Grouting plugging equipment for coal mine roof crack

Abstract

The utility model relates to the technical field of grouting plugging equipment, and discloses grouting plugging equipment for coal mine roof cracks, which comprises a first baffle plate, a second baffle plate is arranged at the right end of the first baffle plate, two ends of the first baffle plate are fixedly connected with protruding plates, and two ends of the second baffle plate are provided with fixing grooves. The first baffle and the second baffle are preliminarily limited by inserting the protruding plates into the fixing grooves, then the first baffle and the second baffle are fixed by rotating the threaded rods, adjustment can be conveniently conducted according to coal mine roof cracks with different widths in actual use, the applicability and flexibility in use are improved, and the practicability is high. The operation is convenient and fast, the construction time is shortened, the working efficiency is improved, the first sealing strip and the second sealing strip are tightly attached to the top plate, grout can be prevented from leaking through the joint of the first baffle and the second baffle, and therefore the plugging effect is improved, and meanwhile grout waste is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of grouting and plugging equipment, in particular to grouting and plugging equipment for cracks in coal mine roofs. Background Art

[0002] Grouting equipment for cracks in coal mine roofs is usually used to improve the safety of coal mines, especially playing an important role in preventing and controlling water hazards. These devices can inject slurry into the cracks in the coal seam to reduce the flow of water into the mine, while also increasing the stability of the roof.

[0003] Traditional plugging equipment injects grout into the cracks through grouting pipes. However, during the grouting process, the slurry can easily flow out through the cracks, affecting the plugging effect. The slurry can also easily flow out, resulting in slurry waste. Traditional plugging equipment is usually an integrated design that is difficult to adapt to cracks of different lengths. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides grouting and plugging equipment for coal mine roof cracks.

[0005] The utility model is implemented by the following technical scheme: a grouting and plugging device for cracks in a coal mine roof comprises a first baffle, a second baffle is arranged at the right end of the first baffle, protruding plates are fixedly connected at both ends of the first baffle, fixing grooves are provided at both ends of the second baffle, a first sealing strip is fixedly connected to the upper surface of the first baffle, a second sealing strip is fixedly connected to the upper surface of the second baffle, one end of the protruding plate is plugged into the inner wall of the fixing groove, and a threaded rod is threadedly connected to the inner wall of the second baffle.

[0006] Through the above technical solution, the protruding plate is inserted into the interior of the fixing groove, the first baffle plate and the second baffle plate are initially limited, and then the first baffle plate and the second baffle plate are fixed by rotating the threaded rod, which is convenient for adjustment according to different widths of coal mine roof cracks in actual use.

[0007] As a further improvement of the above solution, the size of the protruding plate is matched with the size of the fixing groove, and the threaded rod passes through the second baffle plate and is threadedly connected to the inner wall of the protruding plate.

[0008] Through the above technical solution, the first baffle plate and the second baffle plate can be quickly spliced ​​and installed through the threaded rod, thereby improving the construction efficiency.

[0009] As a further improvement of the above solution, a first grouting pipe is fixedly connected to the inner wall of the first baffle plate, and a second grouting pipe is fixedly connected to the inner wall of the second baffle plate.

[0010] As a further improvement of the above solution, a first sealing ring is sleeved on the surface of the first grouting pipe, and a second sealing ring is sleeved on the surface of the second grouting pipe.

[0011] As a further improvement of the above solution, the lower surface of the first sealing ring is fixedly connected to the upper surface of the first baffle plate, and the lower surface of the second sealing ring is fixedly connected to the upper surface of the second baffle plate.

[0012] Through the above technical solution, the first sealing ring and the second sealing ring are tightly fitted to the surfaces of the first grouting pipe and the second grouting pipe, thereby preventing the slurry from flowing out through the joint between the first grouting pipe and the second grouting pipe.

[0013] As a further improvement of the above solution, a first support column is fixedly connected to the bottom of the first baffle, and the number of the first support columns is two, and the two first support columns are symmetrically distributed around the first baffle.

[0014] Through the above technical solution, the first baffle is supported by two first support columns, thereby improving the stability of the support.

[0015] As a further improvement of the above solution, a second support column is fixedly connected to the bottom of the second baffle, and the number of the second support columns is two, and the two second support columns are symmetrically distributed around the second baffle.

[0016] Through the above technical solution, the second baffle is supported by two second support columns, thereby improving the stability of the support.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The utility model provides a first baffle, a second baffle, a first sealing strip and a second sealing strip, specifically, inserting a protruding plate into the interior of a fixing groove, preliminarily limiting the first baffle and the second baffle, and then fixing the first baffle and the second baffle by rotating a threaded rod, so as to be convenient for adjustment according to cracks of coal mine roofs of different widths during actual use, thereby improving the applicability and flexibility during use, and convenient and quick operation, reducing construction time, and improving work efficiency, and then inserting the first grouting pipe and the second grouting pipe into the interior of the crack, connecting the first grouting pipe and the second grouting pipe through external grouting equipment, pouring slurry into the interior of the crack, and fitting the first sealing strip and the second sealing strip closely to the roof, so as to avoid leakage of slurry through the joints of the first baffle and the second baffle, thereby improving the sealing effect and avoiding waste of slurry.

[0019] The utility model arranges a first sealing ring, a second sealing ring, a second supporting column and a second supporting column. Specifically, the first sealing ring and the second sealing ring are in close contact with the surfaces of the first grouting pipe and the second grouting pipe to prevent slurry from flowing out through the joint of the first grouting pipe and the second grouting pipe, and also improves the quality of sealing. The first support column and the second support column support the first baffle and the second baffle to ensure stability during the grouting process, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the first baffle and the second baffle of the utility model;

[0022] Figure 3 This is a schematic diagram of the explosion structure of the first baffle and the second baffle of the utility model;

[0023] Figure 4 This is a schematic diagram of the overall side view structure of the utility model;

[0024] Figure 5 It is a schematic diagram of the overall structure of the utility model when viewed from above.

[0025] Description of main symbols:

[0026] 1. First baffle; 2. Second baffle; 3. Protruding plate; 4. Fixing groove; 5. First sealing strip; 6. First grouting pipe; 7. First sealing ring; 8. Second sealing strip; 9. Second grouting pipe; 10. Second sealing ring; 11. Threaded rod; 12. First support column; 13. Second support column. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0028] Example:

[0029] Please combine Figure 1-5The grouting and plugging device for cracks in the roof of a coal mine of this embodiment comprises a first baffle plate 1, a second baffle plate 2 is arranged at the right end of the first baffle plate 1, protruding plates 3 are fixedly connected to both ends of the first baffle plate 1, and fixing grooves 4 are provided at both ends of the second baffle plate 2. A first sealing strip 5 is fixedly connected to the upper surface of the first baffle plate 1, and a second sealing strip 8 is fixedly connected to the upper surface of the second baffle plate 2. One end of the protruding plate 3 is plugged into the inner wall of the fixing groove 4, and a threaded rod 11 is threadedly connected to the inner wall of the second baffle plate 2. The protruding plate 3 is inserted into the interior of the fixing groove 4, and the first baffle plate 1 and the second baffle plate 2 are preliminarily limited. Then, by rotating the threaded rod 11, the first baffle plate 1 and the second baffle plate 2 are preliminarily limited. A baffle 1 and a second baffle 2 are fixed, which is convenient for adjustment according to different widths of coal mine roof cracks during actual use, thereby improving the applicability and flexibility during use, and the operation is convenient and quick, reducing the construction time and improving the work efficiency. Then the first grouting pipe 6 and the second grouting pipe 9 are inserted into the interior of the crack, and the first grouting pipe 6 and the second grouting pipe 9 are connected through external grouting equipment to pour slurry into the interior of the crack. The first sealing strip 5 and the second sealing strip 8 are tightly fitted with the roof to prevent the slurry from leaking through the joints of the first baffle 1 and the second baffle 2, thereby improving the sealing effect and avoiding the waste of slurry.

[0030] The size of the protruding plate 3 matches the size of the fixing groove 4 , and the threaded rod 11 penetrates through the second baffle plate 2 and is threadedly connected to the inner wall of the protruding plate 3 .

[0031] A first grouting pipe 6 is fixedly connected to the inner wall of the first baffle plate 1 , and a second grouting pipe 9 is fixedly connected to the inner wall of the second baffle plate 2 .

[0032] The surface of the first grouting pipe 6 is sleeved with a first sealing ring 7, and the surface of the second grouting pipe 9 is sleeved with a second sealing ring 10. The first sealing ring 7 and the second sealing ring 10 are tightly fitted with the surfaces of the first grouting pipe 6 and the second grouting pipe 9 to prevent the slurry from flowing out through the joint between the first grouting pipe 6 and the second grouting pipe 9, and also improve the quality of the sealing.

[0033] The lower surface of the first sealing ring 7 is fixedly connected to the upper surface of the first baffle plate 1 , and the lower surface of the second sealing ring 10 is fixedly connected to the upper surface of the second baffle plate 2 .

[0034] A first support column 12 is fixedly connected to the bottom of the first baffle plate 1. There are two first support columns 12, which are symmetrically distributed around the first baffle plate 1. The first support column 12 and the second support column 13 support the first baffle plate 1 and the second baffle plate 2 to ensure stability during the grouting process, thereby improving practicality.

[0035] A second support column 13 is fixedly connected to the bottom of the second baffle plate 2 . There are two second support columns 13 , and the two second support columns 13 are symmetrically distributed around the second baffle plate 2 .

[0036] The implementation principle of the grouting and plugging device for coal mine roof cracks in the embodiment of the present application is as follows: when in use, the protruding plate 3 is inserted into the interior of the fixing groove 4, the first baffle plate 1 and the second baffle plate 2 are preliminarily limited, and then the first baffle plate 1 and the second baffle plate 2 are fixed by rotating the threaded rod 11, which is convenient for adjustment according to coal mine roof cracks of different widths during actual use, improves the applicability and flexibility during use, and is convenient and fast to operate, reduces construction time, and improves work efficiency, and then the first grouting pipe 6 and the second grouting pipe 9 are inserted into the interior of the crack, and are connected to the first grouting pipe 6 and the second grouting pipe 9 through external grouting equipment, The slurry is poured into the interior of the crack, and the first sealing strip 5 and the second sealing strip 8 are tightly fitted with the top plate, so that the slurry can be prevented from leaking through the joint of the first baffle plate 1 and the second baffle plate 2, thereby improving the sealing effect and avoiding the waste of slurry. The first sealing ring 7 and the second sealing ring 10 are tightly fitted with the surfaces of the first grouting pipe 6 and the second grouting pipe 9 to prevent the slurry from flowing out through the joint of the first grouting pipe 6 and the second grouting pipe 9, and also improve the quality of the sealing. The first baffle plate 1 and the second baffle plate 2 are supported by the first support column 12 and the second support column 13 to ensure stability during the grouting process, thereby improving practicality.

[0037] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. Grouting and plugging equipment for coal mine roof cracks, characterized in that: The invention comprises a first baffle (1), a second baffle (2) being arranged at the right end of the first baffle (1), protruding plates (3) being fixedly connected at both ends of the first baffle (1), fixing grooves (4) being provided at both ends of the second baffle (2), a first sealing strip (5) being fixedly connected to the upper surface of the first baffle (1), a second sealing strip (8) being fixedly connected to the upper surface of the second baffle (2), one end of the protruding plate (3) being plugged into the inner wall of the fixing groove (4), and a threaded rod (11) being threadedly connected to the inner wall of the second baffle (2).

2. The grouting and plugging device for coal mine roof cracks according to claim 1, characterized in that: The size of the protruding plate (3) matches the size of the fixing groove (4), and the threaded rod (11) passes through the second baffle plate (2) and is threadedly connected to the inner wall of the protruding plate (3).

3. The grouting and plugging device for coal mine roof cracks according to claim 1, characterized in that: A first grouting pipe (6) is fixedly connected to the inner wall of the first baffle plate (1), and a second grouting pipe (9) is fixedly connected to the inner wall of the second baffle plate (2).

4. The grouting and plugging device for coal mine roof cracks according to claim 3, characterized in that: The surface of the first grouting pipe (6) is sleeved with a first sealing ring (7), and the surface of the second grouting pipe (9) is sleeved with a second sealing ring (10).

5. The grouting and plugging equipment for coal mine roof cracks according to claim 4, characterized in that: The lower surface of the first sealing ring (7) is fixedly connected to the upper surface of the first baffle (1), and the lower surface of the second sealing ring (10) is fixedly connected to the upper surface of the second baffle (2).

6. The grouting and plugging equipment for coal mine roof cracks according to claim 5, characterized in that: A first support column (12) is fixedly connected to the bottom of the first baffle (1), and the number of the first support columns (12) is two, and the two first support columns (12) are symmetrically distributed with the first baffle (1) as the center.

7. The grouting and plugging device for coal mine roof cracks according to claim 5, characterized in that: A second support column (13) is fixedly connected to the bottom of the second baffle plate (2), and the number of the second support columns (13) is two, and the two second support columns (13) are symmetrically distributed with the second baffle plate (2) as the center.

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