CN112985199A - Detonator with coaxial needle-punched flame composite input at same end - Google Patents
Detonator with coaxial needle-punched flame composite input at same end Download PDFInfo
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- CN112985199A CN112985199A CN202110206400.8A CN202110206400A CN112985199A CN 112985199 A CN112985199 A CN 112985199A CN 202110206400 A CN202110206400 A CN 202110206400A CN 112985199 A CN112985199 A CN 112985199A
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- powder
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- detonator
- flame
- acupuncture
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- 239000002131 composite material Substances 0.000 title claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 54
- 239000002360 explosive Substances 0.000 claims abstract description 40
- 238000001467 acupuncture Methods 0.000 claims abstract description 24
- 230000000977 initiatory effect Effects 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 9
- 238000004880 explosion Methods 0.000 claims description 7
- 238000010304 firing Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 2
- 208000012266 Needlestick injury Diseases 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 230000005284 excitation Effects 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012905 input function Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C19/00—Details of fuzes
- F42C19/08—Primers; Detonators
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Air Bags (AREA)
- Finger-Pressure Massage (AREA)
Abstract
The invention discloses a detonator with the same end and axial needling flame composite input, which comprises a tube shell, needling powder, a sealing ring, ignition powder, initiating powder, high explosive and a reinforcing cap. The tube head seals, and the bottom is open, and blind end inner wall center is opened has a recess, uses the recess to be the same eccentric through-hole of a plurality of size of annular equal interval distribution as the center, and acupuncture powder, initiating explosive, high explosive are filled in the tube in proper order, and acupuncture powder head stretches into the recess, and the ignition powder is the cylinder cover at acupuncture powder and initiating explosive head, and ignition powder head and sealing washer contact strengthen the cap and wrap up high explosive bottom, and it is spacing to close up through the tube. The invention adopts a composite structure of needle-prick ignition in the middle and flame ignition ring side at the input end, replaces the single ignition mode of the original detonator, realizes the redundant input of the needle-prick and the flame at the same end along the axial direction, can simultaneously adapt to the needle-prick input excitation and the flame input excitation, improves the reliability of the fuse action and realizes the fuse self-destruction and fire-stopping functions.
Description
Technical Field
The invention belongs to the technology of initiating explosive devices, and particularly relates to a detonator with the same end and axial needling flame composite input.
Background
The primer is an important component of initiating explosive devices. With the improvement of fuse performance, the improvement of functions and the improvement of reliability requirements, the demand for the variety and the number of explosion elements is increasing. However, from the viewpoint of explosion-proof safety design, the smaller the number of explosive elements in the fuze, the better the fuze. It is therefore desirable that the fuse explosion element be capable of being singulated into composites.
CN2673862 discloses a bidirectional flame detonator, in which ignition holes are arranged at both ends of a detonator shell, and each end of the detonator can be used as a flame input end, so that there is no directional requirement. Although the detonator has the bidirectional firing capability, the primary explosive is arranged in the middle of the detonator and no high explosive is charged, so that the main application requirement of initiating the subsequent high explosive charging explosive element is difficult to meet.
Generally, the acupuncture detonator or the flame detonator which is practical at the present stage is almost a single ignition structure, is not beneficial to improving the reliability of the fuse action and is also not beneficial to realizing the self-destruction and fire-insulating functional design of the fuse.
Disclosure of Invention
The invention aims to provide a detonator with the same end and axial needling flame composite input, which solves the problem that the traditional needling detonator and flame detonator have single ignition mode.
The technical solution for realizing the purpose of the invention is as follows: a detonator with coaxial needling flame composite input comprises a tube shell, needling powder, a sealing ring, ignition powder, initiating powder, high explosive and a reinforcing cap. The ignition tube comprises a tube shell, a plurality of ignition powder; the reinforcing cap wraps the bottom of the high explosive and is limited and fixed through the bottom closing-up of the tube shell.
After the acupuncture powder is stabbed by the firing pin or firing pin of the detonator triggering device, the acupuncture powder is stabbed and ignited to ignite the ignition powder, so that the initiation powder is detonated, the initiation powder detonates high explosive, and the detonator finishes explosion output; the flame generated by the fuze ignition mechanism is transmitted into the axial through hole of the tube shell, the sealing ring is ignited through the axial through hole, further, the ignition powder is ignited, the ignition powder then detonates the primary explosive, the primary explosive detonates the high explosive, and the detonator finishes the explosion output; the two input modes are mutually backup and supplementary and do not influence each other.
Compared with the prior art, the invention has the remarkable advantages that: (1) the invention adopts a combined mode of needle ignition and flame ignition at the input end to replace the single ignition mode of the original detonator, realizes the redundant input of needle ignition flame at the same end along the axial direction, can enhance the input excitation adaptability of the detonator, is beneficial to the simplification and miniaturization of the inner cavity structure of the detonator, improves the reliability of the action of the detonator and realizes the self-destruction and fire-stopping functions of the detonator.
(2) The invention has simple structure, is beneficial to processing and is convenient to install.
Drawings
FIG. 1 is a schematic structural diagram of a coaxial needle-punched flame composite input detonator of the invention.
Detailed Description
The present invention is described in further detail below with reference to the attached drawing figures.
Referring to fig. 1, the detonator with the same end and axial needling flame composite input comprises a tube shell 1, a needling powder 2, a sealing ring 3, an ignition powder 4, a primary explosive 5, a high explosive 6 and a reinforcing cap 7. The pipe shell 1 is characterized in that the head part is a closed end, the bottom part is an open end, a groove is formed in the center of the inner wall of the closed end to form a weak part, and a plurality of eccentric through holes with the same size are distributed on the closed end face at equal intervals in an annular mode by taking the groove as the center. Acupuncture powder 2, initiating explosive 5, high explosive 6 load in tube 1 in proper order, and acupuncture powder 2 heads stretch into the recess, initiating explosive 5 are the second order cylinder, including first cylinder and second cylinder, first cylindrical diameter is less than second cylinder diameter, forms the step face between the two, acupuncture powder 2 bottoms and first cylinder contact, ignition powder 4 is the cylinder, 4 covers of ignition powder are at acupuncture powder 2 and first cylindrical outer wall, 4 heads of ignition powder and 3 contacts of sealing washer, the eccentric through-hole of sealing washer 3 seal, it is spacing through the step face to ignite 4 bottoms. Strengthen 6 bottoms of cap 7 parcel high explosive, it is spacing fixed through 1 bottom binding off of tube, the bottom binding off back of tube 1, through the junction of 8 sealed tube 1 of sealing paint and enhancement cap 7.
The sealing ring 3 is made of flame sensitive material, such as nitro film or other flame sensitive structural material.
The primary explosive 5 is remote from the reinforcing cap 7 and does not contact the reinforcing cap 7.
The head described in the present invention is located at the left side in fig. 1, and the bottom is located at the right side.
The working process of the detonator with the same-end axial needling flame composite input comprises the following steps:
(1) the acupuncture powder 2 is located the head (weak part) of tube 1, and acupuncture powder 2 receives the firing pin or the firing pin of detonator trigger device to stab the back, and acupuncture powder 2 is pricked and is sent out, ignites ignition powder 4, and then detonates initiating explosive 5, and initiating explosive 5 detonates high explosive 6 again, and the detonator accomplishes the explosion output.
(2) The flame generated by a fire cap or an ignition head (tube) or a relay tube of the fuse ignition mechanism is transmitted into an axial through hole of the tube shell 1, the sealing ring 3 is ignited through the axial through hole, further, the ignition charge 4 is ignited, the ignition charge 4 then detonates the primary explosive 5, the primary explosive 5 detonates the high explosive 6, and the detonator finishes the explosive output.
The two input modes are mutually backup and supplementary, do not influence each other and are not used successively.
The detonator with the same-end axial needling flame composite input function combines the traditional needling ignition and the traditional flame ignition. Compared with the traditional acupuncture detonator and the traditional flame detonator, the acupuncture flame redundant input detonator with the same end simultaneously has two ignition modes of acupuncture and flame, improves the input excitation adaptability of the detonator, and greatly reduces the possibility of igniting misfires under extreme conditions.
Claims (4)
1. The utility model provides a detonator of compound input of same end axial acupuncture flame which characterized in that: comprises a tube shell (1), a needling powder (2), a sealing ring (3), an ignition powder (4), a primary explosive (5), a high explosive (6) and a reinforcing cap (7);
the ignition device is characterized in that the head of the tube shell (1) is a closed end, the bottom of the tube shell is an open end, a groove is formed in the center of the inner wall of the closed end to form a weak part, a plurality of eccentric through holes with the same size are distributed on the closed end face at equal intervals in an annular mode by taking the groove as the center, the acupuncture powder (2), the initiating powder (5) and the high explosive (6) are sequentially filled in the tube shell (1), the head of the acupuncture powder (2) extends into the groove, the ignition powder (4) is cylindrical, the ignition powder (4) is sleeved on the outer walls of the acupuncture powder (2) and the head of the initiating powder (5), the head of the ignition powder (4) is in contact with the sealing ring (3), the sealing ring (3) seals the eccentric through holes, and the; the reinforcing cap (7) wraps the bottom of the high explosive (6) and is limited and fixed through the bottom closing-up of the tube shell (1);
after the acupuncture powder (2) is stabbed by a firing pin or firing pin of the fuze trigger device, the acupuncture powder (2) is punctured and ignited, the ignition powder (4) is ignited, the primary powder (5) is further detonated, the primary powder (5) detonates high explosive (6), and the detonator finishes explosion output; the flame generated by the fuze ignition mechanism is transmitted into the axial through hole of the tube shell (1), the sealing ring (3) is ignited through the axial through hole, then the ignition powder (4) is ignited, the ignition powder (4) then detonates the initiating explosive (5), the initiating explosive (5) detonates the high explosive (6), and the detonator finishes the explosion output;
the two input modes are mutually backup and supplementary and do not influence each other.
2. The detonator of claim 1 having a coaxial needle-punched flame composite input, wherein: the ignition powder (5) is a second-order cylinder and comprises a first cylinder and a second cylinder, the diameter of the first cylinder is smaller than that of the second cylinder, a step surface is formed between the first cylinder and the second cylinder, the bottom of the acupuncture powder (2) is in contact with the first cylinder, the ignition powder (4) is sleeved on the outer walls of the acupuncture powder (2) and the first cylinder, and the bottom of the ignition powder (4) is limited through the step surface.
3. The detonator of claim 1 or 2 having a coaxial needle-stick flame composite input, wherein: after the bottom of the tube shell (1) is closed, the joint of the tube shell (1) and the reinforcing cap (7) is sealed through a sealing paint (8).
4. The coaxial needle-punched flame composite input detonator according to any one of claims 1 to 3, wherein: the sealing ring (3) is made of flame sensitive materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110206400.8A CN112985199B (en) | 2021-02-24 | 2021-02-24 | Detonator with same-end axial needling flame composite input |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110206400.8A CN112985199B (en) | 2021-02-24 | 2021-02-24 | Detonator with same-end axial needling flame composite input |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112985199A true CN112985199A (en) | 2021-06-18 |
| CN112985199B CN112985199B (en) | 2024-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110206400.8A Active CN112985199B (en) | 2021-02-24 | 2021-02-24 | Detonator with same-end axial needling flame composite input |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113390306A (en) * | 2021-06-24 | 2021-09-14 | 南京理工大学 | Fuse chamber internal ignition mechanism adopting detonator and space explosion suppression principle |
| CN113624078A (en) * | 2021-08-06 | 2021-11-09 | 南京理工大学 | Long-delay acupuncture explosion element with flush input end face for fuse |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6289813B1 (en) * | 1999-02-18 | 2001-09-18 | Livbag Snc | Electropyrotechnic igniter with enhanced ignition reliability |
| CN1847776A (en) * | 2005-04-11 | 2006-10-18 | 北京理工大学 | Heat resisting and pressure resisting safe electric detonator for oil well |
| CN106460489A (en) * | 2014-04-03 | 2017-02-22 | 欧文石油工具有限合伙公司 | Redundant firing system for wellbore tools |
| CN109029163A (en) * | 2018-08-18 | 2018-12-18 | 南京理工大学 | A kind of miniaturization insensitiveness Nonel detonator |
-
2021
- 2021-02-24 CN CN202110206400.8A patent/CN112985199B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6289813B1 (en) * | 1999-02-18 | 2001-09-18 | Livbag Snc | Electropyrotechnic igniter with enhanced ignition reliability |
| CN1847776A (en) * | 2005-04-11 | 2006-10-18 | 北京理工大学 | Heat resisting and pressure resisting safe electric detonator for oil well |
| CN106460489A (en) * | 2014-04-03 | 2017-02-22 | 欧文石油工具有限合伙公司 | Redundant firing system for wellbore tools |
| CN109029163A (en) * | 2018-08-18 | 2018-12-18 | 南京理工大学 | A kind of miniaturization insensitiveness Nonel detonator |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113390306A (en) * | 2021-06-24 | 2021-09-14 | 南京理工大学 | Fuse chamber internal ignition mechanism adopting detonator and space explosion suppression principle |
| CN113390306B (en) * | 2021-06-24 | 2022-05-20 | 南京理工大学 | Fuse bore ignition mechanism adopting detonator and space explosion-proof principle |
| CN113624078A (en) * | 2021-08-06 | 2021-11-09 | 南京理工大学 | Long-delay acupuncture explosion element with flush input end face for fuse |
| CN113624078B (en) * | 2021-08-06 | 2023-01-13 | 南京理工大学 | Long-delay acupuncture explosion element with flush input end face for fuze |
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| Publication number | Publication date |
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| CN112985199B (en) | 2024-04-05 |
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