Hole packer for large-diameter blast hole of coal rock

Abstract

The utility model discloses a hole packer for a coal rock large-diameter blast hole, which relates to the technical field of coal rock blasting and comprises a steel wire rubber tube, a first plug core is arranged on the inner side of one end of the steel wire rubber tube, a plurality of first fastening rings are wrapped outside the steel wire rubber tube outside the first plug core, and a second plug core is arranged on the inner side of the other end of the steel wire rubber tube. And a plurality of second fastening rings are mounted outside the steel wire rubber tube outside the second plug core in a coating manner. According to the device, the supporting assembly is arranged, the fixed handle is rotated, the fixed handle drives the rotating column to rotate through the rotating rod, along with rotation of the rotating column, the cambered surface column synchronously rotates along with the rotating column, the cambered surface column jacks up the pushing column through the rotating ball, and then the steel wire rubber pipe is supported through the elastic metal sheet; the control valve is opened, so that external water flow enters the steel wire rubber pipe through the water inlet pipe, the one-way valve and the water conveying pipe, the water flow is slowly injected into the steel wire rubber pipe, and then sealing treatment is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal rock blasting, in particular to a hole sealer for large-diameter blasting holes of coal and rock. Background Art

[0002] Rock burst prevention and control technologies are divided into prevention technologies and timely emergency relief technologies. For potential dangerous areas, targeted prevention technologies are usually adopted in advance to treat coal and rock at a certain distance ahead of the working face to avoid excessive stress concentration and energy accumulation in coal and rock, thereby avoiding sudden impact-type damage to coal and rock, leading to rock burst disasters, and ensuring that prevention technical measures play a role in reducing or eliminating the impact hazard. Prevention technologies are divided into coal side pressure relief technology, bottom coal pressure relief technology, and overburden pre-cracking technology. Coal side pressure relief blasting or large-diameter drilling pressure relief can be selected for coal side according to the mechanical properties of the regional coal body; bottom coal pressure relief blasting or large-diameter drilling pressure relief can be selected for bottom coal; pre-cracking blasting technology is adopted for the top and bottom plates. During the mining process of the working face, if the monitored mine pressure shows abnormalities or it is judged that there is an impact hazard in the area, timely emergency relief technical measures should be taken to eliminate or reduce the impact hazard.

[0003] Application No.: CN202321163949.4 discloses a hole sealer for large-diameter blasting holes in coal and rock. The hole sealer is mainly composed of a wire hose, a plugging core, a one-way valve, a water injection pipe, a nylon seat and other components. By adopting a water injection pressurized sealing method, the large-diameter blasting hole can be sealed tightly and conveniently and effectively. At the same time, by adding a nylon seat to the side of the hole sealer close to the explosive, the hole sealer can effectively avoid the influence of static electricity during the explosion of the explosive, further ensuring the sealing effect of the blasting hole and improving the overall safety of the sealing operation. Therefore, the hole sealer has good practicality.

[0004] However, the above device only seals by water injection pressure, and has limited supporting effect on the blasting hole. Therefore, it is necessary to propose a sealer for large-diameter blasting holes in coal and rock. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a hole sealer for large-diameter blasting holes in coal and rock.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A hole sealer for large-diameter blasting holes in coal and rock, comprising a steel wire hose, a first plugging core is arranged on the inner side of one end of the steel wire hose, a plurality of first fastening rings are installed on the outer covering of the steel wire hose outside the first plugging core, a second plugging core is arranged on the inner side of the other end of the steel wire hose, a plurality of second fastening rings are installed on the outer covering of the steel wire hose outside the second plugging core, a supporting assembly is arranged between the first plugging core and the second plugging core, and a water filling assembly for filling water into the steel wire hose is arranged outside the first plugging core.

[0008] Preferably, the support assembly comprises a rotating column movably arranged in the steel wire hose, one end of the rotating column is rotatably connected to the second plugging core, and the other end of the rotating column is coaxially fixedly connected to a rotating rod, and the rotating rod rotates and penetrates the first plugging core;

[0009] A fixed handle is fixedly installed at the end of the rotating rod, a plurality of arcuate columns are evenly and equidistantly arranged on the outer surface of the rotating column, a plurality of the arcuate columns are integrated with the rotating column, a plurality of push columns are evenly and equidistantly arranged between adjacent arcuate columns, and a rotating ball is rotatably installed at the bottom end of the push column;

[0010] The outer wall of the rotating ball is tangent to the outer wall of the adjacent arc column, and an elastic metal sheet is fixedly installed at the other end of the arc column, and the outer wall of the elastic metal sheet is in contact with the inner wall of the steel wire hose;

[0011] It is used to strengthen the support for the steel wire hose. The fixed handle is rotated, and the fixed handle drives the rotating column to rotate through the rotating rod. As the rotating column rotates, the arc column rotates synchronously with the rotating column. The arc column pushes the column up through the rotating ball, and then supports the steel wire hose through the elastic metal sheet.

[0012] Preferably, the water filling assembly comprises a water pipe, a one-way valve, a water inlet pipe and a control valve, the water pipe passes through the first plugging core to the steel wire hose, the one-way valve is fixedly installed on the side of the first plugging core away from the second plugging core, the water pipe is connected to the one-way valve, the water inlet pipe is connected to the other end of the one-way valve, the control valve is fixedly installed on the water inlet pipe, and the one-way valve only allows water to flow from the water inlet pipe into the water pipe;

[0013] It is used to achieve water injection pressurized sealing of the steel wire rubber hose. Open the control valve to allow the external water to flow into the steel wire rubber hose through the water inlet pipe, one-way valve and water delivery pipe, so that the water flow is slowly injected into the steel wire rubber hose, thereby achieving sealing.

[0014] Preferably, the outer diameters of the first plugging core and the second plugging core are consistent with the inner diameter of the steel wire hose when it is relaxed, and the outer diameter of the steel wire hose when it is relaxed is consistent with the inner diameters of the first fastening ring and the second fastening ring.

[0015] The utility model has the following beneficial effects:

[0016] 1. By setting the support assembly and rotating the fixed handle, the fixed handle drives the rotating column to rotate through the rotating rod. As the rotating column rotates, the arc column rotates synchronously with the rotating column. The arc column pushes the column up through the rotating ball, and then supports the wire hose through the elastic metal sheet.

[0017] 2. By setting up a water filling component and opening the control valve, the external water flows into the steel wire hose through the water inlet pipe, the one-way valve and the water delivery pipe, so that the water flows slowly into the steel wire hose, thereby achieving sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the external structure of a hole sealer for large-diameter blasting holes in coal and rock proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the separation structure of the steel wire hose of the utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the steel wire hose of the utility model;

[0021] Figure 4 It is a schematic diagram of the internal side structure of the steel wire hose of the utility model.

[0022] In the figure: 1. Steel wire hose; 2. First plugging core; 3. First fastening ring; 4. Second plugging core; 5. Second fastening ring; 6. Support assembly; 61. Rotating column; 62. Rotating rod; 63. Fixed handle; 64. Arc column; 65. Push column; 66. Rotating ball; 67. Elastic metal sheet; 7. Water filling assembly; 71. Water pipe; 72. One-way valve; 73. Water inlet pipe; 74. Control valve. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] Reference Figure 1-4A sealing device for large-diameter blasting holes in coal and rock comprises a steel wire hose 1, a first plugging core 2 is arranged on the inner side of one end of the steel wire hose 1, a plurality of first fastening rings 3 are installed on the outer side of the steel wire hose 1 outside the first plugging core 2, a second plugging core 4 is arranged on the inner side of the other end of the steel wire hose 1, a plurality of second fastening rings 5 ​​are installed on the outer side of the steel wire hose 1 outside the second plugging core 4, a supporting assembly 6 is arranged between the first plugging core 2 and the second plugging core 4, and a water filling assembly 7 for filling water into the steel wire hose 1 is arranged outside the first plugging core 2.

[0026] The support assembly 6 includes a rotating column 61 movably arranged in the wire hose 1 , one end of the rotating column 61 is rotatably connected to the second plugging core 4 , and the other end of the rotating column 61 is coaxially fixedly connected to a rotating rod 62 , which rotates through the first plugging core 2 .

[0027] A fixed handle 63 is fixedly installed at the end of the rotating rod 62, and a plurality of arcuate columns 64 are evenly and equidistantly arranged on the outer surface of the rotating column 61. The arcuate columns 64 are integrated with the rotating column 61, and a plurality of pushing columns 65 are evenly and equidistantly arranged between adjacent arcuate columns 64. A rotating ball 66 is rotatably installed at the bottom end of the pushing column 65.

[0028] The outer wall of the rotating ball 66 is tangent to the outer wall of the adjacent arc column 64 . An elastic metal sheet 67 is fixedly mounted on the other end of the arc column 64 . The outer wall of the elastic metal sheet 67 is in contact with the inner wall of the steel wire hose 1 .

[0029] The water filling assembly 7 includes a water pipe 71, a one-way valve 72, a water inlet pipe 73 and a control valve 74. The water pipe 71 runs through the first plugging core 2 to the steel wire hose 1. The one-way valve 72 is fixedly installed on the side of the first plugging core 2 away from the second plugging core 4. The water pipe 71 is connected to the one-way valve 72, and the water inlet pipe 73 is connected to the other end of the one-way valve 72. The control valve 74 is fixedly installed on the water inlet pipe 73. The one-way valve 72 only allows water to flow from the water inlet pipe 73 into the water pipe 71.

[0030] The outer diameters of the first plugging core 2 and the second plugging core 4 are consistent with the inner diameter of the steel wire hose 1 when it is relaxed. The outer diameter of the steel wire hose 1 when it is relaxed is consistent with the inner diameters of the first fastening ring 3 and the second fastening ring 5.

[0031] In the utility model, the fixed handle 63 is rotated, and the fixed handle 63 drives the rotating column 61 to rotate through the rotating rod 62. As the rotating column 61 rotates, the arc column 64 rotates synchronously with the rotating column 61. The arc column 64 lifts the push column 65 through the rotating ball 66, and then supports the wire hose 1 through the elastic metal sheet 67, opens the control valve 74, and allows the external water flow to enter the wire hose 1 through the water inlet pipe 73, the one-way valve 72 and the water pipe 71, so that the water flow is slowly injected into the wire hose 1, thereby achieving sealing.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sealing device for large-diameter coal and rock blasting holes, comprising a steel wire hose (1), characterized in that: A first plugging core (2) is arranged on the inner side of one end of the steel wire rubber hose (1), and a plurality of first fastening rings (3) are installed on the outer side of the steel wire rubber hose (1) outside the first plugging core (2). A second plugging core (4) is arranged on the inner side of the other end of the steel wire rubber hose (1), and a plurality of second fastening rings (5) are installed on the outer side of the steel wire rubber hose (1) outside the second plugging core (4). A supporting component (6) is arranged between the first plugging core (2) and the second plugging core (4), and a water filling component (7) for filling water into the steel wire rubber hose (1) is arranged outside the first plugging core (2).

2. A sealing device for large-diameter coal and rock blasting holes according to claim 1, characterized in that: The support assembly (6) comprises a rotating column (61) movably arranged in the steel wire rubber hose (1), one end of the rotating column (61) is rotatably connected to the second plugging core (4), and the other end of the rotating column (61) is coaxially fixedly connected to a rotating rod (62), and the rotating rod (62) rotatably penetrates the first plugging core (2).

3. A sealer for large-diameter coal and rock blasting holes according to claim 2, characterized in that: A fixed handle (63) is fixedly installed at the end of the rotating rod (62), a plurality of arcuate columns (64) are evenly and equidistantly arranged on the outer surface of the rotating column (61), the arcuate columns (64) and the rotating column (61) are integrated, a plurality of push columns (65) are evenly and equidistantly arranged between adjacent arcuate columns (64), and a rotating ball (66) is rotatably installed at the bottom end of the pushing column (65).

4. A sealer for large-diameter coal and rock blasting holes according to claim 3, characterized in that: The outer wall of the rotating ball (66) is tangent to the outer wall of the adjacent arc column (64); an elastic metal sheet (67) is fixedly mounted on the other end of the arc column (64); and the outer wall of the elastic metal sheet (67) is in contact with the inner wall of the steel wire hose (1).

5. The sealer for large-diameter coal and rock blasting holes according to claim 1, characterized in that: The water filling assembly (7) comprises a water pipe (71), a one-way valve (72), a water inlet pipe (73) and a control valve (74); the water pipe (71) passes through the first plugging core (2) to the steel wire rubber hose (1); the one-way valve (72) is fixedly mounted on the side of the first plugging core (2) away from the second plugging core (4); the water pipe (71) is in communication with the one-way valve (72); the water inlet pipe (73) is in communication with the other end of the one-way valve (72); the control valve (74) is fixedly mounted on the water inlet pipe (73); and the one-way valve (72) only allows water to flow from the water inlet pipe (73) into the water pipe (71).

6. The sealer for large-diameter coal and rock blasting holes according to claim 1, characterized in that: The outer diameters of the first plugging core (2) and the second plugging core (4) are consistent with the inner diameter of the steel wire hose (1) when it is relaxed, and the outer diameter of the steel wire hose (1) when it is relaxed is consistent with the inner diameters of the first fastening ring (3) and the second fastening ring (5).

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