CN113494871A - Grenade fuse with switchable delay time - Google Patents
Grenade fuse with switchable delay time Download PDFInfo
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- CN113494871A CN113494871A CN202110832068.6A CN202110832068A CN113494871A CN 113494871 A CN113494871 A CN 113494871A CN 202110832068 A CN202110832068 A CN 202110832068A CN 113494871 A CN113494871 A CN 113494871A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C14/00—Mechanical fuzes characterised by the ammunition class or type
- F42C14/02—Mechanical fuzes characterised by the ammunition class or type for hand grenades
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Abstract
The invention discloses a grenade fuse with switchable delay time, which comprises a fuse base body and a safety handle rotationally connected to the fuse base body, wherein a firing mechanism, a redundant safety mechanism and a delay switching mechanism are arranged on the fuse base body; the delay time of the grenade fuse is selected through the delay switching mechanism, and the redundant safety mechanism and the delay switching mechanism are ignited through the firing mechanism; the redundancy safety mechanism comprises an explosion-proof assembly, a hand-out safety assembly and a delay safety assembly, the explosion-proof assembly isolates the delay switching mechanism from main-mounted medicament in the grenade, and the explosion-proof assembly carries out redundancy safety through the hand-out safety assembly and the delay safety assembly. The grenade provided by the invention has the advantages of simple structure, reasonable design, convenience in implementation, capability of being effectively applied to the grenade, better matching performance with the overall function of the grenade, great improvement on the safety and tactical flexibility of the grenade, good use effect and convenience in popularization and use.
Description
Technical Field
The invention belongs to the technical field of grenades, and particularly relates to a grenade fuse with switchable delay time.
Background
The grenade is used as a single-soldier carrying throwing ammunition weapon, is different from a conventional ammunition weapon, has no launching environmental force and no trajectory environmental force, has complex operation environment for soldiers, and can only finish the release of fuze insurance by the operation of soldiers. Therefore, the fuse has to guarantee service and use safety, and simultaneously, the convenience of operation and tactical flexibility of soldiers during use are considered. Traditional grenade fuze adopts the powder delay tube to delay and fire, but because the reliability of the powder delay tube is less than 100%, the grenade can have early explosion and instantaneous explosion accidents in the training and use of troops, and the use safety of troops officers and soldiers can not be ensured.
In addition, the grenade fuze in the prior art adopts a single fixed delay mode, and in the actual use process, the combat flexibility is poor aiming at targets with different distances. Especially for the hand-throwing type anti-riot bomb, when the device is used in a close range, the treatment target has longer response time, and the device is easy to pick up the target and throw reversely, thereby causing injury to people in our part. Therefore, there is an urgent need to develop a grenade fuse which is highly safe and can switch the delay time according to the tactical purpose.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a grenade fuse with switchable delay time, aiming at the defects in the prior art, the grenade fuse is simple in structure, reasonable in design, convenient to implement, capable of being effectively applied to grenades, good in matching performance with the overall function of the grenade, capable of greatly improving the safety and tactical flexibility of the grenade, good in using effect and convenient to popularize and use.
In order to solve the technical problems, the invention adopts the technical scheme that: a grenade fuse with switchable delay time comprises a fuse base body and a safety handle which is rotatably connected to the fuse base body, wherein a firing mechanism, a redundant safety mechanism and a delay switching mechanism are arranged on the fuse base body; the delay time of the grenade fuse is selected through the delay switching mechanism, and the redundant safety mechanism and the delay switching mechanism are ignited through the firing ignition mechanism; the redundant safety mechanism comprises an explosion-proof assembly, a hand-out safety assembly and a delay safety assembly, the explosion-proof assembly isolates the delay switching mechanism and a main medicament in the grenade, and the explosion-proof assembly carries out redundant safety through the hand-out safety assembly and the delay safety assembly.
The grenade fuse with switchable delay time comprises a firing mechanism, a firing assembly, a firing locking assembly and a safety catch, wherein the firing mechanism comprises a fire cap and a blocking spittoon which are arranged below a safety catch, and the firing assembly is used for firing the fire cap and the firing locking assembly is used for locking the safety catch; the firing assembly comprises a turning plate and a hammer arranged on the turning plate, and the firing locking assembly comprises a safety pin, a cotter pin and pull rings connected with the safety pin and the cotter pin.
The grenade fuse with switchable delay time comprises a delay explosive seat and a screw sleeve, wherein the delay explosive seat is positioned in a fuse base body, the screw sleeve is in threaded connection with the fuse base body, a first delay channel and a second delay channel are arranged in the delay explosive seat in parallel, and an output detonator is positioned below the first delay channel and the second delay channel; the delay device is characterized in that a first delay explosive body is arranged in the first delay channel, a second delay explosive body is arranged in the second delay channel, a rotatable fixing pin is arranged in the threaded sleeve, one end of the fixing pin is located above the second delay channel and is provided with an ignition hole which can be communicated with the second delay channel, a mode selection switch is arranged at the other end of the fixing pin, a lock pin rod is arranged on the mode selection switch, and a lock pin spring is sleeved on the lock pin rod.
In the grenade fuse with switchable delay time, the setting pin is provided with a stop pin which is axially perpendicular to the setting pin.
In the grenade fuse with switchable delay time, the delay time of the first delay powder body is 3.5s, and the delay time of the second delay powder body is 1.8-2 s.
Foretell changeable grenade detonator of postpone time, the flame proof subassembly is including keeping off the dish, it has carousel and spacing steel ball to embed on the fender dish, be provided with first biography explosion passageway and spacing hole on the carousel to and for the carousel provide rotating force's torsional spring and be used for with spacing steel ball matched with concave part, fender dish axis department is provided with the second biography explosion passageway that is located the carousel below.
The grenade fuse with switchable delay time is characterized in that the turntable is rotatably connected to the blocking disc through the rotating shaft, and the torsion spring is mounted on the rotating shaft.
Foretell changeable grenade fuse of delay time, go out hand insurance subassembly and include the stand pipe, be provided with the bumper bar that inserts in the spacing hole and the solution spring of cover on the bumper bar in the stand pipe.
Foretell grenade fuze that delay time is changeable, delay insurance subassembly includes the pin pulling pipe, be provided with in the pin pulling pipe and be used for blockking spacing steel ball pull out the pin pole and establish the pin pulling spring on the pin pulling pole to and be located the pin pulling powder of pin pulling pole top.
Compared with the prior art, the invention has the following advantages:
1. the grenade fuse is integrally designed based on the system engineering and modular design ideas, and has the advantages of simple structure, reasonable design and convenience in implementation.
2. The invention designs the redundant safety mechanism of the hand-out safety component and the delay safety component, and improves the use safety of the grenade.
3. The invention designs the delay switching mechanism, can switch delay time aiming at targets with different distances, and greatly improves tactical flexibility.
4. The grenade provided by the invention can be effectively applied to the grenade, has better matching performance with the integral function of the grenade, is safe and reliable, has a good use effect, and is convenient to popularize and use.
In conclusion, the grenade has the advantages of simple structure, reasonable design and good use effect, is convenient to realize, can be effectively applied to the grenade, has better matching performance with the overall function of the grenade, greatly improves the safety and tactical flexibility of the grenade, and is convenient to popularize and use.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of a firing mechanism of the present invention;
FIG. 3 is a schematic structural diagram of the delay switching mechanism according to the present invention;
FIG. 4 is a cross-sectional view of the delay switching mechanism of the present invention;
FIG. 5 is a schematic structural diagram of a redundant safety mechanism of the present invention;
FIG. 6 is a cross-sectional view of the redundant safety mechanism of the present invention;
FIG. 7 is a schematic structural diagram of the flameproof assembly of the present invention.
Description of reference numerals:
1-fuse base; 2-a safety handle; 3-firing the firing mechanism;
3-1-fire cap; 3-2-blocking the spittoon; 3-turning over the board;
3-4-hammer; 3-5-safety pin; 3-6-cotter pin;
3-7-a pull ring; 4-delay switching mechanism; 4-1-delay explosive seat;
4-2-thread insert; 4-3 — a first latency channel; 4-4 — second delay channel;
4-5-output detonator; 4-6-first delay powder body; 4-7-the second delay powder body;
4-8-installing and fixing pin; 4-9-ignition holes; 4-10 — mode select switch;
4-11-detent lever; 4-12-latch springs; 4-13-stop pin;
5, an explosion-proof component; 5-1-a catch tray; 5-2-rotating disc;
5-3-limiting steel balls; 5-4-a first explosion transfer channel; 5-limiting holes;
5-6-torsion spring; 5-7-concave; 5-8-a second booster channel;
5-9-a rotating shaft; 6-a hand-out safety component; 6-1-a guide tube;
6-2-bumper; 6-3-release the protection spring; 7-a delay insurance component;
7-1-pulling the pin tube; 7-2-pulling the pin rod; 7-3-pulling pin spring;
7-4-pulling the powder.
Detailed Description
As shown in fig. 1 to 7, the grenade fuse with switchable delay time of the invention comprises a fuse base body 1 and a safety handle 2 which is rotatably connected on the fuse base body 1, wherein the fuse base body 1 is provided with a firing mechanism 3, a redundant safety mechanism and a delay switching mechanism 4; the delay time of the grenade fuse is selected through the delay switching mechanism 4, and the redundant safety mechanism and the delay switching mechanism 4 are ignited through the firing ignition mechanism 3; redundant insurance mechanism includes flame proof subassembly 5, goes out hand insurance subassembly 6 and delay insurance subassembly 7, flame proof subassembly 5 keeps apart the main explosive of holding in delay switching mechanism 4 and the grenade, just flame proof subassembly 5 carries out redundant insurance through going out hand insurance subassembly 6 and delay insurance subassembly 7.
During specific implementation, before the grenade is thrown, a long delay mode or a short delay mode is selected through the delay switching mechanism 4 according to task requirements, the delay switching mechanism 4 respectively aims at two combat modes of long delay and short delay, when the short delay mode is selected, delay ignition time is short, and the requirement of rapid inrush acousto-optic suppression combat can be met; when the long delay mode is selected, the delay time is longer, and the dispersion requirement of a relatively long-distance troubled colony can be met.
In the embodiment, as shown in fig. 2, the firing and firing mechanism 3 comprises a fire cap 3-1 and a blocking cup 3-2 which are arranged below the safety handle 2, a firing assembly for firing the fire cap 3-1 and a firing locking assembly for locking the safety handle 2; the firing assembly comprises a turning plate 3-3 and a hammer 3-4 arranged on the turning plate 3-3, and the firing locking assembly comprises a safety pin 3-5, a cotter pin 3-6 and a pull ring 3-7 which are connected with the safety pin 3-5 and the cotter pin 3-6.
When the safety device is in service, the safety handle 2 is locked by the safety pin 3-5, and the safety handle 2 presses the turning plate 3-3 and the hammer 3-4; when the pull ring 3-7 pulls the safety pin 3-5 to be pulled out for throwing, the safety handle 2 is separated from the projectile body, the limitation on the turning plate 3-3 and the hammer 3-4 is removed, the hammer 3-4 overturns to impact the fire cap 3-1, the fire cap 3-1 fires and downwards ignites the redundant safety mechanism and the delay switching mechanism 4.
In this embodiment, as shown in fig. 3 to 4, the delay switching mechanism 4 includes a delay explosive seat 4-1 located in the fuse base body 1 and a screw sleeve 4-2 screwed on the fuse base body 1, a first delay passage 4-3 and a second delay passage 4-4 are arranged in the delay explosive seat 4-1 in parallel, and an output detonator 4-5 located below the first delay passage 4-3 and the second delay passage 4-4; the delay fuse comprises a first delay channel 4-3, a first delay explosive body 4-6, a second delay explosive body 4-7, a rotatable installing pin 4-8, a mode selection switch 4-10, a locking pin rod 4-11 and a locking pin spring 4-12, wherein the first delay channel 4-3 is internally provided with the first delay explosive body, the second delay channel 4-4 is internally provided with the second delay explosive body 4-7, the threaded sleeve 4-2 is internally provided with the rotatable installing pin 4-8, one end of the installing pin 4-8 is positioned above the second delay channel 4-4 and is provided with an ignition hole 4-9 which can be communicated with the second delay channel 4-4, the other end of the installing pin 4-8 is provided with the mode selection switch 4-10, and the mode selection switch 4-10 is provided with the locking pin rod 4-11 and the locking pin rod 4-11 is sleeved with the locking pin spring 4-12.
In this embodiment, the fixing pin 4-8 is provided with a stop pin 4-13 axially perpendicular to the fixing pin 4-8.
In this embodiment, the delay time of the first delay explosive body 4-6 is 3.5s, and the delay time of the second delay explosive body 4-7 is 1.8 s-2 s.
In specific implementation, the setting pin 4-8 is limited by the stop pin 4-13, is connected with the fuse base body 1 through the screw sleeve 4-2, and controls the on-off state of the second delay channel 4-4 through the ignition hole 4-9 to realize delay time setting, the default state of the mode selection switch is a long delay (L) mode, at the moment, the ignition hole 4-9 of the setting pin 4-8 and the second delay channel 4-4 are in a 90-degree dislocation state, the ignition flame output by the fire cap 3-1 can only be input from the first delay channel 4-3, the second delay channel 4-4 is blocked, at the moment, the first delay explosive body 4-6 of 3.5s is ignited, and the time from ignition to detonator output 4-5 is 3.5 s; when the fixing pin 4-8 is rotated by 90 degrees and is in a short delay (S) mode, the ignition hole 4-9 on the fixing pin 4-8 is communicated with the second delay channel 4-4, the ignition flame output by the fire cap 3-1 simultaneously ignites the first delay explosive body 4-6 of 3.5S and the second delay explosive body 4-7 of 1.8S-2S from the first delay channel 4-3 and the second delay channel 4-4, and the output detonator 4-5 is detonated after 1.8S-2S.
In the embodiment, as shown in fig. 5 to 7, the explosion-proof assembly 5 comprises a baffle disc 5-1, a rotary disc 5-2 and a limiting steel ball 5-3 are embedded in the baffle disc 5-1, a first explosion transmission channel 5-4 and a limiting hole 5-5 are arranged on the rotary disc 5-2, a torsion spring 5-6 for providing rotation power for the rotary disc 5-2 and a concave part 5-7 for matching with the limiting steel ball 5-3 are arranged on the rotary disc 5-2, and a second explosion transmission channel 5-8 located below the rotary disc 5-2 is arranged at the center shaft of the baffle disc 5-1.
In this embodiment, the rotating disc 5-2 is rotatably connected to the blocking disc 5-1 through a rotating shaft 5-9, and the torsion spring 5-6 is mounted on the rotating shaft 5-9.
In this embodiment, as shown in fig. 6, the hand-out safety assembly 6 includes a guide tube 6-1, and a safety rod 6-2 inserted into the limiting hole 5-5 and a release spring 6-3 sleeved on the safety rod 6-2 are disposed in the guide tube 6-1.
In this embodiment, as shown in fig. 6, the delay safety component 7 includes a pin pulling tube 7-1, a pin pulling rod 7-2 for blocking the limiting steel ball 5-3, a pin pulling spring 7-3 sleeved on the pin pulling rod 7-2, and pin pulling powder 7-4 located above the pin pulling rod 7-2 are disposed in the pin pulling tube 7-1.
When the explosion-proof component 5 is in a service state, the hand-out safety component 6 and the delay safety component 7 are locked to limit rotation, main medicine in the grenade is isolated, safety in service processing is guaranteed, and after the hand-out safety component 6 and the delay safety component 7 are relieved of safety, the rotary disc 5-2 rotates under the action of the torsion spring 5-6, so that the first explosion transmission channel 5-4 is communicated with the second explosion transmission channel 5-8, and a fuse is in a to-be-issued state; the hand-out safety assembly 6 is pressed by the safety handle 2 through the plugging spittoon 3-2 in a service state; when the grenade throws out the hand, the safety handle 2 is bounced off, and meanwhile the safety rod 6-2 moves upwards under the driving of the release spring 6-3 to release the locking of the rotary disc 5-2; in order to prevent the grenade from being early fried after the grenade is ejected, a delay insurance component 7 is arranged, a pin pulling rod 7-2 limits the displacement of a limiting steel ball 5-3 in a service state, and the limiting steel ball 5-3 limits the rotation of a turntable 5-2 to ensure that the turntable is in an explosion-proof state; after the hand grenade throws out the hand, the pin pulling gunpowder 7-4 at the upper end of the pin pulling pipe 7-1 is ignited by the fire cap 3-1, delay of about 0.5s is realized, after the delay is finished, the pin pulling rod 7-2 moves upwards under the action of the pin pulling spring 7-3 to remove the limitation on the limiting steel ball 5-3, further the locking on the rotary disc 5-2 is removed, and the rotary disc 5-2 enables the first explosion transfer channel 5-4 to be communicated with the second explosion transfer channel 5-8 under the action of the torsion spring 5-6.
When the invention is used, the bullet body and the safety handle 2 are held tightly, a long delay mode or a short delay mode is selected through the mode selection switch 4-10 according to the tactical purpose, the pull ring 3-7 is rotated anticlockwise and pulled out, the safety pin 3-5 is pulled out, and the cotter pin 3-6 is taken out; after throwing, the safety handle 2 is separated from the projectile body, the limit of the safety handle 2 on the turning plate 3-3 and the hammer 3-4 is removed, the hammer 3-4 impacts the fire cap 3-1, the fire cap 3-1 fires and downwards ignites gunpowder in the redundant safety mechanism and the delay switching mechanism 4, the starting safety component 6 removes the locking of the explosion-proof component 5, the delay safety component 7 also removes the locking of the explosion-proof component 5 after about 0.5s of delay, and at the moment, the rotary disc 5-2 in the explosion-proof component 5 rotates under the action of the torsion spring 5-6, so that the first explosion transfer channel 5-4 is communicated with the second explosion transfer channel 5-8, and the detonator is in a state to be fired. When the mode selection switch 4-10 selects the long-delay mode, the fire cap 3-1 ignites the first delay explosive body 4-6 for 3.5s and detonates the output detonator 4-5, so as to detonate the main explosive in the grenade; when the mode selection switch 4-10 selects the short delay mode, the fire cap simultaneously ignites the first delay explosive 4-6 of 3.5s and the second delay explosive 4-7 of 1.8-2 s, and the output detonator 4-5 is detonated after 1.8-2 s of delay, so that the main explosive in the grenade is detonated.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (9)
1. A grenade fuse with switchable delay time comprises a fuse base body (1) and a safety handle (2) rotatably connected to the fuse base body (1), and is characterized in that: the fuse base body (1) is provided with a firing mechanism (3), a redundant safety mechanism and a delay switching mechanism (4); the delay time of the grenade fuse is selected through the delay switching mechanism (4), and the redundant safety mechanism and the delay switching mechanism (4) are ignited through the firing ignition mechanism (3); redundant insurance mechanism includes flame proof subassembly (5), goes out hand insurance subassembly (6) and delay insurance subassembly (7), flame proof subassembly (5) are kept apart the main equipment medicament in delay switching mechanism (4) and the grenade, just flame proof subassembly (5) carry out redundant insurance through going out hand insurance subassembly (6) and delay insurance subassembly (7).
2. A grenade fuse with switchable delay time according to claim 1, characterised in that: the firing and firing mechanism (3) comprises a fire cap (3-1) and a blocking cup (3-2) which are arranged below the safety handle (2), a firing assembly for firing the fire cap (3-1) and a firing locking assembly for locking the safety handle (2); the firing assembly comprises a turning plate (3-3) and a hammer (3-4) arranged on the turning plate (3-3), and the firing locking assembly comprises a safety pin (3-5), a cotter pin (3-6) and pull rings (3-7) which are connected with the safety pin (3-5) and the cotter pin (3-6).
3. A grenade fuse with switchable delay time according to claim 1, characterised in that: the delay switching mechanism (4) comprises a delay explosive seat (4-1) positioned in the fuse base body (1) and a screw sleeve (4-2) in threaded connection with the fuse base body (1), a first delay channel (4-3), a second delay channel (4-4) and an output detonator (4-5) positioned below the first delay channel (4-3) and the second delay channel (4-4) are arranged in the delay explosive seat (4-1) in parallel; a first delay fire powder body (4-6) is arranged in the first delay passage (4-3), a second delay fire powder body (4-7) is arranged in the second delay passage (4-4), a rotatable fixing pin (4-8) is arranged in the screw sleeve (4-2), one end of the fixing pin (4-8) is positioned above the second delay channel (4-4), and is provided with an ignition hole (4-9) which can be communicated with the second delay passage (4-4), the other end of the fixing pin (4-8) is provided with a mode selection switch (4-10), and the mode selection switch (4-10) is provided with a lock pin rod (4-11), and a lock pin spring (4-12) is sleeved on the lock pin rod (4-11).
4. A grenade fuse with switchable delay time according to claim 3, characterised in that: and the fixing pin (4-8) is provided with a stop pin (4-13) which is axially vertical to the fixing pin (4-8).
5. A grenade fuse with switchable delay time according to claim 3, characterised in that: the delay time of the first delay powder body (4-6) is 3.5s, and the delay time of the second delay powder body (4-7) is 1.8 s-2 s.
6. A grenade fuse with switchable delay time according to claim 1, characterised in that: the explosion-proof component (5) comprises a baffle disc (5-1), a rotary disc (5-2) and a limiting steel ball (5-3) are embedded in the baffle disc (5-1), a first explosion transmission channel (5-4) and a limiting hole (5-5) are arranged on the rotary disc (5-2), a torsion spring (5-6) providing rotation power for the rotary disc (5-2) and a concave part (5-7) used for being matched with the limiting steel ball (5-3), and a second explosion transmission channel (5-8) located below the rotary disc (5-2) is arranged at the middle shaft of the baffle disc (5-1).
7. A grenade fuse with switchable delay time according to claim 6, characterised in that: the rotary disc (5-2) is rotatably connected to the baffle disc (5-1) through a rotating shaft (5-9), and the torsion spring (5-6) is installed on the rotating shaft (5-9).
8. A grenade fuse with switchable delay time according to claim 6, characterised in that: the safety assembly (6) for the handle comprises a guide pipe (6-1), and a safety rod (6-2) inserted into the limiting hole (5-5) and a release spring (6-3) sleeved on the safety rod (6-2) are arranged in the guide pipe (6-1).
9. A grenade fuse with switchable delay time according to claim 6, characterised in that: the delay safety component (7) comprises a pin pulling pipe (7-1), a pin pulling rod (7-2) used for blocking the limiting steel ball (5-3), a pin pulling spring (7-3) sleeved on the pin pulling rod (7-2) and pin pulling gunpowder (7-4) located above the pin pulling rod (7-2) are arranged in the pin pulling pipe (7-1).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110832068.6A CN113494871B (en) | 2021-07-22 | 2021-07-22 | Grenade fuze with switchable delay time |
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|---|---|---|---|
| CN202110832068.6A CN113494871B (en) | 2021-07-22 | 2021-07-22 | Grenade fuze with switchable delay time |
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| CN113494871B CN113494871B (en) | 2023-08-11 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114543584A (en) * | 2022-03-11 | 2022-05-27 | 江西星火军工工业有限公司 | Redundancy safety mechanism for manually laying weapon |
| CN114923381A (en) * | 2022-05-23 | 2022-08-19 | 中国人民解放军63856部队 | Test method for testing action reliability of grenade fuse |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114543584A (en) * | 2022-03-11 | 2022-05-27 | 江西星火军工工业有限公司 | Redundancy safety mechanism for manually laying weapon |
| CN114923381A (en) * | 2022-05-23 | 2022-08-19 | 中国人民解放军63856部队 | Test method for testing action reliability of grenade fuse |
| CN114923381B (en) * | 2022-05-23 | 2024-02-20 | 中国人民解放军63856部队 | Test method for checking action reliability of grenade fuze |
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| CN113494871B (en) | 2023-08-11 |
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