Coal mine gas extraction device

Abstract

The utility model belongs to the technical field of coal mine gas extraction, and particularly relates to a coal mine gas extraction device which comprises a base, and adjustable roller plate structures are hinged to the two sides of the base respectively. The top face of the base is fixedly connected with a shell, the inner side of the shell is vertically and slidably connected with a sliding seat, the shell is provided with a sliding seat driving structure, the sliding seat driving structure is in transmission connection with the sliding seat, the inner side of the middle of the sliding seat is rotationally connected with a drilling cylinder structure, the sliding seat is provided with a drilling cylinder driving structure, and the drilling cylinder driving structure is in transmission connection with the drilling cylinder structure. The top end of the sealing cylinder penetrates through the base. The drilling cylinder structure vertically corresponds to the sealing cylinder. The bottom face of the elastic sealing structure is connected with the top end of the sealing cylinder in a sealed mode. By means of the structure, the coal mine gas extraction device is better in gas sealing effect, higher in safety, simple in structure and easy to use.

Description

Technical Field

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

[0002] Gas is formed when cellulose and organic matter are decomposed by anaerobic bacteria in the early stage of ancient plants being piled up into coal. Gas is a colorless, tasteless, and odorless gas that is difficult to dissolve in water. It does not support combustion and cannot sustain breathing. When it reaches a certain concentration, it can cause people to suffocate due to lack of oxygen, and can also cause combustion or explosion. Gas explosion is one of the main disasters in coal mines. In coal mining, a large amount of gas is generated. Before mining, it is necessary to drill holes in the coal seam and then extract the gas in the mine hole.

[0003] After searching: A coal mine gas extraction device with the authorization publication number CN209277932U, by setting threaded holes, bolts, connecting plates and slots, can be separated from the drill after drilling into the designated position. At the same time, an extraction tube is provided inside the drill, so there is no need to take out the drill, put in the extraction tube, and seal the gap between the extraction tube and the borehole, thus avoiding gas leakage through the gap during this period. However, the above-mentioned coal mine gas extraction device still has some shortcomings. The extraction device is not sealed enough, and gas leakage is prone to occur, which in turn causes safety hazards. It is also inconvenient to drill different depths and extract gas at different depths according to the use situation, thereby reducing the practicality of the device. Therefore, we propose a coal mine gas extraction device to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a coal mine gas extraction device to solve the above problems.

[0005] To achieve the above purpose, the utility model provides the following solutions:

[0006] A coal mine gas extraction device comprises: a base, with adjustable roller plate structures hinged on both sides of the base;

[0007] The top surface of the base is fixedly connected with a shell, the inner side of the shell is vertically slidably connected with a slide seat, the shell is provided with a slide seat driving structure, the slide seat driving structure is transmission-connected with the slide seat, the inner side of the middle part of the slide seat is rotationally connected with a drill barrel structure, the slide seat is provided with a drill barrel driving structure, the drill barrel driving structure is transmission-connected with the drill barrel structure, the bottom surface of the base is provided with a sealing cylinder, the top end of the sealing cylinder passes through the base, and the drill barrel structure corresponds vertically to the sealing cylinder;

[0008] An elastic sealing structure is sleeved in the middle of the drill tube structure, the top of the elastic sealing structure is connected to the bottom surface of the slide seat, and the bottom surface of the elastic sealing structure is sealed and connected to the top of the sealing tube;

[0009] The top of the drill tube structure is connected to the air inlet end of the pump body, the pump body is fixedly connected to the top of the shell, and the air outlet end of the pump body is connected to the air outlet pipe.

[0010] Preferably, the adjustable roller plate structure includes a roller mounting plate, which is hinged to one side of the base through a hinge, a roller is provided on the bottom surface of the roller mounting plate, a first magnet is provided at one end of the roller mounting plate close to the base, and second magnets are respectively provided on both sides of the base, and the first magnet is magnetically connected to the corresponding second magnet.

[0011] Preferably, the slide drive structure includes a screw, the bottom end of the screw is rotatably connected to the base, the middle part of the screw is threadedly connected to the slide, the top end of the screw is axially connected to the output shaft of the first motor, and the first motor is fixedly connected to the housing.

[0012] Preferably, the drill barrel structure comprises a drill barrel, the drill barrel is rotatably connected to the inner side of the middle part of the slide seat, the axis of the drill barrel is vertically arranged, the drill barrel is transmission-connected to the drill barrel driving structure, and the elastic sealing structure is sleeved on the outer side of the drill barrel;

[0013] A drill bit is axially connected to the bottom end of the drill barrel, an L-shaped tube is provided on the inner side of the drill barrel, the bottom end of the L-shaped tube is connected to the side wall of the drill barrel, the top end of the L-shaped tube is connected to a connecting tube, the top end of the L-shaped tube is rotatably connected to the inner side of the bottom end of the connecting tube, the top end of the L-shaped tube is vertically slidably connected to the inner side of the bottom end of the connecting tube, the top end of the connecting tube passes through the top end of the drill barrel and is connected to the air inlet end of the pump body, and the connecting tube is rotatably connected to the top end of the drill barrel.

[0014] Preferably, a filter head is provided at the connection point between the L-shaped tube and the side wall of the drill barrel.

[0015] Preferably, the drill barrel driving structure includes a second motor, the second motor is fixedly connected to the slide seat, the output shaft of the second motor is connected to a driving gear, a driven gear ring is fixedly sleeved on the outer side of the top of the drill barrel, and the driving gear is meshed with the driven gear ring.

[0016] Preferably, the elastic sealing structure includes a rubber sealing sleeve, which is slidably mounted on the outer side of the middle part of the drill barrel, and the rubber sealing sleeve is located below the slide seat. A return spring is provided between the rubber sealing sleeve and the slide seat, and the return spring sleeve is mounted on the outer side of the middle part of the drill barrel.

[0017] Preferably, a supporting foot is fixedly connected to a corner portion of the bottom surface of the base.

[0018] Compared with the prior art, the utility model has the following advantages and technical effects:

[0019] When the utility model is in use, first the base is pushed to the corresponding position, and then the two adjustable roller plate structures are rotated so that the sealing tube in the device can be placed in the specified position and stably contact with the ground to ensure the sealing of the gas, and then the slide seat driving structure is used to drive the slide seat to move downward, and the drill barrel driving structure is used to drive the drill barrel structure to rotate, thereby achieving drilling of the ground, and after the drill barrel structure in the device penetrates deep, the elastic sealing structure can seal the top of the sealing tube to ensure that the gas is not easy to leak, and finally the gas extraction operation is achieved.

[0020] The device can seal the drill tube structure by means of a sealing tube that is arranged in cooperation with an elastic sealing structure, thereby improving the sealing effect. Compared with the structure in the prior art, the gas leakage in the device is lower and safer.

[0021] By utilizing these structures, the utility model realizes a coal mine gas extraction device which has better gas sealing effect, higher safety, simple structure and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor:

[0023] Figure 1 It is the overall structural diagram of the device;

[0024] Figure 2 is a front cross-sectional view of the device;

[0025] Figure 3 for Figure 2 A magnified schematic diagram of part A;

[0026] Among them, 1. base; 2. adjustable roller plate structure; 3. support foot; 4. shell; 5. slide seat drive structure; 6. slide seat; 7. drill barrel drive structure; 8. elastic sealing structure; 9. drill barrel structure; 10. sealing barrel; 12. pump body; 13. exhaust pipe; 201. roller mounting plate; 202. roller; 203. hinge; 204. first magnet; 205. second magnet; 501. screw; 502. first motor; 701. driving gear; 702. second motor; 703. driven gear ring; 801. rubber sealing sleeve; 802. reset spring; 901. drill barrel; 902. drill bit; 903. L-shaped pipe; 904. connecting pipe; 905. filter head. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0029] Reference Figures 1 to 3 The utility model discloses a coal mine gas extraction device, comprising: a base 1, with adjustable roller plate structures 2 hingedly connected to both sides of the base 1;

[0030] The top surface of the base 1 is fixedly connected with a shell 4, the inner side of the shell 4 is vertically slidably connected with a slide seat 6, the shell 4 is provided with a slide seat driving structure 5, the slide seat driving structure 5 is transmission-connected with the slide seat 6, the inner side of the middle of the slide seat 6 is rotationally connected with a drill barrel structure 9, the slide seat 6 is provided with a drill barrel driving structure 7, the drill barrel driving structure 7 is transmission-connected with the drill barrel structure 9, the bottom surface of the base 1 is provided with a sealing cylinder 10, the top end of the sealing cylinder 10 passes through the base 1, and the drill barrel structure 9 corresponds to the sealing cylinder 10 vertically;

[0031] An elastic sealing structure 8 is sleeved in the middle of the drill tube structure 9, the top of the elastic sealing structure 8 is connected to the bottom surface of the sliding seat 6, and the bottom surface of the elastic sealing structure 8 is sealed and connected to the top of the sealing tube 10;

[0032] The top of the drill tube structure 9 is connected to the air inlet end of the pump body 12 . The pump body 12 is fixedly connected to the top of the housing 4 . The air outlet end of the pump body 12 is connected to the air outlet pipe 13 .

[0033] When the device is in use, first push the base 1 to the corresponding position, and then rotate the two adjustable roller plate structures 2 so that the sealing tube 10 in the device can be placed in the specified position and stably contact the ground to ensure the sealing of the gas. Then, the slide 6 is driven downward by the slide drive structure 5, and the drill barrel structure 9 is driven to rotate by the drill barrel drive structure 7 to achieve drilling of the ground. After the drill barrel structure 9 in the device penetrates deeply, the elastic sealing structure 8 can seal the top of the sealing tube 10 to ensure that the gas is not easy to leak, thereby finally achieving the gas extraction operation.

[0034] The sealing tube 10 of the device cooperates with the elastic sealing structure 8 to seal the drill tube structure 9, thereby improving the sealing effect. Compared with the structure in the prior art, the gas leakage in the device is lower and safer.

[0035] A further optimized solution is provided, in which the adjustable roller plate structure 2 includes a roller mounting plate 201, which is hinged to one side of the base 1 through a hinge 203, a roller 202 is provided on the bottom surface of the roller mounting plate 201, a first magnet 204 is provided at one end of the roller mounting plate 201 close to the base 1, and second magnets 205 are respectively provided on both sides of the base 1, and the first magnet 204 is magnetically connected to the corresponding second magnet 205.

[0036] According to a further optimization scheme, the slide drive structure 5 includes a screw 501, the bottom end of the screw 501 is rotatably connected to the base 1, the middle part of the screw 501 is threadedly connected to the slide 6, the top end of the screw 501 is axially connected to the output shaft of the first motor 502, and the first motor 502 is fixedly connected to the housing 4.

[0037] Further optimized solution, the drill barrel structure 9 includes a drill barrel 901, the drill barrel 901 is rotatably connected to the inner side of the middle part of the slide seat 6, the axis of the drill barrel 901 is vertically arranged, the drill barrel 901 is transmission-connected to the drill barrel driving structure 7, and the elastic sealing structure 8 is sleeved on the outer side of the drill barrel 901;

[0038] A drill bit 902 is axially connected to the bottom end of the drill barrel 901, an L-shaped tube 903 is provided on the inner side of the drill barrel 901, the bottom end of the L-shaped tube 903 is connected to the side wall of the drill barrel 901, the top end of the L-shaped tube 903 is connected to a connecting tube 904, the top end of the L-shaped tube 903 is rotatably connected to the inner side of the bottom end of the connecting tube 904, the top end of the L-shaped tube 903 is vertically slidably connected to the inner side of the bottom end of the connecting tube 904, the top end of the connecting tube 904 passes through the top end of the drill barrel 901 and is connected to the air inlet end of the pump body 12, and the connecting tube 904 is rotatably connected to the top end of the drill barrel 901.

[0039] The L-shaped tube 903 can slide along the axial direction of the connecting tube 904 and can also rotate with the connecting tube 904 to achieve flexible movement, ensuring that the L-shaped tube 903 and the connecting tube 904 remain sealed and connected while the drill pipe 901 moves downward and rotates.

[0040] To further optimize the solution, a filter head 905 is provided at the connection between the L-shaped tube 903 and the side wall of the drill tube 901. The filter head 905 can filter gravel and dust to ensure the cleanliness of the gas.

[0041] According to a further optimization scheme, the drill barrel driving structure 7 includes a second motor 702, which is fixedly connected to the slide 6, and the output shaft of the second motor 702 is connected to a driving gear 701. A driven gear ring 703 is fixedly sleeved on the outer side of the top of the drill barrel 901, and the driving gear 701 is meshed with the driven gear ring 703.

[0042] A further optimized solution is that the elastic sealing structure 8 includes a rubber sealing sleeve 801, which is slidably mounted on the outer side of the middle part of the drill tube 901. The rubber sealing sleeve 801 is located below the slide seat 6. A reset spring 802 is provided between the rubber sealing sleeve 801 and the slide seat 6. The reset spring 802 is mounted on the outer side of the middle part of the drill tube 901.

[0043] According to a further optimized solution, a support leg 3 is fixedly connected to the bottom corner of the base 1 .

[0044] When the drill tube 901 in the device descends, the return spring 802 in the elastic sealing structure 8 pushes the rubber sealing sleeve 801 against the top surface of the sealing tube 10 to ensure the sealing effect.

[0045] The function of the supporting legs 3 is to balance the sealing tube 10 so that the device is not prone to tipping over.

[0046] The device is equipped with a controller, which can be installed at any position on the base 1 and is used to control the operation of various electrical components in the device. The selection of the controller is a conventional technical means in the field and will not be described in detail here.

[0047] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0048] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A coal mine gas extraction device, characterized in that: include: A base (1), wherein adjustable roller plate structures (2) are respectively hingedly connected on both sides of the base (1); The top surface of the base (1) is fixedly connected to a shell (4), the inner side of the shell (4) is vertically slidably connected to a slide seat (6), the shell (4) is provided with a slide seat driving structure (5), the slide seat driving structure (5) is transmission-connected to the slide seat (6), the inner side of the middle part of the slide seat (6) is rotationally connected to a drill barrel structure (9), the slide seat (6) is provided with a drill barrel driving structure (7), the drill barrel driving structure (7) is transmission-connected to the drill barrel structure (9), the bottom surface of the base (1) is provided with a sealing cylinder (10), the top end of the sealing cylinder (10) passes through the base (1), and the drill barrel structure (9) and the sealing cylinder (10) are vertically corresponding; An elastic sealing structure (8) is sleeved in the middle of the drill tube structure (9), the top of the elastic sealing structure (8) is connected to the bottom surface of the slide seat (6), and the bottom surface of the elastic sealing structure (8) is sealingly connected to the top of the sealing tube (10); The top end of the drill tube structure (9) is connected to the air inlet end of the pump body (12), the pump body (12) is fixedly connected to the top end of the housing (4), and the air outlet end of the pump body (12) is connected to the air outlet pipe (13).

2. A coal mine gas extraction device according to claim 1, characterized in that: The adjustable roller plate structure (2) comprises a roller mounting plate (201), the roller mounting plate (201) being hinged to one side of the base (1) via a hinge (203), a roller (202) being provided on the bottom surface of the roller mounting plate (201), a first magnet (204) being provided at one end of the roller mounting plate (201) close to the base (1), second magnets (205) being provided on both sides of the base (1), and the first magnet (204) being magnetically connected to the corresponding second magnet (205).

3. A coal mine gas extraction device according to claim 1, characterized in that: The slide drive structure (5) comprises a screw rod (501), the bottom end of the screw rod (501) is rotatably connected to the base (1), the middle part of the screw rod (501) is threadedly connected to the slide (6), the top end of the screw rod (501) is axially connected to the output shaft of the first motor (502), and the first motor (502) is fixedly connected to the housing (4).

4. A coal mine gas extraction device according to claim 1, characterized in that: The drill barrel structure (9) comprises a drill barrel (901), the drill barrel (901) is rotatably connected to the inner side of the middle part of the slide seat (6), the axis of the drill barrel (901) is vertically arranged, the drill barrel (901) is transmission-connected to the drill barrel drive structure (7), and the elastic sealing structure (8) is sleeved on the outer side of the drill barrel (901); The bottom end of the drill barrel (901) is axially connected to a drill bit (902); an L-shaped tube (903) is provided inside the drill barrel (901); the bottom end of the L-shaped tube (903) is connected to the side wall of the drill barrel (901); the top end of the L-shaped tube (903) is connected to a connecting tube (904); the top end of the L-shaped tube (903) is rotatably connected to the inside of the bottom end of the connecting tube (904); the top end of the L-shaped tube (903) is vertically slidably connected to the inside of the bottom end of the connecting tube (904); the top end of the connecting tube (904) passes through the top end of the drill barrel (901) and is connected to the air inlet end of the pump body (12); and the connecting tube (904) is rotatably connected to the top end of the drill barrel (901).

5. A coal mine gas extraction device according to claim 4, characterized in that: A filter head (905) is provided at the connection point between the L-shaped tube (903) and the side wall of the drill tube (901).

6. A coal mine gas extraction device according to claim 4, characterized in that: The drill tube driving structure (7) comprises a second motor (702), the second motor (702) is fixedly connected to the slide seat (6), the output shaft of the second motor (702) is connected to a driving gear (701), a driven gear ring (703) is fixedly sleeved on the outer side of the top of the drill tube (901), and the driving gear (701) is meshed with the driven gear ring (703).

7. A coal mine gas extraction device according to claim 4, characterized in that: The elastic sealing structure (8) comprises a rubber sealing sleeve (801), the rubber sealing sleeve (801) is slidably sleeved on the outer side of the middle part of the drill tube (901), the rubber sealing sleeve (801) is located below the slide seat (6), a return spring (802) is provided between the rubber sealing sleeve (801) and the slide seat (6), and the return spring (802) is sleeved on the outer side of the middle part of the drill tube (901).

8. A coal mine gas extraction device according to claim 1, characterized in that: A support foot (3) is fixedly connected to a corner portion of the bottom surface of the base (1).

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