CN109098763A - Coal mine roadway surface displacement automated watch-keeping facility - Google Patents
Coal mine roadway surface displacement automated watch-keeping facility Download PDFInfo
- Publication number
- CN109098763A CN109098763A CN201811288986.1A CN201811288986A CN109098763A CN 109098763 A CN109098763 A CN 109098763A CN 201811288986 A CN201811288986 A CN 201811288986A CN 109098763 A CN109098763 A CN 109098763A
- Authority
- CN
- China
- Prior art keywords
- coal mine
- mine roadway
- shell
- fixedly installed
- screw mandrel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003245 coal Substances 0.000 title claims abstract description 50
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 20
- 238000012806 monitoring device Methods 0.000 claims abstract description 25
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 abstract description 14
- 238000004062 sedimentation Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000009975 flexible effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
- E21F17/185—Rock-pressure control devices with or without alarm devices; Alarm devices in case of roof subsidence
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The invention discloses coal mine roadway surface displacement automated watch-keeping facilities, including pedestal, the lower surface of pedestal is fixedly installed with fixed tooth, whole device can be smoothly fixed in coal mine roadway by fixed tooth, fixed tooth can firmly catch ground, to improve the benefit that monitoring device monitors coal mine roadway surface displacement, by driving rotary electric machine double end screw mandrel to be rotated, two indoor mounting bases of movement do back movement along double end screw mandrel, so that the monitoring device that mounting base is connected by connecting rod is monitored the two sidewalls of coal mine roadway, open cylinder, so that cylinder output is fixedly mounted monitoring device and is monitored to coal mine roadway inner roof wall, settlement sensor and pressure sensor are directly anchored on coal mine roadway inner wall, whether monitoring coal mine roadway has the generation of sedimentation phenomenon of rupture in real time, inductor is collected into Data be automatically transmitted at monitoring personnel, adequately play the role of monitoring to coal mine roadway.
Description
Technical field
The present invention relates to a kind of coal mine roadway safety monitoring device field, specifically coal mine roadway surface displacement monitors automatically
Device.
Background technique
There is many security risks during coal mine excavates, and wherein the safety of coal mine roadway is exactly one of them,
The safety of coal mine roadway has directly influenced coal mining work and has been able to carry out, once there are security risks for coal mine roadway, thereafter
Fruit is also hardly imaginable, so current is some whether wanting the safety of real-time monitoring coal mine roadway during coal mining
Monitoring device accurately can't make monitoring to tunnel in real time, and current tunnel size is varied, this requires
Monitoring device allows for adjusting, and adapts to various tunnels with this.
Summary of the invention
The purpose of the present invention is to provide coal mine roadway surface displacement automated watch-keeping facilities, to solve in above-mentioned background technique
The problem of proposition.
In view of the deficiencies of the prior art, the technical problem to be solved in the present invention is to provide a kind of not only easy to use and flexibles
Coal mine roadway surface displacement automated watch-keeping facility relatively strong and that height adjustment can be carried out to the monitoring device of left and right two.
To achieve the above object, the invention provides the following technical scheme:
Coal mine roadway surface displacement automated watch-keeping facility, including pedestal, the upper surface of the pedestal are fixedly installed with vertically
The elevator chamber of setting, and lifting device is equipped in elevator chamber, the output end of the lifting device is fixed with the shell being laterally arranged
Connection, there are two mobile room and a drive chamber for the interior setting of shell, and two mobile rooms are symmetrically distributed in the two sides of drive chamber, drive
Dynamic interior is fixedly installed with rotary electric machine, and the output end of rotary electric machine is equipped with the gear of fixed setting, gear and fixing sleeve
The outer gear ring intermeshing in double end screw mandrel is connect, the both ends of the double end screw mandrel extend respectively to two mobile interiors and pass through
Bearing and the inner sidewall of mobile room are rotatablely connected, and in two mobile indoor double end screw mandrel hand of spiral on the contrary, two shiftings
The mounting base that indoor double end screw mandrel is mounted on threaded connection respectively is moved, and the opposite face of two mounting bases is fixedly mounted
There is the connecting rod being laterally arranged, the other end of connecting rod passes through the through-hole that housing sidewall opens up and is fixedly installed with monitoring device,
The upper surface of the shell is fixedly installed with vertically disposed cylinder, and the output end of cylinder is fixedly installed with identical monitoring dress
It sets.
As a further solution of the present invention: the lifting device is by driving motor, threaded rod, sliding block, sliding seat and pushes away
Bar composition, the driving motor are fixedly mounted on the inner bottom wall of elevator chamber, and one end of the output end of driving motor and threaded rod
It is fixedly connected, the other end of threaded rod runs through the threaded hole that sliding block opens up and is threadedly coupled with threaded hole, and threaded rod passes through end
It is rotatablely connected by the inner roof wall of bearing and elevator chamber, there are two symmetrical slidings for the two sidewalls fixed installation of the sliding block
Seat, and the back of two sliding seats respectively with corresponding lifting box inner wall sliding contact, the upper table of two sliding seats
Face is mounted on vertically disposed push rod, and the other end of two push rods each extends over out the through-hole and shell opened up at the top of elevator chamber
The lower surface of body is fixedly connected.
As a further solution of the present invention: the monitoring device is by mounting blocks, settlement sensor and pressure sensor group
At being opened up on the mounting blocks there are two mounting groove, and be fixedly installed with settlement sensor and pressure respectively in two mounting grooves
Sensor.
As a further solution of the present invention: the double end screw mandrel pass through the threaded hole that opens up of mounting base and with threaded hole spiral shell
Line connection, two mobile interiors are mounted on the slide bar being laterally arranged, and slide bar pass through cunning chamber that mounting base opens up and with cunning chamber
Sliding contact.
As a further solution of the present invention: symmetrical warning lamp and one there are two being fixedly mounted on the shell
A buzzer.
As a further solution of the present invention: the lower surface of the pedestal is fixedly installed with fixed tooth.
Compared with prior art, the beneficial effects of the present invention are:
1, the present invention by starting driving motor drive threaded rod rotation, thus sliding block with the rotation of threaded rod and along
Threaded rod moves linearly, and carries out height adjustment to shell, and the interior monitoring device installed of shell is flexibly adjusted
It saves and the side wall of coal mine roadway different height is monitored, improve the monitoring capability of device.
2, the present invention is by driving rotary electric machine double end screw mandrel to be rotated, and two indoor mounting bases of movement are along double end
Screw rod does back movement, so that the monitoring device that mounting base is connected by connecting rod is monitored the two sidewalls of coal mine roadway,
Open cylinder so that cylinder output be fixedly mounted monitoring device coal mine roadway inner roof wall is monitored, settlement sensor and
Pressure sensor is directly anchored on coal mine roadway inner wall, monitors the hair whether coal mine roadway has sedimentation phenomenon of rupture in real time
Raw, the data that inductor is collected into are automatically transmitted at monitoring personnel, adequately play the role of monitoring to coal mine roadway.
3, the lower surface of pedestal is fixedly installed with fixed tooth in the present invention, can be stable by whole device by fixed tooth
It is fixed in coal mine roadway, fixed tooth can firmly catch ground, to improve monitoring device to coal mine roadway surface displacement
The benefit of monitoring.
Detailed description of the invention
Fig. 1 is the schematic diagram of internal structure of coal mine roadway surface displacement automated watch-keeping facility.
Fig. 2 is the enlarged structure schematic diagram in coal mine roadway surface displacement automated watch-keeping facility at A.
Fig. 3 is the positive structure diagram of coal mine roadway surface displacement automated watch-keeping facility.
In figure: pedestal 1, elevator chamber 2, lifting device 3, driving motor 301, threaded rod 302, sliding block 303, sliding seat 304,
Push rod 305, shell 4, double end screw mandrel 5, outer gear ring 6, rotary electric machine 7, gear 8, mounting base 9, connecting rod 10, monitoring device 11,
Mounting blocks 111, settlement sensor 112, pressure sensor 113, cylinder 12, slide bar 13, warning lamp 14, buzzer 15.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 3, in the embodiment of the present invention, coal mine roadway surface displacement automated watch-keeping facility, including pedestal 1, pedestal 1
Lower surface be fixedly installed with fixed tooth, whole device can be smoothly fixed in coal mine roadway by fixed tooth, it is fixed
Tooth can firmly catch ground, to improve the benefit that monitoring device monitors coal mine roadway surface displacement.
Referring to Fig. 1, the upper surface of pedestal 1 is fixedly installed with vertically disposed elevator chamber 2, and it is equipped with and rises in elevator chamber 2
Falling unit 3, lifting device 3 are made of driving motor 301, threaded rod 302, sliding block 303, sliding seat 304 and push rod 305, driving
Motor 301 is fixedly mounted on the inner bottom wall of elevator chamber 2, and the fixed company in one end of the output end of driving motor 301 and threaded rod 302
It connects, the other end of threaded rod 302 runs through the threaded hole that sliding block 303 opens up and is threadedly coupled with threaded hole, and threaded rod 302 passes through
End is rotatablely connected by the inner roof wall of bearing and elevator chamber 2, and there are two symmetrical cunnings for the two sidewalls fixed installation of sliding block 303
Dynamic seat 304, and the back of two sliding seats 304 respectively with corresponding 2 inner sidewall sliding contact of elevator chamber, two sliding seats
304 upper surface is mounted on vertically disposed push rod 305, and the other end of two push rods 305 each extends over out the top of elevator chamber 2
The through-hole that portion opens up is fixedly connected with the lower surface of shell 4, drives 302 rotation of threaded rod, and spiral shell by starting driving motor 301
Sliding seat 304 and elevator chamber 2 inner sidewall sliding contact of the sliding block 303 being threadedly coupled on rasp bar 302 because of two sides, avoid cunning
The phenomenon that block 303 is rotated with threaded rod 302, so that sliding block 303 is with the rotation of threaded rod 302 and along threaded rod
302 move linearly, and carry out height adjustment to shell 4, and the interior monitoring device 11 installed of shell 4 is flexibly adjusted
It saves and the side wall of coal mine roadway different height is monitored, improve the monitoring capability of device.
Fig. 1 and Fig. 2 are please referred to, there are two mobile room and a drive chamber for setting in shell 4, and two mobile rooms are symmetrically divided
Cloth is fixedly installed with rotary electric machine 7 in the two sides of drive chamber, drive chamber, and the output end of rotary electric machine 7 is equipped with fixation and sets
The gear 8 set, gear 8 are intermeshed with the outer gear ring 6 being fixedly attached in double end screw mandrel 5, and the both ends of double end screw mandrel 5 are prolonged respectively
It extends to two inner sidewalls that are mobile indoor and passing through bearing and mobile room to be rotatablely connected, and in two indoor bipitch silks of movement
5 hand of spiral of bar is on the contrary, two indoor double end screw mandrels 5 of movement are mounted on the mounting base 9 of threaded connection, double end screw mandrel respectively
5 pass through the threaded hole that mounting base 9 opens up and are threadedly coupled with threaded hole, and two mobile interiors are mounted on the slide bar being laterally arranged
13, and slide bar 13 pass through the cunning chamber that opens up of mounting base 9 and with sliding chamber sliding contact, and the opposite face of two mounting bases 9 is solid
Dingan County is equipped with the connecting rod 10 being laterally arranged, and the other end of connecting rod 10 passes through the through-hole and fixed installation that 4 side wall of shell opens up
There is monitoring device 11, the upper surface of shell 4 is fixedly installed with vertically disposed cylinder 12, and the output end of cylinder 12 is fixedly mounted
There is identical monitoring device 11, monitoring device 11 is made of mounting blocks 111, settlement sensor 112 and pressure sensor 113, peace
Mounting groove there are two being opened up on dress block 111, and it is fixedly installed with settlement sensor 112 and pressure sensing respectively in two mounting grooves
Device 113.
After the height for regulating shell 4, rotated by driving rotary electric machine 7 with moving gear 8, and gear 8 and double end screw mandrel 5
On outer gear ring 6 be intermeshed, so that double end screw mandrel 5 is rotated, and in two mobile indoor 5 screw thread sides of double end screw mandrel
To on the contrary, mounting base 9 is not in rotation phenomenon under the limitation of slide bar 13 simultaneously, thus two indoor mounting bases 9 of movement
Back movement is done along double end screw mandrel 5, so that mounting base 9 is started by the monitoring device 11 that connecting rod 10 connects to coal mine roadway
Two sidewalls extend, until left and right two monitoring devices 11 respectively contact with two sidewalls implementation monitor after close rotary electric machine
7, cylinder 12 is hereafter opened, so that 12 output end of cylinder is fixedly mounted monitoring device 11 and is monitored to coal mine roadway inner roof wall,
And settlement sensor 112 and pressure sensor 113 are directly anchored on coal mine roadway inner wall, whether monitor coal mine roadway in real time
Have sedimentation phenomenon of rupture generation, the data that inductor is collected into be automatically transmitted at monitoring personnel (this is the prior art,
Herein without excessively repeating), adequately play the role of monitoring to coal mine roadway, while need to pay attention to when, this equipment is most
Amount, which is maintained on the middle line of coal mine roadway, to be monitored.
Symmetrical warning lamp 14 and a buzzer 15 there are two being fixedly mounted on shell 4, settlement sensor 112
Whether monitoring coal mine roadway has the generation for settling phenomenon of rupture in real time with pressure sensor 113, settles phenomenon of rupture when having
When generation, warning lamp 14 and buzzer 15 will carry out early warning immediately.
In the present solution, driving motor 301 uses Y80M1-2 model, rotary electric machine 7 uses Y80M2-2 model, rotary electric machine
7 operation circuits are that conventional motor positive and negative rotation controls program, and driving motor 301 operates to existing custom circuit, settlement sensor 112
Product type be HLI-106T, the product type of pressure sensor 113 is MIK-P300, various electronic components and control,
Circuit etc. is installed by professional technician, is arranged.
Circuit involved in the present invention and control are the prior art, herein without excessively repeating.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art,
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement, all within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this
Within the protection scope of invention.
Claims (6)
1. coal mine roadway surface displacement automated watch-keeping facility, including pedestal (1), which is characterized in that the upper surface of the pedestal (1)
It is fixedly installed with vertically disposed elevator chamber (2), and is equipped with lifting device (3) in elevator chamber (2), the lifting device (3)
Output end is fixedly connected with the shell (4) being laterally arranged, and there are two move room and a drive chamber, and two for setting in shell (4)
A mobile room is symmetrically distributed in the two sides of drive chamber, is fixedly installed in drive chamber rotary electric machine (7), and rotary electric machine (7)
Output end is equipped with the gear (8) of fixed setting, and gear (8) and the outer gear ring (6) being fixedly attached on double end screw mandrel (5) are mutual
Engagement, the both ends of the double end screw mandrel (5) extend respectively to two inner sidewalls that are mobile indoor and passing through bearing and mobile room and turn
Dynamic connection, and in two mobile indoor double end screw mandrel (5) hand of spiral on the contrary, the indoor double end screw mandrel (5) of two movements
It is mounted on the mounting base (9) of threaded connection respectively, and the opposite face of two mounting bases (9) is fixedly installed with lateral setting
Connecting rod (10), the other end of connecting rod (10) passes through the through-hole that shell (4) side wall opens up and is fixedly installed with monitoring device
(11), the upper surface of the shell (4) is fixedly installed with vertically disposed cylinder (12), and the fixed peace of output end of cylinder (12)
Equipped with identical monitoring device (11).
2. coal mine roadway surface displacement automated watch-keeping facility according to claim 1, which is characterized in that the lifting device
(3) it is made of driving motor (301), threaded rod (302), sliding block (303), sliding seat (304) and push rod (305), the driving
Motor (301) is fixedly mounted on the inner bottom wall of elevator chamber (2), and the one of the output end of driving motor (301) and threaded rod (302)
End is fixedly connected, and the other end of threaded rod (302) runs through the threaded hole that sliding block (303) open up and is threadedly coupled with threaded hole, spiral shell
The end that passes through of rasp bar (302) is rotatablely connected by bearing and the inner roof wall of elevator chamber (2), and the two sidewalls of the sliding block (303) are solid
Dingan County's dress there are two symmetrical sliding seat (304), and the back of two sliding seats (304) respectively with corresponding elevator chamber
(2) upper surface of inner sidewall sliding contact, two sliding seats (304) is mounted on vertically disposed push rod (305), and two
The other end of a push rod (305) each extends over out the fixed company in lower surface of the through-hole and shell (4) that open up at the top of elevator chamber (2)
It connects.
3. coal mine roadway surface displacement automated watch-keeping facility according to claim 1, which is characterized in that the monitoring device
(11) it is made of mounting blocks (111), settlement sensor (112) and pressure sensor (113), is opened up on the mounting blocks (111)
There are two mounting grooves, and are fixedly installed with settlement sensor (112) and pressure sensor (113) in two mounting grooves respectively.
4. coal mine roadway surface displacement automated watch-keeping facility according to claim 1, which is characterized in that the double end screw mandrel
(5) it passes through mounting base (9) threaded hole for opening up and is threadedly coupled with threaded hole, two mobile interiors, which are mounted on, to be laterally arranged
Slide bar (13), and slide bar (13) pass through mounting base (9) cunning chamber for opening up and with sliding chamber sliding contact.
5. coal mine roadway surface displacement automated watch-keeping facility according to claim 1, which is characterized in that the shell (4)
There are two symmetrical warning lamp (14) and a buzzers (15) for upper fixed installation.
6. coal mine roadway surface displacement automated watch-keeping facility according to claim 1, which is characterized in that the pedestal (1)
Lower surface be fixedly installed with fixed tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811288986.1A CN109098763A (en) | 2018-10-31 | 2018-10-31 | Coal mine roadway surface displacement automated watch-keeping facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811288986.1A CN109098763A (en) | 2018-10-31 | 2018-10-31 | Coal mine roadway surface displacement automated watch-keeping facility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109098763A true CN109098763A (en) | 2018-12-28 |
Family
ID=64870013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811288986.1A Pending CN109098763A (en) | 2018-10-31 | 2018-10-31 | Coal mine roadway surface displacement automated watch-keeping facility |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109098763A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578554A (en) * | 2019-08-09 | 2019-12-17 | 吴金萍 | portable full-automatic coal mine collapse early warning protection device and use method |
| CN111765863A (en) * | 2020-07-24 | 2020-10-13 | 莱州汇金矿业投资有限公司 | Measuring device for mine tunnel control point |
| CN112361923A (en) * | 2020-11-04 | 2021-02-12 | 华北科技学院 | Measuring device for monitoring coal mine tunnel roof deviation |
| CN113281102A (en) * | 2021-03-31 | 2021-08-20 | 陆玉明 | A get whitewashed device for coal mine tunnel geology |
| CN113294209A (en) * | 2021-05-19 | 2021-08-24 | 徐州中安防爆电器制造有限公司 | Mining ann's type smoke transducer installation device |
| CN114232582A (en) * | 2022-01-29 | 2022-03-25 | 浙江中浩应用工程技术研究院有限公司 | Foundation pit intelligent monitoring system |
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| KR101317629B1 (en) * | 2013-02-25 | 2013-10-18 | 한국지질자원연구원 | Displacement monitoring device and method thereof for rock masses |
| CN206707768U (en) * | 2017-04-20 | 2017-12-05 | 江苏中安科技服务有限公司 | A kind of coal mine roadway safety detection device |
| CN206917677U (en) * | 2017-07-26 | 2018-01-23 | 大冶有色设计研究院有限公司 | A kind of mine down-hole self closing door |
| CN207336751U (en) * | 2017-10-18 | 2018-05-08 | 苏州贝龙光电科技有限公司 | A kind of laser ranging system easy to multidirectional adjusting |
| CN207813653U (en) * | 2017-11-08 | 2018-09-04 | 许宏鹏 | A kind of laneway apical plate abscission |
| CN212250150U (en) * | 2018-10-31 | 2020-12-29 | 安徽理工大学 | Automatic monitoring device for coal mine tunnel surface displacement |
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| KR101317629B1 (en) * | 2013-02-25 | 2013-10-18 | 한국지질자원연구원 | Displacement monitoring device and method thereof for rock masses |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578554A (en) * | 2019-08-09 | 2019-12-17 | 吴金萍 | portable full-automatic coal mine collapse early warning protection device and use method |
| CN111765863A (en) * | 2020-07-24 | 2020-10-13 | 莱州汇金矿业投资有限公司 | Measuring device for mine tunnel control point |
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| CN112361923A (en) * | 2020-11-04 | 2021-02-12 | 华北科技学院 | Measuring device for monitoring coal mine tunnel roof deviation |
| CN112361923B (en) * | 2020-11-04 | 2022-02-01 | 华北科技学院 | Measuring device for monitoring coal mine tunnel roof deviation |
| CN113281102A (en) * | 2021-03-31 | 2021-08-20 | 陆玉明 | A get whitewashed device for coal mine tunnel geology |
| CN113294209A (en) * | 2021-05-19 | 2021-08-24 | 徐州中安防爆电器制造有限公司 | Mining ann's type smoke transducer installation device |
| CN113294209B (en) * | 2021-05-19 | 2023-08-29 | 徐州中安防爆电器制造有限公司 | Mining intrinsic safety type smoke sensor mounting device |
| CN114232582A (en) * | 2022-01-29 | 2022-03-25 | 浙江中浩应用工程技术研究院有限公司 | Foundation pit intelligent monitoring system |
| CN114232582B (en) * | 2022-01-29 | 2022-09-02 | 浙江中浩应用工程技术研究院有限公司 | Foundation pit intelligent monitoring system |
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