A gas concentration detection device for coal mine safety detection

Abstract

The utility model provides a kind of gas concentration detection device for coal mine safety detection, including the fixed frame being arranged at the top of coal mine, the bottom two sides of fixed frame are respectively provided with vertical board, multiple connecting slide bars are provided between two vertical boards, multiple connecting slide bars are slidably provided with mounting block, two vertical boards are respectively provided with electric capstan, the pull rope of two agitating capstans is respectively connected with the two side ends of mounting block, and gas sensor is provided on mounting block. According to the gas concentration detection device for coal mine safety detection of the utility model, not only the basic demand of detecting the gas concentration in coal mine can be met, but also the detection structure can be stably moved on the basis of changing and expanding the detection range.

Description

Technical Field

[0001] This utility model belongs to the field of gas concentration detection technology, and specifically relates to a gas concentration detection device for coal mine safety detection. Background Technology

[0002] Effective gas monitoring is of great significance to the safe production and long-term development of coal enterprises. In order to monitor underground gas in real time and effectively, enterprises have successively installed and equipped themselves with gas sensors and portable gas detectors.

[0003] Existing gas concentration detection devices, while meeting the basic requirements for gas concentration detection and allowing for the movement of the detection structure to change and expand the detection range, rely on a screw-driven mechanism to adjust the position of the detection structure. However, the high volume and density of dust in coal mine environments, coupled with the direct exposure of the screw-driven mechanism to the air, makes it highly susceptible to environmental dust interference, thus affecting the adjustment effect on the detection structure and failing to fully meet user needs. Utility Model Content

[0004] In view of this, this utility model addresses the shortcomings of the prior art by providing a gas concentration detection device for coal mine safety testing. It not only meets the basic requirements for detecting gas concentration in coal mines, but also enables the detection structure to move stably while changing and expanding the detection range.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a gas concentration detection device for coal mine safety detection, including a fixed frame set on the top of the coal mine, vertical plates set on both sides of the bottom of the fixed frame, multiple connecting slide rods set between the two vertical plates, mounting blocks slidably set on the multiple connecting slide rods, electric winches set on the two vertical plates, the pulling ropes of the two winches being connected to the two ends of the mounting blocks respectively, and a gas sensor set on the mounting blocks.

[0006] As a further improvement of this utility model, the mounting block is provided with a connecting sleeve that is slidably connected to the connecting slide rod.

[0007] As a further improvement of this utility model, an installation sleeve is also provided on the side end of the connecting sleeve, and a cleaning scraper sleeve is also provided on the installation sleeve.

[0008] As a further improvement of this utility model, the mounting block is also provided with a fixing sleeve that is fitted over the outside of the gas sensor, and the fixing sleeve is provided with a protective mesh cover that covers the outside of the gas sensor.

[0009] As a further improvement of this utility model, the fixing sleeve is provided with a mounting bolt for screwing into the mounting block, and the mounting block is provided with a threaded mounting hole for screwing into the mounting bolt.

[0010] As a further improvement of this utility model, the electric winch is fixedly installed on the mounting base on the outside of the vertical plate, and the pull rope passes through the guide pulley set on the vertical plate and is connected to the mounting block.

[0011] As a further improvement of this utility model, a protective cover is also provided between the two vertical plates, and the protective cover is located above the moving path of the mounting block. Providing a protective cover above the moving path can effectively prevent falling objects from the top plate from impacting the moving parts, ensuring the normal operation of the equipment and the safety of personnel.

[0012] As a further improvement of this utility model, a fixing plate is provided on the side end of the fixing frame, and anchor bolts for connecting to the top of the coal mine roadway are provided on the fixing plate. The fixing frame is provided with mounting through holes adapted to the anchor bolts, and the surface of the fixing frame is also coated with an anti-corrosion coating. The fixing frame is fixed to the top of the roadway with anchor bolts and is provided with an anti-corrosion coating, which enhances the stability and durability of the overall structure and is suitable for the complex working environment of humid and highly corrosive conditions in underground coal mines.

[0013] As a further improvement of this utility model, it also includes a synchronization control module for coordinating the start-stop and speed of the electric winches on both sides to achieve synchronous operation, and a synchronization control module for real-time monitoring of the position of the mounting block and feeding the signal back to the synchronization control module. The synchronization control module is electrically connected to the two electric winches, and the displacement sensor is set on the mounting block.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: Firstly, by setting a movable mounting block pulled by an electric winch below the fixed frame, combined with a sliding structure, the gas sensor can move horizontally along the vertical plate, thereby realizing dynamic detection of gas concentration in different horizontal areas of the roadway. This effectively expands the detection range and avoids the problems of limited detection range and the need to arrange multiple detection structures that exist in traditional fixed sensors.

[0015] Secondly, the device is equipped with a synchronous control module and displacement sensors, which can monitor the position of the installation block in real time and coordinate the start, stop and speed of the electric winches on both sides to ensure their synchronous operation, prevent the installation block from tilting or getting stuck during the movement, and improve the stability and safety of the equipment operation.

[0016] Third, the connecting sleeve is equipped with a cleaning scraper, which can automatically scrape off coal dust or debris attached to the surface of the slide rod during the horizontal movement of the installation block, keeping the sliding structure smooth; at the same time, the gas sensor is equipped with a protective mesh cover, which can effectively prevent foreign objects from colliding with the gas sensor and causing damage, thereby improving its working reliability and service life.

[0017] Fourth, the gas sensor is connected to the mounting block via a fixing sleeve and mounting bolts, making it easy to assemble and disassemble. This facilitates later maintenance, calibration, or replacement of different sensor models, improving the maintainability and flexibility of the equipment. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram of the gas sensor, connecting sleeve, mounting sleeve, cleaning scraper sleeve, fixing sleeve, protective mesh cover and mounting bolts of this utility model; Figure 3 This is a structural schematic diagram of the fixed frame and protective cover of this utility model.

[0020] In the diagram: 101, fixed frame; 102, vertical plate; 103, connecting slide bar; 104, mounting block; 105, electric winch; 106, gas sensor; 107, connecting sleeve; 108, mounting base; 109, guide pulley; 110, protective cover; 111, fixing plate; 112, mounting through hole; 113, pull rope; 201, mounting sleeve; 202, cleaning scraper sleeve; 203, fixing sleeve; 204, protective net cover; 205, mounting bolt. Detailed Implementation

[0021] To better understand this utility model, the following embodiments further illustrate its content, but the scope of protection of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.

[0022] like Figure 1 As shown, a gas concentration detection device for coal mine safety monitoring includes a fixed frame 101 installed at the top of the coal mine. Vertical plates 102 are respectively installed on both sides of the bottom of the fixed frame 101. Multiple connecting slide rods 103 are installed between the two vertical plates 102. Mounting blocks 104 are slidably installed on the multiple connecting slide rods 103. Electric winches 105 are respectively installed on the two vertical plates 102. The pulling ropes 113 of the two agitating winches are respectively connected to the two ends of the mounting blocks 104. Gas sensors 106 are installed on the mounting blocks 104.

[0023] like Figure 1 , 2As shown, the mounting block 104 is provided with a connecting sleeve 107 that is slidably connected to the connecting slide rod 103.

[0024] like Figure 2 As shown, a mounting sleeve 201 is also provided on the side end of the connecting sleeve 107, and a cleaning scraper sleeve 202 is also provided on the mounting sleeve 201.

[0025] like Figure 2 As shown, the mounting block 104 is also provided with a fixing sleeve 203 that is sleeved on the outside of the gas sensor 106, and the fixing sleeve 203 is provided with a protective mesh cover 204 that covers the outside of the gas sensor 106.

[0026] like Figure 2 As shown, the fixing sleeve 203 is provided with a mounting bolt 205 for screwing onto the mounting block 104, and the mounting block 104 is provided with a threaded mounting hole for screwing onto the mounting bolt 205. By simply allowing the mounting bolt 205 to pass through the side wall of the fixing sleeve 203 and screw onto the threaded mounting hole, the fixing sleeve 203 and the mounting block 104 can be flexibly fixed, and the protective mesh cover 204 and the mounting block 104 can be flexibly fixed.

[0027] like Figure 1 As shown, the electric winch 105 is fixedly installed on the mounting base 108 on the outside of the vertical plate 102, and the pull rope 113 passes through the guide pulley 109 set on the vertical plate 102 and is connected to the mounting block 104.

[0028] like Figure 3 As shown, a protective cover 110 is also provided between the two vertical plates 102, and the protective cover 110 is located above the moving path of the mounting block 104. The protective cover 110 above the moving path can effectively prevent objects falling from the top plate from hitting the moving parts, ensuring the normal operation of the equipment and the safety of personnel.

[0029] like Figure 1 As shown, a fixing plate 111 is provided on the side end of the fixing frame 101. Anchor bolts for connecting to the top of the coal mine roadway are provided on the fixing plate 111. The fixing frame 101 has mounting through holes 112 adapted to the anchor bolts. The surface of the fixing frame 101 is also coated with an anti-corrosion coating. The fixing frame 101 is fixed to the top of the roadway with anchor bolts and has an anti-corrosion coating, enhancing the stability and durability of the overall structure. It is suitable for the complex working environment of humid and highly corrosive conditions in underground coal mines.

[0030] It also includes a synchronization control module for coordinating the start-stop and speed of the electric winches 105 on both sides to achieve synchronous operation, and a synchronization control module for real-time monitoring of the position of the mounting block 104 and feeding the signal back to the synchronization control module. The synchronization control module is electrically connected to the two electric winches 105, and the displacement sensor is set on the mounting block 104.

[0031] After the device is powered on, the synchronous control module performs a self-test to confirm that the electric winches 105 on both sides, the displacement sensor, and the gas sensor 106 are all in normal working condition. The displacement sensor collects the initial position information of the mounting block 104 in real time and feeds the data back to the synchronous control module to complete the initial positioning.

[0032] The control system issues a command to activate the synchronization control module, preparing to drive the installation block 104 to move horizontally. The electric winches 105 installed on both sides of the roadway work together, pulling the installation block 104 horizontally through the pull rope 113, so that it slides smoothly along the connecting slide bar 103 horizontally set between the two vertical plates 102. The synchronization control module controls the start, stop and speed of the winches on both sides according to the preset speed and stroke to ensure balanced force and prevent jamming or tilting.

[0033] According to the preset detection cycle or manual instructions, the synchronous control module sends a control signal to start the electric winches 105 on both sides, driving one electric winch 105 to release the pull rope 113 and driving the other electric winch 105 to wind up the pull rope 113. By coordinating the start, stop and speed of the two electric winches 105, it is ensured that the pull ropes 113 on both sides are wound and released at the same speed, thereby driving the mounting block 104 to move smoothly horizontally along the connecting slide bar 103, avoiding deviation or jamming caused by uneven force; during the horizontal movement of the mounting block 104, the gas sensor 106 mounted on it continuously collects gas concentration data at different lateral positions in the roadway and uploads it to the monitoring system in real time, realizing wide-area monitoring in the spatial dimension.

[0034] As the mounting block 104 moves horizontally, the gas sensor 106 on it continuously collects gas concentration data from different horizontal areas. This data is transmitted in real time to the monitoring system for analyzing the gas distribution in the roadway, promptly identifying abnormal accumulation areas, and achieving comprehensive gas monitoring. The displacement sensor installed on the mounting block 104 monitors its horizontal displacement position in real time and feeds the signal back to the synchronous control module, forming a closed-loop control to ensure accurate positioning and stable operation.

[0035] When the mounting block 104 reaches the predetermined end of the stroke, the control system drives one electric winch 105 to release the pull rope 113 in the reverse direction and drives another electric winch 105 to simultaneously wind up the pull rope 113 in the reverse direction, so as to drive the mounting block 104 back to the starting position and start the next round of horizontal scanning detection.

[0036] The connecting sleeve 107 on the mounting block 104 has a built-in cleaning scraper 202, which automatically scrapes away coal dust or impurities adhering to the surface of the connecting slide rod 103 during horizontal sliding, ensuring smooth sliding and reducing wear.

[0037] The mounting block 104 is provided with a protective mesh cover 204 on the outside, which can prevent foreign objects from hitting the gas sensor 106; the protective cover 110 can be used to prevent falling objects.

[0038] The above are preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A gas concentration detection device for coal mine safety monitoring, comprising a fixed frame (101) installed at the top of the coal mine, characterized in that: The fixed frame (101) has vertical plates (102) on both sides of its bottom. Multiple connecting slide rods (103) are provided between the two vertical plates (102). Mounting blocks (104) are slidably mounted on the multiple connecting slide rods (103). Electric winches (105) are provided on the two vertical plates (102). The pulling ropes (113) of the two agitating winches are connected to the two ends of the mounting block (104). Gas sensors (106) are provided on the mounting block (104).

2. The gas concentration detection device for coal mine safety monitoring as described in claim 1, characterized in that: The mounting block (104) is provided with a connecting sleeve (107) that is slidably connected to the connecting slide rod (103).

3. The gas concentration detection device for coal mine safety monitoring as described in claim 2, characterized in that: The side end of the connecting sleeve (107) is also provided with an installation sleeve (201), and a cleaning scraper sleeve (202) is also provided on the installation sleeve (201).

4. The gas concentration detection device for coal mine safety monitoring as described in claim 1, characterized in that: The mounting block (104) is also provided with a fixing sleeve (203) that is sleeved on the outside of the gas sensor (106), and the fixing sleeve (203) is provided with a protective mesh cover (204) that covers the outside of the gas sensor (106).

5. The gas concentration detection device for coal mine safety monitoring as described in claim 4, characterized in that: The fixing sleeve (203) is provided with a mounting bolt (205) for screwing into the mounting block (104), and the mounting block (104) is provided with a threaded mounting hole for screwing into the mounting bolt (205).

6. The gas concentration detection device for coal mine safety monitoring as described in claim 1, characterized in that: The electric winch (105) is fixedly installed on the mounting base (108) on the outside of the vertical plate (102), and the pull rope (113) passes through the guide pulley (109) set on the vertical plate (102) and is connected to the mounting block (104).

7. The gas concentration detection device for coal mine safety monitoring as described in claim 1, characterized in that: A protective cover (110) is also provided between the two vertical plates (102), and the protective cover (110) is located above the moving path of the mounting block (104).

8. The gas concentration detection device for coal mine safety monitoring as described in claim 1, characterized in that: The fixed frame (101) is provided with a fixed plate (111) on its side end. The fixed plate (111) is provided with anchor bolts for connecting to the top of the coal mine roadway. The fixed frame (101) is provided with an installation through hole (112) adapted to the anchor bolts. The surface of the fixed frame (101) is also coated with an anti-corrosion coating.

9. The gas concentration detection device for coal mine safety monitoring as described in claim 1, characterized in that: It also includes a synchronization control module for coordinating the start-stop and speed of the electric winches (105) on both sides to achieve synchronous operation, and a synchronization control module for real-time monitoring of the position of the mounting block (104) and feeding the signal back to the synchronization control module. The synchronization control module is electrically connected to the two electric winches (105), and the displacement sensor is set on the mounting block (104).

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