A mine gas extraction device

Abstract

This utility model provides a mine gas extraction device, relating to the technical field of gas extraction. The mine gas extraction device includes a base, a cylinder, a cover, a drilling assembly, and an extraction assembly. The cylinder is fixedly installed on the base, and the cover is installed on the cylinder. The drilling assembly includes a first motor, a sliding plate, a second motor, and a drill barrel. The first motor is installed on the cover, the sliding plate is slidably disposed within the cylinder and is drivenly connected to the first motor, the second motor is installed on the sliding plate, and the drill barrel is pivotally connected to the sliding plate and is drivenly connected to the first motor. The extraction assembly includes an air pump and an air inlet pipe. The air pump is installed on the cover, the air inlet pipe is connected to the air pump, and it is inserted into the drill barrel. The air inlet pipe has a support portion and several elastic sealing rings, each with a downward-opening groove. This mine gas extraction device solves the technical problem of small-scale gas leakage caused by the axial gap between the air inlet pipe and the drill barrel in existing mine gas extraction devices.

Description

Technical Field

[0001] This utility model relates to the technical field of gas extraction, and in particular to a mine gas extraction device. Background Technology

[0002] Methane gas is a colorless, odorless gas that can burn or explode. Before coal mining, methane gas needs to be extracted.

[0003] Existing mine gas extraction devices include a housing, a slide block, a first motor, a drill barrel, a second motor, an elastic cover, a pump body, and an air inlet pipe. The housing has a sealing cylinder at the bottom. The slide block is slidably disposed inside the housing. The first motor is mounted in the housing and is drivenly connected to the slide block. The drill barrel is rotatably connected to the slide block. The second motor is mounted in the slide block and is drivenly connected to the drill barrel. The elastic cover is mounted in the drill barrel. The pump body is mounted in the housing, and the air inlet pipe passes through the drill barrel. While the elastic cover prevents gas leakage from the air inlet sealing cylinder into the housing, a small amount of gas can still leak into the drill barrel due to the axial gap between the air inlet pipe and the drill barrel.

[0004] In the process of implementing this embodiment, the inventors discovered at least the following problems:

[0005] Existing mine gas extraction devices may experience minor gas leaks due to the axial gap between the air intake pipe and the drill barrel. Utility Model Content

[0006] The purpose of this utility model is to provide a mine gas extraction device that solves the technical problem that existing mine gas extraction devices may cause a small amount of gas leakage due to the axial gap between the air inlet pipe and the drill barrel.

[0007] Utility model solution:

[0008] This utility model provides a mine gas extraction device, including a base, a cylinder, a cover, a drilling assembly, and a gas extraction assembly. The cylinder is fixedly installed on the base, and the cover is installed on the cylinder. The drilling assembly includes a first motor, a sliding plate, a second motor, and a drill barrel. The first motor is installed on the cover, the sliding plate is slidably disposed in the cylinder and is drivenly connected to the first motor, the second motor is installed on the sliding plate, and the drill barrel is pivotally connected to the sliding plate and is drivenly connected to the first motor. The gas extraction assembly includes an air pump and an air inlet pipe. The air pump is installed on the cover, the air inlet pipe is connected to the air pump, and is inserted into the drill barrel. The air inlet pipe has a support portion and several elastic sealing rings, and the elastic sealing rings have downward-opening grooves. The drill barrel has a sealing cover and a circular sealing cap. The sealing cover is fixedly connected to the drill barrel, and the circular sealing cap is threadedly connected to the drill barrel.

[0009] Furthermore, the drill barrel is provided with a limiting sleeve, which is fitted onto the elastic sealing ring.

[0010] Furthermore, the bottom of several of the elastic sealing rings is provided with a lower rigid sealing ring, and the top of the rings is provided with an upper rigid sealing ring.

[0011] Furthermore, the annular sealing cover is equipped with a toggle handle.

[0012] Furthermore, the sealing cover is provided with a skirt, and the base is provided with an annular groove.

[0013] Furthermore, the bottom of the skirt is provided with several sealing strips.

[0014] Furthermore, the base is equipped with pulleys.

[0015] Beneficial effects:

[0016] This invention provides a mine gas extraction device. In operation, a first motor drives a sliding plate to move within the cylinder, while a second motor drives the drill barrel to rotate. When the drill barrel reaches a designated position, a sealing cover seals the base, allowing gas to enter the drill barrel. An air pump then extracts the gas from the drill barrel through the air inlet pipe. As the sliding plate moves downwards, a circular sealing cover presses against several elastic sealing rings. These rings squeeze against each other, and due to the groove design, they expand, further compressing the air inlet pipe and enhancing the axial seal between the air inlet pipe and the drill barrel. Therefore, this mine gas extraction device effectively reduces the axial gap between the air inlet pipe and the drill barrel, minimizing gas leakage. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the mine gas extraction device provided in this embodiment;

[0019] Figure 2 This is a schematic diagram of the structure of a mine gas extraction device provided in this embodiment;

[0020] Figure 3 This is a cross-sectional view of a portion of the mine gas extraction device provided in this embodiment;

[0021] Figure 4 This is a schematic diagram of the structure of a mine gas extraction device provided in this embodiment;

[0022] Figure 5 This is a schematic diagram of the structure of the mine gas extraction device provided in this embodiment.

[0023] icon:

[0024] 100 - Base; 110 - Circular groove; 120 - Pulley;

[0025] 200-Cylinder;

[0026] 300-Cap;

[0027] 400 - Drilling assembly; 410 - First motor; 420 - Slide plate; 430 - Second motor; 440 - Drill barrel; 441 - Sealing cover; 442 - Circular sealing cover; 443 - Toggle handle; 444 - Limiting sleeve; 445 - Skirt; 446 - Sealing strip;

[0028] 500 - Air extraction assembly; 510 - Air pump; 520 - Air inlet pipe; 521 - Support part; 530 - Elastic sealing ring; 531 - Groove; 540 - Upper rigid sealing ring; 550 - Lower rigid sealing ring. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] Furthermore, terms such as "horizontal" and "vertical" do not imply that the components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but can be slightly tilted. In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0035] This embodiment provides a mine gas extraction device. Please refer to [reference needed]. Figure 1-5As shown, the system includes a base 100, a cylinder 200, a cover 300, a drilling assembly 400, and a suction assembly 500. The cylinder 200 is fixedly installed on the base 100, and the cover 300 is installed on the cylinder 200. The drilling assembly 400 includes a first motor 410, a sliding plate 420, a second motor 430, and a drill barrel 440. The first motor 410 is installed on the cover 300, the sliding plate 420 is slidably disposed inside the cylinder 200 and is connected to the first motor 410 in a transmission manner, the second motor 430 is installed on the sliding plate 420, and the drill barrel 440 is pivotally connected to the sliding plate 420. It is connected to the first motor 410 for transmission; the air extraction assembly 500 includes an air pump 510 and an air inlet pipe 520. The air pump 510 is installed on the cover 300, and the air inlet pipe 520 is connected to the air pump 510 and inserted into the drill barrel 440; the air inlet pipe 520 is provided with a support part 521 and a plurality of elastic sealing rings 530, and the elastic sealing rings 530 are provided with a groove 531 with the opening facing downward; the drill barrel 440 is provided with a sealing cover 441 and a circular sealing cover 442; the sealing cover 441 is fixedly connected to the drill barrel 440, and the circular sealing cover 442 is threadedly connected to the drill barrel 440.

[0036] Specifically, the base 100 supports the cylinder 200, which provides working space; the cover 300 seals the cylinder 200 and facilitates the installation of the drilling assembly 400 and the extraction assembly 500; the drilling assembly 400 drills the drill barrel 440 into a designated area of ​​the coal seam; the first motor 410 drives the sliding plate 420 up and down via a screw; two limiting posts are provided inside the cylinder 200 to ensure stable up and down movement of the sliding plate 420; the second motor 430 and the drill barrel 440 are driven by gears; the extraction assembly 500 extracts gas from the drill barrel 440, and the air pump 510 is used for lifting... The intake pipe 520 is a rigid pipe, and the support part 521 is welded to the intake pipe 520. There are 16 elastic sealing rings 530, which are equidistantly arranged on the intake pipe 520. The groove 531 can make the elastic sealing rings 530 fit more tightly with the intake pipe 520 when under pressure. The sealing cover 441 of the drill barrel 440 prevents gas from entering the barrel 200. The drill barrel 440 is provided with an air inlet, which is located below the sealing cover 441. The circular sealing cover 442 is provided so that when the drill barrel 440 moves downward, it will press several elastic sealing rings 530 together. During use, the first motor 410 drives the slide plate 420 to move within the cylinder 200, and the second motor 430 drives the drill barrel 440 to rotate. When the drill barrel 440 drills to the designated position, the sealing cover 441 seals the base 100, and gas enters the drill barrel 440. The air pump 510 extracts the gas cylinder from the drill barrel 440 through the air inlet pipe 520. When the slide plate 420 moves downward, the annular sealing cover 442 presses against several elastic sealing rings 530. The several elastic sealing rings 530 squeeze against each other. Due to the setting of the groove 531, the elastic sealing rings 530 expand at this time, squeezing the air inlet pipe 520, thereby enhancing the axial seal between the air inlet pipe 520 and the drill barrel 440.

[0037] In this embodiment, the drill barrel 440 is provided with a limiting cylinder 444, which is fitted onto the elastic sealing ring 530.

[0038] Specifically, the setting of the limiting cylinder 444 increases the axial sealing area of ​​the intake pipe 520, thereby improving the axial sealing performance of the intake pipe 520.

[0039] In this embodiment, a plurality of elastic sealing rings 530 are provided with a lower rigid sealing ring 550 at their bottom and an upper rigid sealing ring 540 at their top.

[0040] Specifically, the upper rigid sealing ring 540 and the lower rigid sealing ring 550 are designed to subject several elastic sealing rings 530 to uniform compressive force, thereby enhancing the axial sealing effect of the intake pipe 520.

[0041] In this embodiment, the annular sealing cover 442 is provided with a toggle handle 443.

[0042] Specifically, the design of the lever 443 facilitates the installation of the circular sealing cover 442 by the operator.

[0043] In this embodiment, the sealing cover 441 is provided with a skirt 445, and the base 100 is provided with an annular groove 110.

[0044] Specifically, the skirt 445 increases the sealing area between the sealing cover 441 and the base 100, thus better preventing gas from entering the cylinder 200.

[0045] In this embodiment, the bottom of the skirt 445 is provided with several sealing strips 446.

[0046] Specifically, the sealing strip 446 reduces the impact of impurities on the sealing cover 441 on the surface of the annular groove 110. Impurities remain between the two sealing strips 446 and will not affect the seal.

[0047] In this embodiment, the base 100 is provided with pulleys 120.

[0048] Specifically, pulley 120 is equipped with four pulleys to facilitate the operation of the mine gas extraction device by the workers.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A mine gas extraction device, characterized by, Includes a base (100), a cylinder (200), a cover (300), a drilling assembly (400), and an air extraction assembly (500); The cylindrical body (200) is fixedly installed on the base (100), and the cover (300) is installed on the cylindrical body (200); The drilling assembly (400) includes a first motor (410), a slide plate (420), a second motor (430), and a drill barrel (440). The first motor (410) is installed on the cover (300), the slide plate (420) is slidably disposed in the cylinder (200) and is drivenly connected to the first motor (410), the second motor (430) is installed on the slide plate (420), and the drill barrel (440) is pivotally connected to the slide plate (420) and is drivenly connected to the second motor (430); The air extraction assembly (500) includes an air pump (510) and an air inlet pipe (520). The air pump (510) is mounted on the cover (300), and the air inlet pipe (520) is connected to the air pump (510) and inserted into the drill barrel (440). The air intake pipe (520) is provided with a support (521) and a plurality of elastic sealing rings (530), and the elastic sealing rings (530) are provided with a groove (531) with an opening facing downward. The drill barrel (440) is provided with a sealing cover (441) and a circular sealing cover (442). The sealing cover (441) is fixedly connected to the drill barrel (440), and the annular sealing cover (442) is threadedly connected to the drill barrel (440).

2. The mine gas extraction device according to claim 1, characterized in that, The drill barrel (440) is provided with a limiting sleeve (444), which is fitted onto the elastic sealing ring (530).

3. The mine gas extraction device according to claim 2, characterized in that, The bottom of several of the elastic sealing rings (530) is provided with a lower rigid sealing ring (550), and the top of the ring is provided with an upper rigid sealing ring (540).

4. A mine gas extraction device according to claim 3, characterized in that, The annular sealing cap (442) is provided with a toggle handle (443).

5. The mine gas extraction device according to claim 4, characterized in that, The sealing cover (441) is provided with a skirt (445), and the base (100) is provided with an annular groove (110).

6. The mine gas extraction device according to claim 5, characterized in that, The bottom of the skirt (445) is provided with several sealing strips (446).

7. The mine gas extraction device according to claim 6, characterized in that, The base (100) is equipped with pulleys (120).

Images