Fire extinguishing device with power-off function

Abstract

The fire extinguishing device with the power-off function comprises a shell, the shell comprises an insulating ring located in the middle area, the two sides of the insulating ring are connected with a conductive end cover through a conductive ring, the conductive end cover is connected with a wire, an H-shaped conductive sliding block matched with the shell is arranged in the shell, and the H-shaped conductive sliding block is connected with the insulating ring. The two ends of the H-shaped conductive sliding block make contact with the inner side of the conductive ring, a fire extinguishing device is arranged in a cavity between one end of the H-shaped conductive sliding block and the conductive end cover, and a nozzle is formed in the surface, where the fire extinguishing device is located, of the conductive ring. According to the utility model, when a fire occurs, an electric wire can be rapidly subjected to a circuit breaking process, and no danger exists in the circuit breaking process, so that life safety is ensured, and timely and effective power failure can be realized; meanwhile, the device provided by the utility model can release aerosol fire extinguishing substances, thereby achieving the purpose of extinguishing fire in the surrounding area of the electric wire.

Description

Technical Field

[0001] The utility model relates to the technical field of fire extinguishing, in particular to a fire extinguishing device with a power-off function. Background Art

[0002] When an electrical fire occurs, due to tension and panic, people often have accidents in operation. For fires with small size and small fire area, fire-fighting equipment can be used on the spot to extinguish the fire and disconnect the power supply close to the fire source. When disconnecting the power supply, the circuit breaker must be turned off first, and then the isolating switch or knife switch can be cut off. The steps are cumbersome and dangerous. When the fire is very fierce, there is no time to cut off the power supply with a switch. At this time, the wires can be cut short or the wires can be made to have no power. However, there will be greater danger in the process of cutting off the power supply. Therefore, how to relatively ensure life safety and be able to cut off power in a timely and effective manner is a big problem.

[0003] With the continuous development of society, the types and quantity of various electrical appliances are gradually increasing. Most electrical appliances need to be kept in a long-term standby state when working. Electrical appliances will generate high temperatures when powered on. As electrical appliances age, they are very likely to cause electrical fires. In addition to timely extinguishing the fire after an electrical appliance catches fire, the power supply should be cut off immediately. If the fire is extinguished when the electrical equipment is powered on, it will be difficult to extinguish the fire, and it is easy for people to get electric shocks and electrical appliances to explode during the rescue process.

[0004] In actual scenarios, electrical fires may cause large fires, making it difficult or impossible to cut off power in time, which greatly increases the difficulty of firefighting. Utility Model Content

[0005] The purpose of the utility model is to overcome the above-mentioned shortcomings and provide a fire extinguishing device with a power-off function to solve the problems raised in the background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is: a fire extinguishing device with a power-off function, including a shell, the shell including an insulating ring located in the middle area, the two sides of the insulating ring are connected to the conductive end caps through conductive rings, the conductive end caps are connected to the wires, an H-shaped conductive slider matching with the shell is provided, both ends of the H-shaped conductive slider are in contact with the inner side of the conductive ring, a fire extinguishing device is provided in the cavity between one end of the H-shaped conductive slider and the conductive end cap, and a nozzle is provided on the surface of the conductive ring where the fire extinguishing device is located.

[0007] Preferably, the H-shaped conductive slider is interference fit with the inner side of the housing.

[0008] Preferably, a stopper is fixedly provided at a position on the inner side of the housing that contacts the H-shaped conductive slider.

[0009] Preferably, the fire extinguishing device comprises a shell and an aerosol generator arranged in the shell, one end of the aerosol generator is connected to the starting component, and a spray hole is opened on the surface of the shell, and the spray hole faces one end of the H-shaped conductive slider.

[0010] Preferably, the fire extinguishing device includes a shell and a liquid fire extinguishing agent arranged in the shell, a gas producing chamber is provided in the liquid fire extinguishing agent, an aerosol generating agent is provided in the gas producing chamber, one end of the aerosol generating agent is connected to the starting component, a spray hole is opened on the surface of the shell, the spray hole faces one end of the H-shaped conductive slider, and the surface of the spray hole is covered with a sealing film.

[0011] Preferably, the starting component is a thermistor structure or an electric starter structure.

[0012] Preferably, an air pressure balance hole is also provided on the surface of the shell.

[0013] Beneficial effects of the utility model:

[0014] The device of the utility model can quickly cut off the circuit of the electric wire when a fire occurs, and there is no danger during the cutting process, thereby ensuring life safety and being able to cut off the power in a timely and effective manner; at the same time, the device of the utility model can release aerosol fire extinguishing substances to achieve the purpose of extinguishing the fire in the area around the electric wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of a fire extinguishing device with a power-off function;

[0016] Figure 2 for Figure 1 A schematic diagram of the front view structure of

[0017] Figure 3 for Figure 2 BB cross-sectional structure diagram;

[0018] Figure 4 It is a structural schematic diagram of the fire extinguishing device corresponding to the second embodiment. DETAILED DESCRIPTION

[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] like Figure 1-4As shown, a fire extinguishing device with a power-off function comprises a shell 1, wherein the shell 1 comprises an insulating ring 3 located in a middle area, wherein both sides of the insulating ring 3 are connected to a conductive end cap 5 via a conductive ring 4, wherein the conductive end cap 5 is connected to a wire 2, wherein an H-shaped conductive slider 6 matching with the shell 1 is arranged inside the shell 1, wherein both ends of the H-shaped conductive slider 6 are in contact with the inner side of the conductive ring 4, wherein a fire extinguishing device 7 is arranged in a cavity between one end of the H-shaped conductive slider 6 and the conductive end cap 5, and a nozzle 10 is provided on the surface of the conductive ring 4 where the fire extinguishing device 7 is located.

[0021] When a fire does not occur, the H-shaped conductive slider 6 cannot slide in the housing 1 , and the H-shaped conductive slider 6 can be limited in position by the following two implementations.

[0022] Embodiment 1: The H-shaped conductive slider 6 is interference fit with the inner side of the housing 1. By means of interference fit, an extrusion resistance is generated between the H-shaped conductive slider 6 and the inner side of the housing 1 to prevent it from sliding. At the same time, when one side of the H-shaped conductive slider 6 generates sufficient thrust, the H-shaped conductive slider 6 can also slide smoothly in the housing 1.

[0023] Example 2: Figure 3 As shown, a stopper 8 is fixedly provided at the position where the inner side of the housing 1 contacts the H-shaped conductive slider 6. The stopper 8 can be provided to block and limit the H-shaped conductive slider 6. When sufficient thrust is generated on one side of the H-shaped conductive slider 6, the H-shaped conductive slider 6 breaks through the stopper 8, thereby sliding smoothly in the housing 1.

[0024] In the present utility model, the fire extinguishing device 7 can adopt the following two device structures:

[0025] Embodiment 1: Figure 3 As shown, the fire extinguishing device 7 includes a shell and an aerosol generator disposed in the shell, one end of the aerosol generator is connected to the starting component, and a spray hole 7.1 is opened on the surface of the shell, and the spray hole 7.1 faces one end of the H-type conductive slider 6. In this embodiment, when the starting component ignites the aerosol generator in the fire extinguishing device 7, an aerosol fire extinguishing substance can be generated, which is sprayed from the spray hole to generate a thrust on one end of the H-type conductive slider 6. After the H-type conductive slider 6 moves, one end of the H-type conductive slider 6 contacts the insulating ring 3, thereby achieving the purpose of disconnection; at the same time, after the H-type conductive slider 6 moves, the nozzle 10 can be released, and the aerosol fire extinguishing substance can continue to be sprayed from the nozzle 10, so as to achieve the purpose of extinguishing the fire around the wire 2.

[0026] Embodiment 2: Figure 4As shown, the fire extinguishing device 7 includes a shell and a liquid fire extinguishing agent 7.2 arranged in the shell, a gas generating chamber 7.3 is arranged in the liquid fire extinguishing agent 7.2, an aerosol generating agent is arranged in the gas generating chamber 7.3, one end of the aerosol generating agent is connected to the starting component, a spray hole 7.1 is opened on the surface of the shell, the spray hole 7.1 faces one end of the H-type conductive slider 6, and the surface of the spray hole 7.1 is covered with a sealing film. In this embodiment, when the aerosol generating agent is ignited by the starting component to generate an aerosol, it can be sprayed out from the outlet of the gas generating chamber 7.3, and then the liquid fire extinguishing agent 7.2 in the shell can be sprayed out from the spray hole 7.1, and then the H-type conductive slider 6 is generated. The thrust is generated. After the H-type conductive slider 6 moves, one end of the H-type conductive slider 6 contacts the insulating ring 3, thereby achieving the purpose of breaking the circuit; at the same time, after the H-type conductive slider 6 moves, the nozzle 10 can be released, and the aerosol fire extinguishing material can continue to be sprayed from the nozzle 10, so as to achieve the purpose of extinguishing the fire around the wire 2. In this embodiment, the liquid fire extinguishing agent 7.2 may be perfluorohexanone or foam, etc. The gas generating chamber 7.3 may be a chamber structure with a corresponding outlet; the gas generating chamber 7.3 may also be a film structure for covering the aerosol generating agent, so that when the aerosol generating agent is ignited, the film structure itself is easily torn to release the gas. In addition, the surface of the spray hole 7.1 is covered with a sealing film to prevent the liquid fire extinguishing agent from leaking out of the spray hole 7.1 when the fire extinguishing device is not activated.

[0027] Preferably, the starting component is a thermistor structure or an electric starter structure. When the starting component is a thermistor structure, when a fire occurs in the outside world, the flame can directly ignite the thermistor, thereby igniting the aerosol generator in the fire extinguishing device 7. When the starting component is an electric starter structure, it includes an electronic ignition head and a starting harness, the electronic ignition head contacts one end of the aerosol generator, one end of the starting harness is connected to the electronic ignition head, and the other end is connected to the external power supply through the threading hole; when the starting component is an electric ignition head structure, it is also provided with a fire detection device, the fire detection device is a temperature sensor and / or a smoke sensor, when a fire, overheating, etc. occurs, the fire detection device detects that the high temperature environment is generated by the fire outside, and sends a signal to the microprocessor, the microprocessor controls the external power supply to work, so that the electronic ignition head ignites, and then the aerosol generator is ignited.

[0028] Preferably, the surface of the housing 1 is also provided with an air pressure balance hole 9. The air pressure balance hole 9 can play two roles: first, to ensure the smooth movement of the H-shaped conductive slider 6, otherwise the movement of the H-shaped conductive slider 6 may be hindered by the air pressure; second, to prevent the fire extinguishing device 7 from generating excessive gas, which may cause excessive pressure inside the housing 1 and prevent the risk of explosion.

[0029] The working principle of this embodiment is as follows:

[0030] like Figure 3 As shown, when no fire occurs, the two ends of the H-type conductive slider 6 are respectively in contact with the inner side of a conductive ring 4, so that the wires 2 at the two ends of the shell 1 are connected in sequence through the conductive end cover 5 on one side, the conductive ring 4 on one side, the H-type conductive slider 6, the conductive ring 4 on the other side and the conductive end cover 5 on the other side, and the entire circuit is connected at this time; when a fire occurs in the outside, taking the first embodiment as an example, when the aerosol generating agent in the fire extinguishing device 7 is ignited by the starting component, an aerosol fire extinguishing substance can be generated, which is sprayed from the spray hole 7.1 to generate a thrust on one end of the H-type conductive slider 6. After the H-type conductive slider 6 moves, one end of the H-type conductive slider 6 contacts the insulating ring 3, so that the wires 2 at the two ends of the shell 1 are not connected to each other, and the entire circuit is disconnected; at the same time, after the H-type conductive slider 6 moves, the nozzle 10 can be released, and the aerosol fire extinguishing substance can continue to be sprayed from the nozzle 10 to achieve the purpose of extinguishing the fire around the wire 2.

[0031] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A fire extinguishing device with a power-off function, comprising a housing (1), characterized in that: The housing (1) comprises an insulating ring (3) located in the middle region, the two sides of the insulating ring (3) are connected to the conductive end caps (5) via conductive rings (4), the conductive end caps (5) are connected to the wires (2), an H-shaped conductive slider (6) matched with the housing (1) is provided inside the housing (1), both ends of the H-shaped conductive slider (6) are in contact with the inner side of the conductive ring (4), a fire extinguishing device (7) is provided in the cavity between one end of the H-shaped conductive slider (6) and the conductive end cap (5), and a nozzle (10) is provided on the surface of the conductive ring (4) where the fire extinguishing device (7) is located.

2. A fire extinguishing device with power-off function according to claim 1, characterized in that: The H-shaped conductive slider (6) is interference fit with the inner side of the housing (1).

3. A fire extinguishing device with power-off function according to claim 1, characterized in that: A stopper (8) is fixedly provided at a position on the inner side of the housing (1) that contacts the H-shaped conductive sliding block (6).

4. A fire extinguishing device with power-off function according to claim 1, characterized in that: The fire extinguishing device (7) comprises a shell and an aerosol generator arranged in the shell, one end of the aerosol generator is connected to the starting component, and a spray hole (7.1) is opened on the surface of the shell, and the spray hole (7.1) faces one end of the H-shaped conductive slider (6).

5. A fire extinguishing device with power-off function according to claim 1, characterized in that: The fire extinguishing device (7) comprises a shell and a liquid fire extinguishing agent (7.2) arranged in the shell, a gas generating chamber (7.3) being arranged in the liquid fire extinguishing agent (7.2), an aerosol generating agent being arranged in the gas generating chamber (7.3), one end of the aerosol generating agent being connected to a starting component, a spray hole (7.1) being opened on the surface of the shell, the spray hole (7.1) being directed toward one end of the H-shaped conductive slider (6), and a sealing film covering the surface of the spray hole (7.1).

6. A fire extinguishing device with power-off function according to claim 4 or 5, characterized in that: The starting component is a thermal wire structure or an electric starter structure.

7. A fire extinguishing device with power-off function according to claim 1, characterized in that: An air pressure balance hole (9) is also provided on the surface of the housing (1).

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