CN210426280U

CN210426280U - Safety type ignition mechanism for hand-throwing antiriot ammunition

Info

Publication number: CN210426280U
Application number: CN201921022028.XU
Authority: CN
Inventors: 马永忠; 汪送
Original assignee: Engineering University of Chinese Peoples Armed Police Force
Current assignee: Engineering University of Chinese Peoples Armed Police Force
Priority date: 2019-06-26
Filing date: 2019-06-26
Publication date: 2020-04-28
Anticipated expiration: 2029-06-26

Abstract

The utility model discloses a hand-thrown anti-riot bomb safety type ignition mechanism, which comprises a percussion seat, a percussion plate, a percussion needle shaft, a torsion spring, a first-stage separation ignition tube and a connecting seat, wherein the first-stage separation ignition tube comprises an ignition part, a delay body and a fire spraying hole, the thread is connected in the percussion seat, the ABS plastic delay tube delay powder packaging technology is adopted, four functions of ignition, delay, separation and ignition can be completed, the reliable separation and ignition of a lower bomb body are completed after the delay is 3-4s, the connecting seat comprises a connecting thread, a shearing thread and a reinforcing rib, the percussion seat and the connecting seat are fixedly connected through the connecting thread, the connecting seat and the lower bomb body are connected through the shearing thread, the ignition mechanism can realize the effective throwing-off of the percussion seat before the bomb body explodes, therefore, excessive injury accidents caused by the percussion seat firing can not occur near the percussion point, meanwhile, the ABS plastic delay tube is adopted, so that the generation of metal fragments is greatly reduced, and the use safety of the hand-throwing anti-riot bomb is greatly improved.

Description

Safety type ignition mechanism for hand-throwing antiriot ammunition

Technical Field

The utility model relates to an anti-riot bullet technical field specifically is a hand is thrown anti-riot bullet safety type mechanism of starting a fire.

Background

The hand-thrown anti-riot bomb plays an important role in tasks such as duty, outburst treatment, counter terrorism and the like in military forces, armed police and public security, and the installation and release modes of the hand-thrown anti-riot bomb can be divided into a combustion type and an explosion type, wherein the hand-thrown explosion type anti-riot bomb has a large number of fragments (ABS alloy) after explosion, the fragments have poor shapes, particularly, a percussion seat made of metal materials cannot be broken during explosion, the whole shooting of parts of the percussion seat is easy to occur, and the probability of hitting a living target is low, but excessive killing is easy to cause after hitting, so that the design of the ignition mechanism which can realize effective throwing-off of the percussion seat and has less metal fragments is necessary for improving the use safety of the hand-thrown anti-riot bomb.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mechanism is fired to anti-riot bullet safety type of hand-throwing to the easy lasering of percussion seat, the many problems of metal fragment that provide among the above-mentioned background art of solution.

In order to achieve the above object, the utility model provides a following technical scheme: a hand-thrown anti-riot bomb safety type ignition mechanism comprises an ignition seat, an ignition plate, an ignition needle shaft, a torsion spring, a first-stage separation ignition tube, an ignition piece, a delay body, an ignition hole, a connecting seat, a connecting thread, a shearing thread and a reinforcing rib; the method is characterized in that: the firing seat is fixedly connected with the connecting seat through a connecting thread, a firing pin is riveted on the firing needle plate, the firing pin is limited by a safety pin of the hand-thrown anti-riot bomb to be in a turning state and compress a torsion spring, a firing pin shaft penetrates through the firing seat and the torsion spring, the firing pin shaft is a rotating shaft for turning the firing pin under stress, the first-stage separation ignition tube is in threaded connection inside the firing seat and comprises an ignition piece, a delay body and a fire spraying hole, the connecting seat comprises a connecting thread, a shearing thread and a reinforcing rib, the shearing thread connects the connecting seat with a lower bomb body of the hand-thrown anti-riot bomb, and the reinforcing rib is positioned on the outer side of the lower end part of the connecting seat.

Preferably, after the firing pin is released and turned in place, the firing pin tip of the firing pin just strikes the center of the head of the primary separation igniter tube and pierces the primary separation igniter tube.

Preferably, the first-stage separation ignition tube adopts an ABS plastic delay tube delay powder packaging technology to complete four functions of ignition, delay, separation and ignition, the first-stage separation ignition tube adopts a process of combining an ignition piece and a delay body, base-doped rose fine acrylic varnish is coated at a combination part and a combination seam at the bottom for sealing, the delay time of the delay body is 3-4s, 80-100mg of single-base powder is arranged on the upper side of the fire spraying hole, high-temperature and high-pressure gas generated by combustion of the single-base powder is used for separating and igniting a lower projectile body, and the fire spraying hole is sealed by the brilliant green acrylic varnish.

Preferably, the connecting seat is formed by injection molding of PE plastic, epoxy resin glue is coated at the connecting thread, and the connecting seat is used after being screwed and cured for 24 hours.

Preferably, the connecting thread and the shearing thread both adopt 1.5mm standard thread pitches, the connecting length of the connecting thread and the firing seat is 8mm, and the connecting length of the shearing thread and the lower projectile body is 3 mm.

Preferably, the number of the reinforcing ribs is 8, and the 8 reinforcing ribs are distributed in a circumferential array along the central axis of the connecting seat.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model realizes the reliable separation of the connecting seat and the lower projectile body before explosion through the shearing and separating technology of the firing seat, and eliminates the generation of broken pieces of the firing seat;

2. the utility model discloses the ABS plastics delay tube delay powder packaging technology has creatively developed, has effectively eliminated the killing fragment of metal in the explosive body, has realized the fatal effect of good non-.

Drawings

Fig. 1 is a schematic structural view of a hand-throwing antiriot bomb safety type ignition mechanism of the utility model;

fig. 2 is a schematic structural view of a one-stage separation ignition tube 6 of a safety type ignition mechanism of a hand-throwing antiriot ammunition of the utility model;

fig. 3 is a schematic structural view of a hand-throwing anti-riot bomb safety type ignition mechanism connecting seat 7 of the utility model;

fig. 4 is a schematic distribution diagram of the reinforcing ribs 7-3 of the safety type ignition mechanism of the hand-throwing antiriot ammunition of the utility model.

In the figure: 1. the firing mechanism comprises a firing seat, 2 parts of a firing pin plate, 3 parts of a firing pin, 4 parts of a firing pin shaft, 5 parts of a torsion spring, 6 parts of a first-stage separation ignition tube, 6-1 parts of a firing part, 6-2 parts of a delay body, 6-3 parts of a flaming hole, 7 parts of a connecting seat, 7-1 parts of a connecting thread, 7-2 parts of a shearing thread, 7-3 parts of a reinforcing rib.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a hand-thrown anti-riot bomb safety type ignition mechanism comprises an ignition seat 1, a firing pin plate 2, a firing pin 3, a firing pin shaft 4, a torsion spring 5, a primary separation ignition tube 6, an ignition piece 6-1, a delay body 6-2, a fire spraying hole 6-3, a connecting seat 7, a connecting thread 7-1, a shearing thread 7-2 and a reinforcing rib 7-3; the method is characterized in that: the percussion seat 1 is fixedly connected with a connecting seat 7 through a connecting thread 7-1, the striker plate 2 is riveted with a striker 3, the firing pin 3 is limited by a safety pin of the hand-throwing anti-riot bomb to be in a turning state and compress the torsion spring 5, the firing pin shaft 4 penetrates through the firing seat 1 and the torsion spring 5, the firing pin shaft 4 is a rotating shaft for the firing pin 3 to be forced to turn over, the first-stage separation ignition tube 6 is connected in the firing seat 1 in a threaded manner, the first-stage separation ignition tube 6 comprises an ignition piece 6-1, a delay body 6-2 and a flame-projecting hole 6-3, the coupling seat 7 comprises a coupling thread 7-1, a shearing thread 7-2 and a reinforcing rib 7-3, the shear thread 7-2 connects the connecting seat 7 with the lower projectile body of the hand-throwing antiriot projectile, and the reinforcing rib 7-3 is positioned at the outer side of the lower end part of the connecting seat 7.

As shown in fig. 1, after the firing pin 3 is released and turned over to the right position, the firing pin tip of the firing pin 3 just strikes the center of the head of the primary separation squib 6 and pierces the primary separation squib 6.

With reference to fig. 1 and 2, the first-stage separation ignition tube 6 adopts an ABS plastic delay tube delay powder packaging technology to complete four functions of ignition, delay, separation and ignition, the first-stage separation ignition tube 6 adopts a process of tightly combining an ignition piece 6-1 and a delay body 6-2, base-doped rose essence acrylic varnish is coated at a combination part and a combination seam at the bottom for sealing, the delay time of the delay body 6-2 is 3-4s, 80-100mg of single-base powder is filled on the upper side of the fire spraying hole 6-3, the single-base powder is combusted to generate high-temperature and high-pressure gas for separating and igniting a lower projectile body, and the fire spraying hole 6-3 is sealed by the clear green acrylic varnish.

In this embodiment, the charge structure of the first-stage separation igniter tube 6 is designed as follows: the powder is filled from the bottom of the tube shell, and the single-base powder, the boron series delay powder, the delay rope, the special delay powder and the boron series delay powder are sequentially filled.

In the embodiment, the charge of the primary separated igniter tube 6 is common charge of igniter tubes of various systems, cold-rolled steel strips for igniter tube shells, aluminum strips for reinforcing caps, lead-antimony alloy tubes for delay cables and tin foils for cover plates are adopted in various initiating explosive devices, and after years of use, the compatibility among medicaments and between medicaments is proved to be good, and the requirements of long-term storage and use of products can be met.

Referring to fig. 1 and 3, the connecting base 7 is made of PE plastic by injection molding, and the connecting thread 7-1 is coated with epoxy resin glue and is screwed and cured for 24 hours.

In the embodiment, the connecting thread 7-1 and the shearing thread 7-2 both adopt 1.5mm standard thread pitches, the connecting length of the connecting thread 7-1 and the firing seat 1 is 8mm, and the connecting length of the shearing thread 7-2 and the lower projectile body is 3 mm.

As shown in fig. 4, the number of the reinforcing ribs 7-3 is 8, the 8 reinforcing ribs 7-3 are distributed in a circumferential array along the central axis of the coupling seat 7, and the reinforcing ribs 7-3 can improve the strength and rigidity of the coupling seat 7 on the premise of not increasing the thickness of the coupling seat 7, so as to save the plastic consumption, and overcome the distortion and deformation of the coupling seat 7 caused by uneven stress due to the thickness difference of the wall of the coupling seat 7, thereby affecting the reliable separation of the coupling seat 7 and the lower elastic body.

The action principle is as follows:

after a safety pin of the hand-thrown anti-riot bomb is pulled out and thrown, under the action of a torsion spring 5, a firing needle plate 2 overturns, a firing pin 3 pierces a primary separating ignition tube 6, after 3-4 seconds of delay, the primary separating ignition tube 6 fires to generate high-temperature and high-pressure gunpowder gas, the shearing thread 7-2 at the position of a connecting seat 7 and a lower bomb body is sheared and damaged along with the increase of the gunpowder gas pressure in the connecting seat 7, the lower bomb body is ignited while the lower bomb body is thrown, and the effective throwing of the firing seat 1 is realized before the lower bomb body explodes, so that the probability of accidental injury caused by firing of the firing seat 1 is avoided.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A hand-thrown anti-riot bomb safety type ignition mechanism comprises an ignition seat (1), an ignition needle plate (2), an ignition needle (3), an ignition needle shaft (4), a torsion spring (5), a primary separating ignition tube (6), an ignition piece (6-1), a delay body (6-2), a fire spraying hole (6-3), a connecting seat (7), a connecting thread (7-1), a shearing thread (7-2) and a reinforcing rib (7-3); the method is characterized in that: the percussion seat (1) is fixedly connected with a connecting seat (7) through a connecting thread (7-1), a striker (3) is riveted on the striker plate (2), the striker (3) is limited by a hand-thrown anti-riot bomb safety pin to be in a turnover state and compress a torsion spring (5), a striker shaft (4) penetrates through the percussion seat (1) and the torsion spring (5), the striker shaft (4) is a rotating shaft for the striker (3) to be overturned under stress, a primary separation ignition tube (6) is in threaded connection with the inside of the percussion seat (1), the primary separation ignition tube (6) comprises an ignition piece (6-1), a delay body (6-2) and a fire spraying hole (6-3), the connecting seat (7) comprises a connecting thread (7-1), a shearing thread (7-2) and a reinforcing rib (7-3), and the shearing thread (7-2) connects the connecting seat (7) with a lower bomb body of the hand-thrown anti-riot bomb, the reinforcing ribs (7-3) are positioned outside the lower end part of the connecting seat (7).

2. The safety type fire mechanism for a manual-throwing antiriot bomb according to claim 1, wherein: after the firing pin (3) is released and overturned in place, the firing pin point of the firing pin (3) just strikes the center of the head of the primary separation ignition tube (6) and pierces the primary separation ignition tube (6).

3. The safety type fire mechanism for a manual-throwing antiriot bomb according to claim 1, wherein: the primary separating ignition tube (6) adopts an ABS plastic delay tube delay powder packaging technology to complete four functions of ignition, delay, separation and ignition, the primary separating ignition tube (6) adopts a process of tightly combining an ignition piece (6-1) and a delay body (6-2), base-doped rose essence acrylic varnish is coated at a combination part and a combination seam at the bottom for sealing, the delay time of the delay body (6-2) is 3-4s, 80-100mg of single base powder is arranged on the upper side of a fire spraying hole (6-3), the single base powder is combusted to generate high-temperature high-pressure gas for separating and igniting a lower projectile body, and the fire spraying hole (6-3) is sealed by the clear green acrylic varnish.

4. The safety type fire mechanism for a manual-throwing antiriot bomb according to claim 1, wherein: the connecting seat (7) is formed by injection molding of PE plastic, epoxy resin glue is coated at the connecting thread (7-1), and the connecting seat is used after being screwed, cured and cured for 24 hours.

5. The safety type fire mechanism for a manual-throwing antiriot bomb according to claim 1, wherein: the connecting thread (7-1) and the shearing thread (7-2) both adopt a standard thread pitch of 1.5mm, the connecting length of the connecting thread (7-1) and the firing seat (1) is 8mm, and the connecting length of the shearing thread (7-2) and the lower projectile body is 3 mm.

6. The safety type fire mechanism for a manual-throwing antiriot bomb according to claim 1, wherein: the number of the reinforcing ribs (7-3) is 8, and the 8 reinforcing ribs (7-3) are distributed in a circumferential array along the central axis of the connecting seat (7).