CN115790296B - Safety type time-delay fuze for grenade - Google Patents
Safety type time-delay fuze for grenade Download PDFInfo
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- CN115790296B CN115790296B CN202211470002.8A CN202211470002A CN115790296B CN 115790296 B CN115790296 B CN 115790296B CN 202211470002 A CN202211470002 A CN 202211470002A CN 115790296 B CN115790296 B CN 115790296B
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Abstract
The invention discloses a safe type time delay fuze for grenades, which comprises a body, an impact fire cap, a firing pin, a turning plate, a rotating shaft, a torsion spring, a holding piece, a safety pin, a safety ring, an explosion-proof bolt, an explosion-proof screw tube and an insensitive flame delay detonator, and meets the requirements of GJB3194-1998 on the safety design criteria of manually laid weapons. Before throwing, the explosion-proof bolts and the explosion-proof screw pipes between the sensitive impact fire cap and the insensitive flame delay detonator are respectively screwed off from two sides according to different screwing directions, the fuse is relieved, and the grenade is in a state to be thrown. After the safety ring is pulled down, the safety pin is pulled out, the safety of the holding piece is released, and the holding piece is still held on the elastomer by fingers. After throwing, the holding piece falls off, the firing pin on the turning plate rotates around the rotating shaft under the action of the torsion spring, and the firing pin hits the fire cap to fire the fire cap, so that the insensitive flame delay detonator is triggered, and after the insensitive flame delay detonator fires, the main charge in the projectile body is detonated through preset delay. The invention has simple and compact structure, short exposed elastomer part and low cost.
Description
Technical Field
The invention belongs to a fuze technology, and particularly relates to a safety type time delay fuze for grenades.
Background
The grenade and the use of the primer thereof need manual operation, so the safety design requirement aiming at the grenade primer is different from the general safety design criteria of the primer, namely, the national military standard GJB373B-2019 and the U.S. military standard MIL-STD-1316F, and is special for the manual layout of the weapon safety design criteria, namely, the national military standard GJB3194-1998 and the U.S. military standard MIL-STD-1911. Except for the specific regulations of the redundant insurance requirement, the two standards, namely the manual weapon safety design rule and the fuze safety design rule, are different in main content. However, from the view of the manual MIL-HDBK-145C ' active fuze overview ', the 17 grenade fuze models listed do not meet the requirements of MIL-STD-1911 ' manual weapon safety design rule, including the most basic flameproof safety requirements and redundant safety requirements. In recent years, the existing domestic products are developed according to the requirements of GJB3194-1998 on the design rule of safety of weapons laid manually, but some products can not further meet the requirements of redundant insurance, and some products are too complex in structure, inconvenient to operate and use and high in cost. In addition, the fuze is exposed to the projectile body longer, so that the grenade is difficult to be spherical or nearly spherical in shape, and therefore, the resistance is greatly different when the grenade is thrown in different directions (postures) or flies in different postures in the air, so that the projectile drop points are scattered greatly, and the requirements of accuracy and precision of the predetermined attack or defense impact points are difficult to be met (see Wang Yushi, wu Bo, spring smelling, etc. the grenade without a handle and the fuze thereof are designed by ballistic characteristic analysis.
Chinese patent application CN102466435A, a grenade fuze, paper, electromechanical grenade fuze research (Li Ning, ji Xinglin, cui Ping, etc.), paper, grenade electronic trigger fuze using magneto-electric generator (Sun Zhongsheng, guo Junxian, hao Yimin, etc.), paper, digital grenade fuze research and design (Zhou Mingan, guo day, cheng Xiaodong, etc.), the safety requirements (such as flameproof safety and redundancy insurance) specified by the GJB3194-1998, manual layout weapon safety design criteria, and specific technical structure for implementation thereof are not involved. The safety mechanism of the grenade fuze is disclosed in China patent application CN102278917A, a service safety mechanism of the grenade fuze, and China patent application CN102374831A, a safety mechanism of the grenade fuze, and the safety requirements, such as explosion-proof safety and redundant safety, specified by GJB3194-1998, manual weapon safety design rule are not related.
Disclosure of Invention
The invention aims to provide the safe time delay fuze for the grenade, which has the advantages of simple structure, low cost and redundancy safety, and the exposed projectile body part of the fuze is shorter, so that the aerodynamic symmetry of the grenade is not obviously affected, and further, the throwing accuracy and precision are improved during attack and defense combat.
The technical scheme for realizing the aim of the invention is that the safety type delay detonator for the grenade has the advantages of simple structure, low cost and redundant safety characteristics, and comprises a body, a firing module, a safety module, an explosion-proof module and a insensitive flame delay detonator module. The structure and principle of the ignition module and the safety module are basically the same as those of the existing grenade delay fuze (such as the U.S. M201 series fuze), and the delay fuze comprises a firing pin, a turning plate, a rotating shaft, a torsion spring, a holding piece, a safety pin and a safety ring, so that the actions of pulling the pin and holding the holding piece just before throwing are kept unchanged, and a user is helped to quickly and skillfully grasp the use requirement. The main difference is that an explosion-proof module is additionally arranged between the ignition module and the insensitive flame delay detonator module, so that an explosion-proof bolt, an explosion-proof screw pipe and a sensitive impact fire cap are newly added, the original sensitive impact delay detonator is correspondingly changed into the insensitive flame delay detonator, and the main body is adaptively modified according to a new structure, but basically the same as the main structure of the delay detonator body for the existing grenade.
The body is the main structure of the fuze, and is provided with connecting threads with the projectile body. The outer contour of the body takes the thread axis as a symmetrical line, the outer contour of the body takes a rotator shape, a five-step through hole is arranged on the body along the axis, namely a first step hole, a second step hole, a third step hole, a fourth step hole and a fifth step hole are respectively arranged from outside to inside from top to bottom, a third step through hole is arranged on the body along the radial direction and vertically communicated with the fourth step hole, the third step through hole sequentially comprises a sixth step hole, a seventh step hole and an eighth step hole, the sixth step hole and the eighth step hole are symmetrically distributed, a first transverse hole parallel to the sixth step hole is arranged on the body and close to the position which is deviated from the axis and corresponds to half of the depth of the first step hole, a second transverse hole parallel to the first transverse hole is arranged on the outer side of the first transverse hole and close to half of the depth of the second step hole, a cantilever-shaped bulge parallel to the first transverse hole is arranged on the other side which is symmetrical to the first transverse hole and at the outer edge of the body, a fire module is positioned in the first step hole and the third step hole, a fire module is positioned in the third step hole, a fire protection module is positioned in the third step hole, and a fire protection module is positioned in the fire protection module.
The third-stage hole of the body is internally provided with a sensitive impact fire cap, the first transverse hole of the body is provided with a rotating shaft of the ignition module, the ignition module is distributed around the first transverse hole, the second transverse hole of the body is provided with a safety pin in a safety module of the ignition module, and the safety module of the ignition module is distributed around the second transverse hole.
Compared with the existing delay fuze for non-flameproof grenades, the delay fuze for non-flameproof grenades is characterized in that an original sensitive impact delay detonator is divided into two parts which are used in series, namely an impact fire cap with a sensitive input end and a flame delay detonator with a sealed and insensitive output end, a flameproof mechanism (flameproof piece) is additionally arranged between the sensitive impact fire cap and the insensitive flame delay detonator, namely a flameproof screw tube and a flameproof bolt which are released by means of manual actions with different rotation directions, the flameproof screw tube and the flameproof bolt are required to be respectively screwed out from two sides before throwing and use, and the insensitive flame delay detonator is the ignition powder, the delay powder and the high explosive filled in the detonator which are the allowable in-line explosive with sensitivity not higher than that of a super-flexor.
Further, the safety module comprises a holding piece, a safety pin and a safety ring, wherein the safety pin and the safety ring are flexibly combined together, the safety pin is inserted into a second transverse hole on the body through a preformed hole on the holding piece to fix the holding piece on the body, the main body part of the holding piece is abutted against the outer wall surface of the elastomer, the firing pin of the firing module is blocked to be in a safety state, and a hook at the front end of the holding piece is hooked on the cantilever-shaped bulge of the body.
The ignition module comprises a main body, a rotating shaft, a torsion spring, a firing pin, a turning plate and an impact fire cap, wherein the rotating shaft is arranged in a first transverse hole of the main body, the torsion spring is sleeved on the rotating shaft after being pre-twisted, one end of the torsion spring is pressed on the turning plate, the other end of the torsion spring is fixed by the main body, the firing pin is fixed on the turning plate in a riveting mode, the firing end of the firing pin is hemispherical, and the impact fire cap is riveted and fixed in a third-stage hole of the main body.
The explosion-proof module comprises a body, an explosion-proof screw, an explosion-proof mechanism, an explosion-proof bolt, an explosion-proof screw and a seventh-order hole, wherein the body is provided with two explosion-proof mechanisms, the explosion-proof mechanism is arranged in the sixth-order hole and the eighth-order hole, the explosion-proof mechanism comprises an explosion-proof bolt and an explosion-proof screw, the explosion-proof bolt and the explosion-proof screw are in a revolving body configuration, the explosion-proof mechanism is respectively arranged in the sixth-order hole, the eighth-order hole and the seventh-order hole of the body, the explosion-proof bolt and the explosion-proof screw are connected with the holes in which the explosion-proof screw are arranged in a threaded mode, the explosion-proof mechanism is screwed in from two sides respectively and is locked by a preset screwing moment, the outer end faces of the explosion-proof bolt and the explosion-proof screw are not higher than the surfaces of the hole, so that the safety reliability of the explosion-proof bolt and the explosion-proof screw is facilitated, and the explosion-proof screw can independently realize the explosion-proof safety requirement under the premise that the explosion-proof screw is independent of not dependent on the existence of the other.
Further, the insensitive delay detonator module comprises a tube shell, and a reinforcing cap, a high explosive, an ignition powder, a delay powder, a blocking piece and an ignition powder which are sequentially arranged in the tube shell along the direction from an output end to an input end, wherein the mouth part of the insensitive delay detonator is downwards riveted in a fifth-stage hole, the sensitivity of all the charges such as the high explosive, the ignition powder and the delay powder is not higher than that of a special bend, and if combustion output is needed, the high explosive can be replaced by the insensitive ignition powder.
Compared with the prior art, the invention has the remarkable advantages that:
(1) The external dimension, the mass and the interface dimension with the warhead of the existing fuze are not required to be changed, and the main operation and use steps are not required to be changed.
(2) Two sets of independent explosion-proof mechanisms are additionally arranged, and related requirements specified in GJB3194-1998 Manual weapon safety design criteria of explosion-proof safety, redundancy insurance and the like are met.
(3) Compact structure, simplicity, good productivity of parts and low cost.
(4) After the insensitive detonator shell is thickened, reinforced and coated with the heat insulation material, the insensitive requirement, namely the requirement of low vulnerability characteristic, can be met.
(5) The impact ignition principle is adopted, so that the explosive treatment safety requirement of the non-explosive can be met.
Drawings
Fig. 1 is a cross-sectional view (front view) of a safety type time delay fuze for grenades according to the present invention along a structural symmetry plane.
Wherein 1 is the body, 2 is the impact cap, 3 is the firing pin, 4 is the flap, 5 is the pivot, 6 is the torsion spring, 7 is the grip piece, 8 is the safety pin, 10 is the flame-proof bolt, 11 is the flame-proof solenoid, 12 is the insensitive flame delay detonator, 121 is the reinforcing cap, 122 is the insensitive ignition powder or insensitive high explosive, 123 is the insensitive delay powder or insensitive ignition powder, 124 is the insensitive delay powder, 125 is the barrier piece, 126 is the insensitive ignition powder, 127 is the cartridge.
Fig. 2 is a plan view of a safety type time delay fuse for grenades according to the present invention.
Fig. 3 is a cross-sectional view (left side view) of a safety delay fuse for grenades according to the invention, taken through the central axis and perpendicular to the plane of symmetry, before the assembly of the safety pin and safety ring.
Fig. 4 is a projection view of a safety type delay fuse for grenades according to the present invention along a direction perpendicular to a symmetry plane, wherein 9 is a safety ring.
Fig. 5 is a right side view of a safety delay fuse for grenades according to the invention, before the grip tab, the safety pin and the safety 9 are assembled.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1-5, the safety type delay detonator for grenades comprises a body 1, a safety module, a firing module, an explosion-proof module and a insensitive flame delay detonator 12, wherein the safety module, the firing module, the explosion-proof module and the insensitive flame delay detonator 12 are all used as functional modules. The structure and principle of the ignition module and the safety module are basically the same as those of the existing grenade delay fuze (such as an M201 series fuze in the United states), and the delay fuze comprises a firing pin 3, a turning plate 4, a rotating shaft 5, a torsion spring 6, a holding piece 7, a safety pin 8 and a safety ring 9, so that the operation just before throwing comprises the action of pulling out the safety pin 8 and holding the holding piece 7, and the action is kept unchanged, which is helpful for a user to quickly and skillfully grasp the use requirement. The main difference is that an explosion-proof module is additionally arranged between the ignition module and the delay detonator module, so that an explosion-proof bolt 10, an explosion-proof screw tube 11 and a sensitive impact fire cap 2 are additionally arranged, the sensitive impact delay detonator is correspondingly changed into an insensitive flame delay detonator 12, and the body 1 is adaptively modified according to a new structure and basically the same as the existing delay detonator body for grenades.
The body 1 is the main structural member of the fuze and is provided with connecting threads with the projectile body. The thread axis is used as a symmetrical line, the outer contour of the body 1 is in a rotator shape, a five-step through hole is formed in the body 1 along the axis, a first step hole, a second step hole, a third step hole, a fourth step hole and a fifth step hole are respectively formed from top to bottom, a third step through hole is formed in the body 1 in the radial direction and is vertically communicated with the fourth step hole, the third step through hole sequentially comprises a sixth step hole, a seventh step hole and an eighth step hole, the sixth step hole and the eighth step hole are symmetrically distributed, internal threads are formed in the sixth step hole and the eighth step hole, the major diameter and the thread pitch of the threads are the same, but the rotation directions of the threads are opposite, a first transverse hole parallel to the sixth step hole is formed in the body 1 near a position which is deviated from the axis and corresponds to a half of the depth of the first step hole, a second transverse hole parallel to the first transverse hole is formed in the outer side of the first transverse hole near a position which corresponds to a half of the depth of the second step hole, and cantilever-shaped protrusions parallel to the first transverse hole are formed in the other side symmetrical with the first transverse hole and the outer edge of the body 1.
The first-stage hole and the second-stage hole of the body 1 are used for giving a movement space for a firing pin 3 which performs overturning and firing movement along with a turning plate 4, a sensitive impact fire cap 2 is arranged in the third-stage hole with an upward input end, an explosion-proof module is arranged in the fourth-stage hole, a insensitive flame delay detonator 12 is arranged in the fifth-stage hole, a rotating shaft 5 of the ignition module is arranged in the first transverse hole of the body, the ignition module is arranged around the first transverse hole, a safety pin 8 in a safety module of the ignition module is arranged in the second transverse hole of the body, and the safety module of the ignition module is arranged around the second transverse hole.
Compared with the existing delay fuze for non-flameproof grenades, such as an M201 series fuze in the United states, the delay fuze is equivalent to dividing the original sensitive impact delay detonator into two parts which are used in series, namely the impact fire cap 2 with the sensitive input end and the flame delay detonator 12 with the sealed and insensitive output end. An explosion-proof mechanism (explosion-proof piece) is additionally arranged between the sensitive impact fire cap 2 and the insensitive flame delay detonator 12, namely an explosion-proof bolt 10 and an explosion-proof screw tube 11 which release safety (unscrew) by means of manual actions of different screwing directions. Before throwing, the explosion-proof bolt 10 and the explosion-proof screw tube 11 are respectively screwed out, and the safety is firstly relieved. The insensitive flame delay detonator 12 is an allowable in-line explosive with sensitivity not higher than that of the special flexor, and is filled with the ignition powder, the delay powder and the high explosive.
Further, the safety module comprises a holding piece 7, a safety pin 8 and a safety ring 9, wherein the safety pin 8 and the safety ring 9 are flexibly combined together, the safety pin 8 is inserted into a second transverse hole on the body 1 through a reserved hole on the holding piece 7 to fix the holding piece 7 on the body 1, the safety pin 8 is a split pin, after passing through the body 1 and the holding piece 7, the split end of the safety pin 8 is slightly opened to realize safety, the tension of the safety ring 9 is large enough when throwing, the safety pin 8 is opened and drawn out from the body 1 and the holding piece 7 by means of holes on the body 1 and the holding piece 7 to finish releasing safety, a boss is arranged on the side surface of the body 1, the safety ring 9 is turned over on the boss of the body 1 at ordinary times to realize positioning, and prevent a user from accidentally taking the safety ring 9 out of the body 1 from the positioning boss by hands before using, the main body 7 is abutted against the surface of an elastic contour, and the firing pin 3 of the firing mechanism is blocked to be in a state of the safety hook-shaped boss of the body 1.
The ignition module comprises a body 1, an impact fire cap 2, a firing pin 3, a turning plate 4, a rotating shaft 5 and a torsion spring 6, wherein the rotating shaft 5 is arranged in a first transverse hole of the body 1 and is fixed in a spot riveting or bonding mode, the torsion spring 6 is sleeved on the rotating shaft 5 after being pretwisted, one end of the torsion spring 6 is pressed on the turning plate 4, the other end of the torsion spring is fixed by the body 1, the firing pin 3 is fixed on the turning plate 4 in a riveting mode, the impact fire end of the firing pin is hemispherical, and the input end of the sensitive impact fire cap 2 is outwards fixed in a third-stage hole of the body 1 through spot riveting.
Further, the explosion-proof module comprises two explosion-proof mechanisms except the body 1, wherein the explosion-proof mechanisms are respectively arranged in the sixth-order hole and the eighth-order hole, each explosion-proof mechanism comprises an explosion-proof bolt 10 and an explosion-proof screwed pipe 11, the explosion-proof bolts 10 and the explosion-proof screwed pipes 11 are in a revolving body configuration, the explosion-proof mechanisms are respectively arranged in the sixth-order hole and the eighth-order hole of the body 1 and the seventh-order hole of the body, are respectively connected with the holes in which the explosion-proof bolts 10 and the explosion-proof screwed pipes 11 are arranged in a threaded mode, are screwed in from two sides respectively and are locked by preset screwing moments, the front ends of the explosion-proof bolts 10 extend into reserved grooves of the explosion-proof screwed pipes 11, and therefore the outer end faces of the explosion-proof bolts 10 and the explosion-proof screwed pipes 11 are not higher than the orifice surfaces of the explosion-proof bolts 10 and the explosion-proof screwed pipes 11, and the explosion-proof reliability of any one of the explosion-proof bolts 10 and the explosion-proof screwed pipes 11 can be independently realized on the premise that the other explosion-proof bolts are independent of existence, namely, the explosion-proof bolts 10 and the explosion-proof screwed pipes 11 can be prevented from being collided by a fire-sensitive detonator or a fire-induced by an accidental fire-sensitive detonator or a fire-induced by the explosion-proof cap or an accidental fire-induced by the explosion-sensitive fire-inducing fire explosion-proof cap or a fire-inducing device.
Further, the insensitive delay detonator module 12 comprises a tube shell 127, a reinforcing cap 121, an explosive 122, an ignition powder 123, a delay powder 124, a blocking piece 125 and an ignition powder 126 which are sequentially arranged in the tube shell 127 along the direction from an output end to an input end, wherein the mouth of the insensitive delay detonator 12 is arranged in a fifth-stage hole in a downward riveting manner, the sensitivity of all charges such as the insensitive explosive, the insensitive ignition powder and the insensitive delay powder is not higher than that of a special bend, if combustion output is required, the insensitive explosive can be changed into the insensitive ignition powder, the insensitive delay detonator 12 is triggered by weak detonation of the input end sensing impact sensitive fire cap output, the input end adopting a closed structure, namely the closing end of the tube shell 127, is positioned at the output end, so that the flameproof safety is improved, and the blocking piece 125 is used for attenuating the input energy of the sensitive impact fire cap 17, so that the insensitive flame delay detonator 12 is ensured to be stable.
The insensitive high explosive can be mixed explosive blunt black-5 (A5), poly-O-9 (PBXN-5) or Hexanitrostilbene (HNS). The insensitive ignitors may be boron/potassium nitrate ignitors. The insensitive delay powder can be tungsten series delay powder which takes diatomite and shellac as insensitive agents (the proportion of the insensitive agent is about 37.6 percent of tungsten powder, 10.6 percent of potassium perchlorate and 51.8 percent of barium chromate).
The invention has the innovation points that on the premise of not changing the shape, the quality and the bullet interface of the fuze and mainly using the operation steps, two sets of mutually independent 'screw plug' explosion-proof mechanisms are arranged in the middle of an explosion sequence, so that the detonation transfer and the accidental explosion of the grenade possibly caused by accidental ignition of a sensitive explosion element are blocked, and the safety in storage, transportation and use is ensured. The exposed height is not increased, so that the quality characteristic and aerodynamic characteristic of the grenade are balanced, and the throwing accuracy is not affected. The principle of striking ignition is inherited, and the safety of explosive treatment of the non-explosive can be ensured. Simple structure and low cost.
The invention relates to a safety type time delay fuze for grenades, which has the main safety principle as follows:
during service treatment, the fuze is in an explosion-proof state, namely a factory assembly state, and the impact, vibration and falling of the fuze can not cause the fuze to act accidentally.
The flameproof bolt 10 and the flameproof screw tube 11 are screwed into the transverse holes in the middle of the body 1 from two ends, namely a sixth-order hole and an eighth-order hole, respectively, so as to block the initiation of the sensitive impact fire cap 2 on the insensitive flame delay detonator 12. The tightening torque and the structural axisymmetric characteristics (the mass center is positioned on the axis) of the explosion-proof bolt 10 and the explosion-proof screw tube 11 ensure the correctness and the credibility of the positions of the explosion-proof screw tube 11. At this time, even if the sensitive impact fire cap 2 fires accidentally, the insensitive flame delay detonator 12 positioned below the flame-proof bolt 10 and the flame-proof screw 11 is not triggered, and thus the charging in the grenade warhead is triggered.
The open-shaped safety pin 8 sequentially passes through the holding piece 7 and the body 1, so that the holding piece 7 is protected on the body 1, at the moment, the holding piece 7 presses the firing pin 3, the safety pin 8 also blocks the turning plate 4 to prevent the turning plate from turning over, the open end of the safety pin 8 is slightly opened to realize the safety, and the fuse ignition mechanism is in a safety state. The safety ring 9 is turned over and buckled on a boss on the side surface of the body 1 at ordinary times, and is provided with a certain interference to generate elastic tension so as to prevent a user from accidentally taking out the safety pin 8 due to trusted tactical actions. Under the trusted service processing environments such as vibration, accidental drop and the like, the fuze can still be kept in the insurance state.
The insensitive flame delay detonator 12 adopts a closed input end and closed output end structure, thereby avoiding a potential fire transmission path of the detonator in an explosion-proof state and improving the explosion-proof safety.
The requirement for safe separation of grenades from throwers is achieved by ignition control delay, i.e. by a insensitive flame delay detonator 12.
The shell 127 is made of high-strength steel and has a thicker wall thickness, so that the insensitive characteristic, namely the low-vulnerability characteristic, is realized while the insensitive flame delay detonator 12 is ensured to reliably realize the combustion-to-detonation, and extreme environments such as quick baking, slow baking, gunshot, broken piece striking, jet impact and the like can be born. The inner and outer surfaces of the tube shell 127 are coated with a certain amount of heat insulating and buffering material, which is helpful for realizing the insensitive characteristic, namely the low-vulnerability characteristic.
The fuse ignition adopts the impact ignition principle that a striker strikes a sensitive impact fire cap, the energy required for ignition is larger, the sensitive impact fire cap is ignited by a plurality of hot spots, and the reliability is high. In case of a misfire, the striker 3 will not cause the sensitive impact fire cap 2 to re-fire in case of accidental environmental impact such as subsequent credible transportation vibration, drop, etc. Therefore, the principle of striking ignition is inherited instead of the principle of needling ignition with low ignition energy, and the original better explosive handling characteristic of the nonexplosive is maintained.
The invention relates to a safety time delay fuze for grenades, which comprises the following working processes:
Before use, the explosion-proof bolt 10 and the explosion-proof screw tube 11 are unscrewed from the fuse by a miniature special wrench or a temporary coin, and the fuse is released.
After holding the grip tab 7 before throwing, the safety ring 9 with its associated safety pin 8 is pulled from the grenade. Before throwing, the holding piece 7 should be held all the time and not be loosened. The grenade throwing hand momentarily releases the grip tab 7. After throwing, the holding piece 7 falls off in the air under the pushing of the turning plate 4 and the action of air resistance, the torsion spring 6 rotates around the rotating shaft 5, the turning plate 4 drives the firing pin 3 to rotate along the potential to strike the sensitive impact fire cap 2 to fire the sensitive impact fire cap, then the insensitive ignition powder 126 in the insensitive flame delay detonator 12 is triggered, the generated flame passes through the blocking piece 125 to ignite the insensitive delay powder 124, the insensitive delay powder 124 burns after a plurality of seconds, and finally the high explosive 122 is detonated through the burning-to-detonation action of the insensitive ignition powder 123, so that the grenade explodes.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211470002.8A CN115790296B (en) | 2022-11-23 | 2022-11-23 | Safety type time-delay fuze for grenade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN113494871A (en) * | 2021-07-22 | 2021-10-12 | 中国人民武装警察部队工程大学 | Grenade fuse with switchable delay time |
| CN115289915A (en) * | 2022-08-09 | 2022-11-04 | 中国人民武装警察部队工程大学 | Oval kinetic grenade with multiple non-lethal strike effects |
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| CN87210082U (en) * | 1987-07-17 | 1988-05-25 | 北京工业学院 | Kinetic energy bullet for policemen |
| DE102009059951B4 (en) * | 2009-12-22 | 2012-05-03 | Diehl Bgt Defence Gmbh & Co. Kg | Hand grenade fuse |
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| CN113494871A (en) * | 2021-07-22 | 2021-10-12 | 中国人民武装警察部队工程大学 | Grenade fuse with switchable delay time |
| CN115289915A (en) * | 2022-08-09 | 2022-11-04 | 中国人民武装警察部队工程大学 | Oval kinetic grenade with multiple non-lethal strike effects |
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