An electronic detonator leg wire capable of preventing core wire short circuit
By using a diamond-shaped extrusion frame and a U-shaped elastic plate in the electronic detonator pins, and combining the quick connection function of the copper strip, the problem of short circuit in the electronic detonator pins is solved, and higher stability and reliability are achieved.
Patent Information
- Application Number
- CN202421635780.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-11
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-07-11
AI Technical Summary
Existing electronic detonator pins are prone to short-circuiting in special construction areas, especially in tunnel blasting or deep hole blasting. The insulation layer is damaged due to geological instability, causing short-circuiting of the positive electrode line and the negative electrode line.
Through the cooperation of the diamond extrusion frame and the U-shaped elastic plate, the positive electrode line and the negative electrode line are stretched open when the foot line is under pressure, so as to avoid short circuits between the positive electrode line and the negative electrode line after the insulating layer is damaged. At the same time, a copper strip is set to quickly connect when the wire is broken to ensure the stability of the circuit.
It effectively avoids the short circuit of the positive and negative electrode lines after the insulating layer is damaged, ensures the stability and reliability of the electronic detonator pins, and is suitable for construction environments with unstable geological conditions.
Smart Images
Figure CN222733462U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of detonator leg wires, and in particular relates to an electronic detonator leg wire capable of preventing core wire short circuit. Background Art
[0002] The electronic detonator leg wire includes a positive wire and a negative wire, and the surface of the wire core is wrapped with an insulating layer. The existing electronic detonator leg wire with a simple structure can meet most blasting needs, but for some special construction areas, the electronic detonator leg wire with only positive wire and negative wire is very prone to short circuit, especially in tunnel blasting or deep hole blasting. Local collapse is prone to occur after the hole is opened due to geological instability. This collapse is relatively slow and the leg wire is often sheared after the blasting line is arranged, resulting in damage to the insulating layer and causing a short circuit in the leg wire. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide an electronic detonator leg wire that can prevent core wire short circuit. The leg wire has a simple structure, is convenient and practical, and can cooperate with a diamond-shaped extrusion frame and a U-shaped spring plate to allow the positive wire and the negative wire to be spread apart when the leg wire is under pressure, thereby preventing the positive wire and the negative wire from being cut by sharp parts and preventing them from being separated and causing short circuit even if the insulating layer is damaged.
[0004] An electronic detonator leg wire for preventing core wire short circuit comprises an electric wire and an insulating layer, wherein two electric wires are both wrapped with the insulating layer; the leg wire comprises an arc-shaped connecting strip, a copper sheet strip and a diamond-shaped extrusion frame, wherein two ends of the arc-shaped connecting strip are respectively connected to the insulating layers of the two electric wires, two copper sheet strips are arranged inside the arc-shaped connecting strip, and the diamond-shaped extrusion frame is arranged between the two electric wires and connected to the arc-shaped connecting strip.
[0005] Preferably, a U-shaped spring plate is provided in the diamond-shaped extrusion frame.
[0006] Preferably, both ends of the arc-shaped connecting strip are provided with connecting curling edges, and the connection point between the connecting curling edge and the insulating layer is located on a side away from the diamond-shaped extrusion frame.
[0007] Preferably, the U-shaped spring plate is made of steel.
[0008] Beneficial effects:
[0009] (1) The utility model is an electronic detonator leg wire that prevents core wire short circuit. It has a simple structure, is convenient and practical. Through the cooperation of a diamond-shaped extrusion frame and a U-shaped spring plate, the positive wire and the negative wire are stretched apart when the leg wire is under pressure, thereby preventing the positive wire and the negative wire from being cut by sharp parts. Even if the insulation layer is damaged after separation, they will not affect each other and cause a short circuit.
[0010] (2) The utility model provides an electronic detonator leg wire that prevents core wire short circuit. By setting a copper strip, the positive and negative wires are prevented from being cut off and causing a short circuit due to rock fault settlement. The copper strip is then used to remedy the situation and achieve the purpose of quickly connecting the circuit. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a cross-sectional schematic diagram of the leg wire of the electronic detonator;
[0012] 1-electric wire, 2-insulating layer, 3-arc-shaped connecting strip, 4-connecting curling edge, 5-copper sheet strip, 6-diamond-shaped extrusion frame, 7-U-shaped spring plate. DETAILED DESCRIPTION
[0013] The embodiments of the present utility model are further described below in conjunction with the accompanying drawings.
[0014] Example 1
[0015] like Figure 1 As shown; an electronic detonator foot line for preventing core wire short circuit, including an electric wire 1 and an insulating layer 2, and the two electric wires 1 are wrapped with an insulating layer 2; it is characterized in that: it includes an arc-shaped connecting strip 3, a copper sheet strip 5 and a diamond-shaped extrusion frame 6, the two ends of the arc-shaped connecting strip 3 are respectively connected to the insulating layers 2 of the two electric wires 1, and two copper sheet strips 5 are arranged inside the arc-shaped connecting strip 3, and the diamond-shaped extrusion frame 6 is arranged between the two electric wires 1 and connected to the arc-shaped connecting strip 3; a U-shaped spring plate 7 is arranged in the diamond-shaped extrusion frame 6; both ends of the arc-shaped connecting strip 3 are provided with connecting curling edges 4, and the connection between the connecting curling edges 4 and the insulating layer 2 is located on the side away from the diamond-shaped extrusion frame 6; the material of the U-shaped spring plate 7 is steel.
[0016] When the electronic detonator leg wire receives pressure, the diamond-shaped extrusion frame 6 is deformed, so that the two sides push the wires 1 on both sides, so that the two wires 1 are stretched apart, avoiding the positive wire and the negative wire from contacting each other and causing a short circuit when the insulation layer is damaged; in the case that the wire 1 is cut off or torn off, the circuit is connected through the copper strip 5, which has a higher and more stable ability to resist pressure or pulling than the round wire 1; the material of the U-shaped spring plate 7 is set to steel to improve its elasticity.
[0017] The specific embodiments of the present invention are described in detail above, but they are only examples, and the present invention is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modification and substitution of the present invention is also within the scope of the present invention. Therefore, the equivalent transformation and modification made without departing from the spirit and scope of the present invention are all within the scope of the present invention.
Claims
1. An electronic detonator leg wire for preventing core wire short circuit, comprising a wire (1) and an insulating layer (2), wherein both of the two wires (1) are wrapped with the insulating layer (2); characterized in that: It comprises an arc-shaped connecting strip (3), a copper strip (5) and a diamond-shaped extrusion frame (6); the two ends of the arc-shaped connecting strip (3) are respectively connected to the insulating layers (2) of two electric wires (1); two copper strips (5) are arranged inside the arc-shaped connecting strip (3); and the diamond-shaped extrusion frame (6) is arranged between the two electric wires (1) and connected to the arc-shaped connecting strip (3).
2. The electronic detonator leg wire for preventing core short circuit as claimed in claim 1, characterized in that: A U-shaped spring plate (7) is arranged inside the diamond-shaped extrusion frame (6).
3. The electronic detonator leg wire for preventing core short circuit as claimed in claim 2, characterized in that: Both ends of the arc-shaped connecting strip (3) are provided with connecting curling edges (4), and the connection point between the connecting curling edge (4) and the insulating layer (2) is located on a side away from the diamond-shaped extrusion frame (6).
4. The electronic detonator leg wire for preventing core short circuit as claimed in claim 2, characterized in that: The material of the U-shaped spring plate (7) is steel.