CN113702573A - Portable air monitoring equipment for mine - Google Patents
Portable air monitoring equipment for mine Download PDFInfo
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- CN113702573A CN113702573A CN202110812333.4A CN202110812333A CN113702573A CN 113702573 A CN113702573 A CN 113702573A CN 202110812333 A CN202110812333 A CN 202110812333A CN 113702573 A CN113702573 A CN 113702573A
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- box body
- air monitoring
- portable air
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 19
- 238000012806 monitoring device Methods 0.000 claims description 17
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000003245 coal Substances 0.000 description 6
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 240000007643 Phytolacca americana Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
-
- 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
-
- 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
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
-
- 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
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/004—CO or CO2
-
- 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
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/0047—Organic compounds
-
- 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
- G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display
- G01N33/0063—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display using a threshold to release an alarm or displaying means
-
- 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
- G01N33/22—Fuels; Explosives
- G01N33/225—Gaseous fuels, e.g. natural gas
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Dispersion Chemistry (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The invention discloses portable air monitoring equipment for a mine, which comprises a box body and a box cover, wherein a display screen is embedded in one side in the box body, an inner box is arranged in the box body, a clamping groove is reserved between the inner box and an inner cavity of the box body, a telescopic supporting rod is clamped in the clamping groove, one end of the telescopic supporting rod is connected with the inner box through a pin shaft, the other end of the telescopic supporting rod is connected with a bracket, a plurality of monitors are arranged in the inner box, a writing table is arranged on one side of each monitor, and a limiting device is arranged on the other side of each monitor. According to the mine air detector, the telescopic supporting rod and the bracket are overturned and stored in the clamping groove, so that the occupied area can be effectively reduced, and meanwhile, the vertical orientation of the telescopic supporting rod can be limited through the limiting device, so that the monitoring height of the monitor is raised, air in a mine can be detected at a high position, manual long-time grabbing is not needed, and the mine air detector is easier and more convenient to use.
Description
Technical Field
The invention relates to the field of mine air monitoring, in particular to portable air monitoring equipment for a mine.
Background
The coal industry is one of important energy industries in China, and the national coal yield reaches about 35.2 hundred million tons in 2011, which accounts for about 77.8 percent of the total national energy production. At present, underground coal mines in China are gas mines, and disasters such as gas coal dust explosion, coal and gas outburst and the like bring huge pressure on safe production of coal.
In the prior art, the used mine air monitoring equipment is inconvenient to carry, the equipment needs to be manually held when the mine air monitoring equipment is used, the monitoring equipment needs to be grabbed for a period of time to enable the monitoring equipment to fully acquire various data of air, and therefore the accuracy of the data is guaranteed, but the space in a mine is small, the environment is complex, and the mine air monitoring equipment is inconvenient to use.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides portable air monitoring equipment for a mine.
In order to solve the technical problems, the invention provides the following technical scheme:
the invention relates to portable air monitoring equipment for a mine, which comprises a box body and a box cover, wherein the box cover is hinged to one side of the top end of the box body, a corresponding lock catch is arranged on one side, far away from the hinge joint, of the box body and the box cover, a connecting folding rod is arranged on the inner sides of the box body and the box cover, close to the hinge joint, a display screen is embedded in one side of the inner part of the box body, a controller is arranged at the bottom of the display screen, a lamp holder is arranged on one side of the display screen, a plurality of lamp belts are uniformly arranged on the periphery of the lamp holder, an alarm is arranged at the bottom of the lamp holder, an inner box is arranged in the box body, a clamping groove is reserved between the inner box and the inner cavity of the box body, a telescopic supporting rod is clamped in the clamping groove, one end of the telescopic supporting rod is connected with the inner box through a pin shaft, the other end of the telescopic supporting rod is connected with a bracket, and a plurality of monitors are arranged in the inner box, one side of the monitor is provided with a writing table, and the other side of the monitor is provided with a limiting device.
As a preferred technical scheme, the limiting device is positioned on one side of a connecting pin shaft of a deflection telescopic supporting rod and comprises a sliding box, two ends of the sliding box are of an open structure, two sides of the top end surface of the sliding box are provided with notches, the top end of each notch is provided with a poking rod, a limiting inserting plate is embedded in the sliding box in a sliding and clamping mode, the top of the inner end of each limiting inserting plate is connected with the poking rod, and the outer end of each limiting inserting plate is provided with a bayonet.
The portable air monitoring device for mine shafts as claimed in, wherein the bayonet is of a U-like structure, a rubber anti-slip pad is arranged on the inner side of the bayonet, and the radial distance of the bayonet is slightly larger than the diameter of the telescopic support rod.
As a preferred technical scheme, the bracket comprises a supporting plate, guardrails and spring clamps, two sides of the bottom end of the supporting plate are connected with the telescopic supporting rods, the guardrails are arranged on the peripheral edges of the top end of the supporting plate, and the spring clamps are arranged on one sides of the guardrails.
According to a preferable technical scheme of the invention, the surface of the guardrail on any side is provided with a through wire opening, the surfaces of the guardrail and the supporting plate are both provided with rubber layers, and the outer layer of a chuck of the spring clamp is coated with the rubber layers.
As a preferred technical scheme of the invention, a wiring socket is arranged between the lamp holder and the alarm, a wire storage bag is arranged on one side of the wiring socket, and the controller is electrically connected with the display screen, the lamp holder, the alarm and the wiring socket.
According to a preferable technical scheme of the invention, a storage battery is arranged in front of the box cover, a charging interface is arranged on the outer side of the box cover, a rubber dustproof pad is arranged in the charging interface, and a handle is arranged on the outer side of the box body.
Compared with the prior art, the invention has the following beneficial effects:
according to the mine air monitoring device, the telescopic supporting rod and the bracket are overturned and stored in the clamping groove, so that the occupied area can be effectively reduced, the vertical orientation of the telescopic supporting rod can be limited through the limiting device, the monitoring height of the monitor is raised, air in a mine can be detected at a high position, manual long-time grabbing is not needed, the mine air monitoring device is easier and more convenient to use, and meanwhile the whole mine air monitoring device can be stored through the box body and the box cover, so that the whole carrying of the mine air monitoring device is more convenient.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is another schematic view of the overall structure of the present invention;
FIG. 3 is a schematic view of the structure of the position limiting device of the present invention;
in the figure: 1. a box body; 2. a box cover; 3. locking; 4. connecting the folding rod; 5. a display screen; 6. a controller; 7. a lamp socket; 8. a light strip; 9. an alarm; 10. an inner case; 11. a card slot; 12. a telescopic strut; 13. a bracket; 14. a monitor; 15. a writing table; 16. a limiting device; 17. a slide cassette; 18. a notch; 19. a limiting inserting plate; 20. a poke rod; 21. a bayonet; 22. a support plate; 23. a guardrail; 24. a spring clip; 25. a through wire opening; 26. a connection socket; 27. a wire storage bag.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example 1
As shown in figures 1-3, the invention provides a portable air monitoring device for a mine, which comprises a box body 1 and a box cover 2, wherein the box cover 2 is hinged on one side of the top end of the box body 1, a corresponding lock catch 3 is arranged on one side, far away from the hinged side, of the box body 1 and the box cover 2, a connecting folding rod 4 is arranged on the inner sides of the box body 1 and the box cover 2, close to the hinged part, a display screen 5 is embedded on one side of the inner part of the box body 1, a controller 6 is arranged at the bottom of the display screen 5, a lamp holder 7 is arranged on one side of the display screen 5, a plurality of lamp strips 8 are uniformly arranged on the periphery of the lamp holder 7, an alarm 9 is arranged at the bottom of the lamp holder 7, an inner box 10 is arranged in the box body 1, a clamping groove 11 is reserved between the inner box 10 and the inner cavity of the box body 1, a telescopic supporting rod 12 is clamped in the clamping groove 11, one end of the telescopic supporting rod 12 is connected with the inner box 10 through a pin shaft, and the other end of the telescopic supporting rod 12 is connected with a bracket 13, the inner box 10 is provided with a plurality of monitors 14 inside, one side of each monitor 14 is provided with a writing desk 15, and the other side of each monitor 14 is provided with a limiting device 16.
Furthermore, the limiting device 16 is located on one side of the connecting pin shaft of the deflection telescopic supporting rod 12, the limiting device 16 comprises a sliding box 17, two ends of the sliding box 17 are both of an open structure, notches 18 are formed in two sides of the surface of the top end of the sliding box 17, a poking rod 20 is arranged on the top end of each notch 18, a limiting insertion plate 19 is embedded in the sliding box 17 in a sliding and clamping mode, the top of the inner end of the limiting insertion plate 19 is connected with the poking rod 20, and a bayonet 21 is formed in the outer end of the limiting insertion plate 19.
The bayonet 21 is of a U-shaped structure, a rubber anti-slip pad is arranged on the inner side of the bayonet 21, and the radial distance of the bayonet 21 is slightly larger than the diameter of the telescopic supporting rod 12.
The surface of the guardrail 23 on any side is provided with a through wire opening 25, the surfaces of the guardrail 23 and the supporting plate 22 are both provided with rubber layers, and the outer layer of a chuck of the spring clamp 24 is coated with the rubber layers.
Be provided with connection socket 26 between lamp stand 7 and the alarm 9, one side of connection socket 26 is provided with the wire rod and accomodates bag 27, controller 6 and display screen 5, lamp stand 7, alarm 9 and connection socket 26 electric connection.
There is the battery before the inside of case lid 2, and the outside of case lid 2 is provided with the interface that charges, and sets up the dustproof pad of rubber in the interface that charges, and the outside of case body 1 is provided with the handle.
Specifically, when the mine underground monitoring box is used, the box body 1 and the box cover 2 are buckled, the equipment can be conveniently carried into a mine through a handle at the position of the box body 1, the box body 1 is placed on a slightly flat ground after reaching the interior of the mine, the box cover 2 is opened to an inclined angle through the connecting folding rod 4, the telescopic supporting rod 12 and the bracket 13 are taken out by rotating outwards from the interior of the clamping groove 11, the poking rods 20 on the limiting device 16 are respectively poked towards two sides, the limiting inserting plate 19 slides outwards, finally the bottom end part of the telescopic supporting rod 12 is clamped in the notch 18, so that the telescopic supporting rod 12 maintains a vertical placing angle, then the telescopic supporting rod 12 is stretched and locked, the monitor 14 is taken out and placed on the bracket 13, any one or more of a methane detection instrument, a carbon monoxide detection instrument, a coal mine dust concentration measurement instrument and the like of the monitor 14 are adopted, the guardrail 23 at the outer side of the supporting plate 22 prevents the monitor 14 from sliding down, press from both sides the surface that covers at monitor 14 through spring clamp 24, thereby avoid monitor 14 to take place not hard up influence monitoring data result, later take out the inside wire rod of bag 27 with the wire rod, be connected monitor 14 with connection socket 26, the wire rod passes through from the logical line opening 25, avoid taking place vertical bending and fracture, monitor 14 monitors the inside air circumstance of mine, and show through display screen 5 with the data result, when certain quality surpassed safety value in the air, then alarm 9 sends and rings, platform 15 records the data result in the monitoring process accessible, the lamp area 8 of accessible lamp stand 7 outer end throws light on simultaneously, thereby conveniently work under the dim environment of mine.
According to the mine air monitoring device, the telescopic supporting rod and the bracket are overturned and stored in the clamping groove, so that the occupied area can be effectively reduced, the vertical orientation of the telescopic supporting rod can be limited through the limiting device, the monitoring height of the monitor is raised, air in a mine can be detected at a high position, manual long-time grabbing is not needed, the mine air monitoring device is easier and more convenient to use, and meanwhile the whole mine air monitoring device can be stored through the box body and the box cover, so that the whole carrying of the mine air monitoring device is more convenient.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A portable air monitoring device for a mine comprises a box body (1) and a box cover (2), wherein the box cover (2) is hinged to one side of the top end of the box body (1), a corresponding lock catch (3) is arranged on one side, far away from the hinged part, of the box body (1) and the box cover (2), a connecting folding rod (4) is arranged on the inner sides of the box body (1) and the box cover (2) close to the hinged part, the portable air monitoring device is characterized in that a display screen (5) is embedded on one side of the inner part of the box body (1), a controller (6) is arranged at the bottom of the display screen (5), a lamp holder (7) is arranged on one side of the display screen (5), a plurality of lamp strips (8) are uniformly arranged on the periphery of the lamp holder (7), an alarm (9) is arranged at the bottom of the lamp holder (7), an inner box (10) is arranged in the box body (1), and a clamping groove (11) is reserved between the inner cavity of the inner box (10) and the box body (1), the inside joint of draw-in groove (11) has telescopic strut (12), and telescopic strut's (12) one end is connected through the round pin axle with interior box (10), telescopic strut's (12) other end is connected with bracket (13), the inside of interior box (10) is provided with a plurality of monitors (14), one side of monitor (14) is provided with writes platform (15), the opposite side of monitor (14) is provided with stop device (16).
2. The portable air monitoring equipment for mine according to claim 1, characterized in that, stop device (16) is located one side of deviant telescopic support pole (12) connecting pin axle, stop device (16) includes slip box (17), the both ends of slip box (17) are open structure, and the top surface both sides of slip box (17) all opened notch (18), the top of notch (18) is provided with poker rod (20), the inside slip card of slip box (17) has embedded spacing picture peg (19), the inner top of spacing picture peg (19) is connected with poker rod (20), bayonet socket (21) have been opened to the outer end of spacing picture peg (19).
3. The portable air monitoring device for mine shafts is characterized in that the bayonet (21) is of a U-shaped structure, a rubber anti-slip pad is arranged on the inner side of the bayonet (21), and the radial distance of the bayonet (21) is slightly larger than the diameter of the telescopic supporting rod (12).
4. The portable air monitoring device for mines according to claim 1, wherein the bracket (13) comprises a supporting plate (22), a guardrail (23) and a spring clamp (24), both sides of the bottom end of the supporting plate (22) are connected with the telescopic supporting rod (12), the guardrail (23) is arranged on the peripheral edge of the top end of the supporting plate (22), and the spring clamp (24) is arranged on one side of the guardrail (23).
5. The portable air monitoring device for the mine shaft is characterized in that a through wire opening (25) is formed in the surface of the guardrail (23) on any side, rubber layers are arranged on the surfaces of the guardrail (23) and the supporting plate (22), and the outer layer of the clamp head of the spring clamp (24) is coated with the rubber layers.
6. The portable air monitoring device for the mine is characterized in that a wiring socket (26) is arranged between the lamp holder (7) and the alarm (9), a wire storage bag (27) is arranged on one side of the wiring socket (26), and the controller (6) is electrically connected with the display screen (5), the lamp holder (7), the alarm (9) and the wiring socket (26).
7. The portable air monitoring device for the mine is characterized in that a storage battery is arranged in front of the inside of the box cover (2), a charging interface is arranged on the outer side of the box cover (2), a rubber dustproof pad is arranged in the charging interface, and a handle is arranged on the outer side of the box body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110812333.4A CN113702573A (en) | 2021-07-19 | 2021-07-19 | Portable air monitoring equipment for mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110812333.4A CN113702573A (en) | 2021-07-19 | 2021-07-19 | Portable air monitoring equipment for mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113702573A true CN113702573A (en) | 2021-11-26 |
Family
ID=78648875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110812333.4A Pending CN113702573A (en) | 2021-07-19 | 2021-07-19 | Portable air monitoring equipment for mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113702573A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207396431U (en) * | 2017-09-20 | 2018-05-22 | 宜春学院 | A kind of height-adjustable Monitoring Indoor Air Pollution device |
| CN210422695U (en) * | 2019-07-23 | 2020-04-28 | 山西潞安集团余吾煤业有限责任公司 | Mine gas safety monitoring device |
| CN211505442U (en) * | 2020-02-21 | 2020-09-15 | 张丽芳 | Portable atmospheric environment monitoring device |
| DE202020106984U1 (en) * | 2020-11-12 | 2020-12-17 | Sichuan Landwirtschaftliche Universität | A new type of packaging box with a monitoring function for food quality |
| CN212483531U (en) * | 2020-06-23 | 2021-02-05 | 福州安然环境科技有限公司 | Portable formaldehyde detection equipment |
| CN213580851U (en) * | 2020-10-27 | 2021-06-29 | 杨永 | Portable indoor air environmental protection detection device |
| CN213632246U (en) * | 2020-12-29 | 2021-07-06 | 山东玲珑轮胎股份有限公司 | Portable environment monitoring device |
-
2021
- 2021-07-19 CN CN202110812333.4A patent/CN113702573A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207396431U (en) * | 2017-09-20 | 2018-05-22 | 宜春学院 | A kind of height-adjustable Monitoring Indoor Air Pollution device |
| CN210422695U (en) * | 2019-07-23 | 2020-04-28 | 山西潞安集团余吾煤业有限责任公司 | Mine gas safety monitoring device |
| CN211505442U (en) * | 2020-02-21 | 2020-09-15 | 张丽芳 | Portable atmospheric environment monitoring device |
| CN212483531U (en) * | 2020-06-23 | 2021-02-05 | 福州安然环境科技有限公司 | Portable formaldehyde detection equipment |
| CN213580851U (en) * | 2020-10-27 | 2021-06-29 | 杨永 | Portable indoor air environmental protection detection device |
| DE202020106984U1 (en) * | 2020-11-12 | 2020-12-17 | Sichuan Landwirtschaftliche Universität | A new type of packaging box with a monitoring function for food quality |
| CN213632246U (en) * | 2020-12-29 | 2021-07-06 | 山东玲珑轮胎股份有限公司 | Portable environment monitoring device |
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