RU2533780C1 - Sound and light signalling device - Google Patents

Abstract

FIELD: physics.

SUBSTANCE: sound and light signalling device comprises an igniter capsule placed in a throttling sleeve. The sleeve is mounted on a cover which is provided with a sealing ring and directed on a block of sound stars, which is mounted in series with a block of channel light stars in a common tubular housing in the form of a cup, each channel light star adjoining a blow-off charge. The block of sound stars is separated by receivers from the throttling sleeve and the block of light stars, sealed at the bottom by a layer of mastic compound, wherein an ignition charge is placed in the lower receiver and a damping cushion is placed at the bottom of the housing.

EFFECT: providing functional reliability of the signalling device owing to guaranteed successive action of sound and light signals, which enables use thereof when concealed in the ground as a reactive information means of securing a perimeter of a closed territory from intrusion.

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Description

The invention relates to engineering devices, preferably landmines, for signaling by spreading gaseous substances obtained as a result of chemical reactions, and can be used as a security signaling means of closed territories.

The level of this technical field is characterized by a hand-held distress signal rocket described in patent SU 201165, 72d, 19/01 (IPC F07f), 1967, which contains a jet engine mounted with a gaseous ignition unit and a signal unit made of successively placed in the metal shell of several signal stars with a central channel, in each of which a moderator pressed into the cap is inserted.

Between the stars there is a powder blow-out charge and an obturating pad, and the signal stars are made of colored pyrotechnic composition.

The jet engine lifts the signal unit to a height of 400-500 m and is separated from it by a knockout charge, which simultaneously ignites the moderator of the first sprocket.

After 2.5-3.5 s, the moderator ignites the expelling charge under the first sprocket, which ejects it from the block shell and simultaneously ignites the moderator of the second sprocket.

In this sequence, all the stars placed in the envelope of the signal unit are triggered.

The duration of the signal from the start of burning of the first star to the end of burning of the last is 19-22 s, and the range of the signal is 30 km.

The disadvantage of the described light signaling device is its intended purpose, which excludes its use in the automatic standby mode, in a secretive position, deepened in the ground, as a security signaling means of the perimeter of closed territories.

The noted drawback is eliminated in the signal mine described in the Guide to the material part and use of “Engineering Ammunition”, first book, M., Military Publishing House, 1976, p. 185-187, Fig. 137, which, according to the technical nature and the number of matching features, is selected as the closest analogue to the proposed signal device.

The known signal device is intended for mining the terrain in order to alert troops about the appearance of an enemy in a protected area, in addition, simulations of anti-personnel mine explosions can be used for military exercises and during filming.

A manually installed mine weighing 0.4 kg, containing 12-15 pcs. functional stars, provides the duration of the sound signal of 8-10 s and the light signal for 10-12 s.

The height of the signal stars from the ground is from 5 to 25 m with audibility and visibility of signals up to 500 m.

The signal device kit contains a mine that is not fully equipped, an MUV fuse with a R-shaped check, a wire brace with a carbine and a wooden peg.

In the case, made in the form of a thin-walled metal glass, functional pyrotechnic equipment is placed in series-installed signal units: sound and light.

Under the block of asterisks of sound action, a block of channel stars of light action mounted on the bottom of the housing is located, under each of which a powder blow-out charge is placed on an obturating cardboard pad.

A nipple sleeve with an axial throttling channel directed to a powder amplification charge adjacent to the igniter layer at the end face of the sprocket of the sound block is fixed in the open end of the housing.

The throttling sleeve in the tubular housing is sealed with a rubber ring pressed against the cover.

In the bushing adjacent to the throttle channel, an igniter capsule is installed, coaxial to which is located the spring-loaded firing pin of the firing mechanism of the MUV fuse screwed onto the bushing.

The firing pin, loaded with a war spring, is fixed in the fuse shell by means of a check, in the loop of which a carbine is connected, connected with a wire brace fixed to a peg projected into the ground, protruding 12-15 cm.

The banner is attached to the carbine with a slight slack so as not to exert a force on the fuse pin. After that, the check is unscrewed and the mine is masked.

When pulling the wire stretch, the fuse pin is pulled out, releasing the firing pin, which, under the action of the fighting spring, pierces the igniter capsule.

The force of fire from the triggered igniter capsule, formed in the throttle channel of the sleeve, ignites the powder explosive charge and the igniter composition of the layer on the upper star of the sound block.

With the gases generated during the combustion of the powder charge, the sleeve, obturator ring and fuse are knocked out, freeing the open end of the tubular body for the passage of a high-speed flow of gaseous products of combustion of pyrotechnic stars, which generates high-frequency sound vibrations at the outlet of the body - a whistle, which is a sharp sound signal of unauthorized entry to a protected area, clearly audible at a considerable distance.

Next, the stars of the light block are triggered, additionally forming a light cloud, distinguishable in the daytime.

When the lower star of the sound block burns out with thermal energy, the upper (adjacent) channel star of light action is ignited and actively burns along the developed surface, while it is ignited along the axial channel and the powder burst is ignited, generating gases by which the burning star shoots along the guide tube body to a predetermined height where it burns out with bright light.

The expelling charge simultaneously ignites the adjacent star of the light block, as a result of which all the stars sequentially shoot, forming a light signal clearly visible at a great distance.

A disadvantage of the known signal device is the unsatisfactory reliability of the intended operation.

Firstly, during the explosive transformation of the powder charge of the head part of the device, high-pressure gaseous products are formed dynamically enough to completely open the end of the tubular body, with a sharp movement at the output of which a vacuum is formed in the cavity that destabilizes the star’s combustion or detaches its combustion front, as a result of which there may be a complete attenuation - a failure in the operation of the device as a whole.

In addition, the transfer of a heat pulse between the blocks when the lower sound star is burned out does not guarantee the initiation of combustion of the sound block stars without special reinforcing means of ignition.

The technical problem to which the present invention is directed is to increase the functional reliability of a complex integrated signaling device in an automatic mode when a closed territory is used as a security measure.

The required technical result is achieved by the fact that in a known light-sound signal device containing an igniter capsule mounted in a throttling sleeve fixed in a cover equipped with a sealing ring and directed to a block of sound stars, which is sequentially mounted in a common tubular housing in the form of a glass, a channel block light stars, each of which is adjacent to the blowout charge, according to the invention, the block of sound stars is separated by receivers from the throttling sleeve and Lok zvezdok light, the sealed bottom layer of mastic, wherein the receiver is mounted in the bottom an ignition charge, and at the bottom of the housing is placed a damping pad.

Distinctive features of the proposed technical solution ensured the functional reliability of the signaling device due to the guaranteed sequential action of sound and light signals, which allows it to be used in covert placement in the ground as a reactive informational means of protecting the perimeter of a closed territory from unauthorized intrusion.

The remote placement of the block of sound stars from the throttling sleeve and the block of light stars through the receivers is aimed at the accumulation of generated gaseous combustion products in them, filling the free volume for accumulating potential energy from pressure growth, as a result of which in each case the upper elements are knocked out, freeing up passage in the guide tubular housing for free movement of high-speed gas flow from burning sound stars and discrete emission of light the runners respectively.

In this case, a high-temperature directional flame force from the igniter capsule from the axial channel of the throttling sleeve is guaranteed to initiate burning of the open surface of the upper sprocket of the sound block, then for reliable ignition of the adjacent sprocket of the light block, an amplifier in the form of a powder interlayer is additionally installed through the heat energy of the dying sound block, which ensures stable combustion over the entire end surface of the light block.

Sealing the block of light stars from the bottom with a layer of mastic ensures the obturation of the device, that is, this prevents the gaseous products formed during the operation of the device from breaking through.

Placing a damping multilayer gasket under a block of light stars, by definition, compensates for the dynamic loads that occur during the operation of the device, absorbing pressure fluctuations when the charges are triggered and absorbing them, which prevents a destructive shock action on the bottom of the case, which maintains integrity throughout the entire operation time.

Therefore, each essential feature is necessary, and their combination in a stable relationship is sufficient to achieve the novelty of quality, that is, the technical problem posed in the invention is solved not by the sum of the effects, but by a new super-effect of the sum of the attributes.

The gas-dynamic multiparameter task of creating gaseous combustion products in pressure receivers, in which the pyrotechnic compositions of functional stars with maximum specific gas generation are guaranteed to ignite, to ensure, through the delay time of throwing an upstream gas-dynamic shutter without breaking the combustion front from the surface of the star, was solved by the method of mathematical planning of the experiment. Then, according to the calculated data, prototypes for full-scale tests were made, according to which the geometry, the ratio of the sizes of interacting structural elements to achieve optimal modes of characteristic parameters in the confidence range, with reliable operation of the device, were refined.

The invention has been worked out in the entire range of calibers of standard security alarm devices of secretive use.

The invention is illustrated by the drawing, which has a purely illustrative purpose and does not limit the scope of the claims of the totality of the features of the formula. The drawing shows:

figure 1 - the proposed light-sound device;

figure 2 - installation diagram of a security tool.

The light-sound device (Fig. 1) of an engineering security device is made in a thin-walled tubular body 1 made in the form of a glass, at the bottom of which a damping pad 2 is placed in the form of a set of cardboard circles, sealed on top with a layer of mastic 3, in particular of an anaerobic composition.

A block 4 of light stars 5 in the form of pyrotechnic blocks with an axial channel 6, each of which is mounted on an obturating cardboard mug 7 through a layer 8 of smoky gun powder (expelling charge), rests on the gasket 2.

In the upper part of block 4, a receiver 9 is made, lined with a layer 10 of an igniter composition sensitive to a thermal pulse.

Block 4 of light charges adjoins block 11 of stars 12 of sound action, in the head of which a receiver 13 is made, covered with a mounting cross member 14.

On the cross member 14, a support sleeve 15 is mounted with a central throttling channel 16 directed to the receiver 13.

Above, in the supporting sleeve 15, an igniter capsule 17 is placed adjacent to its throttling channel 16.

The sleeve 15 is installed inside the sealing ring 18 adjacent to the tubular body 1, on which is located an obturating rubber ring 19, loaded through the cover 20 by means of a threaded cap 21.

The described signal device is an autonomous element of arsenal storage and in official use.

When installing the signal device for secret protection of the territory, the cap 21 is screwed up and a regular firing mechanism 22 is installed in its place (Fig. 2), the spring-loaded striker 23 of which is located coaxially with the igniter capsule 17.

By means of a cotter pin 24, the position of the striker 23 is fixed in the housing of the firing mechanism 22.

A carabiner 25 is connected to the cotter pin 24, which is connected by a wire extension 26 to a natural support or a peg 27 specially hammered into the ground.

The wire extension 26 is attached without tension, masked in the terrain, after which the tendrils of the cotter pin 24 are bent coaxially to the mounting hole - the device is ready to protect the closed territory.

In case of unauthorized entry into the protected area, the intruder, when walking with his foot, pulls the hidden wire extension 26 and pulls out the cotter pin 24 from the firing mechanism 22, which releases the striker 23.

Under the action of the fighting spring of the firing mechanism 22, the firing pin 23 pierces the igniter capsule 17, the force of the flame, when triggered, enters the throttle channel 16 of the sleeve 15.

An oversized force of flame from the channel 16 initiates burning of the open surface of the sprocket 12, the gaseous combustion products of which dynamically fill the volume of the receiver 13, where the pressure rises sharply.

Increased pressure in the receiver 13, the mounting cross member 14, together with the structural elements installed on it, is knocked out of the housing 1, freeing the passage to the generated gaseous products of combustion of the stars 12. At the same time, the output shock opening of the housing 1 causes a shock wave that creates sound pressure accompanied by a sharp sound effect of high tones - whistle.

The volume of the cavity in the block 11 formed during the burning of charges 12, taking into account the receiver 13, forms a reverb, where scattering of reflected sound waves with insufficient reverberation takes place, accompanied by the acoustic effect of a sharp jerky sound, forming a predetermined alarm.

When the lower sprocket 12 of block 11 is burned out, the heat-sensitive composition of the interlayer 10 in the receiver 9 is ignited, initiating the burning of the light pyrotechnic composition of the adjacent channel sprocket 5 of block 4.

Through the channel 8 of the star 5, the force of the flame is transmitted to the knockout charge 8 and ignites it. The gaseous products of intense burning of charge 8, the star 5 is knocked out of the housing 1, continuing to burn in the air with the formation of bright light radiation colored with a given color (red, green or white).

At the same time, the next star 5 of block 4 is ignited by the thermal energy of the burning charge 8, and the process is repeated as described above.

The generated aerosol stream, expanding in the free air volume, forms a cloud with distributed brightly glowing emitters of high light intensity, which serves as a light signal indicating unauthorized entry into the protected area.

Additionally, a light signal, distinguishable during the day, in the dark, well and continuously illuminates the area in the area of violation of the security zone for search operations.

Tests of prototypes of the proposed light-sound device showed high reliability of operation and efficiency of the intended action, which allows us to recommend it for guarding the perimeter of closed territories.

Claims (1)

A light and sound signal device containing an igniter capsule mounted in a throttling sleeve fixed in a cover equipped with a sealing ring and directed to a block of sound stars, which is sequentially mounted in a common tubular housing in the form of a glass block of channel light stars, each of which is adjacent to the bending a charge equipped with an obturator gasket, characterized in that the block of sound stars is separated by receivers from the throttling sleeve and the block of light stars, germ and enshrined bottom layer of mastic, wherein the receiver is mounted in the bottom an ignition charge, and at the bottom of the housing is placed a damping pad.

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