Downhole blasting anti-punching device

Abstract

The utility model discloses an underground blasting anti-punching device which comprises a wheel body, a flexible belt and plugging assemblies, partition plates are arranged on the two sides of the wheel body respectively, one end of the flexible belt is connected with the wheel body, the flexible belt can be wound on the wheel body, the number of the plugging assemblies is multiple, and the plugging assemblies are distributed on the flexible belt at intervals. The plugging assembly comprises a rubber barrel connected with the flexible belt and an abutting rod movably inserted into the rubber barrel, a plurality of fixing strips are arranged on the inner wall of the rubber barrel, and the outer wall of the abutting rod can abut against the multiple fixing strips; the rubber barrel is firstly knocked into a blast hole through external force application, then the abutting rod is knocked into the rubber barrel through force application, so that when the outer wall of the abutting rod abuts against the multiple fixing strips, the fixing strips are pushed outwards, the rubber barrel is driven to deform and then makes full contact with the inner wall of the discharge hole, the blocking effect is good, and after blasting is completed, the rubber barrel can be recycled and reused; and meanwhile, the flexible belt is wound on the wheel body for winding, so that the device has the characteristic of being convenient to take and place.

Description

Technical Field

[0001] The utility model relates to the technical field of blasting, in particular to an underground blasting anti-punching device. Background Technique

[0002] During the process of underground coal mining, explosives are used to blast the ore body. After drilling a certain depth into the ore body, the explosives are filled into the blast holes. In order to improve the blasting quality and efficiency, the blast holes are blocked so that the blasting force is concentrated around the gunpowder.

[0003] There are many factors affecting the blasting effect. The blocking of on-site blasting holes mostly relies on past construction experience. In the prior art, the stemming is pounded into the drilling hole in multiple segments, which is cumbersome to operate, and the pounding quality is inconsistent, easily leading to the occurrence of punching holes and causing the leakage of blasting energy. Therefore, the utility model proposes an underground blasting anti-punching device that can solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide an underground blasting anti-punching device to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an underground blasting anti-punching device, including:

[0006] A wheel body, with partitions arranged on both sides thereof;

[0007] A flexible belt, one end of which is connected to the wheel body, and the flexible belt can be wound around the wheel body;

[0008] A plurality of blocking components, which are spaced apart and distributed on the flexible belt. The blocking component includes a rubber cylinder connected to the flexible belt and a resisting rod movably inserted into the rubber cylinder. A plurality of fixing strips are arranged on the inner wall of the rubber cylinder, and the outer wall of the resisting rod can abut against the plurality of fixing strips.

[0009] As a preferred technical solution, a supporting rod is rotatably connected to each partition.

[0010] As a preferred technical solution, the plurality of fixing strips extend out of the rubber cylinder and are respectively connected with fixing blocks.

[0011] As a preferred technical solution, an insertion section is arranged at the inner end of the resisting rod, and the outer diameter of the insertion section gradually expands from the inside to the outside.

[0012] As a preferred technical solution, a contact plate is arranged at the outer end of the resisting rod.

[0013] As a preferred technical solution, a pulling handle is arranged at the other end of the flexible belt.

[0014] As a preferred technical solution, a connecting rod is provided on the pulling handle, and a plurality of positioning holes are provided on the partition plate. The connecting rod can be screwed to one of the positioning holes.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] First, the rubber cylinder is knocked into the blast hole by external force, and then the resisting rod is knocked into the rubber cylinder by force. When the outer wall of the resisting rod abuts against multiple fixing strips, the fixing strips are pushed outward, driving the rubber cylinder to deform and fully contact the inner wall of the row of holes. The blocking effect is good. After the blasting is completed, it can be recycled and reused. It does not rely on the stemming in the underground blasting construction site, and has good applicability. At the same time, the flexible belt is wound around the wheel body for winding, which has the characteristics of being convenient to take and place. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 It is a schematic diagram of the wheel body structure of the present utility model;

[0019] Figure 3 It is a schematic diagram of the rubber cylinder structure of the present utility model;

[0020] Figure 4 It is a schematic diagram of the resisting rod inserted into the rubber cylinder of the present utility model;

[0021] In the figure: 10, wheel body; 11, partition plate; 12, positioning hole; 13, supporting rod; 20, flexible belt; 21, pulling handle; 22, connecting rod; 30, plugging assembly; 31, rubber cylinder; 311, fixing strip; 312, fixing block; 32, resisting rod; 321, inserting section; 322, contact plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-4

[0024] Embodiment 1 provides an underground blasting anti-punching device:

[0025] Partition plates 11 are respectively arranged on both sides of the wheel body 10. The outer diameter of the partition plate 11 is greater than the outer diameter of the wheel body 10, that is, a concave portion is formed between the two sets of partition plates 11 relative to the ring plate.

[0026] One end of the flexible belt 20 is connected to the wheel body 10. The flexible belt 20 can be wound around the wheel body 10. The flexible belt 20 is preferably made of materials such as textiles. By being wound around the concave part, it is blocked by the two groups of partition plates 11 and will not loosen and fall off the wheel body 10. That is, the situation of the flexible belt 20 being knotted and wound is effectively avoided.

[0027] There are multiple groups of plugging components 30. The multiple groups of plugging components 30 are distributed at intervals on the flexible belt 20. The plugging component 30 includes a rubber cylinder 31 and a resisting rod 32. The rubber cylinder 31 is connected to the flexible belt 20. The resisting rod 32 is movably inserted into the rubber cylinder 31. Multiple fixing strips 311 are arranged on the inner wall of the rubber cylinder 31. The outer wall of the resisting rod 32 can abut against the multiple fixing strips 311. When the outer wall of the resisting rod 32 abuts against the multiple fixing strips 311, the fixing strips 311 can be pushed outwards, and the multiple fixing strips 311 thus pull the rubber cylinder 31 to deform.

[0028] Specifically, when plugging the blast hole, the flexible belt 20 is relaxed and unfolded from the wheel body 10, so that the plugging components 30 respectively correspond to a row of holes. First, the rubber cylinder 31 is knocked into the blast hole by external force, and then the resisting rod 32 is knocked into the rubber cylinder 31 by force. When the outer wall of the resisting rod 32 abuts against the multiple fixing strips 311, the fixing strips 311 are pushed outwards, driving the rubber cylinder 31 to deform and fully contact with the inner wall of the row of holes. The plugging effect is good. And after the blasting is completed, it can be recycled and reused, without relying on the stemming in the underground blasting construction site, and has good applicability. At the same time, by winding the flexible belt 20 around the wheel body 10 for winding, it has the characteristics of being convenient to take and place;

[0029] Among them, when winding the flexible belt, the rubber cylinder 31 and the resisting rod 32 are twisted to be flush with the wheel body 10, effectively reducing the occupied space. The distance between two adjacent groups of plugging components 30 on the flexible belt 20 is greater than the distance between two adjacent blast holes, avoiding the situation that it cannot be used due to too small a distance. Since the flexible belt 20 can deform, when plugging the blast hole, the flexible belt 20 can be pulled as needed.

[0030] Embodiment 2 provides an underground blasting anti-punching device:

[0031] A supporting rod 13 is rotatably connected to each group of partition plates 11, which is convenient for supporting through the supporting rod 13 and then rotating the partition plate 11 to drive the wheel body 10 to rotate and unwind and wind the flexible belt 20, with good operation convenience.

[0032] Multiple fixing strips 311 extend out of the rubber cylinder 31 and are respectively connected with fixing blocks 312. The fixing blocks 312 provide a force application point for knocking the rubber cylinder 31 into the blast hole.

[0033] The inner end of the abutting rod 32 is provided with an insertion section 321, the outer diameter of the insertion section 321 gradually expands from the inside to the outside, the outer end of the abutting rod 32 is provided with a contact plate 322, the contact plate 322 provides a force application point for knocking the abutting rod 32 into the rubber cylinder 31, and the insertion section 321 facilitates the insertion of the abutting rod 32 into the rubber cylinder 31.

[0034] The other end of the flexible belt 20 is provided with a pulling handle 21, the pulling handle 21 is provided with a connecting rod 22, the partition plate 11 is provided with a plurality of positioning holes 12, and the connecting rod 22 can be screwed to one of the positioning holes 12;

[0035] The position of the flexible leading end can be quickly found through the provided pulling handle 21, and the flexible belt 20 can be laid on a plurality of blast holes for placement by taking the pulling handle 21. When the flexible belt 20 is wound up, the position is fixed by screwing the connecting rod 22 to one of the positioning holes 12.

[0036] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An underground blasting anti-punching device, characterized in that: include: The wheel body (10) has partition plates (11) disposed on both sides thereof; A flexible belt (20), one end of which is connected to the wheel body (10), and the flexible belt (20) can be wound around the wheel body (10); The plugging components (30) have multiple groups and are spaced apart on the flexible belt (20). The plugging components (30) include a rubber sleeve (31) connected to the flexible belt (20) and a push rod (32) movably inserted into the rubber sleeve (31). The inner wall of the rubber sleeve (31) is provided with multiple fixing strips (311), and the outer wall of the push rod (32) can be pushed against the multiple fixing strips (311).

2. The underground blasting anti-punching device according to claim 1, characterized in that: Each group of partition plates (11) is rotatably connected with a supporting rod (13).

3. The underground blasting anti-punching device according to claim 1, characterized in that: The plurality of fixing strips (311) extend outward from the rubber sleeve (31) and are respectively connected to fixing blocks (312).

4. The underground blasting anti-punching device according to claim 1, characterized in that: The inner end of the support rod (32) is provided with an inserting section (321), and the outer diameter of the inserting section (321) gradually increases from the inside to the outside.

5. The underground blasting anti-punching device according to claim 4, characterized in that: A contact plate (322) is provided at the outer end of the stop rod (32).

6. The underground blasting anti-punching device according to claim 1, characterized in that: The other end of the flexible belt (20) is provided with a pulling handle (21).

7. The underground blasting anti-punching device according to claim 6, characterized in that: The pulling handle (21) is provided with a connecting rod (22), and the partition plate (11) is provided with a plurality of positioning holes (12). The connecting rod (22) can be screwed to one of the positioning holes (12).

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