CN113465458B

CN113465458B - Portable electric detonator

Info

Publication number: CN113465458B
Application number: CN202110669694.8A
Authority: CN
Inventors: 柳勤; 张连壮; 任庆国
Original assignee: Beijing Kaimi Maike Technology Co ltd
Current assignee: Beijing Kaimi Maike Technology Co ltd
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2023-05-26
Anticipated expiration: 2041-06-17
Also published as: CN113465458A

Abstract

The utility model discloses a portable electric detonator, which comprises an insulating connecting piece, an electric ignition element and a basic detonator, wherein the insulating connecting piece is provided with a first insulating layer; one end of the insulating connecting piece is a structure of coating insulating elastic materials outside the metal terminal and is used as a bayonet plug of the electric detonator, and the other end of the insulating connecting piece is used as a junction box for epitaxially connecting wires; the insulating connecting piece is fixedly and mechanically connected with the electric ignition element through the exposed metal terminal and is electrically connected with the electric ignition element; the base detonator is sleeved outside the electric detonator igniting element, and the end part of the base detonator is clamped with the electric detonator bayonet plug of the insulating connecting piece to form a sealing structure. The utility model can realize the high efficiency and the high speed in the production process, has simple assembly and safe and convenient use.

Description

Portable electric detonator

Technical Field

The utility model relates to the technical field of civil blasting equipment, in particular to a portable electric detonator.

Background

Industrial detonators are widely used civil detonating devices, and all detonators which use electricity as an initial stimulation energy source to ignite and detonate belong to detonators which relate to electricity, namely the electric detonators for short. Among the structures of electric detonators, the simplest structure is a common electric detonator, and the most main component is an electric ignition element. In the electronic detonators developed in recent years, the electric ignition element is transformed into an electronic ignition element controlled by electronic circuits, these being electric ignitors. The electric detonator can reliably work in various use occasions only by a special sealing structure formed by tightly combining the electric detonator and the shell of the basic detonator, and the common method is to make a bayonet plug by injection molding a block on the electric element, so that the sealing, fireproof, waterproof and dampproof of the electric detonator structure are realized by the plasticity and the sealing property of a structural part, and the long-term quality reliability is ensured.

At present, a common practice in the civil blasting equipment industry is to form a plastic block at the end of a conducting wire in an injection molding mode to serve as a bayonet plug, the size of the plastic block is matched with that of a detonator shell, then the electric ignition element is welded with the wire end of the plastic block, and then the plastic block and the base Lei Guanka are combined together with a long conducting wire. By adopting the processing mode, the plastic plug needs to be injected on site, the process is long, the processing speed is low, the pressure maintaining is needed in the injection molding process, the whole processing process is slow in speed, the period is long, the production efficiency is low, meanwhile, the operation speed is slow in the processes of assembling, checking, packaging and the like of the electric detonator, the operation process is complex, the automatic mass production is not facilitated, and the large-capacity, high-yield and rapid assembly production cannot be realized.

The existing connecting structure integrating the long leg wire and the bayonet plug has the following defects:

1. the bayonet plug is integrally processed at the end of the long leg wire through injection molding, the injection molding process of the bayonet plug is complex, and the production efficiency is low.

2. After the bayonet plug is molded at one end of the long leg wire, the structures and the states of the two ends of the long leg wire are different, the long leg wire and the long leg wire need to be separately treated in the packaging and storing processes, the two ends cannot be mixed and placed, and the packaging and storing difficulty and the packaging and storing cost are increased.

3. After the wire core wire head reserved when the long leg wire is injection molded through the bayonet plug is directly connected with the ignition element or the electronic control module into a whole, the whole long leg wire needs to be transferred to a subsequent processing procedure in a circulation mode by following the ignition element or the electronic control module, and extra logistics transfer quantity and the processing difficulty of the long leg wire in the next procedure are increased.

4. The long leg wire has the differentiation of a plurality of different meters, after the wire core wire head reserved when the long leg wire is injection molded through the bayonet plug is directly connected with the ignition element or the electronic control module into a whole, the original indiscriminate ignition element is additionally produced to have a plurality of specifications differentiated due to the different length of the leg wire, the specification is required to be frequently changed during production, the continuous production is not facilitated, and the additional cost of classification management, storage and transportation scheduling is increased.

5. During bayonet plug and long leg wire integration processing of moulding plastics, the high temperature material of moulding plastics of bayonet plug can lead to long leg wire sinle silk insulating skin to melt, forms short circuit disqualification product easily, and traditional bayonet plug is opaque material, and the inside processingquality of bayonet plug can't be convenient inspect and judge, brings very big inconvenience for subsequent processing.

6. In the traditional integrated structure of the long leg wire and the bayonet plug, the length of the bayonet plug is relatively short, the exposed length of the bayonet plug of a finished product of the electric detonator is usually about 10mm, the electric detonator is inconvenient to hold and pinch during field use and operation, operators have to hold and pinch the shell part of the basic detonator, the operation safety risk is increased, and the electric detonator is contrary to the intrinsic safety requirement.

Particularly in recent years, with the rising of electronic detonator varieties, the industrialized mass production and use are more complicated, the processing process is more complicated, unmanned, continuous and automatic assembly production lines are needed, the assembly production process is more complicated and difficult to control, and the use requirements of large-capacity, high-yield and rapid production cannot be met by using an on-site injection molding method.

Therefore, the utility model patent ZL 201310259780.7 'an electronic circuit module for an integrally glued electronic detonator and a process method thereof' discloses an electronic circuit module for an integrally glued electronic detonator and a packaging method thereof, wherein electronic wire ignition parts welded with medicine heads are put into a solid sealing mould filled with thermosetting silica gel or epoxy resin glue together, the electronic ignition parts and the solid sealing glue are solidified together, and the electronic ignition parts sealed with glue are ejected out of the mould by a mould ejecting device for subsequent foot wire welding and electronic detonator assembling procedures. The utility model patent 202020193388.2 discloses a reinforced electronic ignition member and an electronic detonator thereof, and discloses a structure of the whole reinforced electronic ignition member and the detonator thereof, wherein only a reinforced pipe is used for mechanically reinforcing and strengthening an electronic ignition element, but the technical problems of quick and convenient connection (bayonet plug) are not solved, and the assembly mode of the conventional electric detonator at present is still adopted, so that the use requirements of large productivity, high yield and quick assembly production cannot be met.

Disclosure of Invention

In view of the above, the utility model provides a portable electric detonator which can realize the high efficiency and the rapidness of the production process, is simple to assemble and is safe and convenient to use.

The technical scheme adopted by the utility model is as follows:

a portable electric detonator comprises an insulating connecting piece, an electric ignition element and a basic detonator;

one end of the insulating connecting piece is a structure of coating insulating elastic materials outside the metal terminal and is used as a bayonet plug of the electric detonator, and the other end of the insulating connecting piece is used as a junction box for epitaxially connecting wires; the insulating connecting piece is fixedly and mechanically connected with the electric ignition element through the exposed metal terminal and is electrically connected with the electric ignition element; the base detonator is sleeved outside the electric detonator igniting element, and the end part of the base detonator is clamped with the electric detonator bayonet plug of the insulating connecting piece to form a sealing structure.

Further, the bayonet plug of the electric detonator is of a cylindrical stepped shaft structure, and the small-diameter section is arranged on the outer side.

Further, the electric detonator further comprises a reinforcing tube, the reinforcing tube is sleeved outside the electric ignition element, and the end part of the opening end of the reinforcing tube is clamped with the small diameter section of the electric detonator bayonet plug of the insulating connecting piece.

Further, the base detonator is sleeved outside the reinforcing tube, and the end part of the base detonator is clamped with the large-diameter section of the bayonet plug of the electric detonator of the insulating connecting piece to form a sealing structure.

Further, the number of the metal terminals is 2 to 6.

Further, the number of the metal terminals is 2.

Further, the junction box comprises a clamping groove with a clamping wire terminal and an end cover, wherein the clamping wire terminal is used for being electrically and mechanically connected with an external pin wire; the number of the wire clamping terminals corresponds to that of the metal terminals, and the wire clamping terminals are electrically connected with the metal terminals; waterproof glue is injected into the clamping groove after the wire clamping, and a sealing waterproof structure is formed after the sealing is closed by the end cover.

Further, the wire clamping terminal and the metal terminal are of an integrated structure.

Further, the sealing mode between the end cover and the clamping groove adopts buckling, welding, interference fit or threaded connection.

Further, the electric detonator is a detonator which is ignited and/or detonated by electric drive.

The beneficial effects are that:

1. the utility model combines the bayonet plug of the traditional electric detonator and the external junction box into an integrated structure, can realize bidirectional epitaxial connection, can be conveniently, quickly and simply assembled and connected with the electric ignition element and is mechanically connected with the basic detonator to form a sealing structure, can conveniently, quickly and simply assemble the whole structure of the electric detonator with the required model and specification, simplifies the assembly production process of the electric detonator, improves the production efficiency, can be used for producing and using various electric detonators, can realize the aims of centralization, intensive production and remote distribution of the electric ignition element and the electric basic detonator, improves the safety of the electric detonator, and solves the safety technical problems in the production, transportation and storage processes of the basic detonator.

2. The insulating connecting piece provided by the utility model is formed into an independent component through off-line pre-injection molding, can be used for being quickly on line, can be used for various electric detonators, such as common electric detonators, electronic detonators, electromagnetic detonators, magneto-electric detonators, wireless electric detonators and the like, can realize convenient, simple and quick assembly of the electric detonators, and can meet the requirements of unmanned, continuous and automatic assembly production and use. The method adopts a mode of standby of the pre-manufactured products, eliminates the process of on-line time-consuming preparation, improves the production speed and the production efficiency, and is beneficial to high-yield and high-speed assembly production of the electric detonator. And secondly, the integrated structure of the bayonet plug of the electric detonator and the external junction box is integrated, so that the structure and the assembly process of the electric detonator are simplified, and a new technical approach is opened for unmanned, continuous, automatic, rapid and high-yield assembly production of the electric detonator.

3. The electric detonator also comprises the reinforcing tube, so that the integral mechanical strength of the electric detonator is improved, the electric ignition powder head and the electric control module are protected from being stimulated by external fire, and the safety of production and transportation is improved.

4. The junction box comprises the clamping groove with the clamping wire terminal and the end cover, wherein the clamping wire terminal is used for being electrically and mechanically connected with the external foot wire, so that foot wires with different lengths can be conveniently, quickly and simply connected in an extending mode, the complete structure of the electric detonator with the required model and specification can be assembled, and the production of detonators with various specifications can be simultaneously carried out.

5. The utility model uses 2 metal terminals and 2 wire clamping terminals, which is the simplest and most convenient.

6. According to the utility model, the insulating connecting piece is used for replacing a relatively short bayonet plug in the traditional integrated structure of the long leg wire and the bayonet plug, so that a safe product holding operation position is provided for field use and operation, the phenomenon that the base detonator shell part originally has to be held is avoided, the operation safety risk is eliminated, and the intrinsic safety requirement is realized.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a schematic structural view of an electric ignition member.

Fig. 3 is a schematic structural view of the enhanced electric ignition member.

Fig. 4 is a schematic structural view of an electric detonator package.

Fig. 5 is a schematic view of the explosive structure of fig. 4.

Wherein, 1-insulating electrical connector, 1-1-metal binding post, 1-2-card line terminal, 2-relate to electric ignition component, 3-reinforcing pipe, 4-basic detonator, 5-foot line.

Detailed Description

The utility model will now be described in detail by way of example with reference to the accompanying drawings.

Example 1:

the embodiment provides a portable electric detonator, as shown in fig. 1, comprising an insulating electric connector 1, an electric igniting element 2 and a basic detonator 4.

As shown in fig. 2, the insulating connector 1 is a structure with one end being a metal terminal and an insulating elastic material coated on the outer side as a bayonet plug of the electric detonator, so as to realize electric connection with related electronic devices and mechanical connection with extension parts, the other end of the insulating connector 1 is used as a junction box for extending connecting wires, the insulating connector 1 is an integrated structure formed by the bayonet plug of the electric detonator and the junction box, and the bayonet plug of the electric detonator and the shell of the junction box are both made of insulating materials, and plastic can be preferably adopted. The exposed metal terminal part of the bayonet plug of the electric detonator is used as a metal wiring terminal 1-1, and the insulating connecting piece 1 is fixedly connected with the electric ignition element 2 through the metal wiring terminal 1-1 and is electrically connected, so that an independent and full-function portable ignition part related to electric work, namely an electric ignition part, is formed; wherein the electric ignition element 2 and the metal wiring terminal 1-1 can be fixed together through plugging, riveting or welding. The electric ignition element 2 may be an electric ignition head, or an electronic control module, or an electric ignition element.

The bayonet plug of the electric detonator of the insulating connecting piece 1 is of a cylindrical stepped shaft structure, and the small-diameter section is arranged on the outer side. The outer diameter of the small diameter section is consistent with the outer diameter of the electric ignition element 2, and the outer diameter of the large diameter section is consistent with the inner diameter of the shell of the basic detonator 4.

The base detonator 4 is sleeved outside the electric detonator igniting element 2, and the end part of the base detonator 4 is clamped or adhered and fixed with the large-diameter section of the electric detonator bayonet plug of the insulating connecting piece 1 to form a sealing structure.

The junction box of the insulating connecting piece 1 comprises a clamping groove with a clamping wire terminal 1-2 and an end cover, wherein the clamping wire terminal 1-2 is used for being electrically and mechanically connected with an external pin wire; the wire clamping terminal 1-2 is electrically connected with the metal wiring terminal 1-1. The number of the metal terminals 1-1 is 2 to 6, preferably 2. The number of the wire clamping terminals 1-2 corresponds to the number of the metal wiring terminals 1-1. Preferably, the wire clamping terminal 1-2 and the metal wiring terminal 1-1 are of an integrated structure, namely, two ends of one metal terminal are respectively provided with the metal wiring terminal 1-1 and the wire clamping terminal 1-2.

Waterproof glue is injected into the clamping groove after the wire clamping, and a sealing waterproof structure is formed after the sealing is closed by the end cover. The clamping groove shell and the end cover are all made of plastics. The shape structure of the clamping groove shell can be rectangular, prismatic, cylindrical, elliptic cylindrical or other special-shaped structures. The sealing mode between the end cover and the clamping groove adopts the buckling or melting welding or interference fit or threaded connection.

According to the on-site use requirement, the extension leg wire which is simply and reliably connected with the required length in a wire clamping mode can be conveniently operated, and a complete electric detonator product is formed.

Example 2:

on the basis of embodiment 1, the electric detonator further comprises a reinforcing tube 3.

The outer diameter of the small diameter section of the bayonet plug of the electric detonator of the insulating connecting piece 1 is consistent with the inner diameter of the reinforcing tube 3.

As shown in fig. 3, the reinforcing tube 3 is sleeved outside the electric detonator fire element 2, and the opening end part of the reinforcing tube 3 is clamped or adhered and fixed with the small diameter section of the electric detonator bayonet plug of the insulating connecting piece 1. The base detonator 4 is sleeved outside the reinforcing tube 3, and the end part of the base detonator 4 is clamped or adhered and fixed with the large-diameter section of the bayonet plug of the electric detonator of the insulating connecting piece 1 to form a sealing structure.

The insulated connector 1 realizes extension through the metal wiring terminals 1-1 and the wire clamping terminals 1-2 at two ends, is electrically connected with the electric ignition element 2 such as the electric ignition head, the electric ignition element and the like, and/or is in an open or sealed structure formed by mechanical connection, and is used for the structure of the electric detonator such as the electric detonator, the electronic detonator, the digital electronic detonator, the magneto-electric detonator and the radio electric detonator which are driven to ignite and/or detonate by electric work and the application thereof, thereby realizing convenient, simple and quick assembly of the electric detonator and meeting the requirements of unmanned, continuous and automatic assembly production and use.

Example 3:

based on the embodiment 1 or the embodiment 2, the electric detonator is clamped with the extension leg wire 5 through the wire clamping terminal 1-2 on the insulating connecting piece 1, and the extension leg wire 5 and the junction box thereof are added, so that the integrated electric detonator is formed, as shown in fig. 4 and 5.

In summary, the above embodiments are only preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The portable electric detonator is characterized by comprising an insulating connecting piece, an electric ignition element and a basic detonator;

one end of the insulating connecting piece is a structure of coating insulating elastic materials outside the metal terminal and is used as a bayonet plug of the electric detonator, the other end of the insulating connecting piece is used as a junction box for epitaxially connecting wires, and the bayonet plug of the electric detonator and the junction box are combined into an integrated structure, so that bidirectional epitaxial connection can be realized; the insulating connecting piece is mechanically and fixedly connected with the electric ignition element through the exposed metal terminal and realizes electric connection; the base detonator is sleeved outside the electric detonator igniting element, and the end part of the base detonator is clamped with the electric detonator bayonet plug of the insulating connecting piece to form a sealing structure;

the junction box comprises a clamping groove with a clamping wire terminal and an end cover, wherein the clamping wire terminal is used for being electrically and mechanically connected with an external pin wire; the number of the wire clamping terminals corresponds to the number of the metal terminals, the wire clamping terminals are electrically connected with the metal terminals, and the wire clamping terminals and the metal terminals are of an integrated structure; waterproof glue is injected into the clamping groove after the wire clamping, and a sealing waterproof structure is formed after the sealing is closed by the end cover.

2. The portable electric detonator of claim 1 wherein the electric detonator bayonet plug is of a cylindrical stepped shaft structure with a small diameter section on the outside.

3. The portable electric detonator of claim 2 further comprising a reinforcing tube, wherein the reinforcing tube is sleeved outside the electric ignition element and the open end of the reinforcing tube engages with the small diameter section of the electric detonator bayonet plug of the insulating connector.

4. A portable electric detonator as claimed in claim 3 wherein the base detonator is sleeved outside the reinforcing tube and the ends thereof are engaged with the large diameter section of the electric detonator bayonet plug of the insulating connector to form a sealed structure.

5. A portable electric detonator as claimed in any one of claims 1 to 4 wherein the number of metal terminals is in the range 2 to 6.

6. The portable electric detonator of claim 5 wherein the number of metal terminals is 2.

7. The portable electric detonator of claim 1, wherein the closure between the end cap and the clamping groove is by means of snap-fit or melt-weld or interference fit or threaded connection.

8. A portable electric detonator as claimed in claim 1 wherein said electric detonator is a detonator involving ignition and/or detonation by electric drive.