Range hood

Abstract

The utility model relates to a range hood, which comprises a machine body, an air inlet and an air outlet, the smoke baffle is arranged on the machine body in a front-back overturning manner and is used for opening and closing the air inlet; a smoke baffle support is arranged on the back face of the smoke baffle, the smoke baffle support covers the back face of the smoke baffle, the smoke baffle support and the smoke baffle jointly define a hollow cavity, the hollow cavity extends to the lower edge of the smoke baffle, and an auxiliary air suction opening communicated with the hollow cavity is formed in the lower edge of the smoke baffle. A rotating frame used for being rotationally connected with the machine body is arranged at the position, close to the upper edge, of the back face of the smoke baffle, an air outlet cavity communicated with the hollow cavity is defined in the rotating frame, and an air outlet communicated with the air outlet cavity is formed in the side, facing the interior of the machine body, of the rotating frame. The range hood has the advantages that the problem of lampblack escape can be effectively reduced under the condition that the original width of the smoke baffle is kept unchanged.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a range hood. Background Art

[0002] A range hood is a kitchen appliance that purifies the kitchen environment. In order to improve the smoke trapping effect, a smoke shield is usually provided at the air inlet of the range hood. The larger the width of the smoke shield is, the better the smoke trapping effect is. However, due to the limitation of the size of the range hood, especially for the reversible smoke shield, the size of the smoke shield needs to be compatible with the overall size of the body and the air inlet. If the smoke shield is widened, the lower body needs to be lengthened, and the width of the smoke inlet also needs to be increased, which is difficult to meet the design requirements. Therefore, when a large amount of oil smoke is generated during stir-frying, the oil smoke escapes from the front of the range hood.

[0003] To this end, the Chinese utility model patent with application number CN202020066610.2 (authorization announcement number CN211822584U) discloses a range hood, including a shell and a fan system arranged in the shell, the lower part of the shell has a vertically extending smoke inlet chamber, the front side wall of the lower part of the shell is provided with a smoke inlet connected to the smoke inlet chamber, and a smoke baffle extending forward horizontally or obliquely is arranged along the upper edge of the smoke inlet, and the front side position of the smoke baffle also has an extension plate that can be telescopically moved forward and backward relative to the smoke baffle to change the width of the smoke baffle. The extension plate that can be telescopically moved forward and backward to change the width of the smoke baffle is arranged on the front side of the smoke baffle. When the oil smoke concentration is large, the extension plate can be extended to increase the width of the smoke baffle to improve the smoke collection effect, and then improve the oil suction effect; when the oil smoke concentration is small or not in use, the extension plate can be retracted without affecting the size of the whole machine and the size design of the smoke inlet.

[0004] However, in the above patent, a relatively slidable extension plate structure is provided on the front side of the smoke shield, and a corresponding driving member is provided on the back side of the smoke shield to drive the extension plate to telescope. Such a smoke shield structure is relatively complex and has a high production cost. In addition, the extended smoke shield may interfere with the pots on the stove and block the user's cooking vision. Therefore, how to effectively reduce the escape of oil smoke while maintaining the original width of the smoke shield has become a technical problem that needs to be urgently solved by technical personnel in this field. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a range hood which can effectively reduce the problem of oil smoke escape while maintaining the width of the original smoke baffle unchanged, in view of the current status of the prior art.

[0006] The technical solution adopted by the utility model to solve the above technical problems is: a range hood, comprising:

[0007] A machine body, the front portion of which is provided with an air inlet;

[0008] A smoke baffle, which can be turned back and forth and is arranged on the machine body, and opens and closes the air inlet;

[0009] A smoke plate bracket is provided on the back of the smoke shield, and the smoke plate bracket covers the back of the smoke shield and defines a hollow chamber together with the smoke shield. The hollow chamber extends to the lower edge of the smoke shield and an auxiliary air intake port connected to the hollow chamber is formed at the lower edge. A rotating frame for rotationally connecting to the machine body is provided on the back of the smoke shield adjacent to the upper edge, and an air outlet chamber connected to the hollow chamber is defined inside the rotating frame. An air outlet connected to the air outlet chamber is provided on the side of the rotating frame facing the inside of the machine body.

[0010] In order to avoid interference between the rotating frame and the front panel of the machine body during rotation, the machine body includes a front panel, the front panel is provided with the air inlet, and the front panel is also provided with a first clearance opening for the rotating frame to pass through. During the rotation of the rotating frame, the air outlet on the rotating frame is always located in the machine body.

[0011] In order to reduce the opening area of ​​the first yield opening as much as possible to ensure aesthetics and refinement, the rotating frame is a plate structure that is an overall triangular shape. The rotating frame has a first side whose extension direction is consistent with the extension direction of the smoke shield and a second side whose extension direction is perpendicular to the extension direction of the smoke shield. The first side of the rotating frame is connected to the smoke plate bracket, and a connecting port connected to the hollow chamber is opened at the first side. The air outlet is opened at the second side of the rotating frame, and the corner where the first side and the second side of the rotating frame meet is rotatably connected to the machine body.

[0012] In order to facilitate the connection between the rotating frame and the machine body, the machine body includes a top plate, a mounting bracket is provided on the bottom wall of the top plate, and the rotating frame is rotatably connected to the mounting bracket.

[0013] In order to ensure that the smoke shield can be tightly covered when it is deflected backward to the extreme position, the mounting bracket is a strip bracket extending forward and backward. When the smoke shield is in a state of closing the air inlet, the mounting bracket extends into the air outlet chamber of the rotating frame through the air outlet of the rotating frame.

[0014] As an improvement, it also includes a driving member for driving the smoke baffle to deflect forward and backward relative to the machine body.

[0015] Generally speaking, the driving member can be a variety of motion mechanisms or electric push rods connected to a driving motor and a transmission component that can drive the first smoke shield to deflect forward and backward. Preferably, the driving member is an electric push rod, which has a telescopic rod that can be linearly extended and retracted. The main body of the electric push rod is rotatably connected to the rear side wall of the machine body, and the end of the telescopic rod is rotatably connected to the smoke shield.

[0016] Similarly, in order to avoid the problem that the electric push rod interferes with the front panel of the machine body during movement, a second clearance opening for the telescopic rod to pass through is opened on the front panel of the machine body.

[0017] In order to ensure the stability of the overall rotation of the smoke shield, the rotating frame has two arranged in sequence along the left and right directions, and the hollow chamber and the auxiliary air suction port also have two corresponding ones.

[0018] Of course, the two hollow chambers and auxiliary air intake ports arranged in sequence on the left and right can also better adapt to the conventional left and right burners, realize the suction and exhaust of the smoke baffle in the key area, and reduce the escape of oil smoke.

[0019] In order to ensure the overall aesthetics of the range hood, when the smoke baffle is in a closed state, the smoke baffle covers the entire front panel of the range hood body.

[0020] Compared with the prior art, the advantages of the utility model are as follows: the hollow chamber defined by the smoke plate bracket and the smoke plate body on the back side of the smoke baffle and the air outlet chamber arranged on the rotating frame where the smoke baffle rotates relative to the machine body can together form a smoke channel. When a large amount of oil smoke rises, the smoke flowing to the edge of the smoke baffle can enter the above-mentioned smoke channel through the auxiliary air suction port of the smoke baffle, and further enter the interior of the machine body through the smoke channel, thereby preventing the smoke from escaping from the edge of the smoke baffle and improving the overall oil smoke suction effect of the range hood. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of a range hood according to an embodiment of the utility model;

[0022] Figure 2 It is a three-dimensional structural schematic diagram of the range hood of the embodiment of the utility model from another angle;

[0023] Figure 3 This is a cross-sectional view of the range hood according to an embodiment of the utility model cut along the front-to-back direction. DETAILED DESCRIPTION

[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0025] In the specification and claims of the present invention, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0026] Figure 1-Figure 3 A preferred embodiment of the utility model is shown, the range hood comprises a body 10, a fan system 60 and a smoke baffle 20. The fan system 60 is arranged in the body, and generally adopts a centrifugal fan. The body 10 comprises a front panel 11, a rear side wall 12, a left side wall (not shown), a right side wall (not shown), a bottom plate (not shown) and a top plate 13, and the front panel 11 is opposite to the rear side wall 12 in the front-to-back direction. The front panel 11 is basically arranged vertically, and an air inlet 110 is opened on it, and the air inlet port of the fan system arranged in the body 10 is opposite to the air inlet 110 on the front panel 11.

[0027] An oil cup 15 extending left and right is also provided on the rear side of the bottom plate of the machine body 10 , and the oil cup 15 is used to collect oil stains dripping from the machine body 10 .

[0028] The back of the smoke shield 20 is rotatably connected to the top plate 13 of the machine body 10 through a rotating frame 40 near its upper edge. Specifically, a smoke shield bracket 30 is provided on the back of the smoke shield 20. The smoke shield bracket 30 is a plate structure as a whole. It covers the back of the smoke shield 20 and defines a hollow chamber 31 together with the smoke shield 20. The hollow chamber 31 extends to the lower edge of the smoke shield 20 and forms an auxiliary air inlet 32 ​​connected to the hollow chamber 31 at the lower edge. The rotating frame 40 is a plate structure in a triangular shape as a whole. The rotating frame 40 has a first side 41 whose extension direction is consistent with the extension direction of the smoke shield 20 and a second side 42 whose extension direction is perpendicular to the extension direction of the smoke shield 20. The first side 41 of the rotating frame 40 is connected to the smoke shield bracket 30 provided on the back of the smoke shield 20, and a connecting port 410 connected to the hollow chamber 31 is opened at the first side 41. The second side 42 of the rotating frame 40 is provided with an air outlet 420 which is in communication with the air outlet chamber 400. The corner where the first side 41 and the second side 42 of the rotating frame 40 meet is rotatably connected to the mounting bracket 14 of the top plate 13 of the machine body 10 through a corresponding pin shaft, and the pin shaft extends in the left-right direction.

[0029] The mounting bracket 14 of the present embodiment is a strip bracket extending forward and backward. When the smoke shield 20 is in a state of closing the air inlet 110, the mounting bracket 14 extends into the air outlet chamber 400 of the rotating frame 40 through the air outlet 420 of the rotating frame 40, thereby ensuring that the smoke shield 20 can be tightly covered when it is deflected backward to the extreme position.

[0030] The front panel 11 of the present embodiment is also provided with a first clearance opening 111 for the rotating frame 40 to pass through. During the rotation of the rotating frame, the air outlet 420 on the rotating frame 40 is always located in the machine body 10, so that the auxiliary air intake port 32 at the lower edge of the smoke shield 20 can be ensured to be in a relatively ideal negative pressure state. In addition, since the rotating frame 40 is triangular in shape, the longitudinal dimension of the first clearance opening 111 is only determined by the dimension of the first side 41 of the rotating frame 40, thereby reducing the opening area of ​​the first clearance opening 111 as much as possible to ensure the aesthetics and refinement of the machine body 10 of the range hood.

[0031] When the smoke baffle 20 is in the closed state, the smoke baffle 20 can cover the entire front panel 11 of the body 10, thereby ensuring the overall aesthetics of the body 10 of the range hood in the closed state.

[0032] The smoke baffle 20 of this embodiment is driven by a driving member and can deflect forward and backward relative to the machine body. Specifically, the driving member is an electric push rod 50, which has a telescopic rod 51 that can be linearly extended and retracted. The main body of the electric push rod 50 is rotatably connected to a hinge seat 52 on the rear side wall 12 of the machine body 10, and the end of the telescopic rod 51 is rotatably connected to the smoke baffle bracket 30 on the back side of the smoke baffle 20. Similarly, in order to avoid interference between the electric push rod 50 and the front panel 11 of the machine body 10 during movement, a second clearance opening 112 for the telescopic rod 51 to pass through is opened on the front panel 11 of the machine body 10. Figure 2 As shown, the second clearance opening 112 and the first clearance opening 111 are both disposed at the side positions of the front panel 11 of the machine body 10 in the left-right direction, that is, the electric push rod 50 is disposed at the left side or the right side of the machine body 10 .

[0033] The rotating frame 40 of this embodiment has two arranged in sequence along the left and right directions, respectively arranged at the left and right positions of the machine body 10, to ensure the stability of the overall rotation of the smoke shield 20. The smoke shield bracket 30 and the main body of the smoke shield 20 also have two corresponding hollow chambers 31, and similarly, the smoke shield bracket 30 also has two corresponding auxiliary air intake ports 32. The above-mentioned two left and right hollow chambers 31 and auxiliary air intake ports 32 can also better adapt to the conventional left and right burners, realize the suction and exhaust of the smoke shield 20 in the key area, and reduce the escape of oil smoke.

[0034] In this embodiment, the hollow chamber 31 defined by the smoke plate bracket 30 and the main body of the smoke damper 20 on the back side of the smoke damper 20 and the air outlet chamber 400 arranged on the rotating frame 40 that rotates the smoke damper 20 relative to the body 10 can together form a smoke channel. When a large amount of oil smoke rises, the smoke flowing to the edge of the smoke damper 20 can enter the above-mentioned smoke channel through the auxiliary air intake port 32 of the smoke damper 20, and further enter the interior of the body 10 through the smoke channel, thereby preventing the smoke from escaping from the edge of the smoke damper 20 and improving the overall oil smoke extraction effect of the range hood.

Claims

1. A range hood, comprising: A machine body (10) having an air inlet (110) at the front thereof; A smoke baffle (20) is disposed on the machine body (10) so as to be flippable forward and backward, and opens and closes the air inlet (110); Features: A smoke plate bracket (30) is provided on the back of the smoke shield (20), and the smoke plate bracket (30) covers the back of the smoke shield (20) and defines a hollow chamber (31) together with the smoke shield (20). The hollow chamber (31) extends to the lower edge of the smoke shield (20) and forms an auxiliary air intake port (32) connected to the hollow chamber (31) at the lower edge. A rotating frame (40) for rotationally connecting to the machine body (10) is provided on the back of the smoke shield (20) adjacent to the upper edge. An air outlet chamber (400) connected to the hollow chamber (31) is defined inside the rotating frame (40). An air outlet (420) connected to the air outlet chamber (400) is provided on the side of the rotating frame (40) facing the inside of the machine body (10).

2. The range hood according to claim 1, characterized in that: The machine body (10) comprises a front panel (11), the front panel (11) being provided with the air inlet (110), the front panel (11) also being provided with a first clearance opening (111) for the rotating frame (40) to pass through, and during the rotation of the rotating frame, the air outlet (420) on the rotating frame (40) is always located in the machine body (10).

3. The range hood according to claim 2, characterized in that: The rotating frame (40) is a plate structure that is overall triangular in shape. The rotating frame (40) has a first side (41) whose extension direction is consistent with the extension direction of the smoke shield (20) and a second side (42) whose extension direction is perpendicular to the extension direction of the smoke shield (20). The first side (41) of the rotating frame (40) is connected to the smoke shield bracket (30), and a connecting port (410) that is connected to the hollow chamber (31) is provided at the first side (41). The air outlet (420) is provided at the second side (42) of the rotating frame (40). The corner where the first side (41) and the second side (42) of the rotating frame (40) meet is rotatably connected to the machine body (10).

4. The range hood according to claim 3, characterized in that: The machine body (10) comprises a top plate (13), a mounting bracket (14) is provided on the bottom wall of the top plate (13), and the rotating frame (40) is rotatably connected to the mounting bracket (14).

5. The range hood according to claim 4, characterized in that: The mounting bracket (14) is a strip-shaped bracket extending forward and backward. When the smoke shield (20) is in a state of closing the air inlet (110), the mounting bracket (14) extends into the air outlet chamber (400) of the rotating frame (40) through the air outlet (420) of the rotating frame (40).

6. The range hood according to any one of claims 2 to 5, characterized in that: It also includes a driving member for driving the smoke baffle plate (20) to deflect forward and backward relative to the machine body (10).

7. The range hood according to claim 6, characterized in that: The driving member is an electric push rod (50), which has a telescopic rod (51) capable of linear telescopic expansion and contraction. The main body of the electric push rod (50) is rotatably connected to the rear side wall (12) of the machine body (10), and the end of the telescopic rod (51) is rotatably connected to the smoke baffle (20).

8. The range hood according to claim 7, characterized in that: A second clearance opening (112) for the telescopic rod (51) to pass through is provided on the front panel (11) of the machine body (10).

9. The range hood according to any one of claims 1 to 5, characterized in that: The rotating rack (40) has two parts arranged in sequence along the left-right direction, and the hollow chamber (31) and the auxiliary air suction port (32) also have two parts correspondingly.

10. The range hood according to any one of claims 2 to 5, characterized in that: When the smoke baffle (20) is in a closed state, the smoke baffle (20) covers the entire front panel (11) of the machine body (10).

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