Mine production safety gas detection device

Abstract

The utility model relates to a mine production safety gas detection device, which belongs to the technical field of gas detection devices and comprises a gas detector, a gas collection window is arranged on the gas detector, a positioning base is arranged at the bottom of the gas detector, and a lifting structure and an auxiliary structure are arranged on the positioning base. According to the mine production safety gas detection device, the lifting structure and the auxiliary structure are arranged, a double-brake motor is used as a driving source, a transmission rod is driven to rotate, the rotating transmission rod drives two gears to rotate, the gears are meshed with racks, the gears climb upwards and drive the transmission rod to move upwards synchronously, and the safety of mine production is improved. And then the connecting frame in the supporting frame is controlled to drive the gas detector to ascend, so that the height of the gas detector is adjusted, the gas detector can be conveniently used in mines with different heights, and the situations that layout is troublesome and the safety of miners in underground operation is affected are avoided.

Description

Technical Field

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

[0002] A gas detection device, also known as a gas detector, is a specialized device used to detect the concentration of methane gas in underground mines. It can measure the content of combustible gases such as methane in real time and accurately, and issue an alarm when the gas concentration exceeds the safety threshold. It provides crucial safety assurance for mine safety production, preventing gas explosions and ensuring the safety of miners working underground. In addition to detecting methane concentration, gas detectors can also detect the concentration of other harmful gases, such as carbon monoxide and carbon dioxide. Gas detectors typically have multiple sensors and sound and light alarm functions. The bottom of the device is also equipped with a base and support structure. In mines where multiple harmful gases are emitted, such as some coal mines with a high tendency for spontaneous combustion or mines with multiple geological hazards, this device is particularly useful.

[0003] In current technologies, the density of methane gas generated in mining operations is less than that of air. This means that methane gas in mine tunnels tends to float to the top of the tunnels. However, the complex layout and varying heights of mine tunnels necessitate the installation of methane detectors at different heights, making the deployment process cumbersome. Furthermore, improper placement can compromise the safety of miners working underground. Therefore, a methane detection device for mine production safety is proposed to address these issues. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a gas detection device for mine production safety, which has the advantage of height adjustment. It solves the problem that the density of gas generated in mining projects is less than that of air, meaning that gas in mine tunnels will float to the top of the mine. However, the layout of mine tunnels is complex and the height of mine tunnels varies, which means that gas detectors in different locations need to be installed at different heights, making the gas detector deployment process more troublesome. Moreover, improper deployment can also fail to guarantee the safety of miners working underground.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a gas detection device for mine production safety, comprising a gas detector, wherein the gas detector is provided with a gas collection window, and a positioning base is provided at the bottom of the gas detector, wherein the positioning base is provided with a lifting structure and an auxiliary structure;

[0006] The lifting structure includes a support frame fixedly installed on the top of the positioning base. Inside the support frame, a connecting frame fixedly connected to the bottom of the gas detector is slidably installed. On both the left and right sides of the support frame, racks for climbing are fixedly installed. Inside the connecting frame, a transmission rod with both ends passing through and extending to the outside of the support frame is rotatably installed. Gears that mesh with the racks are fixedly installed on the outer surfaces of the two transmission rods. A double-brake motor fixedly connected to the right end of the transmission rod is fixedly installed on one side of the support frame.

[0007] Furthermore, the auxiliary structure includes two support blocks that are slidably installed inside the support frame and used to support the rotation of the transmission rod. The support frame is provided with guide components to limit the up-and-down sliding trajectory of the two support blocks. The top of the support frame is fixedly connected to two pressure sensors that are electrically connected to the dual brake motors respectively.

[0008] Furthermore, the gas collection window is fixedly installed on the gas detector, which is equipped with a display and an alarm.

[0009] Furthermore, a limiting block is fixedly installed on the rear side wall of the inner cavity of the support frame, one end of the limiting block penetrates and extends into the interior of the connecting frame, and the inner wall of the connecting frame is slidably connected to the outer surface of the limiting block.

[0010] Furthermore, a support plate is fixedly installed on the right side of the support frame, and two clamps are fixedly installed on the top of the support plate. The dual-brake motor is fixedly installed in the two clamps. Through slots are opened on both the left and right sides of the support frame, and the two ends of the transmission rod pass through the two through slots respectively.

[0011] Furthermore, each of the two support blocks has a circular groove inside, and a bearing is fixedly installed inside each of the two circular grooves. The two ends of the transmission rod pass through the two bearings respectively, and the inner peripheral walls of the two bearings are fixedly connected to the outer surface of the transmission rod.

[0012] Furthermore, the guide component includes two limiting strips and two limiting grooves. The two limiting strips are respectively fixedly installed on the rear side wall of the inner cavity of the two through grooves, and the two limiting grooves are respectively opened on the back of the two support blocks. The outer surface of the limiting strips is slidably connected to the inner wall of the limiting groove.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] This mine safety gas detection device, equipped with a lifting structure and auxiliary structures, utilizes a dual-brake motor as a drive source. The rotating transmission rod drives two gears, which mesh with a rack and pinion, causing the gears to rise and simultaneously move the transmission rod upwards. This, in turn, controls the connecting frame inside the support frame, raising the gas detector and allowing for height adjustment. This facilitates use in mines at different heights, avoiding installation difficulties and ensuring miners' safety underground. This significantly enhances the practicality of the mine safety gas detection device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the present utility model. Figure 1 Enlarged view of point A in the image;

[0017] Figure 3 This is a three-dimensional schematic diagram of the structural support frame, connecting frame, and sensing component of this utility model.

[0018] In the diagram: 1. Gas detector; 2. Gas collection window; 3. Positioning base; 41. Support frame; 42. Connecting frame; 43. Rack; 44. Transmission rod; 45. Gear; 46. Double brake motor; 47. Support block; 48. Guide component; 49. Pressure sensor. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1 to 3 This embodiment of a mine production safety gas detection device includes a gas detector 1, a gas collection window 2 on the gas detector 1, a positioning base 3 at the bottom of the gas detector 1, a lifting structure and an auxiliary structure on the positioning base 3, the gas collection window 2 being fixedly installed on the gas detector 1, a display being installed on the gas detector 1, and an alarm being fixedly installed on the gas detector 1.

[0021] In this embodiment, the lifting structure includes a support frame 41 fixedly installed on the top of the positioning base 3. A connecting frame 42, which is fixedly connected to the bottom of the gas detector 1, is slidably installed inside the support frame 41. A limit block is fixedly installed on the rear side wall of the inner cavity of the support frame 41. One end of the limit block passes through and extends into the interior of the connecting frame 42. The inner wall of the connecting frame 42 is slidably connected to the outer surface of the limit block to restrict the sliding direction of the connecting frame 42 inside the support frame 41. Racks 43 for climbing are fixedly installed on both the left and right sides of the support frame 41. A transmission rod 44 with both ends passing through and extending to the outside of the support frame 41 is rotatably installed inside the connecting frame 42. Gears 45 that mesh with the racks 43 are fixedly installed on the outer surfaces of the two transmission rods 44. A double-brake motor 46, which is fixedly connected to the right end of the transmission rod 44, is fixedly installed on one side of the support frame 41 to facilitate the rotation of the transmission rod 44.

[0022] A support plate is fixedly installed on the right side of the support frame 41, and two clamps are fixedly installed on the top of the support plate. The dual-brake motor 46 is fixedly installed in the two clamps. Through slots are opened on both the left and right sides of the support frame 41. The two ends of the transmission rod 44 pass through the two through slots respectively, so that the dual-brake motor 46 can drive the transmission rod 44 and drive the gear 45 to rotate, so that the gear 45 drives the transmission rod 44 to move upward inside the through slot during the climbing process.

[0023] By adopting the above technical solution, the double-brake motor 46 on the right side of the starting support frame 41 is activated, which drives the transmission rod 44 to rotate. The rotating transmission rod 44 drives the two gears 45 to rotate synchronously, causing the gears 45 to climb upward on the rack 43 that meshes with them. This causes the moving gears 45 to drive the transmission rod 44 to move synchronously, thereby controlling the support frame 41 to move upward inside the connecting frame 42. In turn, the moving connecting frame 42 drives the gas detector 1 to rise, thereby changing the height of the gas detector 1.

[0024] In this embodiment, the auxiliary structure includes two support blocks 47 that are slidably installed inside the support frame 41 and used to support the rotation of the transmission rod 44. Each of the two support blocks 47 has a circular groove inside, and a bearing is fixedly installed inside each of the two circular grooves. The two bearings pass through both ends of the transmission rod 44 respectively. The inner peripheral walls of the two bearings are fixedly connected to the outer surface of the transmission rod 44, so as to facilitate the rotation of the transmission rod 44 by using the bearings. The support frame 41 is provided with a guide component 48 for limiting the up and down sliding trajectory of the two support blocks 47. The top of the support frame 41 is fixedly connected to two pressure sensors 49 that are electrically connected to the dual brake motor 46 respectively.

[0025] The guide component 48 includes two limiting strips and two limiting grooves. The two limiting strips are fixedly installed on the rear side wall of the inner cavity of the two through grooves, and the two limiting grooves are respectively opened on the back of the two support blocks 47. The outer surface of the limiting strips is slidably connected to the inner wall of the limiting groove, so as to restrict the support block 47 to move up and down stably inside the support frame 41.

[0026] By adopting the above technical solution, it is possible to facilitate the use of pressure sensor 49 to contact the bottom of gas detector 1 and to shut down the double brake motor 46 in a timely manner, to facilitate the adjustment of the height of gas detector 1 at the top of connecting frame 42, and to facilitate the use of support block 47 to support transmission rod 44 to rotate while moving upward or downward.

[0027] The working principle of the above embodiments is as follows:

[0028] The safety gas detection device for the mine is used by first fixing the positioning base 3 in the mine shaft, then starting the double-brake motor 46 on the right side of the support frame 41, which drives the transmission rod 44 to rotate. The rotating transmission rod 44 drives the two gears 45 to rotate synchronously, causing the gears 45 to climb upward on the rack 43 they mesh with. This causes the moving gears 45 to drive the transmission rod 44 to move synchronously, thereby controlling the support frame 41 to move upward inside the connecting frame 42. The moving connecting frame 42 then drives the gas detector 1 to be lifted, thereby changing the height of the gas detector 1. This makes it easier to install the gas detector 1 in mine shafts at different heights.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," 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. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gas detection device for mine production safety, comprising a gas detector (1), characterized in that: The gas detector (1) is provided with a gas collection window (2), and the bottom of the gas detector (1) is provided with a positioning base (3). The positioning base (3) is provided with a lifting structure and an auxiliary structure. The lifting structure includes a support frame (41) fixedly installed on the top of the positioning base (3). A connecting frame (42) fixedly connected to the bottom of the gas detector (1) is slidably installed inside the support frame (41). Racks (43) for climbing are fixedly installed on both the left and right sides of the support frame (41). A transmission rod (44) with both ends penetrating and extending to the outside of the support frame (41) is rotatably installed inside the connecting frame (42). Gears (45) meshing with racks (43) are fixedly installed on the outer surfaces of the two transmission rods (44). A double-brake motor (46) fixedly connected to the right end of the transmission rod (44) is fixedly installed on one side of the support frame (41).

2. The gas detection device for mine production safety according to claim 1, characterized in that: The auxiliary structure includes two support blocks (47) that are slidably installed inside the support frame (41) and used to support the rotation of the transmission rod (44). The support frame (41) is provided with a guide component (48) for limiting the up-and-down sliding trajectory of the two support blocks (47). The top of the support frame (41) is fixedly connected to two pressure sensors (49) that are electrically connected to the dual brake motor (46).

3. The gas detection device for mine production safety according to claim 1, characterized in that: The gas collection window (2) is fixedly installed on the gas detector (1), the gas detector (1) is equipped with a display, and the gas detector (1) is fixedly equipped with an alarm.

4. The gas detection device for mine production safety according to claim 1, characterized in that: A limiting block is fixedly installed on the rear side wall of the inner cavity of the support frame (41). One end of the limiting block penetrates and extends into the interior of the connecting frame (42). The inner wall of the connecting frame (42) is slidably connected to the outer surface of the limiting block.

5. A gas detection device for mine production safety according to claim 2, characterized in that: A support plate is fixedly installed on the right side of the support frame (41), and two clamps are fixedly installed on the top of the support plate. The double brake motor (46) is fixedly installed in the two clamps. Through slots are opened on both the left and right sides of the support frame (41), and the two ends of the transmission rod (44) pass through the two through slots respectively.

6. The gas detection device for mine production safety according to claim 5, characterized in that: Both of the support blocks (47) have circular grooves inside, and bearings are fixedly installed inside the two circular grooves. The two ends of the transmission rod (44) pass through the two bearings respectively, and the inner peripheral walls of the two bearings are fixedly connected to the outer surface of the transmission rod (44).

7. A gas detection device for mine production safety according to claim 5, characterized in that: The guide component (48) includes two limiting strips and two limiting grooves. The two limiting strips are fixedly installed on the rear side wall of the inner cavity of the two through grooves, and the two limiting grooves are respectively opened on the back of the two support blocks (47). The outer surface of the limiting strips is slidably connected to the inner wall of the limiting groove.

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