CN212378045U - Range hood with fire extinguishing function - Google Patents

Abstract

The utility model relates to a range hood with function of putting out a fire, including range hood casing, fan, wind channel, deep bead and check valve, its characterized in that still includes the fire extinguishing mechanism that can release the material of putting out a fire to flame burning position, and the structure of putting out a fire is including establishing in range hood casing and having the storage device that holds the chamber, holds the intracavity and has placed the material of putting out a fire such as dry powder fire extinguishing agent, and storage device below sets up the wind channel wall that melts, and this wind channel wall and hold and establish the heat preservation between the chamber, and the heat preservation forms the bottom that holds the chamber. Once the air duct wall and the heat insulation layer are burnt and damaged by continuous flame, the fire extinguishing substances in the cavity are scattered on the flame under the action of gravity, so that the fire is pertinently extinguished at the initial stage of continuous combustion of the flame in the cavity; through setting up the control panel and detecting the pressure sensor who holds the pressure data of the interior material of putting out a fire and taking place to move down, ensure that the control panel closes according to the pressure data control fan that receives, deep bead and check valve, reach the automatic fire extinguishing effect.

Description

Range hood with fire extinguishing function

Technical Field

The utility model relates to a range hood field especially relates to a range hood with function of putting out a fire.

Background

Currently, range hoods have been installed in more and more common household kitchens. In order to improve the oil fume suction effect, the installation position of the existing range hood is lower and lower, so that the oil fume suction is ensured to have strong enough suction, and the oil fume generated by a user in the cooking process is sucked into the air duct and then discharged into the common flue.

In the use process of the actual range hood, a little oil smoke with flame is difficult to be sucked into the cavity of the range hood through the air inlet of the range hood. Once the flame entering the cavity of the range hood continuously burns, a fire disaster is easily caused. However, the existing range hood cannot perform targeted fire extinguishing action at the initial stage of continuous combustion of flame in the cavity of the range hood.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a range hood with function of putting out a fire is provided to above-mentioned prior art.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a range hood with a fire extinguishing function comprises:

a range hood housing;

the fan is positioned in the range hood shell;

the air duct is formed in the range hood shell;

the wind shield is arranged on the shell of the range hood and positioned at an air inlet of the range hood;

the check valve is arranged on the shell of the range hood and is positioned at the air outlet of the range hood;

it is characterized by also comprising a fire extinguishing mechanism which can release fire extinguishing substances to the flame burning position.

The utility model discloses a range hood sets up a structure of can putting out a fire through increasing, can release the material of putting out a fire to the flame burning position of cooking utensils to ensure can not take place the conflagration. Wherein, the fire extinguishing substance can adopt dry powder extinguishing agent.

As the specific arrangement of the fire extinguishing structure, the fire extinguishing structure can be arranged in the shell of the range hood or outside the shell of the range hood as required. Wherein, the fire extinguishing mechanism in the utility model is arranged in the shell of the range hood. Specifically, in the utility model, the fire extinguishing mechanism comprises a containing device, and the containing device is provided with a containing cavity for containing fire extinguishing substances; the air duct is provided with a meltable air duct wall positioned below the object containing device, and the meltable air duct wall supports the fire extinguishing substances in the containing cavity.

When continuous flame appears in the range hood shell and burns and destroys the air duct wall, the fire extinguishing substance in the containing device can be released from the cavity, and then the fire extinguishing substance can be sprinkled on the flame, so that the fire extinguishing effect is realized.

Of course, a heat insulation layer can be arranged between the object containing device and the fusible air duct wall, and the heat insulation layer forms the bottom of the containing cavity. Therefore, under normal conditions, the heat-insulating layer can play a role in heat insulation and protection. Once the air duct wall is burnt and destroyed and the heat insulating layer is also burnt and destroyed, the fire extinguishing substances in the accommodating cavity can be scattered on flame under the action of gravity, and fire extinguishing is realized. The heat-insulating layer is made of heat-insulating cotton.

The accommodating cavity in the accommodating device can be in various forms, for example, in the utility model, the accommodating cavity of the accommodating device is a cavity with a large upper end and a small lower end.

In order to make this range hood reach automatic fire extinguishing's effect, in this utility model's range hood, the mechanism of putting out a fire still includes:

the pressure sensor is used for detecting the pressure value of the fire extinguishing substance in the containing cavity;

and the control panel is respectively connected with the pressure sensor, the fan, the wind shield and the check valve.

Once the meltable air duct wall and the heat preservation layer are burnt and destroyed by flame, when fire extinguishing substances in the cavity of the storage device move downwards under the action of gravity, the pressure sensor sends the detected pressure numerical value to the control panel, then the control panel controls the fan to be closed, the wind shield is closed and the check valve is closed, so that the closed check valve can prevent the flame from channeling into other users along the flue to bring risks, the closed wind shield reduces the air inlet amount in the cavity of the range hood, and meanwhile, the fire extinguishing substances which are poured down are prevented from scattering on the kitchen range operation table top of the users.

In the practical implementation process, the pressure sensor is arranged on the surface of the side wall forming the cavity; or the pressure sensor is embedded in the side wall forming the cavity.

Of course, a support frame is also arranged in the shell of the range hood, and the object containing device is positioned on the support frame.

Compared with the prior art, the utility model has the advantages of:

firstly, a containing device with a containing cavity is arranged in a shell of the range hood, fire extinguishing substances are placed in the containing cavity, a fusible air duct wall is arranged below the containing device, a heat insulation layer is arranged between the fusible air duct wall and the containing cavity, and the heat insulation layer forms the bottom of the containing cavity. Once the air duct wall is burnt and damaged by continuous flame and the heat insulation layer is burnt and damaged, the fire extinguishing substances in the cavity can be scattered on the flame under the action of gravity, so that the fire can be specifically extinguished at the initial stage of continuous combustion of the flame in the cavity;

secondly, still through set up pressure sensor and connection fan, deep bead and check valve control panel on forming the lateral wall in appearance chamber or the lateral wall, realize that fusible wind channel wall and heat preservation are burnt by flame and destroy, when the material of putting out a fire takes place to move down under the action of gravity in the cavity, pressure sensor will send the pressure numerical value that detects to the control panel, then close by control panel control fan, deep bead is closed and the check valve is closed, the check valve of closing can avoid flame to scurry into other users along the flue and bring the risk, the deep bead that closes reduces the air admission volume in the range hood intracavity, avoid the material of putting out a fire that pours down to scatter on user's cooking utensils operation table surface simultaneously, reached this range hood's automatic fire extinguishing effect.

Drawings

Fig. 1 is a schematic cross-sectional view of a range hood with a fire extinguishing function in this embodiment.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1, this embodiment provides a range hood with a fire extinguishing function, including:

a range hood housing 1;

the fan 2 is positioned in the range hood shell 1;

the air duct 3 is formed in the range hood shell 1;

the wind shield 4 is arranged on the range hood shell 1 and is positioned at the air inlet 11 of the range hood;

the check valve 5 is arranged on the range hood shell 1 and is positioned at the air outlet 12 of the range hood;

and a fire extinguishing mechanism capable of releasing a fire extinguishing substance 7 to a flame burning position, the fire extinguishing substance 7 being a dry powder fire extinguishing agent. Wherein, this mechanism of putting out a fire sets up in range hood casing 1. Specifically, this fire extinguishing mechanism includes:

the containing device 61, the containing device 61 is provided with a containing cavity 610 for containing the fire extinguishing substances 7, and the containing cavity 610 is a cavity with a large upper end and a small lower end; the object holding device 61 is positioned on a supporting frame 8, and the supporting frame 8 is arranged in the range hood shell 1;

a pressure sensor 63 for detecting the pressure value of the fire extinguishing substance in the chamber 610, the pressure sensor 63 being embedded in the side wall forming the chamber 610; of course, the pressure sensor 63 may be provided on the sidewall surface forming the cavity 610;

and the control board 64 is respectively connected with the pressure sensor 63, the fan 2, the wind shield 4 and the check valve 5. The air duct 3 is provided with a fusible air duct wall 31 located below the object containing device 61, a heat insulation layer 62 is arranged between the object containing device 61 and the fusible air duct wall 31, the heat insulation layer 62 forms the bottom of the cavity 610, the heat insulation layer 62 is made of heat insulation cotton, and the fusible air duct wall 31 supports the fire extinguishing substances in the cavity 610 through the supporting heat insulation layer 62.

When continuous flame appears in the interior of the range hood housing 1 and burns and destroys the air duct wall 31, the dry powder extinguishing agent in the containing cavity 610 of the holding device 61 moves downwards from the containing cavity 610 under the action of gravity and is scattered on the flame, so that the targeted fire extinguishing is ensured at the initial stage of the continuous combustion of the flame in the range hood cavity; and the detected pressure value is sent to the control panel 64 through the pressure sensor 63, the control panel 64 controls the fan 2 to be closed, the wind shield 4 to be closed and the check valve 5 to be closed, so that the closed wind shield 4 can reduce the air entering amount in the cavity of the range hood, the closed check valve 5 can prevent flame from channeling into other users along a flue to bring risks, meanwhile, fire extinguishing substances which are poured down are prevented from scattering on the operating table top of the kitchen range of the users, and the further precaution effect on possible fire disasters is realized.

Claims (10)

1. A range hood with a fire extinguishing function comprises:

a range hood housing (1);

the fan (2) is positioned in the shell (1) of the range hood;

an air duct (3) formed in the range hood housing (1);

the wind shield (4) is arranged on the shell (1) of the range hood and is positioned at an air inlet (11) of the range hood;

the check valve (5) is arranged on the shell (1) of the range hood and is positioned at the air outlet (12) of the range hood;

characterized in that the device also comprises a fire extinguishing mechanism which can release fire extinguishing substances (7) to the flame burning position.

2. The range hood with the fire extinguishing function according to claim 1, wherein the fire extinguishing mechanism is arranged in the range hood housing (1).

3. The range hood with the fire extinguishing function according to claim 2, wherein the fire extinguishing mechanism comprises a containing device (61), and the containing device (61) is provided with a cavity (610) for containing fire extinguishing substances; the air duct (3) is provided with a fusible air duct wall (31) positioned below the object containing device (61), and the fusible air duct wall (31) supports the fire extinguishing substances in the cavity (610).

4. The range hood with the fire extinguishing function according to claim 3, wherein an insulating layer (62) is arranged between the object containing device (61) and the fusible air duct wall (31), and the insulating layer (62) forms the bottom of the cavity (610).

5. The range hood with the fire extinguishing function according to claim 4, wherein the heat insulation layer (62) is heat insulation cotton.

6. The range hood with the fire extinguishing function according to claim 3, wherein the accommodating cavity of the object holding device (61) is a cavity with a large upper end and a small lower end.

7. The range hood with fire extinguishing function according to claim 6, wherein the fire extinguishing mechanism further comprises:

a pressure sensor (63) for detecting the pressure value of the fire extinguishing substance in the cavity;

and the control panel (64) is respectively connected with the pressure sensor (63), the fan (2), the wind shield (4) and the check valve (5).

8. The range hood with the fire extinguishing function according to claim 7, wherein the pressure sensor (63) is arranged on a side wall surface forming the cavity (610); or the pressure sensor (63) is embedded in the side wall forming the cavity (610).

9. The range hood with the fire extinguishing function according to any one of claims 3 to 8, wherein a support frame (8) is arranged in the range hood housing (1), and the object holding device (61) is positioned on the support frame (8).

10. The range hood with the fire extinguishing function according to any one of claims 1 to 8, wherein the fire extinguishing substance (7) is a dry powder fire extinguishing agent.

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