Dual-purpose wiring card for short circuit and open circuit of electronic detonator leg wire
By designing a dual-purpose short-circuit and open-circuit junction box for electronic detonator leads, the problem of short-circuit and non-short-circuit control during transportation, turnover, and use was solved, achieving contact reliability, simplifying management, and reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAN QINGHUA CIVIL BLASTING EQUIP CO LTD
- Filing Date
- 2025-02-26
- Publication Date
- 2026-05-19
AI Technical Summary
Existing electronic detonators cannot simultaneously meet the requirements for short-circuit and non-short-circuit control during transportation, turnover, and use, resulting in complex management and high costs.
Design a dual-purpose short-circuit and open-circuit connector for electronic detonator leads, including an upper cover and a lower cover. The lower cover contains metal terminals, and the lower side of the upper cover contains a short-circuit plate and a pressure coil. The connector is connected by a hinge structure and a rotating shaft to ensure reliable contact and detachability.
It achieves reliable short-circuit or non-short-circuit control in different scenarios, simplifies management processes, and reduces product variety and production costs.
Smart Images
Figure CN224262371U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of civil explosives technology, specifically relating to a dual-purpose short-circuit and open-circuit connector for electronic detonator leads. Background Technology
[0002] According to blasting safety regulations, users require that the leads of the manufactured electronic detonators for seismic exploration be short-circuited during transportation, handling, and use to prevent accidental detonation due to static electricity, stray currents, etc. Therefore, a short-circuit type electronic detonator connector is needed. For ordinary electronic detonators, this connector does not require short-circuiting during transportation, storage, and handling. In actual use, it connects to the blasting connection line to achieve electronic detonator networking and blasting control.
[0003] Therefore, in order to facilitate production management, it is necessary to design a universal electronic detonator wiring card that can meet both of these requirements at the same time, reduce product types and production changeovers, reduce manufacturing costs, and facilitate production management. Utility Model Content
[0004] The purpose of this utility model is to provide a dual-purpose short-circuit and open-circuit junction box for electronic detonator leads, which solves the problem of simultaneously meeting the short-circuit and non-short-circuit control requirements of electronic detonators during transportation, turnover, and use.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a dual-purpose short-circuit and open-circuit terminal block for electronic detonator leads, including an upper cover and a lower cover; two metal terminals are provided inside the lower cover; a short-circuit plate and a pressure coil are provided on the lower side of the upper cover, and two contacts are provided on the short-circuit plate.
[0006] The technical solution of this utility model also has the following characteristics:
[0007] The top and bottom covers are hinged together.
[0008] The upper cover has a pivot on its side, and the lower cover has a pair of pivot seats on its side, with the two ends of the pivot inserted into the two pivot seats respectively.
[0009] The contacts have a raised structure.
[0010] The middle of the short-circuit plate is bent.
[0011] The pressure coil has a rectangular structure.
[0012] Two pressure blocks are provided on the lower side of the top cover.
[0013] The metal terminals are arranged in a staggered manner.
[0014] The beneficial effects of this utility model are: (1) The short-circuit and open-circuit dual-purpose connector for electronic detonator leads of this utility model has a raised contact point on the short-circuit plate of the upper cover, which can reliably contact the metal terminal and ensure the reliability of the short circuit; (2) The short-circuit and open-circuit dual-purpose connector for electronic detonator leads of this utility model has a reserved contact surface on the side of the metal terminal on the lower cover. The surface of the contact surface is free of plastic material, which ensures the reliability of the contact; (3) The short-circuit and open-circuit dual-purpose connector for electronic detonator leads of this utility model has a pressure coil inside the upper cover. When the blasting connection wire is installed, the pressure coil can reliably press the blasting connection wire into the metal terminal of the lower cover. Attached Figure Description
[0015] Figure 1 This is a structural schematic diagram of a dual-purpose short-circuit and open-circuit junction box for electronic detonator leads according to this utility model;
[0016] Figure 2 This utility model provides a state diagram of a dual-purpose short-circuit and open-circuit connector for electronic detonators used in seismic exploration.
[0017] Figure 3 This utility model presents a state diagram of a dual-purpose short-circuit and open-circuit connector for electronic detonators, used as a standard electronic detonator.
[0018] In the diagram, 1. lower cover, 2. metal terminal, 3. rotating shaft seat, 4. contact, 5. shorting piece, 6. pressure coil, 7. upper cover, 8. pressure block, 9. rotating shaft, 10. explosive connection wire. Detailed Implementation
[0019] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0020] Example 1
[0021] like Figure 1 As shown, the present invention provides a dual-purpose short-circuit and open-circuit connector for electronic detonator leads, comprising an upper cover 7 and a lower cover 1.
[0022] The lower cover 1 has two metal terminals 2 inside; the lower side of the upper cover 7 has a shorting piece 5 and a pressure coil 6, and the shorting piece 5 has two contacts 4.
[0023] The top cover of a standard connector only has a plastic wire pressing protrusion, which makes it easy to reliably press the explosive connection wire into the terminal. In the design, this function needs to be retained. At the same time, a shorting piece 5 is set on the top cover of the connector so that when the top cover 7 and the bottom cover 1 are fastened together, the two metal terminals 2 on the bottom cover 1 are short-circuited.
[0024] When the connector is pressed into the explosive connection wire, and the upper cover 7 and lower cover 1 are fastened together, the shorting piece 5 of the upper cover 7 will not contact the metal terminal 2 due to the obstruction of the explosive connection wire 10, ensuring the normal connection of the explosive connection wire 10. The explosive connection wire 10 and the electronic detonator lead wire are connected to the metal terminal 2.
[0025] Compared to ordinary electronic detonator connectors, this utility model's electronic detonator lead wire short-circuit / open-circuit dual-purpose connector has two built-in metal terminals 2 in its lower cover 1. One side of the contact surface of the metal terminals 2 is not covered with plastic, allowing for short-circuit connection. The upper cover 7 includes a short-circuit piece 5, which has a contact point 4 for contacting the contact surface of the terminals, thereby connecting the two metal terminals 2 and realizing the function of short-circuiting the electronic detonator lead wire.
[0026] like Figure 2 As shown, after the seismic exploration electronic detonator is manufactured, it is equipped with a dual-purpose short-circuit and open-circuit connector for the electronic detonator lead wire. The upper cover 7 and the lower cover 1 are fastened together. The short-circuit piece 5 inside the lower cover 1 contacts the two metal terminals 2 through the contact point 4, thereby achieving a short circuit between the two metal terminals 2 and preventing static electricity from igniting the electronic detonator through the lead wire.
[0027] When used in the field, the upper cover 7 and the lower cover 1 of the seismic exploration electronic detonator do not need to be fastened. At this time, the short circuit protection between the two metal terminals 2 will be lost. Then, the detonator is connected to the lead wire, and the electronic detonator is detonated to complete the blast.
[0028] like Figure 3 As shown, in normal applications, this type of lead clamp and electronic detonator are assembled normally. When used in the field, the blasting connection wire 10 is inserted, and the upper cover 7 and lower cover 1 are fastened. The pressure coil 6 in the upper cover 7 presses the blasting connection wire 10 into the two metal terminals 2 respectively. At this time, due to the cutting action of the metal terminals 2, the insulation of the blasting connection wire 10 is cut, and the two metal terminals 2 are connected to the two poles of the blasting connection wire 10 respectively, so as to achieve controllable blasting.
[0029] During the pressing of the explosive connecting wire 10, the shorting piece 5 inside the upper cover 7 is also pressed into the metal terminal 2. At this time, the explosive connecting wire 8 is inserted into the metal terminal 2, and the contact 4 on the shorting piece 5 can only slide on the explosive connecting wire 10. Because the explosive connecting wire 10 has an insulating outer layer, the contact 4 on the shorting piece 5 cannot contact the metal terminal 2 at this time, thus preventing a short circuit. This type of connector is used like a regular connector.
[0030] Example 2
[0031] like Figure 1As shown in Embodiment 1, Embodiment 2 of this utility model provides a dual-purpose short-circuit and open-circuit connector for electronic detonator leads, comprising an upper cover 7 and a lower cover 1. The lower cover 1 contains two metal terminals 2; the lower side of the upper cover 7 contains a short-circuit plate 5 and a pressure coil 6, and the short-circuit plate 5 has two contacts 4.
[0032] like Figure 1 As shown, unlike Embodiment 1, in this Embodiment 2, the upper cover 7 and the lower cover 1 of the present invention are hinged together in an electronic detonator lead wire short-circuit and open-circuit dual-purpose connector.
[0033] The upper cover 7 and the lower cover 1 are hinged together to ensure that they are not separate parts. The operation is based on one of them, which ensures that the two can be quickly fastened together.
[0034] Example 3
[0035] like Figure 1 As shown in Embodiment 2, Embodiment 3 of this utility model provides a dual-purpose short-circuit and open-circuit connector for electronic detonator leads, comprising an upper cover 7 and a lower cover 1. The lower cover 1 contains two metal terminals 2; the lower side of the upper cover 7 contains a short-circuit piece 5 and a pressure coil 6, with two contacts 4 on the short-circuit piece 5. The upper cover 7 and the lower cover 1 are hinged together.
[0036] like Figure 2 As shown, unlike Embodiment 2, in Embodiment 3, the electronic detonator lead wire short-circuit and open-circuit dual-purpose connector of this utility model has a rotating shaft 9 on the side of the upper cover 7 and a pair of rotating shaft seats 3 on the side of the lower cover 1. The two ends of the rotating shaft 9 are respectively inserted into the two rotating shaft seats 3.
[0037] As a preferred method for hinged connection between the upper cover 7 and the lower cover 1, this can be achieved using a pivot 9 and two pivot seats 3. Specifically, a pivot 9 is fixed to the side of the upper cover 7, and two pivot seats 3 are fixed to the side of the lower cover 1. Each pivot seat 3 has a shaft hole, and both ends of the pivot 9 are respectively inserted into the shaft holes of the two pivot seats 3. During operation, the upper cover 7 rotates around the pivot 9, achieving precise engagement between the upper cover 7 and the lower cover 1.
[0038] The pivot 9 and pivot seat 3 are used after assembly, allowing the upper cover 7 to rotate and engage around the lower cover 1. Ordinary plastic ribbed hinges become brittle at low temperatures, leading to hinge breakage. In contrast, the pivot 9 structure of this invention does not affect the performance of the plastic pivot regardless of temperature.
[0039] Example 4
[0040] like Figure 1As shown in Embodiment 3, Embodiment 4 of this utility model provides a dual-purpose short-circuit and open-circuit connector for electronic detonator leads, comprising an upper cover 7 and a lower cover 1. The lower cover 1 contains two metal terminals 2; the lower side of the upper cover 7 has a short-circuit piece 5 and a pressure coil 6, with two contacts 4 on the short-circuit piece 5. The upper cover 7 and the lower cover 1 are hinged together. A rotating shaft 9 is located on the side of the upper cover 7, and a pair of rotating shaft seats 3 are located on the side of the lower cover 1, with both ends of the rotating shaft 9 inserted into the two rotating shaft seats 3 respectively.
[0041] like Figure 1 As shown, unlike Embodiment 3, in Embodiment 4, the contact 4 of this utility model is a raised structure in the dual-purpose short-circuit and open-circuit terminal block for electronic detonator leads.
[0042] Contact 4 has a raised structure that protrudes outward, so that it can be connected to the two metal terminals 2 through the two contacts, while other parts of the shorting piece 5 will not come into contact with the two metal terminals 2.
[0043] Example 5
[0044] like Figure 1 As shown in Embodiment 4, Embodiment 5 of this utility model provides a dual-purpose short-circuit and open-circuit connector for electronic detonator leads, comprising an upper cover 7 and a lower cover 1. The lower cover 1 contains two metal terminals 2; the lower side of the upper cover 7 has a short-circuit piece 5 and a pressure coil 6, with two contacts 4 on the short-circuit piece 5. The upper cover 7 and the lower cover 1 are hinged together. A rotating shaft 9 is located on the side of the upper cover 7, and a pair of rotating shaft seats 3 are located on the side of the lower cover 1, with both ends of the rotating shaft 9 inserted into the two rotating shaft seats 3 respectively. The contacts 4 are protruding structures.
[0045] like Figure 1 As shown, unlike Embodiment 4, in Embodiment 5, the short-circuit piece 5 is bent in the middle of a dual-purpose short-circuit and open-circuit junction box for electronic detonator leads of this utility model.
[0046] The shorting piece 5 is bent in the middle so that the two sides of the shorting piece 5 can be arranged front and back, so that the two contacts 4 on the shorting piece 5 can contact the two metal terminals 2 respectively, and avoid other parts of the shorting piece 4 from contacting the metal terminals 2.
[0047] Example 6
[0048] like Figure 1As shown in Embodiment 5, Embodiment 6 of this utility model provides a dual-purpose short-circuit and open-circuit connector for electronic detonator leads, comprising an upper cover 7 and a lower cover 1. The lower cover 1 contains two metal terminals 2; the lower side of the upper cover 7 has a short-circuit piece 5 and a pressure coil 6, with two contacts 4 on the short-circuit piece 5. The upper cover 7 and the lower cover 1 are hinged together. A rotating shaft 9 is located on the side of the upper cover 7, and a pair of rotating shaft seats 3 are located on the side of the lower cover 1, with both ends of the rotating shaft 9 inserted into the two rotating shaft seats 3 respectively. The contacts 4 are protruding structures. The middle of the short-circuit piece 5 is bent.
[0049] like Figure 1 As shown, unlike Embodiment 5, in Embodiment 6, the pressure coil 6 of this utility model is a rectangular structure in a dual-purpose short-circuit and open-circuit terminal block for electronic detonator leads.
[0050] The pressure coil 6 has a rectangular structure, which facilitates pressing down the explosive connection wire 10 and ensures that it can be pressed into the metal terminal 2.
[0051] Example 7
[0052] like Figure 1 As shown in Embodiment 6, Embodiment 7 of this utility model provides a dual-purpose short-circuit and open-circuit connector for electronic detonator leads, comprising an upper cover 7 and a lower cover 1. The lower cover 1 contains two metal terminals 2; the lower side of the upper cover 7 has a short-circuit piece 5 and a pressure coil 6, with two contacts 4 on the short-circuit piece 5. The upper cover 7 and the lower cover 1 are hinged together. A rotating shaft 9 is located on the side of the upper cover 7, and a pair of rotating shaft seats 3 are located on the side of the lower cover 1, with both ends of the rotating shaft 9 inserted into the two rotating shaft seats 3 respectively. The contacts 4 are protruding structures. The short-circuit piece 5 is bent in the middle. The pressure coil 6 has a rectangular structure.
[0053] like Figure 1 As shown, unlike Embodiment 6, in Embodiment 7, a dual-purpose short-circuit and open-circuit junction box for electronic detonator leads of this utility model has two pressure blocks 8 on the lower side of the upper cover 7.
[0054] The two pressure blocks 8 correspond to the positions of the two metal terminals 2. When the upper cover 7 and the lower cover 1 are fastened together, the two pressure blocks 8 and the two metal terminals 2 are pressed together, so that the explosive connection line 10 between them is pressed more smoothly into the metal terminals 2.
[0055] Example 8
[0056] like Figure 1As shown in Embodiment 7, Embodiment 8 of this utility model provides a dual-purpose short-circuit and open-circuit connector for electronic detonator leads, comprising an upper cover 7 and a lower cover 1. The lower cover 1 contains two metal terminals 2; the lower side of the upper cover 7 has a short-circuit piece 5 and a pressure coil 6, with two contacts 4 on the short-circuit piece 5. The upper cover 7 and the lower cover 1 are hinged together. A rotating shaft 9 is located on the side of the upper cover 7, and a pair of rotating shaft seats 3 are located on the side of the lower cover 1, with both ends of the rotating shaft 9 inserted into the two rotating shaft seats 3 respectively. The contacts 4 are protruding structures. The short-circuit piece 5 is bent in the middle. The pressure coil 6 has a rectangular structure. Two pressure blocks 8 are located on the lower side of the upper cover 7.
[0057] like Figure 1 As shown, unlike Embodiment 7, in Embodiment 8, the metal terminals 2 of this utility model are arranged in a staggered manner, which is different from Embodiment 7.
[0058] The metal terminals 2 are arranged in a staggered manner, corresponding to the structure of the shorting piece 5, so as to complete the corresponding contact.
[0059] Therefore, compared with the prior art, the dual-purpose short-circuit and open-circuit junction box for electronic detonator leads of this utility model has the following advantages:
[0060] (1) The electronic detonator lead wire short-circuit and open-circuit dual-purpose connector of this utility model has a short-circuit plate on its top cover with a raised contact point that can reliably contact the metal terminal to ensure the reliability of the short circuit.
[0061] (2) The electronic detonator lead wire short-circuit and open-circuit dual-purpose connector of this utility model has a reserved contact surface on the side of the metal terminal on the lower cover. The surface of the contact surface is free of plastic material, which ensures the reliability of the contact.
[0062] (3) The electronic detonator lead wire short-circuit and open-circuit dual-purpose connector of this utility model has a pressure coil inside its upper cover. When the blasting connection wire is installed, the pressure coil can reliably press the blasting connection wire into the metal terminal of the lower cover.
Claims
1. A dual-purpose short-circuit and open-circuit connector for electronic detonator leads, characterized in that: It includes an upper cover (7) and a lower cover (1); the lower cover (1) is provided with two metal terminals (2); the lower side of the upper cover (7) is provided with a shorting piece (5) and a pressure coil (6), and the shorting piece (5) is provided with two contacts (4).
2. The dual-purpose short-circuit and open-circuit connector for electronic detonator leads according to claim 1, characterized in that, The upper cover (7) and the lower cover (1) are hinged together.
3. The dual-purpose short-circuit and open-circuit connector for electronic detonator leads according to claim 2, characterized in that, The upper cover (7) is provided with a rotating shaft (9) on its side, and the lower cover (1) is provided with a pair of rotating shaft seats (3) on its side. The two ends of the rotating shaft (9) are respectively inserted into the two rotating shaft seats (3).
4. The dual-purpose short-circuit and open-circuit connector for electronic detonator leads according to claim 3, characterized in that, The contact point (4) is a raised structure.
5. The dual-purpose short-circuit and open-circuit connector for electronic detonator leads according to claim 1, characterized in that, The middle part of the short-circuit plate (5) is bent.
6. The dual-purpose short-circuit and open-circuit connector for electronic detonator leads according to claim 1, characterized in that, The pressure coil (6) has a rectangular structure.
7. The dual-purpose short-circuit and open-circuit connector for electronic detonator leads according to claim 1, characterized in that, Two pressure blocks (8) are provided on the lower side of the upper cover (7).
8. The dual-purpose short-circuit and open-circuit connector for electronic detonator leads according to claim 1, characterized in that, The metal terminals (2) are arranged in a staggered manner.