A high-altitude sampling device for ambient air

Abstract

The present invention discloses an environmental air high-altitude sampling device, which relates to the field of air sampling technology, including a mounting seat and a sampling seat, wherein the sampling seat is located below the mounting seat, and the sampling seat is mounted on the mounting seat through a mounting mechanism, and the sampling seat performs sampling operations through the sampling mechanism, and also includes a discharge mechanism. The present invention sets a sampling mechanism, and the operation of the motor drives two baffles to move closer to each other, and the air inlet and the air outlet are opened. The movement of the drone drives the air to enter the sampling chamber from the air inlet and then be discharged through the air outlet. After a period of time, the motor is started to drive the baffle displacement to synchronously close the air inlet and the air outlet, and the air is stored in the sampling chamber; when the sampling seat is removed from the mounting seat, the plug moves out of the slot, the card plate is displaced to contact and engage with the first docking plate, and the first docking plate is fixed, so that the air is sampled in the sampling chamber and air leakage is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of air sampling, in particular to a high-altitude sampling device for ambient air. Background Art

[0002] When conducting research and evaluation on air pollution, it is necessary to sample the air. Among them, high-altitude sampling can obtain air quality data at different heights, which is of great significance for studying the vertical distribution characteristics of atmospheric pollution and evaluating the transmission and diffusion laws of pollutants. Through high-altitude sampling, we can have a more comprehensive understanding of the air pollution situation and provide a scientific basis for formulating effective pollution control measures. When sampling high-altitude air, it is usually necessary to install the sampling device on a drone, and the drone carries the sampling device to high altitude for sampling operations. However, when taking the air out of the sampling device, the opening of the sampling device is opened, and it is easy for the air to mix with the air in the sampling device, affecting the sampling effect of the air, and thus affecting the accuracy of the test data.

[0003] In order to facilitate the air sampling operation, an ambient air high-altitude sampling device is provided. Summary of the invention

[0004] The purpose of the present invention is to provide an ambient air high-altitude sampling device in order to facilitate the air sampling operation.

[0005] To achieve the above object, the present invention provides the following technical solution: an ambient air high-altitude sampling device, comprising a mounting seat and a sampling seat, wherein the sampling seat is located below the mounting seat, the sampling seat is mounted on the mounting seat through a mounting mechanism, the sampling seat performs a sampling operation through the sampling mechanism, and the sampled air in the sampling seat is discharged through the exhaust mechanism;

[0006] The cam is provided with a toothed structure which is adapted to engage the toothed structure and to engage with the toothed structure on a bottom surface of the cam.

[0007] As a further solution of the present invention: the sampling mechanism includes a sampling chamber, the sampling chamber is opened inside the sampling seat, and the two ends of the sampling chamber are respectively provided with an air inlet and an air outlet, the inner wall of the sampling chamber is fixedly connected to a limit rod, the interior of the sampling seat is rotatably connected to a second threaded rod, the outer walls of the limit rod and the second threaded rod are symmetrically slidably connected to a baffle, one end of the second threaded rod is fixedly connected to a third bevel gear, the inner wall of the sampling seat located at the third bevel gear is rotatably connected to a fourth bevel gear, the top of the fourth bevel gear is fixedly connected to a first docking disk, a motor is installed inside the sampling seat, the output end of the motor is connected to a rotating shaft, the outer wall of the rotating shaft is slidably connected to a connecting cylinder, the bottom end of the connecting cylinder is fixedly connected to a second docking disk, the second docking disk is located above the first docking disk, the outer wall of the connecting cylinder is rotatably connected to a displacement rack, the displacement rack is slidably connected to the interior of the sampling seat and extends to the inner cavity of the slot, a second spring is connected between the displacement rack and the sampling seat, and the bottom end of the displacement rack is fixedly connected to a clamping plate.

[0008] As a further solution of the present invention: the discharge mechanism includes a threaded groove, the threaded groove is opened at one end of the air inlet, an exhaust groove is opened at one end of the sampling chamber, one end of the exhaust groove is communicated with the air inlet, the interior of the sampling seat is slidably connected with a partition that passes through the exhaust groove, a third spring is connected between the partition and the sampling seat, one end of the partition is fixedly connected with a push rod extending to the inner cavity of the threaded groove, and an outer wall of the partition is opened with a through hole.

[0009] As a further solution of the present invention: the outer wall of the connecting block fits with the inner wall of the connecting groove, the inner wall of the slot fits with the outer wall of the inserting block, and the outer wall of one end of the fixing block fits with the inner wall of the fixing groove.

[0010] As a further solution of the present invention: the first bevel gear is meshed with the second bevel gear, a first threaded hole is formed at the top end of the push-down rod, and the first threaded hole matches the first threaded rod.

[0011] As a further solution of the present invention: the top end and the side extending end of the fixing block are respectively provided with a first inclined surface and a second inclined surface, the pressing rod is located above the inclined surfaces, the pressing rod and the outer wall of the reinforcing block are provided with gear teeth, and the gear teeth are meshed with the spur gear.

[0012] As a further solution of the present invention: a limiting hole and a second threaded hole are provided on the outer wall of the baffle, the outer wall of the limiting rod is fitted with the inner wall of the limiting hole, and the outer wall of the second threaded rod is symmetrically provided with external threads, which match the second threaded hole.

[0013] As a further solution of the present invention: the outer wall of the rotating shaft is in contact with the inner wall of the connecting tube, the outer walls of the second docking disk and the first docking disk are fixedly connected on one side close to each other with a clamping block that can engage with each other, and the fourth bevel gear is meshed with the third bevel gear.

[0014] As a further solution of the present invention: the outer wall of the first docking plate is provided with circumferentially distributed card slots, and one end of the card plate is engaged with the card slots.

[0015] As a further solution of the present invention: limiting grooves are provided on both sides of the inner wall of the connecting cylinder, limiting blocks are symmetrically fixedly connected to both sides of the outer wall of the rotating shaft, and the outer wall of the limiting block fits with the inner wall of the limiting groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By setting up the installation mechanism, the mounting seat is installed on the drone by bolts. When installing the sampling seat, the connecting block is inserted into the connecting groove. At this time, the insert block is inserted into the slot, and the fixing block is engaged into the fixing groove by the elastic force of the first spring to fix the sampling seat. When dismantling, the rotating block is rotated to drive the lower pressure rod to move toward the fixing block. The lower pressure rod moves and contacts with the fixing block, pushing the fixing block to move out of the fixing groove, canceling the fixation of the sampling seat, and facilitating the rapid disassembly and assembly of the sampling seat from the drone.

[0018] 2. By setting up a sampling mechanism, the operation of the motor drives the two baffles to move closer to each other, and the air inlet and the air outlet are opened. The movement of the drone drives the air to enter the sampling chamber from the air inlet and then be discharged through the air outlet. After a period of time, the motor is started to drive the baffle to move to synchronously close the air inlet and the air outlet, and the air is stored in the sampling chamber; when the sampling seat is removed from the mounting seat, the plug moves out of the slot, the card plate moves to contact and engage with the first docking plate, and the first docking plate is fixed, which is convenient for sampling air in the sampling chamber and prevents leakage of the gas sample.

[0019] 3. By setting up a discharge mechanism, when the air in the sampling chamber is taken out, the air guide tube connected to the syringe is sealed and connected to the thread groove through the external thread, and a switch valve is installed on the air guide tube. The air guide tube contacts the push rod, and the push rod is pushed to move. The displacement of the push rod drives the partition to move, causing compression on the third spring. The displacement of the partition drives the through hole to move into the exhaust groove. The air in the sampling chamber enters the air inlet through the exhaust groove, and then the piston of the syringe is pulled to draw the gas into the syringe along the air guide tube. The switch valve on the air guide tube is closed, and the sampled air stored in the sampling chamber can be taken out and sealed and stored in the inner cavity of the syringe. In this process, the gas sample does not contact with the outside air. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 It is a schematic diagram of the installation of the sampling seat of the present invention;

[0022] Figure 3 It is a schematic diagram of the internal structure of the connection block of the present invention;

[0023] Figure 4 It is a schematic diagram of the internal structure of the mounting base of the present invention;

[0024] Figure 5 It is a schematic diagram of the internal structure of the sampling seat of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the displacement frame of the present invention;

[0026] Figure 7 It is a schematic diagram of the internal structure of the connecting tube of the present invention;

[0027] Figure 8 It is a schematic diagram of the installation of the partition of the present invention;

[0028] Fig. 9 It is a schematic structural diagram of the partition of the present invention.

[0029] In the figure: 1, mounting seat; 2, sampling seat; 3, mounting mechanism; 301, connecting block; 302, slot; 303, fixing slot; 304, connecting seat; 305, connecting slot; 306, insert block; 307, fixing block; 308, first spring; 309, rotating block; 310, connecting shaft; 311, first bevel gear; 312, second bevel gear; 313, first threaded rod; 314, pressing rod; 315, spur gear; 316, reinforcement block; 4, sampling mechanism; 401, sampling chamber; 402, air inlet; 403, air outlet 404, limiting rod; 405, second threaded rod; 406, third bevel gear; 407, fourth bevel gear; 408, first docking plate; 409, second docking plate; 410, connecting tube; 411, rotating shaft; 412, motor; 413, displacement frame; 414, second spring; 415, clamping plate; 416, baffle; 5, discharge mechanism; 501, threaded groove; 502, exhaust groove; 503, partition; 504, third spring; 505, push rod; 506, through hole; 6, clamping block; 7, limiting block; 8, limiting groove. 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] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0032] See also Figures 1 to 9 In an embodiment of the present invention, an ambient air high-altitude sampling device includes a mounting seat 1 and a sampling seat 2. The sampling seat 2 is located below the mounting seat 1. The sampling seat 2 is mounted on the mounting seat 1 through a mounting mechanism 3. The sampling seat 2 performs a sampling operation through a sampling mechanism 4. The sampled air in the sampling seat 2 is discharged through an exhaust mechanism 5. The mounting mechanism 3 includes a connecting block 301. The connecting block 301 is fixedly connected to the top of the sampling seat 2. A slot 302 is provided at the top of the connecting block 301. A fixing slot 303 is provided on the inner wall of the slot 302. A connecting seat 304 is fixedly connected to the bottom end of the mounting seat 1. A connecting slot 305 is provided at the bottom end of the connecting seat 304. An insert block 306 is fixedly connected to the top of the inner wall of the connecting slot 305. The insert block 306 is slidably connected to a fixed portion extending from the insert block 306. Fixed block 307, a first spring 308 is connected between the fixed block 307 and the plug block 306, one end of the mounting seat 1 is rotatably connected to a rotating block 309, one end of the rotating block 309 is fixedly connected to a connecting shaft 310, one end of the connecting shaft 310 is fixedly connected to a first bevel gear 311, the interior of the mounting seat 1 is located on the outer wall of the first bevel gear 311 and is rotatably connected to a second bevel gear 312, the bottom end of the second bevel gear 312 is fixedly connected to a first threaded rod 313, the outer wall of the first threaded rod 313 is connected to a downward pressure rod 314, the downward pressure rod 314 is slidably connected to the interior of the connecting seat 304, the interior of the connecting seat 304 is located on the outer wall of the downward pressure rod 314 and is rotatably connected to a spur gear 315, the interior of the connecting seat 304 is located on the outer wall of the spur gear 315 and is slidably connected to a reinforcement block 316.

[0033] In this embodiment: bolt holes are correspondingly provided on the mounting base 1 and the drone, and the mounting base 1 is mounted on the drone by bolts. When installing the sampling seat 2, the connecting block 301 is inserted into the connecting groove 305. At this time, the inserting block 306 is inserted into the slot 302. The fixing block 307 is engaged into the fixing groove 303 by the elastic force of the first spring 308, and the sampling seat 2 is fixedly installed. Then, the rotating block 309 is rotated. The rotating block 309 rotates to drive the connecting shaft 310 to rotate. The connecting shaft 310 rotates to drive the first bevel gear 311 to rotate. The first bevel gear 311 rotates to drive the second bevel gear 312 to rotate. The second bevel gear 312 rotates to drive the first threaded rod 313 to rotate. The first threaded rod 313 rotates to drive the pressing rod 314 to move. The pressing rod 314 moves away from the fixing block 307 to drive the spur gear 315 to rotate. The spur gear 315 rotates to drive the reinforcing block 316 to move and contact the side of the fixing block 307 to prevent the fixing block 307 from moving out of the fixing groove 303, so as to reinforce the sampling seat 2.

[0034] When the sampling seat 2 is dismantled, the rotating block 309 is rotated to drive the lower pressure rod 314 to move toward the fixed block 307. The displacement of the lower pressure rod 314 drives the spur gear 315 to rotate. The rotation of the spur gear 315 drives the reinforcement block 316 to move. The reinforcement block 316 is displaced and separated from the fixed block 307, so that the fixed block 307 can be displaced. The lower pressure rod 314 continues to move, and the lower pressure rod 314 moves and contacts with the fixed block 307, pushing the fixed block 307 to move out of the fixed groove 303, canceling the fixation of the sampling seat 2, and facilitating the rapid disassembly and assembly of the sampling seat 2 from the drone.

[0035] Please refer to Figures 5 to 7 The sampling mechanism 4 includes a sampling chamber 401, which is opened inside the sampling seat 2. An air inlet 402 and an air outlet 403 are respectively opened at both ends of the sampling chamber 401. The inner wall of the sampling chamber 401 is fixedly connected to a limiting rod 404. The interior of the sampling seat 2 is rotatably connected to a second threaded rod 405. The limiting rod 404 and the outer wall of the second threaded rod 405 are symmetrically slidably connected to a baffle 416. One end of the second threaded rod 405 is fixedly connected to a third bevel gear 406. The interior of the sampling seat 2 is located at the outer wall of the third bevel gear 406 and is rotatably connected to a fourth bevel gear 407. The top of the fourth bevel gear 407 is fixedly connected to A first docking disk 408 is connected, and a motor 412 is installed inside the sampling seat 2. The output end of the motor 412 is connected to a rotating shaft 411. The outer wall of the rotating shaft 411 is slidably connected to a connecting tube 410. The bottom end of the connecting tube 410 is fixedly connected to a second docking disk 409. The second docking disk 409 is located above the first docking disk 408. The outer wall of the connecting tube 410 is rotatably connected to a displacement frame 413. The displacement frame 413 is slidably connected to the inside of the sampling seat 2 and extends to the inner cavity of the slot 302. A second spring 414 is connected between the displacement frame 413 and the sampling seat 2. The bottom end of the displacement frame 413 is fixedly connected to a clamping plate 415.

[0036] In this embodiment: when the sampling seat 2 is installed at the bottom end of the mounting seat 1, the insert block 306 is inserted into the slot 302, the insert block 306 contacts the displacement frame 413, pushes the displacement frame 413 to move, squeezes the second spring 414, and the displacement of the displacement frame 413 drives the card plate 415 to move and separate from the first docking plate 408. At the same time, the displacement of the displacement frame 413 drives the connecting tube 410 to move, and the displacement of the connecting tube 410 drives the second docking plate 409 to contact the first docking plate 408, and the second docking plate 409 and the first docking plate 408 complete the engagement and docking.

[0037] When sampling, the motor 412 is started, and the motor 412 drives the rotating shaft 411 to rotate, and the rotating shaft 411 rotates to drive the connecting tube 410 to rotate, and the connecting tube 410 rotates to drive the second docking plate 409 and the first docking plate 408 to rotate, and the first docking plate 408 rotates to drive the fourth bevel gear 407 to rotate, and the fourth bevel gear 407 rotates to drive the third bevel gear 406 to rotate, and the third bevel gear 406 rotates to drive the second threaded rod 405 to rotate, and the second threaded rod 405 rotates to drive the two baffles 416 to move closer to each other to open the air inlet 402 and the air outlet 403. The movement of the drone drives the air to enter the sampling chamber 401 from the air inlet 402 and then be discharged through the air outlet 403. After a period of time, the motor 412 is started to drive the baffle 416 to move to synchronously close the air inlet 402 and the air outlet 403, and the air is stored in the sampling chamber 401.

[0038] When the sampling seat 2 is removed from the mounting seat 1, the insert block 306 moves out of the slot 302, and the displacement frame 413 is reset by the elastic force of the second spring 414. The displacement of the displacement frame 413 drives the card plate 415 to move and contact and engage with the first docking plate 408, thereby fixing the first docking plate 408. At the same time, the displacement of the displacement frame 413 drives the connecting tube 410 to move, and the displacement of the connecting tube 410 drives the second docking plate 409 to separate from the first docking plate 408, thereby preventing the baffle 416 from loosening and causing the sampling chamber 401 to leak, so as to facilitate the proper storage of the air sample in the sampling chamber 401 and prevent the air sample from leaking during the disassembly of the sampling seat 2.

[0039] Please refer to Figures 8 to 9 The discharge mechanism 5 includes a threaded groove 501, which is opened at one end of the air inlet 402. An exhaust groove 502 is opened at one end of the sampling chamber 401, and one end of the exhaust groove 502 is connected to the air inlet 402. A partition 503 that penetrates the exhaust groove 502 is slidably connected inside the sampling seat 2, and a third spring 504 is connected between the partition 503 and the sampling seat 2. A push rod 505 extending to the inner cavity of the threaded groove 501 is fixedly connected at one end of the partition 503, and a through hole 506 is opened on the outer wall of the partition 503.

[0040] In this embodiment: when the air in the sampling chamber 401 is taken out, the air guide tube connected to the syringe is sealed and connected to the thread groove 501 through the external thread, and a switch valve is installed on the air guide tube. The air guide tube contacts the push rod 505, and the push rod 505 is pushed to move. The displacement of the push rod 505 drives the partition 503 to move, causing the third spring 504 to be squeezed. The displacement of the partition 503 drives the through hole 506 to move into the exhaust groove 502, and the air in the sampling chamber 401 enters the air inlet 402 through the exhaust groove 502, and then the piston of the syringe is pulled to draw the gas into the syringe along the air guide tube, and the switch valve on the air guide tube is closed, so that the sampled air stored in the sampling chamber 401 can be taken out and sealed and stored in the inner cavity of the syringe, and the gas sample does not contact the outside air during this process. It should be noted that the volume of the sampling chamber 401 is 2-5 times the volume of the syringe, and the sampling chamber 401 is at normal pressure after sampling, so the syringe can smoothly draw the gas sample without difficulty in drawing due to excessive negative pressure.

[0041] Please refer to Figures 2 to 4 The outer wall of the connecting block 301 fits with the inner wall of the connecting groove 305 , the inner wall of the slot 302 fits with the outer wall of the inserting block 306 , and the outer wall of one end of the fixing block 307 fits with the inner wall of the fixing groove 303 .

[0042] In this embodiment, the connecting block 301 is inserted into the connecting groove 305 , and the inserting block 306 is inserted into the slot 302 . The fixing block 307 is engaged into the fixing groove 303 by the elastic force of the first spring 308 , so that the sampling seat 2 is fixedly installed.

[0043] Please refer to Figures 2 to 4 The first bevel gear 311 is meshed with the second bevel gear 312 , and a first threaded hole is formed at the top of the lower pressing rod 314 , and the first threaded hole matches the first threaded rod 313 .

[0044] In this embodiment: rotate the rotating block 309, the rotating block 309 rotates to drive the connecting shaft 310 to rotate, the connecting shaft 310 rotates to drive the first bevel gear 311 to rotate, the first bevel gear 311 rotates to drive the second bevel gear 312 to rotate, the second bevel gear 312 rotates to drive the first threaded rod 313 to rotate, and the first threaded rod 313 rotates to drive the lower pressure rod 314 to move.

[0045] Please refer to Figures 2 to 4 The top and the side outward end of the fixed block 307 are respectively provided with a first inclined surface and a second inclined surface, the lower pressure rod 314 is located above the inclined surface, and the outer walls of the lower pressure rod 314 and the reinforcement block 316 are provided with gear teeth, which are meshed with the spur gear 315.

[0046] In this embodiment: rotating the rotating block 309 drives the lower pressure rod 314 to move toward the fixed block 307, the displacement of the lower pressure rod 314 drives the spur gear 315 to rotate, the rotation of the spur gear 315 drives the reinforcement block 316 to move, the reinforcement block 316 moves and separates from the fixed block 307, so that the fixed block 307 can move, the lower pressure rod 314 continues to move, the lower pressure rod 314 moves and contacts the first inclined surface of the fixed block 307, pushing the fixed block 307 to move out of the fixed groove 303.

[0047] Please refer to Figures 5 to 7 The outer wall of the baffle 416 is provided with a limiting hole and a second threaded hole, the outer wall of the limiting rod 404 is fitted with the inner wall of the limiting hole, and the outer wall of the second threaded rod 405 is symmetrically provided with external threads, which match the second threaded hole.

[0048] In this embodiment, the second threaded rod 405 rotates to drive the two baffles 416 to move closer to each other, and the limiting rod 404 slides in the limiting hole. When the two baffles 416 are located at both ends of the sampling chamber 401, the air inlet 402 and the air outlet 403 can be completely closed, so that the sampling chamber 401 is in a sealed and isolated state.

[0049] Please refer to Figures 5 to 7 The outer wall of the rotating shaft 411 fits with the inner wall of the connecting tube 410 , and a clamping block 6 that can engage with each other is fixedly connected to the side where the outer walls of the second docking disk 409 and the first docking disk 408 are close to each other, and the fourth bevel gear 407 meshes with the third bevel gear 406 .

[0050] In this embodiment: the second docking plate 409 moves toward the first docking plate 408, and the two groups of blocks 6 engage with each other to complete the docking of the second docking plate 409 and the first docking plate 408; the motor 412 drives the rotating shaft 411 to rotate, the rotating shaft 411 rotates to drive the connecting tube 410 to rotate, the connecting tube 410 rotates to drive the second docking plate 409 and the first docking plate 408 to rotate, the first docking plate 408 rotates to drive the fourth bevel gear 407 to rotate, the fourth bevel gear 407 rotates to drive the third bevel gear 406 to rotate, and the third bevel gear 406 rotates to drive the second threaded rod 405 to rotate.

[0051] Please refer to Figures 5 to 7 The outer wall of the first docking plate 408 is provided with circumferentially distributed card slots, and one end of the card plate 415 is engaged with the card slots.

[0052] In this embodiment, the displacement frame 413 moves to drive the clamping plate 415 to move to contact and engage with the first docking plate 408 , thereby fixing the first docking plate 408 .

[0053] Please refer to Figures 5 to 7The inner wall of the connecting tube 410 is provided with limiting grooves 8 on both sides, and the outer wall of the rotating shaft 411 is symmetrically fixedly connected with limiting blocks 7 on both sides, and the outer wall of the limiting block 7 is in contact with the inner wall of the limiting groove 8.

[0054] In this embodiment: when the connecting tube 410 moves, the connecting tube 410 slides along the outer wall of the rotating shaft 411, and the limit block 7 slides in the limit groove 8. When the rotating shaft 411 rotates, the connecting tube 410 is driven to rotate synchronously through the limit block 7.

[0055] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An ambient air high-altitude sampling device, comprising a mounting seat (1) and a sampling seat (2), wherein the sampling seat (2) is located below the mounting seat (1), and is characterized in that: The sampling seat (2) is mounted on the mounting seat (1) via a mounting mechanism (3); the sampling seat (2) performs a sampling operation via a sampling mechanism (4); and the sampled air in the sampling seat (2) is discharged via a discharge mechanism (5); The mounting mechanism (3) comprises a connecting block (301), the connecting block (301) being fixedly connected to the top of the sampling seat (2), the top of the connecting block (301) being provided with a slot (302), the inner wall of the slot (302) being provided with a fixing slot (303), the bottom end of the mounting seat (1) being fixedly connected to a connecting seat (304), the bottom end of the connecting seat (304) being provided with a connecting slot (305), the top end of the inner wall of the connecting slot (305) being fixedly connected to an inserting block (306), the inside of the inserting block (306) being slidably connected to a fixing block (307) extending from the inserting block (306), a first spring (308) being connected between the fixing block (307) and the inserting block (306), and one end of the mounting seat (1) being rotatably connected to a rotating block (309). One end of the rotating block (309) is fixedly connected to a connecting shaft (310), one end of the connecting shaft (310) is fixedly connected to a first bevel gear (311), an interior of the mounting seat (1) is located on an outer wall of the first bevel gear (311) and is rotatably connected to a second bevel gear (312), a bottom end of the second bevel gear (312) is fixedly connected to a first threaded rod (313), an outer wall of the first threaded rod (313) is connected to a pressing rod (314), the pressing rod (314) is slidably connected to the interior of the connecting seat (304), an interior of the connecting seat (304) is located on an outer wall of the pressing rod (314) and is rotatably connected to a spur gear (315), and an interior of the connecting seat (304) is located on an outer wall of the spur gear (315) and is slidably connected to a reinforcing block (316).

2. The high-altitude ambient air sampling device according to claim 1, characterized in that: The sampling mechanism (4) comprises a sampling chamber (401), wherein the sampling chamber (401) is arranged inside the sampling seat (2), and an air inlet (402) and an air outlet (403) are respectively arranged at two ends of the sampling chamber (401), the inner wall of the sampling chamber (401) is fixedly connected to a limit rod (404), the interior of the sampling seat (2) is rotatably connected to a second threaded rod (405), the limit rod (404) and the outer wall of the second threaded rod (405) are symmetrically slidably connected to a baffle (416), one end of the second threaded rod (405) is fixedly connected to a third bevel gear (406), the interior of the sampling seat (2) is located on the outer wall of the third bevel gear (406) and is rotatably connected to a fourth bevel gear (407), and the top of the fourth bevel gear (407) is fixedly connected to a third bevel gear (416). A docking plate (408), wherein a motor (412) is installed inside the sampling seat (2), the output end of the motor (412) is connected to a rotating shaft (411), the outer wall of the rotating shaft (411) is slidably connected to a connecting tube (410), the bottom end of the connecting tube (410) is fixedly connected to a second docking plate (409), the second docking plate (409) is located above the first docking plate (408), the outer wall of the connecting tube (410) is rotatably connected to a displacement frame (413), the displacement frame (413) is slidably connected to the inside of the sampling seat (2) and extends to the inner cavity of the slot (302), a second spring (414) is connected between the displacement frame (413) and the sampling seat (2), and the bottom end of the displacement frame (413) is fixedly connected to a clamping plate (415).

3. The high-altitude ambient air sampling device according to claim 2, characterized in that: The discharge mechanism (5) comprises a threaded groove (501), wherein the threaded groove (501) is provided at one end of the air inlet (402); an exhaust groove (502) is provided at one end of the sampling chamber (401), and one end of the exhaust groove (502) is communicated with the air inlet (402); a partition (503) penetrating the exhaust groove (502) is slidably connected to the interior of the sampling seat (2); a third spring (504) is connected between the partition (503) and the sampling seat (2); a push rod (505) extending to the inner cavity of the threaded groove (501) is fixedly connected to one end of the partition (503); and a through hole (506) is provided on the outer wall of the partition (503).

4. The high-altitude ambient air sampling device according to claim 1, characterized in that: The outer wall of the connecting block (301) fits with the inner wall of the connecting groove (305), the inner wall of the slot (302) fits with the outer wall of the inserting block (306), and the outer wall of one end of the fixing block (307) fits with the inner wall of the fixing groove (303).

5. The high-altitude ambient air sampling device according to claim 1, characterized in that: The first bevel gear (311) is meshed with the second bevel gear (312); a first threaded hole is formed at the top end of the lower pressing rod (314); and the first threaded hole matches the first threaded rod (313).

6. The high-altitude ambient air sampling device according to claim 1, characterized in that: The top end and the side outwardly extending end of the fixing block (307) are respectively provided with a first inclined surface and a second inclined surface, the pressing rod (314) is located above the inclined surface, and the outer walls of the pressing rod (314) and the reinforcing block (316) are provided with gear teeth, which mesh with the spur gear (315).

7. The high-altitude ambient air sampling device according to claim 2, characterized in that: The outer wall of the baffle (416) is provided with a limiting hole and a second threaded hole, the outer wall of the limiting rod (404) fits with the inner wall of the limiting hole, and the outer wall of the second threaded rod (405) is symmetrically provided with external threads, which match the second threaded hole.

8. The high-altitude ambient air sampling device according to claim 2, characterized in that: The outer wall of the rotating shaft (411) fits with the inner wall of the connecting tube (410); a clamping block (6) capable of being engaged with each other is fixedly connected to the outer walls of the second docking plate (409) and the first docking plate (408) on one side close to each other; and the fourth bevel gear (407) meshes with the third bevel gear (406).

9. The high-altitude ambient air sampling device according to claim 2, characterized in that: The outer wall of the first docking plate (408) is provided with circumferentially distributed clamping grooves, and one end of the clamping plate (415) is engaged with the clamping grooves.

10. The high-altitude ambient air sampling device according to claim 2, characterized in that: Limiting grooves (8) are provided on both sides of the inner wall of the connecting cylinder (410), and limiting blocks (7) are symmetrically fixedly connected to both sides of the outer wall of the rotating shaft (411), and the outer wall of the limiting block (7) fits the inner wall of the limiting groove (8).

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