CN113587749B - Safety ignition fuze adopting space explosion-proof principle - Google Patents
Safety ignition fuze adopting space explosion-proof principle Download PDFInfo
- Publication number
- CN113587749B CN113587749B CN202110792083.2A CN202110792083A CN113587749B CN 113587749 B CN113587749 B CN 113587749B CN 202110792083 A CN202110792083 A CN 202110792083A CN 113587749 B CN113587749 B CN 113587749B
- Authority
- CN
- China
- Prior art keywords
- detonator
- explosion
- firing pin
- safety
- needling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Air Bags (AREA)
- Fuses (AREA)
Abstract
The invention discloses a safe ignition fuse adopting a space explosion-proof principle, which is used for exchanging the positions of a firing pin and a spring-driven needling explosion component in a needling ignition mechanism of a traditional ignition fuse. Meanwhile, the firing pin serving as the excitation piece and the explosion-proof piece is fixed at the output end of the fuze, and the spring-driven needling explosion component is a moving piece and is arranged in the fuze center and far away from the output end. When the needling explosion assembly fires accidentally, its output energy is absorbed by the internal structure of the fuze as it is away from the output end, and is not transferred to the fuze output end. During normal firing, the recoil safety mechanism releases safety, the explosion element impacts the firing pin to explode under the action of the pre-compression spring, the firing pin structure is destroyed, high-temperature high-pressure gas is transmitted to the outer side of the firing pin, the powder is ignited, and the fuse outputs normally, so that the preset function is completed. The invention adopts the principle of space explosion, improves the safety during service treatment and emission, has simple structure and high reliability.
Description
Technical Field
The invention belongs to a fuze technology, and particularly relates to a safe ignition fuze adopting a space explosion-proof principle.
Background
The jamming bomb is used as a special bomb species, and the fuze of the jamming bomb does not need to meet the requirement of the standard of fuze safety design criterion. In the traditional structure, a firing pin is often used as a motion excitation piece, a sensitive acupuncture fire cap is fixed in an in-line mode to be used as an output explosion element, and no explosion-proof design exists. The drop impact during service treatment or the acceleration overload during firing may cause accidental firing of the acupuncture cap, which may further advance the assigned interference warhead, creating a certain risk and losing the ability to interfere with the target.
Disclosure of Invention
The invention aims to provide a safe ignition fuse adopting a space explosion-proof principle for the aerial ignition of an interference bomb, and the safety of a service processing stage and during the launching is effectively improved on the premise of simple structure and reliability guarantee.
The technical solution of the invention is realized: a safe ignition fuse adopting a space explosion-proof principle exchanges the positions of a firing pin and a spring-driven needling explosion component in a needling ignition mechanism of a traditional ignition fuse, so that the spring-driven needling explosion component is positioned in a fuse center and far away from a fuse output end, thereby realizing space explosion-proof.
The needling ignition mechanism comprises a firing pin, a detonator seat, a needling detonator and a detonator seat spring which are coaxially arranged, wherein the firing pin is arranged at the output end of the detonator and is limited and fixed through the detonator body, the detonator seat is arranged opposite to the firing pin and is spaced from the firing pin, the needling detonator is arranged in the detonator seat, and one end of the detonator seat spring extends into the detonator seat to provide movement thrust for the detonator seat.
Compared with the prior art, the invention has the remarkable advantages that: the principle of space explosion isolation is utilized, the positions of the firing pin and the needling explosion assembly in the traditional structure are exchanged, so that the needling detonator in the needling explosion assembly is positioned in the center of the mechanism and far away from the next-stage explosion element (such as a fire transfer tube), the firing pin is an excitation piece and an explosion isolation piece, and therefore, even if the needling detonator is accidentally fired and exploded at the assembly position, the next-stage explosion element cannot be detonated, and the safety of the detonator in the service processing stage and the launching process is improved.
Drawings
Fig. 1 is a schematic diagram of a local structure of a safety type warhead ignition fuse adopting a space explosion-proof principle.
Fig. 2 is a schematic diagram of a safety bullet ignition fuse structure adopting a space explosion-proof principle.
Fig. 3 is a schematic diagram of a squat safety mechanism of a safety warhead ignition fuse according to the invention using the principle of spatial explosion isolation.
Detailed Description
The present invention is described in further detail below.
In combination with fig. 1 and fig. 2, the safety ignition fuse adopting the space explosion-proof principle disclosed by the invention has the advantages that the positions of the firing pin 4 in the needling and igniting mechanism 2 of the traditional ignition fuse and the positions of the spring-driven needling explosion component are interchanged, so that the spring-driven needling explosion component is positioned in the fuse center and far away from the output end of the fuse, and thus, the space explosion-proof is realized.
The needling ignition mechanism 2 comprises a firing pin 4, a detonator seat 5, a needling detonator 6 and a detonator seat spring 7, wherein the firing pin 4 is arranged at the output end of the detonator, the detonator seat 5 is arranged opposite to the firing pin 4 and is spaced from the firing pin 4 by being fixed through point riveting or closing-up of the detonator body 1, the needling detonator 6 is arranged in the detonator seat 5, and one end of the detonator seat spring 7 extends into the detonator seat 5 to provide movement thrust for the detonator seat 5.
Wherein, firing pin 4 is as the flameproof, detonator seat spring 7 and firing pin 4 are located the both ends of detonator seat 5.
The spring-driven needling explosion assembly consists of a detonator seat 5, a needling detonator 6 and a detonator seat spring 7.
When the fuze is designed as a primer, the squat safety mechanism 3 is a linear motion squat safety mechanism, comprising an inertial cylinder 8, a safety ball 9, an inertial cylinder spring 10 and a washer 11, as shown in fig. 3.
When the fuze is designed as a warhead fuze, the spring-driven needle-punching explosive assembly is safeguarded by the linear motion recoil safety mechanism 3 along with the safety lever 13, safety ball 14, bracket 16 and safety lever spring 17.
With reference to fig. 1, the safety type bullet bottom ignition fuse adopting the space explosion-proof principle can be used for releasing safety in a recoil overload environment during bullet shooting, and is not used for releasing safety in a reliable accidental drop impact environment. In the needling ignition mechanism 2, a firing pin 4, a detonator 6, a detonator seat 5 and a detonator seat spring 7 are coaxially arranged. The firing pin 4 in the conventional needled firing mechanism is interchanged with the needled explosion assembly in position, the firing pin 4 is fixed at the fuze output end, and the needled detonator 6 is used as a moving member to be far away from the fuze output end. The firing pin 4 comprises a fixing seat and a needle point fixedly connected to the bottom surface of the fixing seat, the fixing seat is used for fixing the firing pin 4, the needle point is aligned to the needling explosion component and used for firing the needling detonator 6, and the blasting generated after the needling detonator 6 is fired by the firing pin 4 can destroy the structure of the firing pin 4. The detonator seat 5 is cylindrical, the top surface and the bottom surface of the detonator seat are respectively provided with a blind hole, a needle detonator 6 is placed in the blind hole positioned on the top surface, and one end of the detonator seat spring 7 extends into the blind hole positioned on the bottom surface.
During service handling, including in a drop environment of 1.5m or less, the recoil safety mechanism 3 does not release the safety of the safety ball 9, and movement of the detonator seat 5 and the needled detonator 6 thereon is limited by the safety ball 9.
In the in-bore firing phase, the safety ball 9 is released even if the inertial tube 8 is reclined to the bottom, and the safety ball 9 releases the detonator seat 5, the detonator seat 5 still sinking to its bottom, away from the firing pin, due to the presence of the recoil load. At this time, even if the needled detonator 6 accidentally fires and explodes, the detonator structure is not exploded, the firing pin 4 is not damaged, and the next-stage explosion element behind the firing pin 4 is not detonated.
When the projectile is launched out of the bore, the recoil load disappears, and the detonator seat spring 7 pushes the detonator seat 5 to move towards the firing pin 4, so that the needle-punched detonator 6 impacts the firing pin 4 and fires. The needle-punched detonator 6 fires and explodes, and the needle-punching structure is broken, so that high-temperature and high-pressure gas generated by the explosion is transmitted to the outside of the detonator, and the detonator completes the normal output function.
With reference to fig. 2, the safety bullet ignition fuse adopting the space explosion-proof principle can be used for releasing the safety in a recoil overload environment during the shot firing, and does not release the safety in a reliable accidental drop impact environment. The cover plate 12 is arranged in a stepped hole at the top of the fuze body 1 and is fixed through closing in. In the needling ignition mechanism 2, a firing pin 4, a detonator 6, a detonator seat 5 and a detonator seat spring 7 are coaxially arranged and placed in a through hole inside the detonator body 1. The detonator seat 5 and the detonator 6 are limited by the safety ball 14, and are restrained at the center of the detonator body 1. The firing pin 4 is arranged in a stepped hole above the booster shell 18 and is fixed by closing in. The safety rod 13, the bracket 16 and the safety rod spring 17 are positioned in a blind hole at one side of a central through hole of the fuse body 1, the safety rod 13 is limited by the safety ball 9, and the safety rod spring 17 in a compressed state is positioned in the bracket 16 to provide movement thrust for the safety rod 13. As shown in fig. 3, the rectilinear motion recoil safety mechanism 3 is located in a blind hole in the side (rear of the page) of the bumper 13.
During service handling, including in a drop environment of 1.5m or less, the recoil safety mechanism 3 does not release the safety of the safety ball 9, the safety lever 13 is in the assembled position, and movement of the detonator seat 5 and the needled detonator 6 thereon is limited by the safety ball 14.
In the in-bore firing phase, the inertial tube 8 squats off the safety ball 9, further releasing the safety lever 13, and the safety lever 13 remains in the assembled position without releasing the safety ball 14 due to the presence of the squat overload, so that the detonator holder 5 and detonator 6 do not move.
When the projectile is launched out of the bore, the recoil load disappears, and the safety lever 13 moves upwards under the action of the safety lever spring 17 to release the safety ball 14, and the safety ball 14 further releases the catheter holder 5. The detonator seat 5 and the detonator 6 are impacted to the firing pin 4 under the action of the detonator seat spring 7, and then fire is started. The needle-punched detonator 6 fires and explodes, thereby igniting the charge transfer 20.
The detonator 6 is changed from a common detonator to a needle-punched detonator with detonation output at the output end, and the transfer powder 20 is changed to the transfer powder.
The embodiments shown in fig. 1-3 only illustrate the core structure of the present invention and its ignition and spatial flame-proof principles, and do not relate to other related structures and principles of fuzes, such as redundant fuse structures and principles.
In the traditional fuze design, the needling explosive element is close to the next-stage explosive element, and if the needling explosive element is accidentally ignited, the energy cannot be blocked from being transmitted to the next stage. Therefore, an explosion-proof mechanism is added in the fuze, so that the fuze is more complex in structure, larger in overall size, difficult to meet the requirement of miniaturization of the fuze and difficult to ensure high reliability. The smart structure of the invention can realize the functions at the same time and effectively avoid the problems.
Claims (1)
1. A safe ignition fuse adopting a space explosion-proof principle is characterized in that: the device is suitable for an interference bomb, and the positions of a firing pin in a needling and firing mechanism (2) of a traditional ignition detonator and a spring-driven needling and explosion assembly are interchanged, so that the spring-driven needling and explosion assembly is positioned in a detonator center and far away from a detonator output end, and the firing pin is an excitation piece and an explosion-proof piece, so that even if the needling detonator is accidentally fired and exploded at an assembly position, a next-stage explosion element cannot be detonated, thereby realizing space explosion isolation and improving the safety of a detonator service processing stage and during firing;
the needling ignition mechanism (2) comprises a firing pin (4), a detonator seat (5), a needling detonator (6) and a detonator seat spring (7) which are coaxially arranged, the firing pin (4) is arranged at the output end of the detonator and is limited and fixed through the detonator body (1), the detonator seat (5) is arranged opposite to the firing pin (4) and is spaced from the firing pin (4), the needling detonator (6) is arranged in the detonator seat (5), and one end of the detonator seat spring (7) extends into the detonator seat (5) to provide movement thrust for the detonator seat (5);
the detonator seat spring (7) and the firing pin (4) are positioned at two ends of the detonator seat (5);
the safety ignition fuse adopting the principle of spaced explosion can release the safety in a recoil overload environment when the projectile is launched, but does not release the safety in a reliable accidental falling impact environment;
in the service treatment process, when the service treatment process comprises a falling environment with the falling height below 1.5m, the squatting safety mechanism (3) cannot release the safety of the safety ball (9), and the movement of the detonator seat (5) and the needled detonator (6) on the detonator seat is limited by the safety ball (9);
in the in-bore launching stage, even if the inertial cylinder (8) is sat back to the bottom to release the safety ball (9), and the safety ball (9) also releases the detonator seat (5), the detonator seat (5) still sinks to the bottom of the hole and is far away from the firing pin due to the existence of the recoil overload; at the moment, even if the needle-punched detonator 6 accidentally fires and explodes, the detonator structure cannot be exploded, the firing pin (4) cannot be damaged, and the next-stage explosion element behind the firing pin (4) cannot be detonated;
when the projectile is launched out of the bore, the recoil overload disappears, and the detonator seat spring (7) pushes the detonator seat (5) to move towards the firing pin (4) so that the needle-punched detonator (6) impacts the firing pin (4) to fire; the needle-punched detonator (6) fires and explodes, and the needle-punching structure is broken, so that high-temperature and high-pressure gas generated by the explosion is transmitted to the outside of the detonator, and the detonator completes the normal output function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110792083.2A CN113587749B (en) | 2021-07-13 | 2021-07-13 | Safety ignition fuze adopting space explosion-proof principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110792083.2A CN113587749B (en) | 2021-07-13 | 2021-07-13 | Safety ignition fuze adopting space explosion-proof principle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113587749A CN113587749A (en) | 2021-11-02 |
| CN113587749B true CN113587749B (en) | 2023-05-30 |
Family
ID=78247276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110792083.2A Active CN113587749B (en) | 2021-07-13 | 2021-07-13 | Safety ignition fuze adopting space explosion-proof principle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113587749B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114739243B (en) * | 2022-03-28 | 2023-08-18 | 南京理工大学 | Fuse magnetic ball holding core recoil safety mechanism |
| CN115773698B (en) * | 2022-12-01 | 2023-08-04 | 浙江省军工集团股份有限公司 | Multifunctional cabin opening mechanism for rocket |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2228514C2 (en) * | 2001-08-07 | 2004-05-10 | Российский федеральный ядерный центр - Всероссийский научно-исследовательский институт технической физики им. акад. Е.И. Забабахина | Fuse |
| DE10358555A1 (en) * | 2003-12-15 | 2005-07-14 | Diehl Bgt Defence Gmbh & Co. Kg | Detonator-safe fuse for barrel weapon ammunition comprises a detonator connected to a firing pin piece, and a centrifugal safety device that holds the detonator in a safety position a defined distance from a cartridge fuse |
| KR101879046B1 (en) * | 2016-10-04 | 2018-07-20 | 주식회사 풍산에프앤에스 | Concussion fuse that has armoring retarder which prevents misfiring of firing pin |
| CN109612351A (en) * | 2018-11-07 | 2019-04-12 | 航宇救生装备有限公司 | A kind of delay firing lock using low overload |
| CN109556468B (en) * | 2018-12-03 | 2020-11-20 | 南京理工大学 | Large-caliber smoothbore explosive cartridge warhead mechanical trigger fuse |
| CN112525021B (en) * | 2020-08-17 | 2024-06-21 | 西安机电信息技术研究所 | Small-size in-bore environment sensitive mechanism |
-
2021
- 2021-07-13 CN CN202110792083.2A patent/CN113587749B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113587749A (en) | 2021-11-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112066826B (en) | Mechanical trigger fuse for small-caliber rotary shell warhead | |
| CN113587749B (en) | Safety ignition fuze adopting space explosion-proof principle | |
| CN109506527B (en) | Electromechanical time fuse for antiaircraft gun hail suppression and rain enhancement bomb | |
| KR101543615B1 (en) | Grenade mechanism | |
| CN113405412B (en) | Safety large-diameter explosive cartridge warhead mechanical trigger fuse | |
| US9562755B2 (en) | Safe and arm mechanisms and methods for explosive devices | |
| RU2413176C1 (en) | Safety-and-arming fuse mechanism | |
| US6244184B1 (en) | Fuze for submunition grenade | |
| CN113916071A (en) | Pressed artillery grenade small-mouth screw warhead mechanical trigger fuse capable of realizing redundant ignition | |
| US7055436B2 (en) | Shell fuse | |
| US4047484A (en) | Fuze with bimetallic spring delay module | |
| US7168367B2 (en) | Submunition fuze | |
| US3107618A (en) | De-arming device | |
| US4421033A (en) | Exercise projectile | |
| US6050195A (en) | Self neutralizing fuze | |
| KR101879046B1 (en) | Concussion fuse that has armoring retarder which prevents misfiring of firing pin | |
| US6257145B1 (en) | Pyrotechnical impact detonator | |
| WO2004065891A3 (en) | Safety system for the ignition chain of a projectile fuze | |
| CN113587748B (en) | High-reliability artillery artificial hail-suppression rain-enhancement bomb time fuse | |
| US3636879A (en) | Airburst and inertia impact fuze assembly for munitions | |
| CN114279279B (en) | Medium-and-large-caliber line bore artillery grenade trigger fuze system with good ballistic safety | |
| KR20130027172A (en) | Pyrotechnic self-destruct device of sub-munition | |
| CN114111470B (en) | Mechanical trigger fuse for preventing bullet of large and medium caliber rotating cannonball from ballistic explosion | |
| RU91158U1 (en) | HEAD BLASTER | |
| CN115823971A (en) | Patrol missile electromechanical triggering fuse |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |