CN220473125U - Atmospheric pollution detects sampling device - Google Patents
Atmospheric pollution detects sampling device Download PDFInfo
- Publication number
- CN220473125U CN220473125U CN202321923620.3U CN202321923620U CN220473125U CN 220473125 U CN220473125 U CN 220473125U CN 202321923620 U CN202321923620 U CN 202321923620U CN 220473125 U CN220473125 U CN 220473125U
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- fixed mounting
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- sampling device
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- 238000005070 sampling Methods 0.000 title claims abstract description 28
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 238000003915 air pollution Methods 0.000 description 4
- 230000003670 easy-to-clean Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses an atmospheric pollution detection sampling device which comprises a machine body, wherein a supporting plate is fixedly arranged in an inner cavity of the machine body, and two positioning blocks are fixedly arranged at the top of the supporting plate. According to the utility model, through the coordination of the machine body, the supporting plate, the positioning block, the air pump, the air inlet hose, the dustproof component, the air inlet, the groove, the filter screen, the connecting block, the adjusting component, the first motor, the first screw rod, the fixing plate, the supporting rod, the mounting plate, the fixing block, the connecting rod, the communicating block, the fixing frame, the first limiting block, the first sliding rod, the air outlet pipe, the connecting ring, the control valve, the air bag, the placing block, the clamping component, the second motor, the second screw rod, the sliding block, the clamping ring, the second limiting block, the second sliding rod, the limiting ring, the moving wheel and the rotating door, the problems that the air bag for sampling gas cannot be fixed and detached, the gas with different heights cannot be sampled, and the moving of the sampling component is inconvenient, so that the working efficiency is reduced, and the practicability is low are solved.
Description
Technical Field
The utility model belongs to the technical field of sampling devices, and particularly relates to an atmospheric pollution detection sampling device.
Background
The pollutants in the atmosphere can have adverse effects on the production and life of human beings, and the treatment of the atmospheric pollution becomes one of the main measures of energy conservation and emission reduction, and before the atmospheric pollution is treated, the air needs to be sampled, so that the atmospheric pollution detection sampling device is required all the time.
For example, application number: the utility model discloses a CN202221790627.8 gas sampling device for environmental pollution treatment, which comprises a box body, wherein an exhaust fan is fixedly embedded on the upper surface of the box body, a partition plate is fixedly connected to the inner wall of the box body, two groups of springs are fixedly connected to the bottom surface of the partition plate, control boards are fixedly connected to the bottom ends of the two groups of springs together, and a support plate is fixedly connected to the bottom surface of the control board. This device can extract external air through being equipped with controller, time-recorder and air exhauster to can gaseous transmission through guide cover and flexible hose, can make the single item valve pour into to the inside of elastic air bag through being equipped with return bend and single item valve, realize sampling gas, utilize the control valve can seal elastic air bag, prevent that the sample from leaking, and can make the go-between can separate the return bend through being equipped with the go-between, thereby solved and be difficult to take out gas, lead to gas accumulation inside the box, the staff is difficult to the problem of taking out fast.
Based on the search of the patent and the discovery of the equipment in the combined prior art, the equipment can be normally used when being applied, but can not fix and detach the air bags for sampling the gas, can not sample the gas with different heights, is inconvenient to move, reduces the working efficiency and has low practicability.
The air pollution detection sampling device can fix and detach the air bags for sampling the air, can sample the air at different heights, is convenient to move, reduces the working efficiency, and has strong practicability.
Disclosure of Invention
Aiming at the problems existing in the prior art, the utility model provides the air pollution detection sampling device which has the advantages that the air bags for sampling the air can be fixed and detached, the air with different heights can be sampled, the movement is convenient, the working efficiency is reduced, the practicability is high, and the problems that the air bags for sampling the air cannot be fixed and detached, the air with different heights cannot be sampled, the movement is inconvenient, the working efficiency is reduced, and the practicability is low are solved.
The utility model discloses an air pollution detection sampling device which comprises a machine body, wherein a supporting plate is fixedly arranged in an inner cavity of the machine body, two positioning blocks are fixedly arranged at the top of the supporting plate, an air pump is fixedly arranged between one side opposite to the two positioning blocks, the top of the air pump is communicated with an air inlet hose, a dustproof component is fixedly arranged at the top of the air inlet hose, an adjusting component is fixedly arranged on the right side of the top of the supporting plate, the top of the adjusting component is movably provided with the dustproof component, the bottom of the air pump is communicated with an air outlet pipe, a connecting ring is fixedly connected to the bottom of the air outlet pipe, a control valve is movably connected to the bottom of the connecting ring, an air bag is fixedly connected to the bottom of the control valve, a placing block is fixedly arranged at the bottom of the inner cavity of the machine body, a clamping component is fixedly arranged on the right side of the placing block, moving wheels are fixedly arranged at four corners of the bottom of the machine body, and a rotating door is movably arranged at the bottom of the front side of the machine body.
As the preferable dustproof component of the utility model, the dustproof component comprises an air inlet, the air inlet is fixedly arranged at the top of an air inlet hose, grooves are formed in the periphery of an inner cavity of the air inlet, a filter screen is detachably arranged at the top of the air inlet, and connecting blocks are fixedly arranged on the periphery of the filter screen.
As the preferable one of the utility model, the said regulating assembly includes the first motor, the said first motor is fixedly mounted on right side of the top of the supporting plate, the output end of the said first motor is fixedly mounted with the first lead screw, the bottom threaded connection of the surface of the said first lead screw has fixed plates, the front side and back side of the top of the said fixed plate are fixedly mounted with the support bar, fixedly mounted with the mounting plate between the tops of two support bars, front side and back side of the top of the said mounting plate are fixedly mounted with the fixed block, fixedly mounted with the connecting rod between opposite sides of two fixed blocks, the surface of the said connecting rod is fixedly mounted with the communicating block, the top of the said communicating block is fixedly mounted with the fixing frame.
As the preferable mode of the utility model, the front side and the rear side of the fixed plate are fixedly provided with the first limiting block, and the inner cavity of the first limiting block is provided with the first sliding rod in a sliding way.
As the preferred mode of the utility model, the clamping assembly comprises a second motor, the output end of the second motor is fixedly connected with a second screw rod, both sides of the second screw rod are connected with sliding blocks in a threaded manner, and clamping rings are fixedly arranged at the tops of the two sliding blocks.
As the preferable mode of the utility model, the front side and the rear side of the two sliding blocks are fixedly provided with the second limiting block, and the inner cavity of the second limiting block is provided with the second sliding rod in a sliding way.
As the preferable mode of the utility model, the left side of the surface of the second motor is sleeved with a limiting ring, and the left side of the limiting ring is fixedly connected with the right side of the placing block.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, a sampling device is placed at a place needing to be sampled through staff, then an air bag is connected with a connecting ring to open a control valve, a second motor is started, a second motor is used for clamping the air bag through a second screw rod, a sliding block, a second limiting block and a second sliding rod, so that stability of operation is guaranteed, then a first motor is started, the output end of the first motor drives the first screw rod to rotate, the first screw rod drives a fixed plate and a supporting rod sleeved at the bottom of the first screw rod to lift, the supporting rod pushes a mounting plate to lift, the mounting plate drives a fixed block, a connecting rod, a communicating block and a fixing frame to lift, so that the positions of a dustproof component and an air inlet hose which are placed on the fixing frame are adjusted to sample the place needing to be sampled, an air pump is started, the air pump is used for filtering particles and impurities in the air through the dustproof component, then the air needing to be sampled is fed into the air bag through the air inlet hose and an air outlet pipe, the control valve is closed after the air bag is sampled, the air bag is taken out from the inside a machine body through a rotating door, then a filter screen in the air inlet is taken out for cleaning or replacing the filter screen, and thus the air bag cannot be fixed and the air can not be removed, the air bag and the air bag is not easy to detach, and the air pump is convenient to move, and the air pump is convenient to use, and low in performance.
Drawings
FIG. 1 is a schematic diagram of a structure provided by an embodiment of the present utility model;
FIG. 2 is a front cross-sectional view provided by an embodiment of the present utility model;
FIG. 3 is a front view of a dust assembly provided by an embodiment of the utility model;
FIG. 4 is a front view of an adjustment assembly according to an embodiment of the present utility model
FIG. 5 is a front view of a clamping assembly according to an embodiment of the present utility model
Fig. 6 is a front view of a swing door according to an embodiment of the present utility model.
In the figure: 1. a body; 2. a support plate; 3. a positioning block; 4. an air pump; 5. an air intake hose; 6. a dust-proof assembly; 601. an air inlet; 602. a groove; 603. a filter screen; 604. a connecting block; 7. an adjustment assembly; 701. a first motor; 702. a first screw rod; 703. a fixing plate; 704. a support rod; 705. a mounting plate; 706. a fixed block; 707. a connecting rod; 708. a communicating block; 709. a fixing frame; 710. a first limiting block; 711. a first slide bar; 8. an air outlet pipe; 9. a connecting ring; 10. a control valve; 11. an air bag; 12. placing a block; 13. a clamping assembly; 1301. a second motor; 1302. a second screw rod; 1303. a sliding block; 1304. a clamping ring; 1305. a second limiting block; 1306. a second slide bar; 1307. a limiting ring; 14. a moving wheel; 15. the door is rotated.
Detailed Description
For a further understanding of the utility model, its features and advantages, reference is now made to the following examples, which are illustrated in the accompanying drawings.
The structure of the present utility model will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 6, the air pollution detection sampling device provided by the embodiment of the utility model comprises a machine body 1, wherein a supporting plate 2 is fixedly installed in an inner cavity of the machine body 1, two positioning blocks 3 are fixedly installed at the top of the supporting plate 2, an air pump 4 is fixedly installed between one opposite sides of the two positioning blocks 3, an air inlet hose 5 is communicated with the top of the air pump 4, a dustproof component 6 is fixedly installed at the top of the air inlet hose 5, an adjusting component 7 is fixedly installed at the right side of the top of the supporting plate 2, the dustproof component 6 is movably installed at the top of the adjusting component 7, an air outlet pipe 8 is communicated with the bottom of the air pump 4, a connecting ring 9 is fixedly connected to the bottom of the air outlet pipe 8, a control valve 10 is movably connected to the bottom of the connecting ring 9, an air bag 11 is fixedly connected to the bottom of the control valve 10, a placing block 12 is fixedly installed at the bottom of the inner cavity of the machine body 1, a clamping component 13 is fixedly installed at the right side of the placing block 12, moving wheels 14 are fixedly installed at four corners of the bottom of the machine body 1, and a rotating door 15 is movably installed at the bottom of the front side of the machine body 1 through hinges.
Referring to fig. 1 to 3, the dust-proof component 6 includes an air inlet 601, the air inlet 601 is fixedly mounted at the top of the air inlet hose 5, grooves 602 are formed in the periphery of an inner cavity of the air inlet 601, a filter screen 603 is detachably mounted at the top of the air inlet 601, and a connecting block 604 is fixedly mounted around the filter screen 603.
The scheme is adopted: the filter screen 603 is fixed and detached through the cooperation of the air inlet 601, the groove 602, the filter screen 603 and the connecting block 604, so that the filter screen 603 can be replaced or cleaned conveniently in the later period.
Referring to fig. 1, 2 and 4, the adjusting assembly 7 includes a first motor 701, the first motor 701 is fixedly installed on the right side of the top of the supporting plate 2, a first screw rod 702 is fixedly installed at the output end of the first motor 701, a fixing plate 703 is fixedly connected to the bottom of the surface of the first screw rod 702, supporting rods 704 are fixedly installed at the front side and the rear side of the top of the fixing plate 703, a mounting plate 705 is fixedly installed between the tops of the two supporting rods 704, fixing blocks 706 are fixedly installed at the front side and the rear side of the top of the mounting plate 705, a connecting rod 707 is fixedly installed between the opposite sides of the two fixing blocks 706, a communicating block 708 is fixedly installed on the surface of the connecting rod 707, and a fixing frame 709 is fixedly installed at the top of the communicating block 708.
The scheme is adopted: through the design of first motor 701, first lead screw 702, fixed plate 703, bracing piece 704, mounting plate 705, fixed block 706, connecting rod 707, communicating block 708 and mount 709, start first motor 701, the output of first motor 701 drives first lead screw 702 rotation, first lead screw 702 drive cover is established at first lead screw 702 bottom surface fixed plate 703 and bracing piece 704 and is gone up and down, bracing piece 704 promotes mounting plate 705 and rises, mounting plate 705 drives fixed block 706, connecting rod 707, communicating block 708 and mount 709 of installing on mounting plate 705 board again and goes up and down thereby adjust dustproof subassembly 6 placed on mount 709.
Referring to fig. 1, 2 and 4, a first stopper 710 is fixedly installed at both front and rear sides of the fixing plate 703, and a first sliding rod 711 is slidably installed in an inner cavity of the first stopper 710.
The scheme is adopted: the fixing plate 703 is limited by the design of the first limiting block 710 and the first sliding rod 711, so that the fixing plate 703 moves rather than rotates, and the stability of the fixing plate 703 is improved.
Referring to fig. 1, 2 and 5, the clamping assembly 13 includes a second motor 1301, an output end of the second motor 1301 is fixedly connected with a second screw 1302, two sides of the second screw 1302 are both in threaded connection with sliding blocks 1303, and top portions of the two sliding blocks 1303 are both fixedly provided with a clamping ring 1304.
The scheme is adopted: the air bag 11 is clamped by the design of the second motor 1301, the second screw 1302, the sliding block 1303 and the clamping ring 1304, so that the stability of the air bag 11 in use is ensured.
Referring to fig. 1, 2 and 5, a second stopper 1305 is fixedly installed at both front and rear sides of the two sliding blocks 1303, and a second sliding rod 1306 is slidably installed in an inner cavity of the second stopper 1305.
The scheme is adopted: limiting the slider 1303 by the design of the second limiting block 1305 and the second sliding rod 1306 allows the slider 1303 to move instead of rotate, thereby increasing the working efficiency of the slider 1303.
Referring to fig. 1, 2 and 5, a limiting ring 1307 is sleeved on the left side of the surface of the second motor 1301, and the left side of the limiting ring 1307 is fixedly connected with the right side of the placement block 12.
The scheme is adopted: through the design of spacing ring 1307, make second motor 1301 fix it through spacing ring 1307 when using, can not let second motor 1301 appear rocking when using to the stability of second motor 1301 when using has been increased.
The working principle of the utility model is as follows:
when the air bag 11 is connected with the connecting ring 9 to open the control valve 10 in use, the second motor 1301 is started, the second motor 1301 clamps the air bag 11 through the cooperation of the second screw rod 1302, the sliding block 1303, the second limiting block 1305 and the second sliding rod 1306, then the first motor 701 is started and started, the output end of the first motor 701 drives the first screw rod 702 to rotate, the first screw rod 702 drives the fixed plate 703 and the supporting rod 704 sleeved on the bottom surface of the first screw rod 702 to lift, the supporting rod 704 pushes the mounting plate 705 to lift, the mounting plate 705 drives the fixed block 706, the connecting rod 707, the communicating block 708 and the fixing frame 709 which are mounted on the mounting plate 705 to lift, the dust-proof assembly 6 and the air inlet hose 5 are adjusted to sample the place where the air is needed to be sampled, the air pump 4 is started, particles and impurities in the air are filtered by the dust-proof assembly 6, the air needed to be sampled is fed into the air bag 11 through the air inlet hose 5 and the air outlet pipe 8, the control valve 10 is closed after the air is sampled, the air bag 11 is taken out from the inside the air bag 1 through the rotating door 15, and then the filter body 603 is taken out, or the air bag is not cleaned, the air bag is not convenient to clean, and the air bag is not easy to clean, and the air bag is not convenient to clean, and the air is not easy to clean, and the air quality of the air bag is not easy to clean, and the air quality is not easy to clean.
To sum up: this atmospheric pollution detects sampling device, through setting up organism 1, backup pad 2, locating piece 3, air pump 4, air inlet hose 5, dustproof subassembly 6, air inlet 601, recess 602, filter screen 603, connecting block 604, adjusting part 7, first motor 701, first lead screw 702, fixed plate 703, bracing piece 704, mounting panel 705, fixed block 706, connecting rod 707, intercommunication piece 708, mount 709, first stopper 710, first slide bar 711, outlet duct 8, go-between 9, control valve 10, gasbag 11, place the piece 12, clamping part 13, second motor 1301, second lead screw 1302, sliding block 1303, clamping ring 1304, the cooperation use of second stopper, second slide bar 1306, stop collar 1307, remove round 14 and revolving door 15, the gasbag of sampling gas can not be fixed and dismantled, can not take a sample to the gas of different co-altitude, thereby the inconvenient removal has reduced work efficiency, the low problem of practicality.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides an atmospheric pollution detects sampling device, includes organism (1), its characterized in that: the utility model discloses a novel air conditioner, including organism (1), including inner chamber, air pump (4), air hose (5), air hose (6), adjusting part (7), air pump (4) have two locating pieces (3) in the inner chamber fixed mounting of organism (1), two locating pieces (3) have in the top fixed mounting of backup pad (2), two locating pieces (3) have in the top fixed mounting of air pump (4) between one side opposite, the top intercommunication of air pump (4) has air hose (5), the top fixed mounting of air hose (5) has dustproof subassembly (6), the right side fixed mounting at backup pad (2) top has adjusting part (7), the top movable mounting of adjusting part (7) has dustproof subassembly (6), the bottom intercommunication of air pump (4) has outlet duct (8), the bottom fixedly connected with go-between (9) of outlet duct (8), the bottom swing joint of go-between (9) has control valve (10), the bottom fixed intercommunication of control valve (10) has gasbag (11), the bottom fixed mounting of organism (1) inner chamber has place piece (12), place right side fixed mounting of piece (12) has clamping component (13), the equal fixed mounting in four corners of organism (1) bottom has movable door (15) through hinge before moving door (15).
2. An atmospheric pollution detection sampling device as defined in claim 1, wherein: dustproof subassembly (6) are including air inlet (601), air inlet (601) fixed mounting is at the top of air inlet hose (5), recess (602) have all been seted up around the inner chamber of air inlet (601), filter screen (603) are installed to removable the installing in air inlet (601) top, all fixed mounting has connecting block (604) around filter screen (603).
3. An atmospheric pollution detection sampling device as defined in claim 1, wherein: the adjusting component (7) comprises a first motor (701), the right side at backup pad (2) top is fixed to first motor (701), the output fixed mounting of first motor (701) has first lead screw (702), the bottom threaded connection on first lead screw (702) surface has fixed plate (703), front side and rear side fixed mounting at fixed plate (703) top have bracing piece (704), fixed mounting has mounting panel (705) between the top of two bracing pieces (704), the front side at mounting panel (705) top and the equal fixed mounting of rear side have fixed block (706), fixed mounting has connecting rod (707) between the opposite one side of two fixed blocks (706), the fixed mounting of surface of connecting rod (707) has intercommunication piece (708), the top fixed mounting of intercommunication piece (708) has mount (709).
4. An atmospheric pollution detection sampling device as defined in claim 3, wherein: the front side and the rear side of the fixed plate (703) are fixedly provided with first limiting blocks (710), and the inner cavity of each first limiting block (710) is slidably provided with a first sliding rod (711).
5. An atmospheric pollution detection sampling device as defined in claim 1, wherein: the clamping assembly (13) comprises a second motor (1301), the output end of the second motor (1301) is fixedly connected with a second screw rod (1302), sliding blocks (1303) are connected to two sides of the second screw rod (1302) in a threaded mode, and clamping rings (1304) are fixedly installed at the tops of the two sliding blocks (1303).
6. An atmospheric pollution detection sampling device as defined in claim 5, wherein: the front sides and the rear sides of the two sliding blocks (1303) are fixedly provided with second limiting blocks (1305), and the inner cavity of each second limiting block (1305) is provided with a second sliding rod (1306) in a sliding mode.
7. An atmospheric pollution detection sampling device as defined in claim 5, wherein: and a limiting ring (1307) is sleeved on the left side of the surface of the second motor (1301), and the left side of the limiting ring (1307) is fixedly connected with the right side of the placement block (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321923620.3U CN220473125U (en) | 2023-07-21 | 2023-07-21 | Atmospheric pollution detects sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321923620.3U CN220473125U (en) | 2023-07-21 | 2023-07-21 | Atmospheric pollution detects sampling device |
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| Publication Number | Publication Date |
|---|---|
| CN220473125U true CN220473125U (en) | 2024-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321923620.3U Active CN220473125U (en) | 2023-07-21 | 2023-07-21 | Atmospheric pollution detects sampling device |
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| Country | Link |
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| CN (1) | CN220473125U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119715397A (en) * | 2024-12-13 | 2025-03-28 | 扎赉诺尔煤业有限责任公司 | A gas detection device based on laser principle for coal mines |
| CN119804044A (en) * | 2025-03-11 | 2025-04-11 | 江浪科技股份有限公司 | A pneumatic gas sampling pump |
-
2023
- 2023-07-21 CN CN202321923620.3U patent/CN220473125U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119715397A (en) * | 2024-12-13 | 2025-03-28 | 扎赉诺尔煤业有限责任公司 | A gas detection device based on laser principle for coal mines |
| CN119804044A (en) * | 2025-03-11 | 2025-04-11 | 江浪科技股份有限公司 | A pneumatic gas sampling pump |
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