CN112924624B - Movable type environment gas detector - Google Patents
Movable type environment gas detector Download PDFInfo
- Publication number
- CN112924624B CN112924624B CN202110110640.8A CN202110110640A CN112924624B CN 112924624 B CN112924624 B CN 112924624B CN 202110110640 A CN202110110640 A CN 202110110640A CN 112924624 B CN112924624 B CN 112924624B
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- rotating
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- wall
- rotating rod
- belt pulley
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The invention discloses a movable environmental gas detector, and particularly relates to the field of gas detection equipment. According to the invention, the air exhaust mechanism is arranged, so that the automatic suction detection work of the gas can be completed, the suction detection of the gas with different heights and directions can be carried out, the detection accuracy is improved, the detection of the environment gas detector is more comprehensive, and the detection performance and the detection accuracy of the environment gas detector are improved.
Description
Technical Field
The invention relates to the technical field of gas detection equipment, in particular to a mobile environment gas detector.
Background
The portable environmental gas detector is an instrument for detecting gas leakage concentration, and mainly utilizes a gas sensor to detect the types of gases existing in the environment, the gas sensor is a sensor for detecting the components and the content of the gases, and the definition of the gas sensor is generally considered to be based on the classification of detection targets, that is, the sensor for detecting the components and the concentration of the gases is called as the gas sensor, no matter whether the gas sensor is a physical method or a chemical method.
Present portable ambient gas detector is mostly fixed installation, and the measuring range is limited, can't carry out quick detection to regional height of difference and direction when inhaling the detection to gas, detects not comprehensive enough, and the use limitation is higher to can influence the accuracy of the detection of ambient gas detector.
Disclosure of Invention
In order to overcome the above-mentioned defects in the prior art, an embodiment of the present invention provides a mobile ambient gas detector, and the problems to be solved by the present invention are: present portable ambient gas detector is mostly fixed installation, and the measuring range is limited, can't carry out quick detection to regional height of difference and direction when inhaling the detection to gas, detects not comprehensive enough, and the use limitation is higher to can influence the accuracy of the detection of ambient gas detector.
In order to achieve the purpose, the invention provides the following technical scheme: a movable environmental gas detector comprises a detection box body, a detector body and a movable base, wherein the detector body is positioned below the inside of the detection box body, the movable base is positioned below the outside of the detection box body, an air exhaust mechanism is arranged inside the detection box body and comprises a rotating rod and a rotating outer cylinder, the rotating outer cylinder is positioned above the inside of the detection box body, the rotating rod penetrates through the rotating outer cylinder and is in sliding connection with the inside of the rotating outer cylinder, the bottom end of the rotating rod penetrates through the rotating outer cylinder and extends to the below of the outside of the rotating outer cylinder, the bottom end of the rotating rod is rotatably connected with a piston sleeve through a bearing, one side of the outer wall of the piston sleeve is in sliding connection with one side of the inner wall of the detection box body through a sliding block frame, a rubber piston block is slidably connected with the inside of the piston sleeve, the bottom end of the rubber piston block is fixedly connected with a fixed supporting rod, and the rubber piston block is connected with the bottom end of the inner wall of the detection box body through the fixed supporting rod, the outer wall of the rotating outer cylinder is provided with a first chute and a second chute which are arranged in a crossed manner, a rotating ring is arranged on one side of the rotating outer cylinder, the outer wall of the rotating ring is fixedly connected with a pushing shaft and a limiting plate, the pushing shaft is connected with the first chute and the second chute in a sliding way, one end of the rotating ring is fixedly connected with a first belt pulley through a rotating shaft, the outer wall of the bottom end of the rotating rod is provided with a connecting plate, the rotating rod is rotatably connected with the connecting plate through a bearing, one end of the connecting plate far away from the rotating rod is fixedly connected with a connecting frame, an arc-shaped groove is formed in the connecting frame, a connecting column is connected in the arc-shaped groove in a sliding manner, a rotating plate is fixedly connected to one side of the connecting column, one side of the rotating plate is rotatably connected with a second belt pulley through a rotating shaft, and one side, far away from the rotating plate, of the second belt pulley is rotatably connected with a driving motor through a rotating shaft.
Preferably, the dwang top runs through and detects the box and extends to and detects the outside top of box, dwang top both sides fixedly connected with intake pipe.
Preferably, the upper part and the lower part of the rotary outer cylinder are connected with one side of the inner wall of the detection box body through the mounting frame, and the rotary outer cylinder is rotatably connected with the mounting frame through a bearing.
Preferably, the dwang specifically is hollow structure, a check valve is installed to the inside top of dwang.
Preferably, piston sleeve one side fixedly connected with gas vent, gas vent internally mounted has the second check valve, link to each other through the pipeline between gas vent one side and the detector body.
Preferably, the first belt pulley and the second belt pulley are in transmission connection through a belt.
Preferably, detect box outer wall one side and install flexible handrail, remove the base bottom and install the universal wheel, and the universal wheel specifically is the universal wheel that has the brake.
Preferably, the outer wall of the rotating rod is fixedly connected with a sliding clamping strip, the surface of the inner wall of the rotating outer barrel is provided with a sliding clamping groove matched with the sliding clamping strip, and the rotating rod is connected with the rotating outer barrel in a sliding mode.
Preferably, openings are formed above and below the rotary outer cylinder.
The invention has the technical effects and advantages that:
1. the invention can drive the rotating plate to rotate by utilizing the work of the driving motor through the arranged air exhaust mechanism, can lead the connecting post to slide in the arc-shaped groove of the connecting frame by utilizing the rotation of the rotating plate, thereby driving the connecting frame to move up and down, the connecting frame can drive the connecting plate at one side to move up and down synchronously by moving up and down, the rotating rod is connected with the connecting plate through the bearing in a rotating way, thereby driving the rotating rod to move up and down along the inner wall of the rotating outer cylinder, and can drive the piston sleeve at the bottom end to move up and down by utilizing the rotating rod to move up and down, when the piston sleeve moves up, because the rubber piston block is connected in the piston sleeve in a sliding way, the bottom end of the rubber piston block is fixedly connected with the fixed supporting rod, thereby when the piston sleeve moves up, external gas enters the rotating rod through the air inlet pipe and then enters the piston sleeve through the rotating rod, the automatic gas suction device has the advantages that external gas can be automatically sucked into the piston sleeve, when the piston sleeve moves downwards, the piston sleeve is extruded by the rubber piston block, sucked gas in the piston sleeve enters the detector body on one side through the exhaust port and the pipeline, so that the detection can be performed through the gas sensor in the detector body, the reverse circulation of the gas can be effectively avoided through the matched use of the first check valve arranged above the inner part of the rotating rod and the second check valve arranged in the exhaust port, the gas can be conveniently sucked, in addition, the ascending and descending of the rotating rod and the gas inlet pipes on the two sides of the top end of the rotating rod can be conveniently performed with the suction detection of the gas with different heights, and the detection accuracy is improved;
2. the invention can drive the second belt pulley to rotate by utilizing the work of the driving motor, the first belt pulley and the second belt pulley are connected by a belt transmission, so the first belt pulley can be driven to rotate, the rotating ring can be driven to rotate by utilizing the rotation of the first belt pulley, the pushing shaft and the limiting plate of the outer wall can be driven to rotate by utilizing the rotation of the rotating ring, when the pushing shaft rotates, one end of the pushing shaft is contacted with the first chute of the outer wall of the rotating outer cylinder, so the rotating outer cylinder can be driven to synchronously rotate, when the other pushing shaft rotates into the second chute, the rotating outer cylinder can be driven to reversely rotate, namely return to the original position, so the rotating shaft can be driven to rotate by utilizing the rotation of the rotating outer cylinder, the air inlet pipes at two sides of the top end can be driven to synchronously rotate by the rotation of the rotating outer cylinder, and the rotating rod and the air inlet pipe can be rotationally pumped, the air exhaust range is enlarged, so that the purpose of enlarging the detection range can be achieved, and the detection performance and accuracy of the environmental gas detector can be improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of the connecting frame of the present invention;
FIG. 3 is a schematic structural view of the rotary outer cylinder of the present invention;
FIG. 4 is a schematic view of a rotating ring according to the present invention;
fig. 5 is a schematic structural view of the rotating lever of the present invention.
The reference signs are: 1. detecting the box body; 2. a detector body; 3. an air extraction mechanism; 301. rotating the rod; 302. rotating the outer cylinder; 303. a piston sleeve; 304. a slider frame; 305. a rubber piston block; 306. fixing the supporting rod; 307. a first chute; 308. a second chute; 309. a rotating ring; 310. pushing the shaft; 311. a limiting plate; 312. a first pulley; 313. a connecting plate; 314. a connecting frame; 315. an arc-shaped slot; 316. connecting columns; 317. a rotating plate; 318. a second pulley; 319. a drive motor; 320. an air inlet pipe; 4. a mounting frame; 5. a first check valve; 6. an exhaust port; 7. a second one-way valve; 8. a telescopic handrail; 9. a universal wheel; 10. sliding the clamping strip; 11. an opening; 12. and moving the base.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The mobile environmental gas detector of one embodiment of the invention comprises a detection box body 1, a detection instrument body 2 and a mobile base 12, wherein the detection instrument body 2 is positioned below the inner part of the detection box body 1, the mobile base 12 is positioned below the outer part of the detection box body 1, an air suction mechanism 3 is arranged inside the detection box body 1, the air suction mechanism 3 comprises a rotating rod 301 and a rotating outer cylinder 302, the rotating outer cylinder 302 is positioned above the inner part of the detection box body 1, the rotating rod 301 penetrates through the rotating outer cylinder 302 and is in sliding connection with the inner part of the rotating outer cylinder 302, the bottom end of the rotating rod 301 penetrates through the rotating outer cylinder 302 and extends to the lower part of the outer part of the rotating outer cylinder 302, the bottom end of the rotating rod 301 is rotatably connected with a piston sleeve 303 through a bearing, one side of the outer wall of the piston sleeve 303 is slidably connected with one side of the inner wall of the detection box body 1 through a sliding block frame 304, and the inner part of the piston sleeve 303 is slidably connected with a rubber piston block 305, rubber piston piece 305 bottom fixedly connected with fixed branch 306, and rubber piston piece 305 links to each other through fixed branch 306 and detection box 1 inner wall bottom, it is provided with first chute 307 and second chute 308 to rotate urceolus 302 outer wall, and first chute 307 and second chute 308 are the crossing setting, it is provided with swivel 309 to rotate urceolus 302 one side, swivel 309 outer wall fixedly connected with promotes axle 310 and limiting plate 311, and promotes all through sliding connection between axle 310 and first chute 307 and the second chute 308, swivel 309 one end is through pivot fixedly connected with first belt pulley 312, dwang 301 bottom outer wall is provided with connecting plate 313, and is connected through the bearing rotation between dwang 301 and the connecting plate 313, the one end fixedly connected with link 314 that dwang 301 was kept away from to connecting plate 313, the inside arc wall 315 that has seted up of link 314, the inside sliding connection of arc wall 315 has spliced pole 316, spliced pole 316 one side fixedly connected with rotor plate 317, rotor plate 317 one side is rotated through the pivot and is connected with second belt pulley 318, one side that rotor plate 317 was kept away from to second belt pulley 318 is connected with driving motor 319 through the pivot even rotation.
Rotate urceolus 302 top and below and all link to each other with detection box 1 inner wall one side through mounting bracket 4, and rotate between urceolus 302 and the mounting bracket 4 and be connected through the bearing rotation.
The first pulley 312 and the second pulley 318 are connected by a belt transmission.
The detection box body is characterized in that a telescopic handrail 8 is installed on one side of the outer wall of the detection box body 1, universal wheels 9 are installed at the bottom end of the movable base 12, and the universal wheels 9 are specifically universal wheels with brakes.
The upper and lower parts of the rotary outer cylinder 302 are provided with openings 11.
As shown in fig. 1 to 5, the implementation scenario specifically includes: in actual use, by turning on the driving motor 319 to work, the second belt pulley 318 and the rotating plate 317 can be driven to rotate simultaneously by working with the driving motor 319, and the effect at this moment is: (1) the connecting column 316 can slide in the arc-shaped groove 315 of the connecting frame 314 by rotating the rotating plate 317, so that the connecting frame 314 can be driven to move up and down, the connecting plate 313 on one side can be driven to move up and down synchronously by moving the connecting frame 314 up and down, the rotating rod 301 is rotatably connected with the connecting plate 313 through a bearing, so that the rotating rod 301 can be driven to move up and down, when the rotating rod 301 moves up and down, as the sliding clamping strip 10 is fixedly connected to the outer wall of the rotating rod 301, the sliding clamping groove matched with the sliding clamping strip 10 is formed on the surface of the inner wall of the rotating outer barrel 302, so that the rotating rod 301 can move up and down along the inner wall of the rotating outer barrel 302, the piston sleeve 303 at the bottom end can be driven to move up and down by moving up and down the rotating rod 301, when the piston sleeve 303 moves up, because the rubber piston block 305 is slidably connected in the piston sleeve 303, the bottom end of the rubber piston block 305 is fixedly connected with the fixed support rod 306, when the piston sleeve 303 moves upwards, external gas enters the rotating rod 301 through the gas inlet pipe 320, and then enters the piston sleeve 303 through the rotating rod 301, so that external gas can be automatically sucked into the piston sleeve 303, when the piston sleeve 303 moves downwards, the sucked gas inside the piston sleeve 303 enters the detector body 2 on one side through the exhaust port 6 and the pipeline due to the extrusion of the rubber piston block 305, so that the detection can be carried out through the gas sensor inside the detector body 2, through the matching use between the first check valve 5 installed above the inside of the rotating rod 301 and the second check valve 7 installed inside the exhaust port 6, the reverse circulation of the gas can be effectively avoided, thereby facilitating the suction of the gas, and the gas inlet pipes 320 on the two sides of the top end of the rotating rod 301 ascend and descend, the gas detection device can conveniently perform suction detection on the gas with different heights, and improves the detection accuracy; (2) the first belt pulley 312 can be driven to rotate by the rotation of the second belt pulley 318 and the first belt pulley 312 and the second belt pulley 318 are connected by the belt transmission, the rotating ring 309 can be driven to rotate by the rotation of the first belt pulley 312, the pushing shaft 310 and the limiting plate 311 of the outer wall can be driven to rotate by the rotation of the rotating ring 309, when the pushing shaft 310 rotates, one end of the pushing shaft 310 contacts with the first chute 307 of the outer wall of the rotating outer cylinder 302, so that the rotating outer cylinder 302 can be driven to rotate synchronously, when another pushing shaft 310 rotates into the second chute 308, the rotating outer cylinder 302 can be driven to rotate reversely and return, when the limiting plate 311 passes through the opening 11 on the upper side and the lower side of the rotating outer cylinder 302, the rotating outer cylinder 302 can be limited, the rotating outer cylinder 302 can be prevented from rotating reversely, a locking effect can be achieved, so that the rotating rod 301 can be driven to rotate by the rotation of the rotating outer cylinder 302, dwang 301 rotates the intake pipe 320 synchronous rotation that can drive the top both sides, thereby can rotate at dwang 301 and intake pipe 320 and bleed, promote the scope of bleeding, thereby can reach the purpose that promotes the detection range, and then can promote the detection performance and the accuracy of environmental gas detector, this embodiment has specifically solved and has had the environmental gas detector to detect and can't detect not equidirectional and not co-altitude among the prior art, detect not accurate enough problem.
And finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (6)
1. The utility model provides a portable ambient gas detector, is including detecting box (1), detector body (2) and moving base (12), detector body (2) are located and detect box (1) inside below, moving base (12) are located and detect box (1) outside below, its characterized in that: detect box (1) inside and be provided with air exhaust mechanism (3), air exhaust mechanism (3) includes dwang (301) and rotation urceolus (302), it is located the inside top of detection box (1) to rotate urceolus (302), dwang (301) run through rotate urceolus (302) and with rotate urceolus (302) inside sliding connection, dwang (301) bottom run through rotate urceolus (302) and extend to rotate urceolus (302) outside below, dwang (301) bottom is rotated through the bearing and is connected with piston sleeve (303), and piston sleeve (303) outer wall one side through slider frame (304) and detection box (1) inner wall one side sliding connection, piston sleeve (303) inside sliding connection has rubber piston piece (305), rubber piston piece (305) bottom fixedly connected with fixed strut (306), and rubber piston piece (305) link to each other through fixed strut (306) and detection box (1) inner wall bottom, the outer wall of the rotating outer barrel (302) is provided with a first chute (307) and a second chute (308), the first chute (307) and the second chute (308) are arranged in a crossed mode, one side of the rotating outer barrel (302) is provided with a rotating ring (309), the outer wall of the rotating ring (309) is fixedly connected with a pushing shaft (310) and a limiting plate (311), the pushing shaft (310) and the first chute (307) and the second chute (308) are both connected through sliding connection, one end of the rotating ring (309) is fixedly connected with a first belt pulley (312) through a rotating shaft, the outer wall of the bottom end of the rotating rod (301) is provided with a connecting plate (313), the rotating rod (301) is rotatably connected with the connecting plate (313) through a bearing, one end of the rotating rod (301) is far away from the connecting plate (313) is fixedly connected with a connecting frame (314), and an arc-shaped groove (315) is formed inside the connecting frame (314), a connecting column (316) is connected to the inner part of the arc-shaped groove (315) in a sliding manner, a rotating plate (317) is fixedly connected to one side of the connecting column (316), a second belt pulley (318) is rotatably connected to one side of the rotating plate (317) through a rotating shaft, and a driving motor (319) is rotatably connected to one side, far away from the rotating plate (317), of the second belt pulley (318) through the rotating shaft;
the top end of the rotating rod (301) penetrates through the detection box body (1) and extends to the upper part outside the detection box body (1), air inlet pipes (320) are fixedly connected to two sides of the top end of the rotating rod (301), the upper part and the lower part of the rotating outer barrel (302) are connected with one side of the inner wall of the detection box body (1) through mounting racks (4), the rotating outer barrel (302) is rotatably connected with the mounting racks (4) through bearings, the rotating rod (301) is specifically of a hollow structure, and a first check valve (5) is mounted above the inner part of the rotating rod (301);
the connecting column (316) can slide in the arc-shaped groove (315) of the connecting frame (314) by rotating the rotating plate (317), thereby driving the connecting frame (314) to move up and down, the connecting plate (313) on one side can be driven to move up and down synchronously by using the connecting frame (314) to move up and down, thereby driving the rotating rod (301) to move up and down, when the rotating rod (301) moves up and down, the rotating rod (301) is driven to move up and down along the inner wall of the rotating outer cylinder (302), the piston sleeve (303) at the bottom end is driven to move up and down by using the rotating rod (301) to move up and down, when the piston sleeve (303) moves up, thereby when the piston sleeve (303) moves up, the external gas enters the inside of the rotating rod (301) through the gas inlet pipe (320), and then enters the inside of the piston sleeve (303) through the rotating rod (301), thereby automatically sucking the outside air into the piston sleeve (303);
the second belt pulley (318) rotates, the first belt pulley (312) is driven to rotate by the belt transmission connection between the first belt pulley (312) and the second belt pulley (318), the rotating ring (309) is driven to rotate by the rotation of the first belt pulley (312), the pushing shaft (310) and the limiting plate (311) which are arranged on the outer wall are driven to rotate by the rotation of the rotating ring (309), when the pushing shaft (310) rotates, one end of the pushing shaft (310) is in contact with the first chute (307) on the outer wall of the rotating outer barrel (302) to drive the rotating outer barrel (302) to rotate synchronously, when the other pushing shaft (310) rotates into the second chute (308), the rotating outer barrel (302) is driven to rotate reversely, namely return to the original position, when the limiting plate (311) penetrates through the openings (11) formed in the upper part and the lower part of the rotating outer barrel (302), the rotating outer barrel (302) can be limited, avoid rotating urceolus (302) antiport, play the effect of locking, rotate through utilizing rotation urceolus (302) and drive dwang (301) and rotate, dwang (301) rotate intake pipe (320) that can drive the top both sides and rotate in step, carry out the rotation at dwang (301) and intake pipe (320) and bleed, promote the scope of bleeding.
2. The portable ambient gas detector of claim 1, wherein: piston sleeve (303) one side fixedly connected with gas vent (6), gas vent (6) internally mounted has second check valve (7), link to each other through the pipeline between gas vent (6) one side and detector body (2).
3. The portable ambient gas detector of claim 1, wherein: the first belt pulley (312) is in transmission connection with the second belt pulley (318) through a belt.
4. The portable ambient gas detector of claim 1, wherein: detect box (1) outer wall one side and install flexible handrail (8), remove base (12) bottom and install universal wheel (9), and universal wheel (9) are specifically for having the universal wheel of brake.
5. The portable ambient gas detector of claim 1, wherein: dwang (301) outer wall fixedly connected with slip card strip (10), rotate urceolus (302) inner wall surface and offer the slip draw-in groove with slip card strip (10) looks adaptation, and dwang (301) and rotate sliding connection between urceolus (302).
6. The portable ambient gas detector of claim 1, wherein: openings (11) are formed above and below the rotary outer cylinder (302).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110110640.8A CN112924624B (en) | 2021-01-27 | 2021-01-27 | Movable type environment gas detector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110110640.8A CN112924624B (en) | 2021-01-27 | 2021-01-27 | Movable type environment gas detector |
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| CN112924624A CN112924624A (en) | 2021-06-08 |
| CN112924624B true CN112924624B (en) | 2022-08-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114674976B (en) * | 2022-02-23 | 2023-12-05 | 福建省永正生态科技有限公司 | Carbon monoxide concentration detector for occupational health detection |
| CN114965872B (en) * | 2022-04-27 | 2023-10-13 | 重庆科技学院 | Electronic nose and method for multi-sensor data fusion |
| CN114563538B (en) * | 2022-04-30 | 2022-07-05 | 南通诺澳电子有限公司 | Energy-concerving and environment-protective type gas monitor for environmental monitoring |
| CN116643013B (en) * | 2023-07-27 | 2023-09-19 | 沈阳觅寻科技有限公司 | Online gas detector based on wireless communication technology |
| CN116754020B (en) * | 2023-08-21 | 2023-11-17 | 山东省林业科学研究院 | Temperature and humidity detection equipment and detection method for forest fire prevention survey |
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| US7509836B2 (en) * | 2005-09-01 | 2009-03-31 | Li-Cor, Inc. | Gas flux system chamber design and positioning method |
| CN211877905U (en) * | 2019-12-05 | 2020-11-06 | 云南建研建设工程检测鉴定有限公司 | Air detection device |
| CN211954889U (en) * | 2020-03-18 | 2020-11-17 | 江西省贝源检测技术有限公司 | Atmospheric sampling device for environmental detection |
| CN111323546A (en) * | 2020-04-09 | 2020-06-23 | 湖南工学院 | Agricultural greenhouse indoor environment detection device and method |
| CN212391298U (en) * | 2020-05-08 | 2021-01-22 | 重庆市疾病预防控制中心(重庆市救灾防病应急处理中心) | Improved air detector |
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