Simple fire extinguisher

Abstract

To provide a simple fire extinguisher that allows an amount of a fire extinguishing agent to be increased or allows the size of a container to be reduced, and allows the limit on the strength of the container and the direction of use to be relaxed as compared to a conventional aerosol type.SOLUTION: A simple fire extinguisher 1 comprises an inner bag 5 filled with a fire extinguishing agent 3, an outer container 7 for storing the inner bag 5, and a lid member 9 for covering mouth parts of the inner bag 5 and the outer container 7 and having a discharge port 21 for discharging the fire extinguishing agent 3. The simple fire extinguisher includes a foaming agent 11, a reaction agent 13 for foaming the foaming agent 11, an encapsulation bag 15 for encapsulating the foaming agent 11 and / or the reaction agent 13, a partitioning part 17 provided inside a bottom part of the outer container 7 and partitioning the internal space of the outer container 7 to make a predetermined region, which stores the foaming agent 11 and the reaction agent 13, and a protrusion 19 provided in the partitioning part 17 for rupturing the encapsulation bag 15. By imparting an impact to the outer container 7, the encapsulation bag 15 is ruptured, and the foaming agent 11 is caused to react with the reaction agent 13. Pressure is applied to the inner bag 5 by the foaming of the foaming agent 11, and the fire extinguishing agent 3 is discharged.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a small, simple fire extinguisher that can be easily used to extinguish a small-scale fire in its early stages. [Background technology]

[0002] An example of a small, simply constructed fire extinguishing device intended for small-scale fires is the fire extinguisher disclosed in Patent Document 1. The fire extinguisher in Patent Document 1 is installed inside a home appliance or the like that has an internal heat source such as a capacitor, and is designed to automatically spray a fire extinguishing agent when a fire breaks out due to heat generated during use of the home appliance or the like.

[0003] However, since the fire extinguishing device of Patent Document 1 is installed inside the equipment to be extinguished, the target of fire extinguishing is limited. Furthermore, since the extinguishing agent is sprayed when heated to a predetermined temperature, the user cannot spray the extinguishing agent at the timing intended.

[0004] On the other hand, a simple aerosol (spray) type fire extinguisher is a conventional fire extinguisher that is portable and can be used manually for small-scale fires that occur in trash cans, stoves, etc. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 2718444 Summary of the Invention [Problem to be solved by the invention]

[0006] Aerosol-type simple fire extinguishers require a container to hold high-pressure gas to spray the extinguishing agent, which reduces the amount of agent that can be filled and makes the container larger. Also, since there is a risk of the container rupturing or exploding if exposed to high temperatures, it is necessary to use a container with a certain level of strength. Furthermore, since aerosol types use a siphon tube, the extinguishing agent may stop spraying if the container is used sideways or upside down, so there are limitations on the orientation in which it can be used.

[0007] The present invention has been made to solve such problems, and aims to provide a simple fire extinguisher that can increase the amount of fire extinguishing agent compared to conventional aerosol types, can make the container smaller, and can also alleviate restrictions on the strength of the container and the orientation of use. [Means for solving the problem]

[0008] (1) The simple fire extinguisher according to the present invention comprises an inner bag filled with a fire extinguishing agent, an outer container that houses the inner bag, and a lid member that covers the mouths of the inner bag and the outer container and has a discharge port through which the fire extinguishing agent is discharged. The fire extinguishing agent is discharged from the discharge port by pressurizing the inner bag. The simple fire extinguisher comprises a foaming agent, a reactive agent that reacts with the foaming agent to foam the foaming agent, a sealing bag that encloses the foaming agent and / or the reactive agent so that the foaming agent and the reactive agent do not react under normal conditions, a partition that is provided inside the bottom of the outer container to divide the internal space of the outer container into predetermined areas and to house the foaming agent and the reactive agent, and a protrusion that is provided within the partition to rupture the sealing bag. The simple fire extinguisher is characterized in that the sealing bag ruptures when an impact is applied to the outer container, causing the foaming agent and the reactive agent to react, and the inner bag is pressurized by the foaming of the foaming agent, thereby discharging the fire extinguishing agent.

[0009] (2) Furthermore, in the above (1), the bottom of the outer container has a recessed portion that does not touch the floor when placed on the floor, and the partition portion is provided in the recessed portion. [Effects of the Invention]

[0010] The present invention comprises an inner bag filled with a fire extinguishing agent, an outer container that houses the inner bag, a foaming agent and a reactive agent housed in a compartment at the bottom of the outer container, and a sealed bag that encloses the foaming agent and / or reactive agent. When in use, the outer container is impacted to rupture the sealed bag, causing the foaming agent and the reactive agent to react, and the foaming agent pressurizes the inner bag, discharging the fire extinguishing agent. This eliminates the need to fill the container with high-pressure gas as in conventional aerosol types. This allows for increased amounts of fire extinguishing agent and a smaller container, improving convenience.

[0011] Furthermore, because no high-pressure gas is used, the risk of the container bursting due to high temperatures or being dropped (impacted) is reduced, and restrictions on the container's strength can be relaxed. Therefore, in addition to the metal containers used in conventional aerosol containers, containers made from materials such as resin can also be used, and thinner containers are possible. This improves the container's chemical resistance and diversity of shapes, contributing to weight reduction and cost reduction. Furthermore, the extinguishing agent can be released even when the container is in a horizontal or upside-down position, so there are no restrictions on the orientation of use as there are with aerosol types. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is an explanatory diagram of a simple fire extinguisher according to an embodiment of the present invention, and is a partially see-through side view. FIG. [Figure 2] FIG. 4 is a diagram showing an example of the internal structure of the lid member. [Figure 3] 10 is a partially see-through side view illustrating another aspect of the simple fire extinguisher according to the embodiment of the present invention. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0013] 1, a simple fire extinguisher 1 according to one embodiment of the present invention comprises an inner bag 5 filled with a fire extinguishing agent 3, an outer container 7 that houses the inner bag 5, a lid member 9 that covers the mouths of the inner bag 5 and the outer container 7, a foaming agent 11, a reactant 13 that foams the foaming agent 11, an enclosing bag 15 that encloses the reactant 13, a partition 17 that houses the foaming agent 11 and the reactant 13, and a protrusion 19 provided within the partition 17. Note that FIG. 1 is a side view of the simple fire extinguisher 1, and shows the interior of the outer container 7 in a see-through manner. Each component will be described in detail below.

[0014] <Inner bag> The inner bag 5 is a bag body that is open at the top, and is filled with a fire extinguishing agent 3. Examples of the fire extinguishing agent 3 include a reinforced liquid, water containing a third-class wetting agent, and a foam fire extinguishing agent.

[0015] <Outer container> The outer container 7 accommodates the inner bag 5, the foaming agent 11, and the reactant 13. Fig. 1 shows an example of an outer container 7 that is open at the top and has a bottomed truncated cone shape, but the shape is not particularly limited, and it may be, for example, a bottomed cylindrical shape. The material of the outer container 7 may be any material that can withstand the internal pressure generated when the foaming agent 11 foams, and may be made of metal or resin, etc. The example in Fig. 1 assumes that the outer container 7 is made of a flexible material such as resin.

[0016] <Cover parts> The lid member 9 is a member that covers the mouths of the inner bag 5 and the outer container 7 when the inner bag 5 is housed in the outer container 7, and a discharge outlet 21 for discharging the fire extinguishing agent 3 is provided at the top of the lid member 9.

[0017] In this embodiment, an on-off valve 23 as shown in FIG. 2 is provided inside the cover member 9 so that the extinguishing agent 3 is not discharged under normal circumstances. The on-off valve 23 is composed of a valve body 25 and a spring 27 that biases the valve body 25 in the closing direction, and under normal circumstances, the connection between the cover member 9 and the inner bag 5 is blocked by the valve body 25 biased by the spring 27 (see Figure 2(a)).

[0018] During use, the foaming of the foaming agent 11 increases the pressure between the inner bag 5 and the outer container 7, causing the inner bag 5 to collapse, and the extinguishing agent 3 in the inner bag 5 pushes up the valve body 25 (see FIG. 2(b)). When the valve body 25 is pushed up, the extinguishing agent 3 flows into the cover member 9 and is discharged from the discharge port 21.

[0019] <Foaming agent> The effervescent agent 11 serves as a pressure source for pressurizing the inner bag 5. Fig. 1 shows an example in which a tablet made of sodium bicarbonate and fumaric acid is used as the effervescent agent 11, but other tablets, powders, liquids, etc. may also be used, and the form is not particularly limited.

[0020] <Reactant> The reactant 13 reacts with the foaming agent 11 to foam the foaming agent 11. Fig. 1 shows an example in which water is used as the reactant, but other liquids, tablets, powders, etc. may also be used, and the form of the reactant is not particularly limited.

[0021] <Enclosed bag> The sealing bag 15 seals the reactant 13, which is water, so that the foaming agent 11 and the reactant 13 do not react with each other under normal conditions. The material of the sealing bag 15 may be any material that has a certain strength so that it will not burst when carried, and may be made of metal or thin resin film. In FIG. 1, only the reactant 13 is enclosed in the sealing bag 15, but depending on the form of the foaming agent 11 and the reactant 13, only the foaming agent 11 may be enclosed in the sealing bag 15, or both the foaming agent 11 and the reactant 13 may be enclosed in the sealing bag 15.

[0022] <Compartment> The partition section 17 is provided inside the bottom of the outer container 7, partitions the internal space of the outer container 7 into predetermined regions, and accommodates the foaming agent 11 and the reactant 13. In this embodiment, the partition section 17 is formed by a partition wall 29 erected inside the bottom of the outer container 7.

[0023] <Protrusion> The protrusion 19 is, for example, a hemispherical protrusion provided inside the partition 17, and collides with the sealing bag 15 when an external impact is applied, causing the sealing bag 15 to burst. The shape of the protrusion 19 is not limited to the hemispherical shape shown in FIG. 1, but may also be triangular in cross section (see FIG. 3) or needle-like. However, if the tip of the protrusion 19 is sharp, there is a risk that the sealing bag 15 will burst due to vibrations during transport, so a rounded shape is preferable. Furthermore, multiple protrusions 19 may be provided. The protrusion 19 is intended to make the sealing bag 15 easier to burst, and may be designed so that the sealing bag 15 can be broken simply by an impact intentionally applied by the user, for example.

[0024] As described above, by storing the foaming agent 11 and the reacting agent 13 in the compartment 17 provided at the bottom of the outer container 7, the outer container 7 can be carried with the foaming agent 11 and the reacting agent 13 held at the bottom. Therefore, if an impact is applied to the bottom during use, the protrusion 19 can be almost certainly caused to collide with the sealing bag 15. Furthermore, since the foaming agent 11 and the reacting agent 13 are close to each other, when the sealing bag 15 ruptures and the reacting agent 13 flows out, it immediately comes into contact with the foaming agent 11 and begins to foam, allowing the fire extinguishing agent 3 to be released quickly.

[0025] Next, the use of the simple fire extinguisher 1 of this embodiment will be specifically described. When a fire needs to be extinguished, the user applies a predetermined impact to the outer container 7 to rupture the sealed bag 15 enclosing the reactant 13. As described above, the sealed bag 15 enclosing the reactant 13 is held at the bottom of the outer container 7, so it is advisable to apply an impact by, for example, slamming the bottom of the outer container 7 onto a desk.

[0026] When an external impact is applied, the protrusion 19 collides with the sealing bag 15, causing the sealing bag 15 to burst, and the reactant 13 flowing out of the sealing bag 15 comes into contact with the foaming agent 11 and reacts with it, causing the foaming agent 11 to foam. As the foaming progresses, the internal pressure between the outer container 7 and the inner bag 5 increases, and the inner bag 5 is pressurized. When the inner bag 5 is crushed by the pressurization of the foaming agent 11, the fire extinguishing agent 3 filled in the inner bag 5 presses the valve element 25 of the on-off valve 23 provided on the lid member 9, pushing the valve element 25 upward in the opening direction. When the on-off valve 23 is opened, the extinguishing agent 3 in the inner bag 5 flows into the inside of the lid member 9, and the extinguishing agent 3 is discharged from the discharge port 21 provided at the tip of the lid member 9, thereby extinguishing the fire. At this time, the fire extinguishing agent 3 continues to be discharged due to the pressure exerted by the foaming agent 11, so the user does not need to press the outer container 7 with the hand that is holding it.

[0027] Furthermore, the opening degree of the on-off valve 23 stabilizes when the force of the extinguishing agent 3 pushing the valve element 25 in the opening direction as the foaming agent 11 is pressurized balances with the force of the spring 27 urging the valve element 25 in the closing direction. When the opening degree of the on-off valve 23 stabilizes, the extinguishing agent 3 is discharged at a constant rate, thereby enabling stable fire extinguishing. Furthermore, by adjusting the biasing force of the spring 27 in accordance with the foaming properties of the foaming agent 11, it is possible to arbitrarily set the amount of fire extinguishing agent 3 to be discharged and the time for which the discharge can continue.

[0028] Next, another aspect of the simple fire extinguisher 1 of this embodiment is shown in Fig. 3. In Fig. 3, the same components as those in the simple fire extinguisher 1 of Fig. 1 are given the same reference numerals and description thereof will be omitted. 3 has a recessed portion 33 at the bottom of the outer container 7, which does not come into contact with the floor when placed on the floor. A partition portion 17 is provided inside the recessed portion 33.

[0029] As described above, by providing the partition 17 in the part that does not ground the ground, direct impact is less likely to be applied to the foaming agent 11 and the reactant 13 contained in the partition 17, and therefore the sealed bag 15 is less likely to burst unexpectedly due to small impacts other than during use, such as vibrations during transportation. Furthermore, when the outer container 7 is made of a flexible material as in this embodiment, the bottom of the outer container 7 may bend and become rounded as shown in Figure 1, but if a recessed portion 33 is provided as shown in Figure 3, the bottom is less likely to bend, and the container feels stable when placed on the floor or the like. The bottom of the outer container 7 may be formed flat without providing the recessed portion 33, and in this case, the same effect as above can be achieved.

[0030] 3 is an example in which a partition lid 35 is provided on the upper part of the partition wall 29. By providing the partition lid 35, the foaming agent 11 and the reacting agent 13 do not come out of the partition part 17 even if the simple fire extinguisher 31 is turned on its side or upside down. Note that it is preferable that the partition wall 29 and / or the partition lid 35 be made of a mesh or the like so as not to become an obstacle when the foaming agent 11 foams.

[0031] As described above, in this embodiment, the foaming of foaming agent 11 pressurizes inner bag 5 to discharge extinguishant 3, eliminating the need to fill the container with high-pressure gas as in conventional aerosol types. This makes it possible to increase the amount of extinguishant 3 and make the container smaller, improving convenience.

[0032] In addition, because no high-pressure gas is used, the risk of the container bursting due to high temperatures or being dropped (impacted) is reduced, and high pressure resistance is not required, so there is a high degree of freedom in the material and shape of the container. This allows the use of materials such as resin, and also makes it possible to make the container thinner, contributing to weight reduction and cost reduction. Furthermore, since the extinguishing agent 3 can be discharged even when the container is placed sideways or upside down, there is no restriction on the orientation during use. [Explanation of symbols]

[0033] 1 Simple fire extinguisher 3. Fire extinguishing agents 5 Inner bag 7 Outer container 9 Lid member 11 Foaming agents 13 Reactants 15 Enclosed bag 17 Compartment 19 Protrusion 21 Discharge port 23 On-off valve 25 Valve body 27 Spring 29 Compartment Wall 31 Simple fire extinguishers (other forms) 33 Depression-shaped portion 35 Compartment lid

Claims

1. A simple fire extinguisher comprising an inner bag filled with a fire extinguishing agent, an outer container that houses the inner bag, and a lid member that covers the mouths of the inner bag and the outer container and has a discharge port through which the fire extinguishing agent is discharged, wherein the fire extinguishing agent is discharged from the discharge port by pressurizing the inner bag, a sealing bag enclosing the foaming agent and / or the reactive agent so that the foaming agent and the reactive agent do not react with each other under normal conditions; a partition section provided inside the bottom of the outer container to divide the internal space of the outer container into predetermined areas and to accommodate the foaming agent and the reactive agent; and a protrusion provided within the partition section to rupture the sealing bag, wherein an impact is applied to the outer container to cause the protrusion to collide with the sealing bag, rupturing the sealing bag and causing the foaming agent and the reactive agent to react with each other, and the foaming agent foams and the inner bag is pressurized by the foaming of the foaming agent, thereby discharging the fire extinguisher.

2. A simple fire extinguishing device comprising an inner bag filled with a fire extinguishing agent, an outer container that houses the inner bag, and a lid member that covers the mouths of the inner bag and the outer container and has a discharge port for discharging the fire extinguishing agent, wherein the fire extinguishing agent is discharged from the discharge port by pressurizing the inner bag, a sealing bag enclosing the foaming agent and / or the reactive agent so that the foaming agent and the reactive agent do not react with each other under normal conditions; and a partition section provided inside the bottom of the outer container, dividing the internal space of the outer container into predetermined regions and accommodating the foaming agent and the reactive agent; wherein the sealing bag is broken by applying an impact to the outer container, causing the foaming agent and the reactive agent to react with each other, and the inner bag is pressurized by the foaming of the foaming agent, thereby discharging the fire extinguisher.

3. 3. The simple fire extinguisher according to claim 1, wherein the bottom of the outer container has a recessed portion that does not contact the floor when placed on the floor, and the partition portion is provided in the recessed portion.

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