Electronic detonator leg wire tail end connecting device and electronic detonator

Abstract

The invention discloses an electronic detonator leg wire tail end connecting device and an electronic detonator. The electronic detonator leg wire tail end connecting device comprises two sections ofmale and female butt-joint plugs which are mutually detachable and easy to fall off and are not provided with locking connecting components; the male plug is connected with a detonation bus, and the female plug is connected with another section of the detonation bus and a detonator leg wire; the male plug comprises two contact pins, and the contact pins are conductively transmitted to the detonation bus; a waterproof coating or a waterproof sleeve is arranged at the root of each contact pin; and the contact rings are connected with line electrodes arranged in the female plug body, and the lineelectrodes are connected with a set of detonation buses. The outer end surface of a slot is partially coated with a waterproof coating or a waterproof ring; the explosion refusing phenomenon caused by the two problems that the sequential detonation of the adjacent electronic detonators is influenced and needs to be disconnected in time but the metal wire connection cannot be disconnected and theconnection circuit of a non-waterproof junction box is short-circuited when encounters water due to the delay difference of an existing electronic detonator leg wire connection device is fundamentallyovercome; and the set blasting shape and the directional blasting purpose can be achieved.

Description

technical field [0001] The invention relates to the technical field of detonator blasting, in particular to an electronic detonator foot wire terminal connection device and an electronic detonator. Background technique [0002] Electronic detonators, also known as digital electronic detonators, digital detonators or industrial digital electronic detonators, are electric detonators that use electronic control modules to control the detonation process. like figure 1 As shown, in the current electronic detonator blasting system, the tail wires of each electronic detonator are connected in parallel to the detonating bus, and the connection and installation are completed through junction boxes. Usually, several junction boxes are clamped on the detonating bus, and The detonating busbars are all metal wires such as copper core wires. During installation, the skin needs to be peeled off manually to ensure that the cutter touches the copper core wires, and then the detonator and th...

AI Technical Summary

Problems solved by technology

like figure 1 As shown, in the current electronic detonator blasting system, the tail wires of each electronic detonator are connected in parallel to the detonating bus, and the connection and installation are completed through junction boxes. Usually, several junction boxes are clamped on the detonating bus, and The detonating busbars are all metal wires such as copper core wires. During installation, the skin needs to be peeled off manually to ensure that the cutter touches the copper core wires, and then the detonator and the detonating busbars are wound together. If the exposed wires are in contact with the ground or in rainy weather, it will easily cause excessive network resistance or short circuit, which will affect the detonation network, and it is time-consuming and labor-intensive to connect multiple groups of detonator legs to the detonation bus, which greatly reduces work efficiency

[0003] In order to achieve the shape of the set blasting and directional blasting, adjacent blasting holes must be equipped with detonators of different sections and detonated sequentially after being connected to the network one by one with a delay, and the detonators of different sections can only be detonated at the same time. When the detonation signal is received, each detonator must be disconnected from the connected blasting network at the moment when the detonation signal is received, otherwise the hole that explodes first will pull out and displace the unexploded detonator in the adjacent hole due to the delay , resulting in failure to achieve the set blasting shape and blasting orientation goals;

[0004] However, the current connection device for connecting the electronic detonator to the blasting network is that the metal wire is very firmly connected and cannot be disconnected after receiving the detonation signal, which will cause the impact force of the first blast hole to pass through the metal network connection wire or the connecting piece that cannot be easily detached. Drag and displace the unexploded detonators in the adjacent holes due to delay, so that the shape of the blasting and the goal of directional blasting cannot be achieved; in addition, after the blasting network is formed, the detonation signal of the electronic detonator is transmitted to the For each digital electronic detonator, the circuit of the detonation network must be unblocked, but the current connection device of the blasting network of the electronic detonator is not waterproof. Many digital electronic detonators cannot receive the detonation signal and become blind shots, which leads to the inability to achieve the set blasting shape and directional blasting goals

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