CN202304637U

CN202304637U - Easy-to-ignite delay electric detonator with high delay precision

Info

Publication number: CN202304637U
Application number: CN2011204167104U
Authority: CN
Inventors: 黄洪川; 林志文; 余海丰; 张东平; 刘文生; 吴周吕
Original assignee: JIANGXI XINYU GUOTAI SPECIALTY CHEMICALS Co Ltd
Current assignee: JIANGXI XINYU GUOTAI SPECIALTY CHEMICALS Co Ltd
Priority date: 2011-10-19
Filing date: 2011-10-19
Publication date: 2012-07-04
Anticipated expiration: 2021-10-19

Abstract

The utility model provides an easy-to-ignite delay electric detonator with high delay precision. The electric detonator comprises main explosive, loose explosive, initiating explosive, flash detonator igniting powder, a stiffened cap, a delay tube, a delay piece, delay powder, an electric igniting head and a tube shell, and is characterized in that one layer of transitional powder and one layer of delay body igniting powder are sequentially pressed on both the delay piece and the delay powder, a hole is formed on the tube shell in the position 16-20mm away from the end part of the tube shell opening, and an adhesive tape is used for wrapping and winding the tube wall to seal the hole. The delay electric detonator has the effects that firstly, the delay body is easy to ignite, and misfire is avoided; and secondly, the delay precision is high and the delay time can be guaranteed.

Description

Be prone to point and the high delay electric detonator of delay precision

Technical field: the utility model relates to a kind of improved delay electric detonator, particularly a kind of easy point and the high delay electric detonator of delay precision.

Background technology: existing delay electric detonator, see accompanying drawing 1, it is mainly by main charge 1, bulk powder charge 2, priming 3, and blasting cap ignition charge 4, strengthening cap 5, the pipe 6 of delaying, extension part 7, delay powder 8, electric match 9, shell 10 are formed.The deficiency that the delay electric detonator of this kind structure in use exists is: 1, the igniting of extension body is difficult; Because the igniting of extension body is to lean on two payment to a porter of electric match to pass to the electric current ignition powder head of certain intensity; The medicine head is in interior air chamber internal combustion, the flame ignition extension body of generation, but because of the extension body along with other raising of section of delaying; The flame that electric match produces then is difficult to light the extension body reliably, is easy to generate the phenomenon of misfire; 2, delay precision is not high; Defer time is difficult to guarantee that after this lighted the extension body because of electric match, the gas that delay powder produces continued to increase; Also constantly increase in limited air chamber internal pressure thereupon; And the extension body shortens along with the increase of air chamber pressure burning time, thereby influences the delay precision of extension body.

Summary of the invention: the purpose of the utility model is; To having the deficiency that delay electric detonator in use exists now; And a kind of easy point and the high delay electric detonator of delay precision be provided, it have easily light, can not misfire, delay precision is high, defer time can guaranteed advantage.

Can realize the utility model purpose through following technical proposals; A kind of easy point and the high delay electric detonator of delay precision; Comprise main charge, bulk powder charge, priming, blasting cap ignition charge, strengthening cap, extension pipe, extension part, delay powder, electric match, shell, it is characterized in that, press-fit one deck transitional medicine and one deck extension body ignition charge at the extension part with above the delay powder successively; On shell, open a hole, the hole is sealed with adhesive tape looping tube wall from 16～20mm place, shell mouth end.

The diameter in said hole is 1.5～2.1mm.

The specification of said adhesive tape is that thickness 0.1～0.3mm, width are 10～14mm.

The effect of the utility model is: 1, the igniting of extension body easily; The phenomenon that misfire can not occur; This because the utility model at the extension part with press-fited one deck transitional medicine above the delay powder and one deck extension body ignition charge, light transitional medicine through extension body ignition charge, transitional medicine is lighted the extension body to a lasting time; Thereby make the igniting of extension body be guaranteed, the phenomenon of misfire can not occur; 2, delay precision is high, and defer time can guarantee that this is because the utility model has a hole from 16～20mm place, shell mouth end on shell; And with adhesive tape it is covered, after electric match is got angry, can adhesive tape be washed open; Air chamber and atmosphere in this hole can make, air chamber air pressure and atmospheric pressure are in poised state basically in it, have eliminated the pressure gap in the air chamber; Make the burning of extension body normal, thereby delay precision is improved, defer time is accurate.

Below in conjunction with accompanying drawing and embodiment the utility model is further set forth:

Description of drawings:

Accompanying drawing 1 is the structural representation of existing delay electric detonator.

Accompanying drawing 2 is the structural representation of the utility model.

The specific embodiment:

Referring to accompanying drawing 2; A kind of easy point and the high delay electric detonator of delay precision, it is made up of main charge 1, bulk powder charge 2, priming 3, blasting cap ignition charge 4, strengthening cap 5, the pipe 6 of delaying, extension part 7, delay powder 8, electric match 9, shell 10, transitional medicine 11, extension body ignition charge 12, adhesive tape 13.Inner bottom part from shell 10; Adorn main charge 1, bulk powder charge 2, priming 3, blasting cap ignition charge 4, strengthening cap 5, delay pipe 6, extension part 7, delay powder 8 successively, transitional medicine 11 is fitted on extension part 7 and the delay powder 8, and extension body ignition charge 12 is fitted on the transitional medicine 11; The function of transitional medicine 11 and extension body ignition charge 12 is to make the extension body to light easily; Electric match 9 is contained in the mouth end of shell 10, and air chamber air pressure and atmospheric pressure are in state in a basic balance in when burning in order to make, and make extension body normal combustion; On shell, open a hole from 18mm place, shell mouth end; The diameter in hole is 1.8mm, uses thickness to be 0.2mm, and width is that the adhesive tape of 12mm is sealed the hole around tube wall looping two circles.

Claims

1. one kind is prone to point and the high delay electric detonator of delay precision; Comprise main charge, bulk powder charge, priming, blasting cap ignition charge, strengthening cap, extension pipe, extension part, delay powder, electric match, shell; It is characterized in that; Press-fit one deck transitional medicine and one deck extension body ignition charge at the extension part with above the delay powder successively, on shell, open a hole, the hole is sealed with adhesive tape looping tube wall from 16～20mm place, shell mouth end.

2. by described easy point of claim 1 and the high delay electric detonator of delay precision, it is characterized in that the diameter that shell is attend institute's perforate is 1.5～2.1mm.

3. by claim 1 or 2 described easy point and the high delay electric detonators of delay precision, it is characterized in that the specification of said adhesive tape is that thickness 0.1～0.3mm, width are 10～14mm.