Fire extinguishing device

Abstract

The utility model discloses a fire extinguishing device which comprises a fire extinguisher and a box body, the fire extinguisher is fixed in the box body through a fixing piece, the fire extinguisher is connected with an injection pipe extending to the outside of the box body, and a spray head is arranged at the tail end of the injection pipe; a guide plate is arranged above a pressing handle of the fire extinguisher, an electric pushing mechanism and a manual pushing mechanism are movably arranged above the guide plate, and the electric pushing mechanism and the manual pushing mechanism can independently drive the pressing handle of the fire extinguisher to move so as to control a switch of the fire extinguisher. According to the fire extinguishing device, an automatic fire extinguishing function and a manual fire extinguishing function are combined, so that the fire extinguishing device not only can automatically extinguish fire, but also can manually extinguish fire through manual operation, and therefore, flames can be extinguished as soon as possible after a fire occurs.

Description

Technical Field

[0001] The utility model belongs to the technical field of fire-fighting equipment, and particularly relates to a fire extinguishing device. Background Art

[0002] In China, incidents of casualties caused by fires occur frequently every year, bringing huge economic losses. Among them, fires caused by high-temperature weather, electricity use, and fire still account for a relatively large proportion. Therefore, fire extinguishers are widely used. As a portable fire-fighting tool, chemical substances are placed inside a fire extinguisher. The ingredients filled in different types of fire extinguishers are different. Fire extinguishers are usually stored in public places or places where fires may occur, and are designed for different causes of fires to extinguish fires. There are many types of fire extinguishers. According to their moving methods, they can be divided into: portable and cart-type; according to the power source for driving the fire extinguishing agent, they can be divided into: gas cylinder type, pressure storage type, and chemical reaction type; according to the filled fire extinguishing agent, they can be further divided into: foam fire extinguishers, dry powder fire extinguishers, carbon dioxide fire extinguishers, and water-based fire extinguishers, etc.

[0003] There are two containers inside a foam fire extinguisher, which contain two liquids respectively, namely aluminum sulfate and sodium bicarbonate solution. The two solutions do not contact each other and do not undergo any chemical reactions. When a foam fire extinguisher is needed, the fire extinguisher is inverted, and the two solutions are mixed together, and a large amount of carbon dioxide gas will be generated. In addition to the two reactants, some foaming agents are also added to the fire extinguisher. When the switch is opened, the foam is ejected from the fire extinguisher and covers the burning item, isolating the burning substance from the air and reducing the temperature to achieve the purpose of extinguishing the fire.

[0004] The dry powder fire extinguisher is filled with dry powder fire extinguishing agent. The dry powder fire extinguishing agent is a dry and easily flowing fine powder used for extinguishing fires, which is composed of inorganic salts with fire extinguishing efficacy and a small amount of additives through drying, pulverization, and mixing into fine solid powder. It mainly uses compressed carbon dioxide to blow out dry powder (mainly containing sodium bicarbonate) to extinguish fires.

[0005] The bottle body of a carbon dioxide fire extinguisher stores liquid carbon dioxide. When working, when the pressure handle of the bottle valve is pressed, the internal carbon dioxide fire extinguishing agent is ejected from the siphon tube through the bottle valve to the spray nozzle, rapidly decreasing the oxygen concentration in the combustion area. When the carbon dioxide reaches a sufficient concentration, the flame will be suffocated and extinguished. At the same time, since the liquid carbon dioxide will quickly vaporize and absorb a large amount of heat in a very short time, it plays a certain cooling role on the combustible, which also helps to extinguish the fire.

[0006] The fire extinguishing agent in a water-based fire extinguisher is mainly clean water. Water has a low viscosity, high thermal stability, large density, and high surface tension at normal temperature. It mainly extinguishes fires by cooling and asphyxiation effects.

[0007] At present, the fire extinguishers sold on the market include automatic fire extinguishers and manual fire extinguishers. When a fire breaks out, the automatic fire extinguisher senses the temperature through a sensor and automatically opens the valve to extinguish the fire without manual operation. However, when the indoor temperature is not very high or the fire starting position is not near the sensor, the sensor of the automatic fire extinguisher does not detect the emergence of a flame, and at this time, the automatic fire extinguisher will not automatically open the valve to extinguish the fire, which may allow the flame to spread. The manual fire extinguisher is generally placed in a special box for fire-fighting equipment or hung on the wall. When a fire breaks out, people can quickly use this manually-operable fire-fighting equipment to extinguish the initial flame. This fire extinguisher needs to be manually operated to play the role of extinguishing the fire. If there is no one around, it cannot play the role of extinguishing the fire. As a person skilled in the art, it is necessary to provide a fire extinguishing device that can be operated manually and automatically. Summary of the Invention

[0008] The purpose of the present utility model is to provide a fire extinguishing device to solve the above problems existing in the prior art.

[0009] To achieve the above purpose, the present utility model adopts the following technical solutions: A fire extinguishing device includes a fire extinguisher and a box body. The fire extinguisher is fixed inside the box body through a fixing member. The fire extinguisher is connected with a spray pipe extending to the outside of the box body, and a nozzle is provided at the end of the spray pipe. Above the pressure handle of the fire extinguisher, there is a guide plate. An electric push mechanism and a manual push mechanism are movably arranged above the guide plate. Both the electric push mechanism and the manual push mechanism can independently drive the pressure handle of the fire extinguisher to move, thereby controlling the switch of the fire extinguisher.

[0010] As an optional implementation manner of the above technical solution, a first guide hole is provided on the guide plate, and the movable end of the electric push mechanism can pass through the first guide hole and press the pressure handle of the fire extinguisher.

[0011] As an optional implementation manner of the above technical solution, the electric push mechanism includes an electric push rod. The movable end of the electric push rod is slidably matched with the first guide hole. The electric push rod is connected with a controller, and the controller is connected with a temperature sensor.

[0012] As an optional implementation manner of the above technical solution, an alarm is provided on the box body, and the alarm is connected to the controller.

[0013] As an optional implementation manner of the above technical solution, a second guide hole is provided on the guide plate, and the movable end of the manual push mechanism can pass through the second guide hole and press the pressure handle of the fire extinguisher.

[0014] As an alternative embodiment of the above technical solution, the manual pushing mechanism includes a manual push rod, which is inserted into the second guiding hole, and the manual push rod is provided with a locking member.

[0015] As an alternative embodiment of the above technical solution, the locking member includes a locking pin. A locking hole is formed on the manual push rod, and the locking pin is inserted into the locking hole to lock the manual push rod.

[0016] As an alternative embodiment of the above technical solution, one end of the manual push rod away from the handle of the fire extinguisher extends to the outside of the box body and is connected with a pressing head.

[0017] As an alternative embodiment of the above technical solution, the fixing member includes an arc-shaped fixing plate, and the arc-shaped fixing plate is connected to the box body by screws.

[0018] As an alternative embodiment of the above technical solution, a box door is provided on the box body, and the box door is installed on the box body through a hinge.

[0019] As an alternative embodiment of the above technical solution, the fire extinguisher is a water-based fire extinguisher.

[0020] The beneficial effects of the present utility model are as follows:

[0021] The present utility model provides a fire extinguishing device. A guiding plate is provided above the handle of the fire extinguisher. An electric pushing mechanism and a manual pushing mechanism are movably arranged above the guiding plate. Both the electric pushing mechanism and the manual pushing mechanism can independently drive the handle of the fire extinguisher to move, thereby controlling the opening and closing of the fire extinguisher. Both the electric pushing mechanism and the manual pushing mechanism can be used independently, so that in case of a fire, manual or automatic fire extinguishing can be carried out according to the fire situation. The present utility model combines the automatic fire extinguishing function with the manual fire extinguishing function, so that the fire extinguishing device can not only carry out automatic fire extinguishing, but also be manually operated for manual fire extinguishing, so that the fire can be extinguished as soon as possible after a fire breaks out. Description of the Drawings

[0022] Figure 1 is a schematic diagram of the external structure of the fire extinguishing device in an embodiment of the present utility model;

[0023] Figure 2 is a schematic diagram of the internal structure of the fire extinguishing device in an embodiment of the present utility model.

[0024] In the figure: 1 - fire extinguisher; 2 - box body; 3 - spray pipe; 4 - nozzle; 5 - guiding plate; 6 - electric pushing mechanism; 7 - manual pushing mechanism; 8 - electric push rod; 9 - alarm; 10 - manual push rod; 11 - locking pin; 12 - pressing head; 13 - arc-shaped fixing plate; 14 - box door. Detailed Embodiments

[0025] As Figure 1 and Figure 2 shown, this embodiment provides a fire extinguishing device, which includes a fire extinguisher 1 and a box body 2. The fire extinguisher 1 is fixed inside the box body 2 through a fixing member. The fixing member includes an arc-shaped fixing plate 13. The arc-shaped fixing plate 13 is connected to the box body 2 by screws to keep the fire extinguisher 1 stationary. The fire extinguisher 1 is connected with a spray pipe 3 extending outside the box body 2, and a nozzle 4 is provided at the end of the spray pipe 3. After the fire extinguisher 1 is opened, the fire extinguishing agent is ejected from the nozzle 4 through the spray pipe 3 to extinguish the fire.

[0026] Among them, the fire extinguisher 1 is a water-based fire extinguisher. The fire extinguishing agent in the water-based fire extinguisher is mainly clean water. Water has a low viscosity, high thermal stability, large density and high surface tension at normal temperature. It mainly relies on cooling and asphyxiation to extinguish fires. Because every kilogram of water can absorb 2593.4 KJ of heat when heated from normal temperature to boiling point and completely evaporated and vaporized. Therefore, it exerts a cooling fire extinguishing effect by using its own ability to absorb sensible heat and latent heat, which is incomparable to other fire extinguishing agents. In addition, the water vapor formed after water is vaporized is an inert gas, and its volume will expand about 1700 times. During fire extinguishing, the water vapor generated by the vaporization of water will occupy the space of the combustion area, dilute the oxygen content around the combustibles, prevent fresh air from entering the combustion area, and greatly reduce the oxygen concentration in the combustion area, so as to achieve the purpose of asphyxiating fire extinguishing. When water is in the form of spray mist, the specific surface area of the formed water droplets and fog droplets will be greatly increased, enhancing the heat exchange effect between water and fire, thereby strengthening its cooling and asphyxiation effects. In addition, it can also play a diluting role for some combustible and flammable liquids that are easily soluble in water; the water mist generated by strong jets can emulsify combustible and flammable liquids, quickly cool the liquid surface, and reduce the generation rate of combustible vapor to achieve the purpose of fire extinguishing.

[0027] As Figure 2 shown, a guide plate 5 is provided above the handle of the fire extinguisher 1. An electric pushing mechanism 6 and a manual pushing mechanism 7 are movably provided above the guide plate 5. Both the electric pushing mechanism 6 and the manual pushing mechanism 7 can independently drive the handle of the fire extinguisher 1 to move, so as to control the switch of the fire extinguisher 1. Both the electric pushing mechanism 6 and the manual pushing mechanism 7 can be used independently, so that in case of a fire, it can be manually or automatically extinguished according to the fire situation.

[0028] The utility model combines the automatic fire extinguishing function with the manual fire extinguishing function, so that the fire extinguishing device can not only extinguish fires automatically, but also be manually operated to extinguish fires, so that the fire can be extinguished as soon as possible after a fire breaks out.

[0029] In one embodiment, a first guiding hole is provided on the guiding plate 5, and the movable end of the electric pushing mechanism 6 can pass through the first guiding hole and press the handle of the fire extinguisher 1. The electric pushing mechanism 6 includes an electric push rod 8, the movable end of the electric push rod 8 is slidably matched with the first guiding hole, the electric push rod 8 is connected with a controller, and the controller is connected with a temperature sensor. An alarm 9 is provided on the box body 2, and the alarm 9 is connected with the controller. When the detected temperature of the temperature sensor reaches 60 °C, the movable end of the electric push rod 8 presses the handle of the fire extinguisher 1, and the fire extinguisher 1 sprays fire extinguishing agent to extinguish the fire.

[0030] In one embodiment, a second guiding hole is provided on the guiding plate 5, and the movable end of the manual pushing mechanism 7 can pass through the second guiding hole and press the handle of the fire extinguisher 1. The manual pushing mechanism 7 includes a manual push rod 10, the manual push rod 10 is inserted into the second guiding hole, and the manual push rod 10 is provided with a locking member to prevent accidental touch. Specifically, the locking member includes a locking pin 11, a locking jack is provided on the manual push rod 10, and the locking pin 11 is inserted into the locking jack to lock the manual push rod 10. One end of the manual push rod 10 away from the handle of the fire extinguisher 1 extends to the outside of the box body 2 and is connected with a pressing head 12. When manual operation of the fire extinguisher 1 is required, the locking pin 11 is manually pulled out, and the pressing head 12 is pressed, so that the bottom end of the manual push rod 10 presses the handle of the fire extinguisher 1, and the fire extinguisher 1 sprays fire extinguishing agent to extinguish the fire.

[0031] As Figure 1 shown, in this embodiment, a box door 14 is provided on the box body 2, and the box door 14 is installed on the box body 2 through hinges. After the box door 14 is opened and the fire extinguisher 1 is installed in place through the arc-shaped fixing plate 13, the safety pin of the fire extinguisher 1 needs to be pulled out to ensure that both the electric pushing mechanism 6 and the manual pushing mechanism 7 can drive the handle of the fire extinguisher 1 to move. The fire extinguishing device has a simple and reasonable structure, can be flexibly arranged, occupies less space, and has high practicability.

[0032] In the description of the present utility model, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, and may be fixedly connected, detachably connected, or integrated; may be mechanically connected or electrically connected; may be directly connected or indirectly connected through an intermediate medium, may be the internal connection of two components or the interaction relationship between two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood. In addition, the specific features, structures, etc. described in the embodiments are included in at least one embodiment. In the absence of mutual contradictions, those skilled in the art may combine the features of different embodiments. The scope of protection of the present utility model is not limited to the above-mentioned specific embodiments. According to the basic technical concept of the present utility model, the embodiments that can be associated with by ordinary technicians in this field without creative work all belong to the scope of protection of the present utility model.

Claims

1. A fire extinguishing device, characterized in that, It includes a fire extinguisher (1) and a box body (2). The fire extinguisher (1) is fixed inside the box body (2) by a fixing member. The fire extinguisher (1) is connected with a spray pipe (3) extending to the outside of the box body (2), and a nozzle (4) is provided at the end of the spray pipe (3); above the handle of the fire extinguisher (1), there is a guide plate (5). An electric pushing mechanism (6) and a manual pushing mechanism (7) are movably arranged above the guide plate (5). Both the electric pushing mechanism (6) and the manual pushing mechanism (7) can independently drive the handle of the fire extinguisher (1) to move, so as to control the switch of the fire extinguisher (1).

2. The fire extinguishing device according to claim 1, wherein The guide plate (5) is provided with a first guide hole, and the movable end of the electric pushing mechanism (6) can pass through the first guide hole and press the handle of the fire extinguisher (1).

3. The fire extinguishing device according to claim 2, wherein, The electric pushing mechanism (6) includes an electric push rod (8). The movable end of the electric push rod (8) is slidably matched with the first guide hole. The electric push rod (8) is connected with a controller, and the controller is connected with a temperature sensor; an alarm (9) is provided on the box body (2), and the alarm (9) is connected with the controller.

4. The fire extinguishing device according to claim 1, characterized in that, The guide plate (5) is provided with a second guide hole, and the movable end of the manual pushing mechanism (7) can pass through the second guide hole and press the handle of the fire extinguisher (1).

5. The fire extinguishing device according to claim 4, characterized in that, The manual pushing mechanism (7) includes a manual push rod (10). The manual push rod (10) is inserted into the second guide hole, and the manual push rod (10) is provided with a locking member.

6. The fire extinguishing device according to claim 5, characterized in that, The locking member includes a locking pin (11). A locking jack is formed on the manual push rod (10), and the locking pin (11) is inserted into the locking jack to lock the manual push rod (10).

7. The fire extinguishing device according to claim 5, characterized in that, One end of the manual push rod (10) far from the handle of the fire extinguisher (1) extends to the outside of the box body (2) and is connected with a pressing head (12).

8. The fire extinguishing device according to claim 1, characterized in that, The fixing member includes an arc-shaped fixing plate (13), and the arc-shaped fixing plate (13) is connected with the box body (2) by screws.

9. The fire extinguishing device according to claim 1, characterized in that A box door (14) is provided on the box body (2), and the box door (14) is installed on the box body (2) through hinges.

10. The fire extinguishing device according to claim 1, characterized in that, The fire extinguisher (1) is a water-based fire extinguisher.

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