CN114019132A - Coal mine gas monitoring device - Google Patents
Coal mine gas monitoring device Download PDFInfo
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- CN114019132A CN114019132A CN202111294038.0A CN202111294038A CN114019132A CN 114019132 A CN114019132 A CN 114019132A CN 202111294038 A CN202111294038 A CN 202111294038A CN 114019132 A CN114019132 A CN 114019132A
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- 239000003245 coal Substances 0.000 title claims abstract description 41
- 238000012806 monitoring device Methods 0.000 title claims abstract description 25
- 238000001514 detection method Methods 0.000 claims abstract description 60
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 6
- 239000000872 buffer Substances 0.000 claims description 10
- 238000009423 ventilation Methods 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract description 37
- 238000005065 mining Methods 0.000 description 7
- 244000309464 bull Species 0.000 description 5
- 239000000428 dust Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 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
- G01N33/22—Fuels; Explosives
- G01N33/225—Gaseous fuels, e.g. natural gas
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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
- G01N33/22—Fuels; Explosives
- G01N33/227—Explosives, e.g. combustive properties thereof
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- General Chemical & Material Sciences (AREA)
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Abstract
The invention relates to a coal mine gas monitoring device, and belongs to the field of coal mine gas monitoring. The device includes: a base plate for supporting; the supporting and fixing mechanism is arranged on the surface of the bottom plate, is used for placing the detection device and fixing the detection device, and consists of a placing unit and a fixing unit; the sealing unit is arranged at the upper end of the bottom plate and used for sealing the air port; and the lifting unit is arranged on the upper surface of the bottom plate and used for improving the detection range of coal mine gas. According to the invention, the supporting and fixing mechanism is arranged, the detection device is placed in the device box arranged at the upper end of the sliding plate, the detection device is protected, the detection device is prevented from being easily damaged due to sliding when being directly placed at the upper end of the sliding plate, the screw rod is rotated to drive the gear to rotate, the gear drives the rack plate to lift and slide, the rack plate lifts and slides to drive the pressing plate to synchronously operate, the pressing plate clamps and fixes the detection device placed in the device box, and the detection device is prevented from shaking in the monitoring process.
Description
Technical Field
The invention belongs to the field of coal mine gas monitoring, and relates to a coal mine gas monitoring device.
Background
In China, coal mining geological conditions are complex, and gas migration difficulty is high, so that a targeted prevention measure must be provided for gas during coal mining, and safe and efficient mining of coal mines is guaranteed.
Coal mine gas is a harmful gas mainly comprising methane, which is mainly formed by coal bed gas in coal mines, and is sometimes referred to as methane alone. In the coal mining process, the gas in the mining designated area must be monitored in real time, so that the gas accident caused by the overhigh gas concentration in the mining area is avoided, and even the life safety of workers is seriously threatened. Referring to CN207396452U, the gas monitoring device is relatively fixed, and the monitoring position cannot be adjusted, so a coal mine gas monitoring device is needed to monitor the gas concentration in the coal mining area.
At present, a colliery gas monitoring devices needs artifical manual carrying to monitor, the efficiency that monitoring range is less and the monitoring is lower, monitoring devices appears the skew easily when artifical manual carrying and causes colliery gas monitoring result to appear the error easily, it breaks easily to hand-carry the device that drops easily, and the wasting of resources, the monitoring device's that can not be adjusted range that highly enlarges the monitoring simultaneously, it stops up to detect the gas port and expose easy collecting up the dust for a long time when not monitoring, subsequent colliery gas monitoring of being not convenient for.
Disclosure of Invention
In view of this, the present invention provides a coal mine gas monitoring device. In order to solve present coal mine gas monitoring devices and need artifical manual carrying to monitor, the efficiency that monitoring range is less and the monitoring is lower, monitoring devices appears the skew easily when artifical manual carrying and causes coal mine gas monitoring result to appear the error easily, it breaks easily to carry the device that drops easily, and resources are wasted, the scope of monitoring can not be enlarged to the height that simultaneously can not adjust monitoring devices, it stops up to detect the gas port and expose easy accumulating dust for a long time when not monitoring, subsequent coal mine gas monitoring's problem of being not convenient for, a coal mine gas monitoring devices is provided.
In order to achieve the purpose, the invention provides the following technical scheme:
a coal mine gas monitoring device comprising:
a base plate for supporting;
the supporting and fixing mechanism is arranged on the surface of the bottom plate, is used for placing the detection device and fixing the detection device, and consists of a placing unit and a fixing unit;
the sealing unit is arranged at the upper end of the bottom plate and used for sealing the air port;
and the lifting unit is arranged on the upper surface of the bottom plate and used for improving the detection range of coal mine gas.
As a still further scheme of the invention: the placing unit comprises a vertical rod arranged on the upper surface of the bottom plate, a sliding plate is slidably mounted on the outer surface of the vertical rod, a device box is mounted on the upper surface of the sliding plate, and a detection device is mounted inside the device box.
As a still further scheme of the invention: the fixed unit is including setting up the first riser in device box one side, the second riser is installed to the opposite side of device box, first spout has been seted up to the inner wall of first riser, the inside slidable mounting of first spout has first slider, the rack plate is installed to the one end of first slider, the connecting plate is installed to one side of rack plate, the pressure strip is installed to the one end of connecting plate, the slide is installed to one side of pressure strip, the second slider is installed to one side of slide, the second spout has been seted up to the inner wall of second riser, the rotation screw rod is installed to one side of first riser, the gear is installed to the one end of rotating the screw rod, one side of gear with one side meshing installation of rack plate.
As a still further scheme of the invention: the sealing unit comprises an external thread column arranged on the front surface of the device box, a detection air port is formed in one end of the external thread column, an internal thread round block is installed on the outer surface of the external thread column in a threaded mode, a connection round block is installed at one end of the internal thread round block, an air vent is formed in the outer surface of the connection round block, and a sealing cover is installed at one end of the connection round block.
As a still further scheme of the invention: the lifting unit is including setting up the positive and negative motor of bottom plate upper surface, the bull stick is installed to the output of positive and negative motor, the bearing piece is installed to the one end of bull stick, the surface mounting of bull stick has the connecting rod, the telescopic link is installed to the one end of connecting rod, the fixed block is installed to the one end of telescopic link, the one end of fixed block with the rear surface of sliding plate is connected.
As a still further scheme of the invention: the outer surface mounting of pole setting has buffer spring, the quantity of pole setting has a set ofly, buffer spring's quantity has a set ofly.
As a still further scheme of the invention: the bottom of bottom plate installs the wheel carrier, the internally mounted of wheel carrier has the removal wheel, the rear surface mounting of bottom plate has the connecting rod, the push rod is installed to the one end of connecting rod.
Compared with the prior art, the invention has the beneficial effects that:
1. by arranging the supporting and fixing mechanism, the detection device is placed in a device box arranged at the upper end of the sliding plate and is protected, the situation that the upper end of the sliding plate directly placed by the detection device is easy to slip and damage is avoided, the screw rod is rotated to drive the gear to rotate, the gear drives the rack plate to lift and slide, the rack plate lifts and slides to drive the pressing plate to synchronously operate, the pressing plate clamps and fixes the detection device placed in the device box, the situation that the detection device shakes in the monitoring process to influence the monitoring quality of coal mine gas is avoided, and the second sliding block and the sliding plate improve the lifting and pressing stability of the pressing plate;
2. through setting up sealed unit and lift unit, make the blow vent and detect the gas port intercommunication during the monitoring, carry out gas suction to colliery gas and detect, need not examine time measuring and make the blow vent and detect the gas port closure with the other end of internal thread circle piece soon to the external screw thread post, sealed lid realizes sealedly to detecting the gas port, avoid outside dust to get into to detect the gas port and cause the jam, influence subsequent colliery gas monitoring, positive and negative motor indirectly drives the sliding plate and goes up and down to slide at the surface of pole setting, carry out height control to detection device, enlarge the monitoring range of detection device to colliery gas, improve the efficiency of monitoring.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of the mounting structure of the compacting plate according to the present invention;
fig. 3 is an enlarged view of the invention at a.
In the figure: 1. a base plate; 2. erecting a rod; 3. a sliding plate; 4. a device cartridge; 5. a detection device; 6. a first vertical plate; 7. a second vertical plate; 8. a first chute; 9. a first slider; 10. a rack plate; 11. a connecting plate; 12. a compression plate; 13. a slide plate; 14. a second slider; 15. a second chute; 16. rotating the screw; 17. a gear; 18. an externally threaded post; 19. detecting an air port; 20. an internal thread round block; 21. connecting the round blocks; 22. a vent; 23. a sealing cover; 24. a positive and negative motor; 25. a rotating rod; 26. a bearing block; 27. a connecting rod; 28. a telescopic rod; 29. a fixed block; 30. a buffer spring; 31. a wheel carrier; 32. a moving wheel; 33. a connecting rod; 34. a push rod.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
Example 1
Referring to fig. 1 to 3, in an embodiment of the present invention, a coal mine gas monitoring device includes:
a base plate 1 for supporting;
the supporting and fixing mechanism is arranged on the surface of the bottom plate 1, is used for placing a detection device and fixing the detection device, and consists of a placing unit and a fixing unit;
the sealing unit is arranged at the upper end of the bottom plate 1 and used for sealing the air port;
and the lifting unit is arranged on the upper surface of the bottom plate 1 and used for improving the detection range of coal mine gas.
Please refer to fig. 1, the placing unit includes an upright rod 2 disposed on the upper surface of the bottom plate 1, a sliding plate 3 is slidably mounted on the outer surface of the upright rod 2, a device box 4 is mounted on the upper surface of the sliding plate 3, and a detecting device 5 is mounted inside the device box 4.
As a preferred embodiment of this solution: the detection device 5 is placed in the device box 4 arranged at the upper end of the sliding plate 3, the detection device 5 is protected, and the phenomenon that the detection device 5 is directly placed at the upper end of the sliding plate 3 and is damaged due to easy sliding off is avoided.
Please refer to fig. 1, a wheel frame 31 is installed at the bottom end of the base plate 1, a moving wheel 32 is installed inside the wheel frame 31, a connecting rod 33 is installed on the rear surface of the base plate 1, and a push rod 34 is installed at one end of the connecting rod 33.
As a preferred embodiment of this solution: the quick movement of the detection device is realized by the moving wheel 32 and the push rod 34 which are installed, the detection device does not need to be manually held for monitoring, and the monitoring convenience of the detection device is improved.
Please refer to fig. 1, the outer surface of the vertical rod 2 is provided with a buffer spring 30, the number of the vertical rods 2 is one, and the number of the buffer springs 30 is one.
As a preferred embodiment of this solution: the buffer spring 30 buffers the sliding of the sliding plate 3, so that the sliding plate 3 is prevented from colliding with the bottom plate 1 too fast in sliding, and the service life of the whole equipment is prolonged.
Please refer to fig. 1 and fig. 2, the fixing unit includes a first vertical plate 6 disposed on one side of the device box 4, a second vertical plate 7 is mounted on the other side of the device box 4, a first sliding groove 8 is disposed on an inner wall of the first vertical plate 6, a first sliding block 9 is slidably mounted inside the first sliding groove 8, a rack plate 10 is mounted at one end of the first sliding block 9, a connecting plate 11 is mounted at one side of the rack plate 10, a pressing plate 12 is mounted at one end of the connecting plate 11, a sliding plate 13 is mounted at one side of the pressing plate 12, a second sliding block 14 is mounted at one side of the sliding plate 13, a second sliding groove 15 is disposed on an inner wall of the second vertical plate 7, a rotating screw 16 is mounted at one side of the first vertical plate 6, a gear 17 is mounted at one end of the rotating screw 16, and one side of the gear 17 is engaged with one side of the rack plate 10.
As a preferred embodiment of this solution: rotate the rotation screw rod 16 of first riser 6 side-mounting, it rotates to rotate the gear 17 that screw rod 16 drove the one end installation, gear 17 drives rack plate 10 of one side meshing and carries out the lifting and dropping in the first spout 8 that first slider 9 of rear surface mounting seted up at first riser 6 inner wall, rack plate 10 lifting and dropping slides and drives connecting plate 11 and the pressure strip 12 of one side-mounting and carry out the function in step, pressure strip 12 presss from both sides tight fixedly to detection device 5 of placing in the device box 4, avoid in the monitoring process detection device 5 appearing rocking, the influence is to the monitoring quality of colliery gas, the second spout 15 that the inner wall was seted up of second riser 7, second slider 14 and slide 13 improve the stability that pressure strip 12 goes up and down to compress tightly.
Example 2
Please refer to fig. 1 and fig. 3, the sealing unit includes an external threaded post 18 disposed on the front surface of the device case 4, one end of the external threaded post 18 is provided with a detection air port 19, an external threaded post 18 is threadedly provided with an internal threaded round block 20, one end of the internal threaded round block 20 is provided with a connection round block 21, an external surface of the connection round block 21 is provided with an air vent 22, and one end of the connection round block 21 is provided with a sealing cover 23.
As a preferred embodiment of this solution: during the monitoring revolve internal thread circle piece 20 to the gas port end of external screw thread post 18, make the gas port 22 that the gas port was seted up to the connection circle piece 21 surface and the detection gas port 19 intercommunication that 18 one end of external screw thread was seted up, carry out gaseous suction detection to coal mine gas, need not examine time measuring revolve internal thread circle piece 20 to the other end of external screw thread post 18 make gas port 22 and detection gas port 19 closed, sealed lid 23 realizes sealedly to detecting gas port 19, avoid outside dust to get into and detect gas port 19 and cause the jam, influence subsequent coal mine gas monitoring.
Please refer to fig. 1, the lifting unit includes a forward and backward motor 24 disposed on the upper surface of the bottom plate 1, a rotating rod 25 is mounted at the output end of the forward and backward motor 24, a bearing block 26 is mounted at one end of the rotating rod 25, a connecting rod 27 is mounted on the outer surface of the rotating rod 25, a telescopic rod 28 is mounted at one end of the connecting rod 27, a fixed block 29 is mounted at one end of the telescopic rod 28, and one end of the fixed block 29 is connected to the rear surface of the sliding plate 3.
As a preferred embodiment of this solution: start positive and negative motor 24 when needing the increase detection range, positive and negative motor 24 drives bull stick 25 and rotates, bull stick 25 drives surface mounting's connecting rod 27 and rotates, connecting rod 27 drives the telescopic link 28 of one end installation and risees and reduces work, telescopic link 28 drives the sliding plate 3 of one end installation and goes up and down at the surface of pole setting 2 and slide, carry out height control to detection device 5, enlarge the monitoring range of detection device 5 to coal mine gas, improve the efficiency of monitoring.
The working principle of the invention is as follows: when the device is used, the detection device 5 is placed in the device box 4 installed at the upper end of the sliding plate 3 and protected, the situation that the detection device 5 is directly placed on the upper end of the sliding plate 3 and is damaged due to easy sliding is avoided, the detection device 5 is placed completely and then rotates the rotating screw 16 installed on one side of the first vertical plate 6, the rotating screw 16 drives the gear 17 installed at one end to rotate, the gear 17 drives the rack plate 10 meshed with one side to slide up and down in the first sliding groove 8 formed in the inner wall of the first vertical plate 6 through the first sliding block 9 installed on the rear surface, the rack plate 10 slides up and down to drive the connecting plate 11 and the pressing plate 12 installed on one side to synchronously operate, the pressing plate 12 clamps and fixes the detection device 5 placed in the device box 4, the situation that the detection device 5 shakes in the monitoring process to influence the monitoring quality of coal mine gas is avoided, the second sliding groove 15 formed in the inner wall of the second vertical plate 7, The second sliding block 14 and the sliding plate 13 improve the stability of the lifting and pressing of the pressing plate 12, when monitoring, the internal thread round block 20 is screwed to the air port end of the external thread column 18, so that the air vent 22 formed on the outer surface of the connecting round block 21 is communicated with the detection air port 19 formed on one end of the external thread column 18, gas suction detection is carried out on coal mine gas, when detection is not needed, the internal thread round block 20 is screwed to the other end of the external thread column 18, so that the air vent 22 and the detection air port 19 are closed, the sealing cover 23 seals the detection air port 19, external dust is prevented from entering the detection air port 19 to cause blockage, subsequent coal mine gas monitoring is influenced, the positive and negative motor 24 is started when the detection range needs to be enlarged, the positive and negative motor 24 drives the rotating rod 25 to rotate, the rotating rod 25 drives the connecting rod 27 installed on the outer surface to rotate, the connecting rod 27 drives the telescopic rod 28 installed at one end to carry out lifting and sliding, the telescopic rod 28 drives the sliding plate 3 installed at one end to carry out lifting and sliding on the outer surface of the upright rod 2, carry out height control to detection device 5, enlarge the monitoring range of detection device 5 to the colliery gas, improve the efficiency of monitoring, buffer spring 30 slides sliding plate 3 and cushions, avoid sliding plate 3 to slide too fast and bottom plate 1 bumps, the holistic life of extension equipment, the quick travel that detection device was realized to removal wheel 32 and push rod 34 of installation does not need artifical handheld detection device to monitor, improves the convenience of detection device monitoring.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (7)
1. A coal mine gas monitoring device is characterized by comprising:
a base plate (1) for supporting;
the supporting and fixing mechanism is arranged on the surface of the bottom plate (1), is used for placing a detection device and fixing the detection device, and consists of a placing unit and a fixing unit;
the sealing unit is arranged at the upper end of the bottom plate (1) and is used for realizing the ventilation sealing of the coal mine gas monitoring device;
the lifting unit is arranged on the upper surface of the bottom plate (1) and used for lifting the coal mine gas monitoring device to improve the detection range.
2. The coal mine gas monitoring device according to claim 1, wherein the placing unit comprises an upright rod (2) arranged on the upper surface of the base plate (1), a sliding plate (3) is slidably mounted on the outer surface of the upright rod (2), a device box (4) is mounted on the upper surface of the sliding plate (3), and a detection device (5) is mounted inside the device box (4).
3. The coal mine gas monitoring device according to claim 1, wherein the fixing unit comprises a first vertical plate (6) arranged on one side of the device box (4), a second vertical plate (7) is arranged on the other side of the device box (4), a first sliding groove (8) is formed in the inner wall of the first vertical plate (6), a first sliding block (9) is slidably arranged inside the first sliding groove (8), a rack plate (10) is arranged at one end of the first sliding block (9), a connecting plate (11) is arranged on one side of the rack plate (10), a pressing plate (12) is arranged at one end of the connecting plate (11), a sliding plate (13) is arranged on one side of the pressing plate (12), a second sliding block (14) is arranged on one side of the sliding plate (13), and a second sliding groove (15) is formed in the inner wall of the second vertical plate (7), a rotating screw (16) is installed on one side of the first vertical plate (6), a gear (17) is installed at one end of the rotating screw (16), and one side of the gear (17) is meshed with one side of the rack plate (10) to be installed.
4. The coal mine gas monitoring device according to claim 1, wherein the sealing unit comprises an external thread column (18) arranged on the front surface of the device box (4), a detection air port (19) is formed in one end of the external thread column (18), an internal thread round block (20) is installed on the outer surface of the external thread column (18) in a threaded mode, a connection round block (21) is installed at one end of the internal thread round block (20), an air port (22) is formed in the outer surface of the connection round block (21), and a sealing cover (23) is installed at one end of the connection round block (21).
5. The coal mine gas monitoring device according to claim 1, wherein the lifting unit comprises a positive and negative motor (24) arranged on the upper surface of the bottom plate (1), a rotating rod (25) is installed at the output end of the positive and negative motor (24), a bearing block (26) is installed at one end of the rotating rod (25), a connecting rod (27) is installed on the outer surface of the rotating rod (25), an expansion rod (28) is installed at one end of the connecting rod (27), a fixed block (29) is installed at one end of the expansion rod (28), and one end of the fixed block (29) is connected with the rear surface of the sliding plate (3).
6. A coal mine gas monitoring device according to claim 1, characterized in that the outer surface of the upright (2) is provided with buffer springs (30), the number of the upright (2) is one group, and the number of the buffer springs (30) is one group.
7. A coal mine gas monitoring device according to claim 1, characterized in that the bottom end of the base plate (1) is provided with a wheel carrier (31), the wheel carrier (31) is internally provided with a moving wheel (32), the rear surface of the base plate (1) is provided with a connecting rod (33), and one end of the connecting rod (33) is provided with a push rod (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111294038.0A CN114019132A (en) | 2021-11-03 | 2021-11-03 | Coal mine gas monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111294038.0A CN114019132A (en) | 2021-11-03 | 2021-11-03 | Coal mine gas monitoring device |
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| Publication Number | Publication Date |
|---|---|
| CN114019132A true CN114019132A (en) | 2022-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111294038.0A Pending CN114019132A (en) | 2021-11-03 | 2021-11-03 | Coal mine gas monitoring device |
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| CN (1) | CN114019132A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115627220A (en) * | 2022-10-09 | 2023-01-20 | 湖北明德健康科技有限公司 | Gene sequencer convenient to operate and operation method thereof |
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| CN213684250U (en) * | 2020-12-04 | 2021-07-13 | 王克勤 | Coal mine gas concentration monitoring device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115627220A (en) * | 2022-10-09 | 2023-01-20 | 湖北明德健康科技有限公司 | Gene sequencer convenient to operate and operation method thereof |
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