Blasting bus for detonator

Abstract

The utility model discloses a blasting bus for a detonator, which comprises an insulating protective layer, a fine metal net, three copper wires, three cords and a steel wire, the fine metal net is fixedly arranged in the insulating protective layer, and the three copper wires and the three cords are arranged in the insulating protective layer and are distributed in an annular array at intervals. The three copper wires and the three ropes are all in close contact with the inner wall of the insulation protection layer, and the steel wire is arranged at the axis position of the insulation protection layer and is in close contact with the three copper wires. The explosion bus is reasonable in design and good in practicality, can effectively protect the internal copper wire when being impacted by a sharp object, improves the roundness and tensile property of the explosion bus through the rope, can effectively improve the heat resistance and flame retardance of the explosion bus, and meanwhile, the talcum powder can improve the breakdown resistance and wear resistance of the explosion bus, so that the service life of the explosion bus is prolonged, and the service life of the explosion bus is prolonged. And the service life of the blasting bus is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of screening equipment, in particular to a blasting busbar for detonators. Background Art

[0002] The blasting busbar is a special conductor that connects the detonating power supply and the regional line or branch line of the blasting network in the electric blasting network. The blasting busbar and the blasting sub-wire are all detonating wires. In addition, it is also called blasting wire, detonating wire, blasting copper core wire, etc. The flame-retardant blasting busbar and sub-wire for mining are available in a variety of specifications: single strand, double strand, pure copper, galvanized, and digital tube copper core. It is suitable for all kinds of mining, highway construction, tunnel excavation, directional blasting, loess plateau geological exploration and blasting, etc. It has the advantages of easy laying, easy polarization, and convenient connection. During the laying process of the existing blasting busbar, there is a hidden danger of being scratched or cut by rolling stones, which affects the normal operation of the blasting. To this end, we propose a blasting busbar for detonators to solve the above problems. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the deficiencies in the prior art, the utility model provides a blasting busbar for detonators, which solves the problem that the blasting busbar may be scratched or cut by falling stones during the laying process, thus affecting the normal operation of the blasting.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a blasting busbar for detonators, comprising an insulating protective layer, a fine metal mesh, three copper wires, three ropes and a steel wire, wherein the fine metal mesh is fixedly installed inside the insulating protective layer, the three copper wires and the three ropes are all arranged inside the insulating protective layer and distributed in an interval annular array, the three copper wires and the three ropes are all in close contact with the inner wall of the insulating protective layer, and the steel wire is arranged at the axial position of the insulating protective layer and in close contact with the three copper wires.

[0007] Preferably, the insulating protective layer is made of flame-retardant insulating polyvinyl chloride, and the steel wire is galvanized low-carbon steel wire.

[0008] Preferably, the thickness of the insulating protective layer is 2 mm.

[0009] Preferably, the three copper wires are all fixedly mounted with an insulating sheath made of flame-retardant insulating polyvinyl chloride material.

[0010] Preferably, the three insulating outer skins are all wrapped with a heat insulation layer.

[0011] Preferably, the gaps in the insulating protective layer are filled with talcum powder.

[0012] (III) Beneficial effects

[0013] The utility model provides a blasting busbar for detonators, which has the following beneficial effects:

[0014] (1) The blasting busbar for detonators is composed of an insulating protective layer, a fine metal mesh, three copper wires, three wire ropes and a steel wire. When the blasting busbar is impacted by a sharp object, the internal copper wires can be effectively protected, and the roundness and tensile strength of the blasting busbar can be improved by the wire ropes.

[0015] (2) The blasting busbar for detonators can effectively improve the heat resistance and flame retardancy of the blasting busbar by utilizing the combined effect of the heat insulation layer and the talcum powder. At the same time, the talcum powder can increase the penetration resistance and wear resistance of the blasting busbar, thereby extending the service life of the blasting busbar. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model from the side.

[0018] In the figure: 1. Insulating protective layer; 2. Fine metal mesh; 3. Copper wire; 4. Wire rope; 5. Steel wire; 6. Insulating outer skin; 7. Thermal insulation layer; 8. Talcum powder. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figure 1-2 As shown, the utility model provides a technical solution: a blasting busbar for detonators, comprising an insulating protective layer 1, a fine metal mesh 2, three copper wires 3, three wire ropes 4 and a steel wire 5, the insulating protective layer 1 is made of flame-retardant insulating polyvinyl chloride, the steel wire 5 is a galvanized low-carbon steel wire, the insulating protective layer 1 is 2 mm thick, and the gaps in the insulating protective layer 1 are filled with talcum powder 8. By utilizing the insulating layer 7 and the talcum powder 8, the heat resistance and flame retardancy of the blasting busbar can be improved. At the same time, the talcum powder can increase the penetration resistance and wear resistance of the blasting busbar and extend the service life of the blasting busbar.

[0021] In this embodiment, the above-mentioned fine metal mesh 2 is fixedly installed inside the insulating protective layer 1, three copper wires 3 and three ropes 4 are all arranged in the insulating protective layer 1 and distributed in an interval ring array, the rope 4 is used to improve the roundness and tensile strength of the blasting busbar, the three copper wires 2 and the three ropes 3 are all in close contact with the inner wall of the insulating protective layer 1, the steel wire 5 is arranged at the axial position of the insulating protective layer 1 and in close contact with the three copper wires 3, the three copper wires 3 are all fixedly installed with an insulating sheath 6 made of flame-retardant insulating polyvinyl chloride material, and the three insulating sheaths 6 are all wrapped with a thermal insulation layer 7.

[0022] Through the above structure, a blasting busbar for detonators provided by the utility model can effectively protect the internal copper wire 3 when impacted by a sharp object, and improve the roundness and tensile strength of the blasting busbar through the wire rope 4, and can also effectively improve the heat resistance and flame retardancy of the blasting busbar. At the same time, the talcum powder 8 can increase the penetration resistance and wear resistance of the blasting busbar, and extend the service life of the blasting busbar. When used specifically, by utilizing the combined effect of the fine metal mesh 2, the thermal insulation layer 7 and the talcum powder 8, the penetration resistance of the blasting busbar can be increased, and when impacted by a sharp object, the copper wire 3 can be effectively protected, and the roundness and tensile strength of the blasting busbar can be improved by using the wire rope 4.

[0023] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope recorded in the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A blasting busbar for detonators, characterized in that: The invention comprises an insulating protective layer (1), a fine metal mesh (2), three copper wires (3), three wire ropes (4) and a steel wire (5); the fine metal mesh (2) is fixedly installed inside the insulating protective layer (1); the three copper wires (3) and the three wire ropes (4) are all arranged inside the insulating protective layer (1) and distributed in an interval annular array; the three copper wires (3) and the three wire ropes (4) are all in close contact with the inner wall of the insulating protective layer (1); and the steel wire (5) is arranged at the axial center position of the insulating protective layer (1) and in close contact with the three copper wires (3).

2. The blasting busbar for detonators according to claim 1, characterized in that: The insulating protective layer (1) is made of flame-retardant insulating polyvinyl chloride, and the steel wire (5) is galvanized low-carbon steel wire.

3. The blasting busbar for detonators according to claim 2, characterized in that: The thickness of the insulating protective layer (1) is 2 mm.

4. The blasting busbar for detonators according to claim 1, characterized in that: The three copper wires (3) are all fixedly mounted with an insulating sheath (6) made of flame-retardant insulating polyvinyl chloride material.

5. The blasting busbar for detonators according to claim 4, characterized in that: The three insulating outer skins (6) are all wrapped with a heat insulation layer (7).

6. The blasting busbar for detonators according to claim 3, characterized in that: The gaps in the insulating protective layer (1) are filled with talcum powder (8).

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