic diagram of the overall structure of the present invention Figure 1 ; Figure 2 is a three-dimensional schematic diagram of the overall structure of the present invention Figure 2 ; Figure 3 is a sectional view of the overall structure of the present invention; Figure 4 is an enlarged schematic diagram of the selection disk part of the present invention; Figure 5 is a sectional view of the sampling cylinder part of the present invention; Figure 6 is an enlarged schematic diagram of the piston part of the present invention; Figure 7 is a sectional view of the pressing rod part of the present invention.

[0017] In the figure: 1, cylinder body; 2, front baffle; 3, rear partition; 4, air permeable groove; 5, sampling cylinder; 6, charging pipe; 7, selection disk; 8, Z-shaped connecting pipe; 9, sleeve; 10, exhaust pipe; 11, one-way exhaust valve; 12, intake pipe; 13, one-way intake valve; 14, piston; 15, pressing rod; 16, pressing plate; 17, inner plug; 18, elastic sealing pad; 19, slot; 20, pin; 21, driven wheel; 22, driving wheel; 23, rack; 24, connecting rod; 25, side connecting rod; 26, limiting plate; 27, side cylinder; 28, moving plug; 29, support spring; 30, L-shaped groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] Embodiment: Please refer to Figures 1 - 7 , an air pollution sampling detector for a pesticide packaging recycling site, including a cylinder body 1, as Figure 3 shown, a front baffle 2 and a rear partition 3 are fixedly installed at the left and right in the cylinder body 1 respectively. A storage cavity is formed between the side of the front baffle 2 facing away from the rear partition 3 and the cylinder body 1. A plurality of sampling cylinders 5 are stored in the storage cavity and are evenly installed on the side of the front baffle 2 facing away from the rear partition 3, and the ends are connected to an air filling pipe 6 buried inside the front baffle 2; A gas cavity is formed between the side of the rear partition 3 facing away from the front baffle 2 and the cylinder body 1, and a piston 14 is movably arranged in the gas cavity; An intermediate cavity is formed between the front baffle 2 and the rear partition 3, and a plurality of air permeable grooves 4 are evenly opened on the outer wall of the cylinder body 1 corresponding to the position of the intermediate cavity.

[0020] As Figure 3 and Figure 4 shown, a selection disk 7 is rotatably installed on the side of the front baffle 2 facing the rear partition 3, and a Z-shaped communication pipe 8 is buried inside the selection disk 7. One end of the Z-shaped communication pipe 8 can be connected to the air filling pipe 6, and the other end is connected to an exhaust pipe 10. The exhaust pipe 10 is installed on the rear partition 3, and a one-way exhaust valve 11 is pre-installed on it. In addition, an intake pipe 12 is also installed on the rear partition 3, and a one-way intake valve 13 is pre-installed on the intake pipe 12; When the piston 14 moves to the right, air can be inhaled into the gas cavity through the intake pipe 12. When the piston 14 moves to the left, air can be filled into the sampling cylinder 5 through the exhaust pipe 10, the Z-shaped communication pipe 8, and the air filling pipe 6, so as to complete the air sampling; In this embodiment, by controlling the rotation of the selection disk 7, the port of the Z-shaped communication pipe 8 is connected to different air filling pipes 6, so that the air filling into which sampling cylinder 5 can be controlled, and thus the multi-channel air sample collection can be realized, enabling a single device to collect air samples at different positions multiple times, improving the sampling efficiency and the integrity of sampling data.

[0021] As Figure 4 shown, a sleeve 9 is fixedly installed in the middle of the side of the selection disk 7 facing the rear partition 3. The end of the Z-shaped communication pipe 8 is connected to the sleeve 9, and the end of the exhaust pipe 10 is inserted into the sleeve 9 and sealed by a rotary seal (such as a rubber ring), which can not only realize the free rotation of the selection disk 7, but also ensure the connection and sealing between the exhaust pipe 10 and the Z-shaped communication pipe 8.

[0022] As Figure 5As shown, a pin 20 is fixedly installed at the end of the charging pipe 6, and the mouth of the sampling cylinder 5 is sealed by an elastic gasket 18. A slot 19 for inserting the pin 20 is also formed through the elastic gasket 18. By inserting the pin 20 into the slot 19, the charging pipe 6 can be connected to the sampling cylinder 5, facilitating the charging of sampled air into the sampling cylinder 5. Conversely, when the pin 20 is pulled out, the slot 19 will automatically close to prevent air leakage. In this embodiment, a plug 17 is also movably arranged in the sampling cylinder 5. The plug 17 is located on the right side of the sampling cylinder 5. A tail hole is also formed at the tail end of the sampling cylinder 5. When charging air, the plug 17 will be pushed, so that the original air in the sampling cylinder 5 is discharged through the tail hole to complete the replacement of air.

[0023] As Figure 3 shown, a pressure rod 15 is fixedly installed on the side of the piston 14 facing away from the rear partition 3. The end of the pressure rod 15 extends to the outside of the cylinder body 1 and is fixedly connected to a pressing plate 16. By means of the pressing plate 16, the movement of the piston 14 can be controlled, and the operation is simple and convenient.

[0024] In this embodiment, as Figure 3 shown, a flat tooth of a driven wheel 21 is engaged with the outer wall of the selection disk 7. A tapered tooth of the driven wheel 21 is engaged with a tapered tooth of a driving wheel 22. A flat tooth of the driving wheel 22 is engaged with a rack 23. The rack 23 is movably inserted into the wall of the cylinder body 1. Thus, by controlling the movement of the rack 23 and through the transmission of the driving wheel 22 and the driven wheel 21, the rotation of the selection disk 7 can be controlled.

[0025] In the present invention, as Figure 6 and Figure 7 shown, the end of the rack 23 is fixedly connected to a connecting rod 24. The end of the connecting rod 24 is fixedly connected to a side connecting rod 25. The end of the side connecting rod 25 is movably inserted into a side cylinder 27. The side cylinder 27 is fixedly installed on a limit plate 26. The limit plate 26 is fixedly installed on the pressure rod 15. In addition, one end of the side connecting rod 25 located in the side cylinder 27 is fixedly connected to a moving plug 28. The moving plug 28 is movably arranged in the side cylinder 27 and is supported by a support spring 29. The side cylinder 27 is connected to the piston 14 through an L-shaped groove 30; Thus, the entire side connecting rod 25, connecting rod 24 and rack 23 can move to control the engagement between the rack 23 and the driving wheel 22; Specifically, when the piston 14 is pushed by the pressing plate 16 to charge the sampled air into the sampling cylinder 5, the gas in the air chamber will also enter the side cylinder 27 through the L-shaped groove 30 and push the moving plug 28 to move. The movement of the moving plug 28 drives the side connecting rod 25, connecting rod 24 and rack 23 to move, so that the rack 23 disengages from the driving wheel 22. At this time, the movement of the rack 23 does not drive the driving wheel 22, and the selection disk 7 will not rotate; When pulling the piston 14 to reset its position through the pressing plate 16, at this time, the moving plug 28 is no longer pushed by air, and the side connecting rod 25, the connecting rod 24 and the rack 23 will not move either. Therefore, at this time, the rack 23 is engaged with the driving wheel 22. When the rack 23 moves, it will drive the driving wheel 22 to rotate. The rotation of the driving wheel 22 can drive the selection disk 7 to rotate through the transmission of the driven wheel 21, so that the port of the Z-shaped communication pipe 8 on the selection disk 7 is connected to the next inflatable pipe 6; Thus, in the present invention, while pulling the pressing plate 16 to move the piston 14 to achieve air collection, the gas passage can be automatically changed each time the operation is performed, without manual switching.

[0026] The rotation angle of the selection disk 7 during each operation can be achieved by controlling the transmission ratio between the gears, which can be selected by those skilled in the art according to actual needs.

[0027] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood 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. Pesticide packaging recycling site air pollution sampling detector, including a cylinder body (1), a front baffle (2) and a rear partition (3) are fixedly installed on the left and right sides inside the cylinder body (1) respectively, and it is characterized in that, It further includes: A plurality of sampling cylinders (5), evenly installed on one side of the front baffle (2) facing away from the rear baffle (3), and the ends are communicated with an inflation pipe (6) buried inside the front baffle (2); A selection disk (7), rotatably installed on one side of the front baffle (2) facing the rear baffle (3), and a Z-shaped communication pipe (8) is buried inside. One end of the Z-shaped communication pipe (8) is communicated with the inflation pipe (6), and the other end is communicated with an exhaust pipe (10). The exhaust pipe (10) is installed on the rear baffle (3), and a one-way exhaust valve (11) is pre-installed thereon; An intake pipe (12), installed on the rear baffle (3), and a one-way intake valve (13) is pre-installed thereon; A piston (14), movably arranged inside the cylinder body (1).

2. The air pollution sampling detector for pesticide packaging recycling sites according to claim 1, wherein: A storage cavity is formed between one side of the front baffle (2) facing away from the rear baffle (3) and the cylinder body (1), and a plurality of the sampling cylinders (5) are arranged in the storage cavity; An air cavity is formed between one side of the rear baffle (3) facing away from the front baffle (2) and the cylinder body (1), and the piston (14) is movably arranged in the air cavity; An intermediate cavity is formed between the front baffle (2) and the rear baffle (3), and a plurality of air-permeable grooves (4) are evenly opened on the outer wall of the cylinder body (1) corresponding to the position of the intermediate cavity.

3. The air pollution sampling detector for pesticide packaging recycling sites according to claim 1, characterized in that: A sleeve (9) is fixedly installed in the middle of the side of the selection disk (7) facing the rear baffle (3), and the end of the Z-shaped communication pipe (8) is communicated with the sleeve (9); The end of the exhaust pipe (10) is inserted into the sleeve (9) and sealed by a rotary seal; 4. The air pollution sampling detector for pesticide packaging recycling sites according to claim 1, wherein: The end of the inflation pipe (6) is fixedly installed with a needle (20); The mouth of the sampling cylinder (5) is sealed by an elastic gasket (18), and a slot (19) for inserting the needle (20) is penetrated through the elastic gasket (18).

5. The air pollution sampling detector for pesticide packaging recycling sites according to claim 4, characterized in that: An inner plug (17) is also movably arranged inside the sampling cylinder (5); The tail end of the sampling cylinder (5) is provided with a tail hole.

6. The air pollution sampling detector for pesticide packaging recycling sites according to claim 1, characterized in that: One side of the piston (14) facing away from the rear baffle (3) is fixedly installed with a pressure rod (15), and the end of the pressure rod (15) extends to the outside of the cylinder body (1) and is fixedly connected with a pressing plate (16).

7. The air pollution sampling detector for pesticide packaging recycling sites according to claim 6, characterized in that: The outer wall of the selection disk (7) meshes with the flat teeth of a driven wheel (21). The tapered teeth of the driven wheel (21) mesh with the tapered teeth of a driving wheel (22). The flat teeth of the driving wheel (22) mesh with a rack (23), and the rack (23) is movably inserted into the wall body of the cylinder body (1).

8. The air pollution sampling detector for pesticide packaging recycling sites according to claim 7, characterized in that: The end of the rack (23) is fixedly connected with a connecting rod (24). The end of the connecting rod (24) is fixedly connected with a side connecting rod (25). The end of the side connecting rod (25) is movably inserted into a side cylinder (27). The side cylinder (27) is fixedly installed on a limiting plate (26), and the limiting plate (26) is fixedly installed on the pressure rod (15).

9. The air pollution sampling detector for the pesticide packaging recycling site according to claim 8, wherein: One end of the side connecting rod (25) located inside the side cylinder (27) is fixedly connected with a moving plug (28). The moving plug (28) is movably arranged in the side cylinder (27) and is supported by a support spring (29); The side cylinder (27) is communicated with the piston (14) through an L-shaped groove (30).

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