Gas concentration detection device for coal mine safety

Abstract

The utility model discloses a gas concentration detection device for coal mine safety, which comprises an equipment body, one end of the equipment body is provided with a gas inlet, the gas inlet is in threaded connection with a filter structure, and the filter structure comprises a filter bin, a suction fan and a dustproof net plate. One end of the filtering bin is connected and communicated with the air inlet through threads, the other end of the filtering bin is provided with an annular air inlet window, the dustproof net plate is installed on the air inlet window, two groups of partition plates are arranged in the filtering bin at equal intervals, and air holes are evenly distributed in the partition plates; the two sets of partition plates divide the filter bin into an air suction cavity, a first filter cavity and a second filter cavity, a mounting frame is arranged in the air suction cavity, the air suction fan is arranged on the mounting frame, the first filter cavity is filled with a water absorption material, and the second filter cavity is filled with a soda lime material. The utility model relates to the technical field of gas detectors, and particularly provides a gas concentration detection device for coal mine safety.

Description

Technical Field

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

[0002] Methane is a colorless, odorless, and tasteless gas with a relative density lower than air, making it easy to diffuse and penetrate. It can cause explosions under open flame or high temperature conditions, posing a significant threat to the production safety of coal mines. Therefore, methane concentration detection devices are used for monitoring and protection.

[0003] Current detection methods typically involve workers using handheld gas concentration detectors. However, handheld devices are inconvenient for continuous, long-term testing. Furthermore, the air in coal mines contains a large amount of dust, which easily adheres to the probe, affecting the accuracy of the detection. Additionally, moisture and carbon dioxide in the air also affect the accuracy of the data. Utility Model Content

[0004] The technical problem this invention aims to solve is that handheld continuous long-term testing is inconvenient, the air in coal mines contains a lot of dust that easily adheres to the probe, and the moisture and carbon dioxide in the air also affect the accuracy of the data.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: This utility model proposes a gas concentration detection device for coal mine safety, comprising a device body. One end of the device body is provided with an air inlet, and a filter structure is threadedly connected to the air inlet. The filter structure includes a filter chamber, an intake fan, and a dustproof mesh plate. One end of the filter chamber is threadedly connected to the air inlet, and the other end of the filter chamber is provided with an annular air inlet window. The dustproof mesh plate is installed on the air inlet window. Two sets of partition plates are equidistantly arranged inside the filter chamber, and air vents are evenly distributed on the partition plates. The two sets of partition plates divide the filter chamber into an intake chamber, a first filter chamber, and a second filter chamber. A mounting frame is provided inside the intake chamber, and the intake fan is mounted on the mounting frame. The first filter chamber is filled with absorbent material, and the second filter chamber is filled with sodium lime material.

[0006] Preferred technical solution 1: It also includes a cleaning ring, the cleaning ring is provided with a brush plate and the brush plate is provided with rubber bristles, the air inlet is provided with a slot and a limiting recessed ring, and the inner side wall of the cleaning ring is provided with a protrusion corresponding to the slot.

[0007] Preferred technical solution 2: The bottom of the device body is provided with a positioning block and also includes a mounting base. The mounting base is provided with a sliding groove, and the positioning block is slidably disposed in the sliding groove.

[0008] Preferred technical solution 3: The positioning block is provided with spring pins on both sides, and the side wall of the mounting base is provided with pin holes corresponding to the spring pins.

[0009] Preferred technical solution four: The two side walls of the mounting base are provided with straps.

[0010] Preferred technical solution five: An inspection door is hinged to one side of the filter chamber.

[0011] The gas concentration detection device for coal mine safety proposed in this utility model has the following beneficial effects achieved by adopting the above structure:

[0012] (1) The filter chamber, air intake fan and dust screen can filter dust, water vapor and carbon dioxide in the air, reducing the impact on the detection. At the same time, the cleaning ring can be rotated to clean the dust screen, which is simple and convenient to operate.

[0013] (2) The positioning block and the mounting base are installed together, and the device is tied to the arm with straps for easy carrying and operation. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the overall structure of a gas concentration detection device for coal mine safety proposed in this utility model;

[0016] Figure 2 An explosion diagram illustrating a gas concentration detection device for coal mine safety proposed in this utility model. Figure 1 ;

[0017] Figure 3 An explosion diagram illustrating a gas concentration detection device for coal mine safety proposed in this utility model. Figure 2 ;

[0018] Figure 4 This is a schematic diagram of the filter structure of a gas concentration detection device for coal mine safety proposed in this utility model.

[0019] The components are as follows: 1. Equipment body; 2. Air inlet; 3. Filter structure; 4. Filter chamber; 5. Suction fan; 6. Dustproof mesh plate; 7. Air inlet window; 8. Divider plate; 9. Ventilation hole; 10. Suction chamber; 11. Filter chamber one; 12. Filter chamber two; 13. Mounting bracket; 14. Cleaning ring; 15. Brush plate; 16. Rubber bristles; 17. Slot; 18. Limiting concave ring; 19. Protrusion; 20. Positioning block; 21. Mounting base; 22. Sliding groove; 23. Spring pin; 24. Strap; 25. Inspection door. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0022] Example 1

[0023] like Figures 1-4 As shown, the technical solution adopted by this utility model is as follows: A gas concentration detection device for coal mine safety includes a device body 1. One end of the device body 1 is provided with an air inlet 2, and a filter structure 3 is connected to the air inlet 2 by a thread. The filter structure 3 includes a filter chamber 4, an air intake fan 5, and a dustproof mesh plate 6. One end of the filter chamber 4 is connected to the air inlet 2 by a thread, and the other end of the filter chamber 4 is provided with an annular air intake window 7. The dustproof mesh plate 6 is installed on the air intake window 7. Two sets of partition plates 8 are equidistantly arranged inside the filter chamber 4. The filter chamber 4 is divided into three chambers: an air intake chamber 10, a first filter chamber 11, and a second filter chamber 12. The air intake chamber 10 is equipped with a mounting bracket 13 and an air intake fan 5 is mounted on the mounting bracket 13. The first filter chamber 11 is filled with water-absorbing material to absorb moisture in the air. The second filter chamber 12 is filled with soda lime material to absorb carbon dioxide in the air. A maintenance door 25 is hinged to one side of the filter chamber 4 for cleaning and replacing the consumables in the first filter chamber 11 and the second filter chamber 12.

[0024] like Figure 4 As shown, it also includes a cleaning ring 14, which is equipped with a brush plate 15 and rubber bristles 16. The air inlet 7 is equipped with a slot 17 and a limiting recess 18. The inner side wall of the cleaning ring 14 is equipped with a protrusion 19 corresponding to the slot 17. When in use, it is inserted into the slot 17 through the recess 18 and rotated in the limiting recess 18. During the rotation, the rubber bristles 16 clean the dust on the surface of the dustproof mesh plate 6.

[0025] Example 2

[0026] Based on Example 1, such as Figures 1-3As shown, the bottom of the device body 1 is provided with a positioning block 20 and a mounting base 21. The mounting base 21 is provided with a sliding groove 22, and the positioning block 20 is slidably disposed in the sliding groove 22. The positioning block 20 is provided with spring pins 23 on both sides. The side wall of the mounting base 21 is provided with pin holes corresponding to the spring pins 23, so as to fix the device body 1 on the mounting base 21. The side walls of the mounting base 21 are provided with straps 24, which are used to bind the device to the arm for easy carrying and operation.

[0027] In practical use, the device is strapped to the arm with strap 24 for easy carrying and operation. The main body 1 is inserted into the sliding groove 22 by positioning block 20 and fixed by spring pin 23 and pin hole. In practical use, external air is drawn into the main body 1 by suction fan 5. The air passes through dust screen 6 to filter dust. The water-absorbing material in filter chamber 11 absorbs moisture in the air, and the soda lime material in filter chamber 2 12 absorbs carbon dioxide in the air. After a period of use, the dust screen 6 is cleaned by rotating cleaning ring 14 to drive rubber bristles 16. The water-absorbing material and soda lime material are replaced by opening maintenance door 25.

[0028] 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, material, 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 process, method, material, or apparatus.

[0029] 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 concentration detection device for coal mine safety, comprising a device body (1), characterized in that: The device body (1) has an air inlet (2) at one end, and a filter structure (3) is threadedly connected to the air inlet (2). The filter structure (3) includes a filter chamber (4), an intake fan (5), and a dustproof mesh plate (6). One end of the filter chamber (4) is threadedly connected to the air inlet (2), and the other end of the filter chamber (4) has an annular air inlet window (7). The dustproof mesh plate (6) is installed on the air inlet window (7). Two sets of partition plates (8) are equidistantly arranged inside the filter chamber (4), and air vents (9) are evenly distributed on the partition plates (8). The two sets of partition plates (8) divide the filter chamber (4) into an air intake chamber (10), a first filter chamber (11), and a second filter chamber (12). The air intake chamber (10) is provided with a mounting frame (13), and an air intake fan (5) is mounted on the mounting frame (13). The first filter chamber (11) is filled with water-absorbing material, and the second filter chamber (12) is filled with sodium lime material.

2. The gas concentration detection device for coal mine safety according to claim 1, characterized in that: It also includes a cleaning ring (14), which has a brush plate (15) and rubber bristles (16) on it. The air inlet (7) has a slot (17) and a limiting recess (18). The inner wall of the cleaning ring (14) has a protrusion (19) corresponding to the slot (17).

3. A gas concentration detection device for coal mine safety according to any one of claims 1 to 2, characterized in that: The bottom of the device body (1) is provided with a positioning block (20) and also includes a mounting base (21). The mounting base (21) is provided with a sliding groove (22), and the positioning block (20) is slidably disposed in the sliding groove (22).

4. The gas concentration detection device for coal mine safety according to claim 3, characterized in that: The positioning block (20) is provided with spring pins (23) on both sides, and the side wall of the mounting base (21) is provided with pin holes corresponding to the spring pins (23).

5. A gas concentration detection device for coal mine safety according to claim 4, characterized in that: The mounting base (21) has straps (24) on both sides.

6. The gas concentration detection device for coal mine safety according to claim 1, characterized in that: The filter chamber (4) is hinged to one side with an inspection door (25).

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