Range hood with smoke baffle

Abstract

A range hood with a smoke baffle comprises a fan housing and a box shell arranged below the fan housing, an air inlet is formed on the box shell, a smoke baffle for opening and closing the air inlet is installed on the box shell, the smoke baffle comprises an upper smoke baffle and a lower smoke baffle, the upper portion of the upper smoke baffle is rotatably connected to the front portion of the box shell, the lower portion of the upper smoke baffle is rotatably connected to the upper portion of the lower smoke baffle, a driver is installed inside the box shell, and the driving output end of the driver is rotatably connected to the lower portion of the lower smoke baffle. The advantage of the present invention is that when the driver drives the range hood with a smoke baffle, the upper smoke baffle and the lower baffle are folded with each other and then extend forward from the smoke collecting hood to open the air inlet, so the movable smoke baffle can not only block the wide air inlet on the smoke collecting hood, but also play a role in gathering smoke at the air inlet of the whole machine, effectively improving the fume extraction effect.

Description

Technical Field

[0001] The invention relates to a range hood, in particular to a range hood with a smoke baffle. Background Art

[0002] At present, the air inlet design of ordinary range hoods does not conform to the cooking habits of Chinese double-burner stoves. The unreasonable design of the air inlet position and size will lead to a decrease in the efficiency of the range hood fan system, a decrease in the oil fume extraction effect of the whole machine, and a poor user experience. Especially for the close-suction range hood, the air inlet size of the close-suction range hood is limited, and the smoke hood of the range hood is equipped with a flip-type smoke baffle. When the range hood is not in use, the smoke baffle is flipped to the bottom of the air inlet to block the air inlet to ensure the good appearance of the range hood. When the range hood is in use, the smoke baffle is flipped to open the air inlet. In order to prevent the smoke baffle from blocking the sight of the operating user, the front and rear width of the smoke baffle cannot be too wide, otherwise it will inevitably affect the user's head space, and the front and rear dimensions of the air inlet will also be limited. When the front and rear dimensions of the air inlet become smaller, the area of ​​the air inlet will become smaller when the left and right widths of the air inlet remain unchanged, thereby reducing the oil fume extraction effect of the range hood. In addition, even when the smoke shield is opened, the opening and closing angle of the air inlet of the existing range hood is not large enough, which is not conducive to cleaning the switch and washing the inside of the range hood. In summary, the existing range hood with a smoke shield needs to be further improved. Summary of the invention

[0003] The first technical problem to be solved by the present invention is to provide a range hood with a smoke baffle having a large air inlet opening and closing angle and good oil fume absorbing effect in view of the above-mentioned existing technical status.

[0004] The second technical problem to be solved by the present invention is to provide a range hood with a smoke baffle that can reduce noise during cooking and allow the air inlet to open and close at a larger angle, in response to the above-mentioned current technical status.

[0005] The third technical problem to be solved by the present invention is to provide a range hood with a smoke baffle so that the range hood switch is not easily exposed to the oil smoke or steam environment in view of the above-mentioned existing technical status.

[0006] The technical solution adopted by the present invention to solve the first technical problem mentioned above is: the range hood with a smoke baffle comprises a fan cover and a box shell arranged below the fan cover, a fan is installed in the fan cover, an air inlet is opened on the box shell, and a smoke baffle for opening and closing the air inlet is installed on the box shell, characterized in that: the smoke baffle comprises an upper smoke baffle and a lower smoke baffle, the upper part of the upper smoke baffle is rotatably connected to the front part of the box shell, the lower part of the upper smoke baffle is rotatably connected to the upper part of the lower smoke baffle, a driver is installed inside the box shell, and the drive output end of the driver is rotatably connected to the lower part of the lower smoke baffle.

[0007] The upper smoke baffle and the lower smoke baffle may have a variety of rotation structures. Preferably, the upper smoke baffle is hinged to the box shell and the lower smoke baffle via a first hinge mechanism, and the drive output end of the driver is hinged to the lower smoke baffle via a second hinge mechanism.

[0008] As a preferred solution, the driver is a motor mounted on the top plate of the box shell, the drive output end is a connecting rod mounted on the motor output shaft and capable of rotating relative to the motor output shaft, and the lower end of the connecting rod is hinged to the lower smoke baffle. With this structure, after the lower smoke baffle and the upper smoke baffle are opened, the lower smoke baffle can be folded to the back of the upper smoke baffle.

[0009] As another preferred solution, the driver includes an electric push rod and a connecting rod, the upper end of the connecting rod is hinged to the top plate of the box shell, the lower end of the connecting rod is hinged to the lower part of the lower smoke baffle, the electric push rod is arranged at the rear side of the connecting rod, the body of the electric push rod is hinged to the box shell, and the piston rod of the electric push rod extends forward and is hinged to the middle part of the connecting rod. After adopting this structure, after the lower smoke baffle and the upper smoke baffle are opened, the lower smoke baffle can be folded to the back of the upper smoke baffle.

[0010] The technical solution adopted by the present invention to solve the above-mentioned second technical problem is that the driver of the range hood with a smoke baffle includes a driving source and an electric telescopic rod that can rotate under the drive of the driving source, the electric telescopic rod constitutes the driving output end, and the piston rod of the electric telescopic rod extends downward and is hinged with the lower smoke baffle. After adopting the structure of the electric telescopic rod, the lower smoke baffle can be opened when the upper smoke baffle is still closed, and when the upper smoke baffle is closed and the lower smoke baffle is opened, the upper smoke baffle can block the noise emitted by the fan and reflect it, thereby reducing the noise during cooking, and the upper smoke baffle and the lower smoke baffle can also be fully opened, and when the upper smoke baffle and the lower smoke baffle are fully opened, the opening and closing angle of the air inlet is larger, the upper smoke baffle and the lower smoke baffle are in or substantially in the same plane, the smoke collection effect is better, and it is more conducive to improving the oil fume extraction effect, and it is convenient to clean the inside of the range hood and to repair and disassemble the range hood switch.

[0011] As a preferred solution of the electric telescopic rod, the driving source is a motor installed on the top plate of the box shell, and the body of the electric telescopic rod is rotatably connected to the output shaft of the motor.

[0012] As another preferred embodiment of the electric telescopic rod, the driving source is an electric push rod, which is arranged on the rear side of the electric telescopic rod, the body of the electric push rod is hinged to the box shell, the piston rod of the electric push rod is hinged to the middle part of the body of the electric telescopic rod, the upper end of the body of the electric telescopic rod is hinged to the top plate of the box shell, and the piston rod of the electric telescopic rod extends downward and is hinged to the lower smoke shield.

[0013] The technical solution adopted by the present invention to solve the above-mentioned third technical problem is that the range hood also includes a range hood switch, and the range hood switch is installed on the back of the upper smoke shield, and when the air inlet is open, the lower smoke shield can be folded to the back of the upper smoke shield to cover the range hood switch.

[0014] Further preferably, when the air inlet is fully closed, the upper smoke baffle and the lower smoke baffle are flush with each other and completely cover the air inlet, and when the air inlet is fully opened, the upper smoke baffle and the lower smoke baffle are driven by the driver to rotate to the front side of the box shell.

[0015] The air inlet can have a variety of structures. Preferably, the plane where the air inlet is located is an inclined plane that slopes downward from front to back, and the front edge of the air inlet is adjacent to the front side plate of the box shell, and the rear edge of the air inlet is adjacent to the rear side plate of the box shell. In this way, the air inlet area is larger, and correspondingly, the negative pressure area is also larger, thereby effectively improving the oil fume absorption effect.

[0016] As a preferred embodiment of any of the above schemes, the fan is a centrifugal fan.

[0017] Compared with the prior art, the advantages of the present invention are as follows: the upper part of the upper smoke baffle of the range hood with a smoke baffle is rotatably connected to the front part of the housing, the lower part of the upper smoke baffle is rotatably connected to the upper part of the lower smoke baffle, the driving output end of the driver inside the housing is rotatably connected to the lower part of the lower smoke baffle, and under the drive of the driver, the upper smoke baffle and the lower baffle are folded with each other and extend forward from the smoke collecting hood to open the air inlet, so the movable smoke baffle can not only block the wide air inlet on the smoke collecting hood, but also play a role in collecting smoke at the air inlet of the whole machine, thereby improving the oil fume extraction effect. In particular, after being driven by an electric telescopic rod, after the lower smoke baffle and the upper smoke baffle are fully opened, it is convenient to clean the inside of the range hood and to repair and disassemble the range hood switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0019] Figure 2 It is a structural schematic diagram of another angle of embodiment 1 of the present invention;

[0020] Figure 3 It is a schematic diagram of a partial structure of the first embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the first embodiment of the present invention when the smoke baffle is in a closed state;

[0022] Figure 5 This is a schematic structural diagram of the smoke baffle in the process of opening according to the first embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the structure of the first embodiment of the present invention when the smoke baffle is fully opened;

[0024] Figure 7 This is a schematic diagram of the structure of the second embodiment of the present invention when the smoke baffle is in a closed state;

[0025] Figure 8 This is a schematic diagram of the structure of the second embodiment of the present invention when the smoke baffle is fully opened;

[0026] Fig. 9 This is a schematic diagram of the structure of Embodiment 3 of the present invention when only the lower smoke baffle is opened;

[0027] Fig.10 for Fig. 9 Schematic diagram of the structure when the upper and lower smoke shields of the foundation are further opened;

[0028] Fig.11 This is a schematic diagram of the structure of the third embodiment of the present invention after both the lower smoke shield and the upper smoke shield are opened;

[0029] Fig.12 This is a schematic diagram of the structure of the third embodiment of the present invention after the lower smoke shield and the upper smoke shield are fully opened;

[0030] Fig.13 This is a schematic diagram of the structure of the fourth embodiment of the present invention when only the lower smoke baffle is opened;

[0031] Fig.14 Based Fig.13 Schematic diagram of the structure when the upper and lower smoke shields of the foundation are further opened;

[0032] Fig.15 This is a schematic diagram of the structure of the fourth embodiment of the present invention after the lower smoke shield and the upper smoke shield are both opened;

[0033] Fig.16 This is a schematic diagram of the structure of the fourth embodiment of the present invention after the lower smoke shield and the upper smoke shield are fully opened. DETAILED DESCRIPTION

[0034] The present invention is further described in detail below with reference to the accompanying drawings.

[0035] Embodiment 1:

[0036] like Figures 1 to 6 As shown, the range hood with a smoke baffle in this embodiment includes a fan housing 1 and a box shell 2 arranged below the fan housing, a fan 3 is installed in the fan housing 1, an air inlet 21 is opened on the box shell 2, and an upper smoke baffle 4 and a lower smoke baffle 5 are installed on the box shell 2. The upper part of the upper smoke baffle 4 is rotatably connected to the front part of the box shell 2, and the lower part of the upper smoke baffle 4 is rotatably connected to the upper part of the lower smoke baffle 5. A driver is installed inside the box shell 2, and the drive output end of the driver is rotatably connected to the lower part of the lower smoke baffle 5. Specifically, the upper smoke baffle 4 is hinged to the box shell 2 and the lower smoke baffle 5 through a first hinge mechanism 8, and the drive output end of the driver is hinged to the lower smoke baffle 5 through a second hinge mechanism 9. Driven by the driver, the upper smoke baffle 4 and the lower smoke baffle 5 can open or close the air inlet 21 after rotation.

[0037] In this embodiment, the plane where the air inlet 21 is located is an inclined plane that is inclined downward from front to back, and the front edge of the air inlet 21 is adjacent to the front side plate 23 of the box shell, and the rear edge of the air inlet 21 is adjacent to the rear side plate 24 of the box shell, that is, the air inlet 21 is a wide air inlet. When the air inlet 21 is fully closed, the upper smoke baffle 4 and the lower smoke baffle 5 are flush and completely cover the air inlet 21. When the air inlet 21 is fully opened, the upper smoke baffle 4 and the lower smoke baffle 5 are driven by the driver to rotate to the front side of the box shell 2, so as not to interfere with the air intake, and increase the negative pressure area, which is conducive to improving the oil fume absorption effect.

[0038] The driver of this embodiment is a motor 61 installed on the top plate 22 of the box shell, and the drive output end is a connecting rod 62 installed on the motor output shaft and can rotate relative to the motor output shaft. The lower end of the connecting rod 62 is hinged to the lower smoke baffle 5 through a second hinge mechanism 9.

[0039] like Figure 4 As shown, the upper smoke baffle 4 and the lower smoke baffle 5 are closed to close the air inlet 21. Figure 5 As shown, under the drive of the motor 61, the connecting rod 62 rotates and drives the lower smoke shield 5 and the upper smoke shield 4 to rotate, so that the air inlet 21 is opened. At this time, although the air inlet 21 has been opened, the upper smoke shield 4 and the lower smoke shield 5 will block the air intake. Figure 6As shown, driven by the motor 61, the connecting rod 62 further rotates, so that the lower smoke shield 5 and the upper smoke shield 4 are further flipped and both flipped to the front side of the box shell 2, and the lower smoke shield 5 is folded to the back of the upper smoke shield 4. Since the range hood switch 7 of this embodiment is installed on the back of the upper smoke shield 4, the lower smoke shield 5 folded to the back of the upper smoke shield 4 can cover the range hood switch 7, thereby effectively preventing the oil smoke from damaging the switch.

[0040] Embodiment 2:

[0041] like Figure 7 and Figure 8 As shown, the driver of this embodiment includes an electric push rod 63 and a connecting rod 64. The upper end of the connecting rod 64 is hinged to the top plate 22 of the box shell, and the lower end of the connecting rod 64 is hinged to the lower part of the lower smoke baffle 5. The electric push rod 63 is arranged at the rear side of the connecting rod 64. The body of the electric push rod 63 is hinged to the rear side plate 24 of the box shell. The piston rod of the electric push rod 63 extends forward and is hinged to the middle part of the connecting rod 64. Figure 7 As shown, the air inlet 21 is in a closed state. Figure 8 As shown, the electric push rod 63 drives the connecting rod 64 to rotate, and drives the upper smoke baffle plate 4 and the lower smoke baffle plate 5 , and finally makes the lower smoke baffle plate 5 fold to the back of the upper smoke baffle plate 4 .

[0042] Embodiment three:

[0043] like Figures 9 to 13 As shown, the driver of this embodiment includes a motor 61 and an electric telescopic rod 65 that can rotate under the drive of the motor. The motor is installed on the top plate 22 of the box shell. The electric telescopic rod 65 constitutes the driving output end of the motor 61. The body of the electric telescopic rod 65 is rotatably connected to the motor output shaft. The piston rod of the electric telescopic rod 65 extends downward and is hinged to the lower smoke baffle 5 through the second hinge mechanism 9.

[0044] exist Fig. 9 and Fig.10 In the state shown, only the lower smoke baffle 5 is open, and the upper smoke baffle 4 is still closed. At this time, the upper smoke baffle 4 can block and reflect the noise generated by the fan, thereby reducing the noise of the range hood. Fig.11 As shown in FIG. 1 , driven by the motor 61, the electric telescopic rod 65 is further extended, thereby driving the lower smoke shield 5 and the upper smoke shield 4 to flip to the same plane. At this time, the air inlet 21 is opened, but the upper smoke shield 4 and the lower smoke shield 5 are located below the air inlet 21, which greatly interferes with the air intake. Next, if the electric telescopic rod 65 is further extended forward, the lower smoke shield 5 and the upper smoke shield 4 rotate to the same plane as shown in FIG. Fig.12In the state shown, the air inlet 21 is fully opened, the upper smoke baffle 4 and the lower smoke baffle 5 are both rotated to the front side of the box shell 2, and the lower smoke baffle 5 and the upper smoke baffle 4 are in the same plane. At this time, it is convenient to clean the inside of the range hood and also convenient to repair and disassemble the range hood switch 7.

[0045] Embodiment 4:

[0046] like Figures 13 to 16 As shown, compared with the third embodiment, the driving source of this embodiment adopts an electric push rod 63, the electric push rod 63 is arranged on the rear side of the electric telescopic rod 65, the body of the electric push rod 63 is hinged on the rear side plate 24 of the box shell, the piston rod of the electric push rod 63 is hinged to the middle part of the body of the electric telescopic rod 65, the upper end of the body of the electric telescopic rod 65 is hinged on the top plate 22 of the box shell, and the piston rod of the electric telescopic rod 65 extends downward and is hinged to the lower smoke baffle 5 through the second hinge mechanism 9.

[0047] like Fig.13 As shown, the piston rod of the electric push rod 63 does not extend, and only the piston rod of the electric telescopic rod 65 extends forward. At this time, the upper smoke baffle 4 is still closed, and only the lower smoke baffle 5 is opened. Fig.14 As shown, the piston rod of the electric telescopic rod 65 is further extended forward, and the lower smoke baffle 5 is further opened, but the upper smoke baffle 4 is still in a closed state. Fig.15 As shown, the piston rod of the electric push rod 63 begins to extend forward, so that the upper smoke baffle 4 is also opened. Fig.16 As shown, as the piston rod of the electric push rod 63 continues to extend forward, the air inlet 21 is fully opened, and the upper smoke baffle 4 and the lower smoke baffle 5 are both rotated to the front side of the box shell 2. The working principle of this embodiment is the same as that of the third embodiment, and will not be described in detail here.

Claims

1. A range hood with a smoke baffle, comprising a fan housing (1) and a housing (2) disposed below the fan housing, a fan (3) being installed in the fan housing (1), an air inlet (21) being provided on the housing (2), and a smoke baffle for opening and closing the air inlet (21) being installed on the housing (2), characterized in that: The smoke shield comprises an upper smoke shield (4) and a lower smoke shield (5), the upper portion of the upper smoke shield (4) being rotatably connected to the front portion of the housing shell (2), and the lower portion of the upper smoke shield (4) being rotatably connected to the upper portion of the lower smoke shield (5), a driver being installed inside the housing shell (2), a driving output end of the driver being rotatably connected to the lower portion of the lower smoke shield (5), the driver comprising a driving source and an electric telescopic rod (65) that can rotate under the drive of the driving source, the electric telescopic rod (65) constituting the driving At the output end of the electric telescopic rod (65), the piston rod of the electric telescopic rod (65) extends downward and is hinged to the lower smoke baffle (5). When the air inlet (21) is fully closed, the upper smoke baffle (4) and the lower smoke baffle (5) are flush with each other and completely cover the air inlet (21). When the air inlet (21) is fully opened, the upper smoke baffle (4) and the lower smoke baffle (5) are driven by the driver to rotate to the front side of the box shell (2), and the lower smoke baffle (5) and the upper smoke baffle (4) are in the same plane.

2. The range hood with a smoke baffle according to claim 1, characterized in that: The upper smoke baffle (4) is hingedly connected to the box shell (2) and the lower smoke baffle (5) via a first hinge mechanism (8), and the drive output end of the driver is hingedly connected to the lower smoke baffle (5) via a second hinge mechanism (9).

3. The range hood with a smoke baffle according to claim 1, characterized in that: The driver is a motor (61) mounted on the top plate (22) of the housing, and the drive output end is a connecting rod (62) mounted on the motor output shaft and rotatable relative to the motor output shaft. The lower end of the connecting rod (62) is hinged to the lower smoke baffle (5).

4. The range hood with a smoke baffle according to claim 1, characterized in that: The driving source is a motor (61) mounted on the top plate (22) of the box shell, and the body of the electric telescopic rod (65) is rotatably connected to the output shaft of the motor.

5. The range hood with a smoke baffle according to claim 1, characterized in that: The driving source is an electric push rod (63), which is arranged on the rear side of the electric telescopic rod (65), the body of the electric push rod (63) is hinged on the box shell (2), the piston rod of the electric push rod (63) is hinged to the middle part of the body of the electric telescopic rod (65), the upper end of the body of the electric telescopic rod (65) is hinged on the top plate (22) of the box shell, and the piston rod of the electric telescopic rod (65) extends downward and is hinged to the lower smoke baffle (5).

6. The range hood with a smoke baffle according to claim 1, characterized in that: It also includes a range hood switch (7), which is mounted on the back of the upper smoke shield (4), and when the air inlet (21) is open, the lower smoke shield (5) can be folded to the back of the upper smoke shield (4) to cover the range hood switch (7).

7. The range hood with a smoke baffle according to any one of claims 1 to 6, characterized in that: The plane where the air inlet (21) is located is an inclined plane that slopes downward from front to back, and the front edge of the air inlet (21) is adjacent to the front side plate (23) of the box shell, and the rear edge of the air inlet (21) is adjacent to the rear side plate (24) of the box shell.

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