CN113008832B - Detection device for detecting methane gas in coal mine - Google Patents
Detection device for detecting methane gas in coal mine Download PDFInfo
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- CN113008832B CN113008832B CN202110239099.0A CN202110239099A CN113008832B CN 113008832 B CN113008832 B CN 113008832B CN 202110239099 A CN202110239099 A CN 202110239099A CN 113008832 B CN113008832 B CN 113008832B
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 239000003245 coal Substances 0.000 title claims abstract description 20
- 238000001514 detection method Methods 0.000 title claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 44
- 230000009471 action Effects 0.000 claims abstract description 8
- 230000005389 magnetism Effects 0.000 claims abstract description 7
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 11
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 11
- 241001330002 Bambuseae Species 0.000 claims description 11
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 11
- 239000011425 bamboo Substances 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 claims description 7
- 239000013013 elastic material Substances 0.000 claims description 4
- 239000000428 dust Substances 0.000 abstract description 5
- 239000012535 impurity Substances 0.000 abstract description 5
- 238000001125 extrusion Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 101100441413 Caenorhabditis elegans cup-15 gene Proteins 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical group [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002153 concerted effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000001228 spectrum 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
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/39—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D47/00—Equipment not otherwise provided for
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- General Health & Medical Sciences (AREA)
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- Life Sciences & Earth Sciences (AREA)
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- Pathology (AREA)
- Biochemistry (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention relates to a detection device for detecting methane gas in a coal mine, which comprises a laser detector, a sleeve, a loading barrel and a bottom barrel, wherein the bottom barrel can do telescopic motion along the loading barrel, an annular inner plate is fixed on the inner wall of the loading barrel, a sealing sleeve is fixed at the bottom of the inner plate, the cross section of the bottom of the sealing sleeve is rectangular, magnet strips are fixed on two sides of the bottom of the sealing sleeve, the opposite sides of the two magnet strips are opposite in magnetism, and sealing gaskets are fixed on the opposite sides of the two magnet strips; the two sides of the inner wall of the bottom cylinder are respectively fixed with a magnet plate, and an in-out space is enclosed between the magnet plates at the two sides; when the bottom barrel moves and is arranged in the loading barrel, the bottom of the sealing sleeve enters the inlet and outlet space, the two magnet strips move in opposite directions and are adsorbed through the repulsion action between the magnet plate and the magnet strips on the same side, and then the sealing bottom the sealing sleeve is realized by the adhesion of the two sealing gaskets, so that the pollution of the laser emission end at the bottom of the laser measuring instrument caused by external dust and other impurities can be prevented.
Description
Technical Field
The invention relates to the technical field of coal mine methane detection, in particular to a detection device for detecting methane gas in a coal mine.
Background
Gas explosion is always a great harm to coal mine production in China, and the detection of coal mine gas becomes more and more important. The methane gas is a main component of the coal mine gas, so that the detection of the concentration and the change of the methane gas has important significance for the detection of the coal mine gas. The laser methane gas detector is a novel gas sensor developed based on a tunable laser spectrum absorption principle, and the laser methane gas detector is free from environmental temperature and humidity and influence of interference gas by the fact that molecular absorption wavelength of gas is irrelevant to external temperature and pressure and mutually-noninterference wavelength absorption characteristics exist among different gas molecules.
When the laser methane gas detector is used, manual hand-held detection is often adopted, or the detector is carried to carry out detection in the air. The unmanned detection is safer, the workers are not easy to be dangerous, and the probability of accidents is reduced. However, when the unmanned aerial vehicle is adopted for detection, accidents of crash are easy to happen; and in case unmanned aerial vehicle takes place to fall, outside dust and other impurity can cause the pollution to the laser emission end of laser measuring instrument bottom, influence the laser measuring instrument and use.
Disclosure of Invention
The invention aims to provide a detection device for detecting methane gas in a coal mine, which can prevent external dust and other impurities from polluting a laser emission end at the bottom of a laser measuring instrument.
In order to solve the technical problems, the invention provides the following technical scheme: a detection device for detecting methane gas in a coal mine comprises a laser detector, a sleeve for mounting the laser detector and a loading barrel, wherein the bottom of the sleeve is telescopically sleeved in the loading barrel; the bottom of the loading cylinder is connected with a bottom cylinder in a sleeved mode, and the bottom cylinder can move in a telescopic mode along the loading cylinder;
an annular inner plate is fixed on the inner side wall of the loading barrel, a sealing sleeve is fixed at the bottom of the inner plate, the cross section of the bottom of the sealing sleeve is rectangular, magnet strips are respectively fixed on two sides of the bottom of the sealing sleeve, the opposite sides of the two magnet strips are opposite in magnetism, and sealing gaskets are further fixed on the opposite sides of the two magnet strips;
the two sides of the inner wall of the bottom cylinder are respectively fixed with a magnet plate, the magnet plates on the two sides jointly enclose an in-out space which is matched with the bottom shape of the sealing sleeve, and the magnet plates on the same side and the opposite side surfaces of the magnet strips have the same magnetism;
when the bottom barrel moves and is arranged in the loading barrel, the bottom of the sealing sleeve enters the inlet and outlet space, the two magnet strips move in opposite directions and are adsorbed together through the repulsion action between the magnet plate and the magnet strips on the same side, and then the sealing operation at the bottom of the sealing sleeve is realized by the adhesion of the two sealing gaskets.
On the basis of the scheme, an elastic telescopic rod is fixed on the inner plate, and the telescopic end of the elastic telescopic rod is fixedly connected to the top of the bottom barrel.
On the basis of the scheme, an annular first magnet ring is fixed on the outer side wall of the bottom barrel, and a first iron ring corresponding to the first magnet ring is fixed at the bottom of the loading barrel; when the bottom barrel moves to enable the bottom of the sealing sleeve to enter the in-out space, the first magnet ring and the first iron ring are adsorbed.
On the basis of the scheme, the top of the bottom barrel is fixedly provided with a sucker corresponding to the inner plate; when the bottom barrel moves to enable the bottom of the sealing sleeve to enter the in-out space, the sucker is adsorbed on the bottom surface of the inner plate.
On the basis of the scheme, a resistance ring is sleeved outside the loading barrel, and the resistance ring is fixedly connected with the loading barrel through a plurality of uniformly distributed transverse plates; the adjacent two transverse plates, the resistance ring and the loading cylinder enclose a space in which a buffer belt is fixed.
On the basis of the scheme, the bottom of the bottom barrel is fixedly provided with the sheath made of elastic materials, the bottom of the transverse plate is fixedly provided with the elastic rod, and the bottom end of the elastic rod is higher than the bottom end of the sheath.
On the basis of the scheme, the inner wall of the sheath is fixedly provided with the inner retaining ring, one side of the sheath is rotatably connected with a cover plate, and the cover plate can rotate to realize the sealing of the inner retaining ring by abutting against the inner retaining ring.
On the basis of the scheme, a fixing mechanism for clamping the laser detector is fixed in the sleeve, at least two clamping plates are uniformly distributed at the top of the sleeve, each clamping plate is rotatably connected with the top of the sleeve, and one end of each clamping plate, corresponding to the inner cavity of the sleeve, is connected to the same circular table through a connecting rod;
the outer side wall of the sleeve is provided with a vertically distributed moving groove, a push plate is connected in the moving groove in a sliding manner, and a first spring is fixed between the push plate and the inner top of the moving groove; the bottom end of the sleeve is fixedly provided with a rotatable pulley, the bottom of the circular truncated cone is fixedly provided with a pull rope, and one end of the pull rope is fixedly connected with the push plate after bypassing the pulley;
when the bottom of the sleeve moves towards the inside of the loading barrel, the top of the loading barrel can push the push plate to move, and the push plate can pull the pull rope to further pull the circular truncated cone to move so as to drive the clamping plates to turn towards the middle of the sleeve.
On the basis of the scheme, the mounting groove corresponding to each clamping plate is formed in the bottom end of the sleeve, each clamping plate is rotatably mounted in the mounting groove through the rotating rod respectively, and the reset spring is mounted at the connecting part of each rotating rod and the corresponding mounting groove.
On the basis of the scheme, the fixing mechanism comprises two fixing plates fixedly connected to the inner wall of the sleeve and an extrusion plate positioned between the two fixing plates, wherein a second spring is fixedly connected between the extrusion plate and one fixing plate, and an adjusting bolt penetrates through the fixing plates in a threaded connection mode and then is rotatably connected with the extrusion plate.
Compared with the prior art, the invention has the beneficial effects that: after the measuring device is installed on the unmanned aerial vehicle, if the unmanned aerial vehicle falls, the bottom barrel moves under the action of impact force and is placed in the loading barrel, so that the bottom of the sealing sleeve enters the inlet and outlet space, the two magnet strips can be driven to move oppositely and be adsorbed together through the repulsion action between the magnet plates and the magnet strips on the same side, the two sealing gaskets are attached to realize the sealing operation of the bottom of the sealing sleeve, the laser detector is isolated from the environment of the bottom, and external dust and other impurities cannot pollute the laser emission end of the bottom of the laser detector.
Drawings
FIG. 1 is a schematic side view of the detecting device of the present invention;
FIG. 2 is a schematic view of the fitting relationship between the clamping plate and the circular truncated cone of the present invention;
FIG. 3 is a schematic view showing the fitting relationship between the push plate and the moving groove on the outer side wall of the sleeve according to the present invention;
FIG. 4 is a schematic structural view of a fixing mechanism according to the present invention;
FIG. 5 is a schematic view of the fitting relationship between the loading barrel and the bottom barrel according to the present invention;
FIG. 6 is a schematic view of the resistance ring and the loading barrel of the present invention;
figure 7 is a schematic cross-sectional view of the bottom of the sealing sleeve of the present invention;
FIG. 8 is a schematic view of the space enclosed by two magnet plates according to the present invention;
the reference numbers in the figures are: 1. a loading cylinder; 2. a resistance ring; 3. a first magnet ring; 4. a first ferrous ring; 5. a bottom cylinder; 6. a sheath; 7. an elastic rod; 8. pushing the plate; 9. a sleeve; 10. a splint; 11. an inner plate; 12. a sealing sleeve; 13. an elastic telescopic rod; 14. a magnet bar; 15. a suction cup; 16. a pin shaft; 17. a cover plate; 18. a transverse plate; 19. a buffer zone; 20. a first spring; 21. a moving groove; 22. an inner baffle ring; 23. pulling a rope; 24. a pulley; 25. adjusting the bolt; 26. mounting grooves; 27. a second spring; 28. a fixing plate; 29. a pressing plate; 30. a connecting rod; 31. a magnet plate; 32. a gasket; 33-round table, 34-in and out space.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1 to 8, a detection device for detecting methane gas in a coal mine comprises a laser detector, a sleeve 9 for mounting the laser detector, and a loading cylinder 1, wherein the bottom of the sleeve 9 is sleeved on the upper part of the loading cylinder 1 in a threaded connection manner, the bottom of the loading cylinder 1 is sleeved with a bottom cylinder 5, and the bottom cylinder 5 can move telescopically along the loading cylinder 1. The laser detector is a device in the prior art and does not need to be described any more.
The sleeve 9 is internally fixed with a fixing mechanism for clamping the laser detector, the fixing mechanism comprises two fixing plates 28 fixedly connected to the inner wall of the sleeve 9 and a squeezing plate 29 positioned between the two fixing plates 28, a second spring 27 is fixedly connected between the squeezing plate 29 and one fixing plate 28, and an adjusting bolt 25 penetrates through the fixing plate 28 in a threaded connection manner and then is rotatably connected with the squeezing plate 29. A laser detector for detecting methane gas in a coal mine is arranged between an extrusion plate 29 and another fixing plate 28, and the adjusting bolt 25 is rotated to enable the extrusion plate 29 to clamp the laser detector, so that the laser detector is fixed; the laser detector is suitable for being fixed and used by laser detectors with different sizes, and the applicability is strong.
The sleeve 9 top is distributing three two splint 10 evenly, and each splint 10 all rotationally is connected with the sleeve 9 top, specifically, the mounting groove 26 corresponding with each splint 10 is seted up to sleeve 9 bottom, and each splint 10 rotationally installs in mounting groove 26 through the dwang respectively, and each dwang all installs reset spring with the junction that corresponds the mounting groove 26 inside to make splint reset when need not using splint. One end of each clamping plate 10, which corresponds to the inner cavity of the sleeve 9, is connected to the same circular table 33 through a connecting rod 30, and a pull rope 23 is fixed at the bottom of the circular table 33. The outer side wall of the sleeve 9 is provided with a vertically distributed moving groove 21, the moving groove 21 is connected with a push plate 8 in a sliding way, and a first spring 20 is fixed between the push plate 8 and the inner top of the moving groove 21; the bottom end of the sleeve 9 is fixedly provided with a rotatable pulley 24, and one end of the pull rope 23 is fixedly connected with the push plate 8 after passing around the pulley 24.
Install sleeve 9 bottom on loading a section of thick bamboo 1 to a rotatory loading section of thick bamboo 1, can make sleeve 9 go deep into loading a section of thick bamboo 1 in, when sleeve 9 bottom removes to loading a section of thick bamboo 1, loading a section of thick bamboo 1 top can promote the push pedal 8 and remove, push pedal 8 then can draw stay cord 23 and then draw round platform 33 and remove and do the rolling over motion in order to order about each splint 10 towards sleeve 9 middle part, can install the measuring device of this application on unmanned aerial vehicle with the help of the clamping action that makes a concerted effort of three splint 10. Certainly, to the threaded connection mode that adopts between above-mentioned sleeve and the loading cylinder, also can replace with the joint mode, for example, when the joint was together when loading cylinder was put into to telescopic bottom, loading cylinder promotes the push pedal and removes and also has drawn the stay cord and make three splint centre gripping fix on unmanned aerial vehicle this moment.
It is to be emphasized that in the present application, the assembly action of the sleeve 9 with the loading tube 1 and the clamping plate 10 with the clamping and fixing action of the drone are in a coordinated relationship.
Meanwhile, the exterior of the loading cylinder 1 is sleeved with a resistance ring 2, and the resistance ring 2 is fixedly connected with the loading cylinder 1 through a plurality of uniformly distributed transverse plates 18; buffer belts 19 are fixed in the space enclosed by the two adjacent transverse plates 18, the resistance ring 2 and the loading cylinder 1, and the buffer belts 19 are plastic films. If unmanned aerial vehicle takes place to fall among the measurement process, at the in-process that descends, the buffer zone 19 receives upwards expansion behind the blowing of air current, and then can increase the resistance that descends the in-process, has reduced the speed that unmanned aerial vehicle falls to reduce the impact that unmanned aerial vehicle falls on the ground, and the direction is stable when just helping falling, is difficult for taking place to turn on one's side.
Moreover, the bottom of the bottom tube 5 is fixed with a sheath 6 made of elastic material, the elastic material is made of rubber, the bottom of the transverse plate 18 is fixed with an elastic rod 7, and the bottom end of the elastic rod 7 is higher than the bottom end of the sheath 6. When unmanned aerial vehicle fell to the ground, sheath 6 earlier with ground contact, played the cushioning effect, reduced the impact that unmanned aerial vehicle received, then sheath 6 receives the striking and warp the back, elastic rod 7 all around plays the cushioning effect for it is more stable after dropping to load a section of thick bamboo 1.
Moreover, an inner retaining ring 22 is fixed on the inner wall of the sheath 6, a cover plate 17 is rotatably connected to one side of the sheath 6, and the cover plate 17 can rotate to abut against the inner retaining ring 22 to realize the sealing of the inner retaining ring 22. In the process of falling, receive the promotion of air current, apron 17 upset forms the encapsulated situation with interior fender ring 22 butt, and then apron 17 can carry out the shutoff to the bottom of sheath 6, plays the effect of preliminary shutoff.
Meanwhile, an annular inner plate 11 is fixed on the inner side wall of the loading barrel 1, a sealing sleeve 12 is fixed at the bottom of the inner plate 11, the cross section of the bottom of the sealing sleeve 12 is rectangular, magnet strips 14 are respectively fixed on two sides of the bottom of the sealing sleeve 12, the opposite sides of the two magnet strips 14 are opposite in magnetism, and sealing gaskets 32 are further fixed on the opposite sides of the two magnet strips 14. An elastic telescopic rod 13 is fixed on the inner plate 11, and the telescopic end of the elastic telescopic rod 13 is fixedly connected to the top of the bottom barrel 5. The two sides of the inner wall of the bottom barrel 5 are respectively fixed with a magnet plate 31, the magnet plates 31 on the two sides jointly enclose an in-out space 34 which is matched with the bottom shape of the sealing sleeve 12, and the magnet plates 31 and the magnet strips 14 which are positioned on the same side have the same magnetism.
After the end section of thick bamboo 5 receives the striking, compress the flexible end of the elastic telescopic link 13 on upper portion, the flexible end of elastic telescopic link 13 upwards contracts the back, end section of thick bamboo 5 removes and arranges in loading section of thick bamboo 1, make the bottom of seal cover 12 get into in-out space 34, can order about two magnet strips 14 through the repulsion between magnet plate 31 and the magnet strip 14 with one side and move in opposite directions and adsorb together, and then make the sealed operation of seal cover 12 bottom of two sealed pad 32 laminating realization, make laser detector and the environment of bottom isolated, outside dust and other impurity can not cause the pollution to the laser emission end of laser measuring apparatu bottom.
A suction cup 15 corresponding to the inner plate 11 is fixed on the top of the bottom cylinder 5; an annular first magnet ring 3 is fixed on the outer side wall of the bottom barrel 5, and a first iron ring 4 corresponding to the first magnet ring 3 is fixed at the bottom of the loading barrel 1; when the bottom barrel 5 moves to enable the bottom of the sealing sleeve 12 to enter the in-out space 34, the first magnet ring 3 and the first iron ring 4 are adsorbed, the sucking disc 15 is adsorbed on the bottom surface of the inner plate 11, and the bottom barrel 5 is connected with the loading barrel 1. When the laser detector needs to be reused, the bottom cylinder 5 is pulled down to separate the sucker 15 from the inner plate 11, the first magnet ring 3 from the first iron ring 4, and the two magnet strips 14.
Claims (10)
1. The utility model provides a detection apparatus for be arranged in carrying out detection to methane gas in colliery, includes laser detector, is used for installing laser detector's sleeve, a loading section of thick bamboo, upper portion, its characterized in that in the loading section of thick bamboo are adorned to telescopic bottom retractable suit:
the bottom of the loading cylinder is connected with a bottom cylinder in a sleeved mode, and the bottom cylinder can move in a telescopic mode along the loading cylinder;
an annular inner plate is fixed on the inner side wall of the loading cylinder, a sealing sleeve is fixed at the bottom of the inner plate, the cross section of the bottom of the sealing sleeve is rectangular, magnet strips are respectively fixed on two sides of the bottom of the sealing sleeve, the opposite sides of the two magnet strips are opposite in magnetism, and sealing gaskets are also fixed on the opposite sides of the two magnet strips;
the two sides of the inner wall of the bottom cylinder are respectively fixed with a magnet plate, the magnet plates on the two sides jointly enclose an in-out space which is matched with the bottom shape of the sealing sleeve, and the magnet plates on the same side and the opposite side surfaces of the magnet strips have the same magnetism;
when the bottom barrel moves and is arranged in the loading barrel, the bottom of the sealing sleeve enters the inlet and outlet space, the two magnet strips move in opposite directions and are adsorbed together through the repulsion action between the magnet plate and the magnet strips on the same side, and then the sealing operation of the bottom of the sealing sleeve is realized by the attachment of the two sealing gaskets.
2. The device for detecting methane gas in a coal mine according to claim 1, wherein an elastic telescopic rod is fixed on the inner plate, and the telescopic end of the elastic telescopic rod is fixedly connected to the top of the bottom cylinder.
3. The detection device for detecting the methane gas in the coal mine according to claim 1, wherein an annular first magnetic ring is fixed on an outer side wall of the bottom cylinder, and a first iron ring corresponding to the first magnetic ring is fixed on the bottom of the loading cylinder; when the bottom barrel moves to enable the bottom of the sealing sleeve to enter the in-out space, the first magnet ring and the first iron ring are adsorbed.
4. The device for detecting the methane gas in the coal mine according to claim 1, wherein a sucker corresponding to an inner plate is fixed at the top of the bottom cylinder; when the bottom barrel moves to enable the bottom of the sealing sleeve to enter the in-out space, the sucker is adsorbed on the bottom surface of the inner plate.
5. The device for detecting the methane gas in the coal mine according to claim 1, wherein a resistance ring is sleeved outside the loading barrel, and the resistance ring is fixedly connected with the loading barrel through a plurality of uniformly distributed transverse plates; the buffer belt is fixed in the space enclosed by the two adjacent transverse plates, the resistance ring and the loading cylinder.
6. The device of claim 5, wherein the bottom of the bottom cylinder is fixed with a sheath made of elastic material, the bottom of the transverse plate is fixed with an elastic rod, and the bottom end of the elastic rod is higher than the bottom end of the sheath.
7. The device of claim 6, wherein the inner baffle ring is fixed to the inner wall of the sheath, and a cover plate is rotatably connected to one side of the sheath and is rotatable to abut against the inner baffle ring to close the inner baffle ring.
8. The device for detecting methane gas in a coal mine according to claim 1, wherein a fixing mechanism for clamping a laser detector is fixed in the sleeve, at least two clamping plates are uniformly distributed on the top of the sleeve, each clamping plate is rotatably connected with the top of the sleeve, and one end of each clamping plate corresponding to the inner cavity of the sleeve is connected with the same circular table through a connecting rod;
the outer side wall of the sleeve is provided with a vertically distributed moving groove, a push plate is connected in the moving groove in a sliding manner, and a first spring is fixed between the push plate and the inner top of the moving groove; the bottom end of the sleeve is fixedly provided with a rotatable pulley, the bottom of the circular truncated cone is fixedly provided with a pull rope, and one end of the pull rope is fixedly connected with the push plate after bypassing the pulley;
when the bottom of the sleeve moves towards the inside of the loading barrel, the top of the loading barrel can push the push plate to move, and the push plate can pull the pull rope to further pull the circular truncated cone to move so as to drive the clamping plates to turn towards the middle of the sleeve.
9. The device for detecting methane gas in a coal mine according to claim 8, wherein a mounting groove corresponding to each clamping plate is formed at a bottom end of the sleeve, each clamping plate is rotatably mounted in the mounting groove through a rotating rod, and a return spring is mounted at a joint between each rotating rod and the corresponding mounting groove.
10. The coal mine methane gas detection device according to claim 8, wherein the fixing mechanism comprises two fixing plates fixedly connected to the inner wall of the sleeve, and a squeeze plate located between the two fixing plates, wherein a second spring is fixedly connected between the squeeze plate and one fixing plate, and an adjusting bolt is threaded through the fixing plate and then rotatably connected with the squeeze plate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110239099.0A CN113008832B (en) | 2021-03-04 | 2021-03-04 | Detection device for detecting methane gas in coal mine |
| ZA2021/04546A ZA202104546B (en) | 2021-03-04 | 2021-06-30 | A detection device suitable for measuring methane gas in coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110239099.0A CN113008832B (en) | 2021-03-04 | 2021-03-04 | Detection device for detecting methane gas in coal mine |
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| Publication Number | Publication Date |
|---|---|
| CN113008832A CN113008832A (en) | 2021-06-22 |
| CN113008832B true CN113008832B (en) | 2022-09-02 |
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| CN202110239099.0A Active CN113008832B (en) | 2021-03-04 | 2021-03-04 | Detection device for detecting methane gas in coal mine |
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| ZA (1) | ZA202104546B (en) |
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| CN116952900B (en) * | 2023-09-18 | 2023-11-28 | 中国矿业大学 | Coal bed gas concentration detection device and measurement method |
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| CN113008832A (en) | 2021-06-22 |
| ZA202104546B (en) | 2021-07-28 |
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