CN108413818B

CN108413818B - Multi-sound knocking bomb

Info

Publication number: CN108413818B
Application number: CN201810396183.1A
Authority: CN
Inventors: 汪送; 冯建伟
Original assignee: Engineering University of Chinese Peoples Armed Police Force
Current assignee: Engineering University of Chinese Peoples Armed Police Force
Priority date: 2018-04-20
Filing date: 2018-04-20
Publication date: 2023-06-27
Anticipated expiration: 2038-04-20
Also published as: CN108413818A

Abstract

The invention discloses a multi-sound detonation bomb which comprises a bomb base, a bomb core bottom plate, a screw-in type gas cylinder fixing seat, a high-pressure gas cylinder, a transmitting tube, an I-shaped detonation plug, a detonation hole, a firing pin, a needling delay ignition tube and a top cover, wherein the bomb base is connected with the bomb core bottom plate through gluing, the screw-in type gas cylinder fixing seat is connected with the axis of the bomb core bottom plate through external threads and fixes the high-pressure gas cylinder, high-pressure nitrogen is filled in the high-pressure gas cylinder, the I-shaped detonation plug is rapidly moved, deformed and punched out of the detonation hole under the action of the high-pressure nitrogen, primary and secondary blasting is realized, multiple sounds are caused, the firing pin is used for completing the firing of the high-pressure gas cylinder, the firing pin is used for needling the delay ignition tube, and the top cover is riveted with the firing pin and seals the full bomb. The explosion-proof gun has reasonable structure and ingenious design, can effectively avoid the explosion phenomenon by emitting through the explosion-proof gun, can produce sound through high-pressure gas explosion, does not cause unexpected fire, and remarkably improves the whole bullet safety.

Description

Multi-sound knocking bomb

Technical Field

The invention relates to the technical field of riot bullets, in particular to a multi-sound knocking bullet.

Background

In the army, armed police and public security diversification tasks, particularly in the handling of group riot events, how to safely and efficiently dispel riot people becomes a key link for limiting the success rate of the handling events, and in view of the complexity of the situation of the group riot events and the public opinion pressures in the world and in China, the use of fatal weapons is limited, and at the moment, non-fatal weapons become the first choice equipment for handling actions. Among non-lethal weapons, the use of detonation cartridges is favored in that the detonation cartridge produces a strong acoustic effect through the explosion, temporarily dizziness the targeted person and losing resistance, but without causing death, injury or disability. The detonation bomb belongs to the category of acousto-optic bomb, and has better deterrence effect, so that the detonation bomb is widely applied to various tasks. However, the existing acousto-optic bullets emit light and sound by utilizing the energy generated by gunpowder explosion, so that accidental fire is easy to cause, and meanwhile, the existing acousto-optic bullets are hand throwing type, so that the throwing distance is short, and the tactical effect is poor; secondly, the potential safety hazard is more when the hand is thrown, and the early ignition of the delay tube is easy to happen so as to cause the death and the residue of the human being. The gun type detonation bomb can be developed to improve the firing range and achieve better tactical effect, but has potential safety hazards such as easy firing.

Disclosure of Invention

The invention aims to provide a multi-sound knocking bomb which is used for solving the problems in the prior art.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a many rings detonation cartridge, includes body base, primer hole, primer, propellant powder box, propellant powder, pass the fire hole, low pressure room, bullet core bottom plate, bullet core, screw in gas cylinder fixing base, high-pressure gas cylinder, gas cylinder sealed lid, high-pressure gas chamber, transmitting tube, blast hole, I shape blast plug, firing pin snap ring, expand and explode the medicine box, expand and explode the medicine, acupuncture delay ignition tube, firing pin, top cap and shell, its characterized in that: the explosion-proof device is characterized in that a primer hole is formed in the axis of the bottom end face of the elastomer base, primer is arranged in the primer hole, a propellant box is arranged on the upper portion of the primer, propellant is filled in the propellant box, a fire transmission hole is formed in the axis of the upper end face of the propellant box, a low-pressure chamber is arranged on the upper side of the fire transmission hole, a hollow circular ring on the upper side of the low-pressure chamber and the upper end face of the elastomer base is fixed with an elastomer core base in an adhesive mode, the elastomer core base is a hollow cylinder, an inner thread matched with the outer thread of the screw-in type gas cylinder base is arranged on the inner side of the axis of the elastomer core base, the screw-in type gas cylinder base is used for fixing a high-pressure gas cylinder, high-pressure nitrogen gas is filled in the high-pressure gas cylinder, the high-pressure gas cylinder is sealed by a gas cylinder sealing cover, an I-shaped blasting plug is arranged in the inside the high-pressure gas cylinder, the front end of the propellant tube is provided with a blasting hole, a striker is arranged at a proper position right above the axis of the gas cylinder sealing cover, the high-pressure sealing cover is fixed with the elastomer core base by gluing, the inner side of the explosive core is inserted into the explosion-proof housing, the inner side of the explosion-proof housing is riveted with the explosive core, and the inner end face of the explosion-proof housing is inserted into the explosion-proof housing, and the explosion-proof housing is inserted into the explosion-proof housing.

Preferably, the elastomer base, the elastomer core, the top cover and the elastomer shell are made of stainless steel materials; the top cover is connected with the shell through shearing threads, so that the impact force of the firing pin on the needling delay ignition tube is ensured, and the smooth shearing damage is ensured, thereby ensuring that the core is smoothly pushed out.

Preferably, the elastic core bottom plate and the screw-in type gas cylinder fixing seat are made of high-temperature resistant materials, so that the ablation of the elastic core and the high-pressure gas cylinder caused by high-temperature and high-pressure gunpowder gas generated by the combustion of the propellant can be effectively isolated.

Preferably, the cylinder sealing cover is made of a fragile material, and can be smoothly broken by the striker while ensuring the sealing property.

Preferably, the transmitting tube comprises a transmitting tube tail tube at the rear end, and the transmitting tube tail tube is communicated with the high-pressure gas cavity; the explosion hole comprises a cross screwing screw hole and screwing threads matched with the elastic core, and the explosion hole is screwed and fixed after the I-shaped explosion plug is installed.

Preferably, the bullet core is internally provided with 4-6 groups of combinations of the transmitting pipes, the blasting holes and the I-shaped blasting plugs, the combinations are distributed in a circumferential array along the axis of the bullet core, and each combination comprises 6-8 transmitting pipes, the blasting holes and the I-shaped blasting plugs.

Preferably, the I-shaped explosion plug comprises an explosion plug rear end ring, an explosion plug supporting rod and an explosion plug front end ring, wherein the explosion plug rear end ring and the explosion plug front end ring are made of polyethylene foam, and the explosion plug supporting rod is made of hard rubber. Under the action of high-pressure nitrogen, the rear end ring of the explosion plug and the front end ring of the explosion plug are stressed to move and deform rapidly, when the front end ring of the explosion plug punches out of an explosion hole, the explosion plug is regarded as primary explosion, when the rear end ring of the explosion plug punches out of the explosion hole, the explosion plug is regarded as secondary explosion, the two-time explosion is multiple-sound, the sound intensity of the secondary explosion is higher than that of the primary explosion, and the I-shaped explosion plug punched out by the secondary explosion also has a certain kinetic energy striking effect on a target.

Preferably, the firing pin comprises a firing pin cap, an upper firing pin shaft, a firing pin unidirectional blocking ring, a lower firing pin shaft and a firing pin tip, wherein the firing pin cap is acted by high-pressure high-temperature gas generated by combustion of the explosive, moves downwards to force the firing pin unidirectional blocking ring to punch through the firing pin clamping ring so as to further drive the firing pin tip to crush the sealing cover of the gas cylinder, the length of the upper firing pin shaft is larger than the height of the firing pin clamping ring, the length of the lower firing pin shaft is larger than the height of the sealing cover of the gas cylinder, and the firing pin unidirectional blocking ring is acted by the firing pin clamping ring after the sealing cover of the gas cylinder is crushed, so that the firing pin can be prevented from moving upwards, and a certain sealing effect is achieved on the high-pressure gas cavity.

Preferably, the needling delay ignition tube is clamped in a cylindrical hole at the top of the bullet core, and cannot accidentally fall off in the process of inverting or falling the whole bullet, and the delay time of the needling delay ignition tube is 2-2.5 s.

Preferably, the firing pin is riveted with the top cover as a whole, and the axis of the firing pin coincides with the axis of the needling delay squib.

Compared with the prior art, the invention has the following advantages:

1. the invention has reasonable structure and novel and scientific design;

2. the invention can realize firing of the high-pressure gas cylinder only after the bullet core is forced to move towards the top cover direction to promote the needling delay tube to be passively needled and combusted by the firing pin, so that when the propellant powder is neglected to be loaded or fails, the gas pressure generated by the combustion of the primer is insufficient to push the bullet core to move, and the firing chamber cannot occur;

3. in the invention, as the explosive expanding agent only completes the rapid pushing of the firing pin, the explosive loading amount is smaller, the thickness of the elastic core around the explosive expanding agent box is larger, the too high rifling pressure is not caused, and the safety coefficient is further improved;

4. according to the invention, even if accidental piercing of the needling delay ignition tube occurs, the outer side of the bullet core is propped against the metal bullet shell, so that the high-pressure nitrogen released by the high-pressure gas cylinder only can flush the top cover, and further, the gun barrel can be rapidly deflated, and the explosion phenomenon is avoided;

5. the invention adopts the high-pressure gas cylinder as a power source for blasting sounding, smoke and flame can not appear near a target, and fire can not be caused, in addition, the bomb is smokeless and flameless, is beneficial to the deployment of diversified tactics, is not affected by regions in use, and has the same blasting effect in plain and plateau areas;

6. according to the invention, the anti-riot gun is adopted for emission, so that the range is greatly improved compared with a hand-throwing mode, and the remote and large-range dispersion of riot people is facilitated;

7. the flexible I-shaped blasting plug designed by the invention can successively realize two blasts, the multi-sound blasting effect enables the invention to have larger deterrence, and meanwhile, the I-shaped blasting plug punched by the two blasts has a certain kinetic energy striking effect on a target, thereby realizing effective combination of noise dispersion and kinetic energy dispersion.

In conclusion, the invention has reasonable structure, ingenious design and convenient use, does not cause fire, explosion and other phenomena in use, greatly improves the overall safety, has longer range, is not limited by regions in use, integrates double striking effects of noise dispersion and kinetic energy dispersion, realizes multiple-time and multi-sound blasting sound, has no smoke and flame, and greatly improves tactical effects.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic view showing an initial state of the I-shaped blast plug 16 according to the present invention;

FIG. 3 is a schematic diagram of the compressive deformation of the I-shaped blast plug 16 of the present invention;

fig. 4 is a schematic diagram of the position of the i-shaped blasting plug 16 after one shot in the present invention;

fig. 5 is a schematic diagram of the instant of secondary blasting of the i-shaped blasting plug 16 of the present invention;

fig. 6 is a perspective view of the blast hole 15 of the present invention;

fig. 7 is a perspective view of the striker 17 according to the present invention.

In the figure: 1. the explosion-proof explosive cartridge comprises an elastomer base, 2, a primer hole, 3, primer, 4, a propellant cartridge, 5, propellant, 6, a fire transfer hole, 7, a low-pressure chamber, 8, a cartridge base plate, 9, a cartridge, 10, a screw-in type gas cylinder fixing seat, 11, a high-pressure gas cylinder, 12, a gas cylinder sealing cover, 13, a high-pressure gas chamber, 14, a firing tube, 14-1, a firing tube tail tube, 15, a explosion hole, 15-1, a cross screw hole, 15-2, screw threads, 16, an I-shaped explosion plug, 16-1, an I-shaped explosion plug rear end ring, 16-2, an I-shaped explosion plug supporting rod, 16-3, an I-shaped explosion plug front end ring, 17, a firing pin, 17-1, a firing pin cap, 17-2, an upper firing pin rod, 17-3, a firing pin one-way stop ring, 17-4, a lower firing pin rod, 17-5, a firing pin tip, 18, a firing pin clasp, 19, an explosion-expanding cartridge, 20, an explosion-expanding explosive, 21, a pin punching ignition tube, 22, a firing pin, 23, a top cover, 24 and a bullet shell.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-7, the present invention provides a technical solution: the utility model provides a many rings detonation cartridge, including the body base 1, primer hole 2, primer 3, propellant powder box 4, propellant powder 5, pass fire hole 6, low pressure room 7, bullet core bottom plate 8, bullet core 9, screw-in gas cylinder fixing base 10, high pressure gas cylinder 11, gas cylinder seal lid 12, high pressure gas chamber 13, the launching tube 14, launching tube tail tube 14-1, the blasthole 15, cross screw hole 15-1, screw thread 15-2, I shape blasting plug 16, I shape blasting plug rear end ring 16-1, I shape blasting plug bracing piece 16-2, I shape blasting plug front end ring 16-3, firing pin 17, firing pin cap 17-1, upper portion firing pin pole 17-2, firing pin one-way stop ring 17-3, lower portion firing pin pole 17-4, firing pin point 17-5, firing pin 18, explosion-expanding cartridge 19, explosion expanding medicine 20, acupuncture point tube 21, firing pin 22, top cap 23 and shell 24, its characterized in that: the bottom end surface axis of the projectile body base 1 is provided with a primer hole 2, the primer hole 2 is internally provided with a primer 3, the primer 3 is a mechanical primer and is suitable for the firing of an anti-riot gun, the upper part of the primer 3 is provided with a propellant powder box 4, the propellant powder box 4 is filled with propellant powder 5, the axis of the upper end surface of the propellant powder box 4 is provided with a fire transfer hole 6, the upper side of the fire transfer hole 6 is provided with a low pressure chamber 7, the propellant powder 5 is rapidly combusted after being ignited by the primer 3, a large amount of high-temperature high-pressure propellant powder gas is generated to enter the low pressure chamber 7 from the fire transfer hole 6, the hollow circular ring on the upper side of the low pressure chamber 7 and the upper end surface of the projectile body base 1 are adhesively fixed with a projectile body base plate 8, the projectile body base plate 8 is separated from the projectile body base plate under the pushing action of the high-temperature high-pressure propellant powder gas, the projectile body base plate 8 is promoted to move in a direction exceeding a top cover 23, the projectile body base plate 8 is a hollow cylinder, the inner side of the axle center of the high-pressure gas cylinder is provided with an internal thread matched with the external thread of the screw-in gas cylinder base 10, the screw-in gas cylinder base 10 is used for fixing the high-pressure gas cylinder 11, the high-pressure gas cylinder 11 is filled with high-pressure nitrogen gas, the high-pressure gas cylinder 11 is sealed by a gas cylinder sealing cover 12, the outer side of the high-pressure gas cylinder 11 and the inner ring of a bullet core 9 are provided with a high-pressure gas cavity 13, the high-pressure gas cavity 13 is communicated with a transmitting tube 14, an I-shaped blasting plug 16 is arranged in the transmitting tube 14, the front end of the transmitting tube 14 is provided with a blasting hole 15, a firing pin 17 is arranged right above the axle center of the gas cylinder sealing cover 12, the firing pin 17 is abutted by a firing pin clamping ring 18 on the bullet core 9, an explosion expanding medicine box 19 is arranged right above the firing pin 17, an explosion expanding medicine 20 is filled in the explosion expanding medicine box 19, the lower part of the acupuncture delay ignition tube 21 is inserted into the explosion expanding medicine box 19, the firing pin 22 is riveted at the axle center of the lower end surface of the top cover 23, the inner side of the shell 24 abuts against the outer side of the core 9 and is integrally formed with the body base 1.

As shown in fig. 1, the elastomer base 1, the elastomer core 9, the top cover 23 and the elastomer shell 24 are made of stainless steel materials, the elastomer base 1 and the elastomer shell 24 are of an integral structure, after the invention is completely launched, the elastomer base 1 and the elastomer shell 24 are retained in a gun chamber of an anti-riot gun, the top cover 23 and the elastomer shell 24 are fixedly connected through shear threads, the shear threads are subjected to shear damage under the thrust action of the elastomer core 9, and the elastomer core 9 continuously flies along the launching direction.

As shown in FIG. 1, the bullet core bottom plate 8 and the screw-in gas cylinder fixing seat 10 are made of high temperature resistant materials, so that the ablation of the bullet core 9 and the high pressure gas cylinder 11 by high temperature and high pressure gunpowder gas generated by the combustion of the propellant powder 5 can be effectively isolated.

As shown in fig. 1, the cylinder packing head 12 is made of a fragile material, and can be smoothly crushed by the striker 17 while ensuring sealability.

Referring to fig. 2 and 6, the emitter tube 14 includes an emitter tube tail tube 14-1 at a rear end, and the emitter tube tail tube 14-1 communicates with the high-pressure gas chamber 13; the explosion hole 15 comprises a cross screwing screw hole 15-1 and a screwing thread 15-2 matched with the bullet core 9, and the explosion hole 15 is screwed and fixed after the I-shaped explosion plug 16 is installed.

As shown in fig. 1, the core 9 is provided with 4-6 groups of combinations of the transmitting pipes 14, the blastholes 15 and the i-shaped blasting plugs 16, the combinations are distributed in a circumferential array along the axis of the core 9, and each combination comprises 6-8 transmitting pipes 14, blastholes 15 and i-shaped blasting plugs 16.

Referring to fig. 2, 3, 4 and 5, the i-shaped explosion plug 16 includes an explosion plug rear end ring 16-1, an explosion plug support rod 16-2 and an explosion plug front end ring 16-3, wherein the explosion plug rear end ring 16-1 and the explosion plug front end ring 16-3 are made of polyethylene foam, a certain sealing effect can be achieved, deformation can also occur under the action of high-pressure gas pressure, and the explosion plug support rod 16-2 is made of hard rubber. Under the action of high-pressure nitrogen, the rear end ring 16-1 of the explosion plug and the front end ring 16-3 of the explosion plug are forced to move and deform rapidly, after the front end ring 16-3 of the explosion plug is propped against the explosion hole 15, the rear end ring 16-1 of the explosion plug is pressed and deformed, high-pressure nitrogen is caused to enter the periphery of the support rod 16-2 of the explosion plug, the front end ring 16-3 of the explosion plug is deformed and extruded into the explosion hole 15 in the pressure lifting process, and when the front end ring 16-3 of the explosion plug is punched out of the explosion hole 15, the explosion is regarded as primary explosion, and at the moment, a certain strength explosion sound is generated due to the fact that the high-pressure nitrogen is punched out. Then, the i-shaped explosion plug 16 continues to move, after the explosion plug rear end ring 16-1 abuts against the explosion hole 15, a certain time delay exists, after the pressure in the high-pressure gas cavity 13 continues to rise, the explosion plug rear end ring 16-1 is pressed and deformed and pushed into the explosion hole 15, when the explosion plug rear end ring 16-1 punches out of the explosion hole 15, the explosion plug 16 is regarded as secondary explosion, because the number of the transmitting tube 14 and the i-shaped explosion plug 16 is large, the two explosion is multiple, the secondary explosion sound intensity is higher than that of the primary explosion, and the secondary explosion punched i-shaped explosion plug 16 also has a certain kinetic energy striking effect on a target.

Referring to fig. 1 and 7, the striker 17 includes a striker cap 17-1, an upper striker shaft 17-2, a striker unidirectional blocking ring 17-3, a lower striker shaft 17-4 and a striker tip 17-5, wherein the striker cap 17-1 is downwardly moved by the high pressure and high temperature gas generated by the combustion of the booster 20, the striker unidirectional blocking ring 17-3 is forced to punch through the striker snap ring 18, thereby causing the striker tip 17-5 to crush the cylinder cap 12, the upper striker shaft 17-2 has a length greater than the height of the striker snap ring 18, the lower striker shaft 17-4 has a length greater than the height of the cylinder cap 12, and the striker unidirectional blocking ring 17-3 is prevented from moving upward by the striker snap ring 18 after the cylinder cap 12 is crushed, and has a certain sealing effect on the high pressure gas chamber 13.

As shown in fig. 1, the needling delay ignition tube 21 is clamped in a cylindrical hole at the top of the bullet core 9, and is not accidentally dropped in the process of inverting or falling the whole bullet, so that the reliability and service performance of the invention are effectively ensured.

As shown in fig. 1, the firing pin 22 is riveted with the top cover 23 into a whole, and the axis of the firing pin 22 coincides with the axis of the needling delay squib 21, so that the needling of the needling delay squib 21 can be completed at the moment of impact of the core 9.

Working principle:

when in use, firstly, the multi-sound detonation bomb is put into the explosion-proof gun bore with corresponding caliber, the bore is closed, the safety is opened, the explosion-proof gun trigger is triggered, the explosion-proof gun firing pin impacts the multi-sound detonation bomb primer 3, the primer 3 ignites the propellant 5, the propellant 5 is violently combusted, a large amount of high-temperature and high-pressure propellant gas is generated and enters the low-pressure chamber 7 from the fire transmission hole 6, after the high-temperature and high-pressure gas reaches the expected pressure value in the low-pressure chamber 7, the bomb core bottom plate 8 is pushed, the bomb core bottom plate 8 is separated from the bomb base 1, then the bomb core 9 continuously flies towards the top cover 23, at a certain moment in the flying process of the bomb core 9, the needle-punched delay ignition tube 21 is ignited by the firing pin 22, the bomb core 9 continuously flies, the screw thread between the top cover 23 and the bomb shell 24 is pushed to generate shearing damage, the bomb core 9 together with the top cover 23 continuously flies towards the explosion-proof gun opening, after flying out of the muzzle, in the process of flying the bullet core 9 along the trajectory, the needling delay ignition tube 21 burns rapidly, after the delay time of 2-2.5 s, the needling delay ignition tube 21 ignites the explosive 20, the explosive 20 burns violently to generate high-temperature high-pressure gas, the firing pin 17 is pushed to quickly crush the gas cylinder sealing cover 12, then high-pressure nitrogen in the high-pressure gas cylinder 11 is quickly released from the gas cylinder mouth and enters the high-pressure gas cavity 13, the high-pressure nitrogen pushes the I-shaped explosion plug 16 to quickly move and deform in the transmitting tube 14 and quickly rush out from the explosion mouth 15, primary and secondary explosion is completed, multiple sound generation is realized, great deterrence is formed for target people, and the punched I-shaped explosion plug 16 also forms kinetic energy striking to the people, so that effective combination of noise dispersion and kinetic energy striking is formed.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a many rings knock bullet, including projectile body base (1), primer hole (2), primer (3), propellant powder box (4), propellant powder (5), pass fire hole (6), low pressure room (7), bullet core bottom plate (8), bullet core (9), screw in gas cylinder fixing base (10), high-pressure gas cylinder (11), gas cylinder sealed lid (12), high-pressure gas chamber (13), projecting pipe (14), blast hole (15), I shape blast plug (16), firing pin (17), firing pin snap ring (18), expand and explode medicine box (19), expand and explode medicine (20), acupuncture delay ignition tube (21), firing pin (22), top cap (23) and shell (24), its characterized in that: the utility model discloses a bullet body base, which is characterized in that a bottom fire hole (2) is arranged at the axis of the bottom end surface of the bullet body base (1), a primer (3) is arranged in the primer hole (2), a propellant powder box (4) is arranged on the upper part of the primer (3), a propellant powder (5) is arranged in the propellant powder box (4), a fire transmission hole (6) is arranged at the axis of the upper end surface of the propellant powder box (4), a low-pressure chamber (7) is arranged on the upper side of the fire transmission hole (6), a hollow circular ring on the upper end surface of the low-pressure chamber (7) and the upper end surface of the bullet body base (1) are fixed with a bullet core bottom plate (8) in an adhesive way, the bullet core bottom plate (8) is a hollow cylinder, an internal thread matched with an external thread of a screw-in type gas cylinder fixing seat (10) is arranged on the inner side of the axis, the screw-in type gas cylinder fixing seat (10) is used for fixing a high-pressure gas cylinder (11), high-pressure nitrogen is filled in the high-pressure gas cylinder (11), the high-pressure gas cylinder (11) is sealed by a gas cylinder sealing cover (12), a high-pressure gas cavity (13) is arranged on the outer side of the high-pressure gas cylinder (11) and on the inner ring of a spring core (9), the high-pressure gas cavity (13) is communicated with a transmitting tube (14), an I-shaped blasting plug (16) is arranged in the transmitting tube (14), a blasting hole (15) is formed in the front end of the transmitting tube (14), a firing pin (17) is arranged at a proper position right above the axis of the gas cylinder sealing cover (12), the firing pin (17) is abutted by a firing pin clamping ring (18) on the bullet core (9), an explosion-expanding medicine box (19) is arranged right above the firing pin (17), an explosion-expanding medicine (20) is arranged in the explosion-expanding medicine box (19), the lower part of the needling delay ignition tube (21) is inserted into the explosion-expanding medicine box (19), the firing pin (22) is riveted at the axis of the lower end surface of the top cover (23), and the inner side of the bullet shell (24) abuts against the outer side of the bullet core (9) and is integrally processed with the bullet body base (1); the I-shaped explosion plug (16) comprises an explosion plug rear end ring (16-1), an explosion plug supporting rod (16-2) and an explosion plug front end ring (16-3), wherein the explosion plug rear end ring (16-1) and the explosion plug front end ring (16-3) are made of polyethylene foam, and the explosion plug supporting rod (16-2) is made of hard rubber; under the action of high-pressure nitrogen, the rear end ring (16-1) of the explosion plug and the front end ring (16-3) of the explosion plug are stressed to move and deform rapidly, when the front end ring (16-3) of the explosion plug is used for punching the explosion hole (15), the rear end ring (16-1) of the explosion plug is used for carrying out primary explosion, when the rear end ring (16-1) of the explosion plug is used for punching the explosion hole (15), the two-time explosion is used for carrying out secondary explosion, the sound intensity of the secondary explosion is higher than that of the primary explosion, and the I-shaped explosion plug (16) punched by the secondary explosion has a certain kinetic energy striking effect on a target; the firing pin (17) comprises a firing pin cap (17-1), an upper firing pin shaft (17-2), a firing pin one-way blocking ring (17-3), a lower firing pin shaft (17-4) and a firing pin tip (17-5), wherein the firing pin cap (17-1) is acted by high-pressure high-temperature gas generated by combustion of the explosion expanding medicine (20) to move downwards, the firing pin one-way blocking ring (17-3) is forced to punch through a firing pin clamping ring (18) so as to drive the firing pin tip (17-5) to punch a gas cylinder sealing cover (12), the length of the upper firing pin shaft (17-2) is larger than the height of the firing pin clamping ring (18), the length of the lower firing pin shaft (17-4) is larger than the height of the gas cylinder sealing cover (12), and the firing pin one-way blocking ring (17-3) is acted by the firing pin clamping ring (18) after the gas cylinder sealing cover (12) is broken, so that the firing pin (17) can be prevented from moving upwards and has a certain sealing effect on the high-pressure gas cylinder (13).

2. A multiple-shot knock bomb according to claim 1, wherein: the elastomer base (1), the elastomer core (9), the top cover (23) and the elastomer shell (24) are made of stainless steel materials; the top cover (23) is connected with the shell (24) through shearing threads, so that the impact force of the striking pin (22) on the needling delay ignition tube (21) is ensured, and the smooth shearing damage is ensured, thereby ensuring that the core (9) is smoothly pushed out.

3. A multiple-shot knock bomb according to claim 1, wherein: the bullet core bottom plate (8) and the screw-in type gas cylinder fixing seat (10) are made of high-temperature resistant materials, so that ablation of the bullet core (9) and the high-pressure gas cylinder (11) by high-temperature high-pressure gunpowder gas generated by combustion of the propellant powder (5) can be effectively isolated.

4. A multiple-shot knock bomb according to claim 1, wherein: the gas cylinder sealing cover (12) is made of fragile materials, and can be smoothly broken by the firing pin (17) while ensuring the tightness.

5. A multiple-shot knock bomb according to claim 1, wherein: the transmitting tube (14) comprises a transmitting tube tail tube (14-1) at the rear end, and the transmitting tube tail tube (14-1) is communicated with the high-pressure gas cavity (13); the explosion hole (15) comprises a cross screwing screw hole (15-1) and screwing threads (15-2) matched with the bullet core (9), and the explosion hole (15) is screwed and fixed after the I-shaped explosion plug (16) is installed.

6. A multiple-shot knock bomb according to claim 1, wherein: the bullet core (9) is internally provided with 4-6 groups of combinations of the transmitting pipes (14), the blasting holes (15) and the I-shaped blasting plugs (16), the combinations are distributed in a circumferential array along the axis of the bullet core (9), and each combination comprises 6-8 transmitting pipes (14), the blasting holes (15) and the I-shaped blasting plugs (16).

7. A multiple-shot knock bomb according to claim 1, wherein: the needling delay ignition tube (21) is clamped in a cylindrical hole at the top of the bullet core (9), and cannot accidentally fall off in the process of inverting or falling of the whole bullet, and the delay time of the needling delay ignition tube (21) is 2-2.5 s.

8. A multiple-shot knock bomb according to claim 1, wherein: the firing pin (22) is riveted with the top cover (23) into a whole, and the axis of the firing pin (22) coincides with the axis of the needling delay ignition tube (21).