Range hood with fire extinguishing function

Abstract

The utility model belongs to the technical field of range hoods, and particularly relates to a range hood with a fire extinguishing function. According to the range hood with the fire extinguishing function, the fire extinguishing device is arranged on the range hood body and comprises the fire extinguishing bomb arranged in the storage chamber, so that when a stove on the lower side of the range hood body is on fire, the electromagnetic lock unlocks the covering part covering the throwing opening, and the fire extinguishing bomb can be thrown from the throwing opening to the lower side; and the pull ring of the fire extinguishing bomb is pulled out through the pull ring puller to detonate the fire extinguishing bomb in a delayed manner, so that fire extinguishing under the fire condition is realized, fire accidents are effectively prevented, and the safety and reliability are good.

Description

Technical Field

[0001] The utility model belongs to the technical field of range hoods, and in particular relates to a range hood with a fire extinguishing function. Background Art

[0002] Range hoods are very common kitchen appliances in daily life. By starting the range hood, the fumes generated during cooking can be first sucked into the range hood and then further transferred to the outside atmosphere. However, the range hoods currently on the market do not have a fire extinguishing function. When the stove under the range hood is working, such as cooking soup, the user generally does not always watch the work. When a fire occurs, the user cannot accurately judge the situation on the scene, which may cause a fire accident. Utility Model Content

[0003] The utility model aims to overcome the problem that the existing range hoods do not have a fire extinguishing function and to provide a range hood with a fire extinguishing function.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A range hood with a fire extinguishing function comprises a range hood body, a fan device and a fire extinguishing device; the range hood body is provided with an air suction port located at the bottom; the fan device is arranged in the range hood body and connected to the air suction port; the fire extinguishing device is arranged on the side of the range hood body, and comprises a storage chamber, a fire extinguishing bomb, an electromagnetic lock, a pull ring extractor and a cover portion, a delivery port is provided at the bottom of the storage chamber, the cover portion comprises a cover plate and a locking portion, the cover plate covers the bottom of the delivery port, the locking portion is locked by a lock tongue of the electromagnetic lock, the fire extinguishing bomb is arranged in the storage chamber and placed on the top of the cover portion, the pull ring extractor is connected with the pull ring of the fire extinguishing bomb, and is used for pulling out the pull ring of the fire extinguishing bomb when the fire extinguishing bomb falls downward through the delivery port to delay the detonation of the fire extinguishing bomb, and the electromagnetic lock unlocks the locking portion to open the delivery port by the cover portion, thereby causing the fire extinguishing bomb to fall downward through the delivery port.

[0006] Compared with the prior art, the range hood with a fire extinguishing function of the utility model is provided with a fire extinguishing device in the range hood body, and the fire extinguishing device includes a fire extinguishing bomb arranged in the storage chamber, so that when a fire occurs in the stove on the lower side of the range hood body, the electromagnetic lock can release the fire extinguishing bomb from the release port to the lower side by unlocking the cover of the release port, and the pull ring of the fire extinguishing bomb is pulled out by the pull ring puller to delay the detonation of the fire extinguishing bomb, thereby realizing the extinguishing of the fire, effectively preventing the accidental occurrence of fire, and having good safety and reliability.

[0007] Furthermore, it also includes an elastic mechanism, which is arranged on the top of the storage chamber, and the lower end of the elastic mechanism abuts against the top of the fire extinguishing bomb, so that the fire extinguishing bomb abuts against the covering part. Through this arrangement, the fire extinguishing bomb can be better ejected from the storage chamber through the delivery port, and the fire extinguishing response speed is good.

[0008] Furthermore, the locking portion is located at the top of the cover plate, and the electromagnetic lock is arranged in the storage chamber; through such an arrangement, when the covering portion is unlocked, the cover plate is more easily separated from the delivery port, so that the fire extinguishing bomb can be ejected through the delivery port.

[0009] Furthermore, the fire extinguishing device also includes a storage box arranged on the outside of the bottom of the range hood body, and the storage chamber is formed in the internal space of the storage box; through such an arrangement, the fire extinguishing device can be assembled as a whole at the bottom of the range hood body, which is convenient for the production and assembly of range hood products.

[0010] Furthermore, the outer diameter of the cover plate is larger than the inner diameter of the delivery port, and when the covering part covers the delivery port, the outer edge of the cover plate is located outside the delivery port; through such an arrangement, the cover plate can smoothly and completely cover the delivery port.

[0011] Furthermore, the fire extinguishing devices are respectively provided on both sides of the range hood body, and two fire extinguishing devices are respectively provided on both sides of the range hood body along the width direction; through such an arrangement, fire extinguishing bombs can be dropped downward at the four corners of the range hood body, and the fire extinguishing effect is good.

[0012] Furthermore, it also includes a control module and a sensing device, wherein the sensing device is an infrared thermal imager sensor, and when the sensing device detects a fire image under the range hood, it feeds back a signal to the control module to control the electromagnetic lock to unlock the cover. Through such an arrangement, the range hood body can intelligently identify the fire situation and automatically release fire extinguishing bombs, and the intelligent fire extinguishing effect is good.

[0013] Furthermore, it also includes an air cover assembly and a control module, the air intake port includes a first air intake port and a second air intake port located on both sides, a slide rail device and a driving mechanism are provided on the inner side of the range hood body, and the fan device can be slidably connected to the slide rail device; the driving mechanism is used to drive the fan device to move along the slide rail device between the upper side of the first air intake port and the upper side of the second air intake port; the air cover assembly includes a first air cover and a second air cover, the first air cover is connected to the range hood body and is driven by a first driver to relatively open or close the first air intake port, and the second air cover is connected to the range hood body and is driven by a second driver to relatively open or close the second air intake port; the control module is electrically connected to the first driver, the second driver, the fan device and the driving mechanism, respectively; when the fan device is working, the range hood has a first working state in which the fan device moves to the upper side of the first air intake port and only opens the first air intake port, and a first working state in which the fan device moves to the upper side of the second air intake port and only opens the second The fan unit is a third working state where the fan moves to an upper position between the first and second air intake ports and opens the first and second air intake ports at the same time; through such an arrangement, the fan unit is slidably connected in the range hood body and can move between the first and second air intake ports, so that the fan unit can be moved to an upper side of the first or second air intake port according to the position where oil smoke is generated by the stove and cooperates with the wind cover assembly to open only the air intake port on the corresponding side, so that the fan unit can perform oil smoke suction work at a lower power, or, when oil smoke is generated at both sides of the stove at the same time, the fan unit slides between the first and second air intake ports, cooperates with the wind cover assembly to simultaneously open the first and second air intake ports, so that oil smoke suction work can be performed on both sides of the stove at the same time, effectively solving the problem of oil smoke escape, ensuring the maximum use of the performance of the fan unit, and having a good oil fume suction effect.

[0014] Furthermore, it also includes a sensing device electrically connected to the control module, the sensing device is used to detect whether the temperature or oil fume concentration at the two sides below the range hood reaches a preset value, and the control module controls the range hood body to enter the first working state, the second working state or the third working state according to the feedback signal of the sensing device; through such a setting, the working state of the range hood can be intelligently controlled by setting the sensing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the first state of the range hood.

[0016] Figure 2 Schematic diagram of the range hood in the second state.

[0017] Figure 3 It is a schematic diagram of the third state of the range hood.

[0018] Figure 4 Schematic diagram of the internal structure of the range hood Figure 1 .

[0019] Figure 5 Schematic diagram of the internal structure of the range hood Figure 2 .

[0020] Figure 6 This is a schematic diagram of the range hood located in the fire extinguishing device. DETAILED DESCRIPTION

[0021] The specific implementation of the present invention is described below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] See also Figures 1 to 6 The range hood with fire extinguishing function of the utility model comprises a range hood body 1, a fan device 6, and a fire extinguishing device 8; the range hood body 1 is provided with an air suction port located at the lower part; the fan device 6 is arranged in the range hood body 1 and connected to the air suction port; the fire extinguishing device 8 is arranged at the side of the range hood body 1, and comprises a storage chamber 81, a fire extinguishing bomb 82, an electromagnetic lock 83, a pull ring extractor (not shown) and a cover part 85, a loading port 88 is provided at the bottom of the storage chamber 81, and the cover part 85 comprises a cover plate 851 and a locking part 852, and the cover plate 851 covers the bottom of the loading port 88 The locking portion 852 is provided with a lock hole that cooperates with the lock tongue of the electromagnetic lock 83, and the locking portion 852 is locked by the lock tongue of the electromagnetic lock 83. The fire extinguishing bomb 82 is arranged in the storage chamber 81 and placed on the top of the covering portion 85. The pull ring puller is connected to the pull ring of the fire extinguishing bomb 82, and is used to pull out the pull ring of the fire extinguishing bomb 82 (not shown) when the fire extinguishing bomb 82 falls downward through the delivery port 88 to delay the detonation of the fire extinguishing bomb 82. The electromagnetic lock 83 unlocks the locking portion 852, so that the covering portion 85 opens the delivery port 88, thereby causing the fire extinguishing bomb 82 to fall downward through the delivery port 88.

[0023] Compared with the prior art, the range hood with fire extinguishing function of the utility model is provided with a fire extinguishing device 8 on the range hood body 1. The fire extinguishing device 8 includes a fire extinguishing bomb 82 arranged in a storage chamber 81. When a fire occurs in the stove on the lower side of the range hood body 1, the electromagnetic lock 83 can unlock the cover 85 of the cover delivery port 88, so that the fire extinguishing bomb 82 can be delivered to the lower side from the delivery port 88, and the pull ring of the fire extinguishing bomb 82 is pulled out by the pull ring puller to delay the detonation of the fire extinguishing bomb 82, thereby realizing the fire extinguishing of the fire, effectively preventing the accidental occurrence of fire, and having good safety and reliability.

[0024] The fire extinguishing bomb 82 can adopt the existing pull-type throwing dry powder fire extinguishing bomb 82, and the structural type of the fire extinguishing bomb 82 is not the technical key point of the present utility model.

[0025] See also Figure 6 In one embodiment, it also includes an elastic mechanism 86, which is preferably a spring. The elastic mechanism 86 is arranged on the top of the storage chamber 81, and the lower end of the elastic mechanism 86 abuts against the top of the fire extinguishing bomb 82, so that the fire extinguishing bomb 82 abuts on the covering portion 85 and the fire extinguishing bomb 82 can be quickly dropped downward through the dropping port 88 when the dropping port 88 is opened. Through such an arrangement, the fire extinguishing bomb 82 can be better ejected from the storage chamber 81 through the dropping port 88, and the fire extinguishing response speed is good.

[0026] See also Figure 6 In one embodiment, the locking portion 852 is located at the top of the cover plate 851, and the electromagnetic lock 83 is arranged in the storage chamber 81; through such an arrangement, when the covering portion 85 is unlocked, the cover plate 851 is more easily separated from the delivery port 88, so that the fire extinguishing bomb 82 can be ejected through the delivery port 88.

[0027] See also Figure 6 In one embodiment, the fire extinguishing device 8 also includes a storage box 87 arranged on the outside of the bottom of the range hood body 1, and the storage chamber 81 is formed in the internal space of the storage box 87; through such a configuration, the fire extinguishing device 8 can be assembled as a whole at the bottom of the range hood body 1, which is convenient for the production and assembly of range hood products.

[0028] See also Figure 6 In one embodiment, the outer diameter of the cover plate 851 is larger than the inner diameter of the delivery port 88. When the covering portion 85 covers the delivery port 88, the outer edge of the cover plate 851 is located on the outer side of the bottom of the delivery port 88. By such a configuration, the cover plate 851 can smoothly and completely cover the delivery port 88.

[0029] See also Figure 6 In one embodiment, the fire extinguishing devices 8 are respectively provided on both sides of the range hood body 1, and two fire extinguishing devices 8 are respectively provided on both sides of the range hood body 1 along the width direction; through such an arrangement, the fire extinguishing bombs 82 can be dropped downward at the four corners of the range hood body 1, and the fire extinguishing effect is good.

[0030] See also Figure 6 In one embodiment, it also includes a control module and a sensing device 11, wherein the sensing device is an infrared thermal imager sensor 11, and the sensing device 11 is used to detect a fire image under the range hood, and feedback a signal to the control module to control the electromagnetic lock 83 to unlock the cover 85; through such a setting, the range hood body 1 can intelligently identify the fire situation and automatically release the fire extinguishing bomb 82, and the intelligent fire extinguishing effect is good.

[0031] See also Figure 6In one embodiment, it also includes an air cover assembly and a control module, the air intake port includes a first air intake port 3 and a second air intake port 4 located on both sides of the bottom, a slide rail device 5 and a driving mechanism 2 are provided on the inner side of the range hood body 1, and the fan device 6 can be slidably connected to the slide rail device 5; the driving mechanism 2 is used to drive the fan device 6 to move along the slide rail device 5 between the upper side of the first air intake port 3 and the upper side of the second air intake port 4; the air cover assembly includes a first air cover 31 and a second air cover 41, the first air cover 31 is connected to the range hood body 1 and is driven by a first driver 32 to relatively open or close the first air intake port 3, the second air cover 41 is connected to the range hood body 1 and is driven by a second driver 42 to relatively open or close the second air intake port 4; the control module is electrically connected to the first driver 32, the second driver 42, the fan device 6 and the driving mechanism 2 respectively; when the fan device 6 is working, the range hood has a first working state in which the fan device 6 moves to the upper side of the first air intake port 3 and only opens the first air intake port 3, and a first working state in which the fan device 6 moves to The fan unit 6 is in a third working state in which the first air inlet 3 and the second air inlet 4 are opened at the upper side of the second air inlet 4 and the third working state in which the fan unit 6 moves to the upper side between the first air inlet 3 and the second air inlet 4 and the first air inlet 3 and the second air inlet 4 are opened at the same time. By such an arrangement, the fan unit 6 is slidably connected in the range hood body 1 and can move between the first air inlet 3 and the second air inlet 4, so that the fan unit 6 can be moved to the upper side of the first air inlet 3 or the second air inlet 4 according to the position where the stove generates oil smoke and cooperates with the wind cover assembly to only open the air inlet on the corresponding side, so that the fan unit can perform oil smoke absorption work at a lower power. Alternatively, when oil smoke is generated at both sides of the stove at the same time, the fan unit 6 slides to the position between the first air inlet 3 and the second air inlet 4, cooperates with the wind cover assembly to simultaneously open the first air inlet 3 and the second air inlet 4, so that the oil smoke absorption work can be performed on both sides of the stove at the same time, effectively solving the problem of oil smoke escape, ensuring the maximum use of the performance of the fan unit 6, and having a good oil smoke absorption effect.

[0032] See also Figure 4 and Figure 5 In one embodiment, it also includes a sensing device 11 electrically connected to the control module. The sensing device 11 is used to detect whether the temperature or oil fume concentration at the two sides below the range hood reaches a preset value. The control module can control the range hood body 1 to enter the first working state, the second working state or the third working state according to the feedback signal of the sensing device 11. By setting it in this way, the working state of the range hood can be intelligently controlled by setting the sensing device 11.

[0033] In one embodiment, the sensing device 11 is an infrared thermal imager, which is provided with one, and the infrared thermal imager detects the positions on both sides below the range hood in a covering manner, and then displays and judges whether the temperature of the left and right positions below the range hood reaches a preset value based on multiple points in the infrared thermal imaging data. If only the temperature of the left position below the range hood reaches the preset value, a feedback signal is sent to the control module to control the range hood to enter the first working state, if only the temperature of the right position below the range hood reaches the preset value, a feedback signal is sent to the control module to control the range hood to enter the second working state, and if the temperature of both the left and right positions below the range hood reaches the preset value, a feedback signal is sent to the control module to control the range hood to enter the third working state.

[0034] In one embodiment, the sensing device 11 is a temperature sensor located in the middle of the range hood or a group of two temperature sensors located on both sides of the range hood. The temperature sensor can simultaneously detect the temperature of the left and right positions below the range hood. If only the temperature of the left position below the range hood reaches a preset value, a feedback signal is sent to the control module to control the range hood to enter a first working state. If only the temperature of the right position below the range hood reaches a preset value, a feedback signal is sent to the control module to control the range hood to enter a second working state. If the temperatures of both the left and right positions below the range hood reach the preset value, a feedback signal is sent to the control module to control the range hood to enter a third working state.

[0035] In the above-mentioned scheme of detecting whether the temperature at the left and right positions below the range hood reaches the preset value, the preset value can be defined according to actual use, and the numerical value of the preset value is not specifically limited.

[0036] In one embodiment, the sensing device 11 is a group of two oil fume concentration detectors respectively located on both sides of the range hood. The oil fume concentration detector can simultaneously detect the oil fume concentration on the left and right sides below the range hood. If only the oil fume concentration on the left side below the range hood reaches a preset value, a feedback signal is sent to the control module to control the range hood to enter a first working state. If only the oil fume concentration on the right side below the range hood reaches the preset value, a feedback signal is sent to the control module to control the range hood to enter a second working state. If the oil fume concentration on both the left and right sides below the range hood reaches the preset value, a feedback signal is sent to the control module to control the range hood to enter a third working state.

[0037] By such arrangement, the sensing device 11 detects the working state of the cooker by detecting the temperature or the concentration of oil smoke, and the detection method has good reliability.

[0038] See also Figures 1 to 5In one embodiment, the fan device 6 is a double-inlet centrifugal fan, and an exhaust pipe 62 is connected to the top of the fan device 6, and the exhaust pipe 62 is preferably a corrugated pipe; through such an arrangement, when the range hood is in the third working state, the double-inlet centrifugal fan can simultaneously absorb oil fume from the first air intake port 3 and the second air intake port 4 on both sides, respectively, and the oil fume removal effect is good.

[0039] In one embodiment, the driving mechanism 2 is an electric screw; through such a configuration, the fan device 6 moves quickly, stably and smoothly.

[0040] See also Figures 1 to 5 In one embodiment, the relative outer sides of the first air cover 31 and the second air cover 41 are respectively rotatably connected to the range hood body 1, and the first air cover 31 and the second air cover 41 are respectively connected to the corresponding drivers through a connecting rod structure, and the connecting rod structure includes a swing rod 71 and a push rod 72 that are rotatably connected to each other at one end, and the first driver 32 and the second driver 42 are motors respectively, wherein one end of the swing rod 71 of one group is connected to the first driver 32, and the other end of the push rod 72 of the group is connected to the first air cover 31, and the first driver 32 can open or close the first air suction port 3 by driving the connecting rod structure for relative movement, and one end of the swing rod 71 of the other group is connected to the second driver 42, and the other end of the push rod 72 of the group is connected to the second air cover 41, and the second driver 42 can open or close the second air suction port 4 by driving the connecting rod structure for relative movement; through such a configuration, the connecting rod structure is simply configured, and the effect of driving the first air cover 31 and the second air cover 41 to open or close is good.

[0041] In one embodiment (not shown), a WiFi module connected to the control module is further included, and the mobile terminal can control the working state of the range hood through the WiFi module, such as controlling the switching between the off state, the first working state, the second working state and the third working state, and adjusting the exhaust volume of the fan device 6; through such a setting, it is convenient for users to use the mobile terminal to control the working state of the range hood through the Internet, which is convenient to use.

[0042] In one embodiment (not shown), it also includes a voice module connected to the control module, and the user can control the working state of the range hood through the voice module, such as voice control to switch between the off state, the first working state, the second working state and the third working state, and adjust the exhaust volume of the fan device 6; through such a setting, it is convenient for the user to control the working state of the range hood through the voice module, which is convenient to use.

[0043] In one embodiment (not shown), the control module can adaptively adjust the air volume of the fan device 6 according to the detected temperature or oil fume concentration. For example, the detected temperature value or oil fume concentration value can be divided into levels, and then the corresponding air volume level of the fan device 6 can be set. The specific detected temperature value or oil fume concentration value level division and the corresponding air volume level of the fan device 6 can be set according to actual conditions, without limiting the specific value. Through such a setting, the problem of oil fume escape is effectively solved, ensuring the maximum use of the performance of the fan device 6 and a good oil fume absorption effect.

[0044] In one embodiment, the first air suction port 3 and the second air suction port 4 are openings that are connected to each other.

[0045] In this embodiment, the first air suction port 3 and the second air suction port 4 are divided into two independent openings.

[0046] In one embodiment (not shown), a control module is also included, which is arranged on the range hood and connected to the control module. The working state of the range hood is controlled by the control module, such as switching between the off state, the first working state, the second working state and the third working state, and adjusting the exhaust volume of the fan device 6.

[0047] According to the disclosure and teaching of the above description, the technical personnel in the field to which the utility model belongs can also change and modify the above implementation. Therefore, the utility model is not limited to the specific implementation methods disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the utility model.

Claims

1. A range hood with fire extinguishing function, characterized in that: include: The range hood body is provided with an air suction port at the lower part; A fan device is arranged in the range hood body and connected to the air intake port; The fire extinguishing device is arranged on the side of the range hood body, and includes a storage chamber, a fire extinguishing bomb, an electromagnetic lock, a pull ring puller and a cover. A delivery port is arranged at the bottom of the storage chamber, and the cover includes a cover plate and a locking portion. The cover plate covers the bottom of the delivery port, and the locking portion is locked by a lock tongue of the electromagnetic lock. The fire extinguishing bomb is arranged in the storage chamber and placed on the top of the cover. The pull ring puller is connected with the pull ring of the fire extinguishing bomb and is used to pull out the pull ring of the fire extinguishing bomb when the fire extinguishing bomb falls downward through the delivery port to delay the detonation of the fire extinguishing bomb. The electromagnetic lock unlocks the locking portion to open the delivery port, thereby causing the fire extinguishing bomb to fall downward through the delivery port.

2. The range hood with fire extinguishing function according to claim 1, characterized in that: It also includes an elastic mechanism, which is arranged on the top of the storage chamber, and the lower end of the elastic mechanism abuts against the top of the fire extinguishing bomb, so that the fire extinguishing bomb abuts against the covering part.

3. The range hood with fire extinguishing function according to claim 1, characterized in that: The locking portion is located on the top of the cover plate, and the electromagnetic lock is arranged in the storage chamber.

4. The range hood with fire extinguishing function according to claim 1, characterized in that: The fire extinguishing device further comprises a storage box arranged on the outer side of the bottom of the range fumes machine body, and the storage chamber is formed in the inner space of the storage box.

5. The range hood with fire extinguishing function according to claim 1, characterized in that: The outer diameter of the cover plate is larger than the inner diameter of the delivery port, and when the covering part covers the delivery port, the outer edge of the cover plate is located outside the delivery port.

6. The range hood with fire extinguishing function according to claim 1, characterized in that: The fire extinguishing devices are respectively arranged on both sides of the range fumes machine body.

7. The range hood with fire extinguishing function according to claim 6, characterized in that: The fire extinguishing devices are respectively provided with two at both sides of the range hood body along the width direction.

8. The range hood with fire extinguishing function according to any one of claims 1 to 7, characterized in that: It also includes a control module and a sensing device, wherein the sensing device is an infrared thermal imager sensor, and the sensing device is used to detect a fire image under the range hood, and then feed back a signal to the control module to control the electromagnetic lock to unlock the cover.

9. The range hood with fire extinguishing function according to any one of claims 1 to 7, characterized in that: It also includes an air cover assembly and a control module, the air inlet includes a first air inlet and a second air inlet located on both sides, a slide rail device and a driving mechanism are provided inside the range hood body, and the fan device can be slidably connected to the slide rail device; the driving mechanism is used to drive the fan device to move along the slide rail device between the upper side of the first air inlet and the upper side of the second air inlet; The air cover assembly includes a first air cover and a second air cover, wherein the first air cover is connected to the range hood body and driven by a first driver to relatively open or close the first air suction port, and the second air cover is connected to the range hood body and driven by a second driver to relatively open or close the second air suction port; The control module is electrically connected to the first driver, the second driver, the fan device and the driving mechanism respectively; When the fan device is working, the range hood has a first working state in which the fan device moves to the upper side of the first air suction port and only opens the first air suction port, a second working state in which the fan device moves to the upper side of the second air suction port and only opens the second air suction port, and a third working state in which the fan device moves to the upper side between the first air suction port and the second air suction port and simultaneously opens the first air suction port and the second air suction port.

10. The range hood with fire extinguishing function according to claim 9, characterized in that: It also includes a sensing device electrically connected to the control module, the sensing device is used to detect whether the temperature or oil fume concentration at the two sides below the range hood reaches a preset value, and the control module controls the range hood body to enter the first working state, the second working state or the third working state according to the feedback signal of the sensing device.

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