Bag type foam fire extinguisher
By designing a bag-type foam fire extinguisher, the solution is stored in different compartments and mixed to produce carbon dioxide and foam. The foam is then released by depressurizing through a pre-depressurization port, solving the problems of complex operation and strict storage requirements of existing fire extinguishers, and achieving a simple and efficient fire extinguishing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-03-31
AI Technical Summary
Most existing foam fire extinguishers are canister-type, which has a high operating threshold. They are inconvenient for people who lack firefighting experience or have weak physical strength. In addition, they have strict storage requirements and are prone to failure due to environmental factors, resulting in untimely fire extinguishing.
Design a bag-type foam fire extinguisher, which uses a first compartment and a second compartment to store different solutions. The solutions are mixed through a squeezing port to generate carbon dioxide and foam. The solution is then released from high pressure through a pre-depressurization port to extinguish the fire.
Simplified operation, reduced physical exertion, small size and light weight, suitable for hotel rooms and residential buildings, improving fire extinguishing efficiency and avoiding poor fire extinguishing effect caused by high pressure rupture.
Smart Images
Figure CN224056520U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of fire extinguishers, in particular to a bag type foam fire extinguisher. BACKGROUND
[0002] The principle of foam fire extinguisher is that a large amount of carbon dioxide and foam can be sprayed during extinguishing, which can adhere to the combustible material to isolate the combustible material from the air, so as to achieve the purpose of extinguishing fire.
[0003] Foam fire extinguishers are generally divided into hand-held foam fire extinguishers, trolley foam fire extinguishers and air foam fire extinguishers. Foam fire extinguishers should be stored in a dry, cool, ventilated and convenient place, and should not be close to high temperature or may be exposed to sunlight, so as to prevent carbon decomposition and failure; frost protection measures should be taken in winter to prevent freezing; and dust should be removed and the nozzle should be kept unobstructed. Therefore, the combustible material is generally away from the fire extinguisher, so that the fire extinguishing is not timely.
[0004] In addition, the existing foam fire extinguishers are mostly canned, which has a certain operation threshold, and it is not convenient for people who lack fire fighting experience and have weak physical strength to use. CONTENT OF THE INVENTION
[0005] In order to solve the above problems, the present application provides a bag type foam fire extinguisher, which comprises a fire extinguisher body, the fire extinguisher body comprises a first cabin, a second cabin and a squeezing port; the squeezing port is located between the first cabin and the second cabin;
[0006] The first cabin is used for storing a first solution, and the second cabin is used for storing a second solution; when being squeezed, the first solution in the first cabin enters the second cabin through the squeezing port to react with the second solution to generate carbon dioxide and foam.
[0007] As a preferred scheme, the first cabin is located at the right side of the inside of the fire extinguisher body, and the second cabin is located at the left side of the inside of the fire extinguisher body.
[0008] As a preferred scheme, the first cabin is used for front roll squeezing, so that the first solution in the first cabin enters the second cabin through the squeezing port.
[0009] As a preferred scheme, the bottom of the second cabin is provided with five pre-pressure relief ports; the pre-pressure relief ports are used for spraying carbon dioxide and foam when the internal pressure reaches a threshold value.
[0010] As a preferred scheme, the shape of the pre-pressure relief port is rectangular, and the width of the rectangle is parallel to the long side of the fire extinguisher body, and the length of the rectangle is parallel to the narrow side of the fire extinguisher body.
[0011] As a preferred scheme, 5 of the pre-pressure relief ports are arranged side by side, and the two adjacent pre-pressure relief ports overlap each other.
[0012] As a preferred scheme, two easy-to-tear ports are arranged along the diagonal of the rectangle at the pre-pressure relief port; the easy-to-tear ports are ruptured when the internal pressure reaches a threshold value to extinguish the fire and relieve the pressure.
[0013] As a preferred scheme, the second solution is an aqueous aluminum sulfate solution; an anticorrosive coating is arranged inside the second chamber to prevent the aqueous aluminum sulfate solution from corroding the second chamber.
[0014] As a preferred scheme, the first solution is a mixed solution of sodium bicarbonate and a foaming agent.
[0015] The two squeeze ports are arranged side by side between the first chamber and the second chamber.
[0016] As a preferred scheme, a sealing line is arranged in the middle of the squeeze port.
[0017] Compared with the prior art, the present application has the following beneficial effects:
[0018] The present application is simple and convenient to use, has a relatively small cost, and consumes less physical strength. Compared with the traditional fire extinguisher, the present application has a small volume and light weight, and can be used in hotel rooms and residential buildings as emergency fire-fighting equipment to reduce the consequences of small fire accidents.
[0019] The front-rolling squeezing manner makes the mixing of the solutions more sufficient, and can generate more carbon dioxide and foam.
[0020] By arranging the pre-pressure relief port, when the pressure in the second chamber reaches a threshold value, the carbon dioxide and foam in the second chamber can be sprayed out through the pre-pressure relief port, so that the fire can be extinguished at the same time as the pressure is relieved, avoiding the rupture of the second chamber due to excessive internal pressure before the combustible material is reached, and causing poor fire extinguishing effect.
[0021] The pre-pressure relief port has a special shape, and through the rectangular structure and the side-by-side arrangement, the fire can be better extinguished at the same time as the pressure is relieved. BRIEF DESCRIPTION OF DRAWINGS
[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.
[0023] The structure, proportion, size and the like shown in the drawings of the specification are only used to cooperate with the content disclosed in the specification, to be understood and read by those skilled in the art, and are not used to limit the conditions that can be implemented by the present application, so they do not have technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.
[0024] Figure 1 is a structural schematic diagram of a bag-type fire extinguisher in an embodiment of the present application;
[0025] Figure 2 is a schematic diagram of a pre-pressure relief port and a squeeze port of a bag-type fire extinguisher in an embodiment of the present application. DETAILED DESCRIPTION
[0026] In order for those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application.
[0027] In the description of the present application, it should be understood that the orientation or position relationship indicated by the terms and the like is based on the orientation or position relationship shown in the drawings, and is only for the purpose of describing the present application and simplifying the description, and does not indicate or imply that the devices, elements, modules, systems, platforms or devices referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. The following description of the present application is only for the purpose of understanding as a description of individual embodiments of the technical solutions of the present application, and other embodiments are not embodied in the following description, but it does not mean that the present application excludes these other embodiments, and the technical solutions of the present application are also not limited to the specific embodiments described below, and the protection scope of the present application is not limited to only the specific embodiments described below. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should fall within the scope of protection of the present application.
[0028] It is to be noted that, if the terms "first", "second" and the like appear in the description and claims of the present application and the above-described drawings, the description is only for distinguishing similar objects, and does not have to be used to describe a particular order or sequence. It should be understood that the data thus used can be interchanged, where appropriate, so that the embodiments of the present application described herein can be carried out in other than the order shown or described herein. Furthermore, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a system, product or apparatus that comprises a list of elements or modules or modules or components does not have to be limited to those elements or modules or modules or components that are clearly listed, but can include other elements or modules or modules or components that are not clearly listed or inherent to such systems, products or apparatus.
[0029] The technical solutions of the present application are further illustrated below in conjunction with the drawings and through specific embodiments.
[0030] In some embodiments, as shown in Figures 1-2 The present application provides a bag-type foam fire extinguisher, which comprises a fire extinguisher body 3, the fire extinguisher body 3 comprising a first cabin 2, a second cabin 1 and a squeeze opening 4; the squeeze opening 4 is located between the first cabin 2 and the second cabin 1; the first cabin 2 is used for storing a first solution, and the second cabin 1 is used for storing a second solution. A sealing line is arranged in the middle of the squeeze opening 4, and the first solution can break through the sealing line when the first cabin 2 is squeezed.
[0031] When the bag-type foam fire extinguisher of the present application is squeezed, the first solution in the first cabin 2 enters the second cabin 1 through the squeeze opening 4 to react with the second solution to produce carbon dioxide and foam, so that the carbon dioxide and foam can be used for fire extinguishing, and it is not necessary to take the fire extinguisher to a fixed place for use, and fire extinguishing can be carried out anytime and anywhere, and the efficiency is high.
[0032] Specifically, the first solution in the first cabin 2 can enter the second cabin 1 through the squeeze opening 4 by forward roll squeezing of the first cabin 2.
[0033] In some embodiments, the first cabin 2 is located at the right side of the inside of the fire extinguisher body 3, and the second cabin 1 is located at the left side of the inside of the fire extinguisher body 3.
[0034] In some embodiments, as shown in Figure 2 The bottom of the second cabin 1 is provided with five pre-pressure relief openings 5; the pre-pressure relief openings 5 are used for spraying carbon dioxide and foam when the internal pressure reaches a threshold value.
[0035] Specifically, the pre-pressure relief port 5 is preferably rectangular in shape, with the width of the rectangle parallel to the long side of the fire extinguisher body 3 and the length of the rectangle parallel to the narrow side of the fire extinguisher body 3. Five pre-pressure relief ports 5 can be arranged side by side, with the width of two adjacent pre-pressure relief ports 5 overlapping, so that better pressure relief and carbon dioxide and foam spraying can be achieved to better extinguish the fire.
[0036] The pre-pressure relief port 5 is provided with two tearable ports (not shown in the figure) along the diagonal of the rectangle. The tearable ports break when the internal pressure reaches a threshold value to extinguish the fire and relieve the pressure.
[0037] In some embodiments, the second solution can be an aqueous aluminum sulfate solution. The second chamber 2 is provided with an anti-corrosion coating (not shown in the figure) to prevent the aqueous aluminum sulfate solution from corroding the second chamber 2.
[0038] In some embodiments, the first solution can be a mixed solution of sodium bicarbonate and a foaming agent. The squeeze port 4 is two, and the two squeeze ports 4 are arranged side by side between the first chamber 2 and the second chamber 1, so that the first solution can quickly and uniformly enter the second chamber 1 to mix with the second solution.
[0039] If the fire source is far away from the traditional fire extinguisher, and the nearby person is not familiar with the operation of the traditional fire extinguisher, when the application is used, the operator can squeeze the first chamber 2 by the front roll to make the mixed solution of sodium bicarbonate and a foaming agent in the first chamber 2 flow to the second chamber 1 through the middle squeeze port 4 and react with the aqueous aluminum sulfate solution in the second chamber 1 to generate a large amount of carbon dioxide and foam. After the squeezing is completed, it is thrown and contacted with the fire. The external material of the fire extinguisher body 3 melts and penetrates. During this period, when the internal pressure of the second chamber 1 reaches a threshold value, the internal carbon dioxide and foam can be sprayed out through the pre-pressure relief port 5 to relieve the pressure and can adhere to the combustible material, so that the combustible material is isolated from the air, and the purpose of extinguishing the fire can also be achieved.
[0040] The technical features of the above embodiments can be combined in any way. To make the description concise, not all possible combinations of the technical features in the above embodiments are described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the present application.
[0041] The above-described embodiments only express several implementation manners of the present application, and are only used to illustrate the technical solutions of the present application, but not limit the same; although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently; and the modification or replacement does not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solutions of the embodiments of the present application; and those skilled in the art can make several modifications and improvements without departing from the concept of the present application, and these all belong to the protection scope of the present application.
Claims
1. A bag-type foam fire extinguisher comprising a fire extinguisher body, characterized in that: the fire extinguisher body comprises a first chamber, a second chamber and a squeeze opening; the squeeze opening is located between the first chamber and the second chamber; the first chamber is used to store a first solution, and the second chamber is used to store a second solution; when squeezed, the first solution in the first chamber enters the second chamber through the squeeze opening to react with the second solution to generate carbon dioxide and foam.
2. The bag-type foam fire extinguisher according to claim 1, characterized in that: the first chamber is located on the right side of the inside of the fire extinguisher body, and the second chamber is located on the left side of the inside of the fire extinguisher body.
3. The bag-type foam fire extinguisher according to claim 1, characterized in that: the first chamber is used for front roll squeezing so that the first solution in the first chamber enters the second chamber through the squeeze opening.
4. The bag-type foam fire extinguisher according to claim 1, characterized in that: the bottom of the second chamber is provided with five pre-pressure relief openings; the pre-pressure relief openings are used to spray carbon dioxide and foam when the internal pressure reaches a threshold value.
5. The bag-type foam fire extinguisher according to claim 4, characterized in that: the pre-pressure relief openings are rectangular in shape, and the width of the rectangle is parallel to the long side of the fire extinguisher body, and the length of the rectangle is parallel to the narrow side of the fire extinguisher body.
6. The bag-type foam fire extinguisher according to claim 5, characterized in that: the five pre-pressure relief openings are arranged side by side, and the width of two adjacent pre-pressure relief openings overlaps.
7. The bag-type foam fire extinguisher according to claim 6, characterized in that: the pre-pressure relief openings are provided with two easy-to-tear openings along the diagonal of the rectangle; the easy-to-tear openings are broken when the internal pressure reaches a threshold value to extinguish the fire and relieve the pressure.
8. The bag-type foam fire extinguisher according to claim 1, characterized in that: the second solution is an aqueous aluminum sulfate solution; the inside of the second chamber is provided with a corrosion-resistant coating to prevent the aqueous aluminum sulfate solution from corroding the second chamber.
9. The bag-type foam fire extinguisher according to claim 8, characterized in that: the first solution is a mixed solution of sodium bicarbonate and a foaming agent; the squeeze opening is two, and the two squeeze openings are arranged side by side between the first chamber and the second chamber.
10. The bag-type foam fire extinguisher according to claim 1, characterized in that: a sealing line is arranged in the middle of the squeeze opening.