A coal mine safety monitoring device

Abstract

The utility model belongs to coal mine safety equipment technical field especially relates to a coal mine safety monitoring devices. The technology includes methane sensor body, the upper portion of methane sensor body is provided with fixed plate, and the top of methane sensor body is connected with fixed plate through connecting rod, and the upper portion of fixed plate is provided with several fixed blocks, and the adjacent fixed blocks are provided with the connecting assembly that connects them, and the fixed block is provided with the clamping assembly that makes it with fixed plate is clamped cooperation. The design makes the fixed block can pass through the protective net of roadway top and then connects, and is fixed with the protective net of roadway top through the clamping of fixed plate, and the installation of methane sensor body is completed, and the fixed plate and fixed block can prevent the connecting rod from swinging, avoid the swing of methane sensor body, and after the fixed block is split, the fixed block can be taken off from the protective net of roadway top, thereby also convenient for the disassembly of methane sensor body.

Description

Technical Field

[0001] This utility model belongs to the field of coal mine safety equipment technology, and in particular relates to a coal mine safety monitoring device. Background Technology

[0002] Due to the extreme production environment in coal mines, a comprehensive safety monitoring system is needed for real-time sensing and early warning to prevent accidents such as gas explosions and fires. This is also a prerequisite for legal coal mining. Coal seams contain large amounts of flammable gases such as methane. Once the concentration in the air reaches a certain level (5%-16%) and encounters a source of ignition, a violent explosion will occur, making it the "number one killer" in coal mines. Therefore, methane sensors are a crucial and indispensable core device in safety monitoring.

[0003] Currently, there are generally two ways to install methane sensors. One method involves installing hooks or rings on the top of the sensor and suspending it from the top of the tunnel. The tunnel top is usually equipped with a mesh-like protective net, and the sensor is suspended from the net. However, when the methane sensor is touched by personnel or equipment, the connection point of the steel wire rope via the rings or hooks is relatively smooth, causing the methane sensor to swing like a pendulum for a long time, resulting in unstable monitoring data and even damage to the equipment. The other method involves fixing the sensor with expansion bolts installed on the tunnel roof. Drilling is required when drilling, which is inconvenient. Each time the methane sensor needs to be moved according to the advancement of the mining face, it needs to be disassembled and the drilling process needs to be repeated, which is time-consuming, labor-intensive, and inconvenient to move. Utility Model Content

[0004] The purpose of this invention is to provide a coal mine safety monitoring device to solve the problems mentioned in the background art.

[0005] The coal mine safety monitoring device includes a methane sensor body. A fixing plate is horizontally arranged above the methane sensor body. The fixing plate is connected to the top of the methane sensor body through a connecting rod. Several fixing blocks are horizontally arranged above the fixing plate. A connecting component is provided between adjacent fixing blocks to connect them. A clamping component is provided on the fixing block to clamp it with the fixing plate.

[0006] Furthermore, the clamping assembly includes a first screw vertically disposed at the bottom of the fixing block, a first through hole for the first screw to pass through on the fixing plate, and a first nut that is threadedly engaged with the first screw.

[0007] Furthermore, the bottom of the fixing block is provided with a threaded groove that is threaded to engage with the first screw.

[0008] Furthermore, the fixing block consists of four blocks, and the overall structure is rectangular.

[0009] Furthermore, the connecting component includes a slider with a "T" shaped structure, the slider is horizontally arranged, the slider is fixed to the side wall of one of the fixed blocks, and the wider end of the slider is away from the fixed end, and the side wall of the other fixed block is provided with a groove for the slider to be inserted.

[0010] Furthermore, the methane sensor body and the connecting rod are detachably connected.

[0011] Furthermore, two parallel connecting blocks are vertically fixed to the top of the methane sensor body, and a fixing rod is horizontally arranged between the two connecting blocks. The fixing rod is a square rod, and the connecting rod is fixed to the fixing rod. The connecting block has a second through hole for the fixing rod to pass through. The end of the fixing rod is horizontally fixed with a second screw. The second screw is provided with a second nut that is threaded to it. One of the connecting blocks has a through groove for horizontally removing the fixing rod from the second through hole.

[0012] Furthermore, the length of the connecting rod is less than 300mm.

[0013] Compared with the prior art, the present invention has the following beneficial effects: This invention connects individual fixing blocks through the protective netting at the top of the tunnel, then clamps the fixing blocks and fixing plates against the protective netting, thus fixing the fixing plates and fixing blocks to the protective netting at the top of the tunnel and completing the installation of the methane sensor body. The fixing plates and fixing blocks can prevent the connecting rod from swinging, thereby preventing the methane sensor body from swinging. After the fixing blocks are disassembled, they can be removed from the protective netting at the top of the tunnel, which also facilitates the disassembly of the methane sensor body. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Enlarged structural diagram at point A; Figure 3 for Figure 1 Enlarged structural diagram at point B; Figure 4 for Figure 1 A top-view structural diagram; Figure 5 for Figure 1 A front view structural diagram; The components in the diagram are named as follows: 1. Methane sensor body; 2. Connecting block; 3. Fixing rod; 4. Connecting rod; 5. Fixing plate; 6. Fixing block; 7. Slider; 8. First screw; 9. First nut; 10. Second screw; 11. Second nut. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0016] This embodiment describes a coal mine safety monitoring device, such as... Figures 1 to 5 As shown, the device includes a methane sensor body 1, which is a methane sensor used in existing coal mines. A fixing plate 5 is horizontally arranged above the methane sensor body 1. The fixing plate 5 is connected to the top of the methane sensor body 1 through a connecting rod 4. Several fixing blocks 6 are horizontally arranged above the fixing plate 5. Each fixing block 6 is smaller than the protective netting at the top of the roadway. For example, if the mesh of the protective netting at the top of the roadway is rectangular, then the length and width of the fixing block 6 are smaller than the mesh of the protective netting. The fixing blocks 6 are divided into several pieces, and each fixing block 6 can pass through the protective netting at the top of the roadway so that the fixing block 6 is located above the protective netting.

[0017] There are 4 fixing blocks 6, and the whole is rectangular. The structure formed by the combination of 4 fixing blocks 6 is the same as the structure of fixing plate 5. The presence of 4 blocks allows the combined fixing blocks 6 to have a larger area, preventing them from falling from the protective netting at the top of the tunnel. Moreover, its structure is the same as that of fixing plate 5. After aligning fixing plate 5 and fixing blocks 6, it is easy to align the first through hole on fixing plate 5 with the first screw 8.

[0018] A T-shaped slider 7 is provided between each pair of adjacent fixed blocks 6. The slider 7 is horizontally positioned and fixed to the side wall of one of the fixed blocks 6, with the wider end of the slider 7 away from the fixed end. Figure 3 As shown, slider 7 is fixed to the left-side fixing block 6. Slider 7 is wider at its left end. The side wall of the other fixing block 6 has a groove for slider 7 to be inserted. The groove is also a "T" shaped structure. The "T" shaped fit between slider 7 and the groove prevents the two sliders 7 from separating to the sides. In some embodiments, they can also be connected by two screws. The diameter of the screws is smaller than the thickness of the fixing block 6. One end of the two screws is fixed by a connecting rod. The fixing block 6 has horizontal mounting holes for the screws to pass through. Each screw has a nut. The nuts and connecting rods prevent the fixing block 6 from detaching from the ends of the screws. The connecting rods connect and fix the two screws, thus connecting the four fixing blocks 6. This section constitutes a connecting assembly for connecting adjacent fixing blocks 6.

[0019] A first screw 8 is vertically installed at the bottom of each fixing block 6. A first through hole for the first screw 8 to pass through is provided on the fixing plate 5. A first nut 9 is threaded onto the first screw 8. Through the threaded engagement of the first nut 9 and the first screw 8, the fixing block 6 and the fixing plate 5 can be fitted together, clamping the protective netting at the top of the tunnel. Alternatively, in some embodiments, ropes can be used to fit the fixing plate 5 and fixing block 6 together. A ring is fixed at the bottom of the fixing block 6. Two through holes are provided on the fixing plate 5 for the two ends of the rope to pass through. The rope passes through the ring, then through the through holes, and the two ends of the rope are knotted at the bottom of the fixing plate 5, thus connecting the fixing plate 5 and the fixing block 6. Multiple ropes can be used. This section describes a clamping assembly that clamps the fixing block 6 and the fixing plate 5 together.

[0020] The bottom of the fixing block 6 is provided with a threaded groove that is threaded to the first screw 8, so that the first screw 8 and the fixing block 6 are detachably connected. If the mesh of the protective net at the top of the tunnel is relatively small, the first screw 8 can be removed and the position of the fixing block 6 can be adjusted so that the fixing block 6 passes through the protective net at the top of the tunnel. After the fixing block 6 passes through the protective net at the top of the tunnel, the fixing block 6 is then connected to the first screw 8.

[0021] Two parallel connecting blocks 2 are vertically fixed to the top of the methane sensor body 1. A fixing rod 3, which is square, is horizontally positioned between the two connecting blocks 2. A connecting rod 4 is fixed to the fixing rod 3. A second through hole, also square, is provided on the connecting block 2 for the fixing rod 3 to pass through, preventing the fixing rod 3 from rotating within the through hole. A second screw 10 is horizontally fixed to the end of each fixing rod 3. A second nut 11, threadedly engaged with the second screw 10, is provided on the second screw 10. The two second nuts 11 are respectively pressed against the outside of the connecting block 2, thereby fixing the fixing rod 3 between the two connecting blocks 2. One of the connecting blocks 2 has a through groove for horizontally removing the fixing rod 3 from the second through hole. Figure 1 As shown in the middle position, a through groove is provided on the rear side of the left connecting block 2. To disassemble the fixing rod 3, unscrew the second nut 11 on the right side, move the fixing rod 3 to the left, causing the second screw 10 on the right side to disengage from the right connecting block 2. Then, move the fixing rod 3 horizontally backward to remove it. The right connecting block 2 does not have a through groove, which prevents the fixing rod 3 from detaching from the rear side of the connecting block 2 when it is in a fixed state. This section describes a detachable connection between the methane sensor body 1 and the connecting rod 4.

[0022] The length of the connecting rod 4 is less than 300mm, so that the distance between the methane sensor body 1 and the top of the roadway is less than 300mm, and the installation of the methane sensor body 1 meets the installation requirements stipulated by the coal mine.

[0023] The working principle and technical effects of this embodiment: When installing the methane sensor body 1, first disassemble the fixing block 6 into a single piece. Then, pass the fixing block 6 through the protective netting at the top of the tunnel and connect the fixing blocks 6 via the slider 7. Next, align the first through hole on the fixing plate 5 with the first screw 8 and screw the first nut 9 into the bottom of the first screw 8, reducing the gap between the fixing plate 5 and the fixing block 6. This allows the fixing plate 5 and the fixing block 6 to clamp the protective netting at the top of the tunnel. The first screw 8, located in the hole of the protective netting at the top of the tunnel, allows for horizontal movement of the fixing plate 5 and the fixing block 6. The methane sensor body 1 is suspended by the connecting rod 4 and clamped and fixed by the fixing plate 5 and the fixing block 6, which can prevent the connecting rod 4 from swinging. The square structure of the fixing rod 3 prevents it from rotating in the second through hole on the connecting block 2, thus preventing the methane sensor body 1 from swinging. When the position of the methane sensor body 1 needs to be changed, the first nut 9 is turned down to release the fixing plate 5. Then the fixing block 6 is disassembled and passed through the protective net at the top of the tunnel to complete the disassembly, which also facilitates the reinstallation of the methane sensor body 1.

Claims

1. A coal mine safety monitoring device, comprising a methane sensor body (1), characterized in that: A fixing plate (5) is horizontally arranged above the methane sensor body (1). The fixing plate (5) is connected to the top of the methane sensor body (1) through a connecting rod (4). Several fixing blocks (6) are horizontally arranged above the fixing plate (5). A connecting component is provided between adjacent fixing blocks (6) to connect them. A clamping component is provided on the fixing block (6) to clamp it with the fixing plate (5).

2. The coal mine safety monitoring device according to claim 1, characterized in that: The clamping assembly includes a first screw (8) vertically disposed at the bottom of the fixing block (6), a first through hole for the first screw (8) to pass through on the fixing plate (5), and a first nut (9) threadedly engaged with the first screw (8).

3. The coal mine safety monitoring device according to claim 2, characterized in that: The bottom of the fixing block (6) is provided with a threaded groove that is threaded to the first screw (8).

4. The coal mine safety monitoring device according to claim 3, characterized in that: The fixing block (6) consists of 4 blocks and has an overall rectangular structure.

5. The coal mine safety monitoring device according to claim 4, characterized in that: The connecting component includes a slider (7) in a "T" shape. The slider (7) is horizontally arranged and fixed to the side wall of one of the fixing blocks (6). The wider end of the slider (7) is away from the fixed end. The side wall of the other fixing block (6) is provided with a groove for the slider (7) to be inserted.

6. The coal mine safety monitoring device according to claim 1 or 5, characterized in that: The methane sensor body (1) and the connecting rod (4) are detachably connected.

7. The coal mine safety monitoring device according to claim 6, characterized in that: The top of the methane sensor body (1) is vertically fixed with two parallel connecting blocks (2), and a fixing rod (3) is horizontally arranged between the two connecting blocks (2). The fixing rod (3) is a square rod, and the connecting rod (4) is fixed to the fixing rod (3). The connecting block (2) has a second through hole for the fixing rod (3) to pass through. The ends of the fixing rod (3) are all horizontally fixed with a second screw (10). The second screw (10) is provided with a second nut (11) that is threaded to it. One of the connecting blocks (2) has a through groove for horizontally removing the fixing rod (3) from the second through hole.

8. The coal mine safety monitoring device according to claim 7, characterized in that: The length of the connecting rod (4) is less than 300mm.

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