CN-224230860-U - On-site plug-in type electronic detonator without ignition powder leg wire

CN224230860UCN 224230860 UCN224230860 UCN 224230860UCN-224230860-U

Abstract

The utility model relates to the technical field of electronic detonator structures, in particular to an ignition charge free leg wire on-site plug-in type electronic detonator which comprises a leg wire assembly, an electronic detonator assembly and a bar code plate, wherein the leg wire assembly comprises a line clamp, a leg wire body, a socket and a first injection molding body, one end of the leg wire body is connected with the line clamp, the other end of the leg wire body is connected with the socket in a rivet welding mode, the first injection molding body is connected with the outside of the socket in an injection molding mode, the first injection molding body comprises a cylindrical connecting part and a circular protruding edge connected with the root of the connecting part, 2 insertion holes are formed in the end portion of the connecting part, a strip-shaped groove is formed in the circumferential surface of the connecting part, lugs facing the connecting part are respectively connected to the two sides of the circular protruding edge, and the like.

Inventors

HUA FUCHUN
ZHOU GUANGHUI
HUANG XIUPING
LIU HAOHUA
CHEN ZHIBIN
LIN CHAOJIAN

Assignees

福建省民爆化工股份有限公司

Dates

Publication Date: 20260512
Application Date: 20250221

Claims (6)

1. The field plug-in type electronic detonator without the ignition powder leg wire is characterized by comprising a leg wire assembly, an electronic detonator assembly and a bar code plate; The foot line assembly comprises a line clip, a foot line body, a socket and a first injection molding body; One end of the leg wire body is connected to the line clamp, the other end of the leg wire body is connected to the socket in a rivet welding mode, the first injection molding body is connected to the outside of the socket in an injection molding mode, the first injection molding body comprises a cylindrical connecting portion and a circular protruding edge connected to the root of the connecting portion, 2 insertion holes are formed in the end portion of the connecting portion, a strip-shaped groove is formed in the circumferential surface of the connecting portion, and lugs facing the connecting portion are connected to two sides of the circular protruding edge respectively; The electronic detonator assembly comprises a basic detonator and an electronic control module connected to the end part of the basic detonator; The electronic control module comprises a PCB assembly and a second injection molding body; The PCB assembly comprises a PCB board, a contact pin, an ignition head and an electronic component, wherein the contact pin, the ignition head and the electronic component are connected to the PCB board; The second injection molding body is connected to the outer side of the contact pin part of the PCB in an injection molding way, a cylindrical hole in transition fit or interference fit with the connecting part of the first injection molding body is formed in the end part of the second injection molding body, the contact pin is located in the cylindrical hole, a convex strip matched with the strip-shaped groove is formed in the inner wall of the cylindrical hole, and limit grooves are formed in two sides of the second injection molding body respectively and are used for being in clamping fit with the earrings.
2. The field plug-in type electronic detonator without ignition powder leg wire of claim 1 wherein said wire clip is provided with a first clamping groove for mounting a bar code plate.
3. The field plug-in type electronic detonator without ignition powder leg wire of claim 1 wherein the side of said second injection molded body is provided with a second clamping groove for mounting a bar code plate.
4. The ignition charge free leg wire field plug type electronic detonator of claim 1 wherein an O-ring is connected between the connecting portion of the first injection molded body and the annular flange.
5. The field plug-in type electronic detonator without ignition powder leg wires of claim 1 wherein the PCB is in the shape of a long bar, the electronic components are connected to the middle of the PCB, the pins are connected to the PCB near the first end, the ignition head is connected to the PCB near the second end, the width of the second end of the PCB is narrower than the width of the middle, and the width of the portion between the middle and the first end of the PCB is smaller than the width of the middle.
6. The ignition charge free leg wire field plug type electronic detonator of claim 1 wherein the pin is connected to the PCB board by a wire.

Description

On-site plug-in type electronic detonator without ignition powder leg wire Technical Field The utility model relates to the technical field of electronic detonator structures, in particular to an ignition powder free leg wire on-site plug-in type electronic detonator. Background The existing electronic detonator ignition head needs to be dipped with ignition powder first, the processes of ignition powder material preparation and dipping are more, and the efficiency is low. When the existing electronic detonator is produced and delivered, the detonator part and the leg wire are connected together, the leg wire occupies a large packaging space, the number of primary transportation of the initiating explosive device transport vehicle is small, the storage capacity of the warehouse is small, and the transportation and storage cost of the electronic detonator is greatly increased. The electronic detonator leg wire is low in production efficiency by welding to a PCB bonding pad or riveting through a riveting terminal, and a rejection rate of a certain proportion can be generated, so that the control of manufacturing cost is not facilitated. Disclosure of utility model The utility model aims to solve the technical problem that research and development of an ignition charge free leg wire on-site plug-in type electronic detonator is needed to reduce the comprehensive cost of the electronic detonator. In order to solve the technical problems, the utility model adopts the following technical scheme: An ignition powder free foot wire field plug-in type electronic detonator comprises a foot wire assembly, an electronic detonator assembly and a bar code plate; The foot line assembly comprises a line clip, a foot line body, a socket and a first injection molding body; One end of the leg wire body is connected to the line clamp, the other end of the leg wire body is connected to the socket in a rivet welding mode, the first injection molding body is connected to the outside of the socket in an injection molding mode, the first injection molding body comprises a cylindrical connecting portion and a circular protruding edge connected to the root of the connecting portion, 2 insertion holes are formed in the end portion of the connecting portion, a strip-shaped groove is formed in the circumferential surface of the connecting portion, and lugs facing the connecting portion are connected to two sides of the circular protruding edge respectively; The electronic detonator assembly comprises a basic detonator and an electronic control module connected to the end part of the basic detonator; The electronic control module comprises a PCB assembly and a second injection molding body; The PCB assembly comprises a PCB board, a contact pin, an ignition head and an electronic component, wherein the contact pin, the ignition head and the electronic component are connected to the PCB board; The second injection molding body is connected to the outer side of the contact pin part of the PCB in an injection molding way, a cylindrical hole in transition fit or interference fit with the connecting part of the first injection molding body is formed in the end part of the second injection molding body, the contact pin is located in the cylindrical hole, a convex strip matched with the strip-shaped groove is formed in the inner wall of the cylindrical hole, and limit grooves are formed in two sides of the second injection molding body respectively and are used for being in clamping fit with the earrings. In the above-mentioned no ignition powder leg wire on-site plug-in type electronic detonator structure, the line clip is provided with a first clamping groove for installing the bar code plate. In the above-mentioned field plug-in electronic detonator structure without ignition powder leg wire, the side surface of the second injection molding body is provided with a second clamping groove for installing a bar code plate. In the above-mentioned on-site plug-in type electronic detonator structure without ignition powder leg wires, an O-ring is connected between the connecting portion of the first injection molding body and the annular flange. Further, in the above-mentioned on-site plug-in type electronic detonator structure without ignition powder leg wire, the shape of the PCB board is rectangular, the electronic component is connected in the middle part of the PCB board, the contact pin is connected in the PCB board near first end department, the ignition head is connected in the PCB board near second end department, the width of the second end department of PCB board is narrower than the width of middle part thereof, the partial width between the middle part of PCB board and the first end department is less than the width of middle part thereof. In the above-mentioned no ignition powder leg wire on-site plug-in type electronic detonator structure, the contact pin is connected with the PCB board by a lead. The utility model has the beneficial ef