Gas detection device for coal mine

Abstract

The utility model relates to the technical field of gas detection devices, in particular to a gas detection device for a coal mine, which comprises a box body, a filter plate, a partition plate, an electric roller, a mounting part and a fixed plate, the filter plate is connected with the box body, the other end of the box body is provided with an air outlet, and the fixing plate is slidably connected with the surface of the box body; the mounting part is rotationally connected with the fixing plate and provided with a bolt, the bolt is in threaded fit connection with the fixing plate, the electric roller is rotationally connected with the mounting part, and bristles are arranged on the peripheral surface of the electric roller; the partition plate is connected with the inner wall of the box body and enables an S-shaped air inlet cavity to be formed in the box body, and the air inlet cavity is provided with a fan and a gas detection sensor. According to the utility model, the plurality of fans are started to suck external air into the box body, impurities in the air are blocked by the filter plate, and the gas passes through the plurality of gas detection sensors, so that the result is more accurate; the moving mechanism drives the electric roller to move so as to clean the filter plate, so that the filter plate cannot be covered by dust and the like in the air during use, and the passing ability of gas is ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of gas detection devices, specifically a gas detection device for coal mines. Background Technology

[0002] Methane gas is a colorless, odorless, and tasteless gas. When it reaches a certain concentration, it can cause asphyxiation due to lack of oxygen and can also cause combustion or explosion. Coal mine methane is a harmful gas mainly composed of coalbed methane. During coal mining, it is essential to monitor methane in designated mining areas in real time to prevent excessively high methane concentrations that could lead to methane accidents and even seriously threaten the lives of workers.

[0003] Chinese Patent CN222050135U discloses a gas detection device for fully mechanized coal mining faces. The device includes a gas detection air intake mechanism. The air intake mechanism is internally equipped with moisture-absorbing silica gel, which is fixed to both sides of a sliding plate. An air intake pipe is also located inside the air intake mechanism. By using the moisture-absorbing silica gel and a moisture-proof membrane cover, the device effectively removes and absorbs moisture from the coal mine. Compared to existing gas detection devices that lack these features, this device prevents humid air and water vapor from entering the equipment, protecting components and sensors from damage. It also prevents moisture from causing inaccurate or missed gas detection, thus reducing the risk of gas accidents in coal mines.

[0004] However, the above technical solution has the following drawbacks: during the use of the gas detection device, the filter is easily covered by dust and water vapor, which reduces the air intake of the detection device and thus affects the accuracy of the detection device, making it inconvenient to use. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a gas detection device for coal mines.

[0006] The technical solution of this utility model is: a gas detection device for coal mines, comprising a housing, a filter plate, a partition plate, an electric roller, a mounting part, and a fixing plate;

[0007] The filter plate is connected to the air inlet port of the housing, and the end of the housing away from the filter plate is provided with multiple air outlets. The fixed plate is slidably connected to the surface of the housing, and the housing is provided with a moving mechanism to drive the fixed plate to move.

[0008] The mounting part is rotatably connected to the fixing plate. The mounting part is equipped with bolts, which are threadedly connected to the fixing plate. The electric roller is rotatably connected to the mounting part. The outer circumference of the electric roller is equipped with bristles, which are tightly attached to the surface of the filter plate.

[0009] The partition plate is provided with a plurality of connecting boxes, and the partition plate forms an S-shaped air inlet cavity in the box.

[0010] Preferably, the convex block and the fixed frame are further included;

[0011] The fixed frame is connected to the inner wall of the box, the fixed frame is in a meandering shape, the inner wall of the box is provided with a groove, the convex block is connected to the lower end of the filter plate, and the box is provided with a limiting assembly;

[0012] The convex block is connected to the groove in a matched mode, the limiting assembly is pressed against the surface of the filter plate, and the filter plate is pressed against the fixed frame.

[0013] Preferably, the limiting assembly comprises a limiting block and a spring;

[0014] The box is provided with a blind hole, the limiting block is connected to the blind hole in a sliding mode, the spring is connected to the end of the blind hole and the limiting block, and the limiting block is pressed against the surface of the filter plate.

[0015] Preferably, the surface of the fixed frame close to the filter plate is provided with a sealing ring, and the sealing ring is in an elastic structure.

[0016] Preferably, the moving mechanism comprises a fixed part, a driving assembly, a lead screw and a sliding block;

[0017] The fixed part is connected to the surface of the box, the lead screw is connected to the fixed part in a rotating mode, the driving assembly is connected to the fixed part, and the driving assembly is connected to the lead screw in a transmission mode;

[0018] The sliding block is connected to the fixed part in a sliding mode, the sliding block is connected to the lead screw in a threaded mode, and the fixed plate is connected to the sliding block.

[0019] Preferably, the box is provided with a handle.

[0020] Compared with the prior art, the above technical scheme of the utility model has the following beneficial technical effects:

[0021] 1、in the utility model, the device is placed in a suitable position during use, a plurality of fans start to suck external air into the box, impurities in the air are blocked by the filter plate, the gas passes through the S-shaped air inlet cavity in the box and passes through a plurality of gas detection sensors, and one-time detection of the plurality of sensors makes the result more accurate.

[0022] 2、in the utility model, the moving mechanism drives the electric roller to move, so that the filter plate can be cleaned, so that the filter plate is not covered by dust in the air during use, and the passing property of the gas is guaranteed.

[0023] 3、in the utility model, the fixed plate is rotated, so that the electric roller is away from the surface of the filter plate, the convex block is connected to the groove in a matched mode during installation of the filter plate, the limiting block is extruded, so that the filter plate is pressed against the surface of the fixed frame, the limiting block is loosened, and the limiting block is pressed against the surface of the filter plate. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 A perspective view of a gas detection device for coal mine is provided.

[0025] Figure 2 A structure diagram of the inside of the box in the gas detection device for coal mine is provided.

[0026] Figure 3 A structure diagram of the moving mechanism in an embodiment is provided.

[0027] Figure 4 A Figure 3 structure diagram of the inside of A.

[0028] Reference signs: 1, box; 2, filter plate; 3, protruding block; 4, fixed part; 5, groove; 6, brush; 7, partition; 8, electric roller; 9, sealing ring; 10, fan; 11, driving assembly; 12, mounting part; 13, handle; 14, bolt; 15, limiting block; 16, gas detection sensor; 17, air outlet; 18, spring; 19, fixing frame; 20, lead screw; 21, sliding block; 22, fixed plate. DETAILED DESCRIPTION

[0029] Embodiment one

[0030] As Figures 1-4 shown, the utility model provides a gas detection device for coal mine, including box 1, filter plate 2, partition 7, electric roller 8, mounting part 12 and fixed plate 22;

[0031] Filter plate 2 connects the air inlet of box 1, and the end of box 1 away from filter plate 2 is provided with a plurality of air outlets 17, and fixed plate 22 is slidingly connected to the surface of box 1, and box 1 is provided with a moving mechanism for driving fixed plate 22 to move;

[0032] Further, box 1 is provided with a handle 13;

[0033] Mounting part 12 is rotatably connected to fixed plate 22, and mounting part 12 is provided with a bolt 14, which is threadedly connected to fixed plate 22, electric roller 8 is rotatably connected to mounting part 12, and the outer circumferential surface of electric roller 8 is provided with brush 6, which is tightly attached to the surface of filter plate 2;

[0034] Partition 7 is provided with a plurality of and is connected to the inner wall of box 1, and partition 7 forms an S-shaped air inlet cavity in box 1, a plurality of fans 10 are arranged in the air inlet cavity, a plurality of gas detection sensors 16 are arranged in the air inlet cavity, and the gas detection sensors 16 are connected to a plurality of partitions 7.

[0035] The utility model discloses a device is placed in proper position, and multiple fan 10 starts and draws the outside air into the inside of box 1, and the impurity in air is blocked by filter plate 2, and the gas passes through the S -shaped air inlet cavity in the box 1 and passes through multiple gas detection sensor 16, and multiple sensor detects once and makes the result more accurate, and the utility model discloses a mobile mechanism drives electric roller 8 to move and can clean filter plate 2, so that it is not covered by dust in air when using, guarantees the passability of gas.

[0036] Example two

[0037] As Figures 2-4 The utility model discloses a kind of gas detection devices for coal mine, compared with example one, the embodiment also includes lug 3 and fixed frame 19;

[0038] Fixed frame 19 connects the inner wall of box 1, fixed frame 19 is back-shaped, the inner wall of box 1 is equipped with recess 5, lug 3 connects the lower end of filter plate 2, box 1 is equipped with limiting component;

[0039] Lug 3 is connected with recess 5 cooperation, limiting component is pressed on the surface of filter plate 2, filter plate 2 is pressed on fixed frame 19.

[0040] Limiting component includes limiting block 15 and spring 18;

[0041] Box 1 is equipped with blind hole, limiting block 15 is slidably connected with blind hole, spring 18 connects the end of limiting block 15 and blind hole, limiting block 15 is pressed on the surface of filter plate 2.

[0042] Further, fixed frame 19 is equipped with sealing ring 9 close to the surface of filter plate 2, and sealing ring 9 is of elastic structure.

[0043] In the embodiment, rotating fixed plate 22 makes electric roller 8 away from the surface of filter plate 2, lug 3 is connected with recess 5 cooperation when filter plate 2 is installed, extruding limiting block 15, so that filter plate 2 is pressed on the surface of fixed frame 19, limiting block 15 is pressed on the surface of filter plate 2 after loosening.

[0044] Example three

[0045] As Figures 3-4 The utility model discloses a kind of gas detection devices for coal mine, compared with example one, the mobile mechanism in the embodiment includes fixed part 4, drive component 11, lead screw 20 and sliding block 21;

[0046] Fixed part 4 connects the surface of box 1, lead screw 20 is rotationally connected fixed part 4, drive component 11 connects fixed part 4, and drive component 11 is transmission connection with lead screw 20;

[0047] Sliding block 21 is slidably connected with fixed part 4, and sliding block 21 is threadedly connected with lead screw 20, and fixed plate 22 is connected with sliding block 21.

[0048] In this embodiment, the driving assembly 11 drives the rotation of the screw rod 20, the sliding block 21 drives the fixed plate 22 to move along the axis direction of the screw rod 20, the fixed plate 22 drives the movement of the electric roller 8, the rotating brush 6 on the electric roller 8 cleans the filter plate 2, so that the air can smoothly enter the inside of the device when the device is used.

[0049] The above describes the embodiments of the present application in detail in combination with the drawings, but the present application is not limited to this, and various changes can be made within the knowledge range of the skilled in the art without departing from the purpose of the present application.

Claims

1. A gas detection device for coal mines, characterized in that, It includes a housing (1), filter plates (2), partitions (7), electric rollers (8), mounting parts (12), and fixing plates (22); The filter plate (2) is connected to the air inlet of the box (1). The end of the box (1) away from the filter plate (2) is provided with multiple air outlets (17). The fixing plate (22) is slidably connected to the surface of the box (1). The box (1) is provided with a moving mechanism to drive the fixing plate (22) to move. The mounting part (12) is rotatably connected to the fixing plate (22). The mounting part (12) is provided with bolts (14). The bolts (14) are threadedly connected to the fixing plate (22). The electric roller (8) is rotatably connected to the mounting part (12). The outer circumferential surface of the electric roller (8) is provided with bristles (6). The bristles (6) are tightly attached to the surface of the filter plate (2). The partition (7) is provided with multiple partitions and connected to the inner wall of the box (1). The partition (7) forms an S-shaped air intake chamber inside the box (1). Multiple fans (10) are provided in the air intake chamber. Multiple gas detection sensors (16) are provided in the air intake chamber. The gas detection sensors (16) are connected to multiple partitions (7).

2. The gas detection device for coal mines according to claim 1, characterized in that, It also includes a protrusion (3) and a mounting bracket (19); The fixing frame (19) is connected to the inner wall of the box (1). The fixing frame (19) is U-shaped. The inner wall of the box (1) is provided with a groove (5). The protrusion (3) is connected to the lower end of the filter plate (2). The box (1) is provided with a limiting component. The protrusion (3) and the groove (5) are connected in a fit, and the limiting component is pressed on the surface of the filter plate (2), and the filter plate (2) is pressed on the fixing frame (19).

3. A gas detection device for coal mines according to claim 2, characterized in that, The limiting assembly includes a limiting block (15) and a spring (18); The housing (1) is provided with a blind hole, the limiting block (15) is slidably connected to the blind hole, the spring (18) connects the limiting block (15) and the end of the blind hole, and the limiting block (15) is pressed against the surface of the filter plate (2).

4. A gas detection device for coal mines according to claim 2, characterized in that, The surface of the fixing frame (19) near the filter plate (2) is provided with a sealing ring (9), which is an elastic structure.

5. A gas detection device for coal mines according to claim 1, characterized in that, The moving mechanism includes a fixed part (4), a drive assembly (11), a lead screw (20), and a slider (21); The fixing part (4) is connected to the surface of the housing (1), the lead screw (20) is rotatably connected to the fixing part (4), the drive assembly (11) is connected to the fixing part (4), and the drive assembly (11) is connected to the lead screw (20) for transmission. The slider (21) is slidably connected to the fixing part (4), the slider (21) is threadedly connected to the lead screw (20), and the fixing plate (22) is connected to the slider (21).

6. A gas detection device for coal mines according to claim 1, characterized in that, The box (1) is equipped with a handle (13).

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