RU2566453C2 - Pyrotechnic device - Google Patents

Abstract

FIELD: weapons and ammunition.

SUBSTANCE: invention relates to a pyrotechnic device. The pyrotechnic device comprises a base of non-combustible material, a protective dome, a holder of pyrotechnic products and a controlled igniting means. The protective dome is made of transparent non-combustible material and mounted on the base. The holder of pyrotechnic products is mounted on the base in the cavity under the said protective dome and is made with the ability to retain the pyrotechnic product. The controlled igniting means is made with the ability to ignite the said pyrotechnic product.

EFFECT: increased safety is achieved when using pyrotechnic products.

10 cl, 1 dwg

Description

FIELD OF THE INVENTION

The present invention relates to a miniature pyrotechnic device intended for indoor use.

State of the art

Pyrotechnic devices, such as fireworks, fire wheels, Roman candles, etc., are widely used for decoration of various festive events. Moreover, the nomenclature of such devices is very large and allows you to arrange large-scale fire extravaganzas such as well-known holiday fireworks, and local festivities like fire fountains or Bengal candles on New Year trees.

For such local events, appropriate means are used. So, there is a known method of manufacturing a pyrotechnic product (RF patent No. 2375669, publ. 10.12.2009), according to which the pyrotechnic composition is placed in a recess made in the figure applied to a non-combustible base. A similar device is described in the patent for utility model of China No. 200968823 (published on October 31, 2007), where holes are made in an opaque wall (for example, in the form of a smiling face) that glow when the charge located behind the wall is burned. Such products can also be used indoors, but, of course, the possibilities of obtaining various pyrotechnic effects are very limited, and in addition, when using such products, serious fire safety measures must be observed.

Known folding fireworks for home use (German application No. 10232222, publ. 06.03.2003), the design of which allows you to install on it different pyrotechnic devices such as fire fountains or Bengal candles. A similar device is described in the patent for utility model of China No. 202104690 (publ. 11.01.2012). With the help of these devices it is possible to carry out pyrotechnic effects of a wider range, but just like in the above cases, compliance with fire safety measures is required.

Disclosure of invention

Thus, there is a need for such a tool for creating pyrotechnic effects, which would ensure safe use in any room and at the same time would not limit the variety of created pyrotechnic effects.

To solve this problem and achieve the specified technical result, the present invention proposes a pyrotechnic device comprising: a base of non-combustible material; a protective dome made of transparent non-combustible material mounted on the base; a pyrotechnic product holder mounted on a base in a cavity under the protective dome and configured to hold at least one pyrotechnic product; guided firing means configured to ignite a pyrotechnic product.

A feature of the device of the present invention is that the pyrotechnic product can be selected from the group including at least miniature fireworks, sparklers, a Roman candle, a Chinese wheel, a fire fountain.

Another feature of the device of the present invention is that it may further comprise a pump connected by a pipe to the cavity and configured to remove the combustion products of the pyrotechnic products from it without disturbing their combustion.

Another feature of the device of the present invention is that it may further comprise a pump connected by a pipe to the cavity and configured to pump an oxidizing agent into it.

Another feature of the device of the present invention is that the protective dome can be mounted on the base with the ability to seal the cavity. In this case, the cavity may be filled with a fluid designed to slow down the combustion or movement of pyrotechnic products.

Another feature of the device of the present invention is that the controlled firing means can be made in the form of a Bikford cord or an incandescent element connected to the corresponding power source through a switch.

Finally, another feature of the device of the present invention is that the protective dome can be made with a height of not less than 0.2 m and not more than 5 m.

Brief Description of the Drawing

The present invention is illustrated in the drawing, which shows an example implementation of the proposed device.

Detailed Description of Embodiments

The pyrotechnic device of the present invention contains a base 1 of non-combustible material, which can be used metal (for example, aluminum), fiberglass or any other non-combustible material. On the base 1 is installed a protective dome 2 made of transparent non-combustible material, which can be used unbreakable glass, mica or any other suitable material. The shape of the protective dome 2 can be any: in the form of a parallelepiped, as shown in the drawing, or in the form of a hemisphere, or in the form of a polyhedron, or any other kind.

On the basis of 1 in the cavity under the protective dome 2 is mounted a holder 3 of pyrotechnic products made with the ability to hold at least one pyrotechnic product (not shown). As such pyrotechnic products, you can use any pyrotechnic product from the group including, for example, miniature fireworks, sparklers, a Roman candle, a Chinese wheel, a fire fountain. It is understood that the miniature fireworks must be designed and constructed so that the height of their rise does not exceed the height of the protective dome 2, which for indoor use should preferably not exceed 5 m, although not limited to this value. Accordingly, other pyrotechnic products should also be such that the height and (or) the range of the lights they emit does not exceed the corresponding dimensions of the protective dome 2. For example, if the proposed device is intended to be used only with Bengal lights and Roman candles, then the height of the protective dome can even be reduced up to 0.2 m or less.

The specific implementation of the holder 3 is not included in the scope of the claims of this invention and is determined by those pyrotechnic products for the installation of which this holder 3 is intended. It can be a sparkler of a Bengal fire or a Roman candle, a stand for launching fireworks, a stand for installing a Chinese wheel, etc. As such a holder, for example, devices similar to those described in the aforementioned German application No. 10232222 and the utility model patent of China No. 202104690 can be used. Or it can be a simple wire structure for inserting appropriate pyrotechnic products into it.

The above-described pyrotechnic products, as is understood by specialists, may well be made on the basis of known technologies, for example, by reducing the weight of the powder charge in a firework or fire wheel or by choosing a more slowly burning composition. To ensure the safety of use in these pyrotechnic products, a special composition can be used, for example, such as described in the patent of the Russian Federation No. 2018507 (publ. 30.08.1994) or in the patent of the Russian Federation No. 2501777 (publ. 20.12.2013).

In the proposed device, the cavity under the protective dome 2 can optionally be filled with a fluid designed to slow down the combustion of pyrotechnic products. It can be, for example, a mixture of inert gas (nitrogen, helium, etc.) with oxygen in the appropriate proportion. The fluid may be designed to slow down the movement of pyrotechnic products, for example, such a fluid may be water, in which a firework rocket will move slower than in air.

The protective dome 2 in this case can be installed on the base 1 with the ability to seal the resulting cavity. For this purpose, between the protective dome 2 and the base 1, for example, an elastic gasket can be provided, and on the base 1 or on the protective dome 2 corresponding fastenings known to specialists are installed.

As shown in the drawing, the device further comprises a controllable firing means 4 configured to ignite a pyrotechnic product mounted on the holder 3. The specific implementation of the controlled firing means 4 may be different. In particular, it can be a Bickford cord stretched outside the protective dome 2 or inserted through the base 1. Or it can be an incandescent element connected to the corresponding power source through a switch located outside the protective dome 2. Any other possible implementation of the controlled firing means 4, which would provide ignition of the pyrotechnic product mounted on the holder 3 under the protective dome 2, is also possible.

The device of the present invention can be supplemented by a pump 5 connected by a pipe 6 to the cavity under the protective dome 2. This pump can be configured to remove the combustion products of the pyrotechnic products from the cavity without disturbing their combustion. Or, the pump 5 may be configured to pump an oxidizing agent into the cavity to maintain the combustion of the pyrotechnic products. In principle, it is possible to use two pumps, one of which will pump an oxidizing agent into the cavity, and the other will suck off the combustion products of pyrotechnic products. In this case, the cavity under the protective dome 2 can also be sealed using any suitable means, as mentioned above.

The operation of the proposed miniature pyrotechnic device is clear from the above description. Corresponding pyrotechnic products are installed in the holder 3 so that the controlled firing means 4 has the ability to initiate their firing. After that, a protective dome 2 is installed on the base 1 and the cavity under it is sealed, if provided by the design. If provided, the cavity under the protective dome 2 is filled with the appropriate fluid through the holes provided in the protective dome 2 or in the base 1. In the case of using the pump 5, it turns on, after which the pyrotechnic products are ignited using a controlled igniting means 4. If the design of the device uses pumps 5, they are turned on regardless of the moment when the ignition of pyrotechnic products is initiated using a controlled igniting means 4. In this case the order of ignition of pyrotechnic products can be any: simultaneously or alternately with the same or different (for example, random) delay, which is determined by the specific complements managed igniting means 4. For example, one may initially ignited or more Roman candles, then - Chinese wheel and terminate a miniature firework may launch one or more fireworks rockets. Or all pyrotechnic products can be ignited simultaneously. Or a miniature fireworks display may start with rockets, after which sparklers will be lit.

The use of the device of the present invention, thus, allows for local events indoors using pyrotechnic products without the risk of fire, while this device does not limit the range of possible pyrotechnic effects.

Claims (10)

1. Pyrotechnic device containing:
- base made of non-combustible material;
- a protective dome made of transparent non-combustible material mounted on said base;
- a holder of pyrotechnic products mounted on said base in a cavity under said protective dome and configured to hold at least one pyrotechnic product;
- controlled ignition means, configured to ignite said pyrotechnic product. 2. The device according to claim 1, in which said pyrotechnic product is selected from the group including at least fireworks, sparklers, a Roman candle, a Chinese wheel, a fire fountain. 3. The device according to claim 1 or 2, further comprising a pump connected by a pipeline to said cavity and configured to remove combustion products of said pyrotechnic products from said cavity without disturbing their combustion. 4. The device according to claim 1 or 2, further comprising a pump connected by a pipeline to said cavity and configured to pump an oxidizing agent into said cavity. 5. The device according to claim 1 or 2, wherein said protective dome is mounted on said base with the ability to seal said cavity. 6. The device according to claim 5, in which said cavity is filled with a fluid designed to slow down the combustion of said pyrotechnic products.      7. The device according to claim 5, in which said cavity is filled with a fluid designed to slow down the movement of said pyrotechnic products. 8. The device according to claim 1, in which the aforementioned controlled firing means is made in the form of a Bikford cord. 9. The device according to claim 1, in which the aforementioned controlled firing means is made in the form of an incandescent element connected to the corresponding power source through a switch. 10. The device according to claim 1, in which said protective dome is made not less than 0.2 m high and not more than 5 m high.