CN112150770A - Mine geological environment early warning device - Google Patents
Mine geological environment early warning device Download PDFInfo
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- CN112150770A CN112150770A CN202011054804.1A CN202011054804A CN112150770A CN 112150770 A CN112150770 A CN 112150770A CN 202011054804 A CN202011054804 A CN 202011054804A CN 112150770 A CN112150770 A CN 112150770A
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- trapezoidal
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/10—Alarms for ensuring the safety of persons responsive to calamitous events, e.g. tornados or earthquakes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01W—METEOROLOGY
- G01W1/00—Meteorology
- G01W1/02—Instruments for indicating weather conditions by measuring two or more variables, e.g. humidity, pressure, temperature, cloud cover or wind speed
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Abstract
The invention discloses a mine geological environment early warning device, which comprises a foundation, a fixed seat, a fixed plate, a strut, a rain cover and an early warning box, wherein a trapezoidal groove is formed in the middle of the foundation, a dead slot is formed in the fixed seat, two trapezoidal sliding blocks are symmetrically arranged on the left side and the right side in the dead slot, the two trapezoidal sliding blocks are in sliding fit with the dead slot, a trapezoidal top block is arranged in the middle of the two trapezoidal sliding blocks, four corners of the top end of the trapezoidal top block are rotatably connected with screw rods, the left end and the right end of the trapezoidal top block are respectively contacted with one end, opposite to the two trapezoidal sliding blocks, of the two trapezoidal sliding blocks, slide rods are arranged on the upper side and the lower side of one end, far away from the trapezoidal; the mine data acquisition device is simple in structure, convenient to install, high in installation stability, convenient to replace the position of the mine data acquisition device, capable of guaranteeing the integrity of the mine data acquisition device, convenient to detect various data of a mine and capable of guaranteeing the accuracy of the detected data.
Description
Technical Field
The invention particularly relates to the technical field of mine geological environment early warning, and particularly relates to a mine geological environment early warning device.
Background
The dynamic change of the mine geological environment is mastered, the development trend of the mine environment is predicted, and basic data and basis are provided for reasonably developing mineral resources, protecting the mine geological environment, carrying out comprehensive treatment of the mine environment, recovering and rebuilding the mine ecological environment and implementing supervision and management of the mine geological environment. Typical monitoring indicators are: monitoring land encroachment, land destruction and land reclamation; monitoring solid waste and comprehensive utilization thereof; monitoring a tailing pond; monitoring the ground subsidence (collapse) of the goaf; monitoring geological disasters such as mountain cracking, landslide, collapse and debris flow; monitoring water loss and soil erosion and land desertification; monitoring the pollution of the surface water body of the mining area; monitoring soil pollution; monitoring ground cracks; monitoring the discharge of waste water and waste liquid; monitoring underground water; rainfall monitoring, etc.
Common mine geological environment early warning device sets up fixes it in the ground of concrete, can't remove or change the position pouring fixed early warning device, and mining area production often has the great vibrations of production such as blasting, causes the damage of internal plant easily when early warning device receives violent vibration, causes great influence to the normal use of device.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a mine geological environment early warning device.
In order to achieve the purpose, the invention adopts the following technical scheme:
a mine geological environment early warning device comprises a foundation, a fixed seat, a fixed plate, a supporting column, a rain-proof cover and an early warning box, wherein a trapezoidal groove is arranged in the middle of the foundation, a dead slot is formed in the fixed seat, two trapezoidal sliding blocks are symmetrically arranged on the left side and the right side in the dead slot and are in sliding fit with the dead slot, a trapezoidal top block is arranged in the middle of the two trapezoidal sliding blocks, screw rods are rotatably connected to the four corners of the top end of the trapezoidal top block, the left end and the right end of the trapezoidal top block are respectively in contact with the ends opposite to the two trapezoidal sliding blocks, sliding rods are arranged on the upper side and the lower side of the two trapezoidal sliding blocks far away from one end of the trapezoidal top block, the sliding rods penetrate through the fixed seat and extend to the outer side of the fixed seat, trapezoidal clamping blocks are fixedly connected to the sliding rod and are in sliding connection with the fixed seat, one ends of the trapezoidal clamping blocks far away, the left side and the right side of the bottom end of the fixing seat are fixedly connected with supporting legs, the bottom end of the fixing seat is fixedly connected with an earthquake detecting instrument, the bottom end of the fixing plate is fixedly connected with the top end of the fixing seat, the fixing plate is fixedly connected with a foundation through screws, the screw rod is in threaded connection with the fixing seat and the fixing plate, the top end of the screw rod is fixedly connected with a rotating handle, the bottom end of the supporting column is fixedly connected with the top end of the fixing plate, the bottom end of the rain cover is fixedly connected with the top end of the supporting column, the top end of the rain cover is provided with a lightning rod, the side wall of the top end of the rain cover is fixedly connected with a photovoltaic plate, the rain cover is arranged to be a conical structure, the rear end of the early warning box is fixedly connected with the front end of the supporting column, the early warning box is arranged below the, the right side of chamber door is provided with the safety lock that is used for locking the chamber door, the display screen is installed in the front end embedding of chamber door, the front end of chamber door is at the transparent explosion-proof glass of front side fixedly connected with of display screen, the left end and the right-hand member of pillar all are provided with the connecting rod in the below of rain-proof cover, the one end that the pillar was kept away from to the connecting rod is at the outside fixedly connected with rainfall graduated flask of rain-proof cover, the rear end of pillar is provided with the detection case at the rear of early warning case, be provided with air quality detector on the detection case, air.
Furthermore, the bottom of the rainfall measuring cylinder is connected with a drain pipe, an electromagnetic valve is arranged on the drain pipe, and a liquid level sensor is fixedly connected to the top side of the interior of the rainfall measuring cylinder.
Furthermore, the outside of slide bar is provided with first compression spring in the inside of dead slot, and first compression spring is close to the one end of trapezoidal slider and the lateral wall contact of trapezoidal slider, and the one end that trapezoidal slider was kept away from to first compression spring contacts with the inside wall of dead slot.
Furthermore, four second compression springs are uniformly arranged at the top end of the trapezoidal sliding block, and the top ends of the four second compression springs are in contact with the top end of the empty groove.
Furthermore, rib plates are fixedly connected to the bottom of the front end, the bottom of the rear end, the bottom of the left end and the bottom of the right end of the strut, and the bottom ends of the rib plates are fixedly connected with the top end of the fixing plate.
Furthermore, the bottom fixedly connected with of fixed plate is sealed to fill up, and the bottom that fills up contacts with the top of ground.
Furthermore, the bottom end of the connecting rod is provided with a lighting lamp.
Further, the early warning device body is electrically connected with the air quality detector, the air speed sensor, the temperature sensor, the liquid level sensor and the earthquake detector.
The invention has the beneficial effects that: the trapezoidal sliding block can move towards two sides when being extruded by the rotating knob, the trapezoidal sliding block can move towards two sides when being extruded, the trapezoidal sliding block can move to push the trapezoidal clamping block to move towards two sides through the sliding rod and can be clamped with the trapezoidal groove, so that the fixed seat is fixedly connected with a foundation, the fixed seat can be prevented from sliding out in the trapezoidal groove through the trapezoidal clamping block and the trapezoidal groove, the fixing stability of the device is improved, meanwhile, the device can be conveniently taken out from the trapezoidal groove to replace the position, the integral integrity of the device is ensured, the buffer plate is arranged on the side surface of the trapezoidal clamping plate, the device is protected by buffering, the sealing gasket is arranged at the bottom end of the fixed plate, rainwater is effectively prevented from entering the trapezoidal groove, the service life of parts in the trapezoidal groove is prolonged, the rain cover is provided with a conical structure, and the sun can conveniently irradiate the photovoltaic plates arranged on the rain, guarantee that it can normal electricity generation, guarantee that the device has the required electric energy of guaranteeing its equipment normal work, can be real-timely carry out the early warning to the mine geological environment and survey.
Drawings
Fig. 1 is a schematic structural diagram of a mine geological environment early warning device provided by the invention;
FIG. 2 is a schematic cross-sectional structure diagram of a rainfall measuring cylinder of the mine geological environment early warning device provided by the invention;
FIG. 3 is a schematic top view of a trapezoidal top block of the mine geological environment early warning device provided by the invention;
FIG. 4 is a left side view structural diagram of the connection of a detection box, a pillar and an early warning box of the mine geological environment early warning device provided by the invention;
fig. 5 is a schematic rear view structural diagram of an early warning box of the mine geological environment early warning device provided by the invention.
In the figure: 1. a foundation; 2. a fixed seat; 3. a fixing plate; 4. a pillar; 5. a rain cover; 6. an early warning box; 7. a trapezoidal groove; 8. an empty groove; 9. a trapezoidal slider; 10. a trapezoidal top block; 11. a screw; 12. a slide bar; 13. a trapezoidal fixture block; 14. a buffer plate; 15. a support leg; 16. a seismic detector; 17. a screw; 18. turning a handle; 19. a lightning rod; 20. a photovoltaic panel; 21. a box door; 22. a safety lock; 23. a display screen; 24. transparent explosion-proof glass; 25. a connecting rod; 26. a rainfall measuring cylinder; 27. a detection box; 28. an air quality detector; 29. a wind speed sensor; 30. a temperature sensor; 31. a drain pipe; 32. an electromagnetic valve; 33. a liquid level sensor; 34. a first compression spring; 35. a second compression spring; 36. a rib plate; 37. a gasket; 38. an illuminating lamp.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
Referring to fig. 1-5, a mine geological environment early warning device comprises a foundation 1, a fixed seat 2, a fixed plate 3, a supporting column 4, a rain cover 5 and an early warning box 6, wherein a trapezoidal groove 7 is arranged in the middle of the foundation 1, a dead slot 8 is arranged in the fixed seat 2, two trapezoidal sliding blocks 9 are symmetrically arranged on the left side and the right side in the dead slot 8, the two trapezoidal sliding blocks 9 are in sliding fit with the dead slot 8, a trapezoidal top block 10 is arranged in the middle of the two trapezoidal sliding blocks 9, four corners of the top end of the trapezoidal top block 10 are rotatably connected with screw rods 11, the left end and the right end of the trapezoidal top block 10 are respectively contacted with one ends of the two trapezoidal sliding blocks 9 opposite to each other, slide rods 12 are arranged on the upper side and the lower side of one end of the two trapezoidal sliding blocks 9 far away from the trapezoidal top block 10, and a trapezoidal clamping block 13, the stability of the device fixation is improved through the action of the trapezoid clamping block 13 and the trapezoid groove 7, the position of the trapezoid clamping block 13 is adjusted through the sliding of the trapezoid sliding block 9 in the empty groove 8, the device is convenient to disassemble and replace, the integrity of the whole body is ensured, the trapezoid sliding rod 12 is in sliding connection with the fixed seat 2, one end of the trapezoid clamping block 13 far away from the fixed seat 2 is fixedly connected with the buffer plate 14, one ends of the two buffer plates 14 far away from the trapezoid clamping block 13 are respectively contacted with the left side wall and the right side wall of the trapezoid groove 7, the left side and the right side of the bottom end of the fixed seat 2 are fixedly connected with the supporting legs 15, the bottom end of the fixed seat 2 is fixedly connected with the earthquake detector 16, the bottom end of the fixed plate 3 is fixedly connected with the top end of the fixed seat 2, the fixed plate 3 is fixedly connected with the foundation 1 through, the top end of the screw rod 11 is fixedly connected with a rotating handle 18, the bottom end of the supporting column 4 is fixedly connected with the top end of the fixing plate 3, the bottom end of the rain cover 5 is fixedly connected with the top end of the supporting column 4 to play a role of keeping off rain and prevent rainwater from entering the early warning box 6 to cause internal equipment damage, the top end of the rain cover 5 is provided with a lightning rod 19, the device can be prevented from being struck by lightning in an open mine area and is protected, the photovoltaic plate 20 is fixedly connected to the side wall of the top end of the rain cover 5, the rain cover 5 is of a conical structure, so that sunlight can irradiate the photovoltaic plate 20 from various angles, the sufficient power consumption of the device is ensured, the rear end of the early warning box 6 is fixedly connected with the front end of the supporting column 4, the early warning box 6 is arranged below the rain cover 5, a storage battery and an early warning device body are arranged inside the early warning box 6, and the storage battery is, the electric energy converted by the photovoltaic panel 20 is stored by a storage battery and is used by electric equipment of the device, the front end of the early warning box 6 is hinged with a box door 21, the equipment in the early warning box 6 can be detected and maintained conveniently by opening the box door 21, the right side of the box door 21 is provided with a safety lock 22 for locking the box door 21 to ensure the sealing property and the safety of the box door 21, the front end of the box door 21 is embedded with a display screen 23, the detection result of the detection device is displayed by the display screen 23 to facilitate observation of workers, the front end of the box door 21 is fixedly connected with a transparent explosion-proof glass 24 at the front side of the display screen 23 to prevent stones scraped in strong wind from impacting the display screen 23 and protect the display screen 23, the left end and the right end of the support 4 are both provided with connecting rods 25 below the rain shield 5, one end of the connecting rod 25 far away from the support 4 is fixedly connected with a rain measuring cylinder 26 at the outer side of the, be convenient for detect rainfall, the rear end of pillar 4 is provided with detection case 27 at the rear of early warning case 6, is provided with air quality detector 28, air velocity transducer 29 and temperature sensor 30 on detection case 27, is convenient for detect the quality, wind speed and the temperature of the air in mine to transmit the result of detecting for the early warning device body, and show the result of detecting through display screen 23.
It should be further noted that the bottom end of the rain measuring cylinder 26 is connected with a drain pipe 31, the drain pipe 31 is provided with an electromagnetic valve 32, the top side inside the rain measuring cylinder 26 is fixedly connected with a liquid level sensor 33, the height of rainwater received by the rain measuring cylinder 26 is measured by the liquid level sensor 33, the measured data is transmitted to the early warning device body, the measured data is displayed by the display screen 23, so that the rainwater in the rain measuring cylinder 26 can be conveniently discharged from the drain pipe 31 through the electromagnetic valve 32, so that the next rainfall can be conveniently monitored, the outer side of the slide bar 12 is provided with a first compression spring 34 inside the empty slot 8, one end of the first compression spring 34 close to the trapezoidal slider 9 is in contact with the side wall of the trapezoidal slider 9, one end of the first compression spring 34 far from the trapezoidal slider 9 is in contact with the inner side wall of the empty slot 8, when the screw rod 11 is rotated to enable the trapezoidal top block 10 to move upwards, the trapezoidal clamping block 13 and the trapezoidal sliding block 9 move towards the middle under the action of the first spring, so that the device can be conveniently taken out from the trapezoidal groove 7 and replaced, the top end of the trapezoidal sliding block 9 is uniformly provided with four second compression springs 35, the top ends of the four second compression springs 35 are in contact with the top end of the empty groove 8 to play a role of buffering and supporting, the acting force of the screw rod 11 on the trapezoidal top block 10 is reduced, the service life of the screw rod 11 is prolonged, rib plates 36 are fixedly connected to the bottom of the front end, the bottom of the rear end, the bottom of the left end and the bottom of the right end of the pillar 4, the bottom ends of the rib plates 36 are fixedly connected with the top end of the fixed plate 3 to improve the stability of the pillar 4 connected with the fixed plate 3, the bottom end of the fixed plate 3 is fixedly, prevent that the rainwater from getting into dovetail groove 7's inside, play sealed protection's effect to the part in dovetail groove 7, the bottom of connecting rod 25 is provided with light 38, and the staff of being convenient for looks for the position of device in the dark place of light, the staff of being convenient for simultaneously observe the data of the various detections of the demonstration of display screen 23, the early warning device body and air quality detector 28, air velocity transducer 29, temperature sensor 30, level sensor 33 and seismic detector 16 electric connection detect the mine geological environment through air quality detector 28, air velocity transducer 29, temperature sensor 30, level sensor 33 and seismic detector 16 to give data transfer and carry out analysis processes for the early warning device body, and show each item data that detect through display screen 23, be convenient for the staff to carry out record analysis.
The working principle of the embodiment is as follows: when the device is used, firstly, the foundation 1 with the trapezoidal groove 7 reserved is poured by concrete at a proper position, the fixing seat 2 of the device is placed in the trapezoidal groove 7 after the foundation 1 is poured, then the screw rod 11 is rotated clockwise through the knob, the screw rod 11 pushes the trapezoidal top block 10 to move downwards, the trapezoidal sliding block 9 slides towards two sides in the empty groove 8, the trapezoidal clamping block 13 and the trapezoidal groove 7 are clamped to fix the device, then the fixing plate 3 is fixedly connected with the foundation 1 through the screw 17, then the mine geological environment is detected through the air quality detector 28, the wind speed sensor 29, the temperature sensor 30, the liquid level sensor 33 and the earthquake detector 16, the data are transmitted to the early warning device body to be analyzed, and the detected data are displayed through the display screen 23, so that a worker can conveniently record and analyze.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The utility model provides a mine geological environment early warning device which characterized in that: including ground (1), fixing base (2), fixed plate (3), pillar (4), rain-proof cover (5) and early warning case (6), the centre of ground (1) is provided with trapezoidal groove (7), the inside of fixing base (2) is provided with dead slot (8), left side and right side symmetry in dead slot (8) are provided with two trapezoidal slider (9), two trapezoidal slider (9) all with dead slot (8) sliding fit, the centre of two trapezoidal slider (9) is provided with trapezoidal kicking block (10), the position in the four corners on the top of trapezoidal kicking block (10) all rotates and is connected with screw rod (11), the left end and the right-hand member of trapezoidal kicking block (10) contact with the one end that two trapezoidal slider (9) are relative respectively, the upside and the downside that trapezoidal kicking block (10) one end was kept away from to two trapezoidal slider (9) all are provided with slide bar (12), slide bar (12) run through fixing base (2) and extend to the one end fixedly connected with trapezoidal fixture block (13) in the fixing ) The sliding rod (12) is connected with the fixed seat (2) in a sliding manner, one end of the trapezoidal clamping block (13) far away from the fixed seat (2) is fixedly connected with a buffer plate (14), one ends of the two buffer plates (14) far away from the trapezoidal clamping block (13) are respectively contacted with the left side wall and the right side wall of the trapezoidal groove (7), the left side and the right side of the bottom end of the fixed seat (2) are fixedly connected with supporting legs (15), the bottom end of the fixed seat (2) is fixedly connected with a seismic detector (16), the bottom end of the fixed plate (3) is fixedly connected with the top end of the fixed seat (2), the fixed plate (3) is fixedly connected with the foundation (1) through screws (17), the screw rod (11) is in threaded connection with the fixed seat (2) and the fixed plate (3), the top end of the screw rod (11) is fixedly connected with a rotating handle (18), and, the bottom end of the rain cover (5) is fixedly connected with the top end of the supporting column (4), the top end of the rain cover (5) is provided with a lightning rod (19), the side wall of the top end of the rain cover (5) is fixedly connected with a photovoltaic panel (20), the rain cover (5) is set to be of a conical structure, the rear end of the early warning box (6) is fixedly connected with the front end of the supporting column (4), the early warning box (6) is arranged below the rain cover (5), a storage battery and an early warning device body are arranged inside the early warning box (6), the storage battery is electrically connected with the photovoltaic panel (20) and the early warning device body, the front end of the early warning box (6) is hinged with a box door (21), the right side of the box door (21) is provided with a safety lock (22) for locking the box door (21), the display screen (23) is embedded into the front end of the box door (21), and the front end of the box door (21) is fixedly connected with, the left end and the right end of the strut (4) are provided with connecting rods (25) below the rain cover (5), one end, far away from the strut (4), of each connecting rod (25) is fixedly connected with a rainfall measuring cylinder (26) on the outer side of the rain cover (5), the rear end of the strut (4) is provided with a detection box (27) behind the early warning box (6), and the detection box (27) is provided with an air quality detector (28), an air speed sensor (29) and a temperature sensor (30).
2. The mine geological environment early warning device as recited in claim 1, characterized in that: the bottom end of the rainfall measuring cylinder (26) is connected with a drain pipe (31), an electromagnetic valve (32) is arranged on the drain pipe (31), and a liquid level sensor (33) is fixedly connected to the top side of the interior of the rainfall measuring cylinder (26).
3. The mine geological environment early warning device as recited in claim 2, characterized in that: the outer side of the sliding rod (12) is provided with a first compression spring (34) in the empty groove (8), one end, close to the trapezoidal sliding block (9), of the first compression spring (34) is in contact with the side wall of the trapezoidal sliding block (9), and one end, far away from the trapezoidal sliding block (9), of the first compression spring (34) is in contact with the inner side wall of the empty groove (8).
4. The mine geological environment early warning device as recited in claim 3, characterized in that: the top end of the trapezoidal sliding block (9) is uniformly provided with four second compression springs (35), and the top ends of the four second compression springs (35) are in contact with the top end of the empty groove (8).
5. The mine geological environment early warning device as recited in claim 4, characterized in that: the front end bottom, the rear end bottom, the left end bottom and the right end bottom of the pillar (4) are fixedly connected with rib plates (36), and the bottom ends of the rib plates (36) are fixedly connected with the top end of the fixing plate (3).
6. The mine geological environment early warning device as recited in claim 5, characterized in that: the bottom fixedly connected with of fixed plate (3) seals up (37), and the bottom that seals up (37) contacts with the top of ground (1).
7. The mine geological environment early warning device as recited in claim 6, characterized in that: the bottom end of the connecting rod (25) is provided with a lighting lamp (38).
8. The mine geological environment early warning device as recited in claim 7, characterized in that: the early warning device body is electrically connected with the air quality detector (28), the air speed sensor (29), the temperature sensor (30), the liquid level sensor (33) and the earthquake detector (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011054804.1A CN112150770A (en) | 2020-09-28 | 2020-09-28 | Mine geological environment early warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011054804.1A CN112150770A (en) | 2020-09-28 | 2020-09-28 | Mine geological environment early warning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112150770A true CN112150770A (en) | 2020-12-29 |
Family
ID=73894329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011054804.1A Withdrawn CN112150770A (en) | 2020-09-28 | 2020-09-28 | Mine geological environment early warning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112150770A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586918A (en) * | 2021-09-27 | 2021-11-02 | 南通市德信致远环境科技有限公司 | Wall-mounted ambient air monitoring device |
| CN116434484A (en) * | 2023-06-13 | 2023-07-14 | 山东中呈防雷科技有限公司 | Thunder and lightning early warning device |
-
2020
- 2020-09-28 CN CN202011054804.1A patent/CN112150770A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586918A (en) * | 2021-09-27 | 2021-11-02 | 南通市德信致远环境科技有限公司 | Wall-mounted ambient air monitoring device |
| CN116434484A (en) * | 2023-06-13 | 2023-07-14 | 山东中呈防雷科技有限公司 | Thunder and lightning early warning device |
| CN116434484B (en) * | 2023-06-13 | 2023-08-25 | 山东中呈防雷科技有限公司 | Thunder and lightning early warning device |
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Application publication date: 20201229 |