CN216484978U - Detection device is administered to colliery gas in pit - Google Patents
Detection device is administered to colliery gas in pit Download PDFInfo
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- CN216484978U CN216484978U CN202122626623.8U CN202122626623U CN216484978U CN 216484978 U CN216484978 U CN 216484978U CN 202122626623 U CN202122626623 U CN 202122626623U CN 216484978 U CN216484978 U CN 216484978U
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Abstract
The utility model relates to the field of gas control detection devices, and particularly discloses a coal mine underground gas control detection device, which comprises a detection box, two detection mechanisms and two support mechanisms, wherein each support mechanism comprises a support rod, a threaded rod and a fixing unit, each fixing unit comprises a fixing part, a connecting ball, a lower rack plate, an upper rack plate, a positioning part and a rotating seat, the support rod slides in a convergence hole and is in threaded connection with the side wall of the detection box, the support rod is in threaded connection with the threaded rod, the fixing part is in threaded connection with the support rod and is in sliding connection with the connecting ball, the lower rack plate is fixedly connected with the connecting ball and is meshed with the upper rack plate, the positioning part is fixedly connected with the upper rack plate and the lower rack plate, the rotating seat is fixed on the bottom surface of the top wall of the detection box and is rotatably connected with the upper rack plate, and the detection mechanisms are fixedly connected with the threaded rods To (3) is described.
Description
Technical Field
The application relates to the field of gas treatment detection devices, and particularly discloses a detection device for underground gas treatment of a coal mine.
Background
Since the main component of mine gas is methane (accounting for about 80% of harmful gas), and the main harm is also from methane, mine gas refers to methane in a narrow sense, and is widely used in the coal industry.
The coal mine underground gas treatment is a measure for preventing and coping with gas accidents, and ventilation, monitoring, extraction (drainage), power supply, explosion prevention, dust prevention, fire prevention, explosion, danger avoidance and the like are all effective methods for comprehensively preventing and treating gas.
The detection range of the detection device for underground gas control of many coal mines is only limited to the installation position of the detection device or a range of several meters nearby, so that the detection range is smaller, and the practicability of the detection device for underground gas control of coal mines is reduced.
In view of the above, the present invention provides a detection device for gas control in a coal mine, so as to solve the problem that the detection range of many detection devices for gas control in a coal mine is small, which causes the practicality of the detection device for gas control in a coal mine to be lowered.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a coal mine underground gas treatment detection device, which solves the problem that the practicability of the coal mine underground gas treatment detection device is reduced due to the fact that the detection range of a plurality of coal mine underground gas treatment detection devices in the prior art is small.
In order to achieve the aim, the basic scheme of the utility model provides a coal mine underground gas treatment detection device which comprises the following steps: the gas detection device comprises a base, a detection box, two detection mechanisms for detecting gas, two supporting mechanisms for supporting the detection mechanisms and an alarm mechanism, wherein the detection box is fixed on the top surface of the base, each supporting mechanism comprises a convergence block, a supporting rod, a threaded rod and a fixing unit, each fixing unit comprises a fixing part, a connecting ball, a lower rack plate, an upper rack plate, a positioning part and a rotating seat, the convergence blocks are fixed on two opposite side surfaces of the detection box, convergence holes are formed in the convergence blocks, threaded moving holes are formed in the side walls of the detection box, the convergence holes are communicated with the threaded moving holes, the supporting rods slide in the convergence holes, external threads and threaded supporting holes matched with the threaded moving holes are formed in the supporting rods, the threaded rods are matched with the threaded supporting holes, the supporting rods and the threaded rods are in threaded connection through the threaded supporting holes and are in threaded connection with the side walls of the detection box through the threaded moving holes, and the fixing parts are in threaded connection with the supporting rods, and the connecting ball is connected in a sliding manner, one end of the lower rack plate is fixedly connected with the connecting ball, the other end of the lower rack plate is meshed with the upper rack plate, the positioning part is fixedly connected with the upper rack plate and the lower rack plate, the rotating seat is fixed on the bottom surface of the top wall of the detection box and is connected with the upper rack plate in a rotating manner, the detection mechanism is fixedly connected with the threaded rod far away from one end of the supporting rod, the alarm mechanism is fixedly connected with the detection box, and the supporting mechanisms are respectively fixed on two opposite side surfaces of the detection box and are distributed along the central line of the detection box in an asymmetrical manner.
Compared with the prior art, the utility model has the following effects: when the underground gas of the coal mine is detected, the supporting rod is held and starts to rotate, after the supporting rod rotates to a preset position, the threaded rod starts to rotate, the threaded rod stops rotating until the detection mechanism reaches the preset position, then the positioning part is operated to separate the upper rack plate and the lower rack plate, then the lower rack plate is moved to the preset position, the fixing plate is fixed on the supporting rod, then the upper rack plate is rotated to be meshed with the lower rack plate, and finally the positioning part is operated to fix the upper rack plate and the lower rack plate together and start the detection mechanism to detect the underground gas of the coal mine; the support rod can be well placed in the detection box by adopting the convergence block, so that the convenience of moving the support rod and the detection box together is improved; adopt fixed unit can provide the power of upwards pulling for the bracing piece for offset the dead weight of bracing piece, threaded rod and detection mechanism, alleviateed the pressure of bracing piece, increased the life of bracing piece.
Further, the fixed part includes two semicircular plates, four fixed blocks and two fixing bolts, and the fixed block is fixed respectively at two semicircular plate both ends, and sets up the screw thread fixed orifices on the fixed block, and the screw thread fixed orifices cooperatees with fixing bolt, and the board annular plate passes through fixing bolt and fixed block is together fixed, sets up on the semicircular plate with the bracing piece on the internal thread that external screw thread matched with, two semicircular plate threaded connection bracing pieces.
Compared with the prior art, the utility model has the following effects: the two semi-ring plates can be conveniently fixed and separated to the supporting rod, the supporting rod is in threaded connection with the two semi-ring plates, the fixed portion and the supporting rod can be prevented from automatically sliding, and the stability of the relative position of the supporting rod and the fixed portion is improved.
Further, location portion includes the upper positioning plate, the lower positioning plate, positioning bolt and set nut, all set up the location mouth on upper positioning plate and the lower positioning plate, and fix respectively on last rack board and lower rack board side, positioning bolt one end butt is on lower positioning plate top surface, the other end passes the location mouth and the threaded connection set nut of upper positioning plate and lower positioning plate, the bottom surface of set nut butt upper positioning plate, the quantity of location portion is two, and along pinion rack central line symmetrical arrangement down.
Compared with the prior art, the utility model has the following effects: go up the locating plate and fix respectively with locating plate down on last rack board and rack board side down, can conveniently fix last rack board and rack board down, positioning bolt and set nut can conveniently be two to the separation of last rack board and rack board down, and the quantity of location portion can increase rack board and rack board fixed connection's stability down.
Further, detection mechanism is including detecting frame, methane sensor and filter mantle, and the methane sensor is fixed in detecting the frame, and electricity connection alarm mechanism, detects the frame and fixes on the threaded rod keeps away from bracing piece one end, and the filter mantle is fixed on detecting the frame top surface.
Compared with the prior art, the utility model has the following effects: the methane sensor is fixed in detecting the frame, can carry out fine protection to the methane sensor, and the filter mantle is fixed on detecting the frame top surface, can filter the less coal cinder that detects in the gas when providing detection gas for the methane sensor, has increased the life of methane sensor.
Further, alarm mechanism includes signal processing unit, display and two alarms, and signal processing unit fixes on the bottom surface in the detection case, and the display is fixed on the detection case lateral surface, and the alarm is fixed respectively at detection case top surface both ends, and signal processing unit electricity is connected methane sensor, display and alarm.
Compared with the prior art, the utility model has the following effects: the display is fixed on the detection case lateral surface, can in time show the data that the methane sensor detected for the staff, has made things convenient for the staff to the understanding of the gas condition in the pit in the colliery, and the alarm can remind the staff that the gas content in the pit in the colliery has surpassed safety standard, has made things convenient for in time leaving of staff.
Furthermore, the display device also comprises a transparent protection plate which is fixed on the outer side surface of the display.
Compared with the prior art, the utility model has the following effects: transparent protection shield fixes on the display lateral surface, can prevent the destruction of external less coal slay to the display, has increased the life of display, has practiced thrift the cost of maintenance of display.
Further, still include clearance mechanism, clearance mechanism includes two electric putter and cleaning brush, and electric putter one end is fixed on the detection case lateral surface, other end fixed connection cleaning brush, and the cleaning brush is in transparent protection shield top.
Compared with the prior art, the utility model has the following effects: the cleaning brush can in time clean transparent protection shield, prevents that the less coal cinder in the pit in the colliery from adhering to transparent protection shield to lead to the staff to know not comprehensively to the data of gas, improved transparent protection shield's practicality.
Further, the detection box comprises four fixing plates and a handle, fixing holes are formed in the fixing plates and are fixed on the side face of the detection box, and the handle is fixed on the top face of the detection box.
Compared with the prior art, the utility model has the following effects: the fixed plate is provided with the fixed holes and fixed on the side face of the detection box, so that workers can fix and separate the detection box conveniently, and the handle is fixed on the top face of the detection box, so that the convenience of moving the detection box is improved.
Further, still include two brush tubes, the brush tube includes body and a plurality of brush tube hair, and the body is fixed and is kept away from the detection case in the stay tube and serve, and the brush tube hair is fixed on the body internal surface, and the butt threaded rod.
Compared with the prior art, the utility model has the following effects: because the threaded rod is exposed outside for a long time and is easily attached to a large amount of small coal slag, the relative rotation of the threaded rod and the supporting rod cannot be smoothly carried out, and the brush tube can carry out good cleaning on the threaded rod, so that the smoothness of the relative rotation of the threaded rod and the supporting rod is ensured.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a front view of an embodiment of a coal mine underground gas treatment detection device of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is an enlarged view of a portion A of FIG. 2;
FIG. 4 is a partial enlarged view of portion B of FIG. 2;
fig. 5 is a schematic structural view of the cleaning brush in fig. 1.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The following is further detailed by the specific embodiments:
reference numerals in the drawings of the specification include: the methane sensor comprises a base 1, a fixing plate 2, an upper rack plate 3, an alarm 4, a handle 5, an electric push rod 6, a cleaning brush 7, a display 8, a signal processing unit 9, a convergence block 10, a support rod 11, a fixing part 12, a brush tube 13, a lower rack plate 14, a lower positioning plate 15, a threaded rod 16 and a methane sensor 17.
Example (b):
the specific implementation process of the utility model comprises the following steps: a coal mine underground gas treatment detection device is disclosed, as shown in figure 1, figure 2 and figure 3, comprising a base 1, a detection box, two detection mechanisms for detecting gas, two supporting mechanisms for supporting the detection mechanisms and an alarm mechanism, wherein the detection box is fixed on the top surface of the base 1, the supporting mechanisms comprise a convergence block 10, a supporting rod 11, a threaded rod 16 and a fixing unit, the fixing unit comprises a fixing part 12, a connecting ball, a lower rack plate 14, an upper rack plate 3, a positioning part and a rotating seat, the convergence block 10 is fixed on two opposite side surfaces of the detection box, the convergence block 10 is provided with a convergence hole, the side wall of the detection box is provided with a threaded moving hole, the convergence hole is communicated with the threaded moving hole, the supporting rod 11 slides in the convergence hole, the supporting rod 11 is provided with an external thread and a threaded supporting hole matched with the threaded moving hole, the threaded rod 16 is matched with the threaded supporting hole, the supporting rod 11 and the threaded rod 16 are in threaded connection through a threaded supporting hole, and are in threaded connection with the side wall of the detection box through a threaded moving hole, the fixing portion 12 is in threaded connection with the supporting rod 11, the supporting rod is in sliding connection with a ball, one end of the lower rack plate 14 is fixedly connected with the ball, the other end of the lower rack plate is meshed with the upper rack plate 3, the positioning portion is fixedly connected with the upper rack plate 3 and the lower rack plate 14, the rotating seat is fixed on the bottom surface of the top wall of the detection box and is connected with the upper rack plate 3 in a rotating mode, the detection mechanism is fixedly connected with the threaded rod 16 and is far away from one end of the supporting rod 11, the alarm mechanism is fixedly connected with the detection box, the supporting mechanisms are respectively fixed on two opposite side faces of the detection box, and are asymmetrically distributed along the center line of the detection box.
As shown in fig. 1 and 2, the fixing portion 12 includes two semi-ring plates, four fixing blocks and two fixing bolts, the fixing blocks are respectively fixed at two ends of the two semi-ring plates, and threaded fixing holes are formed in the fixing blocks, the threaded fixing holes are matched with the fixing bolts, the plate-ring plates are fixed together with the fixing blocks through the fixing bolts, internal threads matched with external threads on the supporting rods 11 are formed in the semi-ring plates, and the two semi-ring plates are in threaded connection with the supporting rods 11.
As shown in fig. 1 and 3, the positioning portion includes an upper positioning plate, a lower positioning plate 15, positioning bolts and positioning nuts, positioning openings are all formed in the upper positioning plate and the lower positioning plate 15 and are respectively fixed on the side surfaces of the upper rack plate 3 and the lower rack plate 14, one end of each positioning bolt is abutted to the top surface of the lower positioning plate 15, the other end of each positioning bolt penetrates through the positioning openings of the upper positioning plate and the lower positioning plate 15 and is in threaded connection with the positioning nuts, the positioning nuts are abutted to the bottom surface of the upper positioning plate, the number of the positioning portions is two, and the positioning portions are symmetrically arranged along the central line of the lower rack plate.
As shown in fig. 2 and 4, the detection mechanism comprises a detection frame, a methane sensor 17 and a filter cover, the methane sensor 17 is fixed in the detection frame and electrically connected with the alarm mechanism, the detection frame is fixed at one end of the threaded rod 16 far away from the support rod 11, and the filter cover is fixed on the top surface of the detection frame.
As shown in fig. 1 and 2, the alarm mechanism comprises a signal processing unit 9, a display 8 and two alarms 4, the signal processing unit 9 is fixed on the inner bottom surface of the detection box, the display 8 is fixed on the outer side surface of the detection box, the alarms 4 are respectively fixed at two ends of the top surface of the detection box, and the signal processing unit 9 is electrically connected with the methane sensor 17, the display 8 and the alarms 4.
As shown in fig. 1, a transparent protection plate is further included, and the transparent protection plate is fixed on the outer side surface of the display 8.
As shown in fig. 1 and 5, the detection box further comprises a cleaning mechanism, the cleaning mechanism comprises two electric push rods 6 and a cleaning brush 7, one end of each electric push rod 6 is fixed on the outer side surface of the detection box, the other end of each electric push rod 6 is fixedly connected with the cleaning brush 7, and the cleaning brush 7 is arranged above the transparent protection plate.
As shown in fig. 1 and 2, the detection box further comprises four fixing plates 2 and a handle 5, wherein fixing holes are formed in the fixing plates 2 and fixed on the side surface of the detection box, and the handle 5 is fixed on the top surface of the detection box.
As shown in fig. 2, the device further comprises two brush tubes 13, each brush tube 13 comprises a tube body and a plurality of brush tubes 13, the tube body is fixed on one end of the support tube far away from the detection box, and the brush tubes 13 are fixed on the inner surface of the tube body and abut against the threaded rod 16.
When the underground gas of the coal mine is detected, the supporting rod 11 is firstly held and the supporting rod 11 starts to rotate, after the supporting rod 11 rotates to a preset position, the threaded rod 16 starts to rotate, the threaded rod 16 stops rotating until the detection mechanism reaches the preset position, then the positioning part is operated to separate the upper rack plate 3 from the lower rack plate 14, then the lower rack plate 14 is moved to the preset position, the fixing plate 2 is fixed on the supporting rod 11, then the upper rack plate 3 is rotated to enable the upper rack plate 3 to be meshed with the lower rack plate 14, finally the positioning part is operated to fix the upper rack plate 3 and the lower rack plate 14 together and start the detection mechanism to detect the underground gas of the coal mine, the supporting rod 11 is made of high-strength stainless steel, the service life of the supporting rod 11 can be prolonged, and the corrosion of moisture in the underground gas of the coal mine to the supporting rod 11 is prevented.
The two semi-ring plates are moved to the outer surface of the supporting rod 11 to be fixed, then the two semi-ring plates are aligned to enable the central lines of the threaded fixing holes to be the same straight line, then the two semi-ring plates are mutually abutted with the four fixing blocks, and finally the two semi-ring plates are fixed together by using fixing bolts.
The upper rack plate 3 and the lower rack plate 14 are meshed, one end of a positioning bolt penetrates through a positioning opening and extends out, the other end of the positioning bolt abuts against the lower positioning plate 15, and finally a positioning nut is screwed into the positioning bolt to form the fixation of the upper rack plate 3 and the lower rack plate 14.
The alarm 4 can remind workers that the gas content in the underground coal mine exceeds the safety standard, so that the workers can leave the underground coal mine conveniently, and the liquid crystal display 8 has the advantages of thin machine body, small occupied area and small radiation, so that the display 8 adopted by the coal mine underground coal mine alarm is the liquid crystal display 8, and the alarm 4, the signal processing unit 9 and the display 8 are all electrically connected with an external power supply.
The transparent protective plate is made of polycarbonate because polycarbonate has high strength and elastic coefficient, high impact strength, good fatigue resistance, good dimensional stability, small creep (little change under high temperature condition), high transparency and free dyeing property.
When needs carry out the cleanness to transparent protection shield, start electric putter 6 earlier, then cleaning brush 7 can be in electric putter 6's promotion downstream, can pass through transparent protection shield when cleaning brush 7 downstream, can take away the most coal cinder on the transparent protection shield simultaneously, and electric putter 6 electricity is connected external power.
The fixed plate 2 is provided with a fixed hole and fixed on the side face of the detection box, so that workers can fix and separate the detection box conveniently, the handle 5 is fixed on the top face of the detection box, the moving convenience of the detection box is improved, the fixed plate 2 is made of high-strength stainless steel, and the plastic spraying treatment is performed on the outer surface of the handle 5.
Since the threaded rod 16 is exposed for a long time and a large amount of small coal slag is easily attached to the outside, the relative rotation between the threaded rod 16 and the support rod 11 cannot be smoothly performed, the brush tube 13 can well clean the threaded rod 16, and the tube body is made of stainless steel.
The utility model provides a detection device is administered to colliery gas in pit during operation, hold the bracing piece 11 earlier and begin to rotate bracing piece 11, after bracing piece 11 rotates to the preset position, begin to rotate threaded rod 16, just stop rotating threaded rod 16 when detection mechanism reachs the preset position, then operation location portion separation goes up rack board 3 and lower rack board 14, remove lower rack board 14 to preset position department again, let fixed plate 2 fix to bracing piece 11 on, then rotate and go up rack board 3 and let go up rack board 3 and lower rack board 14 meshing, last location portion of operating again fixes last rack board 3 and lower rack board 14 together and start detection mechanism and begin to detect colliery gas in the pit, bracing piece 11 is made by high strength stainless steel, can increase the life of bracing piece 11, prevent the erosion of the moisture in the colliery gas in the pit to bracing piece 11.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (9)
1. A detection device is administered to colliery underground gas which characterized in that: the gas detection device comprises a base, a detection box, two detection mechanisms for detecting gas, two supporting mechanisms for supporting the detection mechanisms and an alarm mechanism, wherein the detection box is fixed on the top surface of the base, each supporting mechanism comprises a convergence block, a supporting rod, a threaded rod and a fixing unit, each fixing unit comprises a fixing part, a connecting ball, a lower rack plate, an upper rack plate, a positioning part and a rotating seat, the convergence blocks are fixed on two opposite side surfaces of the detection box, convergence holes are formed in the convergence blocks, threaded moving holes are formed in the side walls of the detection box, the convergence holes are communicated with the threaded moving holes, the supporting rods slide in the convergence holes, external threads and threaded supporting holes matched with the threaded moving holes are formed in the supporting rods, the threaded rods are matched with the threaded supporting holes, the supporting rods and the threaded rods are in threaded connection through the threaded supporting holes and are in threaded connection with the side walls of the detection box through the threaded moving holes, and the fixing parts are in threaded connection with the supporting rods, and the connecting ball is connected in a sliding manner, one end of the lower rack plate is fixedly connected with the connecting ball, the other end of the lower rack plate is meshed with the upper rack plate, the positioning part is fixedly connected with the upper rack plate and the lower rack plate, the rotating seat is fixed on the bottom surface of the top wall of the detection box and is connected with the upper rack plate in a rotating manner, the detection mechanism is fixedly connected with the threaded rod far away from one end of the supporting rod, the alarm mechanism is fixedly connected with the detection box, and the supporting mechanisms are respectively fixed on two opposite side surfaces of the detection box and are distributed along the central line of the detection box in an asymmetrical manner.
2. The coal mine underground gas treatment detection device according to claim 1, characterized in that: the fixing part comprises two semi-ring plates, four fixing blocks and two fixing bolts, the fixing blocks are fixed at two ends of the two semi-ring plates respectively, threaded fixing holes are formed in the fixing blocks and matched with the fixing bolts, the plate ring plates are fixed with the fixing blocks through the fixing bolts, internal threads matched with external threads on the supporting rods are formed in the semi-ring plates, and the two semi-ring plates are in threaded connection with the supporting rods.
3. The coal mine underground gas treatment detection device according to claim 1, characterized in that: location portion includes the locating plate, locating plate down, positioning bolt and set nut, all set up the location mouth on locating plate and the locating plate down, and fix respectively on last rack board and lower rack board side, positioning bolt one end butt is on locating plate top surface down, the other end passes the location mouth and the threaded connection set nut of locating plate and locating plate down, the bottom surface of locating plate is gone up in the set nut butt, the quantity of location portion is two, and along pinion rack central line symmetrical arrangement down.
4. The coal mine underground gas treatment detection device according to claim 2, characterized in that: detection mechanism is including detecting frame, methane sensor and filter mantle, and the methane sensor is fixed in detecting the frame, and electricity connection alarm mechanism, detects the frame and fixes on the threaded rod keeps away from bracing piece one end, and the filter mantle is fixed on detecting the frame top surface.
5. The device of claim 4, wherein the device comprises: the alarm mechanism comprises a signal processing unit, a display and two alarms, wherein the signal processing unit is fixed on the bottom surface in the detection box, the display is fixed on the outer side surface of the detection box, the alarms are respectively fixed at two ends of the top surface of the detection box, and the signal processing unit is electrically connected with the methane sensor, the display and the alarms.
6. The device of claim 5 for detecting coal mine underground gas governance, wherein: the display device further comprises a transparent protection plate, and the transparent protection plate is fixed on the outer side face of the display device.
7. The coal mine underground gas treatment detection device of claim 5, wherein: still including clearance mechanism, clearance mechanism includes two electric putter and cleaning brush, and electric putter one end is fixed on the detection case lateral surface, and other end fixed connection cleaning brush, cleaning brush are in transparent protection shield top.
8. The device of claim 7, wherein the device comprises: the detection box is characterized by further comprising four fixing plates and handles, fixing holes are formed in the fixing plates and are fixed on the side faces of the detection box, and the handles are fixed on the top face of the detection box.
9. The coal mine underground gas treatment detection device according to claim 1, characterized in that: the brush tube comprises a tube body and a plurality of brush tube bristles, the tube body is fixed on one end, far away from the detection box, of the supporting tube, and the brush tube bristles are fixed on the inner surface of the tube body and abut against the threaded rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122626623.8U CN216484978U (en) | 2021-10-29 | 2021-10-29 | Detection device is administered to colliery gas in pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122626623.8U CN216484978U (en) | 2021-10-29 | 2021-10-29 | Detection device is administered to colliery gas in pit |
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| Publication Number | Publication Date |
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| CN216484978U true CN216484978U (en) | 2022-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122626623.8U Active CN216484978U (en) | 2021-10-29 | 2021-10-29 | Detection device is administered to colliery gas in pit |
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| CN (1) | CN216484978U (en) |
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2021
- 2021-10-29 CN CN202122626623.8U patent/CN216484978U/en active Active
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