Fire extinguishing device with power-off function

Abstract

The utility model discloses a fire extinguishing device with a power-off function, which comprises a shell arranged on the surface of an electric wire, a blade device is arranged in the shell, the blade device comprises a cutter, the cutter is in sliding fit with a cavity formed in the shell, a fire extinguishing device is arranged at the top of the cutter, and the bottom of the cutter directly faces the electric wire. A nozzle communicated with the cavity is formed in the side part of the shell; 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; and meanwhile, aerosol fire extinguishing substances can be released, so that the aim of extinguishing the surrounding area of the electric wire is fulfilled.

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] After an electrical fire occurs, due to tension and panic, people often have accidents in operation. For fires with smaller fires and smaller fire areas, 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 relatively cumbersome and have certain risks. 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 shortened 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, comprising a shell arranged on the surface of the electric wire, a blade device is arranged in the shell, the blade device includes a cutter, the cutter is slidably matched with a cavity opened inside the shell, a fire extinguishing device is arranged on the top of the cutter, the bottom of the cutter is facing the electric wire, and a nozzle connected to the cavity is opened on the side of the shell.

[0007] Preferably, a positioning groove cooperating with the electric wire is provided in the shell.

[0008] Preferably, the cutter is hollow inside and is provided with a compression spring, the top of the compression spring is connected to the top of the inside of the cutter, and the bottom of the compression spring is connected to a fixed block, and the fixed block is fixed in the shell.

[0009] Preferably, the lower end of the cutter is a pointed structure.

[0010] Preferably, a clamping block is further provided on the inner side of the cavity, a sliding plate is provided on the top of the cutter, and a baffle plate is provided on the side, the sliding plate is slidably matched with the inner wall of the cavity, and the baffle plate is matched with the nozzle.

[0011] 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 at the bottom of the shell, and the spray hole is aligned with the sliding disk.

[0012] 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 at the bottom of the shell, the spray hole is aligned with the sliding disk, and the surface of the spray hole is covered with a sealing film.

[0013] Preferably, a cover body is detachably connected to the top of the shell, and a threading hole is opened on the surface of the cover body, and the threading hole is used to pass a starting wire harness of a starting component.

[0014] Preferably, the starting component is a thermistor structure or an electric starter structure.

[0015] Preferably, the cutter is made of insulating material.

[0016] Beneficial effects of the utility model:

[0017] The utility model device can quickly cut off the circuit of the electric wire when a fire occurs, and there is no danger during the cutting process, thus ensuring life safety and being able to cut off the power in time and effectively; at the same time, aerosol fire extinguishing substances can be released to achieve the purpose of extinguishing the fire in the area around the electric wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view structural schematic diagram of a fire extinguishing device with a power-off function;

[0019] Figure 2 for Figure 1 AA cross-sectional structural diagram;

[0020] Figure 3 This is an enlarged structural diagram of the area where the fire extinguishing device corresponding to Example 2 is located. DETAILED DESCRIPTION

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] like Figure 1-2As shown, a fire extinguishing device with a power-off function comprises a shell 2 arranged on the surface of an electric wire 4, a blade device 3 is arranged in the shell 2, and the blade device 3 comprises a cutter 3.1, and the cutter 3.1 is slidably matched with a cavity 2.2 opened in the shell 2, a fire extinguishing device 1 is arranged on the top of the cutter 3.1, and the bottom of the cutter 3.1 faces the electric wire 4, and a nozzle 7 connected to the cavity 2.2 is opened on the side of the shell 2.

[0023] Preferably, a positioning groove 6 is provided in the housing 2 to match the electric wire 4. The positioning groove 6 facilitates the installation and connection process between the entire fire extinguishing device and the electric wire 4.

[0024] Preferably, the cutter 3.1 is hollow inside and is provided with a compression spring 3.2, the top of the compression spring 3.2 is connected to the top of the cutter 3.1, the bottom of the compression spring 3.2 is connected to a fixing block 3.3, and the fixing block 3.3 is fixed in the housing 2. When there is no fire, the compression spring 3.2 can support the cutter 3.1 to prevent it from moving downward.

[0025] Preferably, the lower end of the cutter 3.1 is a pointed structure.

[0026] Preferably, a block 5 is further provided inside the cavity 2.2, a sliding plate 3.1.1 is provided on the top of the cutter 3.1, and a baffle 3.1.2 is provided on the side, the sliding plate 3.1.1 is slidably matched with the inner wall of the cavity 2.2, and the baffle 3.1.2 is matched with the nozzle 7. The block 5 can limit the position of the cutter 3.1 moving toward the positioning groove 6 to prevent the cutter 3.1 from moving out of the positioning groove 6. When there is no fire, the baffle 3.1.2 just blocks the nozzle 7, and after the fire occurs, the sliding plate 3.1.1 and the baffle 3.1.2 move down, so that the nozzle 7 can be released.

[0027] The fire extinguishing device 1 of the present utility model has the following two implementation modes:

[0028] Embodiment 1: The fire extinguishing device 1 comprises 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 1.1 is provided at the bottom of the shell, and the spray hole 1.1 is aligned with the sliding plate 3.1.1. In this embodiment, when the aerosol generator is ignited by the starting component to generate aerosol, it can be sprayed from the spray hole 1.1 to generate thrust on the sliding plate 3.1.1, thereby pushing the entire cutter 3.1 to move downward and cut off the wire 4 in the positioning groove 6, achieving the purpose of breaking the circuit; at the same time, after the sliding plate 3.1.1 and the baffle plate 3.1.2 move downward, the nozzle 7 can be released, and the aerosol can continue to be sprayed from the nozzle 7, achieving the purpose of extinguishing the fire around the wire 4.

[0029] Example 2: Figure 3As shown, the fire extinguishing device 1 includes a shell and a liquid fire extinguishing agent 1.2 arranged in the shell, a gas generating chamber 1.3 is arranged in the liquid fire extinguishing agent 1.2, an aerosol generating agent is arranged in the gas generating chamber 1.3, one end of the aerosol generating agent is connected to the starting component, a spray hole 1.1 is opened at the bottom of the shell, the spray hole 1.1 is aligned with the sliding plate 3.1.1, and the surface of the spray hole 1.1 is covered with a sealing film. In this embodiment, when the aerosol generator is ignited by the starting component to generate an aerosol, it can be sprayed out from the outlet of the gas generating chamber 1.3, and then the liquid fire extinguishing agent 1.2 in the shell can be pushed out from the spray hole 1.1 at the bottom, and then the sliding plate 3.1.1 is thrusted, thereby pushing the entire cutter 3.1 to move downward and cut off the wire 4 in the positioning groove 6, so as to achieve the purpose of breaking the circuit; at the same time, after the sliding plate 3.1.1 and the baffle plate 3.1.2 move downward, the nozzle 7 can be released, and the liquid fire extinguishing agent 1.2 can continue to be sprayed from the nozzle 7, so as to achieve the purpose of extinguishing the fire around the wire 4. In this embodiment, the liquid fire extinguishing agent 1.2 can be perfluorohexanone or foam, etc. The gas generating chamber 1.3 can be a chamber structure with a corresponding outlet; the gas generating chamber 1.3 can also be a thin film structure for coating the aerosol generator, so that when the aerosol generator is ignited, the thin film structure itself is easy to be torn, thereby releasing the gas. In addition, the surface of the spray hole 1.1 is covered with a sealing film, which can prevent the liquid fire extinguishing agent from leaking out of the spray hole 1.1 when the fire extinguishing device is not activated.

[0030] Preferably, a cover body 2.1 is detachably connected to the top of the shell 2, and a threading hole 2.1.1 is opened on the surface of the cover body 2.1, and the threading hole 2.1.1 is used to pass the starting wire harness of the starting component.

[0031] 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 1. 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 passes through the threading hole 2.1.1 to connect to the external power supply; when the starting component is an electric ignition head structure, it is also provided with a fire detection device, which 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.

[0032] Preferably, the cutter 3.1 is made of insulating material. With such a design, when the cutter 3.1 cuts the electric wire 4, the power-off process will not fail due to the conduction of the cutter 3.1.

[0033] The working principle of this embodiment is as follows:

[0034] Taking Example 1 as an example, when a fire occurs outside, the starting component ignites the aerosol generating agent in the fire extinguishing device 1, thereby generating aerosol fire extinguishing substances; the aerosol fire extinguishing substances are ejected from the ejection hole 1.1 and generate thrust on the sliding plate 3.1.1, thereby pushing the entire cutter 3.1 to move downward and cut off the wire 4 in the positioning groove 6, thereby achieving the purpose of circuit breaking; at the same time, after the sliding plate 3.1.1 and the baffle plate 3.1.2 move downward, the nozzle 7 can be released, and the aerosol can continue to be ejected from the nozzle 7, thereby achieving the purpose of extinguishing the fire around the wire 4.

[0035] 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 (2) disposed on the surface of an electric wire (4), wherein a blade device (3) is disposed in the housing (2), characterized in that: The blade device (3) comprises a cutter (3.1), the cutter (3.1) being slidably matched with a cavity (2.2) provided inside the housing (2), a fire extinguishing device (1) being provided on the top of the cutter (3.1), the bottom of the cutter (3.1) facing the electric wire (4), and a nozzle (7) communicating with the cavity (2.2) being provided on the side of the housing (2).

2. A fire extinguishing device with power-off function according to claim 1, characterized in that: A positioning groove (6) cooperating with the electric wire (4) is provided in the housing (2).

3. A fire extinguishing device with power-off function according to claim 1, characterized in that: The cutter (3.1) is hollow inside and is provided with a compression spring (3.2); the top of the compression spring (3.2) is connected to the top of the inside of the cutter (3.1); the bottom of the compression spring (3.2) is connected to a fixed block (3.3); and the fixed block (3.3) is fixedly arranged in the housing (2).

4. A fire extinguishing device with power-off function according to claim 3, characterized in that: The lower end of the cutter (3.1) is a pointed structure.

5. A fire extinguishing device with power-off function according to claim 3, characterized in that: A clamping block (5) is also provided on the inner side of the cavity (2.2); a sliding plate (3.1.1) is provided on the top of the cutter (3.1); and a baffle (3.1.2) is provided on the side; the sliding plate (3.1.1) is slidably matched with the inner wall of the cavity (2.2); and the baffle (3.1.2) is matched with the nozzle (7).

6. A fire extinguishing device with power-off function according to claim 5, characterized in that: The fire extinguishing device (1) 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 (1.1) is opened at the bottom of the shell, and the spray hole (1.1) is aligned with the sliding plate (3.1.1).

7. A fire extinguishing device with power-off function according to claim 5, characterized in that: The fire extinguishing device (1) comprises a shell and a liquid fire extinguishing agent (1.2) arranged in the shell, a gas generating chamber (1.3) being arranged in the liquid fire extinguishing agent (1.2), an aerosol generating agent being arranged in the gas generating chamber (1.3), one end of the aerosol generating agent being connected to a starting component, a spray hole (1.1) being arranged at the bottom of the shell, the spray hole (1.1) being aligned with the sliding plate (3.1.1), and a sealing film covering the surface of the spray hole (1.1).

8. A fire extinguishing device with power-off function according to claim 6 or 7, characterized in that: The top of the housing (2) is detachably connected to a cover body (2.1), and a threading hole ( 2.1.1), the threading hole (2.1.1) is used to thread the starting wire harness of the starting component.

9. A fire extinguishing device with power-off function according to claim 6 or 7, characterized in that: The starting component is a thermal wire structure or an electric starter structure.

10. A fire extinguishing device with power-off function according to claim 1, characterized in that: The cutter (3.1) is made of insulating material.

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