CN201348470Y

CN201348470Y - Safety-type long delay primer cap

Info

Publication number: CN201348470Y
Application number: CNU2008202284417U
Authority: CN
Inventors: 王英; 胡小东; 王建军; 张红春
Original assignee: XI'AN QINGHUA CIVIL EXPLOSIVE EQUIPMENT CO Ltd
Current assignee: Xian Qinghua Civil Explosives Co., Ltd.
Priority date: 2008-12-24
Filing date: 2008-12-24
Publication date: 2009-11-18
Anticipated expiration: 2018-12-24

Abstract

The utility model relates to the field of explosion equipment, in particular to a safety-type long delay primer cap, which is characterized in that an input end port (15) and an output end port (7) are arranged on a box body (4), the input end port (15) and the output end port (7) are communicated with an inner cavity (3), a delay cord (10) is placed in the inner cavity (3), one end of the delay cord (10) is connected with a flash detonator (6), the other end of the delay cord (10) is connected with a detonating tube (13), and delay powder (11) is arranged in the delay cord (10). The safety-type long delay primer cap enables a blasting network to have good detonation safety and high reliability.

Description

Safety-type long delay detonating capsule

Technical field

The utility model relates to blasting material field, particularly a kind of safety-type long delay detonating capsule.

Background technology

At present, when the controlled blasting of carrying out places such as down-hole, open pit quarry and tunnel, tunnel piercing and engineering explosion, generally adopt electric cap and two kinds of detonation modes of Nonel detonator, these two kinds of detonation modes all need to extend longer electric wire or detonator, if employing electric detonator initiation, in some cases, exist couple current, static, radio frequency, direct current and alternating current, the thunder and lightning etc. of stray electrical current, high-tension bus-bar to bring harm as the explosion scene to shotfiring safety; If adopt comparatively safe Nonel detonator detonation mode, detonator may be scratched by hard rock, injure by a crashing object, intakes in the process of extending, and influences detonation propagation reliability of nonel tube, need detonator longer simultaneously, hundreds of rice is gone up km at most at least, the cost height that detonates, less economical.

Summary of the invention

The utility model purpose provides a kind of safety-type long delay detonating capsule, and it makes detonates blasting network security is good, reliability is high.

The utility model is to realize like this, design a kind of safety-type long delay detonating capsule, it is characterized in that: input port and output port are arranged on box body, input port, output port communicate with inner chamber, the extension rope is placed in the inner chamber, extension rope one end is connected with blasting cap, and the extension rope other end is connected with detonator, in the extension rope delay powder is arranged.

Described extension rope skin is coated with thermal sleeve, and the coiling of extension rope levels has a thermal insulation board between the dish extension rope upper, middle and lower layer well.

Described extension rope one end and blasting cap are pegged graft, and the other end and joint sleeve are pegged graft, and the oral area of blasting cap and joint sleeve is respectively that it can make extension rope two ends be fixed on respectively in blasting cap and the joint sleeve with the tightening mouth after the external force deformation.

Described blasting cap is enclosed within the inner chamber of contiguous block, and the blasting cap that is enclosed within the contiguous block inner chamber is stretched out by output port.

Described detonator one end is pegged graft by bayonet socket plug and joint sleeve, and the tightening mouth of joint sleeve oral area after by external force deformation is fixed in the joint sleeve detonator, and detonator is stretched out by input port.

Described box body is cuboid or square or cylinder.

Characteristics of the present utility model are: owing to used the extension rope to make safety-type long delay detonating capsule can realize the highest 20 minutes defer time, the user selects the product of corresponding defer time according to actual conditions, and operating personnel ignite can have ample time behind the detonator of safety-type long delay detonating capsule and withdraw to safe distance during use.The utility model can be widely used in the controlled blasting and the engineering explosion in places such as down-hole, opencut and tunnel, the tunnel piercing of no biogas, mineral dust explosion danger.

Description of drawings

Below in conjunction with the embodiment accompanying drawing the utility model is described further.

Fig. 1 is a safety-type long delay detonating capsule front view;

Fig. 2 is the left side view of Fig. 1;

Fig. 3 is that the A-A of Fig. 2 is to cutaway view.

Among the figure: 1, label; 2, securing member; 3, inner chamber; 4, box body; 5, contiguous block; 6, blasting cap; 7, output port; 8, thermal insulation board; 9, thermal sleeve; 10, extension rope; 11, delay powder; 12, sealing ring; 13, detonator; 14, bayonet socket plug; 15, input port; 16, joint sleeve.

The specific embodiment

Embodiment 1 as shown in Figure 1 and Figure 2, on box body 4 surfaces label 1 is arranged, card has securing member 2 around box body 4, as shown in Figure 3,1 input port 15 and 1 output port 7 are arranged on box body 4, input port 15, output port 7 communicate with inner chamber 3, extension rope 10 is placed in the inner chamber 3, extension rope 10 1 ends are connected with blasting cap 6, extension rope 10 other ends are connected with detonator 13, delay powder 11 is arranged in the extension rope 10, and the delay powder 11 in the extension rope 10 is a kind of known delay powders, and it can buy in the manufacturer in Xi'an.

Embodiment 2 is substantially the same manner as Example 1, different is that extension rope 10 skins are coated with thermal sleeve 9, the external diameter and the length of thermal sleeve 9 internal diameters and length and extension rope 10 are consistent, extension rope 10 is coiled on the reference column that levels is fixed on inner chamber 3, and the thermal insulation board 8 that a thickness equates is put in the middle of the extension rope 10 of coiling and top and bottom.

Embodiment 3 is substantially the same manner as Example 1, different is that extension rope 10 1 ends and blasting cap 6 are pegged graft, the other end and joint sleeve 16 are pegged graft, the oral area of blasting cap 6 and joint sleeve 16 is respectively that it can make extension rope 10 two ends be fixed on respectively in blasting cap 6 and the joint sleeve 16 with the tightening mouth after the external force deformation.

Embodiment 4 is substantially the same manner as Example 1, and different is the inner chamber that blasting cap 6 is enclosed within contiguous block 5, and the blasting cap 6 that is enclosed within contiguous block 5 inner chambers is stretched out by output port 7, and contiguous block 5 afterbodys have step, but closely cooperates with groove clamping in the output port 7.

Embodiment 5 is substantially the same manner as Example 1, and different is, and detonator 13 1 ends are pegged graft by bayonet socket plug 14 and joint sleeve 16, and the tightening mouth of joint sleeve 16 oral areas after by external force deformation is fixed in the joint sleeve 16 detonator 13.Sealing ring 12 is enclosed within the fixedly tightening mouth position of detonator 13 of joint sleeve 16, and the draw-in groove of the profile of sealing ring 12 and size and input port 15 closely cooperates, and detonator 13 is stretched out by input port 15.

Embodiment 6 is substantially the same manner as Example 1, and different is that box body 4 is cuboid or square or cylinder.

Embodiment 7 be most preferred embodiment as shown in Figure 3,15, one output ports 7 of an input port are arranged in box body 4, and are communicated with the common box body 4 that constitutes with inner chamber 3.Extension rope 10 coils on the reference column that is fixed in the inner chamber 3, extension rope 10 1 ends and blasting cap 6 are pegged graft, plugging position is fixed on the blasting cap 6 extension rope 10 by the tightening mouth of external force deformation, contiguous block 5 is enclosed within on the blasting cap 6 and is stretched out by output port 7, and contiguous block 5 afterbodys have step and are connected in the output port 7; Extension rope 10 other ends and joint sleeve 16 are pegged graft, and plugging position is fixed on the joint sleeve 16 extension rope 10 by the tightening mouth of external force deformation.Detonator 13 is pegged graft by the bayonet socket plug 14 and joint sleeve 16 other ends, and joint sleeve 16 oral areas are fixed on detonator 13 and bayonet socket plug 14 in the joint sleeve 16 by the tightening mouth of external force deformation, and detonator 13 is stretched out by input port 15.Detonator is accepted primary power and will be impacted and quick-friedly reach the extension rope during work, and then the extension rope that ignites, and the extension rope burns between 5min～20min according to preset time, and extension rope burning to the terminal heat energy that produces is ignited blasting cap.

Its contiguous block 16 inner cavity sizes match with the appearance and size of blasting cap 6, and contiguous block 16 is enclosed within on the blasting cap 6 and is stretched out by output port 7, and contiguous block 16 afterbodys have step to closely cooperate with the groove clamping in the output port 7.Sealing ring 12 is enclosed within the fixedly tightening mouth position of detonator 13 of joint sleeve 16, and the draw-in groove of the profile of sealing ring 12 and size and input port 15 closely cooperates, and detonator 13 is stretched out by input port 15.Detonator 13 can be with known plastic detonating tube, high strength detonator or variable color detonator.

Operation principle of the present utility model is: ignite detonator with non-electric initiators, the shock wave of the detonator extension rope that ignites, the defer time effect of extension rope to set, when reaching the defer time of setting, ignite terminal blasting cap, after the blasting cap blast propagation of explosion Nonel detonator that clamps on the contiguous block is ignited, thereby detonated whole blasting network.

Claims

1, safety-type long delay detonating capsule, it is characterized in that: input port (15) and output port (7) are arranged on box body (4), input port (15), output port (7) communicate with inner chamber (3), extension rope (10) is placed in the inner chamber (3), extension rope (10) one ends are connected with blasting cap (6), extension rope (10) other end is connected with detonator (13), and delay powder (11) is arranged in the extension rope (10).

2, safety-type long delay detonating capsule according to claim 1, it is characterized in that: described extension rope (10) skin is coated with thermal sleeve (9), the coiling of extension rope (10) levels has a thermal insulation board (8) between dish extension rope (10) the upper, middle and lower layer well.

3, safety-type long delay detonating capsule according to claim 1, it is characterized in that: described extension rope (10) one ends and blasting cap (6) are pegged graft, the other end and joint sleeve (16) are pegged graft, the oral area of blasting cap (6) and joint sleeve (16) is respectively that it can make extension rope (10) two ends be fixed on respectively in blasting cap (6) and the joint sleeve (16) with the tightening mouth after the external force deformation.

4, safety-type long delay detonating capsule according to claim 1, it is characterized in that: described blasting cap (6) is enclosed within the inner chamber of contiguous block (5), and the blasting cap (6) that is enclosed within contiguous block (5) inner chamber is stretched out by output port (7).

5, safety-type long delay detonating capsule according to claim 1, it is characterized in that: described detonator (1 a 3) end is pegged graft by bayonet socket plug (14) and joint sleeve (16), the tightening mouth of joint sleeve (16) oral area after by external force deformation is fixed in the joint sleeve (16) detonator (13), and detonator (13) is stretched out by input port (15).

6, safety-type long delay detonating capsule according to claim 1 is characterized in that: described box body (4) is cuboid or square or cylinder.