Drilling and sealing device for mine gas extraction

Abstract

The utility model relates to the technical field of gas extraction drilling and hole sealing devices, in particular to a mine gas extraction drilling and hole sealing device which comprises a stirring barrel, three positioning columns are fixedly connected to the top end of the stirring barrel, a cover plate is arranged at the top end of the stirring barrel, the three positioning columns penetrate through the cover plate, a fixing structure is arranged on the stirring barrel, and the cover plate is arranged on the fixing structure. The fixing structure comprises rotating shafts and check blocks, the top end of the stirring barrel is rotationally connected with the two rotating shafts, the check blocks are fixedly connected to the rotating shafts, the two check blocks abut against the cover plate, the check blocks are slidably connected with inserting blocks, four inserting grooves are formed in the top end of the stirring barrel, and the bottom ends of the inserting blocks are clamped with the adjacent inserting grooves; when the interior of the stirring barrel needs to be cleaned, the cover plate can be quickly detached, so that the cleaning time is shortened, and the cleaning efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a hole-sealing device, in particular to a hole-sealing device for mine gas drainage boreholes, belonging to the technical field of hole-sealing devices for gas drainage boreholes in mines. Background Technique

[0002] The main purpose of mine gas drainage is to reduce the amount of gas flowing into the mining space, prevent gas overrun, and ensure the safety of the mine. During the gas drainage process, it is necessary to first open a drainage hole on the wall at the drainage location, and then place the end of the drainage pipe into the interior of the drainage hole. In order to prevent external air from entering the interior of the drainage hole during the drainage process, it is necessary to seal the drainage hole. When sealing the drainage hole, a pneumatic grouting pump is selected for grouting and sealing. The pneumatic grouting pump mainly consists of a mixing barrel, a cover plate at the top of the mixing barrel, and components such as a grouting pump and a slurry outlet assembly installed on the cover plate.

[0003] However, when the mixing barrel of the traditional pneumatic grouting pump is not in use, in order to prevent the mortar from solidifying inside it, it is necessary to clean it. In order to clean it more thoroughly, the cover plate is generally removed from the top of the mixing barrel. Since the cover plate is installed on the top of the mixing barrel through multiple bolts, a large amount of time is required to twist the bolts during installation and disassembly, which will waste a certain amount of time and reduce the cleaning efficiency. Content of the Utility Model

[0004] The purpose of the present utility model is to provide a hole-sealing device for mine gas drainage boreholes to solve the above problems. When it is necessary to clean the interior of the mixing barrel, the cover plate can be quickly removed, thereby shortening the cleaning time and improving the cleaning efficiency.

[0005] The present utility model realizes the above purpose through the following technical solutions. The hole-sealing device for mine gas drainage boreholes includes a mixing barrel. Three positioning columns are fixedly connected to the top of the mixing barrel. A cover plate is placed on the top of the mixing barrel. The three positioning columns penetrate through the cover plate. A fixing structure is provided on the mixing barrel. The fixing structure includes a rotating shaft and a stopper. Two rotating shafts are rotatably connected to the top of the mixing barrel. A stopper is fixedly connected to the rotating shaft. The two stoppers abut against the cover plate. An insertion block is slidably connected to the stopper. Four slots are provided on the top of the mixing barrel. The bottom end of the insertion block is engaged with the adjacent slot.

[0006] Preferably, a connecting piece is fixedly connected to the insertion block. A return spring is sleeved outside the insertion block. One end of the return spring is fixedly connected to the connecting piece, and the other end of the return spring is fixedly connected to the stopper.

[0007] Preferably, the cross-section of one end of the insertion block is in a T-shaped structure, and the cross-section of the other end of the insertion block is in a trapezoidal structure.

[0008] Preferably, the cross-section of the top end of the positioning post is in a trapezoidal structure, and the rotating shaft is perpendicular to the stopper.

[0009] Preferably, the stirring barrel is provided with a feed inlet, and the stirring barrel is provided with a protective structure.

[0010] Preferably, the protective structure includes a first baffle and a second baffle. The first baffle is rotatably connected to the stirring barrel, and the second baffle is rotatably connected to the first baffle.

[0011] Preferably, two handles are fixedly connected to both sides of the stirring barrel, and the two handles are symmetrically distributed about the middle of the stirring barrel.

[0012] Preferably, a sewage outlet is provided at the bottom end of the stirring barrel, and a sealing plug is threadedly connected inside the sewage outlet.

[0013] The beneficial effects of the present utility model are as follows: When it is necessary to clean the inside of the stirring barrel, the plug can be pulled. When the bottom end of the plug is not engaged with one of the slots, the stopper can be rotated. The stopper drives the rotating shaft to rotate. When the stopper rotates 90 degrees, the end of the plug will be engaged with another adjacent slot. At this time, one of the stoppers will no longer resist the cover plate. Next, repeat the above operation so that the other stopper also does not resist the cover plate. When both stoppers do not resist the cover plate, the cover plate can be moved to be disassembled from the top end of the stirring barrel, thus realizing the rapid disassembly of the cover plate, avoiding the need to spend a lot of time turning the bolts, shortening the cleaning time, and improving the cleaning efficiency. By setting three positioning posts, the cover plate can be positioned when the cover plate is installed, thus avoiding the deviation of the position of the cover plate and improving the stability of use. Description of the Drawings

[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 is Figure 1 the enlarged schematic diagram of part A shown in;

[0016] Figure 3 is a schematic diagram of the connection structure of the rotating shaft and the stopper of the present utility model;

[0017] Figure 4 is a schematic diagram of the connection structure of the first baffle and the second baffle of the present utility model;

[0018] Figure 5 is Figure 4 the enlarged schematic diagram of part B shown in;

[0019] Figure 6 is a schematic diagram of the connection structure of the plug and the connecting piece of the present utility model.

[0020] In the figure: 1, stirring barrel; 2, cover plate; 3, positioning column; 4, fixing structure; 401, rotating shaft; 402, stopper; 403, inserting block; 404, connecting piece; 405, return spring; 406, slot; 5, feeding port; 6, protection structure; 601, first baffle; 602, second baffle; 7, handle; 8, sewage outlet; 9, sealing plug. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, a hole sealing device for mine gas drainage drilling includes a stirring barrel 1. Three positioning columns 3 are fixedly connected to the top end of the stirring barrel 1. A cover plate 2 is placed on the top end of the stirring barrel 1. The three positioning columns 3 penetrate through the cover plate 2. A fixing structure 4 is provided on the stirring barrel 1. The fixing structure 4 includes a rotating shaft 401 and a stopper 402. Two rotating shafts 401 are rotatably connected to the top end of the stirring barrel 1. A stopper 402 is fixedly connected to the rotating shaft 401. The two stoppers 402 abut against the cover plate 2. An inserting block 403 is slidably connected to the stopper 402. Four slots 406 are provided at the top end of the stirring barrel 1. The bottom end of the inserting block 403 is engaged with the adjacent slot 406.

[0023] As a technical optimization scheme of the present invention, as Figure 2 and Figure 6 shown, a connecting piece 404 is fixedly connected to the inserting block 403. A return spring 405 is sleeved outside the inserting block 403. One end of the return spring 405 is fixedly connected to the connecting piece 404, and the other end of the return spring 405 is fixedly connected to the stopper 402. Therefore, under the action of the return spring 405, the engagement between the inserting block 403 and the slot 406 can be made more stable.

[0024] As a technical optimization scheme of the present invention, as Figure 6 shown, the cross-section of one end of the inserting block 403 is in a T-shaped structure, and the cross-section of the other end of the inserting block 403 is in a trapezoidal structure. Therefore, it can play a guiding role when the inserting block 403 is engaged with the slot 406.

[0025] As a technical optimization solution of the present utility model, as Figure 2 shown, the cross-section of the top end of the positioning column 3 is in a trapezoidal structure, and the rotating shaft 401 is perpendicular to the stopper 402, so it can play a guiding role when the positioning column 3 is engaged with the cover plate 2.

[0026] As a technical optimization solution of the present utility model, as Figure 1 shown, the stirring barrel 1 is provided with a feed inlet 5, and the stirring barrel 1 is provided with a protection structure 6. The protection structure 6 includes a first baffle 601 and a second baffle 602. The first baffle 601 is rotatably connected to the stirring barrel 1, and the second baffle 602 is rotatably connected to the first baffle 601. Therefore, when the device is not needed, the feed inlet 5 can be sealed by the first baffle 601 and the second baffle 602, so as to prevent foreign objects from entering the interior of the stirring barrel 1 through the feed inlet 5, thus effectively improving the safety of use.

[0027] As a technical optimization solution of the present utility model, as Figure 1 shown, two handles 7 are fixedly connected to both sides of the stirring barrel 1, and the two handles 7 are symmetrically distributed about the middle of the stirring barrel 1, so that the stirring barrel 1 can be conveniently moved.

[0028] As a technical optimization solution of the present utility model, as Figure 4 and Figure 5 shown, a sewage discharge port 8 is provided at the bottom end of the stirring barrel 1, and a sealing plug 9 is threadedly connected inside the sewage discharge port 8, so as to facilitate the discharge of the sewage after cleaning.

[0029] When the utility model is in use, the mortar used for sealing can be added into the interior of the mixing barrel 1 from the feed inlet 5. When it is necessary to clean the interior of the mixing barrel 1, the insertion block 403 can be pulled. The insertion block 403 drives the connecting piece 404 to move synchronously, and the return spring 405 contracts. When the bottom end of the insertion block 403 is not engaged with one of the slots 406, the stop block 402 can be rotated. The stop block 402 drives the rotating shaft 401 to rotate. When the stop block 402 rotates by 90 degrees, the end of the insertion block 403 will be engaged with another adjacent slot 406 under the action of the return spring 405. At this time, one of the stop blocks 402 will no longer resist the cover plate 2. Next, repeat the above operation so that the other stop block 402 also does not resist the cover plate 2. When both stop blocks 402 do not resist the cover plate 2, the cover plate 2 can be moved to be disassembled from the top of the mixing barrel 1, thus realizing the rapid disassembly of the cover plate 2, avoiding the need to spend a lot of time turning bolts, shortening the cleaning time, and improving the cleaning efficiency. By providing three positioning posts 3, the cover plate 2 can be positioned when the cover plate 2 is installed, thus avoiding the deviation of the position of the cover plate 2 and improving the stability of use. By providing two handles 7, it is convenient to move the mixing barrel 1. During the cleaning process, the interior of the mixing barrel 1 can be rinsed with water. By twisting the sealing plug 9 off the sewage outlet 8, the cleaned sewage can be discharged from the sewage outlet 8, thus facilitating the discharge of the sewage after cleaning. And when the mixing barrel 1 is not needed, the first baffle 601 and the second baffle 602 can be rotated to seal the feed inlet 5, thus avoiding foreign objects from entering the interior of the mixing barrel 1 and effectively improving the safety of use.

[0030] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0031] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. Borehole sealing device for mine gas drainage, including a stirring barrel (1), characterized in that: Three positioning columns (3) are fixedly connected to the top end of the stirring barrel (1). A cover plate (2) is placed on the top end of the stirring barrel (1). The three positioning columns (3) penetrate through the cover plate (2). A fixing structure (4) is provided on the stirring barrel (1). The fixing structure (4) includes a rotating shaft (401) and a stopper (402). Two rotating shafts (401) are rotatably connected to the top end of the stirring barrel (1). A stopper (402) is fixedly connected to the rotating shaft (401). The two stoppers (402) abut against the cover plate (2). A plug (403) is slidably connected to the stopper (402). Four slots (406) are provided at the top end of the stirring barrel (1). The bottom end of the plug (403) is engaged with the adjacent slot (406).

2. The borehole sealing device for mine gas drainage according to claim 1, wherein: A connecting piece (404) is fixedly connected to the plug (403). A return spring (405) is sleeved outside the plug (403). One end of the return spring (405) is fixedly connected to the connecting piece (404), and the other end of the return spring (405) is fixedly connected to the stopper (402).

3. The borehole sealing device for mine gas drainage according to claim 1, wherein: One end of the plug (403) has a T-shaped cross-section structure, and the other end of the plug (403) has a trapezoidal cross-section structure.

4. The borehole sealing device for mine gas drainage according to claim 1, characterized in that: The top end of the positioning column (3) has a trapezoidal cross-section structure. The rotating shaft (401) is perpendicular to the stopper (402).

5. The borehole sealing device for mine gas drainage according to claim 4, characterized in that: A feed inlet (5) is provided on the stirring barrel (1). A protection structure (6) is provided on the stirring barrel (1).

6. The borehole sealing device for mine gas drainage according to claim 5, wherein: The protection structure (6) includes a first baffle (601) and a second baffle (602). The first baffle (601) is rotatably connected to the stirring barrel (1). The second baffle (602) is rotatably connected to the first baffle (601).

7. The borehole sealing device for mine gas drainage according to claim 1, characterized in that: Two handles (7) are fixedly connected to both sides of the stirring barrel (1). The two handles (7) are symmetrically distributed about the middle of the stirring barrel (1).

8. The borehole sealing device for mine gas drainage according to claim 1, wherein: A sewage outlet (8) is provided at the bottom end of the stirring barrel (1). A sealing plug (9) is threadedly connected inside the sewage outlet (8).

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