Early warning and real-time monitoring equipment for hidden danger of roof fall of working face

Abstract

The utility model relates to the technical field of coal mine excavation, in particular to working face roof fall hidden danger early warning real-time monitoring equipment which comprises a bottom plate, the bottom end of the bottom plate is fixedly connected with a fixing block, the top end of the bottom plate is provided with an electric push rod, one end of the electric push rod is fixedly connected with the top end of the bottom plate, and the bottom plate is provided with a plurality of round through holes. An output shaft of the electric push rod is in sliding connection with the bottom plate through a circular through hole formed in the top end of the bottom plate, the two sides of the bottom plate are fixedly connected with connecting pieces, and the top end of the bottom plate is fixedly connected with a hydraulic rod. Therefore, when the sensor main body monitors the pressure change of the top wall of the roadway in real time, the area where roof fall possibly occurs can be protected by opening the top plate, workers cannot be injured by falling stones when passing by, and the possibility of casualties is reduced as much as possible.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine excavation, in particular to a real-time monitoring device for early warning of roof fall hazards on a working face. Background Art

[0002] The real-time monitoring equipment for early warning of roof fall hazards on the working face is an important technical equipment in coal mine safety production. Its main function is to monitor and analyze the roof status of the coal mine working face in real time, predict and warn of possible roof fall accidents, thereby ensuring the safety of miners' lives and safe production of coal mines;

[0003] Nowadays, most of the measures taken to deal with the hidden dangers of roof collapse in the tunnel working face are to set up detection equipment to detect various parameters of the working face in real time, and then summarize and organize these parameters in real time, and obtain the area and range where roof collapse may occur through data analysis;

[0004] When using existing technologies, it usually takes a certain amount of time to collect and organize relevant data and information, and then summarize and collect the information, and finally calculate the possible areas. This process is not only time-consuming and labor-intensive, but in most cases it is also unable to fix the tunnel and prevent falling rocks from falling and injuring workers, causing unnecessary casualties and losses.

[0005] In order to solve the above problems, the present application proposes a real-time monitoring device for warning of potential roof fall hazards on a working face. Utility Model Content

[0006] To solve the problems raised in the above background technology. The utility model provides a real-time monitoring device for warning of hidden dangers of roof fall on the working face, which can intercept and protect the rolling stones falling from the top of the tunnel by setting the top plate and hydraulic rod, and can also detect gas from the cracks at the top of the tunnel to avoid gas leakage and cause loss of personnel and property.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a real-time monitoring device for warning of hidden dangers of roof fall on a working face, comprising a base plate, a fixed block is fixedly connected to the bottom end of the base plate, an electric push rod is provided at the top of the base plate, one end of the electric push rod is fixedly connected to the top of the base plate, a plurality of circular through holes are provided on the base plate, the output shaft of the electric push rod is slidably connected to the base plate via the circular through holes provided at the top of the base plate, connecting pieces are fixedly connected on both sides of the base plate, a hydraulic rod is fixedly connected to the top of the base plate, and the top end of the output shaft of the hydraulic rod is fixedly connected to the top plate.

[0008] As a preferred real-time monitoring device for warning of hidden dangers of roof fall on a working face of the utility model, the number of the electric push rods is four, one end of the output shaft of the electric push rod is fixedly connected to a roller, and the connecting piece is spirally connected to a fixing bolt. By providing the roller, the user can move the device to a specified position with less effort when pulling the device.

[0009] As a preferred real-time monitoring device for warning of hidden dangers of roof fall on a working face of the utility model, a movable groove is opened on the top plate, a sensor body is arranged on the inner side of the movable groove, and a sliding part is fixedly connected to the bottom end of the top plate. By setting the movable groove, it is convenient to make the contact end of the sensor body contact with the top wall of the tunnel through the movable groove, so as to facilitate real-time monitoring of changes in pressure on the top wall of the tunnel.

[0010] As a preferred real-time monitoring device for warning of hidden dangers of roof fall on a working face of the utility model, the sliding member is slidably connected to a connecting plate, and the bottom end of the connecting plate is fixedly connected to a protective shell, and the protective shell is located directly below the movable groove. By setting the connecting plate, the protective shell fixedly connected to the connecting plate can be installed below the movable groove through the sliding connection between the connecting plate and the sliding member.

[0011] As a preferred real-time monitoring device for warning of hidden dangers of roof fall on a working face of the utility model, the bottom end of the inner side of the protective shell is fixedly connected to the bottom end of the sensor body, a buzzer is fixedly connected to one side of the surface of the protective shell, and a controller is fixedly connected to the other side of the surface of the protective shell, the sensor body is electrically connected to the controller, and the controller is electrically connected to the buzzer. The controller is set to receive pressure change data detected by the sensor body, and the buzzer set on one side of the protective shell is activated according to the detected data, so as to warn others to evacuate as soon as possible.

[0012] As a preferred real-time monitoring device for warning of hidden dangers of roof fall on a working face of the utility model, a first air hole is opened on the top plate, and a gas detector is fixedly connected to the bottom end of the first air hole. The gas detector is electrically connected to the controller. By setting up the gas detector, the gas transmitted from the cracks that may appear on the top wall of the tunnel is detected to prevent the gas in the rock stratum from leaking as the stone wall is broken, which poses a threat to the personal safety of workers working in the tunnel.

[0013] As a preferred embodiment of the real-time monitoring device for early warning of roof fall hazards on a working face of the utility model, a second air vent is provided on the top plate, an air pump is fixedly connected to the bottom end of the second air vent, an air delivery pipe is provided at the air outlet of the air pump, the other end of the air delivery pipe is fixedly connected to a gas storage tank, the top end of the gas storage tank is fixedly connected to the bottom end of the top plate, the air pump is electrically connected to a controller, the gas transmitted from the top wall of the tunnel is collected by the air pump, and the gas is collected by the air pump to reduce the gas concentration in the air, and then a buzzer alarm is used to reduce the risk of injury to personnel as much as possible;

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The real-time monitoring equipment for early warning of hidden dangers of roof fall on the working face designed by the utility model combines the hydraulic rod, the top plate, the sensor body and other components through design coordination. In this way, while the sensor body can monitor the pressure changes of the top wall of the tunnel in real time, it can also protect the area where roof fall may occur by opening the top plate, so that workers will not be injured by falling stones when passing by, reducing the possibility of casualties;

[0016] 2. The real-time monitoring equipment for warning of hidden dangers of roof fall on the working face designed by the utility model combines gas detectors, air pumps, gas storage tanks and other components through design coordination. In this way, cracks appearing on the top wall of the tunnel can be monitored, and the composition of the gas in the cracks can be detected to avoid gas leakage in the rock formation. When gas leaks, the gas concentration in the air can be reduced as much as possible through the air pump, and a buzzer warning can be used to reduce the possibility of casualties. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the explosion structure of the bottom plate of the utility model;

[0020] Figure 3 This is a schematic diagram of the explosion structure of the top plate of the utility model;

[0021] Figure 4 The figure is a schematic diagram of the explosion structure of the protective shell of the utility model.

[0022] In the figure:

[0023] 1. Bottom plate; 2. Connector; 3. Fixing bolt; 4. Top plate; 5. Movable groove; 6. Sensor body; 7. First air vent; 8. Second air vent; 9. Roller; 10. Fixing block; 11. Hydraulic rod; 12. Air pump; 13. Air pipe; 14. Gas storage tank; 15. Gas detector; 16. Buzzer; 17. Protective shell; 18. Connecting plate; 19. Sliding part; 20. Electric push rod; 21. Controller. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1

[0026] like Figure 1-Figure 4 As shown;

[0027] A real-time monitoring device for warning of hidden dangers of roof fall on a working face comprises a bottom plate.

[0028] When using existing technologies, it usually takes a certain amount of time to collect and organize relevant data and information. After the information is summarized and collected, the possible areas are finally calculated. As a result, the device cannot issue an alarm in real time in most cases. Most of the existing alarm devices cannot fix the tunnel to prevent falling rocks from falling and injuring workers, causing unnecessary casualties and losses. Combined with actual use, this problem is obviously a real and difficult problem to solve. In view of this, in order to solve this technical problem, a roof and gas detector are added to this application document.

[0029] According to the above content, in order to be able to issue an alarm in real time and intercept falling rolling stones, a real-time monitoring device for warning of hidden dangers of roof collapse on the working face is also included, including a base plate 1, a fixed block 10 is welded to the bottom end of the base plate 1, an electric push rod 20 is arranged at the top of the base plate 1, one end of the electric push rod 20 is welded to the top of the base plate 1, a plurality of circular through holes are opened on the base plate 1, the output shaft of the electric push rod 20 slides with the base plate 1 through the circular through holes opened at the top of the base plate 1, a connecting part 2 is welded to the base plate 1, a hydraulic rod 11 is fixed to the top of the base plate 1 by screws, and a top plate 4 is welded to the top of the output shaft of the hydraulic rod 11.

[0030] In this embodiment: the hydraulic rod 11, the top plate 4, the sensor body 6 and other components are combined by design, so that while the sensor body 6 can monitor the pressure changes on the top wall of the tunnel in real time, it can also protect the area where the roof may fall by opening the top plate 4, so that workers will not be hit by falling stones when passing by, reducing the possibility of casualties.

[0031] In an optional embodiment, the number of the electric push rods 20 is four, one end of the output shaft of the electric push rod 20 is fixedly connected to a roller 9, and the connecting member 2 is spirally connected to a fixing bolt 3.

[0032] In this embodiment, by providing the roller 9, the user can move the device to a designated position with less effort when pulling the device.

[0033] In an optional embodiment: a movable groove 5 is opened on the top plate 4 , a sensor body 6 is arranged inside the movable groove 5 , and a sliding member 19 is fixedly connected to the bottom end of the top plate 4 .

[0034] In this embodiment, the movable groove 5 is provided to facilitate the contact end of the sensor body 6 to contact the top wall of the tunnel through the movable groove 5, so as to facilitate real-time monitoring of changes in the pressure on the top wall of the tunnel.

[0035] According to the above content, the sliding member 19 is slidably connected to the connecting plate 18 , and the bottom end of the connecting plate 18 is fixedly connected to the protective shell 17 , and the protective shell 17 is located directly below the movable groove 5 .

[0036] In this embodiment, by providing the connecting plate 18 , the protective shell 17 fixedly connected to the connecting plate 18 can be installed below the movable groove 5 through the sliding connection between the connecting plate 18 and the sliding member 19 .

[0037] In an optional embodiment: the bottom end of the inner side of the protective shell 17 is fixedly connected to the bottom end of the sensor body 6, the buzzer 16 is fixedly connected to one side of the surface of the protective shell 17, the controller 21 is fixedly connected to one side of the surface of the protective shell 17, the sensor body 6 is electrically connected to the controller 21, and the controller 21 is electrically connected to the buzzer 16.

[0038] In this embodiment: a controller 21 is provided to receive the pressure change data detected by the sensor body 6, and a buzzer 16 provided on one side of the protective shell 17 is activated according to the detected data, so as to warn others to evacuate as soon as possible.

[0039] In an optional embodiment: a first air vent 7 is provided on the top plate 4 , a gas detector 15 is fixedly connected to the bottom end of the first air vent 7 , and the gas detector 15 is electrically connected to the controller 21 .

[0040] In this embodiment, a gas detector 15 is provided to detect the gas transmitted from the cracks that may appear on the top wall of the tunnel, so as to prevent the gas in the rock strata from leaking as the stone wall breaks and posing a threat to the personal safety of workers working in the tunnel.

[0041] In an optional embodiment: a second air vent 8 is provided on the top plate 4, the bottom end of the second air vent 8 is fixedly connected to an air pump 12, an air outlet of the air pump 12 is provided with an air pipe 13, the other end of the air pipe 13 is fixedly connected to an air storage tank 14, the top end of the air storage tank 14 is fixedly connected to the bottom end of the top plate 4, and the air pump 12 is electrically connected to the controller 21.

[0042] In this embodiment: an air pump 12 is provided to collect the gas transmitted from the top wall of the tunnel, and the gas is collected by the air pump 12 to reduce the gas concentration in the air, and then a buzzer 16 is used for warning to reduce the risk of personal injury as much as possible.

[0043] The working principle and use process of the utility model: when using the utility model, first start the electric push rod 20 set on the top of the base plate 1, and the output shaft is extended by the operation of the electric push rod 20, thereby driving the roller 9 fixed at one end of the output shaft of the electric push rod 20 to move downward and contact the ground, and thereby support the entire device. At this time, the device can be pulled, and the entire device is driven to move by the rotation of the roller 9. When the device moves to an area where roof falls may occur or roof falls often occur, multiple devices are spliced, and the multiple devices are connected and fixed by the connecting piece 2 and the fixing bolts 3 set on the connecting piece 2. At this time, the electric push rod 20 is started again to drive the output shaft of the electric push rod 20 to contract, so that the roller 9 is separated from the ground and no longer in contact with the ground The fixing block 10 arranged at the bottom end of the bottom plate 1 will make direct contact with the ground, thereby fixing the entire device to prevent the entire device from being deflected due to changes in the pressure on the top wall of the tunnel during use. At this time, the hydraulic rod 11 fixed on the top of the bottom plate 1 is started to move the hydraulic rod 11 upward and drive the top plate 4 fixed on one end of the output shaft of the hydraulic rod 11 to move upward at the same time. When the sensor body 6 arranged on the inner side of the movable groove 5 of the top plate 4 contacts the top wall of the tunnel, the hydraulic rod 11 stops operating. The sensor body 6 used in this practical application is a GD-307 type mining top plate 4 pressure sensor, and the sensor body 6 is fixed on the inner side of the protective shell 17, and the top of the protective shell 17 is fixedly connected with a connecting plate 18, and the connecting plate 18 is also slidably connected with the sliding member 19 fixed at the bottom of the movable groove 5 of the top plate 4, which facilitates the installation and disassembly of the entire protective shell 17, and a controller 21 is fixed on the outside of the protective shell 17, and the controller 21 is electrically connected to the sensor body 6. In this way, when the sensor detects the pressure change of the top wall of the tunnel, the controller 21 will receive the corresponding information in the first time, and promptly start the buzzer 16 fixed on the other side of the protective shell 17 and electrically connected to the controller 21, so as to sound an alarm, prompting the staff in the tunnel to evacuate in time to avoid casualties. At this time, the top plate 4 supported by the hydraulic rod 11 can intercept the falling gravel to a certain extent, so as to avoid the staff from evacuating and blocking the evacuation passage due to the accumulation of gravel or being hit by gravel. In the process of preventing unnecessary casualties, when cracks appear on the top wall of the tunnel, the top plate 4 is moved to the vicinity of the top wall of the tunnel so that the gas transmitted from the cracks can contact the gas detector 15 through the first air vent 7 opened on the top plate 4. The gas detector 15 detects the composition of the air in the cracks to prevent the gas in the rock formation from leaking into the tunnel along with the cracks, causing various unpredictable threats to the workers working in the tunnel. When gas does leak from the cracks, the controller 21 electrically connected to the gas detector 15 will immediately start the air pump 12 fixed at the bottom end of the second air vent 8 opened on the top plate 4, and the gas leaked from the cracks will be extracted by the operation of the air pump 12, and the extracted gas will be transported to the gas storage tank 14 through the gas pipe 13 for storage.This can reduce the gas content in the air to a certain extent, and promptly activate the buzzer 16 to warn the staff to evacuate in time to avoid unnecessary safety accidents.

[0044] The gas detector 15, the sensor body 6, the buzzer 16, the air pump 12 and other components in the utility model are all prior arts, and their working principles are consistent with similar products on the market, so no further description is given here.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A real-time monitoring device for early warning of roof fall hazards on a working face, comprising a bottom plate (1), characterized in that: The bottom end of the base plate (1) is fixedly connected to a fixed block (10), the top end of the base plate (1) is provided with an electric push rod (20), one end of the electric push rod (20) is fixedly connected to the top end of the base plate (1), a plurality of circular through holes are provided on the base plate (1), the output shaft of the electric push rod (20) is slidably connected to the base plate (1) through the circular through holes provided at the top end of the base plate (1), connecting pieces (2) are fixedly connected to both sides of the base plate (1), the top end of the base plate (1) is fixedly connected to a hydraulic rod (11), and the top end of the output shaft of the hydraulic rod (11) is fixedly connected to a top plate (4).

2. The real-time monitoring device for early warning of roof fall hazards on a working face according to claim 1, characterized in that: The number of the electric push rods (20) is four, one end of the output shaft of the electric push rod (20) is fixedly connected to a roller (9), and the connecting member (2) is spirally connected to a fixing bolt (3).

3. The real-time monitoring device for early warning of roof fall hazards on a working face according to claim 1, characterized in that: The top plate (4) is provided with a movable groove (5), a sensor body (6) is arranged inside the movable groove (5), and a sliding member (19) is fixedly connected to the bottom end of the top plate (4).

4. The real-time monitoring device for early warning of roof fall hazards on a working face according to claim 3 is characterized by: The sliding member (19) is slidably connected to a connecting plate (18), and the bottom end of the connecting plate (18) is fixedly connected to a protective shell (17), and the protective shell (17) is located directly below the movable groove (5).

5. The real-time monitoring device for early warning of roof fall hazards on a working face according to claim 4 is characterized by: The bottom end of the inner side of the protective shell (17) is fixedly connected to the bottom end of the sensor body (6); a buzzer (16) is fixedly connected to one side of the surface of the protective shell (17); a controller (21) is fixedly connected to the other side of the surface of the protective shell (17); the sensor body (6) is electrically connected to the controller (21); and the controller (21) is electrically connected to the buzzer (16).

6. The real-time monitoring device for early warning of roof fall hazards on a working face according to claim 1, characterized in that: The top plate (4) is provided with a first air vent (7), the bottom end of the first air vent (7) is fixedly connected to a gas detector (15), and the gas detector (15) is electrically connected to a controller (21).

7. The real-time monitoring device for early warning of roof fall hazards in a working face according to claim 1, characterized in that: The top plate (4) is provided with a second air vent (8), the bottom end of the second air vent (8) is fixedly connected to an air pump (12), the air outlet of the air pump (12) is provided with an air delivery pipe (13), the other end of the air delivery pipe (13) is fixedly connected to an air storage tank (14), the top end of the air storage tank (14) is fixedly connected to the bottom end of the top plate (4), and the air pump (12) is electrically connected to a controller (21).

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