CN201607180U

CN201607180U - Safety electronic detonator

Info

Publication number: CN201607180U
Application number: CN2009202777480U
Authority: CN
Inventors: 颜景龙
Original assignee: BEIJING BANGIUNION TECHNOLOGY DEVELOPMENT Co Ltd
Current assignee: Beijing Ebtech Tech Co Ltd
Priority date: 2009-12-10
Filing date: 2009-12-10
Publication date: 2010-10-13
Anticipated expiration: 2019-12-10

Abstract

The utility model discloses a safety electronic detonator which comprises a leg wire, a pipe stopper, an electronic detonator control circuit board, an ignition head, a stiffened cap and the like. Particularly, a clamping tenon device is installed on the wall of a pipe shell; and when the detonator is arranged vertical to the ground with the mouth facing upwards, the clamping tenon device is arranged above the ignition head. The clamping tenon device can be one or a plurality of raised convex points on the inner wall of the pipe shell, and also can be a raised convex ring on the inner wall of the pipe shell; the plane, on which the convex ring is formed, is vertical to the axle wire of the detonator; furthermore, the raised height of the convex point or the convex ring is larger than the distance between the outer wall of the ignition head and the inner wall of the pipe shell, and less than or equal to half of the difference between the inner diameter of the pipe shell and the width value of the circuit board. By adopting the technical scheme, the safety electronic detonator reduces the possibility of illegal explosion caused by modifying the electronic detonator into detonators of other modes by adopting a physical disturbance manner, thus further improving the social safety of the electronic detonator.

Description

The Safty electronic detonator

Technical field

The utility model relates to priming system manufacturing technology field, relates in particular to a kind of Safty electronic detonator.

Background technology

The eighties in 20th century, developed countries such as Japan, Australia, the Europe electric detonator technology that begins one's study.Along with electronic technology, microelectric technique, fast development of information technology, the electric detonator technology has obtained great progress.Late 1990s, electric detonator begins to be dropped into application test and marketing.

The intrinsic safety of electric detonator and cipher control detonating technique have greatly reduced the threat of detonator product to social safety.

The loading method that provides in the patent application document 200810084639.7 improved detonator security in process of production, and improved performances such as the anti-vibration of detonator product in transportation and use, anti-vibration, impact resistance.The strengthening cap technical scheme that provides in the patent application document 200820111272.9; provide a kind of and can strengthen initiating ability better, and can more effectively protect the not loose strengthening cap that leaks of priming, thereby also improved the detonator product in the security of transportation with use.These technology are applied to the electric detonator field, all help to improve electric detonator security structurally.

Based on the design of electric detonator electronic control part, when using electric detonator, personnel, employing specialized apparatus that must the appointment electric detonator that could normally detonate has been realized the intrinsic safety of electric detonator in use.But, still can't avoid unauthorized person to steal detonator after, adopt mechanical system to destroy the structure and then the illegal detonating capsule of electric detonator.For example, from the sawed-off shell of detonator pipe close bayonet socket, then payment to a porter, pipe close, electronic control part, the first-class parts of igniting are extracted in the lump, the residual fire tube that has then still kept sufficient length, thereby, illegal molecule is enough to insert therein fuse cord or electric igniting assembly, repacks this fire tube into blasting cap or electric cap, and then illegally uses this detonator.

Summary of the invention

The purpose of this utility model is further design on the basis of above-mentioned prior art, a kind of Safty electronic detonator that can reduce the possibility of illegally detonating on the structure is provided, be intended to reduce and adopt the mechanical damage mode to repack electric detonator the possibility of other form detonator into, thereby further improve the social safety of electric detonator.

Technical purpose of the present utility model is achieved through the following technical solutions:

Safty electronic detonator described in the utility model comprises shell, payment to a porter, pipe close, electric detonator control circuit board, igniter head, strengthening cap and fire tube powder charge etc., and wherein the fire tube powder charge can comprise priming, booster explosive and main charge.One end of payment to a porter is welded on an end of electric detonator control circuit board, and the other end of payment to a porter leads to the shell outside via the mouth of pipe of shell; The other end and igniter head of circuit board are combined closely, and formation electrically connects.Above-mentioned igniter head can adopt technical scheme given in the patent application document 200910078238.5.The external diameter of this igniter head is greater than the width of electric detonator control circuit board.

The utility model Safty electronic detonator further improves on the basis of above-mentioned prior art, also has a trip device on the wall of described shell.When detonator when its mouth of pipe is upwards placed perpendicular to ground, above-mentioned trip device is positioned at the top of igniter head.

The benefit of this technical scheme is: when unauthorized person adopts destructive means at the position away from the powder charge of detonator fire tube; from the tight oral area position of pipe close shell is blocked; when intention is extracted parts such as payment to a porter, circuit board by force; this trip device will stop igniter head to be extracted in the lump; thereby ignition charge will still be retained in the medicine chamber of igniter head; and fire tube powder charges such as priming, booster explosive, main charge are also all still protected by igniter head, can't be detonated.Therefore, the fire tube part as need are illegally ignited electric detonator then must be truncated into two sections with detonator shell at the end near the powder charge of detonator fire tube.And near more from ignition charge, the danger of this illegal operation is just big more, thereby by the mechanical damage illegal operation of restriction to electric detonator, has further improved the social safety of electric detonator.

As a kind of preferred version of the present utility model, above-mentioned trip device can be presented as a plurality of salient points protruding on the inwall of shell.The plane of all salient point formation is perpendicular to the axis of detonator, and these salient points evenly distribute on this plane.These salient points can make that igniter head of shell inside can't illegally be extracted, thereby play the effect of avoiding the fire tube charge segment to expose.

More than said all salient point, its protruding height is more preferably greater than the distance between the inwall of the outer wall of igniter head and shell, and is less than or equal to half of difference of the width value of the internal diameter of shell and circuit board.This just can stop igniter head to be pulled out more reliably, and has avoided the damage of trip device to the electric detonator control circuit board.

As another kind of preferred version of the present utility model, trip device also can be presented as one along shell protruding circle circumferential, projection on the inwall of shell, and the plane of this protruding circle formation is perpendicular to the axis of detonator.This mode is simple, is convenient to the mass production of electric detonator.

The height of above-mentioned protruding circle projection is also more preferably greater than the distance between the inwall of the outer wall of igniter head and shell, and is less than or equal to half of difference of the width value of the internal diameter of shell and circuit board.

Description of drawings

Fig. 1 is the structural representation of existing ordinary electronic detonator;

Fig. 2 is the structural representation of the Safty electronic detonator of the utility model band trip device;

Fig. 3 is the structural representation of the utility model Safty electronic detonator after destroyed;

Fig. 4 is the local enlarged diagram of trip device in the utility model;

The A-A profile of electric detonator when Fig. 5 is presented as two salient points for trip device in the utility model;

The A-A profile of electric detonator when Fig. 6 is presented as four salient points for trip device in the utility model;

The A-A profile of electric detonator when Fig. 7 is presented as protruding circle for trip device in the utility model;

The A-A profile of electric detonator when Fig. 8 is presented as six salient points for trip device in the utility model;

Fig. 9 is the A-A profile of existing ordinary electronic detonator.

The specific embodiment

Below in conjunction with the drawings and specific embodiments the technical solution of the utility model is described in further details.

Electric detonator 120 shown in Figure 1 comprises shell 109, payment to a porter 101, pipe close 102, electric detonator control circuit board 103, igniter head 104, strengthening cap 105, and fire tube powder charges such as priming 106, booster explosive 107 and main charge 108.Wherein, an end of payment to a porter 101 is welded on an end of electric detonator control circuit board 103, and the other end of payment to a porter 101 leads to shell 109 outsides via the mouth of pipe 110 of shell 109; The other end of circuit board 103 and igniter head 104 are combined closely, and formation electrically connects.Above-mentioned igniter head 104 adopts given technical scheme in the patent application document 200910078238.5.The external diameter of this igniter head 104 is less than the internal diameter of shell 109, greater than the width of electric detonator control circuit board 103.

The utility model Safty electronic detonator 100 further improves on the basis of above-mentioned prior art, also has a trip device on the wall of shell 109.When detonator 100 when its mouth of pipe 110 is upwards placed perpendicular to ground, above-mentioned trip device is positioned at the top of igniter head 104, referring to Fig. 2.Amplify as shown in Figure 4 the part at the place, trip device place 200 of Safty electronic detonator 100.

The benefit of this technical scheme is, when unauthorized person adopts destructive means that parts such as payment to a porter 101, pipe close 102, control circuit board 103 are extracted by force, this trip device will stop igniter head 104 to be extracted in the lump, referring to shown in Figure 3, thereby fire tube powder charges such as priming 106, booster explosive 107 all will still be isolated from initiating source by igniter head, can't be detonated.This has just ensured the social safety of electric detonator more reliably.

As a kind of preferred version of the present utility model, described trip device can be presented as a plurality of on the inwall of shell 109 salient points 130 of projection, referring to as Fig. 5, Fig. 6 and Fig. 8.The plane that these salient points 130 form is perpendicular to the axis 300 of detonator, and the evenly distribution on this plane of these salient points 130, referring to shown in Figure 2.These salient points 130 can limit igniter head 104 of shell 109 inside and illegally do not extracted, thereby play the effect of explosive in the protection shell 109.

The A-A profile of electric detonator when the trip device that Fig. 5, Fig. 6 and Fig. 8 are respectively the Safty electronic detonator is presented as two salient points, four salient points and six salient points.Compare with A-A profile Fig. 9 of existing ordinary electronic detonator, the height 30 of 130 projectioies of salient point shown in Fig. 5, Fig. 6 and Fig. 8 is greater than the distance 10 between the inwall of the outer wall of igniter head 104 and shell 109.Meanwhile, the height 30 of salient point 130 projectioies also is less than or equal to half the distance value 20 of difference of shell 109 internal diameters and circuit board 103 width values, thereby after salient point 130 projectioies, and kept distance 40 between the circuit board 103 at least.This just can stop igniter head 104 to be pulled out more reliably, can avoid the damage of trip device to electric detonator control circuit board 103 again.

As another kind of preferred version of the present utility model, trip device also can be presented as one along shell 109 protruding circles 111 circumferential, projection on the inwall of shell 109, and the plane of these protruding circle 111 formation is perpendicular to the axis 300 of detonator 100, referring to shown in Figure 2.This mode is simple, is convenient to the mass production of electric detonator.

With the A-A profile of the Safty electronic detonator of protruding circle 111 as shown in Figure 7.The height of protruding circle 111 projectioies is also more preferably greater than the distance 10 between the inwall of the outer wall of igniter head 104 and shell 109, and be less than or equal to half the distance value 20 of difference of shell 109 internal diameters and circuit board 103 width values, thereby kept distance 40 between protruding circle 111 and the circuit board 103 at least, referring to Fig. 8 and Fig. 9.

Trip device in the utility model, no matter be presented as the salient point 130 shown in Fig. 5, Fig. 6 or Fig. 8, still be presented as the protruding circle 111 shown in Figure 7 that forms by countless salient points 130, all must after the assembling of having finished whole electric detonator, could form, otherwise electric detonator can't normally assemble.

Be presented as that with trip device shown in Figure 7 the embodiment of protruding circle is an example.Finish assembling when electric detonator, form electric detonator 120 shown in Figure 1 after, in Fig. 1 a little more than the position of igniter head 104 chucking, thereby form electric detonator 100 shown in Figure 2, the trip device of this detonator 100 promptly shows as the protruding circle 111 on detonator shell 109 inwalls.The A-A profile of this electric detonator 100 as shown in Figure 7.It seems that from the outward appearance of electric detonator 100 trip device then shows as a recessed circle on the outer wall of detonator shell 109.

Claims

1. a Safty electronic detonator comprises shell, payment to a porter, pipe close, electric detonator control circuit board, igniter head, strengthening cap and fire tube powder charge,

Wherein, an end of described payment to a porter is welded on an end of described electric detonator control circuit board, and the other end of described payment to a porter leads to described shell outside via the mouth of pipe of described shell; The other end of described circuit board and described igniter head are combined closely, and form and to electrically connect,

It is characterized in that:

One trip device is arranged on the wall of described shell,

When described detonator was upwards placed perpendicular to ground at its described mouth of pipe, described trip device was positioned at the top of described igniter head.

2. according to the described Safty electronic detonator of claim 1, it is characterized in that:

Described trip device is a plurality of salient points protruding on the inwall of described shell;

The plane of all described salient point formation is perpendicular to the axis of described detonator; All described salient point evenly distributes on this plane.

3. according to the described Safty electronic detonator of claim 2, it is characterized in that:

The height of described salient point projection is greater than the distance between the inwall of the outer wall of described igniter head and described shell, and is less than or equal to half of difference of the width value of the internal diameter of described shell and described circuit board.

4. according to the described Safty electronic detonator of claim 1, it is characterized in that:

Described trip device be one along described shell circumferentially, on the inwall of described shell the protruding circle of projection; The plane that described protruding circle forms is perpendicular to the axis of described detonator.

5. according to the described Safty electronic detonator of claim 4, it is characterized in that:

The height of described protruding circle projection is greater than the distance between the inwall of the outer wall of described igniter head and described shell, and is less than or equal to half of difference of the width value of the internal diameter of described shell and described circuit board.