CN112985200B - Detonator with same-end axial needling flame redundancy input - Google Patents
Detonator with same-end axial needling flame redundancy input Download PDFInfo
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- CN112985200B CN112985200B CN202110206611.1A CN202110206611A CN112985200B CN 112985200 B CN112985200 B CN 112985200B CN 202110206611 A CN202110206611 A CN 202110206611A CN 112985200 B CN112985200 B CN 112985200B
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- powder
- needling
- detonator
- ignition
- shell
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- 239000000843 powder Substances 0.000 claims abstract description 60
- 239000002360 explosive Substances 0.000 claims abstract description 45
- 230000000977 initiatory effect Effects 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 13
- 238000010304 firing Methods 0.000 claims description 7
- 238000004880 explosion Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 10
- 230000005284 excitation Effects 0.000 abstract description 8
- 239000003814 drug Substances 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process 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
- 239000013589 supplement Substances 0.000 description 1
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)
- Finger-Pressure Massage (AREA)
- Air Bags (AREA)
Abstract
The invention discloses a detonator with redundant input of coaxial needling flames, which comprises a tube shell, needling powder, a sealing ring, ignition powder, initiating explosive, high explosive and a reinforcing cap. The high explosive filling device comprises a shell, needling powder, ignition powder, initiating explosive and high explosive, wherein the needling powder is positioned at the head of the shell, the shell is in the shape of a second-order thin-wall round tube, a plurality of axial through holes with the same size are annularly and equally spaced at the step surface of the shell, the sealing ring is sleeved on the ignition powder to seal the axial through holes, the reinforcing cap is sleeved at the bottom of the high explosive, and the reinforcing cap is limited and fixed through the closing-in at the bottom end of a first tubular part. The invention adopts the structure of redundant input ignition of the needling flame at the axial direction of the input end, replaces the single ignition mode of the original detonator, has simple charging structure, is beneficial to medicament assembly, can adapt to needling input excitation and flame input excitation, is beneficial to simplifying and miniaturizing the structure of the inner cavity of the detonator, is beneficial to improving the reliability of the function of the detonator, and is beneficial to realizing the self-destruction and fire-insulating functions of the detonator.
Description
Technical Field
The invention belongs to the technology of initiating explosive devices, and particularly relates to a detonator with redundant input of coaxial needling flames.
Background
The explosive element is an important component of initiating explosive devices. With the improvement of fuze performance, improvement of functions and improvement of reliability requirements, the demands for variety and number of explosive elements are increasing. But from the perspective of flame-proof safety design, the smaller the number of explosive elements inside the fuse is, the better. It is therefore desirable that the fuse explosive element be capable of being singulated into composites.
CN2673862 discloses a bidirectional flame detonator, both ends of the detonator shell of which are provided with ignition holes, each end of the detonator can be used as a flame input end, and the requirements on no directivity are met. The detonator has bidirectional ignition capability, but as the primary explosive is arranged in the middle of the detonator and does not have high explosive charge, the main flow application requirement of initiating the subsequent high explosive charge explosion element is difficult to meet.
In general, the practical needled detonator or flame detonator at the present stage is almost of a single ignition structure, which is not beneficial to improving the reliability of the fuze action and is also not beneficial to realizing the design of the fuze self-destruction and fire insulation functions.
Disclosure of Invention
The invention aims to provide a detonator with redundant input of the same-end axial needling flame, which solves the problem of single firing mode of the traditional needling detonator and flame detonator.
The technical solution for realizing the purpose of the invention is as follows: the detonator with redundant input of the same-end axial needling flame comprises a tube shell, needling powder, a sealing ring, ignition powder, initiating powder, high explosive and a reinforcing cap. The high explosive filling device comprises a shell, needling powder, ignition powder, initiating explosive and high explosive, wherein the needling powder is positioned at the head of the shell, the shell is in the shape of a second-order thin-wall round tube, a plurality of axial through holes with the same size are annularly and equally spaced at the step surface of the shell, the sealing ring is sleeved on the ignition powder to seal the axial through holes, the reinforcing cap is sleeved at the bottom of the high explosive, and the reinforcing cap is limited and fixed through the closing-in at the bottom end of a first tubular part.
After the needling powder is punched by a firing pin or a firing pin of the fuze trigger device, the needling powder is punched to ignite the ignition powder, so that the initiating powder is detonated, the initiating powder is detonated to detonate the high explosive, and the detonator completes explosion output; the flame generated by the fuze ignition mechanism is transmitted to an axial through hole positioned on the tube shell, the sealing ring is ignited through the axial through hole to further ignite the ignition powder, the ignition powder detonates the initiating explosive, the initiating explosive detonates the high explosive, and the detonator completes explosion output; the two input modes are mutually backup and complementary and do not influence each other.
Compared with the prior art, the invention has the remarkable advantages that: the detonator adopts a redundant input mode of combining needling ignition and flame ignition at the input end, replaces the single ignition mode of the original detonator, has a simple charging structure, is beneficial to medicament assembly, can enhance the input excitation adaptability of the detonator, is beneficial to simplifying and miniaturizing the inner cavity structure of the detonator, is beneficial to improving the reliability of the action of the detonator, and is beneficial to realizing the self-destruction and fire-insulation functions of the detonator.
Drawings
FIG. 1 is a schematic diagram of the detonator of the present invention with redundant input of axial needling flames at the same end.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
As shown in fig. 1, the detonator with the same-end axial needling flame redundancy input comprises a tube shell 1, needling powder 2, a sealing ring 3, ignition powder 4, initiating explosive 5, high explosive 6 and a reinforcing cap 7. The shape of the pipe shell 1 is a second-order thin-wall circular pipe, the second-order thin-wall circular pipe comprises a first tubular part and a second tubular part, the first tubular part is large in diameter and is open at two ends, the second tubular part is small in diameter and is closed at the head, and a plurality of axial through holes with the same size are annularly and equally distributed at the step surfaces of the two tubular parts. The needling powder 2, the ignition powder 4, the initiating explosive 5 and the high explosive 6 are sequentially filled in the tube shell 1, wherein the needling powder 2 is positioned in the second tubular member, the ignition powder 4 is a second-order cylinder, the second-order cylinder comprises a first cylinder and a second cylinder, the diameter of the first cylinder is larger than that of the second cylinder, the second cylinder stretches into the second tubular member to be in contact with the needling powder 2, the first cylinder is positioned in the first tubular member of the tube shell 1 to be in contact with the initiating explosive 5, the sealing ring 3 is sleeved on the second cylinder, and the second cylinder is positioned between the step surface of the tube shell 1 and the second cylinder. The reinforcing cap 7 is sleeved at the bottom of the high explosive 6, is limited and fixed through the closing-in of the bottom end of the first tubular part, and is used for sealing the joint of the tube shell 1 and the reinforcing cap 7 through the sealing paint 8 after the closing-in of the bottom end of the first tubular part of the tube shell 1.
Further, the needling powder 2 is positioned in the second tubular member of the tube shell 1 and receives needling excitation input or impact excitation input, the ignition powder 4 is positioned at the step and receives flame excitation input, and the charging structures and respective input excitation characteristics of the needling powder 2 and the ignition powder 4 are not affected.
Further, the sealing ring 3 is annular, the outer diameter of the sealing ring is the same as the inner diameter of the first tubular part of the tube shell 1, and the sealing ring 3 seals the axial through hole at the step of the tube shell 1. The sealing ring 3 is made of flame sensitive materials, such as a nitro film or other flame sensitive structural materials, so that the completeness of the charging structure of the ignition powder 4 can be ensured, and the input of the ignition powder 4 by the needling powder 2 is not influenced.
The heads described in this invention are all left-hand positions in fig. 1 and the bottoms are all right-hand positions.
The detonator with redundant input of the same-end axial needling flame comprises the following working processes:
(1) The needling powder 2 is positioned at the head (weak part) of the tube shell 1, after the needling powder 2 is punched by a firing pin or firing pin of the fuze triggering device, the needling powder 2 is punched to ignite the ignition powder 4, so as to further detonate the initiating powder 5, the initiating powder 5 detonates the high explosive 6 again, and the detonator completes explosive output.
(2) The flame generated by the fire cap, the ignition head (tube) or the relay tube of the fuze ignition mechanism is transmitted to the axial through hole on the step surface of the tube shell 1, the sealing ring 3 is ignited through the axial through hole to further ignite the ignition powder 4, the ignition powder 4 detonates the initiating explosive 5, the initiating explosive 5 detonates the high explosive 6, and the detonator completes the explosive output.
The two input modes are mutually backup (supplement), do not affect each other, and are used in different orders.
The detonator with redundant input of the same-end axial needling flame combines the traditional needling ignition and flame ignition. Compared with the traditional needled detonator and flame detonator, the detonator with the same-end axial needled flame redundant input has two ignition modes of needling and flame, improves the input excitation adaptability of the detonator, and greatly reduces the possibility of fuzzing under extreme conditions.
Claims (4)
1. The detonator with the same-end axial needling flame redundancy input is characterized in that: comprises a tube shell (1), a needling powder (2), a sealing ring (3), an ignition powder (4), an initiating powder (5), a high explosive (6) and a reinforcing cap (7);
The shell (1) comprises a first tubular member and a second tubular member which are connected, wherein the first tubular member is large in diameter and is open at two ends, the second tubular member is small in diameter and is closed at the head, and a plurality of axial through holes with the same size are annularly distributed at the step surfaces of the two tubular members at equal intervals;
The high explosive device comprises a shell (1), a needling powder (2), an ignition powder (4), an initiating explosive (5) and an explosive (6), wherein the needling powder (2) is arranged at the head of the shell (1), the shell (1) is a second-order thin-wall round tube, a sealing ring (3) is sleeved on the ignition powder (4) to seal the axial through hole, a reinforcing cap (7) is sleeved at the bottom of the explosive (6), and the reinforcing cap is limited and fixed by closing in at the bottom end of a first tubular piece;
After the needling powder (2) is punched by a firing pin or a firing pin of a fuze trigger device, the needling powder (2) is punched to ignite the ignition powder (4), so that the initiating powder (5) is detonated, the initiating powder (5) is detonated to detonate the high explosive (6) again, and the detonator finishes explosion output; the flame generated by the fuze ignition mechanism is transmitted to an axial through hole positioned on the tube shell (1), the sealing ring (3) is ignited through the axial through hole so as to ignite the ignition powder (4), the ignition powder (4) detonates the initiating explosive (5) again, the initiating explosive (5) detonates the high explosive (6) again, and the detonator completes explosion output; the input end adopts a mode of combining needling ignition and flame ignition, and is mutually backed up and supplemented without mutual influence.
2. The detonator of claim 1 having redundant inputs of co-axial needling flames, wherein: the needling powder (2) is located in the second tubular member, the ignition powder (4) is a second-order cylinder, the second-order cylinder comprises a first cylinder and a second cylinder, the diameter of the first cylinder is larger than that of the second cylinder, the second cylinder stretches into the second tubular member to be in contact with the needling powder (2), the first cylinder is located in the first tubular member of the tube shell (1) to be in contact with the initiating powder (5), the sealing ring (3) is sleeved on the second cylinder, and the sealing ring is located between the step surface of the tube shell (1) and the first cylinder.
3. Detonator with redundant input of co-terminal axial needling flames according to claim 1 or 2, characterized in that: after the bottom end of the tube shell (1) is closed, the joint of the tube shell (1) and the reinforcing cap (7) is sealed by sealing paint (8).
4. Detonator with redundant input of co-terminal axial needling flames according to claim 1 or 2, characterized in that: the sealing ring (3) is made of flame sensitive materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110206611.1A CN112985200B (en) | 2021-02-24 | 2021-02-24 | Detonator with same-end axial needling flame redundancy input |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110206611.1A CN112985200B (en) | 2021-02-24 | 2021-02-24 | Detonator with same-end axial needling flame redundancy input |
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| Publication Number | Publication Date |
|---|---|
| CN112985200A CN112985200A (en) | 2021-06-18 |
| CN112985200B true CN112985200B (en) | 2024-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110206611.1A Active CN112985200B (en) | 2021-02-24 | 2021-02-24 | Detonator with same-end axial needling flame redundancy input |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5445077A (en) * | 1992-12-18 | 1995-08-29 | Giat Industries | Initiation device for a pyrotechnic system |
| US7574960B1 (en) * | 2005-11-29 | 2009-08-18 | The United States Of America As Represented By The Secretary Of The Navy | Ignition element |
| CN105564649A (en) * | 2016-01-28 | 2016-05-11 | 兰州空间技术物理研究所 | Fire work actuator applicable to environmental condition on lunar surface |
| CN109029163A (en) * | 2018-08-18 | 2018-12-18 | 南京理工大学 | A kind of miniaturization insensitiveness Nonel detonator |
| CN110715582A (en) * | 2019-11-07 | 2020-01-21 | 北京理工大学 | Explosive driving type high-temperature-resistant fire-work actuating device explosive charging sequence for deep space detector |
-
2021
- 2021-02-24 CN CN202110206611.1A patent/CN112985200B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5445077A (en) * | 1992-12-18 | 1995-08-29 | Giat Industries | Initiation device for a pyrotechnic system |
| US7574960B1 (en) * | 2005-11-29 | 2009-08-18 | The United States Of America As Represented By The Secretary Of The Navy | Ignition element |
| CN105564649A (en) * | 2016-01-28 | 2016-05-11 | 兰州空间技术物理研究所 | Fire work actuator applicable to environmental condition on lunar surface |
| CN109029163A (en) * | 2018-08-18 | 2018-12-18 | 南京理工大学 | A kind of miniaturization insensitiveness Nonel detonator |
| CN110715582A (en) * | 2019-11-07 | 2020-01-21 | 北京理工大学 | Explosive driving type high-temperature-resistant fire-work actuating device explosive charging sequence for deep space detector |
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| CN112985200A (en) | 2021-06-18 |
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