CN109663257B - Hot-melting alloy constrained air-burst fire extinguishing bomb - Google Patents
Hot-melting alloy constrained air-burst fire extinguishing bomb Download PDFInfo
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- CN109663257B CN109663257B CN201811579874.1A CN201811579874A CN109663257B CN 109663257 B CN109663257 B CN 109663257B CN 201811579874 A CN201811579874 A CN 201811579874A CN 109663257 B CN109663257 B CN 109663257B
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- agent storage
- storage device
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
- A62C37/10—Releasing means, e.g. electrically released
- A62C37/11—Releasing means, e.g. electrically released heat-sensitive
- A62C37/12—Releasing means, e.g. electrically released heat-sensitive with fusible links
Abstract
The invention discloses a hot-fusion-alloy constrained air-blast fire extinguishing bomb, and belongs to the technical field of special fire-fighting equipment. Comprises a fire extinguishing agent storage device, a percussion device, a bottom plate, a projection device, a safety device, a lithium battery, an upper shell, a lower shell and a strong double-sided adhesive. The fire extinguishing agent storage device is used for providing substances required by fire extinguishing, the triggering device provides dispersed power for the fire extinguishing agent storage device, the projection device is used for pushing the fire extinguishing agent storage device and the triggering device, the safety device is used for locking the fire extinguishing bomb to prevent accidental triggering, the lithium battery is pushed to move in place after the hot fusion alloy is heated, electric energy is provided for the projection device, the upper shell and the lower shell form a circle in shape, and strength protection is provided for the fire extinguishing bomb. The fire extinguishing bomb has the tumbler characteristic in the whole structure, and is provided with strong double-sided adhesive, so that the posture of the fire extinguishing bomb is fast and stable, the fire extinguishing agent storage device can be effectively dispersed in the air in a fire scene environment, and the fire extinguishing effect is better.
Description
Technical Field
The invention discloses a hot-fusion-alloy constrained air-blast fire extinguishing bomb, and belongs to the technical field of special fire-fighting equipment.
Background
Along with the development of economy in China, various high-rise buildings are continuously emerged, and the modern buildings are large in scale, high in standard, dense in personnel and numerous in equipment. But the fire accident of high buildings also rises. The capability of the existing fire-fighting equipment is seriously unbalanced with the development of high-rise buildings. The poor maneuverability of fire-fighting equipment, and the surrounding environmental influence and other factors have become the fatal defects that restrict the effective fire fighting of high-rise buildings.
In the current fire rescue, water or fire extinguishers are generally used for fire fighting. However, the existing fire extinguishing equipment has the following defects:
a) when in use, the device needs to be close to an ignition point, so that potential safety hazards exist;
b) for some occasions, such as an explosive dangerous warehouse or an oil tank, explosion is easy to cause when a fire disaster happens, fire fighters take the life danger to take part in fire extinguishing, and the fire extinguishing danger is too large;
c) for large fires, fire extinguishers cannot be held close to the fire extinguisher and cannot be used.
At present, the safety at ordinary times and the fire extinguishing effect in use become important points for index investigation of fire extinguishing equipment.
Aiming at the defects of the prior art, some provide a new scheme of a throwing type fire extinguishing bomb so as to solve the trouble that a fire needs to be extinguished in a short distance when a fire disaster happens. For example, "a fire extinguishing bomb" declared by the mixofitute safety equipment, llc, application No.: 201610990378.X, the fire extinguishing bomb can be thrown into fire scene from a long distance, and after the fire extinguishing bomb enters the fire scene, the powder rope is ignited to ignite the powder, and the fire extinguishing agent is exploded and pushed to the fire place to achieve instantaneous and strong fire extinguishing effect. However, the above solution has the following disadvantages: the fire extinguishing bomb explodes on the ground, is limited by factors such as terrain and the like, has poor fire extinguishing effect and cannot realize large-scale fire extinguishing; the combustion time of the fire-extinguishing rope is wide in distribution range, so that the fire-extinguishing bomb is easy to act on the periphery of a fire scene when not reaching the fire scene; the whole mechanism is not provided with a safety fuse, so that false explosion is easily caused during operation on a fire scene, and the danger coefficient is large.
Disclosure of Invention
The invention provides a hot-melting alloy constraint type air explosion fire extinguishing bomb for overcoming the defects and shortcomings of the prior art, which has the advantages of safety, safety and difficult accidental action, can act in the air, fully exerts the fire extinguishing efficiency and is particularly suitable for indoor environments.
In order to achieve the purpose, the invention adopts the following technical scheme:
a hot-fusion alloy restrained type air-blast fire extinguishing bomb is characterized by comprising a fire extinguishing agent storage device, a triggering device, a bottom plate, a projecting device, a safety device, a lithium battery, an upper shell, a lower shell and strong double-sided adhesive.
The fire extinguishing agent storage device is used for providing substances required by fire extinguishing, and comprises superfine dry powder and an internally hollowed cavity manufactured based on a 3D printing technology, wherein the cavity is made of a plastic material, the superfine dry powder is used as the fire extinguishing agent, the fire extinguishing efficiency of the fire extinguishing agent is more than 40 times that of a water-based fire extinguishing agent and 6-10 times that of a common dry powder fire extinguishing agent, the maximum fire extinguishing effect can be achieved in the shortest time, the internally hollowed cavity manufactured based on the 3D printing technology is adopted, the cavity is made of the plastic material, the 3D printing technology is used for manufacturing parts in a material stacking mode, the interior of the fire extinguishing agent storage device can be hollow, if a traditional machining mode is used, a cavity body and a cavity cover of the cavity need to be machined, threads or screw holes need to be machined, connection of the cavity body and the cavity cover is achieved, and the traditional cavity body and the cavity cover can be equivalent to the traditional cavity body and, after the chamber 3D prints the completion, only need open a aperture, toward the inside superfine dry powder of pouring into of chamber can, the plastics material is chooseed for use to the chamber material, explodes superfine dry powder and chamber after the firing device of being convenient for explodes, is favorable to superfine dry powder dispersion.
The firing device comprises a firing pin, a firing pin spring, a needling detonator, black powder, a shell and a small pressing screw, wherein the firing pin, the firing pin spring and the needling detonator are arranged in the shell, the firing pin spring is in a compressed state, the compression amount is 10% -15%, the firing pin is normally restrained by the firing pin, the firing pin is far away from the needling detonator, the tip of the bottom of the firing pin is 7-10 mm away from the needling detonator, the needling detonator is prevented from being fired under the accidental conditions of vibration, collision and the like when the firing pin is flat, the upper end of the firing pin is exposed out of the upper end face of the shell by 10mm, the black powder is arranged in the shell, after the needling detonator is fired by the firing pin, the needling detonator detonators detonate the black powder, the firing device is arranged in the middle of the fire extinguishing agent storage device and provides dispersed kinetic energy for the fire extinguishing agent storage device, the firing device is normally locked by the firing pin spring and is far away from the needling detonator, the safety at ordinary times is ensured, when the firing device is emptied and impacts the ceiling of a house, the firing pin overcomes the resistance of the firing pin spring to poke the needle-punched detonator, and the needle-punched detonator detonates the black powder.
The base plate is made of foamed aluminum material with the porosity of 60% -70%, the upper end of the base plate is used for placing the fire extinguishing agent storage device, the lower end of the base plate is used for placing the projecting device, the base plate plays a role in buffering and protection, and when the projecting device acts, impact force impacts the fire extinguishing agent storage device to prevent the fire extinguishing agent storage device from being damaged, because the foamed aluminum has light weight, high specific stiffness, good high damping and shock absorption performance and impact energy absorption rate, the damping performance of the foamed aluminum is 5-10 times of that of metal aluminum, for example, when the foamed aluminum with the porosity of 84% deforms by 50%, 2.5MJ/cm can be absorbed3The above energy.
The device comprises a projection device, a shooting device and a shooting device, wherein the projection device mainly comprises a projection medicine box, an electric detonator, an electric switch and a shooting body, the projection medicine box mainly comprises double vinegar granules 11, a nitro film and a box body, the double vinegar granules 11 are arranged in the box body, the nitro film covers the double vinegar granules 11, the electric switch is of two beryllium bronze cylindrical structures, after the electric switch is electrified, electric energy is provided for the electric detonator, after the electric detonator acts, the projection medicine box is ignited, and the projection medicine box provides kinetic energy for a fire extinguishing agent storage device, a firing device and a bottom plate which are arranged on the projection device;
the safety device comprises a hot-melt alloy body, a sliding block, a push spring, a cavity and a large pressing screw, wherein the hot-melt alloy body is in a cylindrical shape and is arranged at one end of the sliding block, one end, connected with the hot-melt alloy body, of the sliding block is in a cylindrical shape, the diameter of the cylinder of the sliding block is smaller than that of the hot-melt alloy body, the other end of the sliding block is in a rectangular block shape, a groove is formed in the end part of the rectangular block, the push spring is accommodated in the groove and is in a compressed state, the upper end of the sliding block is provided with a large groove, a lithium battery is accommodated in the large groove, the large pressing screw is hollow, a gap is formed between the sliding block and the upper end of the cavity, a through hole is formed in the lower end;
the lithium battery is fixedly bonded on the sliding block by using glue, the lithium battery is provided with two copper wiring terminals, and the upper ends of the two copper wiring terminals are separated from the upper end of the cavity by a gap, so that the sliding block can conveniently move in the cavity;
the upper shell and the lower shell are connected together in a bonding or welding mode, the upper shell and the lower shell form a circle, a groove is formed in the lower shell and is communicated with a through hole at the lower end of the cavity, the groove is used for accommodating a melted hot-melt alloy body, the bottom of the lower shell is not provided with an arc and is a smooth plane, the bottom of the lower shell is also provided with a groove, strong double-sided adhesive is accommodated in the groove, and the upper shell and the lower shell provide strength protection for the whole fire extinguishing bomb;
the powerful double-sided adhesive provides adhesion for the fire extinguishing bomb, and in the rolling process of the fire extinguishing bomb, after the bottom of the lower shell is in contact with the ground, the powerful double-sided adhesive is immediately adhered to the ground, so that the posture of the fire extinguishing bomb is quickly adjusted, the lower shell is located below, and if the powerful double-sided adhesive is not arranged, the posture of the fire extinguishing bomb can be adjusted only after the fire extinguishing bomb is rolled stably, so that the movement time of the fire extinguishing bomb is prolonged, and the fire extinguishing and rescue time is delayed.
Further, the focus of fire extinguishing bomb is located the lower extreme, is in safeties's inside, goes up the casing and has tumbler characteristic with lower casing for trigger device is directly over after the fire extinguishing bomb motion is stable, so, is guaranteed to be reliably strikeed after the reliable striking ceiling of trigger device, just so can exert the maximum efficiency of fire extinguishing bomb, otherwise, the fire extinguishing bomb can not the air-burst, and efficiency of putting out a fire can greatly reduced.
Furthermore, the hot-melt alloy body is a wood fusible alloy with a melting point of 72 ℃, the chemical components of the wood fusible alloy body are 50% Bi-25% Pb-12.5% Sn-12.5% Cd, the arrangement is such that the hot-melt alloy body is prevented from melting under a common high-temperature environment, and the common ignition temperature is higher than the selected melting point of 72 ℃, so that the hot-melt alloy body can be reliably melted.
Furthermore, the distance from the central axis of the power connection switch to the central axis of the lithium battery is equal to the distance from the initial state to the position where the sliding block moves in place, and the stroke of the push spring is larger than the distance from the initial state to the position where the sliding block moves in place.
Further, connect the electric switch to be fixed in on the cavity, and connect the electric switch to put in place the back at the lithium cell motion, connect the lower extreme of electric switch and reliably contact with two copper terminal posts of lithium cell, so set up, ensure to connect the electric switch can reliably contact with the lithium cell.
Furthermore, the relation between the mass m1 of the double vinegar granules 11 in the propellant medicine box and the mass m2 formed by the fire extinguishing agent storage device, the trigger device and the bottom plate is that m1 is (0.003-0.008) m2, and the mass m1 of the double vinegar granules 11 is more than 3 g. According to the arrangement, in the mass ratio range, the double vinegar granules 11 are not wasted, the double vinegar granules 11 in the cast medicine box can be ensured to reliably push the fire extinguishing agent storage device, the firing device and the bottom plate to the high altitude, the lift-off height is 3-5 m, the floor height of a common high-rise residential building is 2.8m, and therefore the firing device is enabled to have enough kinetic energy to impact the ceiling, and the firing device is enabled to be reliably fired.
Furthermore, the relation between the mass m3 of the black powder and the mass m4 of the fire extinguishing agent storage device is 0.006m 4-0. 3-0.009 m4, the arrangement is that according to test data, in the mass relation range, after the black powder explodes, the explosion kinetic energy of the black powder can reliably disperse the fire extinguishing agent storage device in the air, and even if the consumption of the black powder is increased, the effect of dispersing the fire extinguishing agent storage device in the air by the explosion kinetic energy of the black powder is not increased, so the consumption effect of the black powder in the range is optimal.
Furthermore, the connection strength of the upper shell and the lower shell is lower than the strength of the chamber of the fire extinguishing agent storage device, so that the upper shell can reliably fall off from the lower shell after the projectile device acts, and the fire extinguishing agent storage device, the percussion device and the bottom plate are further reliably pushed to move to the high altitude.
The working principle of the invention is as follows:
at ordinary times, the slider on the safety device is limited in an original state by the hot-melting alloy body, the push spring at the moment is in a compressed state, the lithium battery on the slider is far away from the power connection switch, and the fire extinguishing bomb is in a safe state at the moment.
When a fire disaster occurs to a building at a certain position, the fire extinguishing bomb is thrown into the building where the fire disaster occurs from the outside (such as a window or a door), because the upper shell and the lower shell of the fire extinguishing bomb form a circular structure, the fire extinguishing bomb can roll along the ground after being thrown into the building, because the bottom of the lower shell of the fire extinguishing bomb is a plane and contains a strong double-sided sticker, the top of the upper shell is a circular arc, and the structure of the whole fire extinguishing device has the characteristic of a tumbler, the fire extinguishing bomb can be rapidly stabilized, and after final stabilization, the triggering device of the fire extinguishing bomb is positioned above and the safety device is positioned below.
After the hot-melt alloy body senses the temperature of an external fire field, because the hot-melt alloy body is a wood fusible alloy with a lower melting point, the hot-melt alloy body is heated and melted, the constraint on the sliding block is removed, the pushing spring in a compressed state pushes the sliding block to move in place, because the sliding block is designed to have a limiting function after the sliding block moves in place, the lithium battery on the sliding block is changed from a state that the lithium battery is far away from an electric switch in the projection device to be reliably contacted with the electric switch, after the electric switch is electrified, the electric detonator is detonated, then the electric detonator detonates the double vinegar granules 11 in the projection medicine box, and after the action of the double vinegar granules 11, kinetic energy is generated to push a bottom plate on the projection device, a fire extinguishing agent storage device and a firing device to move upwards, because the connection strength of the upper shell and the lower shell is weaker, when the bottom plate and the fire extinguishing agent storage device move upwards, the upper shell is pushed away, and when the bottom plate and the fire extinguishing agent storage device move upwards, The firing device and the upper shell move upwards together, when the firing device collides with a ceiling of a building, a firing pin in the firing device is impacted reversely, the firing pin overcomes the resistance of a firing pin spring and moves downwards, the firing pin punctures a needle-punched detonator, the needle-punched detonator ignites black powder, the black powder explodes to provide dispersed kinetic energy for the fire extinguishing agent storage device, and superfine dry powder in the fire extinguishing agent storage device is effectively dispersed in the air to achieve a better fire extinguishing effect.
The invention has the following beneficial effects:
a) the safety device is provided, the safety at ordinary times can be ensured, the accidental effect can be prevented, the temperature-related hot-melt alloy is selected for the safety device, the safety device can reliably release the safety only in the fire scene environment, and the safety device can not release the safety at ordinary times because the environment temperature generally does not reach 70 ℃;
b) the whole structure has the characteristic of a tumbler and contains strong double-sided adhesive, so that the fire extinguishing bomb can be quickly and stably operated, and after the fire extinguishing bomb is stably moved, the firing device is positioned right above the fire extinguishing bomb, and the fire extinguishing bomb can reliably realize throwing movement;
c) the projectile device is arranged, so that the whole fire extinguishing bomb has the projectile kinetic energy, and the fire extinguishing agent storage device is projected to the air to play the effect of the fire extinguishing bomb to the maximum extent;
d) the invention has simple operation, can realize the automatic fire extinguishing function by directly throwing the fire extinguishing agent to the fire scene environment, and has better fire extinguishing effect.
Drawings
FIG. 1 is a schematic view of the overall structure of a thermal fusion alloy restrained type air-blast fire extinguishing bomb according to the present invention;
FIG. 2 is a schematic structural component view of the percussion device of the present invention;
figure 3 is a schematic view of the construction of the projectile apparatus of the invention;
fig. 4 is a schematic structural diagram of the safety device of the present invention.
The figures represent the following meanings:
in fig. 1: 1-fire extinguishing agent storage device, 2-percussion device, 3-bottom plate, 4-casting device, 5-safety device, 6-lithium battery, 7-upper shell, 8-lower shell and 9-strong double-sided adhesion;
in fig. 2: 2-1-firing pin, 2-firing pin spring, 2-3-acupuncture detonator, 2-4-black powder, 2-5-shell and 2-6-small pressing screw;
in fig. 3: 4-1-a projectile box, 4-2-an electric detonator, 4-3-an electric switch and 4-a projectile body;
in fig. 4: 5-1-hot melt alloy body, 5-2-sliding block, 5-3-push spring, 5-4-cavity body and 5-large-pressure screw.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
A specific embodiment of a thermal alloy constrained air-blast fire extinguishing bomb, as shown in fig. 1, comprising a fire extinguishing agent storage device 1, a percussion device 2, a bottom plate 3, a projection device 4, a safety device 5, a lithium battery 6, an upper shell 7, a lower shell 8 and a strong double-sided adhesive 9;
the fire extinguishing agent storage device 1 is used for providing substances required by fire extinguishing, and comprises superfine dry powder 1-1 and a cavity 1-2 which is made by 3D printing technology and is hollow inside, wherein the cavity 1-2 is made of plastic materials, such as ABS materials;
the firing device 2 is shown in figure 2 and comprises a firing pin 2-1, a firing pin spring 2-2, an acupuncture detonator 2-3, black powder 2-4, a shell 2-5 and a small pressing screw 2-6, wherein the firing pin 2-1, the firing pin spring 2-2 and the acupuncture detonator 2-3 are arranged in the shell 2-5, the firing pin spring 2-2 is in a compression state, the compression amount is 10% -15%, the firing pin 2-2 normally restrains the firing pin 2-1 to enable the firing pin 2-1 to be far away from the acupuncture detonator 2-3, the distance from the tip of the bottom of the firing pin 2-1 to the acupuncture detonator 2-3 is 7 mm-10 mm, the acupuncture detonator 2-3 is prevented from being fired under the accidental conditions of vibration, collision and the like when the firing pin 2-1 is flat, the upper end of the firing pin 2-1 is exposed out of the upper end face of the shell 2-5 by 10mm, the black powder 2-4 is arranged in the shell 2-5, when the needle-pricked detonator 2-3 is pricked by the firing needle 2-1, the needle-pricked detonator 2-3 detonates the black powder 2-4, the relation between the mass m3 of the black powder 2-4 and the mass m4 of the fire extinguishing agent storage device 1 is 0.006m 4-0 m 3-0.009 m4, the preferred mass m3 of the black powder 2-4 is 5 g, the mass m4 of the fire extinguishing agent storage device 1 is 0.8 kg, and the percussion device 2 is arranged in the middle of the fire extinguishing agent storage device 1 to provide dispersed kinetic energy for the fire extinguishing agent storage device 1;
the bottom plate 3 is made of foamed aluminum material with the porosity of 60% -70%, the upper end of the bottom plate is used for placing the fire extinguishing agent storage device 1, the lower end of the bottom plate is used for placing the projection device 4, the bottom plate 3 plays a role in buffering and protection, and when the projection device 4 acts, impact force impacts the fire extinguishing agent storage device 1 to prevent the fire extinguishing agent storage device 1 from being damaged;
the ejection device 4 is mainly composed of an ejection medicine box 4-1, an electric detonator 4-2, an electric switch 4-3 and an ejection body 4-4, the ejection medicine box 4-1 is mainly composed of a double vinegar particle 11, a nitro film and a box body, the double vinegar particle 11 is loaded in the box body, the nitro film covers the double vinegar particle 11, the relation between the mass m1 of the double vinegar particle 11 and the mass m2 composed of the fire extinguishing agent storage device 1, the trigger device 2 and the bottom plate 3 is m1 (0.003-0.008) m2, the mass m1 of the double vinegar particle 11 is more than 3 g, in the embodiment, the mass m1 of the double vinegar particle 11 is preferably 3.5 g, and the mass m2 composed of the fire extinguishing agent storage device 1, the trigger device 2 and the bottom plate 3 is 0.9 kg;
the electric switch 4-3 is of a two-beryllium bronze cylindrical structure, the distance between the central axis of the two electric switches 4-3 and the central axis of the lithium battery 6 is equal to the distance between the central axis of the slide block 5-2 in the initial state and the movement in place, the electric switch 4-3 is fixed on the cavity 5-4, the lower end of the electric switch 4-3 is reliably contacted with two copper binding posts of the lithium battery 6 after the electric switch 4-3 moves in place, the electric switch 4-3 supplies electric energy to the electric detonator 4-2 after being electrified, the electric detonator 4-2 detonates the medicine box 4-1 after acting, and the medicine box 4-1 detonates the medicine box 1 and provides kinetic energy for the fire extinguishing agent storage device 1, the percussion device 2 and the bottom plate 3 which are arranged on the catapult device 4;
the safety device 5 is mainly composed of a hot-melt alloy body 5-1, a sliding block 5-2, a push spring 5-3, a cavity 5-4 and a large-pressure screw 5-5, wherein the hot-melt alloy body 5-1 is in a cylinder shape, the hot-melt alloy body 5-1 is made of wood fusible alloy with a melting point of 72 ℃ and comprises chemical components of 50% Bi-25% Pb-12.5% Sn-12.5% Cd, the hot-melt alloy body 5-1 is arranged at one end of the sliding block 5-2, one end, connected with the hot-melt alloy body 5-1, of the sliding block 5-2 is in a cylinder shape, the cylinder diameter of the sliding block 5-2 is smaller than that of the hot-melt alloy body 5-1, the other end of the sliding block 5-2 is in a rectangular block shape, a groove is formed in the end of the rectangular block, the push spring 5-3 is accommodated in the groove, and the push spring 5-3 is in a compressed state, and the stroke of the push spring 5-3 is larger than the distance from the initial state to the moving position of the slide block 5-2;
the upper end of the sliding block 5-2 is provided with a large groove, a lithium battery 6 is contained in the large groove, the large pressing screw 5-5 is hollow, a gap is formed between the sliding block 5-2 and the upper end of the cavity 5-4, and a through hole is formed in the lower end of the cavity 5-4;
the lithium battery 6 is fixedly bonded on the sliding block 5-2 by AB glue, two copper binding posts are arranged on the lithium battery 6, and a gap is formed between the upper ends of the two copper binding posts and the upper end of the cavity 5-4;
the upper shell 7 and the lower shell 8 are connected together in a bonding or welding mode, the upper shell 7 and the lower shell 8 form a circle, a groove is formed in the lower shell 8 and is communicated with a through hole at the lower end of the cavity 5-4, the bottom of the lower shell 8 is not provided with an arc and is a smooth plane, the bottom of the lower shell 8 is also provided with a groove, a strong double-sided adhesive 9 is contained in the groove, and the upper shell 7 and the lower shell 8 provide strength protection for the whole fire extinguishing bomb;
the strong double-sided adhesive 9 provides adhesion for the fire extinguishing bomb.
Furthermore, the center of gravity of the fire extinguishing bomb is located at the lower end and is located inside the safety device 5, and the upper shell 7 and the lower shell 8 have the tumbler characteristic, so that the firing device 2 is located right above the fire extinguishing bomb after the fire extinguishing bomb moves stably.
The total weight of the embodiment is 1.2 kg, the test effect shows that after the embodiment is thrown into a fire scene, after 7 seconds, the explosion sound of the action of the propellant box 4-1 in the propellant device 4 is heard, which shows that the safety device 5 is reliably released and moves in place, about 1 second, the explosion sound is heard again, which shows that the trigger device 2 is acted, the black powder 2-4 detonates the fire extinguishing agent storage device 1, and the embodiment can look at the scene, and can take 15m3The fire source in the space is effectively extinguished, especially in places where the roof ceiling portion is often difficult to extinguish.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (4)
1. A hot-fusion alloy constrained air-blast fire extinguishing bomb is characterized by comprising a fire extinguishing agent storage device (1), a percussion device (2), a bottom plate (3), a projecting device (4), a safety device (5), a lithium battery (6), an upper shell (7), a lower shell (8) and a strong double-sided adhesive (9);
the fire extinguishing agent storage device (1) is used for providing substances required by fire extinguishing, and comprises superfine dry powder (1-1) and a cavity (1-2) which is made by 3D printing technology and is hollow inside, wherein the cavity (1-2) is made of plastic material;
the firing device (2) comprises a firing pin (2-1), a firing pin spring (2-2), a needled detonator (2-3), black powder (2-4), a shell (2-5) and a small pressing screw (2-6), wherein the firing pin (2-1), the firing pin spring (2-2) and the needled detonator (2-3) are arranged in the shell (2-5), the firing pin spring (2-2) is in a compression state, the compression amount is 10% -15%, the firing pin (2-2) normally restrains the firing pin (2-1) to enable the firing pin (2-1) to be far away from the needled detonator (2-3), the tip of the bottom of the firing pin (2-1) is 7-10 mm away from the needled detonator (2-3), and the firing pin (2-1) is prevented from vibrating, colliding and the needled detonator (2-3) under the accidental conditions of flat firing, such as collision and the like, the upper end of the firing pin (2-1) is exposed out of the upper end face of the shell (2-5) by 10mm, the black powder (2-4) is arranged in the shell (2-5), when the needle-punched detonator (2-3) is fired by the firing pin (2-1), the needle-punched detonator (2-3) detonates the black powder (2-4), and the firing device (2) is arranged in the middle of the fire extinguishing agent storage device (1) to provide dispersed kinetic energy for the fire extinguishing agent storage device (1);
the bottom plate (3) is made of foamed aluminum material with the porosity of 60% -70%, the upper end of the bottom plate is used for placing the fire extinguishing agent storage device (1), the lower end of the bottom plate is used for placing the projection device (4), the bottom plate (3) plays a role in buffering and protection, and when the projection device (4) acts, impact force is prevented from impacting the fire extinguishing agent storage device (1) to cause damage to the fire extinguishing agent storage device (1);
the device is characterized in that the projection device (4) mainly comprises a projection medicine box (4-1), an electric detonator (4-2), an electric switch (4-3) and a projection body (4-4), the projection medicine box (4-1) mainly comprises double vinegar granules 11, nitro films and a box body, the double vinegar granules 11 are arranged in the box body, the nitro films cover the double vinegar granules 11, the electric switch (4-3) is of a two beryllium bronze cylindrical structure, after the electric switch (4-3) is connected with electricity, electric energy is provided for the electric detonator (4-2), the electric detonator (4-2) detonates the projection medicine box (4-1), and the projection medicine box (4-1) provides kinetic energy for a fire extinguishing agent storage device (1), a firing device (2) and a bottom plate (3) which are arranged on the projection device (4);
the safety device (5) is composed of a hot-melting alloy body (5-1), a sliding block (5-2), a push spring (5-3), a cavity body (5-4) and a large-pressure screw (5-5), wherein the hot-melting alloy body (5-1) is cylindrical and is arranged at one end of the sliding block (5-2), one end, connected with the hot-melting alloy body (5-1), of the sliding block (5-2) is cylindrical, the diameter of the cylinder of the sliding block (5-2) is smaller than that of the hot-melting alloy body (5-1), the other end of the sliding block (5-2) is rectangular, a groove is formed in the end part of the rectangular block, the push spring (5-3) is accommodated in the groove, the push spring (5-3) is in a compressed state, a large groove is formed in the upper end of the sliding block (5-2), and a lithium battery (6) is accommodated in the large groove, the large pressing screw (5-5) is hollow, a gap is formed between the sliding block (5-2) and the upper end of the cavity (5-4), and a through hole is formed in the lower end of the cavity (5-4);
the lithium battery (6) is fixedly bonded on the sliding block (5-2) by glue, two copper binding posts are arranged on the lithium battery (6), and a gap is formed between the upper ends of the two copper binding posts and the upper end of the cavity (5-4);
the upper shell (7) and the lower shell (8) are connected together in a bonding or welding mode, the upper shell (7) and the lower shell (8) form a circle, a groove is formed in the lower shell (8) and communicated with a through hole at the lower end of the cavity (5-4), the bottom of the lower shell (8) is not provided with an arc and is a smooth plane, the bottom of the lower shell (8) is also provided with a groove, a strong double-sided adhesive (9) is contained in the groove, and the upper shell (7) and the lower shell (8) provide strength protection for the whole fire extinguishing bomb;
the strong double-sided adhesive (9) provides adhesive force for the fire extinguishing bomb;
the center of gravity of the fire extinguishing bomb is located at the lower end and is located inside the safety device (5), the upper shell (7) and the lower shell (8) have the tumbler characteristic, and the firing device (2) is located right above the fire extinguishing bomb after the fire extinguishing bomb moves stably;
the distance between the central axis of the power connection switch (4-3) and the central axis of the lithium battery (6) is equal to the distance between the sliding block (5-2) from the initial state to the moving position, and the stroke of the push spring (5-3) is greater than the distance between the sliding block (5-2) from the initial state to the moving position;
the power connection switch (4-3) is fixed on the cavity (5-4), and after the lithium battery (6) moves in place, the lower end of the power connection switch (4-3) is reliably contacted with two copper binding posts of the lithium battery (6);
the relation between the mass m1 of the double vinegar granules 11 in the propellant medicine box (4-1) and the mass m2 formed by the fire extinguishing agent storage device (1), the trigger device (2) and the bottom plate (3) is that m1 is (0.003-0.008) m2, and the mass m1 of the double vinegar granules 11 is more than 3 g.
2. A thermal alloy confined type air-blast fire extinguishing bomb as claimed in claim 1, characterized in that said thermal alloy body (5-1) is wood fusible alloy with melting point 72 ℃ and chemical composition of 50% Bi-25% Pb-12.5% Sn-12.5% Cd.
3. A thermal alloy confined type air-blast fire extinguishing bomb as set forth in claim 1, characterized in that the relationship between the mass m3 of black powder (2-4) and the mass m4 of fire extinguishing agent storage unit (1) is 0.006m4 m 3m 4.
4. A thermal alloy confined type air-blast fire extinguishing bomb as claimed in claim 1, characterized in that the strength of the connection of said upper case (7) and lower case (8) is lower than the strength of the chamber (1-2) of the fire extinguishing agent storage means (1).
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| CN201811579874.1A CN109663257B (en) | 2018-12-24 | 2018-12-24 | Hot-melting alloy constrained air-burst fire extinguishing bomb |
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| CN201811579874.1A CN109663257B (en) | 2018-12-24 | 2018-12-24 | Hot-melting alloy constrained air-burst fire extinguishing bomb |
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| CN109663257B true CN109663257B (en) | 2021-09-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111228681B (en) * | 2020-01-13 | 2021-05-07 | 陈春霞 | Fire extinguishing system |
| CN112169232B (en) * | 2020-09-27 | 2021-07-13 | 周鹏 | Throwing type safety foam fire extinguisher |
| CN114272538B (en) * | 2021-12-25 | 2022-08-23 | 国泰瑞安股份有限公司 | Fire extinguishing ball and fire extinguishing device applied to same |
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| CN109663257A (en) | 2019-04-23 |
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