Atmospheric environment detection equipment

Abstract

The present invention relates to the technical field of atmospheric detection equipment, and particularly relates to an atmospheric environment detection equipment. An installation frame is provided inside the aircraft for this atmospheric environment detection equipment. The gas collection mechanism includes a rotating mechanism, a collection pipe, a lifting driver, and a plurality of sample cans; the rotating mechanism is fixedly installed in the installation frame and can rotate circumferentially; the sample cans are installed on the rotating mechanism, and the plurality of sample cans are circumferentially spaced around the rotation center of the rotating mechanism, and the rotating mechanism can drive the sample cans to rotate between a non-collection position and a collection position; the sample cans are provided with an air intake structure; the collection pipe and the lifting driver are installed on the installation frame, the top of the collection pipe is provided with an air intake port, and the bottom of the collection pipe is provided with an air outlet hole; the lifting driver can drive the collection pipe to linearly move between a conducting position and a non-conducting position. This atmospheric environment detection equipment can perform gas sampling of large areas and multiple samples, reduce labor intensity, and improve gas sampling efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of atmospheric environment detection, and particularly to an atmospheric environment detection device. Background Art

[0002] With the development of industry, atmospheric environment monitoring has become increasingly important. Currently, the existing atmospheric sampling devices can basically only perform gas sampling at fixed positions. Once large-area multi-point sampling is required, workers must carry the atmospheric sampling device to a new location, then install and fix the atmospheric sampling device at the new location and start gas sampling. Therefore, during the process of large-area multi-point sampling, workers need to travel long distances multiple times and repeatedly install and start the atmospheric sampling device, resulting in high labor intensity and low work efficiency. Summary of the Invention

[0003] The purpose of the present invention is to provide an atmospheric sampling device that can reduce labor intensity and improve gas sampling efficiency.

[0004] To achieve the above purpose, the present invention provides an atmospheric environment detection device, which includes an aircraft, a gas collection mechanism, and a controller. An installation frame is provided in the middle of the aircraft, and the aircraft is configured to be able to fly in the air. The gas collection mechanism includes a rotating mechanism, a collection tube, a lifting driver, and a plurality of sample cans with internal vacuum. The rotating mechanism is fixedly installed in the installation frame and is configured to be able to rotate circumferentially. The sample cans are detachably installed on the rotating mechanism, and a plurality of sample cans are circumferentially spaced around the rotation center of the rotating mechanism. The rotating mechanism can drive the sample cans to rotate between a non-sampling position and a sampling position; an air inlet structure is provided at the top of the sample can. The collection tube and the lifting driver are installed on the installation frame. An air inlet communicating with the outside is provided at the top of the collection tube, and an air outlet communicating with the air inlet is provided at the bottom of the collection tube. The lifting driver can drive the collection tube to linearly move between a conducting position and a non-conducting position. The controller is signal-connected to the aircraft, the rotating mechanism, and the lifting driver. Wherein, when the collection tube is in the conducting position and the sample can is in the sampling position, the collection tube can be hermetically docked with the air inlet structure to connect the air outlet with the inside of the sample can; when the collection tube is in the non-conducting position, the air inlet structure seals the sample can.

[0005] In some embodiments, the installation frame includes a bottom plate, a top plate, and a plurality of support rods. The bottom plate is fixedly installed in the middle of the aircraft, the top plate is located above the bottom plate, the outer sides of the bottom plate and the top plate are connected by a plurality of support rods, the rotating mechanism is fixedly installed on the bottom plate, and the lifting driver and the collection tube are installed on the top plate. The atmospheric environment detection device further includes a battery, the battery is installed on the installation frame, and the aircraft, the rotating mechanism, and the lifting driver are respectively electrically connected to the battery.

[0006] In some embodiments, an installation groove is provided at the bottom of the top plate, and the installation groove is recessed from the bottom surface of the top plate towards its top surface; a sampling cylinder is provided on the bottom surface of the top plate, and the sampling cylinder surrounds the opening of the installation groove; the collection tube is movably inserted through the top plate and the sampling cylinder. The lifting drive includes a connecting plate, a guide plate, a proximity switch, an annular electromagnet, and a cylindrical lifting spring. The installation groove and the sampling cylinder surround the guide plate, the collection tube passes through the guide plate and is fixedly connected to the guide plate, the top surface of the guide plate is connected to the groove top surface of the installation groove by the lifting spring, the lifting spring surrounds the collection tube, and in the natural state, the lifting spring biases the guide plate towards the top surface of the installation groove, and a magnet is provided on the bottom surface of the guide plate; the connecting plate is located below the guide plate and is fixedly installed in the sampling cylinder, the collection tube movably passes through the connecting plate, and an electromagnet is installed on the connecting plate, and the electromagnet circumferentially surrounds the collection tube. The electrical input terminal and the electrical output terminal of the electromagnet are respectively connected to the battery through wires, and a proximity switch is installed on one of the wires, and the proximity switch is installed on the bottom plate. Among them, when any one of the sample cans rotates to the collection position, the rotation mechanism can trigger the proximity switch to supply power to the electromagnet by the battery.

[0007] In some embodiments, a cylindrical receiving groove is provided on the top surface of the bottom plate. The rotation mechanism includes a turntable, a rotation drive, and a transmission structure; the turntable is rotatably installed in the receiving groove in the circumferential direction, and the turntable is located between a plurality of support rods. A plurality of installation positions are provided on the top surface of the turntable, which are distributed at intervals around its center, and a plurality of sample cans can be detachably installed in the installation positions one by one. A plurality of contact blocks are provided at intervals on the outer peripheral surface of the turntable, and the plurality of contact blocks respectively correspond to the plurality of sample cans one by one; when the sample can rotates to the collection position, the corresponding contact block can contact and turn on the proximity switch; the rotation drive is fixedly installed on the bottom plate, the transmission structure is located outside the turntable, and the rotation drive drives the turntable to rotate through the transmission structure.

[0008] In some embodiments, an annular clamping ring is provided at the installation position, the clamping ring circumferentially surrounds the sample can, a notch allowing the disassembly and assembly of the sample can is provided on the side of the clamping ring, and an elastic rubber cushion layer is provided on the inner side surface of the clamping ring, and the rubber cushion layer fits against the outer circumference of the sample can.

[0009] In some embodiments, the sample can includes a can body, a sealing cover, and a cylindrical adsorption cylinder. An air inlet structure is provided at the top of the can body, the bottom of the can body is detachably installed in the clamping ring, a cavity is provided inside the can body, the adsorption cylinder is located in the cavity, a material taking port is provided at the bottom of the can body, and the sealing cover is detachably installed at the material taking port.

[0010] In some embodiments, the air inlet structure includes an air inlet channel and an elastic sealing film. The air inlet channel is provided at the top of the can body, the lower end of the air inlet channel communicates with the cavity, an elastic sealing film is provided in the middle of the air inlet channel, and the elastic sealing film can be punctured by the bottom end of the collection tube. A sealing ring is provided at the upper part of the air inlet channel, and the sealing ring is located above the elastic sealing film; the inner side of the sealing ring can fit against the outer circumference of the collection tube.

[0011] In some embodiments, the atmospheric environment detection device further includes a cleaning mechanism capable of cleaning the collection tube, and the cleaning mechanism is installed on the mounting frame.

[0012] In some embodiments, the cleaning mechanism includes a liquid storage tank, a diversion tube, a nozzle, and a suction assembly. The bottom of the liquid storage tank is fixedly connected to the bottom wall of the receiving groove. The liquid storage tank movably passes through the turntable, and the turntable can rotate around the liquid storage tank. The liquid storage tank contains a cleaning liquid; a liquid adding hole communicating with the inside thereof is provided at the top of the liquid storage tank. The diversion tube extends along the axial direction of the liquid storage tank. The bottom of the liquid inlet end of the diversion tube is communicated with the bottom inside the liquid storage tank, and a one-way valve is provided at the liquid inlet end of the diversion tube; the liquid outlet end of the diversion tube is fixedly connected to the bottom surface of the top plate. The top plate is provided with a first delivery channel and a second delivery channel. The liquid inlet end of the first delivery channel is hermetically communicated with the liquid outlet end of the diversion tube, and the part where the liquid outlet end of the first delivery channel is located extends towards the mounting groove; the liquid inlet end of the second delivery channel is communicated with the liquid outlet end of the first delivery channel, and the liquid outlet end of the second delivery channel extends to the mounting groove, and the diameter of the second channel is smaller than that of the first channel. The connecting plate is provided with a third delivery channel, and a nozzle facing the collection tube and communicating with the inside of the collection tube is provided at the liquid outlet end of the third delivery channel. The liquid outlet end of the third delivery channel is located between the air inlet of the collection tube and the air outlet hole of the collection tube. When the collection tube is in the non-conducting position, the liquid inlet end of the third delivery channel is hermetically communicated with the liquid outlet end of the second delivery channel. The suction assembly includes a piston block and a flexible conduit. The piston block is located at the liquid outlet end of the first delivery channel. The piston block is provided with a diversion channel, and a second one-way valve is provided in the diversion channel. The second one-way valve only allows the cleaning liquid to flow from the first delivery channel into the flexible conduit; a spring is provided between the piston block and the liquid outlet end of the first delivery channel; the flexible conduit extends in the second delivery channel and the third delivery channel. One end of the flexible conduit is fixedly connected to the piston block and hermetically communicated with the diversion channel, and the other end of the flexible conduit is hermetically connected to the nozzle. The diameter of the flexible conduit is smaller than the diameters of the second delivery channel and the third delivery channel.

[0013] In some embodiments, a middle tube extending along the axial direction thereof is provided inside the liquid storage tank. The middle tube is sleeved outside the diversion tube. A plurality of openings are provided at the lower end of the middle tube, and a plurality of balance plates are provided outside the middle tube and are spaced apart along the circumferential direction of the middle tube. The balance plates extend in the vertical plane where the axis of the middle tube is located.

[0014] The above technical solution of the present invention has the following beneficial effects:

[0015] The controller controls the aircraft to fly to the first sampling area. Then, the controller controls the rotating mechanism to rotate, and multiple sample cans rotate around the rotation center of the rotating mechanism as the rotating mechanism rotates. When a sample can rotates to the collection position directly below the collection tube, the controller controls the lifting driver to drive the collection tube to descend, so that the lower part of the collection tube is hermetically docked with the air intake structure. At this time, the collection tube is in the conducting position, and air enters the collection tube from the air inlet. Then, the air passes downward through the air outlet holes and is introduced into the sample can through the air intake structure. After a certain amount of gas sample is stored in the sample can, the controller controls the lifting driver to drive the collection tube to rise back to its original position. At this time, the collection tube is in the non-conducting position, and the air intake structure seals the sample can. After each sampling is completed, the aircraft flies to the next sampling area, and the above sampling process is repeated until all target positions are sampled. The controller controls the aircraft to return to the position of the staff. Therefore, the present invention conducts atmospheric sampling through an aircraft and is provided with multiple sample cans that can sequentially perform sampling, which can achieve multi-point sampling in a large area without the need for staff to travel long distances and repeatedly disassemble and assemble equipment for sampling, thereby reducing labor intensity and improving sampling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a perspective view of an atmospheric environment detection device according to an embodiment of the present invention;

[0017] Figure 2 is a perspective view of a mounting bracket according to an embodiment of the present invention;

[0018] Figure 3 is a sectional view of a mounting bracket according to an embodiment of the present invention;

[0019] Figure 4 is Figure 2 an enlarged view of part A in

[0020] Figure 5 is Figure 2 an enlarged view of part B in

[0021] Figure 6 is a schematic diagram of a turntable according to an embodiment of the present invention;

[0022] Figure 7 is a schematic diagram of a sample can according to an embodiment of the present invention;

[0023] Figure 8 is Figure 3 an enlarged view of part C in

[0024] Figure 9 is Figure 3 an enlarged view of part D in

[0025] Figure 10 is Figure 3 an enlarged view of part E in

[0026] Description of Reference Numerals

[0027] 1. Mounting frame; 11. Bottom plate; 113. Battery; 114. Receiving slot; 12. Top plate; 121. Mounting slot; 122. Sampling tube; 13. Support rod;

[0028] 2. Gas collection mechanism; 21. Rotating mechanism; 211. Turntable; 212. Contact block; 213. Snap ring; 214. Rotating driver; 215. Transmission structure; 216. Thrust ball bearing; 22. Collection tube; 221. Air inlet; 222. Air outlet; 23. Lifting driver; 231. Connecting plate; 232. Guide plate; 233. Proximity switch; 234. Electromagnet; 235. Lifting spring; 24. Sample tank; 241. Tank body; 242. Sealing cover; 243. Adsorption cylinder; 244. Air inlet channel; 245. Elastic sealing membrane; 246. Sealing ring; 247. Flow guide structure; 25. Air extraction device;

[0029] 3. Cleaning mechanism; 31. Liquid storage tank; 311. Liquid filling hole; 32. Flow guide tube; 33. One-way valve; 34. Nozzle; 35. First delivery channel; 36. Second delivery channel; 37. Third delivery channel; 38. Middle tube; 381. Balance plate; 39. Suction assembly; 391. Piston block; 392. Flexible conduit; 393. Spring; 394. Second one-way valve;

[0030] 4. Connecting rod; 5. Spiral fan blade; 6. Bracket. DETAILED DESCRIPTION

[0031] The specific embodiments of the present invention are described in detail below. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0032] In the present invention, unless otherwise stated, the directional words such as "upper" and "lower" usually refer to the orientation in the assembled state. "Inside" and "outside" refer to the inside and outside relative to the outline of each component itself.

[0033] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so as to describe the embodiments of the present invention described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0034] As Figure 1 shown, the present invention provides an atmospheric environment detection device, which includes an aircraft, a gas collection mechanism 2 and a controller. An installation frame 1 is provided in the middle of the aircraft, and the aircraft is configured to be able to fly in the air. The gas collection mechanism 2 includes a rotating mechanism 21, a collection tube 22, a lifting driver 23 and a plurality of sample cans 24 with internal vacuum. The rotating mechanism 21 is fixedly installed in the installation frame 1, and the rotating mechanism 21 is configured to be able to rotate circumferentially. The sample cans 24 are detachably installed on the rotating mechanism 21, and the plurality of sample cans 24 are circumferentially spaced apart around the rotation center of the rotating mechanism 21. The rotating mechanism 21 can drive the sample cans 24 to rotate between a non-collection position and a collection position; an air inlet structure is provided at the top of the sample can 24. The collection tube 22 and the lifting driver 23 are installed in the installation frame 1. An air inlet 221 communicating with the outside is provided at the top of the collection tube 22, and an air outlet 222 communicating with the air inlet 221 is provided at the bottom of the collection tube 22. The lifting driver 23 can drive the collection tube 22 to linearly move between a conducting position and a non-conducting position. The controller is signal-connected to the aircraft, the rotating mechanism 21 and the lifting driver 23. Among them, when the collection tube 22 is in the conducting position and the sample can 24 is in the collection position, the collection tube 22 can be hermetically docked with the air inlet structure so that the air outlet 222 communicates with the inside of the sample can 24; when the collection tube 22 is in the non-conducting position, the air inlet structure seals the sample can 24.

[0035] Specifically, the controller controls the aircraft carrying the gas sampling mechanism 2 to fly to the first sampling position. Then, the controller controls the rotation mechanism 21 to rotate, and the sample tank 24 can rotate around the rotation center of the rotation mechanism 21 as the rotation mechanism 21 rotates. When a sample tank 24 rotates to the sampling position directly below the sampling tube 22, the controller controls the lifting driver 23 to drive the sampling tube 22 to descend, so that the lower part of the sampling tube 22 is hermetically docked with the air intake structure. At this time, the sampling tube 22 is in the conducting position. Since the inside of the sample tank 24 is vacuum, air can sequentially pass through the air inlet 221, the air outlet 222 and the air intake structure, and then enter the sample tank 24. After a predetermined amount of gas sample is stored in the sample tank 24, the controller controls the lifting driver 23 to drive the sampling tube 22 to rise back to its original position. At this time, the sampling tube 22 is in the non-conducting position, and the air intake structure seals the sample tank 24, and the sampling in the first sampling area ends. Then, the controller controls the aircraft to fly to the second sampling position, and the rotation mechanism 21 carrying multiple sample tanks 24 continues to rotate. When the next sample tank 24 rotates to directly below the sampling tube 22, the sample tank 24 enters the sampling position, and the lifting driver 23 drives the sampling tube 22 to move down to the conducting position, and the atmospheric sample is collected again. After each sampling is completed, the aircraft flies to the next sampling position, and the above sampling process is repeated until all target positions are sampled. The controller controls the aircraft to return to the position of the staff. Therefore, through the flight movement of the aircraft, the gas sampling mechanism 2 can realize multi-point sampling in a large area, without the need for the staff to travel long distances and repeatedly disassemble and assemble equipment for sampling, thereby reducing the labor intensity and improving the sampling efficiency.

[0036] Preferably, the controller can be installed on the aircraft. Before sampling, the staff can import the map and sampling position information into the controller so that the controller can control the atmospheric environment detection equipment to perform multi-point sampling and return according to the set route. Of course, a control device can also be set to be signal-connected to the controller so that the staff can track the path of the aircraft through the control device and issue manual commands to remotely control the controller.

[0037] It should be noted that when any sample tank 24 is directly below the sampling tube 22, it is the sampling position; when any sample tank 24 is in the sampling position, the lifting driver 23 can drive the sampling tube 22 to be hermetically docked with the air intake structure, and this is the conducting position at this time.

[0038] In addition, when the rotation mechanism 21 is in the sampling position, the time for its stillness and restart, and the time for the lifting driver 23 to drive the sampling tube 22 to move down and up can be controlled by the timing system of the controller. Those skilled in the art can also choose other methods for control according to needs, and the present invention does not make restrictions.

[0039] Such as Figure 1As shown, in some embodiments of the present invention, the mounting frame 1 includes a bottom plate 11, a top plate 12 and a plurality of support rods 13. The bottom plate 11 is fixedly installed in the middle of the aircraft. The top plate 12 is located above the bottom plate 11. The outer sides of the bottom plate 11 and the top plate 12 are connected by a plurality of support rods 13. The rotating mechanism 21 is fixedly installed on the bottom plate 11, and the lifting drive 23 and the sampling tube 22 are installed on the top plate 12. The atmospheric environment detection device further includes a battery 113. The battery 113 is installed on the mounting frame 1. The aircraft, the rotating mechanism 21 and the lifting drive 23 are respectively electrically connected to the battery 113. The mounting frame 1 is generally in a frame structure with a relatively small weight, which can reduce the total weight of the atmospheric environment detection device and reduce flight energy consumption, thereby helping to expand the sampling range of the atmospheric environment detection device.

[0040] In some embodiments, the aircraft includes a propeller fan 5, a connecting rod 4, a bracket 6 and a mounting frame 1. Four connecting rods 4 provided with propeller fans 5 are connected to the top of the outer side of the support rod 13. The propeller fan 5 is provided at the outer end of the connecting rod 4, and a drive for providing power to the propeller fan 5 is carried on the connecting rod 4. Four downwardly curved brackets 6 are provided at the bottom of the outer side of the support rod 13. The bottom of the bracket 6 is lower than the bottom surface of the bottom plate 11 of the mounting frame 1. The bracket 6 is used for the takeoff and landing support of the atmospheric environment detection device. When the atmospheric environment detection device is working, the battery 113 powers the aircraft to make it operate.

[0041] As Figure 2 and Figure 4 As shown, in some embodiments of the present invention, an installation groove 121 is provided at the bottom of the top plate 12. The installation groove 121 is recessed from the bottom surface of the top plate 12 towards its top surface; a sampling cylinder 122 is provided on the bottom surface of the top plate 12. The sampling cylinder 122 surrounds the opening of the installation groove 121. The sampling tube 22 is movably inserted through the top plate 12 and the sampling cylinder 122.

[0042] Specifically, a through hole penetrating to the top surface of the top plate 12 is provided at the top of the installation groove 121, and the sampling tube 22 can move up and down in the through hole.

[0043] In some embodiments, an air extraction device 25 is provided in the through hole. The air extraction device 25 is provided above the air inlet 221 of the sampling tube 22. When collecting the atmosphere, the air extraction device 25 can accelerate the gas entering the sampling tube 22. The air extraction device 25 can be an air extraction fan, and the air extraction fan is electrically connected to the battery 113.

[0044] The lifting drive 23 includes a connecting plate 231, a guiding plate 232, a proximity switch 233, an annular electromagnet 234, and a cylindrical lifting spring 235. The installation groove 121 and the sampling cylinder 122 surround the guiding plate 232. The sampling tube 22 passes through the guiding plate 232 and is fixedly connected to the guiding plate 232. The top surface of the guiding plate 232 is connected to the top surface of the installation groove 121 through the lifting spring 235. The lifting spring 235 surrounds the sampling tube 22. In the natural state, the lifting spring 235 biases the guiding plate 232 towards the top surface of the installation groove 121. A magnet is provided on the bottom surface of the guiding plate 232. The connecting plate 231 is located below the guiding plate 232 and is fixedly installed in the sampling cylinder 122. The sampling tube 22 passes through the connecting plate 231 movably. The electromagnet 234 is installed on the connecting plate 231, and the electromagnet 234 circumferentially surrounds the sampling tube 22. The electrical input terminal and the electrical output terminal of the electromagnet 234 are respectively connected to the battery 113 through conducting wires. A proximity switch 233 is installed on one of the conducting wires, and the proximity switch 233 is installed on the bottom plate 11. Among them, when any one of the sample cans 24 rotates to the sampling position, the rotating mechanism 21 can trigger the proximity switch 233, so that the battery 113 supplies power to the electromagnet 234.

[0045] Specifically, when any one of the sample cans 24 is in the sampling position, the rotating mechanism 21 triggers the proximity switch 233, enabling the circuit between the battery 113 and the electromagnet 234 to be connected. The electromagnet 234 generates magnetism and then attracts the guiding plate 232 provided with the magnet to move downward. The sampling tube 22 moves downward synchronously under the drive of the guiding plate 232, so that the sampling tube 22 is hermetically docked with the air intake structure. At this time, the lifting spring 235 is in a stretched state. When the rotating mechanism 21 rotates again, all the sample cans 24 are in the non-sampling position, the proximity switch 233 is disconnected, the battery 113 no longer supplies power to the electromagnet 234, and the guiding plate 232 is no longer attracted by the magnetic force of the electromagnet 234. At this time, the guiding plate 232 moves upward under the pulling force of the lifting spring 235 and returns to its original position.

[0046] Such as Figure 3 And Figure 9As shown, in some embodiments of the present invention, a cylindrical receiving groove 114 is provided on the top surface of the bottom plate 11. The rotating mechanism 21 includes a turntable 211, a rotation driver 214, and a transmission structure 215; the turntable 211 is rotatably mounted in the receiving groove 114, and the turntable 211 is located between a plurality of support rods 13. A plurality of mounting positions are provided on the top surface of the turntable 211 at intervals around its center, and a plurality of sample cans 24 can be detachably mounted on the mounting positions in one-to-one correspondence. A plurality of contact blocks 212 are provided at intervals on the outer peripheral surface of the turntable 211, and the plurality of contact blocks 212 correspond to the plurality of sample cans 24 one-to-one; when the sample can 24 rotates to the collection position, the corresponding contact block 212 can contact and activate the proximity switch 233; the rotation driver 214 is fixedly mounted on the bottom plate 11, the transmission structure 215 is located outside the turntable 211, and the rotation driver 214 drives the turntable 211 to rotate through the transmission structure 215.

[0047] Specifically, the turntable 211 is annular and is embedded in the receiving groove 114. In order for the turntable 211 to rotate smoothly in the receiving groove 114, two thrust ball bearings 216 are provided between the bottom surface of the turntable 211 and the top surface of the receiving groove 114, one of the thrust ball bearings 216 is provided on the outer periphery of the bottom surface of the turntable 211, and the other is provided on the inner periphery of the bottom surface of the turntable 211. The rotation driver 214 is provided on the bottom surface of the bottom plate 11, and the bottom of the rotation driver 214 is higher than the bottom of the bracket 6; the transmission structure 215 is provided on the radial outside of the turntable 211, and the rotation driver 214 drives the turntable 211 to rotate through the transmission structure 215. The sample can 24 is mounted on the mounting position, and all the sample cans 24 can be rotated to the collection position under the drive of the turntable 211. When the sample can 24 is in the collection position, the contact block 212 corresponding to the sample can 24 can trigger the proximity switch 233, so that the lifting driver 23 drives the collection tube 22 to move down into the conduction position; when the sample can 24 rotates away from the collection position, the proximity switch 233 is closed, the lifting driver 23 is powered off, and the collection tube 22 moves up.

[0048] As Figure 9 and Figure 10 shown, in some embodiments, the transmission structure 215 may include an annular gear and a transmission gear. The annular gear is provided around the outer side surface of the turntable 211, the annular gear meshes with the transmission gear, and the transmission gear is connected to the power output part of the rotation driver 214. Preferably, the rotation driver 214 may be a motor. The motor drives the turntable 211 to rotate through the meshing transmission gear and annular gear. Those skilled in the art can select other structural forms of the rotation driver 214 and the transmission structure 215 according to needs, and the present invention does not make limitations.

[0049] In addition, the sample can 24 can be selected to be mounted on the mounting position by magnetic attraction, and the contact block 212 can be set in the shape of a hemisphere.

[0050] In some embodiments, the proximity switch 233 can also be activated without being pressed by the contact block 212. When the distance between the contact block 212 and the proximity switch 233 is less than a certain value, the proximity switch 233 can be triggered.

[0051] In other embodiments, the rotating mechanism 21 can also be an electric rotating table.

[0052] As Figure 6 shown, in some embodiments of the present invention, an annular clamping ring 213 is provided at the installation position. The clamping ring 213 circumferentially surrounds the sample tank 24. A notch allowing the disassembly and assembly of the sample tank 24 is provided on the side of the clamping ring 213. An elastic rubber cushion layer is provided on the inner side of the clamping ring 213, and the rubber cushion layer fits against the outer circumference of the sample tank 24.

[0053] Specifically, for convenient disassembly and assembly, the notch of the clamping ring 213 is oriented towards the outer circumference of the turntable 211; the rubber cushion layer provided inside the clamping ring 213 can clamp the sample tank 24 inside the clamping ring 213 to prevent the sample tank 24 from shaking during flight and sampling.

[0054] As Figure 7 and Figure 8 shown, in some embodiments of the present invention, the sample tank 24 includes a tank body 241, a sealing cover 242, and a cylindrical adsorption cylinder 243. An air inlet structure is provided at the top of the tank body 241. The bottom of the tank body 241 is detachably installed in the clamping ring 213. A cavity is provided inside the tank body 241, and the adsorption cylinder 243 is located in the cavity. A material taking port is provided at the bottom of the tank body 241, and the sealing cover 242 is detachably installed at the material taking port.

[0055] Specifically, the sealing cover 242 can be threadedly connected to the material taking port. The adsorption cylinder 243 can be made of cotton fabric or the like, which can preliminarily filter the air during the collection process and reduce the subsequent processing flow of the sample. The adsorption cylinder 243 can be taken out and replaced from the sample tank 24 through the material taking port.

[0056] In addition, an air outlet structure can be provided at the bottom of the sealing cover 242. Before the sample tank 24 is installed in the clamping ring 213, a vacuum pumping device is docked with the air outlet structure, and the sample tank 24 is evacuated through the vacuum pumping device, which is beneficial for introducing the gas in the collection tube 22 into the sample tank 24 when the collection tube 22 is communicated with the air inlet structure.

[0057] In some embodiments of the present invention, the air intake structure includes an air intake passage 244 and an elastic sealing film 245. The air intake passage 244 is disposed at the top of the tank body 241. The lower end of the air intake passage 244 communicates with the cavity. An elastic sealing film 245 is provided in the middle of the air intake passage 244, and the elastic sealing film 245 can be punctured by the bottom end of the sampling tube 22. A sealing ring 246 is provided in the upper part of the air intake passage 244, and the sealing ring 246 is located above the elastic sealing film 245; the inner side of the sealing ring 246 can be attached to the outer periphery of the sampling tube 22.

[0058] Specifically, when the sampling tube 22 moves downward to dock with the air intake structure, the sealing ring 246 can fix the sampling tube 22 to prevent the docking between the sampling tube 22 and the air intake structure from being damaged due to shaking during flight. The sampling tube 22 continues to move downward and punctures the elastic sealing film 245. Due to the existence of the pressure difference, the air in the sampling tube 22 flows into the sample tank 24. Of course, the bottom of the sampling tube 22 is set to a sharp shape.

[0059] As Figure 3 shown, in some embodiments of the present invention, the atmospheric environment detection device further includes a cleaning mechanism 3 capable of cleaning the sampling tube 22, and the cleaning mechanism 3 is installed on the mounting frame 1. During the process of gas sampling, large particulate pollutants may fall into the sampling tube 22, and the cleaning mechanism 3 can clean the sampling tube 22 in time to prevent the air outlet 222 from being blocked due to the gradual accumulation of large particulate pollutants. And during the flight of the aircraft, since the air flow rate above the air outlet 222 is relatively fast, the pressure inside the sampling tube 22 is greater than the pressure above the air outlet 222. Therefore, the sprayed cleaning liquid can move upward in the sampling tube 22 to clean the upper part of the sampling tube 22.

[0060] As Figure 3 and Figure 5As shown, in some embodiments of the present invention, the cleaning mechanism 3 includes a liquid storage tank 31, a diversion pipe 32, a nozzle 34, and a suction assembly 39. The bottom of the liquid storage tank 31 is fixedly connected to the bottom wall of the accommodation groove 114. The liquid storage tank 31 passes through the turntable 211 movably, and the turntable 211 can rotate around the liquid storage tank 31. The liquid storage tank 31 contains a cleaning liquid; a liquid adding hole 311 communicating with its interior is provided at the top of the liquid storage tank 31. The diversion pipe 32 extends along the axial direction of the liquid storage tank 31. The bottom of the liquid inlet end of the diversion pipe 32 is communicated with the bottom inside the liquid storage tank 31, and a check valve 33 is provided at the liquid inlet end of the diversion pipe 32; the liquid outlet end of the diversion pipe 32 is fixedly connected to the bottom surface of the top plate 12. A first delivery channel 35 and a second delivery channel 36 are provided in the top plate 12. The liquid inlet end of the first delivery channel 35 is hermetically communicated with the liquid outlet end of the diversion pipe 32, and the part where the liquid outlet end of the first delivery channel 35 is located extends towards the installation groove 121; the liquid inlet end of the second delivery channel 36 is communicated with the liquid outlet end of the first delivery channel 35, and the liquid outlet end of the second delivery channel 36 extends to the installation groove 121. The diameter of the second channel is smaller than that of the first channel. A third delivery channel 37 is provided on the guide plate 232. The liquid outlet end of the third delivery channel 37 is provided with a nozzle 34 facing the collection pipe 22 and is communicated with the inside of the collection pipe 22. The liquid outlet end of the third delivery channel 37 is located between the air inlet 221 and the air outlet hole 222 of the collection pipe 22. When the collection pipe 22 is in the non-conducting position, the liquid inlet end of the third delivery channel 37 is hermetically communicated with the liquid outlet end of the second delivery channel 36. The suction assembly 39 includes a piston block 391 and a flexible conduit 392. The piston block 391 is located at the liquid outlet end of the first delivery channel 35. The piston block 391 is provided with a diversion channel, and a second check valve 394 is provided in the diversion channel. The second check valve 394 only allows the cleaning liquid to flow from the first delivery channel 35 into the flexible conduit 392; a spring 393 is provided between the piston block 391 and the liquid outlet end of the first delivery channel 35; the flexible conduit 392 extends in the second delivery channel 36 and the third delivery channel 37. One end of the flexible conduit 392 is fixedly connected to the piston block 391 and is hermetically communicated with the diversion channel, and the other end of the flexible conduit 392 is hermetically connected to the nozzle 34. The diameter of the flexible conduit 392 is smaller than the diameters of the second delivery channel 36 and the third delivery channel 37.

[0061] It should be noted that the liquid storage tank 31 is arranged in the inner ring of the turntable 211. There is a gap between the outer periphery of the liquid storage tank 31 and the inner periphery of the turntable 211. The bottom of the liquid storage tank 31 is installed on the bottom plate 11. To prevent the turntable 211 from being frictionally obstructed by the cleaning mechanism 3 when rotating, a second bearing is provided around the outer periphery of the liquid storage tank 31 between the side part of the turntable 211 and the side part of the cleaning mechanism 3.

[0062] Specifically, the piston block 391 can move in the first delivery channel 35. When the guide plate 232 is attracted by the electromagnet 234 and moves downward, the flexible conduit 392 is pulled by the guide plate 232 and moves along with the guide plate 232. At this time, the piston block 391 connected to the flexible conduit 392 moves toward the liquid outlet end of the first delivery channel 35, and the spring 393 between the piston block 391 and the liquid outlet end of the first delivery channel 35 is compressed, causing the volume of the channel from the liquid inlet end of the diversion pipe 32 to the side of the piston block 391 facing away from the sampling cylinder 122 to increase and the pressure to decrease. The cleaning liquid enters the diversion pipe 32 and the first delivery channel 35 through the one-way valve 33. When the guide plate 232 loses the attraction of the electromagnet 234 and moves upward under the lifting of the lifting spring 235, the flexible conduit 392 becomes slack and no longer compresses the spring 393 between the piston block 391 and the liquid outlet end of the first delivery channel 35. During the process of the spring 393 returning to its original state, the piston block 391 moves toward the liquid inlet end of the first delivery channel 35. Since the one-way valve 33 does not allow the cleaning liquid in the diversion pipe 32 to flow downward, the volume of the channel from the liquid inlet end of the diversion pipe 32 to the side of the piston block 391 facing away from the sampling cylinder 122 decreases and the pressure increases. The cleaning liquid is pressed into the flexible conduit 392 through the second one-way valve 394. When the guide plate 232 returns to its original position, the cleaning liquid flows into the part of the flexible conduit 392 located in the third delivery channel 37 and is sprayed out from the nozzle 34 into the collection tube 22 to clean the collection tube 22.

[0063] It should be noted that the stroke of the piston block 391 movement should match the suction volume of the cleaning agent. Through the reciprocating movement of the piston block 391 during each sampling, a sufficient amount of cleaning liquid can be sprayed into the collection tube 22 after each sampling. Preferably, before the sampling work is carried out, the controller can control the lifting driver 23 to lift and lower to make the piston block 391 reciprocate, so that an appropriate amount of cleaning liquid is pre-stored in the diversion pipe 32 and the first delivery channel 35, facilitating the continuous suction of the cleaning liquid during subsequent sampling.

[0064] In addition, a liquid filling hole 311 is provided at the top of the liquid storage tank 31, and the liquid filling hole 311 is sealed with a detachable rubber plug. When the cleaning liquid in the liquid storage tank 31 is insufficient, the cleaning liquid can be replenished through the liquid filling hole 311.

[0065] In some embodiments, a suction pump can also be provided at the top of the liquid storage tank 31. The suction pump is connected to the diversion pipe 32 and can suck the cleaning liquid in the middle pipe 38 into the diversion pipe 32 and spray it out at the nozzle 34.

[0066] In some embodiments of the present invention, a middle tube 38 extending along the axial direction thereof is provided inside the liquid storage tank 31. The middle tube 38 is sleeved outside the diversion tube 32. A plurality of openings are provided at the lower end of the middle tube 38. A plurality of balance plates 381 spaced circumferentially along the middle tube 38 are provided outside the middle tube 38. The balance plates 381 extend in the vertical plane where the axis of the middle tube 38 is located.

[0067] Specifically, the plurality of openings provided at the lower end of the middle tube 38 enable the cleaning liquid to flow into the middle tube 38, facilitating the suction by the diversion tube 32. During flight, a sudden change in the flight speed may cause the cleaning liquid with inertia to impact the side wall of the liquid storage tank 31, thereby causing the atmospheric environment detection device to shake, which is not conducive to the stable flight of the atmospheric environment detection device. The plurality of balance plates 381 provided on the middle tube 38 can, to a certain extent, prevent the cleaning liquid from impacting the side wall of the liquid storage tank 31, helping to keep the atmospheric environment detection device in a stable flight state.

[0068] Next, the operation process of the atmospheric environment detection device of the present invention will be described again with reference to the drawings.

[0069] The controller controls the aircraft carrying the gas collection mechanism 2 to fly to the sampling area, and the rotation driver 214 drives the turntable 211 to rotate through the transmission structure 215. When a sample tank 24 rotates to the collection position, the contact block 212 corresponding to the sample tank 24 triggers the proximity switch 233, thereby connecting the circuit where the lifting driver 23 is located. The battery 113 starts to supply power to the lifting driver 23, making the electromagnet 234 energized to generate magnetism. The electromagnet 234 attracts the guide plate 232 to move downward, and the collection tube 22 moves downward together with the guide plate 232, and the lifting spring 235 is stretched. At this time, the cleaning liquid enters the diversion tube 32 and the first delivery channel 35. The collection tube 22 is clamped into the intake structure and fixed by the sealing ring 246, and the bottom of the collection tube 22 pierces the elastic sealing film 245, and the gas enters the sample tank 24 from the air outlet hole 222 of the collection tube 22. After sampling, the turntable 211 rotates, and the electromagnet 234 loses magnetism during the rotation of the turntable 211 and no longer attracts the guide plate 232. The guide plate 232 drives the collection tube 22 to return to its original position under the pulling of the lifting spring 235. At this time, the cleaning liquid is pressed into the flexible conduit 392 through the second one-way valve 394 and finally sprayed into the collection tube 22 from the nozzle 34 to complete the cleaning. The cleaned atmospheric environment detection device can sample again after changing the sampling area, and there will be no mutual interference between samples. Until all the sample tanks 24 are filled with atmospheric samples, the controller controls the aircraft to return to the starting point.

[0070] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0071] In addition, it should be noted that, in the various specific technical features described in the above specific embodiments, they can be combined in any appropriate manner without contradiction. To avoid unnecessary repetition, the present invention will not separately describe various possible combination methods.

[0072] Furthermore, any combination can be made between various different embodiments of the present invention, as long as it does not violate the idea of the present invention, and it should also be regarded as the content disclosed by the present invention.

Claims

1. An atmospheric environment detection device, characterized in that, It includes an aircraft, a gas collection mechanism (2), a battery (113), and a controller; A mounting frame (1) is provided in the middle of the aircraft. The mounting frame (1) has a top plate (12) and a bottom plate (11). The top plate (12) is located above the bottom plate (11). An installation groove (121) is provided at the bottom of the top plate (12). The installation groove (121) depresses from the bottom surface of the top plate (12) towards its top surface. A sampling cylinder (122) is provided on the bottom surface of the top plate (12). The sampling cylinder (122) surrounds the opening of the installation groove (121). The aircraft is configured to be able to fly in the air; The gas collection mechanism (2) includes a rotating mechanism (21), a collection pipe (22), a lifting drive (23), and a plurality of sample cans (24) with internal vacuum. The rotating mechanism (21) is fixedly installed in the mounting frame (1). The rotating mechanism (21) is configured to be able to rotate circumferentially. The sample cans (24) are detachably installed on the rotating mechanism (21). A plurality of the sample cans (24) are circumferentially spaced apart around the rotation center of the rotating mechanism (21). The rotating mechanism (21) can drive the sample cans (24) to rotate between a non-collection position and a collection position. An air intake structure is provided at the top of the sample can (24); The lifting drive (23) includes a connecting plate (231), a guide plate (232), a proximity switch (233), an annular electromagnet (234), and a cylindrical lifting spring (235); the installation groove (121) and the sampling cylinder (122) surround the guide plate (232), the collection tube (22) movably passes through the top plate (12) and the sampling cylinder (122), the collection tube (22) passes through the guide plate (232) and is fixedly connected to the guide plate (232), the top surface of the guide plate (232) is connected to the top surface of the installation groove (121) by the lifting spring (235), the lifting spring (235) surrounds the collection tube (22), the lifting spring (235) biases the guide plate (232) toward the top surface of the installation groove (121) in the natural state, and a magnet is provided on the bottom surface of the guide plate (232); the connecting plate (231) is located below the guide plate (232) and is fixedly installed in the sampling cylinder (122), the collection tube (22) movably passes through the connecting plate (231), the electromagnet (234) is installed on the connecting plate (231), and the electromagnet (234) circumferentially surrounds the collection tube (22); the electrical input end and the electrical output end of the electromagnet (234) are respectively connected to the battery (113) through conducting wires, and the proximity switch (233) is installed on one of the conducting wires, and the proximity switch (233) is installed on the bottom plate (11); wherein, when any one of the sample cans (24) rotates to the collection position, the rotation mechanism (21) can trigger the proximity switch (233) to supply power to the electromagnet (234) by the battery (113); An air inlet (221) communicating with the outside is provided at the top of the collection tube (22), and an air outlet hole (222) communicating with the air inlet (221) is provided at the bottom of the collection tube (22); the guide plate (232) can drive the collection tube (22) to linearly move between a conducting position and a non-conducting position; wherein, when the collection tube (22) is in the conducting position and the sample can (24) is in the collection position, the collection tube (22) can be hermetically docked with the air inlet structure to communicate the air outlet hole (222) with the inside of the sample can (24); when the collection tube (22) is in the non-conducting position, the air inlet structure seals the sample can (24); The controller is signal-connected to the aircraft, the rotation mechanism (21), and the lifting drive (23); the battery (113) is installed on the mounting frame (1) and can supply power to the aircraft, the rotation mechanism (21), and the lifting drive (23) respectively.

2. The atmospheric environment detection device according to claim 1, characterized in that, The mounting bracket (1) further includes a plurality of support rods (13). The outer sides of the bottom plate (11) and the top plate (12) are connected by the plurality of support rods (13). The rotation mechanism (21) is fixedly installed on the bottom plate (11), and the lifting driver (23) and the collection tube (22) are installed on the top plate (12).

3. The atmospheric environment detection device according to claim 2, wherein, The top surface of the bottom plate (11) is provided with a cylindrical receiving groove (114). The rotation mechanism (21) includes a turntable (211), a rotation driver (214) and a transmission structure (215). The turntable (211) is rotatably installed in the receiving groove (114), and the turntable (211) is located between the plurality of support rods (13). The top surface of the turntable (211) is provided with a plurality of mounting positions spaced around its center. The plurality of sample cans (24) can be detachably installed in the mounting positions one by one. The outer peripheral surface of the turntable (211) is provided with a plurality of contact blocks (212) at intervals, and the plurality of contact blocks (212) correspond to the plurality of sample cans (24) one by one. When the sample can (24) rotates to the collection position, the corresponding contact block (212) can contact and activate the proximity switch (233). The rotation driver (214) is fixedly installed on the bottom plate (11), the transmission structure (215) is located outside the turntable (211), and the rotation driver (214) drives the turntable (211) to rotate through the transmission structure (215).

4. The atmospheric environment detection device according to claim 3, wherein, The mounting position is provided with an annular snap ring (213). The snap ring (213) circumferentially surrounds the sample can (24). The side of the snap ring (213) is provided with a notch allowing the disassembly and assembly of the sample can (24). The inner side surface of the snap ring (213) is provided with an elastic rubber cushion layer, and the rubber cushion layer is attached to the outer circumference of the sample can (24).

5. The atmospheric environment detection device according to claim 4, wherein, The sample can (24) includes a can body (241), a sealing cover (242) and a cylindrical adsorption cylinder (243). The top of the can body (241) is provided with the air inlet structure. The bottom of the can body (241) is detachably installed in the snap ring (213). The interior of the can body (241) has a cavity, and the adsorption cylinder (243) is located in the cavity. The bottom of the can body (241) is provided with a material taking port, and the sealing cover (242) is detachably installed at the material taking port.

6. The atmospheric environment detection device according to claim 5, wherein, The intake structure includes an intake passage (244) and an elastic sealing film (245). The intake passage (244) is provided at the top of the tank body (241). The lower end of the intake passage (244) communicates with the cavity. The middle part of the intake passage (244) is provided with the elastic sealing film (245), and the elastic sealing film (245) can be punctured by the bottom end of the collection tube (22). A sealing ring (246) is provided in the upper part of the intake passage (244), and the sealing ring (246) is located above the elastic sealing film (245). The inner side of the sealing ring (246) can fit on the outer periphery of the collection tube (22).

7. The atmospheric environment detection device according to claim 3, wherein The atmospheric environment detection device further includes a cleaning mechanism (3) capable of cleaning the collection tube (22), and the cleaning mechanism (3) is installed on the mounting frame (1).

8. The atmospheric environment detection device according to claim 7, characterized in that, The cleaning mechanism (3) includes a liquid storage tank (31), a diversion tube (32), a spray head (34), and a suction assembly (39). The bottom of the liquid storage tank (31) is fixedly connected to the bottom wall of the accommodating groove (114). The liquid storage tank (31) passes through the turntable (211) movably, and the turntable (211) can rotate around the liquid storage tank (31). The liquid storage tank (31) contains a cleaning liquid. A liquid adding hole (311) communicating with its interior is provided at the top of the liquid storage tank (31). The diversion tube (32) extends along the axial direction of the liquid storage tank (31). The bottom of the liquid inlet end of the diversion tube (32) communicates with the bottom inside the liquid storage tank (31). A one-way valve (33) is provided at the liquid inlet end of the diversion tube (32). The liquid outlet end of the diversion tube (32) is fixedly connected to the bottom surface of the top plate (12). A first delivery channel (35) and a second delivery channel (36) are provided in the top plate (12). The liquid inlet end of the first delivery channel (35) is hermetically communicated with the liquid outlet end of the diversion tube (32). The part where the liquid outlet end of the first delivery channel (35) is located extends towards the installation groove (121). The liquid inlet end of the second delivery channel (36) is communicated with the liquid outlet end of the first delivery channel (35). The liquid outlet end of the second delivery channel (36) extends to the installation groove (121), and the diameter of the second delivery channel (36) is smaller than the diameter of the first delivery channel (35). A third delivery channel (37) is provided on the guide plate (232). The liquid outlet end of the third delivery channel (37) is provided with the spray head (34) facing the collection tube (22) and is communicated with the inside of the collection tube (22). The liquid outlet end of the third delivery channel (37) is located between the air inlet (221) and the air outlet hole (222) of the collection tube (22). When the collection tube (22) is in the non-conducting position, the liquid inlet end of the third delivery channel (37) is hermetically communicated with the liquid outlet end of the second delivery channel (36). The suction assembly (39) includes a piston block (391) and a flexible conduit (392). The piston block (391) is located at the liquid outlet end of the first delivery channel (35). The piston block (391) is provided with a diversion channel, and a second one-way valve (394) is arranged in the diversion channel. The second one-way valve (394) only allows the cleaning liquid to flow from the first delivery channel (35) into the flexible conduit (392). A spring (393) is arranged between the piston block (391) and the liquid outlet end of the first delivery channel (35). The flexible conduit (392) extends in the second delivery channel (36) and the third delivery channel (37). One end of the flexible conduit (392) is fixedly connected to the piston block (391) and is in sealed communication with the diversion channel. The other end of the flexible conduit (392) is sealingly connected to the nozzle (34). The diameter of the flexible conduit (392) is smaller than the diameters of the second delivery channel (36) and the third delivery channel (37).

9. The atmospheric environment detection device according to claim 8, characterized in that, An intermediate pipe (38) extending along its axial direction is arranged inside the liquid storage tank (31). The intermediate pipe (38) is sleeved outside the diversion pipe (32). A plurality of openings are arranged at the lower end of the intermediate pipe (38). A plurality of balance plates (381) are arranged outside the intermediate pipe (38) and are circumferentially spaced along the intermediate pipe (38). The balance plates (381) extend in the vertical plane where the axis of the intermediate pipe (38) is located.

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