RU162667U1 - EXPLOSION MEANS - Google Patents

Abstract

1. An explosive device comprising a sleeve, a detonator capsule, a moderator, a plug with an igniter capsule, a spring-loaded striker, a cover, characterized in that it further comprises a ball, an overlay and a thread configured to hold the striker in the cocked position, with one end of the thread held by its turns, and the other is fixed in the lid, while the moderator is fixed inside the sleeve and is made in the form of a cylinder with annular grooves filled with a retarding composition. 2. The blasting device according to claim 1, characterized in that two or more moderators are fixed inside the liner. 3. The blasting device according to claim 1, characterized in that it further comprises gaskets and is sealed.

Description

This utility model relates to the field of blasting and is intended to initiate explosive charges after a predetermined period of time.

The prior art is known detonating device with a delay (see patent for invention RU 2367888 C1, published September 20, 2009). The device includes a sleeve in which the main charge of the blasting explosive is sequentially placed, a sleeve with a through hole for accommodating the combustion converter in detonation based on the blasting explosive, an insert with a retarding composition and an igniter. An incendiary compound is placed between the igniter and the insert, and a diaphragm is installed between the insert and the sleeve with a through two-stage hole filled with the igniter composition and facing a smaller diameter towards the insert. The insert with a retarding composition is made in the form of a steel tube with flanges at the ends, ensuring the formation of an annular cavity between the inner wall of the sleeve and the outer wall of the tube, while a guaranteed clearance is formed between the flanges and the sleeve.

Known detonating device with a delay is initiated by supplying a current pulse to the igniter, for the operation of the detonating device requires a blasting machine that will provide an initiating current pulse. In addition, the detonation device is not safe, since there is a possibility of spontaneous guidance of the initiating current pulse and, consequently, the operation of the detonating device.

The prior art also known manual anti-tank mine (see patent for the invention RU 2413925 C1, published 03/10/2011), which disclosed a manual trigger device containing a trigger mechanism in the form of a sleeve with an igniter capsule, a spring loaded projectile held in a vehicle position with the ball, and the ball itself with a cover plate and a flexible pin tightly wrapped around it in the form of a kapron thread, one end of which is held by its turns placed on it inside the sleeve, and the second is mounted on a sealing transport cap Achke.

The described trigger device eliminates the disadvantages of the above blasting means.

Also known from the prior art incendiary tube ZTP-50, taken as a prototype (see. Veremeev Yu.G. "Subversive charges and means of detonation of the Soviet (Russian) Army", part 7b "Means for fire method of blasting" / [Electronic resource], - Access mode: http://www.saper.etel.ru/mines-4/RA-BB-08.html (accessed: 01/25/2016)), designed to initiate the charge of a blasting explosive 50 seconds after actuation. It contains an igniter device, into which a piece of a fire-resistant cord is pressed and crimped, a detonator capsule integrated into a metal nipple with an external thread. The second end of the fire-resistant cord is inserted and crimped into the same nipple. The presence of a threaded nipple provides a reliable connection of the incendiary tube with TNT blocks, as well as with standard explosive charges of industrial manufacture.

The blast igniter device, which is used in incendiary tubes of the ZTP series, consists of a bakelite case fixed in a brass tube case, a tablet of a pyrotechnic composition with a wire grater rolled through a longitudinal hole through it. A nylon thread is attached to the grater loop. The second end of the thread is threaded into the hole of the exhaust head. The exhaust head is threaded and screwed into the housing, also having a thread. A flame-retardant cord is inserted and crimped into the opposite end of the brass tube.

To use the ZTP-50 with a flow igniter, it is necessary to unscrew the exhaust head and, holding the left hand by the housing, sharply pull the exhaust head in the longitudinal direction. The straightening wire during movement, exerting friction on the tablet, will cause a flash of flame in it, from which the fire-resistant cord will ignite.

The disadvantages of the prototype are as follows:

- large mass and dimensions;

- low accuracy of the deceleration time.

The objective of this utility model is to create a means of detonation, devoid of the above disadvantages.

The utility model provides the following technical results:

- safe and reliable initiation of explosives with a set delay time;

- a decrease in the mass-dimensional characteristics of the explosive;

- increase in deceleration time and its accuracy;

- providing the ability to mask explosives.

The blasting means comprises a sleeve, a detonator capsule, a moderator, a plug with an igniter capsule, a spring-loaded striker, and a cover. Additionally, it contains a ball, an overlay and a thread made with the possibility of holding the striker in the cocked position, one end of the thread being held by its turns and the other fixed in the lid, while the moderator is fixed inside the sleeve and made in the form of a cylinder with annular grooves filled with a retardant composition.

Depending on the required deceleration time, one or more moderator is installed in the explosive.

There is the possibility of additional installation of gaskets that allow the blasting tool to be airtight.

This allows you to safely and reliably initiate an explosive with a set deceleration time, increase the accuracy of the deceleration time, reduce the mass and dimensions of the blasting means, increase the slowdown time, and make it possible to mask the blasting means.

The design of the blasting means is illustrated in the drawing (Fig. 1), which shows a General view in section.

The blasting device (Fig. 1) contains a sleeve (1), a detonator capsule (2), a moderator (3), a sleeve (4) with an igniter capsule (5), a spring-loaded striker (6), a cover (7). Additionally, it contains a ball (8), an overlay (9) and a thread (10), made with the possibility of holding the striker (6) in the cocked position, one end of the thread (10) being held by its turns, and the other fixed in the lid (7), this moderator (3) is fixed inside the sleeve (1) and is made in the form of a cylinder with annular grooves filled with a retarder.

Depending on the required deceleration time, one or more moderator (3) is installed in the blasting device (Fig. 1).

There is the possibility of additional installation of gaskets (11), which allow the blasting tool to be airtight.

The means of blasting are as follows.

The sleeve (1) is inserted into the socket of the explosive charge installed on the object. The cover (7) with the end of the thread (10) fixed inside it is unscrewed, and the thread (10) is pulled in an arbitrary direction. There is an opportunity to disguise the explosive. After complete removal of the thread (10), under the action of the ball (8), the overlay (9) is discarded. The spring-loaded striker (6) is released and pierces the igniter capsule (5). The force of fire from the operation of the igniter capsule (5) ignites the moderator (3). After burning of the moderator (3), the detonator capsule (2) and the explosive charge are triggered.

Claims (3)

1. An explosive device comprising a sleeve, a detonator capsule, a moderator, a plug with an igniter capsule, a spring-loaded striker, a cover, characterized in that it further comprises a ball, an overlay and a thread configured to hold the striker in the cocked position, with one end of the thread it is held by turns, and the other is fixed in the lid, while the moderator is fixed inside the liner and is made in the form of a cylinder with annular grooves filled with a delay composition. 2. The blasting device according to claim 1, characterized in that two or more moderators are fixed inside the liner. 3. The blasting device according to claim 1, characterized in that it further comprises gaskets and is sealed.

Images