Coal mine confined space gas collecting and measuring device

Abstract

The utility model discloses a coal mine confined space gas collecting and measuring device, and relates to the technical field of coal mine confined space gas collecting and measuring, the coal mine confined space gas collecting and measuring device comprises a multi-gas detector, a gas inlet pipe is integrally formed on the multi-gas detector, and a filter screen is installed on the inner wall of the gas inlet pipe; a cleaning assembly for preventing the filter screen from being blocked is arranged on one side of the air inlet pipe; according to the multi-gas detector, the filter screen is arranged to filter air entering the multi-gas detector through the air inlet pipe, after the multi-gas detector is used, the pipe body is reset, the nylon wire is pulled, the rotating shaft is driven to rotate through the winding roller, the hanging rod and the turbine blade set are made to rotate, dust on the filter screen is cleaned, meanwhile, the turbine blade set forms suction force, and the dust cleaned from the filter screen is extracted out; the cleaning effect is improved, the surface of one side, where dust is attached, of the filter screen is not smooth, so that the filter screen vibrates in the cleaning process, the cleaning effect is better in cooperation with the suction force of the turbine blade set, and the subsequent dustproof effect of the filter screen is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of gas collection and measurement in a confined space of a coal mine, in particular to a gas collection and measurement device in a confined space of a coal mine. Background Art

[0002] Coal seam spontaneous combustion fire monitoring and early prediction are the foundation of coal mine fire prevention, prediction, and treatment, and are the key to mine fire prevention and firefighting. Accurate and timely early prediction of coal seam spontaneous combustion fire gases in coal mines allows for timely, accurate, and effective preventive measures to prevent spontaneous combustion fires and avoid accidents.

[0003] Gas collection and measurement in confined spaces in coal mines is typically performed using multi-gas detectors. However, dust interference is a common problem. Mining activities generate large amounts of dust, which can interfere with sampling equipment and affect sampling accuracy. For example, dust can clog sampling probes or contaminate sensors, leading to inaccurate measurement results. Simply using a filter can affect subsequent intake air sampling due to the filter's limited dust holding capacity, necessitating prompt cleaning of the filter.

[0004] In view of this, a coal mine confined space gas collection and measurement device is provided to overcome the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a gas collection and measurement device for a confined space in a coal mine, so as to solve the problems raised in the above-mentioned background technology.

[0006] To solve the above technical problems, the utility model provides a coal mine confined space gas collection and measurement device, including a multi-gas detector, an air intake pipe integrally formed on the multi-gas detector, a filter installed on the inner wall of the air intake pipe, and a cleaning component provided on one side of the air intake pipe to prevent the filter from being blocked;

[0007] The cleaning assembly includes a tube body that is magnetically attracted to the side of the intake pipe away from the multi-gas detector, the inner wall of the tube body is rotatably connected to a turbine blade group, a rotating shaft is installed in the middle of the turbine blade group, one end and the outer wall of the rotating shaft are respectively installed with a hanging rod and a winding roller, a nylon wire connected to the tube body is wound around the winding roller, a limiting plate is installed on the nylon wire, and a compression spring is installed between the limiting plate and the inner wall of the tube body and is sleeved on the outside of the nylon wire.

[0008] Furthermore, a silicone pad is installed on one side of the hanging rod, and the silicone pad is in contact with the side of the filter away from the multi-gas detector.

[0009] Furthermore, a finger ring is installed at one end of the nylon line, and anti-slip particles are integrally formed on the inner wall of the finger ring.

[0010] Furthermore, a circular ring is integrally formed on the turbine blade assembly, an annular limiting groove adapted to the circular ring is opened on the inner wall of the tube body, and the outer wall of the circular ring is rotatably connected to the inner wall of the annular limiting groove.

[0011] Furthermore, the inner wall of the annular limiting groove is provided with a plurality of equally spaced embedding grooves, and balls are embedded in the embedding grooves, and the balls are rollingly connected to the embedding grooves and the outer wall of the ring.

[0012] Furthermore, a sealing cover is magnetically attracted on the side of the turbine blade group away from the air inlet pipe.

[0013] Furthermore, the compression spring is made of stainless steel.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The multi-gas detector can simultaneously detect multiple gases such as methane, carbon monoxide, carbon dioxide, and oxygen. Before use, the tube body is removed and a filter is set to filter the air entering the multi-gas detector through the intake pipe to prevent the large amount of dust generated during mining activities from clogging the intake pipe and contaminating the sensors of the multi-gas detector, resulting in inaccurate measurement results. After use, the tube body is reset and the nylon line is pulled. The winding roller drives the rotating shaft to rotate, causing the hanging rod and the turbine blade group to rotate. The rotation of the turbine blade group cleans the dust attached to the side of the filter away from the multi-gas detector. At the same time, the turbine blade group creates suction to extract the dust cleaned from the filter, improving the cleaning effect. The surface of the side of the filter with dust attached is not smooth, so it will cause the filter to vibrate during the cleaning process, which in turn cooperates with the suction of the turbine blade group to make the cleaning effect better. By utilizing the elastic reset principle of the compression spring and the use of the limit plate, the nylon line can be pulled repeatedly, thereby improving the cleaning efficiency and effect, and ensuring the dust-proof effect of the subsequent filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a cleaning component in a gas collection and measurement device for a confined space in a coal mine according to the present invention;

[0017] Figure 2 This is a schematic structural diagram of an annular limit groove in a gas collection and measurement device for a confined space in a coal mine according to the present invention;

[0018] Figure 3 This is a schematic structural diagram of a circular ring in a gas collection and measurement device for a confined space in a coal mine according to the present invention;

[0019] Figure 4The utility model is a schematic diagram of the overall structure of a gas collection and measurement device for a confined space in a coal mine.

[0020] In the picture:

[0021] 1. Multi-gas detector; 2. Inlet pipe; 3. Filter;

[0022] 4. Cleaning assembly; 401. Tube; 402. Turbine blade assembly; 403. Rotating shaft; 404. Hanging rod; 405. Winding roller; 406. Nylon line; 407. Limiting plate; 408. Compression spring;

[0023] 5. Silicone pad; 6. Finger ring; 7. Circular ring; 8. Annular limit groove; 9. Sealing cover. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figures 1-4 , the utility model provides a technical solution:

[0026] See Figures 1-4 As shown, a gas collection and measurement device for a confined space in a coal mine includes a multi-gas detector 1, an air intake pipe 2 integrally formed on the multi-gas detector 1, a filter 3 installed on the inner wall of the air intake pipe 2, and a cleaning component 4 provided on one side of the air intake pipe 2 to prevent the filter 3 from being blocked;

[0027] The cleaning assembly 4 includes a tube body 401 that is magnetically attracted to the side of the intake pipe 2 away from the multi-gas detector 1. The inner wall of the tube body 401 is rotatably connected to a turbine blade group 402. A rotating shaft 403 is installed in the middle of the turbine blade group 402. A hanging rod 404 and a winding roller 405 are respectively installed on one end and the outer wall of the rotating shaft 403. A nylon line 406 plugged into the tube body 401 is wound around the winding roller 405. A limit plate 407 is installed on the nylon line 406. A compression spring 408 is installed between the limit plate 407 and the inner wall of the tube body 401 and is sleeved on the outside of the nylon line 406.

[0028] The turbine blade group 402 is integrally formed with a circular ring 7, and the inner wall of the tube body 401 is provided with an annular limiting groove 8 that is compatible with the circular ring 7, and the outer wall of the circular ring 7 is rotatably connected to the inner wall of the annular limiting groove 8; by providing the circular ring 7 and the annular limiting groove 8, the rotation of the turbine blade group 402 in the tube body 401 is facilitated, and the turbine blade group 402 is prevented from separating from the tube body 401; the inner wall of the annular limiting groove 8 is provided with a plurality of equally spaced embedding grooves, and balls are embedded in the embedding grooves. The balls are rollingly connected with the embedding grooves and the outer wall of the circular ring 7. By providing the balls, the friction between the circular ring 7 and the annular limiting groove 8 is reduced, thereby ensuring that the rotation process of the turbine blade group 402 in the tube body 401 is smoother, thereby ensuring a better dust collection effect;

[0029] The multi-gas detector 1 can detect methane, carbon monoxide, carbon dioxide, oxygen and other gases at the same time. Before use, remove the tube body 401 and set the filter 3 to filter the air entering the multi-gas detector 1 through the air intake pipe 2 to avoid the problem of a large amount of dust generated during mining activities blocking the air intake pipe 2 and causing the sensor of the multi-gas detector 1 to be contaminated and causing inaccurate measurement results. After use, reset the tube body 401, pull the nylon line 406, and drive the rotating shaft 403 to rotate through the winding roller 405, so that the hanging rod 404 and the turbine blade group 402 rotate, and the rotation of the turbine blade group 402 The filter 3 is dynamically cleaned away from the dust attached to one side of the multi-gas detector 1. At the same time, the turbine blade group 402 forms suction to extract the dust cleaned from the filter 3, thereby improving the cleaning effect. The surface of one side of the filter 3 with dust attached is not smooth, so the filter 3 will vibrate during the cleaning process, and then cooperate with the suction of the turbine blade group 402 to make the cleaning effect better. The elastic reset principle of the compression spring 408 and the use of the limit plate 407 can be used to repeatedly pull the nylon line 406, thereby improving the cleaning efficiency and effect, and ensuring the subsequent dust-proof effect of the filter 3.

[0030] Furthermore, a silicone pad 5 is installed on one side of the hanging rod 404, and the silicone pad 5 is in contact with the side of the filter 3 away from the multi-gas detector 1; by providing the silicone pad 5, when cleaning the dust attached to the outside of the filter 3, hard contact between the hanging rods 404 is avoided, ensuring that the filter 3 is not easily damaged during the cleaning process, thereby extending the service life of the filter 3; a finger ring 6 is installed at one end of the nylon line 406, and the inner wall of the finger ring 6 is integrally formed with anti-slip particles. By providing the finger ring 6, it is not only convenient for people to pull the nylon line 406 by hand, but also avoids the problem that the nylon line 406 is completely pulled into the tube body 401 and is not easy to be pulled outside the tube body 401; thereby ensuring that the operation is more convenient and quick, and by providing the anti-slip particles, the friction between the human hand and the finger ring 6 is increased, thereby avoiding the phenomenon of slipping out of the hand.

[0031] Furthermore, a sealing cover 9 is magnetically attracted on the side of the turbine blade group 402 away from the intake pipe 2. By setting the sealing cover 9, the tube body 401 and the interior of the intake pipe 2 are protected from dust, thereby preventing dust from entering the interior of the intake pipe 2 when not in use and affecting the subsequent measurement accuracy of the multi-gas detector 1; the compression spring 408 is made of stainless steel, which is not easily corroded and damaged. By setting the compression spring 408 to be made of stainless steel, the service life of the compression spring 408 is extended.

[0032] Working principle:

[0033] The multi-gas detector 1 can detect methane, carbon monoxide, carbon dioxide, oxygen and other gases at the same time. Before use, remove the tube body 401 and set the filter 3 to filter the air entering the multi-gas detector 1 through the air intake pipe 2 to avoid the problem of a large amount of dust generated during mining activities blocking the air intake pipe 2 and causing the sensor of the multi-gas detector 1 to be contaminated and causing inaccurate measurement results. After use, reset the tube body 401, pull the nylon line 406, and drive the rotating shaft 403 to rotate through the winding roller 405, so that the hanging rod 404 and the turbine blade group 402 rotate, and the rotation of the turbine blade group 402 The filter 3 is dynamically cleaned away from the dust attached to one side of the multi-gas detector 1. At the same time, the turbine blade group 402 forms suction to extract the dust cleaned from the filter 3, thereby improving the cleaning effect. The surface of one side of the filter 3 with dust attached is not smooth, so the filter 3 will vibrate during the cleaning process, and then cooperate with the suction of the turbine blade group 402 to make the cleaning effect better. The elastic reset principle of the compression spring 408 and the use of the limit plate 407 can be used to repeatedly pull the nylon line 406, thereby improving the cleaning efficiency and effect, and ensuring the subsequent dust-proof effect of the filter 3.

[0034] By providing the circular ring 7 and the annular limiting groove 8, the rotation of the turbine blade group 402 in the tube body 401 is facilitated, and at the same time, the turbine blade group 402 is prevented from separating from the tube body 401; by providing the ball bearings, the friction between the circular ring 7 and the annular limiting groove 8 is reduced, thereby ensuring that the rotation process of the turbine blade group 402 in the tube body 401 is smoother, thereby ensuring a better dust collection effect.

[0035] By setting a silicone pad 5, when cleaning the dust attached to the outside of the filter 3, hard contact between the hanging rods 404 is avoided, ensuring that the filter 3 is not easily damaged during the cleaning process, thereby extending the service life of the filter 3; by setting a sealing cover 9, the tube body 401 and the interior of the air intake pipe 2 are dustproof, avoiding dust from entering the interior of the air intake pipe 2 when not in use and affecting the subsequent measurement accuracy of the multi-gas detector 1; stainless steel is not easily corroded and damaged, and by setting the compression spring 408 to be made of stainless steel, the service life of the compression spring 408 is extended.

Claims

1. A gas collection and measurement device for a confined space in a coal mine, comprising a multi-gas detector (1), wherein an air inlet pipe (2) is integrally formed on the multi-gas detector (1), and characterized in that: A filter screen (3) is installed on the inner wall of the air intake pipe (2), and a cleaning component (4) is provided on one side of the air intake pipe (2) to prevent the filter screen (3) from being blocked; The cleaning assembly (4) comprises a tube body (401) that is magnetically attracted to a side of the air inlet pipe (2) away from the multi-gas detector (1); the inner wall of the tube body (401) is rotatably connected to a turbine blade group (402); a rotating shaft (403) is installed in the middle of the turbine blade group (402); a hanging rod (404) and a winding roller (405) are respectively installed on one end and the outer wall of the rotating shaft (403); a nylon line (406) plugged into the tube body (401) is wound around the winding roller (405); a limiting plate (407) is installed on the nylon line (406); and a compression spring (408) is installed between the limiting plate (407) and the inner wall of the tube body (401) and is sleeved on the outside of the nylon line (406).

2. The coal mine confined space gas collection and measurement device according to claim 1, characterized in that: A silicone pad (5) is installed on one side of the hanging rod (404), and the silicone pad (5) is in contact with the side of the filter screen (3) away from the multi-gas detector (1).

3. The coal mine confined space gas collection and measurement device according to claim 2, characterized in that: A finger ring (6) is installed at one end of the nylon line (406), and the inner wall of the finger ring (6) is integrally formed with anti-slip particles.

4. The coal mine confined space gas collection and measurement device according to claim 3, characterized in that: A circular ring (7) is integrally formed on the turbine blade group (402), and an annular limiting groove (8) adapted to the circular ring (7) is provided on the inner wall of the tube body (401), and the outer wall of the circular ring (7) is rotatably connected to the inner wall of the annular limiting groove (8).

5. The coal mine confined space gas collection and measurement device according to claim 4, characterized in that: The inner wall of the annular limiting groove (8) is provided with a plurality of equally spaced embedding grooves, and balls are embedded in the embedding grooves. The balls are connected to the embedding grooves and the outer wall of the ring (7) in a rolling manner.

6. The coal mine confined space gas collection and measurement device according to claim 5, characterized in that: A sealing cover (9) is magnetically attracted to the side of the turbine blade group (402) away from the air inlet pipe (2).

7. The coal mine confined space gas collection and measurement device according to claim 6, characterized in that: The compression spring (408) is made of stainless steel.

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