RU195590U1 - 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 result is achieved: the compactness of the device and the reliability of the system as a whole, while ensuring versatility. 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, the axial channel has walls, and an igniter composition is located in the axial channel, which is pressed into the channel. The axial channel is made with the possibility of receiving a mechanical impulse of shock-grater type. 6 c.p. 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 initiate explosive conversion (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 initiate 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 impulse. Devices consisting of an incendiary capsule igniter and a percussion device are called mechanical igniters, and including a capsule igniter and a grating 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 igniter 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 the 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, comprising a housing in which a through axial channel is made, the axial channel has walls, and an igniter composition is located in the axial channel, which is pressed into 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 compactness of the device and the reliability of the system as a whole, while ensuring universality.

The technical result is achieved by a means of initiating ignition, comprising a housing in which a through axial channel is made, the axial channel has walls, an igniter composition is located in the axial channel, which is pressed into the channel, characterized in that the axial channel is adapted to receive a mechanical impulse of impact-shock type .

In some embodiments, the inner surface of the channel walls is smooth or rough; a flange is made along the perimeter of the upper hole 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 initiation means 1 has a through axial tapering channel 2, in which the igniter composition 3, which is pressed into the channel, is located. 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 means for initiating ignition works 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 using an example of a grater action device, for example, a pyrotechnic product.

To actuate a device made with a grater element, an elongated flexible or solid element, for example, cord 5, is sharply extended over the free part. In this case, the opposite part, which can be equipped with an additional grater element, for example, unit 6, during movement exerts friction on the composition in channel 2, leading to ignition.

At the moment the grater element passes through the igniter channel 2, it exerts a direct impact-grater effect on the igniter composition 3 and forms a force of fire, which, after 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 allows to increase the reliability of operation and the universality of the device, which makes it possible to unify the means of initiation for working with various explosive and pyrotechnic devices and igniter compositions.

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. US 3707917, 01/02/1973.

Claims (7)

1. A means of initiating ignition, comprising a housing in which a through axial channel is made, the axial channel has walls, an igniter composition is located in the axial channel, which is pressed into the channel, characterized in that the axial channel is configured to receive a mechanical impulse of shock-grater type. 2. The initiation tool according to claim 1, characterized in that the inner surface of the walls of the channel is made smooth. 3. The initiation tool according to claim 1, characterized in that the inner surface of the channel walls 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 a through slot is made in it. 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.

Images