A blasting hole plugging device

Abstract

The utility model discloses a kind of blasting hole blocking devices, it is related to blasting technical field, including plugging component, adjusting assembly;Plugging component includes plugging piece of increasing outer diameter, plugging sleeve, connecting plate;Adjusting assembly includes adjusting piece, filler, adjusting piece is rotatably connected with connecting plate, adjusting piece rotates under external force to drive connecting plate to move towards plugging piece, and then the internal volume of plugging space is reduced to make the outer diameter of plugging sleeve increase and the inner wall of blasting hole abut;By setting plugging cone head of increasing outer diameter, plugging sleeve, in the outer diameter range interval of plugging cone head, plugging sleeve is suitable for the blasting hole plugging in the inner diameter interval, plugging cone head, plugging sleeve carry out first plugging to blasting hole, adjusting piece drives connecting plate to move towards plugging cone head, so that filler expands the external dimension of plugging sleeve located in blasting hole and blasting hole abuts again, to carry out secondary plugging to blasting hole, improve the airtightness of plugging sleeve and blasting hole, to improve plugging effect.

Description

Technical Field

[0001] This utility model relates to the field of blasting technology, specifically to a blasting hole plugging device. Background Technology

[0002] Blasting is a technique that utilizes the compression, loosening, destruction, throwing, and destructive effects produced by the explosion of explosives in air, water, soil, rock, or other materials to achieve a desired objective. When an explosive charge or charge explodes in soil, rock, or a structure, it causes compression, deformation, destruction, loosening, and throwing of the material. Blasting is primarily used in earthwork engineering and the demolition of metal buildings and structures. Traditional methods of plugging blasting holes rely on locally sourced materials, primarily crushed stone, fine sand, and powder generated during drilling. However, these materials are loose and prone to blasting and releasing explosive energy from the borehole, resulting in poor blasting effectiveness or blasting failure.

[0003] Utility model patent CN222069466U discloses a blast hole plugging device, including a main component; the main component includes: a rock mass with blast holes formed thereon; a fixed plate disposed on the rock mass; a threaded rod rotatably connected to the fixed plate; a pressure relief pipe disposed on the fixed plate; a sealing component disposed on the threaded rod; the sealing component includes: a plate body one rotatably connected to one end of the threaded rod; a plugging structure disposed on the plate body one; a plate body two rotatably connected to the plate body one; a slider threadedly connected to the threaded rod; a plate body three rotatably connected to the slider; a plate body four disposed on the plugging structure, and both plate bodies two and three are rotatably connected to plate body four; and a rod fixedly connected between the fixed plate and the plate body one. In use, after fixing the plate to the rock mass, the blast hole is pre-sealed. Then, the threaded rod is rotated to make the sealing structure fit tightly against the blast hole, providing a secondary seal. This completes the installation and has the advantages of conveniently sealing blast holes without occupying a large area, thus improving safety. It solves the safety problems of existing blast hole blocking devices and the problem of the device malfunctioning due to dust. In this patent, the plate is located inside the blast hole, so the size of the plate is smaller than the size of the blast hole, resulting in a gap between the plate and the blast hole. When the sealing structure is increased in size and comes into contact with the blast hole for secondary sealing by the spaced-out plate four, the sealing structure is not a complete circular structure, and there is also a gap between the sealing structure and the hole wall, making it difficult to seal the blast hole tightly. Utility Model Content

[0004] The main purpose of this invention is to provide a blast hole plugging device to solve the problem that existing blast hole plugging structures are unable to tightly seal blast holes.

[0005] To achieve the above objectives, this utility model provides a blast hole plugging device, comprising:

[0006] The sealing assembly includes a sealing element with an increasing outer diameter and an elastic sealing sleeve disposed outside the sealing element. The sealing sleeve has the same shape as the sealing element, and the sealing sleeve and the sealing element are wrapped inside each other, forming a sealed sealing space between the outside of the sealing element and the inside of the sealing sleeve. A connecting plate is provided inside the bottom end of the sealing sleeve away from the sealing element.

[0007] The adjustment assembly includes an adjustment component that penetrates the sealing component and a filler component disposed within the sealing space. The filler component is fluid. The adjustment component is rotatably connected to the connecting plate. Under the action of external force, the adjustment component rotates to drive the connecting plate toward the sealing component, thereby reducing the internal volume of the sealing space so that the outer diameter of the sealing sleeve increases and abuts against the inner wall of the rupture hole.

[0008] As a further improvement of this utility model, the sealing component includes a sealing cone, the outer diameter of the bottom end of the sealing cone is greater than the outer diameter of the top end, and the length of the sealing sleeve is greater than the length of the sealing cone.

[0009] As a further improvement of this utility model, the adjusting component includes an adjusting screw threadedly connected to the sealing cone, and one end of the adjusting screw located in the sealing space is rotatably connected to the connecting plate.

[0010] As a further improvement of this utility model, the filling element includes water or gas, and the volume of the water or gas is greater than the volume of the sealing space.

[0011] As a further improvement of this utility model, the top of the sealing sleeve is detachably provided with a push plate, and the push plate is in clearance fit with the rupture hole.

[0012] As a further improvement of this utility model, it also includes a fixing sleeve, which is provided with a connecting buckle and a locking element. One end of the fixing sleeve passes through the connecting buckle to form a ring that wraps around the outside of the sealing sleeve.

[0013] As a further improvement of this utility model, an elastic sealing sleeve is provided between the connecting plate and the sealing cone, and the two ends of the elastic sealing sleeve are fixedly connected to the connecting plate and the sealing cone, respectively.

[0014] The beneficial effects of this utility model are reflected in:

[0015] By setting sealing cones and sealing sleeves with increasing outer diameters, the sealing cones and sealing sleeves are adapted to the sealing of blast holes within the range of their outer diameters and inner diameters. The sealing cones and sealing sleeves perform the first sealing of the blast hole. Then, by adjusting the connecting plate, the connecting plate moves towards the sealing cones, causing the filling material to expand the outer dimension of the sealing sleeve inside the blast hole and abut against the blast hole again, thereby performing a second sealing of the blast hole. This improves the sealing tightness between the sealing sleeve and the blast hole, thus enhancing the sealing effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a blast hole plugging device according to the present invention;

[0017] Figure 2 This is a schematic diagram of the internal structure of a blast hole plugging device according to the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of a blast hole plugging device according to the present invention;

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Sealing component; 101. Sealing cone; 2. Sealing sleeve; 3. Sealing space; 4. Connecting plate; 5. Adjusting component; 501. Adjusting screw; 502. Connecting channel; 6. Filler; 7. Bursting hole; 8. Connecting sleeve; 9. Retaining ring; 10. Protruding ring; 11. Through hole; 12. Valve; 13. Push plate; 14. Snap-fit ​​sleeve; 15. Fixing clamp; 16. Connecting buckle; 17. Locking component; 18. Locking screw hole; 19. Elastic sealing sleeve; 20. Connector. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are merely some, not all, of the embodiments of this utility model. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0022] In one embodiment, see Figure 1 The present invention relates to a blast hole plugging device, comprising a plugging component and an adjusting component.

[0023] The sealing assembly includes a sealing element 1 with an increasing outer diameter and an elastic sealing sleeve 2 disposed outside the sealing element 1. The sealing sleeve 2 has the same shape as the sealing element 1 and is wrapped inside the sealing element 1, forming a sealed sealing space 3 between the outside of the sealing element 1 and the inside of the sealing sleeve 2. A connecting plate 4 is provided inside the bottom end of the sealing sleeve 2 away from the sealing element 1. The adjustment assembly includes an adjustment element 5 that penetrates the sealing element 1 and a filler 6 disposed in the sealing space 3. The filler 6 is fluid. The adjustment element 5 is rotatably connected to the connecting plate 4. The adjustment element 5 rotates under the action of external force to drive the connecting plate 4 to move toward the sealing element 1, thereby reducing the internal volume of the sealing space 3 so that the outer diameter of the sealing sleeve 2 increases and abuts against the inner wall of the rupture hole 7.

[0024] In blasting operations, see Figure 3 A blasting hole 7 needs to be pre-drilled. The blasting hole 7 is usually a circular hole. In order to meet the sealing requirements of blasting holes 7 with different inner diameters, a sealing element 1 with an increasing outer diameter is set to provide support for the sealing sleeve 2. After the sealing sleeve 2 and the sealing element 1 are inserted into the blasting hole 7, as the outer diameter of the sealing element 1 increases, the sealing sleeve 2 abuts against the inner wall of the blasting hole 7, completing the first sealing.

[0025] Further, see Figure 2 The sealing component 1 includes a sealing cone 101, the outer diameter of the bottom end of the sealing cone 101 is larger than the outer diameter of the top end, and the length of the sealing sleeve 2 is greater than the length of the sealing cone 101.

[0026] Preferably, both the sealing cone 101 and the sealing sleeve 2 are frustum-shaped structures, the inner wall of the sealing sleeve 2 is in contact with the outer wall of the sealing cone 101, and there is a gap between the top of the sealing sleeve 2 and the top of the sealing cone 101.

[0027] Preferably, the sealing sleeve 2 is made of elastic rubber, and the sealing cone 101 can be made of metal or wood.

[0028] Further, see Figure 2 The adjusting component 5 includes an adjusting screw 501 that is threadedly connected to the sealing cone 101. One end of the adjusting screw 501 located in the sealing space 3 is rotatably connected to the connecting plate 4.

[0029] Preferably, the sealing cone 101 has a connecting channel 502 inside, and the connecting channel 502 has an internal thread, and the adjusting screw 501 is threadedly connected to the connecting channel 502.

[0030] Preferably, the connecting plate 4 is provided with a connecting sleeve 8, the connecting sleeve 8 is provided with a retaining ring 9, the end of the adjusting screw 501 is provided with a convex ring 10, the adjusting screw 501 passes through the retaining ring 9 and is located inside the connecting sleeve 8, the convex ring 10 is located inside the connecting sleeve 8, and the outer diameter of the convex ring 10 is larger than the inner diameter of the retaining ring 9.

[0031] Preferably, the bottom end of the sealing sleeve 2 is provided with a through hole 11 for the adjusting screw 501 to pass through, and the bottom end of the sealing sleeve 2 is fixedly connected to the bottom end of the sealing cone 101.

[0032] In the above setup, the outer diameter of the frustum-shaped sealing cone 101 increases progressively. After the sealing sleeve 2 and the sealing cone 101 are inserted into the blast hole 7, the top end of the sealing sleeve 2 (the end with the smaller outer diameter) extends into the blast hole 7. As the sealing sleeve 2 extends deeper, the outer diameter of the sealing cone 101 increases, causing the sealing sleeve 2 to abut against the interior of the blast hole 7, completing the first sealing. Then, the adjusting screw 501 is rotated to move the connecting plate 4 toward the sealing cone 101. The adjusting screw 501 rotates within the connecting sleeve 8, causing the connecting plate 4 to move axially along the adjusting screw 501. The top end of the sealing sleeve 2 moves toward the sealing cone 101, reducing the original volume inside the sealing space 3. This allows the filler 6 to enter between the sealing cone 101 and the sealing sleeve 2. As the length of the sealing sleeve 2 decreases, the outer dimensions of the sealing sleeve 2 expand and abut against the blast hole 7, performing a second sealing of the blast hole 7.

[0033] Further, see Figure 2 The filler 6 includes water or gas, and the volume of the water or gas is greater than the volume of the sealing space 3.

[0034] Preferably, the outer wall of the sealing sleeve 2 is provided with a valve 12 that communicates with the sealing space 3.

[0035] Further, see Figure 3 The top of the sealing sleeve 2 is detachably provided with a push plate 13, which is in clearance fit with the blast hole 7.

[0036] Preferably, the push plate 13 is provided with a snap-fit ​​sleeve 14, which is a hollow cylinder with one end open. The snap-fit ​​sleeve 14 is interference-fitted with the sealing sleeve 2, and the top end of the sealing sleeve 2 is inserted into the snap-fit ​​sleeve 14.

[0037] In the above setup, the valve 12 is connected to an external water pump or air pump, which can fill the sealing space 3 with filling water or filling gas. As the adjusting screw 501 drives the connecting plate 4 to move toward the sealing cone 101, the filling water or filling gas is pushed into the space between the sealing cone 101 and the sealing sleeve 2, which increases the external size of the sealing sleeve 2 and makes it abut against the burst hole 7. The setting of the push plate 13 can push the filling water or filling gas in the space of the sealing sleeve 2 toward the sealing cone 101.

[0038] Furthermore, it also includes a fixing sleeve 15, which is provided with a connecting buckle 16 and a locking element 17. One end of the fixing sleeve 15 passes through the connecting buckle 16 to form a ring that wraps around the outside of the sealing sleeve 2.

[0039] Preferably, the fixing sleeve 15 is made of metal, the fixing sleeve connecting buckle 16 is located at the end of the fixing sleeve 15, the connecting buckle 16 is provided with a locking screw hole 18, and the locking member 17 is a locking stud that is threaded into the locking screw hole 18.

[0040] In the above setup, the fixing sleeve 15 is wrapped around the outer wall of the sealing sleeve 2, and the fixing sleeve 15 is moved to the bottom end (the end with the larger outer diameter) of the sealing sleeve 2 and the sealing cone 101. The fixing sleeve 15 is then tightened to tightly grip the outer wall of the sealing sleeve 2, so that the sealing sleeve 2 and the sealing cone 101 fit tightly together. The locking stud is rotated to abut against the fixing sleeve 15, thereby fixing the size of the fixing sleeve 15. The sealing sleeve 2 and the sealing cone 101 are connected through the fixing sleeve 15. To prevent water or gas from overflowing into the area of ​​the sealing sleeve 2 located on the outer wall of the blast hole 7 during the secondary sealing process; during use, two sets of fixing sleeves 15 can be set, one set located at the bottom end of the sealing cone 101, and the other set moved to the opening of the blast hole 7 and tightened on the outer wall of the sealing sleeve 2 after the sealing sleeve 2 is inserted into the blast hole 7 and abuts against the inner wall of the blast hole 7, thereby tightening the sealing sleeve 2 a second time and preventing water or gas from overflowing into the blast hole 7.

[0041] Further, see Figure 2 An elastic sealing sleeve 19 is provided between the connecting plate 4 and the sealing cone 101, and the two ends of the elastic sealing sleeve 19 are fixedly connected to the connecting plate 4 and the sealing cone 101 respectively.

[0042] Preferably, the top of the sealing cone 101 is provided with a connector 20, and the two ends of the elastic sealing sleeve 19 are respectively sleeved on the connector 20 and the connecting sleeve 8 and fixed by the tie wire, so that the filling water or filling gas will not escape from the connecting channel 502.

[0043] In this embodiment, when sealing the blast hole 7, the top of the sealing sleeve 2 and the sealing cone 101 are inserted into the blast hole 7 by holding the adjusting screw 501. As the outer diameter of the sealing sleeve 2 and the sealing cone 101 increases, the sealing sleeve 2 abuts against the inside of the blast hole 7, completing the first sealing. The fixing sleeve 15 is then tightened onto the outer wall of the sealing sleeve 2. Rotating the adjusting screw 501 moves the connecting plate 4 toward the sealing cone 101, causing the filling water or filling gas inside the sealing sleeve 2 to move toward the sealing cone 101. As the plugging cone 101 moves, the length of the plugging sleeve 2 shortens, and its external dimensions increase accordingly, abutting against the inner wall of the blast hole 7, thus completing the secondary sealing. The blast hole 7 is sealed by the plugging sleeve 2 and the plugging cone 101. The blast hole 7 within the outer diameter range of the plugging cone 101 can be sealed. The sealing is achieved by the plugging sleeve 2, the plugging cone 101, and the filler 6, so that the outer wall of the plugging sleeve 2 fits tightly against the interior of the blast hole 7, improving the sealing effect.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for plugging blast holes, characterized in that, include: The sealing assembly includes a sealing element (1) with an increasing outer diameter and an elastic sealing sleeve (2) disposed outside the sealing element (1). The sealing sleeve (2) has the same shape as the sealing element (1). The sealing sleeve (2) and the sealing element (1) are wrapped together and form a sealed sealing space (3) between the outside of the sealing element (1) and the inside of the sealing sleeve (2). A connecting plate (4) is provided inside the bottom end of the sealing sleeve (2) away from the sealing element (1). The adjustment assembly includes an adjustment member (5) that penetrates the sealing member (1) and a filler (6) disposed in the sealing space (3). The filler (6) has fluidity. The adjustment member (5) is rotatably connected to the connecting plate (4). The adjustment member (5) rotates under the action of external force to drive the connecting plate (4) to move toward the sealing member (1), thereby reducing the internal volume of the sealing space (3) so that the outer diameter of the sealing sleeve (2) increases and abuts against the inner wall of the rupture hole (7).

2. The blast hole plugging device according to claim 1, characterized in that: The sealing component (1) includes a sealing cone (101), the outer diameter of the bottom end of the sealing cone (101) is greater than the outer diameter of the top end, and the length of the sealing sleeve (2) is greater than the length of the sealing cone (101).

3. The blast hole plugging device according to claim 2, characterized in that: The adjusting component (5) includes an adjusting screw (501) threadedly connected to the sealing cone (101), and one end of the adjusting screw (501) located in the sealing space (3) is rotatably connected to the connecting plate (4).

4. The blast hole plugging device according to claim 3, characterized in that: The filler (6) includes water or gas, the volume of which is greater than the volume of the sealing space (3).

5. The blast hole plugging device according to claim 4, characterized in that: The top of the sealing sleeve (2) is detachably provided with a push plate (13), which is in clearance fit with the blast hole (7).

6. The blast hole plugging device according to claim 5, characterized in that: It also includes a fixing sleeve (15), on which a connecting buckle (16) is provided, and a locking element (17) is provided on the connecting buckle (16). One end of the fixing sleeve (15) passes through the connecting buckle (16) to form a ring that wraps around the outside of the sealing sleeve (2).

7. The blast hole plugging device according to claim 6, characterized in that: An elastic sealing sleeve (19) is provided between the connecting plate (4) and the sealing cone (101), and the two ends of the elastic sealing sleeve (19) are fixedly connected to the connecting plate (4) and the sealing cone (101) respectively.

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