CN111207632A

CN111207632A - Electronic detonator leg wire tail end connecting device and blasting system and application thereof

Info

Publication number: CN111207632A
Application number: CN202010111737.6A
Authority: CN
Inventors: 谢正怀
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-24
Filing date: 2020-02-24
Publication date: 2020-05-29
Also published as: CN212567167U; CN111486758A; CN112378297A; CN214792816U

Abstract

The invention discloses an electronic detonator leg wire end connecting device and a blasting system and application thereof, wherein the device comprises two sections of easily-detachable male and female butting plug-ins, the easily-detachable male and female butting plug-ins comprise a male plug-in and a female plug-in, and no locking connecting part is arranged, the male plug-in and the female plug-in can conduct a circuit after being spliced, the male plug-in is connected to a detonating bus, the female plug-in is connected to another section of detonating bus and a detonator leg wire, the internal part is sealed and waterproof after being spliced, the male and female plug-ins which can ensure the parallel circuit connection and simultaneously meet micro external force and easily fall off are molded by adopting a PVC material, and the two difficult problems of timely disconnection, no disconnection of metal wire connection and no short circuit of a waterproof junction box connection circuit caused by the prior electronic detonator leg wire connecting device due to the sequential influence of detonation caused by the delay difference of adjacent electronic detonators, the set blasting shape and the target of directional blasting can be realized.

Description

Electronic detonator leg wire tail end connecting device and blasting system and application thereof

Technical Field

The invention relates to the technical field of detonator blasting, in particular to an electronic detonator leg wire tail end connecting device and a blasting system and application thereof.

Background

The electronic detonator is also called a digital electronic detonator, a digital detonator or an industrial digital electronic detonator, namely an electronic detonator which controls the detonation process by adopting an electronic control module. As shown in fig. 1, in the current electronic detonator blasting system, each electronic detonator connects the tail wire to the detonation bus in parallel, and the connection and installation are completed through the junction box, usually, a plurality of junction boxes are connected to the detonation bus in a clamping manner, and the detonation bus is made of metal wire materials such as copper core wires, and the surface skin needs to be manually stripped during installation, so as to ensure that the cutter contacts the copper core wires, and then the detonator and the detonation bus are wound together.

In order to realize the shape and directional blasting of the set blasting, different sections of different blasting detonators are arranged in adjacent blasting holes and are sequentially detonated after being connected with a network one by one in a delayed manner, and the different sections of the blasting detonators can only receive a blasting signal at the same time, so that the mutually connected blasting networks are required to be disconnected at the moment that each detonator receives the blasting signal, otherwise, the blasting holes which are detonated at first can pull out and shift the detonators which are not detonated in the adjacent holes due to the delay, so that the set blasting shape and blasting directional target cannot be realized;

the existing leg wire connecting device for connecting and blasting network electronic detonators is characterized in that metal wires are very firmly connected and cannot be disconnected after receiving a detonation signal, so that the impact force of an initial blasting hole drags and displaces detonators which are not blasted due to time delay in adjacent holes through a metal network connecting wire or a connecting piece which cannot fall off due to micro force, and the set blasting shape and the target of directional blasting cannot be realized; after the blasting network is formed, the blasting signal of the electronic detonator is transmitted to each digital electronic detonator by the metal lead, so that the circuit of the blasting network is required to be smooth, but the blasting network connecting device of the electronic detonator is not waterproof at present, so that the whole blasting network is short-circuited due to the waterproofness, and a certain or even a plurality of digital electronic detonators in the blasting network cannot receive the blasting signal to become blind shots, thereby further preventing the set blasting shape and the directional blasting target from being realized.

Disclosure of Invention

In order to solve the problems existing in the prior art, the inventor is designed through research and development, the unstable problem caused by waterproof and blasting acting force is solved together, the traditional leg wire connecting device can be replaced, the device is waterproof, the device can fall off from a mother board under the blasting acting force after the blasting of a detonator, the position displacement of other detonators cannot be influenced, a more stable line blasting system is further achieved, the butt joint installation is convenient and quick, and the efficiency, the stability and the safety of blasting deployment are effectively improved.

Specifically, the invention is realized by the following steps: the tail end connecting device of the electronic detonator leg wire comprises two sections of mutually detachable and easily-detachable male and female butting plug-ins, each easily-detachable male and female butting plug-in comprises a male plug-in and a female plug-in, and no locking connecting part is arranged, the male plug-in and the female plug-in can conduct a circuit after being spliced, the male plug-in is connected to a detonation bus, the female plug-in is connected to another section of the detonation bus and the detonator leg wire, the male plug-in and the female plug-in are integrally formed adapter pieces, and the inside of the electronic detonator leg wire is sealed and waterproof after being spliced.

Furthermore, the whole of the easy-to-drop male-female butting plug-in component is a front-back two-way tubular body, the male plug-in component comprises a plug-in cap body and a raised head part, the female plug-in component comprises a female plug-in body, a line electrode and a groove part, the line electrode and the groove part are arranged in the female plug-in body, the raised head part and the groove part are matched, and at least one circle of waterproof ring is arranged on the outer edge of the plug-in cap body or the inner edge of the female.

Furthermore, the rear end of the plug cap body is connected with a detonation bus, and the line electrode is connected to the other section of detonation bus and one section of detonator leg wire and is connected out from the tail part of the female plug body.

Furthermore, the end part of the raised head part is provided with an inwards concave section, and an inwards convex part matched with the inwards concave section is arranged in the groove part.

Furthermore, the surface of the inner concave section and the inner convex part are made of metal conducting materials and are connected to firing wires on a detonating bus and a detonator leg wire; and the outer surface of the raised head part and the inner wall surface of the groove part are both provided with metal guide sheets which are respectively connected to zero lines on a detonating bus and a detonator leg wire.

Furthermore, the outer edge of the plug cap body is provided with two circles of waterproof rings, the inner wall of the opening end of the groove portion is provided with a mounting groove matched with the outer diameter of the two circles of waterproof rings 13, and the surface of the mounting groove is smoothly located at the inner edge of the opening of the groove portion. .

Furthermore, the whole of the easy-to-fall male-female butt joint plug-in is a three-way tubular body, the branch joint section is arranged on the side end of the tail part of the female plug-in body and extends vertically, and a detonator leg wire connected to a line electrode in the female plug-in body passes through the branch joint section and is connected to an electronic detonator.

The invention also provides an electronic detonator blasting system which comprises an initiator, a blasting bus connected with the initiator and a plurality of electronic detonators, wherein each electronic detonator is connected to the electronic detonator blasting connecting device through a detonator leg wire and connected to the blasting bus in parallel, and the blasting bus is divided into a plurality of sections which are respectively communicated with the electronic detonator blasting connecting devices for communication.

The working principle of the invention is introduced: the invention uses the easy-to-fall male-female butting plug-in piece to replace the traditional junction box, the easy-to-fall male-female butting plug-in piece can also play a role of connecting a circuit, and the design of a locking part is absent, the traditional plug is completely different from the traditional plug thinking, the traditional plug needs to be plugged as a design purpose and needs to be manually disconnected, so the locking parts in the forms of threads, buckles and the like are often used for plugging and connecting, and on the contrary, the invention uses the plug-in structure design capable of automatically disengaging, so that the easy-to-fall male-female butting plug-in piece is only in butt joint connection in a mutually-plugged connection installation mode, the easy-to-fall male-female butting plug-in piece after butt joint is in an integral sealing state, can prevent water and water from being leaked to the outside, can transmit a blasting instruction to each detonator when encountering the pulling action force generated by blasting after blasting the detonator, can easily separate the easy-to-fall male-female butting, The blasting shape and directional blasting target can be accurately realized by separating from the blasting shape and directional blasting, so that the effect of immediate disconnection is realized, the pulling effect on other buses is avoided, the stability of the circuits of other detonating buses and detonators is ensured, the accuracy of the whole blasting process is ensured, the problem of blasting position deviation caused by the displacement of other detonators generated by blasting is avoided.

Compared with the prior art, the invention has the following beneficial effects:

(1) butt joint simple to operate is high-efficient, during the in-service use, only need arrange good detonator back according to blasting design demand, with detonator leg wire butt joint electron detonator, insert the public plug-in components of access detonation generating line with the female plug-in components, constitute the public female butt joint plug-in components of easily taking off after inserting, need not to carry out tangent line installation like traditional terminal box and press from both sides tightly, consequently uses the installation effectiveness to improve, stability, success rate also are better than traditional terminal box.

(2) Because the male and female butt joint plug-in components that easily fall off are wholly tubulose, and the front and back leading-out terminal is the slot, and the waterproof ring of butt joint seam department design for inside wiring is in encapsulated situation, has good waterproof rain-proof function of water proof, has effectively improved the security and the stability of use, installation arrangement in-process, has solved the short circuit problem that traditional terminal box met water and rain and cause.

(3) The use public female butt joint plug-in components that easily drop, both kept the integrality and the stability of initiation system circuit, can form the design that breaks away from easily according to each detonator again, the disconnection protection can be struggled from easily automatically to formation after the electronic detonator receives the initiation signal explosion, can not influence the connection stability of all the other initiation generating lines, thereby the continuity of whole electronic detonator blasting procedure has been ensured, complete operation, solved the tradition and relied on a whole piece continuous, difficult initiation generating line of disconnection because the mutual pulling that the explosive action power produced influences the circuit trouble that causes and cause the displacement deviation of blast point, the accuracy nature of blast point has been ensured, ensure that the blasting process is accurate controllable.

Drawings

FIG. 1 is a schematic structural diagram of a conventional junction box for blasting connection of an electronic detonator;

FIG. 2 is a front view of a male-female plug-in structure of the electronic detonator leg wire tail end connecting device;

FIG. 3 is a schematic perspective view of a male plug of the pin wire end connection device of the electronic detonator;

FIG. 4 is a schematic perspective view of a female connector of the pin wire end connection device of the electronic detonator;

FIG. 5 is a front view of a male-female plug structure of the pin wire end connecting device of the electronic detonator in embodiment 3;

fig. 6 is a schematic perspective view of a female connector of the pin wire end connection device of the electronic detonator according to embodiment 3;

FIG. 7 is a schematic diagram of an actual layout of the connecting device at the tail end of the leg wire of the electronic detonator, namely a schematic diagram of a structure of an electronic detonator blasting system,

FIG. 8 is a schematic diagram of an actual blasting instant automatic disconnection of the electronic detonator leg wire tail end connecting device;

fig. 9 is a schematic view of an automatic disconnection at the moment of actual blasting of the electronic detonator leg wire end connection device in embodiment 3;

fig. 10 is a schematic view of an electronic detonator leg wire end connecting device in embodiment 4, which is automatically disconnected at the moment of actual blasting;

FIGS. 11 to 13 are schematic structural views of electronic detonators using the tail end connecting device of the leg wire of the electronic detonator of the invention;

wherein:

1-male plug, 11-cap body, 12-raised head part, 13-waterproof ring, 14-concave section,

2-female member, 21-female body, 22-line electrode, 23-groove portion, 24-inner convex portion, 25-mounting groove,

3-detonating bus, 31-firing line, 32-zero line,

4-detonator leg wire, 5-fork connecting section, No. 6-1 electronic detonator, No. 7-2 electronic detonator and No. 8-3 electronic detonator.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

Example 1: as shown in fig. 2, 3 and 4, the electronic detonator leg wire end connecting device comprises two sections of mutually detachable and easily detachable male and female butting plug-ins, each easily detachable and easily detachable male and female butting plug-in includes a male plug-in 1 and a female plug-in 2, and no locking connecting part exists, the male plug-in 1 and the female plug-in 2 can conduct a circuit after being spliced and connected, the male plug-in 1 is connected to a detonation bus 3, the female plug-in 2 is connected to another section of detonation bus 3 and a detonator leg wire 4, the male plug-in 1 and the female plug-in are integrally formed adapter pieces, and the interior of the electronic detonator leg wire end connecting device is sealed and waterproof after being spliced. One end of the detonation bus 3 is connected to the detonator, the rest detonation buses 3 are divided into a plurality of sections which are sequentially connected between the female plug-in unit 2 and the male plug-in unit 1 to form a complete detonation bus 3, the butt-jointed male and female plug-in units which are easy to fall are all connected in parallel to each electronic detonator, the electronic detonators are connected into the female plug-in units 2 through detonator leg wires 4, and the electronic detonators are connected into the detonation bus 3 in parallel through the male and female plug-in units which are easy to fall. The non-locking connecting component means that locking is not needed between the male plug-in unit 1 and the female plug-in unit 2, namely clamping and locking components similar to threads, buckles and the like are not needed, and only through opposite insertion and insertion, the connecting form can ensure that a circuit is connected, meanwhile, a waterproof function is achieved, disconnection can be easily completed when external force is applied to pulling, and the disconnection can not affect the positions of other follow-up electronic detonators. Thereby realize receiving the detonation signal explosion at electronic detonator after, can struggle easily and break off formation disconnection protection voluntarily, can not influence the connection stability of all the other detonation generating lines 3, thereby ensured the continuous, complete operation of whole electronic detonator blasting procedure, solved the tradition and relied on a whole piece continuous, difficult detonation generating lines 3 of breaking off because the line trouble that the influence caused is drawn each other to draw that the explosion effort produced and cause the displacement deviation of blast point, ensured the accuracy nature of blast point, ensured that the blasting process is accurate controllable.

Example 2: on the basis of embodiment 1, as shown in fig. 2 to 4, 7 and 8, preferably, the whole of the easy-to-drop male and female docking insert is a tubular body with a front and back two-way type, the male insert 1 includes an insert cap body 11 and a raised head portion 12, the female insert 2 includes a female insert body 21, a line electrode 22 and a groove portion 23, the line electrode 22 and the groove portion 23 are disposed in the female insert body 21, the raised head portion 12 and the groove portion 23 are matched, and at least one circle of waterproof ring 13 is disposed on an outer edge of the insert cap body 11 or an inner edge of the female insert body 21. In practical use, the cap body 11 is held by hand, the raised head part 12 is aligned with the groove part 23 on the female plug body 21 of the female plug 2, the raised head part 12 is inserted into the groove part 23, and the butt joint of the male plug 2 and the female plug 2 is completed. The rear end of the plug cap body 11 is connected with the initiation bus 3, and the line electrode 22 is connected to the other section of initiation bus 3 and one section of detonator leg wire 4 and is connected out from the tail part of the female plug body 21. The male and female plug members 2 are connected to each other through the protruding head portion 12 and the recessed portion 23, and the line electrode 22 is connected to the corresponding live line 31 and the neutral line 32. Preferably, the end of the nose portion 12 is provided with a concave inner section 14, and the groove portion 23 is internally provided with an inner convex portion 24 matched with the concave inner section 14. The surface of the inner concave section 14 and the inner convex part 24 are made of metal conducting materials and are connected to a firing line 31 on the detonating bus 3 and the detonator leg wire 4; and metal guide sheets are arranged on the outer surface of the raised head part 12 and the inner wall surface of the groove part 23 and are respectively connected to a zero line 32 on the detonating bus 3 and the detonator leg wire 4. When inserted into abutment, the female segments 14 engage the inner projections 24 and the outer surfaces of the male portions 12 engage the inner wall surfaces of the female recess portions 23 to form a conductive transmission.

Preferably, two circles of waterproof rings 13 are arranged on the outer edge of the plug-in cap body 11, an installation groove 25 matched with the outer diameters of the two circles of waterproof rings 13 is formed in the inner wall of the opening end of the groove portion 23, and the surface of the installation groove 25 is smoothly located at the inner edge of the opening of the groove portion 23. . When the male and female plug-in components 2 are butted, the waterproof ring 13 is clamped into the mounting groove 25, so that the waterproof sealing effect can be achieved, a certain stable and firm insertion and mounting function can be achieved, and the waterproof plug-in components are mainly used for preventing the phenomenon of falling off and disconnection due to dead weight.

Example 3: in addition to the

embodiments

1 and 2, as shown in fig. 5, 6 and 9, the easily detachable male and female mating plug is a three-way tubular body made of PVC material, the branch section 5 is disposed on the tail side end of the female plug body 21 and extends vertically, and the detonator leg wire 4 connected to the line electrode 22 inside the female plug body 21 is connected to the electronic detonator through the branch section 5. The branch connection section 5 and the female plug body 21 form a vertical right-angle section for arranging the detonator leg wire 4, and the branch connection section is separated from the detonating bus 3, so that the installation efficiency can be improved.

Example 4: an electronic detonator blasting system comprises an exploder, a blasting bus 3 connected with the exploder and a plurality of electronic detonators, wherein each electronic detonator is connected into the electronic detonator blasting connecting device described in the

embodiments

1, 2 and 3 through a detonator leg wire 4 and is connected to the blasting bus 3 in parallel, and the blasting bus 3 is divided into a plurality of sections which are respectively communicated with the electronic detonator blasting connecting devices for communication. As shown in fig. 10, the detonation bus bar 3 and the detonator leg wire 4 are both of a single wire type. As shown in FIGS. 11-13, the electronic detonators can be produced in the structure and form shown in the figures, and the detonator structure comprising the device of the invention also falls into the protection scope of the invention.

Taking blasting three electronic detonators as an example, in actual blasting, as shown in fig. 7 or fig. 10, after the electronic detonators are placed at preset blasting point positions, the female plug-ins 2 of the detonator leg wires 4 connected with each electronic detonator are sequentially inserted into the male plug-ins 1 connected with the detonating bus 3 to form a complete detonating bus 3 and a plurality of electronic detonators connected to the detonating bus 3 in parallel, after system detection and verification are passed, blasting can be started, a detonating signal is transmitted to all three electronic detonators through the detonating bus 3, the three electronic detonators receive respective detonating instructions, for example, the electronic detonator 6 No. 1 is blasted after 5 seconds from receiving the detonating instruction, the electronic detonator 7 No. 2 is blasted after 8 seconds from receiving the detonating instruction, the electronic detonator 8 No. 3 is blasted after 11 seconds from receiving the detonating instruction, once the detonating instruction is transmitted, the detonating bus 3 is disabled, the No. 1 electronic detonator is detonated, the male and female plug-in units 2 connected with the No. 1 electronic detonator after blasting are subjected to external force and are mutually separated and disconnected, and the pulling force generated by blasting cannot act on the No. 2 electronic detonator and the No. 3 electronic detonator through the detonating bus 3. The No. 2 electronic detonator is detonated, the male and female plug-ins 2 connected with the No. 2 electronic detonator are separated and disconnected with each other under the action of external force after blasting, and similarly, the pulling force generated by blasting cannot act on the No. 3 electronic detonator through the detonating bus 3, and then the No. 3 electronic detonator is blasted; the blasting system changes the connection form of a traditional completely connected blasting bus 3, not only maintains the integrity and stability of a blasting system circuit, but also can form a design of easy separation and disconnection according to each detonator, can easily and automatically break loose to form disconnection protection in the explosion generated by the electronic detonator receiving a blasting signal, and cannot influence other detonators, thereby ensuring the continuous and complete operation of the whole blasting program of the electronic detonator, solving the problems of the traditional method that the blasting effect is wrong and deviation caused by dislocation and displacement of blasting points due to the mutual pulling influence generated by the blasting action force of the traditional continuous and difficultly disconnected blasting bus 3, and effectively ensuring the complete, accurate and effective work of the blasting program.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. The electronic detonator leg wire end connecting device is characterized by comprising two sections of mutually detachable and easily-falling male and female butt joint plug-ins, wherein each easily-falling male and female butt joint plug-in comprises a male plug-in (1) and a female plug-in (2) and is free of a locking connecting part, a circuit can be conducted after the male plug-in (1) and the female plug-in (2) are connected in an inserting mode, the male plug-in (1) is connected to a detonation bus (3), the female plug-in (2) is connected to another section of the detonation bus (3) and a detonator leg wire (4), and the inside of the butt joint is sealed and waterproof.

2. The electronic detonator leg wire end connecting device according to claim 1, wherein the easily detachable male and female butt joint plug-in unit is a tubular body with a front and a rear two-way type, the male plug-in unit (1) comprises a plug-in cap body (11) and a raised head portion (12), the female plug-in unit (2) comprises a female plug-in unit body (21), a line electrode (22) and a groove portion (23) which are arranged in the female plug-in unit body (21), the raised head portion (12) and the groove portion (23) are matched, and at least one circle of waterproof ring (13) is arranged on the outer edge of the plug-in cap body (11) or the inner edge of the female plug-in unit body (21).

3. The electronic detonator leg wire end connection device according to claim 2, wherein the rear end of the plug body (11) is connected to the detonation bus bar (3), and the line electrode (22) is connected to another section of the detonation bus bar (3) and a section of the detonator leg wire (4) and is connected out of the tail of the female plug body (21).

4. The electronic detonator leg wire end connection device according to claim 2, wherein the end of the nose portion (12) is provided with a concave inner section (14), and an inner convex portion (24) adapted to the concave inner section (14) is provided inside the groove portion (23).

5. The electronic detonator leg wire end connection device according to claim 4, wherein the surface of the concave section (14) and the inner convex part (24) are both made of metal conductive materials and are both connected to the firing line (31) on the detonation bus bar (3) and the detonator leg wire (4); and metal guide sheets are arranged on the outer surface of the raised head part (12) and the inner wall surface of the groove part (23) and are respectively connected to a zero line (32) on the detonating bus (3) and the detonator leg wire (4).

6. The electronic detonator leg wire end connection device according to claim 2, wherein two circles of waterproof rings (13) are arranged on the outer edge of the plug cap body (11), an installation groove (25) matched with the two circles of waterproof rings (13) in outer diameter is formed in the inner wall of the opening end of the groove portion (23), and the surface of the installation groove (25) is smoothly located at the inner edge of the opening of the groove portion (23). .

7. The electronic detonator leg wire end connection device according to claim 2, wherein the easily detachable male and female mating plug is a three-way tubular body as a whole, the branch connection section (5) is provided on the tail side end of the female plug body (21) to extend vertically, and the detonator leg wire (4) connected to the line electrode (22) inside the female plug body (21) is connected to the electronic detonator through the branch connection section (5).

8. The electronic detonator blasting system comprises an exploder, a blasting bus (3) connected with the exploder and a plurality of electronic detonators, and is characterized in that each electronic detonator is connected to the electronic detonator leg wire connecting device of any one of claims 1 to 7 through a detonator leg wire connecting device (4) and is connected to the blasting bus (3), and the blasting bus (3) is divided into a plurality of sections which are respectively communicated with the electronic detonator leg wire connecting devices for communication.

9. Use of an electronic detonator leg wire connection device according to any one of claims 1 to 7 in the field of detonator blasting.