RU194597U1 - Ignition initiator - Google Patents

Abstract

The utility model relates to non-electric means of initiation, converting the initial mechanical impulse into a fire force or exciting explosive transformation, which can be used to initiate explosive devices, ammunition or pyrotechnic products for various purposes, that is, any means involving authorized undermining or ignition. When using the utility model, the following technical results are achieved: universality; stable work; reliability of the system as a whole; compactness of the device; security; high shelf life; tightness. The technical result is achieved by means of initiating ignition, characterized in that it contains a housing in which a through axial channel is made with the possibility of receiving a mechanical impulse of shock-and-gravel type, the axial channel has walls, and an igniter composition is located in the axial channel, characterized in that the igniter composition is placed in the axial channel using a combination of several methods: applying to the walls of the through channel, pressing in the channel, arranging in the form of a droplet initiating about the substance at the mouth of the canal. 6 zp f-ly, 1 ill.

Description

The utility model relates to non-electric means of initiation, converting the initial mechanical impulse into a fire force or exciting explosive transformation, which can be used to initiate explosive devices, ammunition, shells or pyrotechnic products for various purposes, that is, any means involving authorized blasting or ignition.

Means of initiation are devices and devices operating from simple initial impulses to excite the explosive transformation (ignition or detonation) of gunpowder or explosives (PF Bubnov, IP Sukhov Initiation means, Moscow, OBORONGIZ, 1945, p. 4 )

The traditional means of initiation intended to ignite or excite detonation of explosives are igniter capsules used in capsule sleeves or shock ignition tubes, tube igniter capsules, exhaust tubes, detonator capsules. These funds are triggered by a mechanical, such as shock, puncture or grater pulse.

Devices consisting of an incendiary capsule igniter and a shock device are called mechanical igniters, and including a capsule igniter and a grater device - grater ignitors.

The term "igniter" in the materials of this application is intended to mean any device that performs the function of ignition in pyrotechnic or explosive devices.

In shock igniters, an igniter capsule or a detonator capsule is conventionally used as an initiating element. As a rule, capsules are placed in close proximity to the charge of an explosive or pyrotechnic substance [1] or at a certain distance from the charge (through an axial fire-transfer channel) [2, 3].

In grate type fuses, grate igniter caps are used, in which the start is carried out by moving a special part (grater) in the ignition composition [4, 5] or in the grate ignition unit with a stop retarder due to pulling out the cord [6].

Practice shows that fuses with grater capsules most often use a composition with red phosphorus, according to which, significant efforts and metal elements are not required in the design of the igniter. Red phosphorus fuses are not reliable, overly sensitive, hygroscopic and unsafe. Due to their low sensitivity, fused ignitors that do not contain phosphorus compounds require the use of metal actuation units and considerable efforts during initiation. Such fuses have a limited storage life due to the hygroscopicity of the compositions used and the corrosion of metal elements.

The implementation of the means of initiation individually, depending on their purpose. Even in the designs of igniters of the same type, the main functional elements may vary and not be interchangeable.

The closest analogue of the claimed utility model is a means of initiating ignition or detonation, containing a housing in which there is a through axial channel with walls, while in the axial channel there is an igniter composition, which is located in the form of a pyrotechnic (initiating) substance at the mouth of the channel [7].

The task to which the present utility model is directed is to obtain a safe, reliably functioning and compact initiator suitable for initiating a wide range of explosive and pyrotechnic means.

When using the utility model, the following technical result is achieved: the reliability of the system as a whole.

The technical result is achieved by a means of initiating ignition, comprising a housing in which a through axial channel is made with the possibility of receiving a mechanical impulse of shock-and-throw type, the axial channel has walls, an igniter composition is located in the axial channel, characterized in that the igniter composition is placed in the axial channel using a combination of several methods: applying to the walls of the through channel and the location in the form of a drop of initiating substance at the mouth of the channel.

In some embodiments, the inner surface of the channel walls is smooth or rough; a flange is made along the perimeter of the upper opening of the channel; in the means of initiation, a through slot is made; from the side receiving the initial impulse, the initiation means is sealed; initiation means is made of a polymeric material.

In FIG. 1 shows a sectional view of an ignition initiator.

The initiating means 1 has a through axial tapering channel 2, in which the igniter composition 3 is located, which is placed in the axial channel using a combination of several methods: applying a through channel to the walls of the through channel and arranging a drop of initiating substance at the mouth of the channel. A flange 4 is made along the perimeter of the upper opening of the channel. In this case, the axial channel 2 is made with the possibility of receiving a mechanical impulse of the shock-grater type, for example, from a node 6 fixed to the cord 5.

The ignition initiator operates as follows.

The initiating means is installed in an explosive device or pyrotechnic product or it is first connected to a charging flask, and then the resulting structure is placed in a device or product. A subsequent implementation is disclosed by the example of a grater action device, for example, a pyrotechnic product.

To actuate a device made with a grating element, an elongated flexible or solid element, for example, cord 5 is sharply stretched for the free part. At the same time, the opposite part, which can be equipped with an additional grater element, for example, unit 6, during friction exerts friction on the composition in channel 2, leading to ignition.

At the moment of passage of the grater element through the igniter channel 2, it exerts a direct impact-grater effect on the igniter composition 3 and forms a force of fire, which, passing through the igniter through channel, ignites.

The execution of the axial channel 2 with the possibility of receiving a mechanical impulse of the shock-grater type, as well as the placement of the igniter composition in the axial channel using a combination of several methods: applying to the walls of the through channel and arranging a drop of initiating substance at the mouth of the channel, improves the reliability of operation and versatility devices, which makes it possible to unify the means of initiation for working with various explosive and pyrotechnic devices and igniters you.

In the case of using the initiating means in accordance with the utility model, it does not take much effort to create an initial (shock or grater) impulse. However, such an effect is sufficient to cause strong near-wall friction, which forms stable combustion.

The utility model provides high functional reliability, accuracy, has compactness and simplicity.

The production of the proposed product is as technologically and safely as possible.

The reliability of the means of initiation is associated with the guaranteed receipt of an igniter pulse in any conditions of its application. Its versatility makes it possible to use in initiators and devices a wide range of various action principles and power characteristics. Depending on the initiation method and the composition used, using the claimed means, it is possible to equally efficiently initiate combustion (e.g., powder or pyrotechnic charge), smoldering (e.g., smoke generating device), explosion (e.g., explosive or pyrotechnic device). The proposed means of initiation is simple and economical in production and does not require special skills when handling it.

Sources of information:

1 - RU 111908 U1, F42B8 / 26, 12/27/2011;

2 - RU 101539 U1, F42C19 / 08, 01.20.2011;

3 - RU 2473868 C2, F42C14 / 02, 01/27/2013;

4 - US 3194161 A, F42B8 / 26, 1965;

5 - DE 1081354 V, F42B8 / 26, 1960;

6 - GB 904348 A, F42C15 / 32, 08/29/1962.

7 - RU 2115448, 07.20.1998.

Claims (7)

1. The means of initiation of ignition, comprising a housing in which a through axial channel is made with the possibility of receiving a mechanical impulse of shock-and-shock type, the axial channel has walls, an igniter composition is located in the axial channel, characterized in that the ignition composition is placed in the axial channel using a combination several methods: applying to the walls of the through channel and the location in the form of a drop of initiating substance at the mouth of the channel. 2. The initiation tool according to claim 1, characterized in that the inner surface of the channel walls is made smooth. 3. The means of initiation according to claim 1, characterized in that the inner surface of the walls of the channel is made rough. 4. The initiation tool according to claim 1, characterized in that a flange is made along the perimeter of the upper opening of the channel. 5. The initiation tool according to claim 1, characterized in that it has a through slot. 6. The means of initiation according to claim 1, characterized in that from the side receiving the initial impulse, it is sealed. 7. The initiation tool according to claim 1, characterized in that it is made of a polymeric material.

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