Goaf monitoring device for gob-side roadway

By installing the main body of the monitoring device outside the goaf roadway and using guide cables for protection, the safety and accessibility issues of monitoring equipment in the goaf area were solved, achieving efficient and safe goaf monitoring and real-time data acquisition.

CN224214229UActive Publication Date: 2026-05-08GEOPHYSICAL & GEOCHEMICAL SURVEY INSTITUTE OF HUNAN PROVINCE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GEOPHYSICAL & GEOCHEMICAL SURVEY INSTITUTE OF HUNAN PROVINCE
Filing Date
2025-06-25
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

In existing technologies, goaf monitoring equipment requires frequent operation when installed in goaf areas, posing safety hazards and causing damage to connection lines, which also affects traffic.

Method used

The main body of the monitoring device is set outside the roadway, and the cable is guided and protected by the base station on the top of the roadway. The monitoring base station and sensor are connected by the power cable to achieve safe and reliable monitoring.

Benefits of technology

It enables efficient monitoring within the goaf area, ensuring ease of operation and safety, while protecting cables from obstructing passage. Sensors monitor temperature, humidity, and gas in real time, and indicator lights and alarms assist in rapid response.

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Abstract

The utility model discloses a goaf monitoring device for a gob-side roadway, which belongs to the technical field of geological engineering monitoring equipment and comprises a monitor main body, a monitoring base station and a station distribution base arranged at the top of the gob-side roadway. The monitoring base station is arranged on the side, close to the goaf, of the station distribution base. The monitoring base station is provided with a goaf monitoring probe towards the inside of the goaf. A power connection cable is arranged between the monitoring base station and the monitor main body, and a wiring trough for guiding and accommodating the power connection cable is formed in the station distribution base. According to the gob-side roadway gob-side roadway monitoring device, gob-side roadway gob-side roadway gob-side roadway gob-side roadway gob-side roadway gob-side roadway gob-side roadway gob-side roadway gob-side roadway gob
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Description

Technical Field

[0001] This utility model belongs to the technical field of geological engineering monitoring equipment, specifically a monitoring device for goaf areas in goaf tunnels. Background Technology

[0002] Goaf monitoring is a crucial aspect of underground mining operations, such as coal mining. During coal mining, the coal seam is removed, creating empty areas known as goafs. These areas pose numerous hidden dangers, including water accumulation, gas accumulation, roof collapse, and fire zones, and data on these issues is often lacking, seriously threatening safe production in the mine. Therefore, monitoring and early warning systems for goafs are essential for mines to take proactive measures and effectively prevent accidents by providing advance warnings of geological disasters or secondary emergencies.

[0003] Goaf roadways refer to the original mining roadways maintained along the edge of the goaf behind the coal face. Using specific techniques, the roadways from the previous section are re-supported and reserved for use in the next section. This is a method within pillarless mining technology. Goaf roadway retention maximizes resource recovery and avoids coal loss.

[0004] In the existing field of goaf monitoring technology, if all monitoring equipment is directly installed in the goaf, the monitoring personnel will inevitably have to perform multiple and frequent inspections. The goaf area is large and the situation is unclear, and safety accidents are likely to occur during the inspection process. Similarly, the numerous connection lines between monitoring equipment, if directly installed in the goaf or along the goaf roadway, can easily cause damage or affect the passage of personnel and other equipment. Utility Model Content

[0005] To address the above problems, this utility model provides a goaf monitoring device for use in goaf-side roadways. The monitoring device is deployed in an orderly manner along the goaf-side roadway, while the connecting cables are guided and protected, ensuring the safety and reliability of the entire monitoring operation.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A goaf monitoring device for goaf roadways includes a main body of the monitor, a monitoring base station, and a base station installed on the top of the goaf roadway. The monitoring base station is installed on the base station near the goaf area, and a goaf monitoring probe is installed on the monitoring base station into the goaf area. A power cable is installed between the monitoring base station and the main body of the monitor, and a wire groove for guiding and accommodating the power cable is provided on the base station.

[0008] As a further improvement to the above scheme, the station base is long and has multiple sections, and the monitoring base stations are multiple and evenly distributed on the station bases on the side of the goaf in the goaf roadway.

[0009] As a further improvement to the above solution, the main body of the monitor includes a goaf data monitoring box, a display, and a control panel; the goaf data monitoring box is connected to a monitoring base station, and the display and control panel are connected to the goaf data monitoring box.

[0010] As a further improvement to the above solution, the monitoring base station includes a mounting base connected to the deployment base, and the monitoring base station is equipped with a working indicator light and an alarm.

[0011] As a further improvement to the above solution, the goaf monitoring probe includes monitoring sensors that are connected to the monitoring base station for signal transmission. The monitoring sensors include a temperature sensor, a humidity sensor, and a gas sensor.

[0012] As a further improvement to the above solution, the monitoring sensor and the monitoring base station transmit signals via a signal transmission cable or a Bluetooth device.

[0013] As a further improvement to the above solution, the main body of the monitor is provided with a cable box, and the cable box is provided with a cable reel for storing the power cables.

[0014] As a further improvement to the above solution, the side of the station base is provided with a cable passage hole for passing through the power cable, and the top of the station base is provided with a fixing component for connecting to the top surface of the tunnel.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. Taking advantage of the fact that the roadway along the goaf is located at the edge of the goaf, the main part of the monitoring device is set up outside the safe goaf area. The monitoring base station that needs to receive signals and the sensors for real-time monitoring are deployed along the roadway into the depth of the goaf area. Finally, they are connected by power cables. This achieves efficient monitoring while ensuring the convenience and safety of the monitoring personnel.

[0017] 2. By using the cable trays set on the base of the station at the top of the tunnel, the power cables are stored and guided, which does not affect other work in the tunnel and also protects the cables; the cable box and cable reel can further store and protect the cables efficiently.

[0018] 3. The sensors can monitor the temperature, humidity, and concentration of specified gases such as methane or carbon dioxide inside the goaf in real time. Meanwhile, the indicator lights and alarms can help monitoring personnel react quickly and understand the current situation.

[0019] 4. The cable pass hole helps to quickly and reliably connect one end of the power cable to the monitoring base station. The fastener is a fastening anchor that is inserted into the top of the tunnel and fixed at the front end. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0021] Figure 2 This is a top view of the structure of this utility model.

[0022] Figure 3 This is a three-dimensional structural diagram of the monitoring base station and monitoring probe in this utility model.

[0023] Figure 4 This is a three-dimensional structural schematic diagram of the present invention from another perspective.

[0024] In the diagram: 1. Monitor body; 2. Monitoring base station; 3. Goaf monitoring probe; 4. Station base; 5. Goaf roadway; 11. Display; 12. Control panel; 13. Cable box; 14. Cable reel; 15. Power cable; 16. Goaf data monitoring box; 21. Mounting base; 22. Work indicator light; 23. Alarm; 31. Monitoring sensor; 32. Signal transmission cable; 41. Wire channel; 42. Cable hole; 43. Fixture. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution, the present invention will be described in detail below with reference to the embodiments. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0026] like Figures 1-4 As shown, the specific solution of this embodiment is as follows: a goaf monitoring device for goaf roadways includes a monitoring body 1, a monitoring base station 2, and a station base 4 set on the top of the goaf roadway 5; the monitoring base station 2 is set on the station base 4 near the goaf side, and the monitoring base station 2 is equipped with a goaf monitoring probe 3 extending into the goaf; a power cable 15 is provided between the monitoring base station 2 and the monitoring body 1, and a wire groove 41 for guiding and accommodating the power cable 15 is provided on the station base 4.

[0027] like Figures 1-4 As shown, in the preferred embodiment above, the base 4 is long and has multiple segments, and the monitoring base stations 2 are multiple and evenly distributed on the base 4 on the side of the goaf in the goaf roadway 5.

[0028] like Figures 1-4 As shown, in a preferred embodiment of the above, the main body of the monitor 1 includes a goaf data monitoring box 16, a display 11, and a control panel 12; the goaf data monitoring box 16 is connected to a monitoring base station 2, and the display 11 and the control panel 12 are connected to the goaf data monitoring box 16.

[0029] like Figures 1-4 As shown, in a preferred embodiment of the above, the monitoring base station 2 includes a mounting base 21 connected to the base station 4, and the monitoring base station 2 is equipped with a working indicator light 22 and an alarm 23.

[0030] like Figures 1-4 As shown, in a preferred embodiment of the above, the goaf monitoring probe 3 includes a monitoring sensor 31 that is connected to the monitoring base station 2 for signal transmission. The monitoring sensor 31 includes a temperature sensor, a humidity sensor, and a gas sensor.

[0031] like Figures 1-4 As shown, in a preferred embodiment of the above, the monitoring sensor 31 and the monitoring base station 2 transmit signals via a signal transmission cable 32 or a Bluetooth device.

[0032] like Figures 1-4 As shown, in a preferred embodiment of the above, the monitor body 1 is provided with a cable box 13, and the cable box 13 is provided with a cable reel 14 for storing the power cable 15.

[0033] like Figures 1-4 As shown, in a preferred embodiment, the side of the base 4 is provided with a cable hole 42 for passing through the power cable 15, and the top of the base 4 is provided with a fastener 43 for connecting to the top surface of the tunnel 5. The fastener 43 is a fastening anchor with its front end inserted into the top of the tunnel 5 and fixed.

[0034] The specific working principle of this utility model is as follows:

[0035] Taking advantage of the fact that the goaf-side roadway 5 is located at the edge of the goaf, the main body of the monitoring device is set outside the safe goaf area. The monitoring base station 2, which needs to receive signals, and the sensors for real-time monitoring are deployed along the roadway into the depth of the goaf area, and finally connected to each other by the power cable 15. The wire trough 41 set on the base 4 at the top of the goaf-side roadway 5 stores and guides the power cable 15, protecting the cable without affecting other work in the roadway. The cable box 13 and the cable reel 14 can further efficiently store and protect the cable. The sensors can monitor the temperature, humidity, and concentration of specified gases such as methane or carbon dioxide in the goaf in real time. At the same time, the setting of indicator lights and alarms can help the monitoring personnel to react quickly and understand the current situation. The cable hole 42 helps to quickly and reliably connect one end of the power cable 15 to the monitoring base station 2, and the fastener 43 is a fastening anchor that inserts the front end into the top of the goaf-side roadway 5 and fixes it.

[0036] It should be noted that, in this document, the terms "including," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Specific examples have been used in this document to illustrate the principles and implementation methods of the present invention. These examples are merely for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be pointed out that, due to the limitations of written expression and the objective existence of infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the present invention to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A goaf monitoring device for use in roadways with goaf access, characterized in that, It includes a monitor body (1), a monitoring base station (2), and a station base (4) set on the top of the goaf roadway (5); the monitoring base station (2) is set on the station base (4) on the side close to the goaf area, and the monitoring base station (2) is equipped with a goaf monitoring probe (3) in the goaf area; a power cable (15) is set between the monitoring base station (2) and the monitor body (1), and a wire groove (41) for guiding and accommodating the power cable (15) is set on the station base (4).

2. The goaf monitoring device for roadways along the goaf according to claim 1, characterized in that, The station base (4) is long and has multiple sections. The monitoring base stations (2) are multiple and evenly distributed on the station base (4) on the side of the goaf in the goaf roadway (5).

3. A goaf monitoring device for goaf roads according to claim 2, characterized in that, The main body (1) of the monitor includes a goaf data monitoring box (16), a display (11) and a control panel (12); the goaf data monitoring box (16) is connected to a monitoring base station (2), and the display (11) and the control panel (12) are connected to the goaf data monitoring box (16).

4. A goaf monitoring device for roadways along goaf roads according to claim 2, characterized in that, The monitoring base station (2) includes a mounting base (21) connected to the base station (4), and the monitoring base station (2) is equipped with a working indicator light (22) and an alarm (23).

5. A goaf monitoring device for goaf roads according to claim 2, characterized in that, The goaf monitoring probe (3) includes a monitoring sensor (31) that is connected to the monitoring base station (2) for signal transmission. The monitoring sensor (31) includes a temperature sensor, a humidity sensor and a gas sensor.

6. A goaf monitoring device for goaf roads according to claim 5, characterized in that, The monitoring sensor (31) and the monitoring base station (2) transmit signals via a signal transmission cable (32) or a Bluetooth device.

7. A goaf monitoring device for roadways along goaf roads according to claim 1, characterized in that, The main body (1) of the monitor is provided with a cable box (13), and the cable box (13) is provided with a reel (14) for storing the power cable (15).

8. A goaf monitoring device for goaf roads according to claim 1, characterized in that, The side of the base (4) of the station is provided with a wire hole (42) for passing through the power cable (15), and the top of the base (4) is provided with a fastener (43) for connecting to the top surface of the tunnel (5).