CN216116971U

CN216116971U - Gas sampling and collecting device for coal mine detection

Info

Publication number: CN216116971U
Application number: CN202121977977.0U
Authority: CN
Inventors: 何军
Original assignee: Individual
Current assignee: Shanxi Yihetong Mining Technology Service Co ltd
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2022-03-22
Anticipated expiration: 2031-08-23

Abstract

The utility model discloses a gas sampling and collecting device for coal mine detection, and belongs to the technical field of gas sampling. The utility model provides a colliery is gas sample collection system for measurement, the novel nipple rectifier comprises a cylindrical shel, the barrel outer wall is equipped with the scale, be equipped with piston A in the barrel, piston A below is connected with the pull rod, barrel lower part outside cover is equipped with rotates cover A, the pull rod passes the barrel and extends to the outside with rotate cover A and is connected with the pull ring, barrel upper portion is equipped with the sleeve, gas pocket A has been seted up on sleeve upper portion, gas pocket A below is equipped with piston B, piston B below is equipped with the spring, the spring below is equipped with the filter cartridge, sleeve upper portion outside cover is equipped with the lid, the lid middle part is connected with the push rod, lid upper portion is annular equidistant a plurality of gas pockets B of having seted up. This device can the person of facilitating the use take a sample to the gas.

Description

Gas sampling and collecting device for coal mine detection

Technical Field

The utility model relates to the technical field of gas sampling, in particular to a gas sampling and collecting device for coal mine detection.

Background

The gas is a colorless and tasteless mixed gas, the main components of which are methane, carbon monoxide and the like, and is generated by ancient plants through a series of physical and chemical changes in the accumulation process, in the long geological age generated in a coal mine, because a coal bed is subjected to the action of high temperature and high pressure, the coal enters the carbonization and deterioration stage of the coal, the volatile components in the coal are reduced, fixed carbon is increased, a large amount of gas is generated and is stored in pores and cracks of the coal bed or rock stratum, and because the gas exists in a free state and an absorption state in a coal body or surrounding rock, when reaching a certain concentration, people can suffocate due to oxygen deficiency and can be burnt or exploded, so the gas sampling acquisition and the concentration detection are necessary safety measures in the coal mining process. The patent document with the prior publication number of CN212988956U provides a gas sampling and collecting device for coal mine detection, which starts different electromagnetic valves through a controller, so that three collecting branch pipelines are respectively in a dredging state, three collecting bags can collect gas in a coal mine for three times and separately store the gas, and the gas can be sampled and collected for multiple times at one time. Although the device has more beneficial effects, the following problems still exist: the device collects gas through the gasbag, can lead to the gasbag to compress the gas of collecting, brings the error to the measurement of methane, carbon monoxide concentration in the follow-up gas. In view of this, we propose a gas sampling and collecting device for coal mine detection.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

The utility model aims to provide a gas sampling and collecting device for coal mine detection, which aims to solve the problems in the background technology.

2. Technical scheme

The utility model provides a colliery is gas sample collection system for measurement, includes the barrel, the barrel outer wall is equipped with the scale, be equipped with piston A in the barrel, piston A below is connected with the pull rod, barrel lower part outside cover is equipped with and rotates cover A, the pull rod passes the barrel and extends to the outside with rotating cover A and is connected with the pull ring, barrel upper portion is equipped with the sleeve, gas pocket A has been seted up on sleeve upper portion, gas pocket A below is equipped with piston B, piston B below is equipped with the spring, the spring below is equipped with the filter cartridge, sleeve upper portion outside cover is equipped with the lid, the lid middle part is connected with the push rod, lid upper portion is the equidistant a plurality of gas pockets B of having seted up of annular.

Preferably, the piston A is connected with the cylinder in a sliding manner, the piston A is fixedly connected with the pull rod, and the pull rod is connected with the cylinder in a sliding manner.

Preferably, the rotating sleeve A is rotatably connected with the cylinder body, and the rotating sleeve A is in threaded connection with the pull rod.

Preferably, the sleeve is in threaded connection with the cylinder, the sleeve is fixedly connected with the filter box, the filter box is fixedly connected with the spring, the spring is fixedly connected with the piston B, and an adsorbent is arranged in the filter box.

Preferably, the cover body is in threaded connection with the sleeve, and the cover body is fixedly connected with the push rod.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages that:

1. according to the utility model, by arranging the rotating sleeve A and the pull rod, a user can rotate the rotating sleeve A and pull the piston A downwards through the pull rod, so that negative pressure can be formed at the upper part of the cylinder body, external gas is sucked into the cylinder body, and due to the self-locking characteristic of the threaded connection, the gas in the cylinder body cannot be compressed, the detection of gas components is influenced, and the detection precision is increased. The gas sampling device is compact in structure and reasonable in design, and is convenient for a user to sample gas.

2. According to the utility model, the filter box is arranged in the sleeve, so that the device can filter dust and moisture in gas through the adsorbent in the filter box; the sleeve is in threaded connection with the barrel, so that the filter box can be conveniently replaced, and the practicability of the device is improved; the cover body arranged by rotation can enable the push rod to push the piston B downwards, the air hole A is opened, and a user can conveniently discharge air.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a partial schematic structural view of the present invention;

the reference numbers in the figures illustrate: 1. a barrel; 2. calibration; 3. a piston A; 4. a pull rod; 5. rotating the sleeve A; 6. a pull ring; 7. a sleeve; 8. air holes A; 9. a piston B; 10. a spring; 11. a filter cartridge; 12. a cover body; 13. a push rod; 14. and air holes B.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-2, the present invention provides a technical solution:

a gas sampling and collecting device for coal mine detection comprises a cylinder body 1, wherein scales 2 are arranged on the outer wall of the cylinder body 1, a piston A3 is arranged in the cylinder body 1, a pull rod 4 is connected below a piston A3, a rotating sleeve A5 is sleeved on the outer side of the lower portion of the cylinder body 1, the pull rod 4 penetrates through the cylinder body 1 and the rotating sleeve A5 to extend to the outside and is connected with a pull ring 6, a sleeve 7 is arranged on the upper portion of the cylinder body 1, an air hole A8 is formed in the upper portion of the sleeve 7, a piston B9 is arranged below the air hole A8, a spring 10 is arranged below the piston B9, a filter box 11 is arranged below the spring 10, a cover body 12 is sleeved on the outer side of the upper portion of the sleeve 7, a push rod 13 is connected in the middle of the cover body 12, and a plurality of air holes B14 are formed in the upper portion of the cover body 12 in an annular shape and are arranged at equal intervals; by arranging the rotating sleeve A5 and the pull rod 6, a user can rotate the rotating sleeve A5 and pull the piston A3 downwards through the pull rod 4, so that the upper part of the cylinder 1 can form negative pressure to suck external air into the cylinder 1.

Specifically, the piston A3 is connected with the cylinder 1 in a sliding manner, the piston A3 is fixedly connected with the pull rod 4, and the pull rod 4 is connected with the cylinder 1 in a sliding manner, so that the pull rod 4 can slide downwards under the limit of the cylinder 1.

Further, the rotating sleeve A5 is rotatably connected with the cylinder 1, and the rotating sleeve A5 is in threaded connection with the pull rod 4, so that the rotating sleeve A5 can push the pull rod 4 to move downwards when rotating.

Still further, sleeve 7 and barrel 1 threaded connection, sleeve 7 and filter cartridge 11 are connected fixedly, and filter cartridge 11 is connected fixedly with spring 10, and spring 10 is connected fixedly with piston B9, is equipped with the adsorbent in the filter cartridge 11 for filter cartridge 11 can filter moisture and dust in the gas.

Further, the cover 12 is screwed to the sleeve 7, and the cover 12 is fixedly connected to the push rod 13, so that the piston a3 can be pushed downward by rotating the cover 12 via the push rod 13.

The working principle is as follows: when the device is used, the pull rod 4 in threaded connection with the rotating sleeve A5 can move downwards by rotating the rotating sleeve A5 at the lower part of the cylinder body 1, and the piston A3 is pulled to move downwards, so that negative pressure is formed at the upper part of the cylinder body 1, external gas pushes the piston B9 to move downwards through the gas hole B14 and is filtered by the filter box 11 to further move the upper part of the cylinder body 1, and after collection is finished, the piston B9 moves upwards under the pushing of the spring 10 to block the gas hole A8; when the collected gas needs to be discharged, the cap body 12 is moved downwards on the sleeve 7 by rotating the cap body 12, so that the push rod 13 pushes the piston B9 downwards, the air hole a8 is opened, and the gas in the cylinder body 1 can be discharged when the rotating sleeve a5 is rotated reversely.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a colliery detects uses gas sample collection system, includes barrel (1), its characterized in that: the outer wall of the cylinder body (1) is provided with scales (2), a piston A (3) is arranged in the cylinder body (1), a pull rod (4) is connected below the piston A (3), a rotating sleeve A (5) is sleeved on the outer side of the lower part of the cylinder body (1), the pull rod (4) passes through the cylinder body (1) and the rotating sleeve A (5) to extend to the outside and is connected with a pull ring (6), a sleeve (7) is arranged at the upper part of the cylinder body (1), an air hole A (8) is arranged at the upper part of the sleeve (7), a piston B (9) is arranged below the air hole A (8), a spring (10) is arranged below the piston B (9), a filter box (11) is arranged below the spring (10), a cover body (12) is sleeved outside the upper part of the sleeve (7), the middle part of the cover body (12) is connected with a push rod (13), and the upper part of the cover body (12) is annular and is provided with a plurality of air holes B (14) at equal intervals.

2. The coal mine detection gas sampling and collecting device according to claim 1, characterized in that: piston A (3) and barrel (1) sliding connection, piston A (3) is connected fixedly with pull rod (4), pull rod (4) and barrel (1) sliding connection.

3. The coal mine detection gas sampling and collecting device according to claim 1, characterized in that: the rotating sleeve A (5) is rotatably connected with the barrel body (1), and the rotating sleeve A (5) is in threaded connection with the pull rod (4).

4. The coal mine detection gas sampling and collecting device according to claim 1, characterized in that: sleeve (7) and barrel (1) threaded connection, sleeve (7) are connected fixedly with filter cartridge (11), filter cartridge (11) are connected fixedly with spring (10), spring (10) are connected fixedly with piston B (9), be equipped with the adsorbent in filter cartridge (11).

5. The coal mine detection gas sampling and collecting device according to claim 1, characterized in that: the cover body (12) is in threaded connection with the sleeve (7), and the cover body (12) is fixedly connected with the push rod (13).