Coal mine gas alarm system

Abstract

The utility model relates to the technical field of coal mine gas detection, in particular to a coal mine gas alarm system, which comprises a transportation platform, and a support rod capable of rotating to a vertical state is mounted on one side of the top surface of the transportation platform. Compared with the prior art, the gas concentration detector has the advantages that the supporting rods and the mounting base are erected through the shortening action of the electric push rod, the three supporting rods are lifted to a certain height, the connecting pipe, the exhaust fan and the gas concentration detector body are arranged, and meanwhile the exhaust fan is communicated with the gas concentration detector body through a pipeline; one connecting pipe is connected with one end of an exhaust fan in an inserted mode, the exhaust fan is powered on to operate and used for extracting air at the specified height and guiding the air into the gas concentration detector body for detection, the three connecting pipes are replaced in sequence, gas concentration measurement of different heights is achieved, the overall structure is simple, and practicability is high. And the operation difficulty of operators is greatly reduced, so that the problems in the prior art are effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal mine gas detection technical field, especially a coal mine gas alarm system. BACKGROUND

[0002] Coal mine construction refers to the process of converting the design of coal mine construction project into physical engineering through systematic engineering means. This process needs to follow the design requirements and covers technical application, construction organization and safety management, aiming to realize the development and utilization of coal resources. During the coal mine construction, relevant instruments need to be used to measure the gas concentration inside the roadway, and real-time monitoring of gas concentration can effectively prevent gas explosion, suffocation and other accidents, and ensure the safety of miners and the integrity of mine facilities.

[0003] In the traditional gas measurement process, manual fixed-point detection is generally used. However, in the coal mine roadway, it is difficult for manual operation to reach the specified position at the top of the roadway, which affects gas detection. Therefore, a coal mine gas alarm system is proposed to replace manual gas concentration detection at different positions in the roadway, thereby solving the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims to overcome the shortcomings of the prior art and provide a coal mine gas alarm system to effectively solve the problems of the prior art.

[0005] To achieve the above purpose, one embodiment of the utility model provides a coal mine gas alarm system, which comprises a transportation platform, a support rod rotatable to a vertical state is installed on one side of the top surface of the transportation platform, an installation seat is installed on the outer wall of the support rod, three installation rods are installed on the top end of the installation seat, two of the installation rods are horizontally placed, an air inlet is installed on one end of each of the three installation rods, a connecting pipe is installed on one end of each of the three installation rods, a bottom plate is installed on one side of the middle of the top surface of the transportation platform, a suction fan and a gas concentration detector body are respectively installed on the top surface of the bottom plate, and the air outlet of the suction fan is connected to the gas concentration detector body through a pipeline.

[0006] According to the above any scheme, the middle of the top surface of the transportation platform is rotatably installed with an electric push rod, and the output end of the electric push rod is rotatably connected to the bottom end of the support rod. This scheme facilitates the extension or shortening of the electric push rod to drive the support rod to rotate, so that the support rod rotates in the horizontal and vertical directions, the support rod is operated to be retracted or extended, the height is reduced, the space occupation is reduced, and the position of the whole is easily transferred by the operator.

[0007] Preferably, the tool box is installed on the side of the transportation platform away from the top surface of the base plate, and the support seat is installed on the side of the transportation platform away from the top surface of the support rod to support the mounting seat.

[0008] Preferably, the one mounting rod is vertically placed at the top, and the bottom end thereof is connected to the top end of the mounting seat by plug-in connection, and the adjacent ends of the other two mounting rods are fixedly connected to the top ends on both sides of the mounting seat by fasteners.

[0009] Preferably, the outer wall of the support rod is provided with a plurality of mounting holes, and the bottom end of the outer wall of the mounting seat is provided with a bolt fastener which is inserted into any one of the mounting holes.

[0010] Preferably, the pipe placing seat is installed at a corner of the top surface of the base plate, and the top end of the pipe placing seat is provided with three placing holes for plug-in placement of the connecting pipes.

[0011] The utility model has the following advantages:

[0012] 1. The coal mine gas alarm system, through the setting support rod, mounting seat and three installation rods, the bottom end of the support rod is rotatably connected with the output end of the electric push rod, the support rod and the mounting seat are erected by shortening the action of the electric push rod, the three support rods are lifted to a certain height, the connecting pipe, the exhaust fan and the gas concentration detector body are arranged, the exhaust fan is connected with the gas concentration detector body through the pipeline, then one connecting pipe is inserted with one end of the exhaust fan, the exhaust fan is powered on and runs, is used for extracting air at a specified height, and is drained to the inside of the gas concentration detector body for detection, the three connecting pipes are replaced in turn, so that the gas concentration measurement at different heights is realized, the overall structure is simple, the operation difficulty of the operator is greatly reduced, and the problems existing in the prior art are effectively solved.

[0013] 2. The coal mine gas alarm system, three installation rods are arranged, the end portions of two installation rods are fixedly connected with the top end of the mounting seat through fasteners, and the other installation rod is inserted with the top end of the mounting seat, then the mounting seat is lowered by the elongation action of the electric push rod, the fasteners are loosened, the two installation rods are rotated to the side of the mounting seat, the other installation rod is pulled out and placed in the inside of the tool box, so that the space occupation is reduced, the operator is convenient for position transfer, when the support rod is in the vertical state, the height of the three air inlets is changed by connecting the bolt fastener with the installation holes at different heights, so that the measurement requirements at different heights are met. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the overall structure diagram of the utility model;

[0015] Figure 2 It is the transport platform structure diagram of the utility model;

[0016] Figure 3 It is the explosion structure diagram of the mounting seat and the installation rod of the utility model;

[0017] Figure 4 It is the explosion structure diagram of the mounting seat and the support rod of the utility model;

[0018] Figure 5 It is the bottom plate structure diagram of the utility model.

[0019] In the drawing: 1-transport platform, 2-bottom plate, 3-gas concentration detector body, 4-pipeline placing seat, 5-support rod, 6-mounting seat, 7-installation rod, 9-air inlet, 10-connecting pipe, 11-exhaust fan, 12-tool box, 13-supporting seat, 14-electric push rod, 15-bolt fastener, 16-installation hole. DETAILED DESCRIPTION

[0020] The utility model is further described below with reference to the drawings, but the protection scope of the utility model is not limited to the following.

[0021] As Figures 1 to 5 As shown in the figure, a coal mine gas alarm system, it includes transport platform 1, the top surface of transport platform 1 one side is installed rotatable to vertical state's support pole 5, the outer wall of support pole 5 is installed with mounting seat 6, the top end of mounting seat 6 is installed with three installation poles 7, two installation poles 7 are placed horizontally, one end of three installation poles 7 is installed with air inlet 9, and one end of three installation poles 7 is installed with connecting pipe 10, the top surface of transport platform 1 middle one side is installed with bottom plate 2, the top surface of bottom plate 2 is installed with exhaust fan 11 and gas concentration detector body 3 respectively, the air outlet of exhaust fan 11 is connected with gas concentration detector body 3 through pipeline, this pipeline can be manually removed, in the measurement stage, for emptying the residual air in connecting pipe 10, avoid the influence to subsequent measurement.

[0022] Gas concentration detector body 3 includes electrochemical sensor, conversion circuit, processor, communication module, sound-light alarm and display screen, when gas molecules and sensor surface occur chemical reaction or physical adsorption, will produce electric signal change, the electric signal output by sensor is handled through amplification circuit and A / D converter, converts into readable concentration numerical value, and sends to display screen and carries out direct pipe display, simultaneously communication module can realize 4G / 5G communication, to facilitate the data of measured concentration to be uploaded, when real-time concentration exceeds threshold value, will automatically trigger sound-light alarm operation, and prewarns to outside.

[0023] The middle of the top surface of transport platform 1 is rotatably installed with an electric push rod 14, and the output end thereof is rotatably connected to the bottom end of the support pole 5. As an optional technical solution of the utility model, the electric push rod 14 can be extended or shortened to drive the support pole 5 to rotate, so that the support pole 5 can be rotated in the horizontal and vertical directions. The support pole 5 can be retracted and extended to reduce the height and the space occupation, and the position of the whole device can be easily transferred by the operator.

[0024] A tool box 12 is installed on the side of the top surface of the transport platform 1 away from the bottom plate 2. A support seat 13 is installed on the side of the top surface of the transport platform 1 away from the support pole 5 to support the mounting seat 6. As an optional technical solution of the utility model, the tool box 12 provides a storage position for tools and an installation pole 7. The support seat 13 supports the mounting seat 6 when the mounting seat 6 is in a horizontal state. The top surface of the support seat 13 is recessed downward to provide a storage position for the mounting seat 6 and prevent the mounting seat 6 from sliding horizontally during the movement of the transport platform 1.

[0025] The top one mounting rod 7 is vertically placed, and the bottom end thereof is insertedly connected with the top end of the mounting base 6, and the adjacent end portions of the other two mounting rods 7 are fixedly connected with the top ends of the two sides of the mounting base 6 through fasteners, as an optional technical scheme of the utility model, thus it is convenient to adjust the angle of the two mounting rods 7 placed symmetrically under the adjustment of loosening the fasteners, after the adjustment is completed, the fasteners are tightened, the position locking is convenient, and meanwhile the end portion of the other mounting rod 7 is butted with the mounting base 6, so that the early installation and the late dismounting of the operator are convenient.

[0026] The outer wall of the supporting rod 5 is provided with a plurality of mounting holes 16, and the bottom end of the outer wall of the mounting base 6 is provided with a bolt fastener 15, which is inserted into any one of the mounting holes 16, as an optional technical scheme of the utility model, thus different mounting positions are provided for the bolt fastener 15, the length of the supporting rod 5 in the mounting base 6 is changed, the length of the supporting rod 5 and the mounting base 6 in the vertical state is changed, and the utility model is applicable to different height roadways, and the utility is higher, and the utility model is convenient to use and popularize.

[0027] The pipeline placing base 4 is installed at one corner of the top surface of the bottom plate 2, and the top end of the pipeline placing base 4 is provided with three placing holes for inserting and placing the connecting pipes 10, as an optional technical scheme of the utility model, thus the placing positions are provided for the three connecting pipes 10, one connecting pipe 10 can be taken out from the placing hole and is butted with the air inlet position of the exhaust fan 11 during use, the utility model is convenient to use, the fixed position of the roadway is convenient to air extract, and the gas concentration detection of the gas concentration detector body 3 is convenient.

[0028] The coal mine gas alarm system needs the following steps during use:

[0029] 1) during use, the bolt fastener 15 is adjusted to be installed in the inside of the mounting hole 16 at the specified position according to the need, and then the electric push rod 14 is shortened to make the mounting base 6 and the supporting rod 7 present the inclined state;

[0030] 2) the bolt fastener 15 is loosened, the two mounting rods 7 are adjusted to the direct position, and then the bolt fastener 15 is tightened;

[0031] 3) the remaining one mounting rod 7 is inserted with the end portion of the mounting base 6;

[0032] 4) the electric push rod 14 is continuously shortened to make the supporting rod 5 and the mounting base 6 present the vertical state;

[0033] 5) the connecting pipe 10 at a certain position is plugged with the air extractor 11, the air extractor 11 is powered to run, the air at a certain height is introduced into the gas concentration detector body 3, and the gas concentration detector body 3 is convenient to measure the gas concentration contained in the air.

[0034] In summary, when the user uses, through the setting support rod 5, mounting seat 6 and three mounting rods 7, at the same time, the bottom end of the support rod 5 is rotatably connected with the output end of the electric push rod 14, through the shortening action of the electric push rod 14, the support rod 5 and the mounting seat 6 are erected, the three support rods 5 are lifted to a certain height, through the setting connecting pipe 10, air extractor 11 and gas concentration detector body 3, at the same time, the air extractor 11 is connected with the gas concentration detector body 3 through the pipeline, then one connecting pipe 10 is plugged with one end of the air extractor 11, the air extractor 11 is powered to run, used for extracting the air at a certain height, and draining to the inside of the gas concentration detector body 3 for detection, the three connecting pipes 10 are sequentially replaced, so that the gas concentration at different heights is measured, the overall structure is simple, the operation difficulty of the operator is greatly reduced, so that the problems existing in the prior art are effectively solved, and then through the setting three mounting rods 7, the end portions of the two mounting rods 7 are fixedly connected with the top end of the mounting seat 6 through fasteners, the other mounting rod 7 is plugged with the top end of the mounting seat 6, then the mounting seat 6 is lowered through the elongation action of the electric push rod 14, the fasteners are loosened, the two mounting rods 7 are rotated to the side of the mounting seat 6, the other mounting rod 7 is pulled out and placed into the inside of the tool box 12, so that the space occupation is reduced, the operator is convenient to move the whole, when the support rod 5 is in the vertical state, the height of the three air inlets 9 is changed by changing the bolt fastener 15 and the mounting hole 16 at different heights, so as to meet the needs of different height measurement.

[0035] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A coal mine gas alarm system, characterized in that: The system includes a transport platform (1), on one side of the top surface of the transport platform (1) a support rod (5) that can be rotated to a vertical position. The outer wall of the support rod (5) is fitted with a mounting base (6). The top of the mounting base (6) is fitted with three mounting rods (7), two of which are horizontally placed. One end of each of the three mounting rods (7) is fitted with an air inlet (9), and one end of each of them is fitted with a connecting pipe (10). A base plate (2) is installed on one side of the middle of the top surface of the transport platform (1). The top surface of the base plate (2) is fitted with an exhaust fan (11) and a gas concentration detector body (3). The air outlet of the exhaust fan (11) is connected to the gas concentration detector body (3) through a pipe.

2. The coal mine gas alarm system according to claim 1, characterized in that: An electric push rod (14) is rotatably installed in the middle of the top surface of the transport platform (1), and its output end rotates with the bottom end of the support rod (5).

3. A coal mine gas alarm system according to claim 2, characterized in that: A toolbox (12) is installed on the side of the transport platform (1) away from the top surface of the base plate (2), and a support base (13) for supporting the mounting base (6) is installed on the side of the transport platform (1) away from the top surface of the support rod (5).

4. A coal mine gas alarm system according to claim 3, characterized in that: One of the mounting rods (7) is placed vertically, and its bottom end is inserted into the top end of the mounting base (6). The adjacent ends of the other two mounting rods (7) are fixedly connected to the top ends of the mounting base (6) on both sides by fasteners.

5. A coal mine gas alarm system according to claim 4, characterized in that: The outer wall of the support rod (5) is provided with multiple mounting holes (16), and the bottom end of the outer wall of the mounting base (6) is provided with bolt fasteners (15), which are inserted into the interior of any mounting hole (16).

6. A coal mine gas alarm system according to claim 5, characterized in that: A pipe placement seat (4) is installed at one corner of the top surface of the base plate (2), and three placement holes are installed at the top of the seat for inserting and placing connecting pipes (10).

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