Pasture air pollution detection equipment

Abstract

The invention belongs to the technical field of air detection equipment, and particularly discloses pasture air pollution detection equipment which comprises an equipment body, an air outlet is formed in the top of the equipment body, and a sampling assembly is arranged at the bottom of the equipment body; the sampling assembly comprises a mounting block, a protective sleeve, a protective plate, a mounting pipe, a first sampling pipe, a second sampling pipe and a driving structure. The mounting pipe is driven to rotate through the driving structure, so that the first sampling pipe and the second sampling pipe rotate and are switched, the first sampling pipe and the second sampling pipe do not need to be frequently disassembled and assembled, the detection efficiency is conveniently improved, the workload and the cost are reduced, and meanwhile the detection efficiency is improved by switching the first sampling pipe and the second sampling pipe with different diameters. Air in different ranges can be collected conveniently, distribution, concentration and diffusion conditions of air pollutants in the pasture can be mastered more comprehensively and accurately, and use is facilitated.

Description

Technical Field

[0001] This invention belongs to the field of air detection equipment technology, and specifically relates to an air pollution detection device for pastures. Background Technology

[0002] With the development of the livestock industry, environmental pollution in livestock farms has become a major concern. Environmental pollution can lead to diseases and even death in livestock and poultry, and also severely degrades the quality of dairy products, causing significant losses to livestock enterprises. Livestock air pollution detection equipment is a type of monitoring instrument specifically designed for the unique environment of livestock farms (such as cattle farms, pig farms, and poultry houses). It is mainly used for real-time, continuous, or periodic monitoring of the concentration of pollutants harmful to livestock health, production performance, and human safety in and around the farm, as well as key environmental parameters. This provides data support for farm environmental management, pollution control, and safe production. It primarily addresses the characteristic air pollution problems caused by livestock and poultry farming activities (such as manure fermentation, feed decomposition, and livestock respiration and excretion).

[0003] In existing technologies, sampling tubes are used to sample and test the air in pastures. However, during use, as the usage time increases, the inner wall of the sampling tube easily accumulates dust, oil, and other impurities, making it difficult to clean. Therefore, the sampling tube needs to be frequently disassembled and reassembled, which does not improve the efficiency of testing, thereby increasing the workload and cost and affecting the normal operation of sampling work.

[0004] Therefore, it is necessary to invent a ranch air pollution detection device to solve the above problems. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a ranch air pollution detection device to solve the issues raised in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a pasture air pollution detection device, comprising a device body, an air outlet at the top of the device body, and a sampling component at the bottom of the device body; The sampling assembly includes a mounting block, a protective sleeve, a protective plate, mounting tubes, a first sampling tube, a second sampling tube, and a driving structure. The mounting block is fixedly installed at the bottom of the device body. A protective sleeve is fixedly connected to the bottom of the mounting block, and a protective plate is fixedly connected to the bottom of the protective sleeve. The mounting tubes are installed inside the mounting block and are rotatably connected to the bottom of the device body. There are four mounting tubes. The first sampling tube and the second sampling tube are respectively installed inside the bottom ends of two opposite mounting tubes. A driving structure is installed on the outside of the four mounting tubes. The driving structure is located at the bottom of the device body and inside the mounting block.

[0007] Furthermore, an air inlet is provided at the bottom of the equipment body, and the bottom ends of the four mounting pipes all extend through the mounting block to the top of the protective plate. An movable opening is provided on the protective plate. The air inlet, the mounting pipe near the air inlet, the first sampling pipe, and the movable opening are all on the same axis. A baffle is provided inside the movable opening, and an electric telescopic rod is fixedly connected to one side of the movable opening. One end of the electric telescopic rod is fixedly connected to the inner wall of the protective plate.

[0008] Furthermore, the drive structure includes a motor, a rotating rod, a first gear, and a second gear. The bottom of the motor is fixedly connected to the inner wall of the bottom of the mounting block. The output end of the motor is fixedly connected to the rotating rod. The top of the rotating rod is rotatably connected to the bottom of the equipment body. The top of the rotating rod is fixedly connected to the first gear. The first gear meshes with the second gear. The inner wall of the second gear is fixedly connected to the outer side of the top of the four mounting tubes.

[0009] Furthermore, the motor is located on the side of the four mounting tubes away from the air inlet. The four mounting tubes are arranged in a linear array at the center of the inner wall of the second gear. The top of the second gear is rotatably connected to the bottom of the equipment body. Each of the four mounting tubes is movably connected to a connecting tube.

[0010] Furthermore, a filter screen is fixedly connected to the bottom of both the first and second sampling tubes. One end of the first and second sampling tubes is located inside the mounting tube, and the other end is located at the bottom of the mounting tube. The diameter of the first sampling tube is larger than that of the second sampling tube. Grooves are provided on the inner walls of the top of all four mounting tubes. Adjustment structures are provided inside the grooves and on both the first and second sampling tubes. A movable opening is provided on the side of the mounting tube near the connecting tube.

[0011] Furthermore, the adjustment structure includes a first rack, a connecting block, a rotating wheel, a movable rod, a second rack, a connecting rod, an electric push rod, and a connecting ring. The connecting block is fixedly connected to the top of the first rack, and one side of the connecting block is fixedly connected to the outer wall of the connecting tube. The rotating wheel is engaged with the side of the first rack away from the connecting block. The movable rod is fixedly connected to the middle of the rotating wheel, and both ends of the movable rod are rotatably connected to the inner wall of the groove. The second rack is engaged with the rotating wheel, and the connecting rod is fixedly connected to the bottom of the second rack. The electric push rod is fixedly connected to the bottom of the connecting rod, and the connecting ring is fixedly connected to the bottom of the electric push rod. The middle part of the connecting ring is fixedly connected to the first sampling tube and the second sampling tube, respectively.

[0012] Furthermore, both sides of the first and second racks are slidably connected to the inner wall of the groove, the connecting block is located inside the moving port and is slidably connected to the inner wall of the moving port, the connecting rod extends downward through the top of the mounting tube, the connecting rod and the electric push rod are symmetrically arranged on both sides of the first and second sampling tubes, and the connecting ring is located at the bottom of the mounting tube.

[0013] Furthermore, an installation groove is provided on the inner wall of the device body near the air inlet. A limiting structure is provided in the installation groove and on the top of the first rack. The limiting structure includes a push rod, a round protrusion, a moving block, a compression spring, and a limiting block. The push rod is fixedly connected to the top of the first rack, and the round protrusion is fixedly connected to the top of the push rod. The moving block is movably connected to the inner wall of the installation groove. The limiting block is fixedly connected to one side of the moving block, and a compression spring is fixedly connected to the top of its other side. The compression spring is fixedly connected to the inner wall of the installation groove.

[0014] Furthermore, through holes are provided at the bottom of the mounting groove and at the top of the mounting tube. The push rod and the round protrusion are correspondingly arranged with the through holes. The side of the moving block away from the limiting block is an inclined surface. The compression spring is located at the top of the inclined surface, the round protrusion is located at the bottom of the inclined surface, the limiting block is located in the mounting groove, and an arc-shaped groove is provided on the side of the limiting block away from the moving block.

[0015] The technical effects and advantages of this invention are as follows: 1. This invention uses a drive structure to rotate the mounting tube, allowing the first sampling tube and the second sampling tube to rotate and switch. This eliminates the need for frequent disassembly and reassembly of the first and second sampling tubes, improving detection efficiency and reducing workload and cost. Furthermore, by switching between first and second sampling tubes of different diameters, it is convenient to collect air samples from different ranges, enabling a more comprehensive and accurate understanding of the distribution, concentration, and diffusion of air pollutants within the pasture, thus facilitating its use.

[0016] 2. By adjusting and limiting the structure, this invention can improve the stability and sealing of the connection between the installation tube and the equipment body, preventing shaking and displacement during use, which could lead to loosening of the connection between the installation tube and the air inlet, resulting in air leakage, insufficient sample volume, and affecting the test results. This, in turn, facilitates the improvement of the collection effect of the first sampling tube and the second sampling tube. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a bottom structural diagram of the device body according to an embodiment of the present invention; Figure 3 This is an internal structural diagram of the protective sleeve and protective plate according to an embodiment of the present invention; Figure 4 This is a structural diagram of the driving structure and mounting tube according to an embodiment of the present invention; Figure 5 This is a structural diagram of the mounting tube, the first sampling tube, and the second sampling tube according to an embodiment of the present invention; Figure 6 This is a structural diagram of the adjustment structure and the limiting structure according to an embodiment of the present invention; Figure 7 This is the present invention. Figure 6Enlarged view of point A; Figure 8 This is a structural diagram of the adjustment structure according to an embodiment of the present invention; Figure 9 This is a physical diagram of an embodiment of the present invention.

[0018] In the diagram: 1. Equipment body; 2. Mounting block; 3. Protective sleeve; 4. Protective plate; 5. Mounting pipe; 6. First sampling pipe; 7. Second sampling pipe; 8. Air inlet; 9. Baffle; 10. Electric telescopic rod; 11. Motor; 12. First gear; 13. Second gear; 14. Connecting pipe; 15. Filter screen; 16. First rack; 17. Connecting block; 18. Rotating wheel; 19. Second rack; 20. Connecting rod; 21. Electric push rod; 22. Connecting ring; 23. Push rod; 24. Round convex; 25. Moving block; 26. Compression spring; 27. Limiting block. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0020] This invention provides a pasture air pollution detection device, such as... Figures 1 to 4 As shown, the device includes a main body 1, with an air outlet at the top and a sampling component at the bottom. The sampling assembly includes a mounting block 2, a protective sleeve 3, a protective plate 4, a mounting tube 5, a first sampling tube 6, a second sampling tube 7, and a driving structure. The mounting block 2 is fixedly installed at the bottom of the device body 1. The protective sleeve 3 is fixedly connected to the bottom of the mounting block 2, and the protective plate 4 is fixedly connected to the bottom of the protective sleeve 3. The mounting tube 5 is installed inside the mounting block 2 and is rotatably connected to the bottom of the device body 1. There are four mounting tubes 5. The bottom ends of two opposite mounting tubes 5 are respectively provided with the first sampling tube 6 and the second sampling tube 7. The driving structure is provided on the outside of the four mounting tubes 5. The driving structure is located at the bottom of the device body 1 and inside the mounting block 2. An air inlet 8 is opened at the bottom of the device body 1. The bottom ends of the four mounting tubes 5 all pass through the mounting block 2 and extend to the top of the protective plate 4. An movable opening is opened on the protective plate 4. The air inlet 8, the mounting tube 5 near the air inlet 8, the first sampling tube 6, and the movable opening are all on the same axis. A baffle 9 is provided inside the movable opening. An electric telescopic rod 10 is fixedly connected to one side of the movable opening. One end of the electric telescopic rod 10 is fixedly connected to the inner wall of the protective plate 4.

[0021] The first sampling tube 6 and the mounting tube 5 facilitate air collection, which is then tested by the detection equipment. The air outlet facilitates the discharge of the tested air sample, preventing the accumulation of contaminated air and maintaining a smooth detection process. The mounting block 2, protective sleeve 3, and protective plate 4 provide protection for the multiple mounting tubes 5, the first sampling tube 6, and the second sampling tube 7, preventing collisions that could loosen the connection between the mounting tube 5 and the air inlet 8 and cause air leakage. The baffle 9 blocks the movable opening, preventing dust, hair, fibers, and other small impurities from easily entering the first sampling tube 6 and the second sampling tube 7 and gradually accumulating, affecting the normal flow of air samples within the tubes, increasing airflow resistance, and preventing temperature and humidity changes from affecting its performance. In terms of lifespan and performance, the drive mechanism rotates multiple mounting tubes 5, the first sampling tube 6, and the second sampling tube 7. Used first sampling tubes 6 or 7 rotate away from the movable port, while unused first sampling tubes 6 or 7 rotate back to the movable port. The electric telescopic rod 10 then moves the baffle 9 away from the movable port. An adjustment mechanism allows unused first sampling tubes 6 or 7 to pass through the movable port and move to the bottom of the protective plate 4 for air sampling and testing. Therefore, by rotating the mounting tubes 5 via the drive mechanism, the first sampling tube 6 and second sampling tube 7 can be switched without frequent disassembly and installation, reducing workload and cost, and improving testing efficiency.

[0022] like Figures 3 to 4 As shown, the drive structure includes a motor 11, a rotating rod, a first gear 12, and a second gear 13. The bottom of the motor 11 is fixedly connected to the inner wall of the bottom of the mounting block 2. The output end of the motor 11 is fixedly connected to the rotating rod. The top of the rotating rod is rotatably connected to the bottom of the device body 1. The top of the rotating rod is fixedly connected to the first gear 12. The first gear 12 meshes with the second gear 13. The inner wall of the second gear 13 is fixedly connected to the outer side of the top of the four mounting tubes 5. The motor 11 is located on the side of the four mounting tubes 5 away from the air inlet 8. The four mounting tubes 5 are arranged in a linear array at the center of the inner wall of the second gear 13. The top of the second gear 13 is rotatably connected to the bottom of the device body 1. Each of the four mounting tubes 5 is movably connected to a connecting tube 14.

[0023] The mounting block 2 facilitates the protection of the drive structure, preventing damage from collisions that could affect the switching of the mounting tube 5, the first sampling tube 6, and the second sampling tube 7. When it is necessary to switch the used first sampling tube 6 or the second sampling tube 7, the electric motor drives the rotating rod and the first gear 12 to rotate along the bottom of the device body 1, which in turn drives the second gear 13 to rotate. This causes the four mounting tubes 5 to rotate the first sampling tube 6 and the second sampling tube 7, thus rotating the used mounting tubes 5 and the first sampling tube 6 or the second sampling tube 7 that are close to the active port away from the active port, while the unused mounting tubes 5 and the first sampling tube 6 or the second sampling tube 7 are rotated to the top of the active port for continued sampling. This reduces the number of disassembly and replacement operations and improves the sampling effect. The tubes are then moved into the air inlet 8 through the connecting tube 14, thereby improving the stability of the connection between the mounting tubes 5, the first sampling tube 6, the second sampling tube 7 and the device body 1, and improving the sealing during sampling.

[0024] like Figure 5 , Figure 6 and Figure 8 As shown, a filter screen 15 is fixedly connected to the bottom of both the first sampling tube 6 and the second sampling tube 7. One end of the first sampling tube 6 and the second sampling tube 7 is located inside the mounting tube 5, and the other end is located at the bottom of the mounting tube 5. The diameter of the first sampling tube 6 is larger than the diameter of the second sampling tube 7. Grooves are provided on the inner walls of the top of the four mounting tubes 5. Adjustment structures are provided inside the grooves and on the first sampling tube 6 and the second sampling tube 7. A movable opening is provided on the side of the mounting tube 5 near the connecting tube 14.

[0025] The filter screen 15 facilitates the filtration of collected air, intercepting airborne particles to prevent clogging and damage to the equipment, and preventing them from mixing into the air sample and affecting the test results. The first sampling tube 6 and the second sampling tube 7 of different diameters can collect air from a distance to detect the overall air quality or collect air from a local key area for detection. The adjustment structure allows the first sampling tube 6 or the second sampling tube 7 to move from the mounting tube 5 to the movable port, and then move through the movable port to the bottom of the protective plate 4 for collection. At the same time, the movable port causes the connecting tube 14 to move into the air inlet 8 when the adjustment structure moves, thereby moving the mounting tube 5, the first sampling tube 6 or the second sampling tube 7 to the bottom of the protective plate 4. During collection, the connection between the tube 6 and the equipment body 1 is kept stable, thereby improving the stability of the collection by the first sampling tube 6 or the second sampling tube 7 and improving the accuracy of the test results.

[0026] like Figures 5 to 8As shown, the adjustment structure includes a first rack 16, a connecting block 17, a rotating wheel 18, a movable rod, a second rack 19, a connecting rod 20, an electric push rod 21, and a connecting ring 22. The connecting block 17 is fixedly connected to the top of the first rack 16, and one side of the connecting block 17 is fixedly connected to the outer wall of the connecting pipe 14. The rotating wheel 18 is engaged on the side of the first rack 16 away from the connecting block 17. The movable rod is fixedly connected to the middle of the rotating wheel 18, and both ends of the movable rod are rotatably connected to the inner wall of the groove. The second rack 19 is engaged with the rotating wheel 18, and the connecting rod 20 is fixedly connected to the bottom of the second rack 19. 0. The bottom of the connecting rod 20 is fixedly connected to an electric push rod 21, and the bottom of the electric push rod 21 is fixedly connected to a connecting ring 22. The middle part of the connecting ring 22 is fixedly connected to the first sampling tube 6 and the second sampling tube 7 respectively. The first rack 16 and the second rack 19 are slidably connected to the inner wall of the groove on both sides. The connecting block 17 is located in the moving port and is slidably connected to the inner wall of the moving port. The connecting rod 20 extends downward through the top of the mounting tube 5. The connecting rod 20 and the electric push rod 21 are symmetrically arranged on both sides of the first sampling tube 6 and the second sampling tube 7. The connecting ring 22 is located at the bottom of the mounting tube 5.

[0027] When sampling is required from the first sampling tube 6 or the second sampling tube 7, the electric telescopic rod 10 first moves the baffle 9 away from the movable opening, exposing the movable opening. Then, the electric push rod 21 is activated to move the connecting ring 22 and the first sampling tube 6 or the second sampling tube 7 downwards. The symmetrically arranged connecting rod 20 and electric push rod 21 can improve the stability of the movement of the first sampling tube 6 or the second sampling tube 7. When the electric push rod 21 moves the connecting rod 20 and the second rack 19 downwards, the second rack 19 moves along the inner wall of the groove, causing the rotating wheel 18 to move downwards. The rotating rod rotates, causing the movable rod to rotate along the inner wall of the groove, improving the stability of the rotating wheel 18. Then, the first rack 16 drives the connecting block 17 to move upward. The connecting block 17 moves along the inner wall of the moving port and drives the connecting tube 14 to move upward. When the bottom end of the first sampling tube 6 or the second sampling tube 7 passes through the moving port and moves to the bottom of the protective plate 4, the top end of the connecting tube 14 moves into the air inlet 8, so that the connecting tube 14 is connected to the equipment body 1. The air collected from different ranges or distances can be detected through the first sampling tube 6 or the second sampling tube 7.

[0028] like Figures 6 to 8As shown, the inner wall of the device body 1 near the air inlet 8 has an installation groove. A limiting structure is provided in the installation groove and at the top of the first rack 16. The limiting structure includes a push rod 23, a round protrusion 24, a moving block 25, a compression spring 26, and a limiting block 27. The push rod 23 is fixedly connected to the top of the first rack 16, and the round protrusion 24 is fixedly connected to the top of the push rod 23. The moving block 25 is movably connected to the inner wall of the installation groove. The limiting block 27 is fixedly connected to one side of the moving block 25, and the compression spring 26 is fixedly connected to the top of its other side. The compression spring 26 is fixedly connected to the inner wall of the installation groove. Through holes are provided at the bottom of the installation groove and at the top of the installation tube 5. The push rod 23 and the round protrusion 24 are correspondingly arranged with the through holes. The side of the moving block 25 away from the limiting block 27 is an inclined surface. The compression spring 26 is located at the top of the inclined surface, and the round protrusion 24 is located at the bottom of the inclined surface. The limiting block 27 is located in the installation groove. An arc-shaped groove is provided on the side of the limiting block 27 away from the moving block 25.

[0029] When the first rack 16 moves upward, it drives the push rod 23 and the round protrusion 24 to move upward, so that the push rod 23 and the round protrusion 24 pass through the through hole and move into the mounting groove. When the top of the first rack 16 is in contact with the inner wall of the top of the mounting groove, the connecting pipe 14 moves into the air inlet 8. At the same time, the round protrusion 24 moves upward along the inclined surface of the moving block 25 and squeezes the moving block 25, so that the compression spring 26 is compressed. The moving block 25 drives the limiting block 27 to move along the inner wall of the mounting groove into the air inlet 8, so that the arc groove of the limiting block 27 is in contact with the outer side of the connecting pipe 14, thereby improving the stability of the connection between the connecting pipe 14 and the equipment body 1, improving the sealing performance, and facilitating the improvement of the air collection effect.

[0030] Working principle of this invention: Reference Figures 1 to 9As shown, during use, when it is necessary to detect air over a large area, the electric telescopic rod 10 is activated to move the baffle 9 away from the movable opening, exposing the movable opening. Then, the electric push rod 21 is activated to move the connecting rod 20, connecting ring 22, and first sampling tube 6 downward. When the electric push rod 21 moves the connecting rod 20 and second rack 19 downward, the second rack 19 moves along the inner wall of the groove, causing the rotating wheel 18 and movable rod to rotate. This causes the movable rod to rotate along the inner wall of the groove, which in turn causes the first rack 16 to move the connecting block 17 upward. The connecting block 17 moves along the inner wall of the movable opening and moves the connecting tube 14 upward. When the bottom end of the first sampling tube 6 or the second sampling tube 7 passes through the movable opening and moves to the bottom of the protective plate 4, the top end of the connecting tube 14 moves into the air inlet 8, connecting the connecting tube 14 to the equipment body 1. When the first rack 16 moves upward, it drives the push rod 23 and round protrusion 24 upward, causing the push rod 23 and round protrusion 24 to pass through the through hole and move into the mounting groove. When the top end of the first rack 16 moves upward, it drives the push rod 23 and round protrusion 24 to move upward, causing the push rod 23 and round protrusion 24 to pass through the through hole and move into the mounting groove. When the connecting pipe 14 is in contact with the inner wall of the top of the mounting groove, it moves into the air inlet 8. At the same time, the round protrusion 24 moves upward along the inclined surface of the moving block 25 to squeeze the moving block 25, which compresses the compression spring 26. The moving block 25 drives the limiting block 27 to move along the inner wall of the mounting groove into the air inlet 8, so that the arc groove of the limiting block 27 is in contact with the outer side of the connecting pipe 14, thereby improving the stability of the connection between the connecting pipe 14 and the equipment body 1 and improving the sealing performance. When it is necessary to collect air from a local key area at close range, the driving structure moves the mounting pipe 5 and the second sampling pipe 7 to the air inlet 8 and the movable port. Then, the adjusting structure moves the connecting pipe 14 in the mounting pipe 5 into the air inlet 8. The limiting structure limits the connecting pipe 14 at the top of the second sampling pipe 7. At the same time, the second sampling pipe 7 moves to the bottom of the protective plate 4. Then, the first sampling pipe 6 or the second sampling pipe 7 at the bottom of the protective plate 4 collects air and detects it through the equipment body 1. After the detection is completed, the collected air is discharged through the air outlet.

[0031] When it is necessary to replace the first sampling tube 6 or the second sampling tube 7, the first sampling tube 6 or the second sampling tube 7 is moved into the mounting tube 5 by adjusting the structure, and the connecting tube 14 is moved into the mounting tube 5. Then, the motor 11 is started to drive the rotating rod and the first gear 12 to rotate along the bottom of the equipment body 1, so that the second gear 13 drives the mounting tube 5, the first sampling tube 6 and the second sampling tube 7 to rotate, so that the two opposing mounting tubes 5, the first sampling tube 6 and the second sampling tube 7 rotate and exchange positions, so that the used mounting tube 5, the first sampling tube 6 or the second sampling tube 7 are moved away from the air inlet 8 and the movable port, and the unused mounting tube 5, the first sampling tube 6 or the second sampling tube 7 are moved to the air inlet 8 and the movable port. Then, the unused first sampling tube 6 or the second sampling tube 7 can be moved to the bottom of the protective plate 4 for sampling again by adjusting the structure and limiting the structure.

[0032] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A ranch air pollution detection device, comprising a device body (1), characterized in that: The device body (1) is provided with an air outlet at the top and a sampling component at the bottom; The sampling assembly includes a mounting block (2), a protective sleeve (3), a protective plate (4), a mounting tube (5), a first sampling tube (6), a second sampling tube (7), and a driving structure. The mounting block (2) is fixedly installed at the bottom of the device body (1). The bottom of the mounting block (2) is fixedly connected to the protective sleeve (3), and the bottom of the protective sleeve (3) is fixedly connected to the protective plate (4). The mounting block (2) is provided with a mounting tube (5) inside. The mounting tube (5) is rotatably connected to the bottom of the device body (1). There are four mounting tubes (5). The bottom ends of two opposite mounting tubes (5) are respectively provided with a first sampling tube (6) and a second sampling tube (7). The four mounting tubes (5) are provided with a driving structure on the outside. The driving structure is located at the bottom of the device body (1) and inside the mounting block (2).

2. The ranch air pollution detection equipment according to claim 1, characterized in that: The device body (1) has an air inlet (8) at the bottom. The bottom ends of the four mounting pipes (5) extend through the mounting block (2) to the top of the protective plate (4). The protective plate (4) has a movable opening. The air inlet (8), the mounting pipe (5) near the air inlet (8), the first sampling pipe (6), and the movable opening are all on the same axis. A baffle (9) is provided inside the movable opening. An electric telescopic rod (10) is fixedly connected to one side of the movable opening. One end of the electric telescopic rod (10) is fixedly connected to the inner wall of the protective plate (4).

3. The ranch air pollution detection equipment according to claim 2, characterized in that: The drive structure includes a motor (11), a rotating rod, a first gear (12) and a second gear (13). The bottom of the motor (11) is fixedly connected to the inner wall of the bottom of the mounting block (2). The output end of the motor (11) is fixedly connected to the rotating rod. The top of the rotating rod is rotatably connected to the bottom of the device body (1). The top of the rotating rod is fixedly connected to the first gear (12). The first gear (12) meshes with the second gear (13). The inner wall of the second gear (13) is fixedly connected to the outer side of the top of the four mounting tubes (5).

4. The ranch air pollution detection equipment according to claim 3, characterized in that: The motor (11) is located on the side of the four mounting tubes (5) away from the air inlet (8). The four mounting tubes (5) are arranged in a linear array at the center of the inner wall of the second gear (13). The top of the second gear (13) is rotatably connected to the bottom of the equipment body (1). Each of the four mounting tubes (5) is movably connected to a connecting tube (14).

5. The ranch air pollution detection equipment according to claim 4, characterized in that: The bottom of the first sampling tube (6) and the second sampling tube (7) are both fixedly connected with a filter screen (15). One end of the first sampling tube (6) and the second sampling tube (7) are located inside the mounting tube (5), and the other end is located at the bottom of the mounting tube (5). The diameter of the first sampling tube (6) is larger than the diameter of the second sampling tube (7). The inner wall of the top of each of the four mounting tubes (5) is provided with a groove. The groove, the first sampling tube (6), and the second sampling tube (7) are all provided with an adjustment structure. The mounting tube (5) is provided with a moving port on the side near the connecting tube (14).

6. The ranch air pollution detection equipment according to claim 5, characterized in that: The adjustment structure includes a first rack (16), a connecting block (17), a rotating wheel (18), a movable rod, a second rack (19), a connecting rod (20), an electric push rod (21), and a connecting ring (22). The first rack (16) is fixedly connected to the top of the connecting block (17). One side of the connecting block (17) is fixedly connected to the outer wall of the connecting tube (14). The first rack (16) is engaged with the rotating wheel (18) on the side away from the connecting block (17). The rotating wheel (18) is fixedly connected to the middle of the rotating wheel (18). Both ends of the movable rod are rotatably connected to the inner wall of the groove. The rotating wheel (18) is engaged with the second rack (19). The second rack (19) is fixedly connected to the bottom of the second rack (19). The connecting rod (20) is fixedly connected to the bottom of the connecting rod (20). The electric push rod (21) is fixedly connected to the bottom of the electric push rod (21). The connecting ring (22) is fixedly connected to the middle part of the connecting ring (22) and the first sampling tube (6) and the second sampling tube (7), respectively.

7. The ranch air pollution detection equipment according to claim 6, characterized in that: The first rack (16) and the second rack (19) are slidably connected to the inner wall of the groove on both sides. The connecting block (17) is located inside the moving port and is slidably connected to the inner wall of the moving port. The connecting rod (20) extends downward through the top of the mounting tube (5). The connecting rod (20) and the electric push rod (21) are symmetrically arranged on both sides of the first sampling tube (6) and the second sampling tube (7). The connecting ring (22) is located at the bottom of the mounting tube (5).

8. The ranch air pollution detection equipment according to claim 7, characterized in that: The device body (1) has an installation groove on its inner wall near the air inlet (8). A limiting structure is provided in the installation groove and on the top of the first rack (16). The limiting structure includes a push rod (23), a round protrusion (24), a moving block (25), a compression spring (26), and a limiting block (27). The push rod (23) is fixedly connected to the top of the first rack (16). The round protrusion (24) is fixedly connected to the top of the push rod (23). The moving block (25) is movably connected to the inner wall of the installation groove. The limiting block (27) is fixedly connected to one side of the moving block (25), and the compression spring (26) is fixedly connected to the top of its other side. The compression spring (26) is fixedly connected to the inner wall of the installation groove.

9. The ranch air pollution detection equipment according to claim 8, characterized in that: The bottom of the mounting groove and the top of the mounting tube (5) are both provided with through holes. The push rod (23) and the round protrusion (24) are provided corresponding to the through holes. The side of the moving block (25) away from the limiting block (27) is an inclined surface. The compression spring (26) is located at the top of the inclined surface. The round protrusion (24) is located at the bottom of the inclined surface. The limiting block (27) is located in the mounting groove. The side of the limiting block (27) away from the moving block (25) is provided with an arc-shaped groove.

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