Range hood

Abstract

A range hood comprises an outer box body and a fan frame, and further comprises a lifting body capable of doing lifting motion relative to the fan frame, the lifting body is provided with an oil smoke suction inlet, a smoke baffle is installed at the bottom of the outer box body, a driving mechanism is installed on the outer box body, and the driving output end of the driving mechanism is connected with the smoke baffle through a first rotating mechanism. The smoke barrier is further connected with the lifting body through a second rotating mechanism, and under driving of the driving mechanism, the smoke barrier drives the lifting body to move downwards in the opening process and drives the lifting body to move upwards in the closing process. The driving mechanism of the range hood drives the smoke baffle to turn over through the first rotating mechanism, in the turning-over process of the smoke baffle, the second rotating mechanism drives the lifting body to ascend and descend synchronously, in the opening process of the smoke baffle, the lifting body is driven to move downwards, the oil smoke suction inlet descends, and the oil smoke suction effect is improved; and the smoke baffle drives the lifting body to move upwards in the closing process, and the lifting body is hidden in the outer box body, so that the structure of the range hood is simpler.

Description

Technical Field

[0001] The utility model relates to a kitchen household appliance, in particular to a range hood. Background Art

[0002] Chinese cooking produces a lot of oil smoke. To keep the kitchen environment clean and the human body healthy, the range hood has become one of the essential appliances in modern family kitchens. The height of the negative pressure zone of the range hood directly affects the oil smoke extraction effect. If the distance between the air inlet of the range hood and the oil smoke generating area is large, the oil smoke inhalation path is long, and the inhalation time increases, making it easy for oil smoke to escape during cooking. If the installation height of the range hood is lowered, although it is beneficial to improve the oil smoke extraction effect, it will cause the cooking space to be too small, and the cook's head is easy to accidentally touch the smoke hood. In addition, after the installation height is lowered, it also affects the line of sight and the overall appearance of the kitchen. For this purpose, people have invented a lifting range hood, such as the "A Lifting Range Hood" disclosed in the Chinese utility model patent with patent number 201320075819.5 (authorization announcement number CN203215771U). The lifting range hood is provided with a flat ultra-thin suction hood at the bottom of the range hood body, the front of the suction hood has a main suction port, and a lifting mechanism for driving the suction hood to move up and down is also provided in the body. When in use, the suction hood is lowered to absorb oil fumes, and when not in use, the suction hood is raised to be hidden in the range hood body.

[0003] At present, most of the lift-type range hoods on the market adopt a single motion form of flipping the smoke baffle or moving the smoke collecting chamber up and down. The flipping of the smoke baffle and the lifting of the smoke collecting chamber are driven by independent driving mechanisms. On the one hand, the cost is high. On the other hand, the increase in the number of lifting mechanisms will inevitably occupy too much internal space of the range hood, and it is also easy to cause motion interference with other components inside the range hood, which is not conducive to the reasonable spatial arrangement of other components inside the range hood. In summary, the existing lift-type range hood needs to be further improved. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a range hood with a smoke baffle that can be linked with the smoke collecting chamber and has a simple driving structure in view of the above-mentioned existing technical status.

[0005] The technical solution adopted by the utility model to solve the above-mentioned technical problems is: a range hood, comprising an outer box body and a fan frame arranged inside the outer box body, and also comprising a lifting body that can perform lifting and lowering movements relative to the fan frame, the lifting body having an oil fume suction port, and a smoke baffle installed at the bottom of the outer box body, characterized in that: a driving mechanism is installed on the outer box body, the driving output end of the driving mechanism is connected to the smoke baffle through a first rotating mechanism, and the smoke baffle is also connected to the lifting body through a second rotating mechanism, and under the drive of the driving mechanism, the smoke baffle drives the lifting body to move downward during the opening process, and drives the smoke baffle to move upward during the closing process.

[0006] The driving mechanism can be installed in a plurality of different positions. Preferably, a fixing plate is installed at the front bottom of the outer box body, the fixing plate is arranged at the front side of the smoke baffle, and the driving mechanism is installed on the fixing plate.

[0007] In order to enable the driving mechanism to drive the smoke shield to flip, the driving mechanism includes a driving motor, the first rotating mechanism includes a connecting rod and a first hinge, the first end of the connecting rod is rotatably connected to the output shaft of the driving motor, the second end of the connecting rod is rotatably connected to one end of the first hinge, and the second end of the first hinge is rotatably connected to the smoke shield.

[0008] Further preferably, a smoke shield bracket is installed on the back of the smoke shield, and the second end of the first hinge is rotatably connected to the smoke shield bracket.

[0009] In order to enable the smoke shield to rotate relative to the fixed plate, a decorative shaft bracket is installed on the fixed plate, and a decorative shaft is installed on the front side of the smoke shield. The decorative shaft is rotatably connected to the decorative shaft bracket through a rotating shaft.

[0010] The second rotating mechanism may have various structures. Preferably, the second rotating mechanism includes a second hinge, a first end of the second hinge is rotatably connected to the lifting body, and a second end of the second hinge is rotatably connected to the back of the smoke shield.

[0011] Further preferably, a hinge bracket is fixed on the lifting body and moves synchronously with the lifting body, and the first end of the second hinge is rotatably connected to the hinge bracket.

[0012] Further preferably, the lifting body includes a connecting frame and a smoke inlet chamber arranged at the bottom of the connecting frame, a space for accommodating the connecting frame is provided between the outer box body and the fan frame, the oil fume suction port is provided on the smoke inlet chamber, and there are two hinge brackets which are respectively installed on the left and right sides of the smoke inlet chamber.

[0013] Further preferably, when the lifting body is raised, the smoke shield is flipped upward to a horizontal position, and the smoke shield is arranged on the front side of the fixed plate and is flush with the fixed plate. In this way, when the lifting body is raised, the bottom of the range hood maintains a flat horizontal surface and can be flush with the cabinet, and the structure is more concise.

[0014] As a preferred embodiment of any of the above solutions, a fan system is installed inside the fan rack.

[0015] Compared with the existing design, the advantages of the utility model are: the range hood is equipped with a driving mechanism on the outer box body, the driving mechanism drives the smoke baffle to flip through the first rotating mechanism, during the flipping process of the smoke baffle, the lifting body is driven to rise and fall synchronously through the second rotating mechanism, when the machine is turned on, the smoke baffle drives the lifting body to move downward during the opening process, the oil fume suction port descends, and the oil fume suction effect is improved, the smoke baffle drives the lifting body to move upward during the closing process, and the lifting body is hidden inside the outer box body, so that the range hood structure is simpler and the overall appearance is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the range hood according to an embodiment of the utility model (in shutdown state);

[0017] Figure 2 for Figure 1 The internal structure diagram of the range hood shown;

[0018] Figure 3 for Figure 2 A magnified schematic diagram of part A;

[0019] Figure 4 This is a schematic diagram of the structure of the lifting body of an embodiment of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the range hood according to an embodiment of the utility model (in the powered-on state);

[0021] Figure 6 for Figure 5 The internal structure diagram of the range hood shown;

[0022] Figure 7 for Figure 6 Schematic diagram of the enlarged portion B. DETAILED DESCRIPTION

[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0024] like Figures 1 to 7As shown, the range hood of this embodiment includes main components such as an outer box body 1, a fan frame 2, a lifting body 3, a smoke baffle 4, a fixing plate 5, a driving motor 6, a connecting rod 71, a first hinge 72, a rotating shaft 8, a second hinge 9 and a hinge bracket 10.

[0025] The fan frame 2 is installed inside the outer box 1, and a fan system (not shown) is installed inside the fan frame 2. The lifting body 3 can move up and down relative to the fan frame 2, and the smoke shield 4 can move over relative to the outer box 1. Driven by the driving motor 6, the smoke shield 4 drives the lifting body 3 to move downward during the opening process, and drives the lifting body 3 to move upward during the closing process.

[0026] In the present embodiment, a fixing plate 5 is installed at the bottom of the front side of the outer box body 1, and the fixing plate 5 is arranged at the front side of the smoke damper 4. The driving motor 6 constitutes a driving mechanism for driving the smoke damper 4 to flip, and the driving output end of the driving mechanism is connected to the smoke damper 4 through a first rotating mechanism. Specifically, the driving motor 6 has one and is installed on the fixing plate 5. The first rotating mechanism includes a connecting rod 71 and a first hinge 72. The first end of the connecting rod 71 is rotatably connected to the output shaft of the driving motor 6, and the second end of the connecting rod 71 is rotatably connected to one end of the first hinge 72. A smoke damper bracket 41 is installed on the back of the smoke damper 4, and the second end of the first hinge 72 is rotatably connected to the smoke damper bracket 41, that is, the second end of the first hinge 72 is rotatably connected to the smoke damper 4. The driving motor 6 preferably adopts a reduction motor, and under the drive of the driving motor 6, the smoke damper 4 is driven to flip through the first connecting rod and the first hinge 72. In addition, in order to make the smoke damper 4 rotate relative to the fixing plate 5, such as Figure 7 As shown, a decorative shaft bracket 51 is installed on the fixing plate 5 , and a decorative shaft 42 is installed on the front side of the smoke baffle 4 . The decorative shaft 42 is rotatably connected to the decorative shaft bracket 51 through a rotating shaft 8 .

[0027] The second hinge 9 of this embodiment constitutes a second rotating mechanism, a hinge bracket 10 is fixed on the lifting body 3 and moves synchronously with the lifting body 3, a first end of the second hinge 9 is rotatably connected to the hinge bracket 10, and a second end of the second hinge 9 is rotatably connected to the back of the smoke shield 4. During the flipping process of the smoke shield 4, the lifting body 3 is driven by the second hinge 9 to perform synchronous lifting and lowering movements.

[0028] like Figure 4 As shown, the lifting body 3 of this embodiment includes a connecting frame 31 and a smoke inlet chamber 32 arranged at the bottom of the connecting frame 31. A space for accommodating the connecting frame 31 is provided between the outer box body 1 and the fan frame 2, the oil smoke suction port 30 is provided on the smoke inlet chamber 32, and there are two hinge brackets 10 which are respectively installed on the left and right sides of the smoke inlet chamber 32.

[0029] like Figures 1 to 3As shown, the range hood is in the off state. At this time, the smoke baffle 4 flips upward to a horizontal position, and the smoke baffle 4 is arranged on the front side of the fixed plate 5 and is flush with the fixed plate 5. When the range hood is turned on, the drive motor 6 is powered on, and the smoke baffle 4 is driven to flip downward through the connecting rod 71 and the first hinge 72. The decorative shaft 42 on the smoke baffle 4 plays an auxiliary role in rotation, and together realizes the rotation of the smoke baffle 4. During the downward flipping process of the smoke baffle 4, the lifting body 3 is driven to move downward through the second hinge 9. The lifting body 3 is exposed below the outer box body 1, the oil smoke suction port 30 descends, the negative pressure area of ​​the range hood descends, and the oil smoke suction effect is improved. Figures 5 to 7 As shown, when the lifting body 3 descends to the maximum stroke, the smoke baffle 5 opens to the maximum angle to expand the smoke collection area, thereby effectively ensuring the oil fume absorption effect.

Claims

1. A range hood, comprising an outer box (1) and a fan frame (2) arranged inside the outer box (1), and also comprising a lifting body (3) capable of lifting and lowering relative to the fan frame (2), wherein the lifting body (3) has a fume suction port (30), and a fume baffle (4) is installed at the bottom of the outer box (1), characterized in that: A driving mechanism is installed on the outer box body (1), and a driving output end of the driving mechanism is connected to the smoke shield (4) via a first rotating mechanism, and the smoke shield (4) is also connected to the lifting body (3) via a second rotating mechanism. Driven by the driving mechanism, the smoke shield (4) drives the lifting body (3) to move downward during the opening process, and drives the smoke shield (4) to move upward during the closing process.

2. The range hood according to claim 1, characterized in that: A fixing plate (5) is installed at the front bottom of the outer box body (1), the fixing plate (5) is arranged on the front side of the smoke baffle (4), and the driving mechanism is installed on the fixing plate (5).

3. The range hood according to claim 2, characterized in that: The driving mechanism comprises a driving motor (6), and the first rotating mechanism comprises a connecting rod (71) and a first hinge (72), wherein the first end of the connecting rod (71) is rotatably connected to the output shaft of the driving motor (6), the second end of the connecting rod (71) is rotatably connected to one end of the first hinge (72), and the second end of the first hinge (72) is rotatably connected to the smoke baffle (4).

4. The range hood according to claim 3, characterized in that: A smoke shield bracket (41) is installed on the back of the smoke shield (4), and the second end of the first hinge (72) is rotatably connected to the smoke shield bracket (41).

5. The range hood according to claim 2, characterized in that: A decorative shaft bracket (51) is installed on the fixing plate (5), a decorative shaft (42) is installed on the front side of the smoke shield (4), and the decorative shaft (42) is rotatably connected to the decorative shaft bracket (51) via a rotating shaft (8).

6. The range hood according to claim 2, characterized in that: The second rotating mechanism comprises a second hinge (9), a first end of the second hinge (9) being rotatably connected to the lifting body (3), and a second end of the second hinge (9) being rotatably connected to the back of the smoke shield (4).

7. The range hood according to claim 6, characterized in that: A hinge bracket (10) is fixed on the lifting body (3) and moves in synchronization with the lifting body (3). The first end of the second hinge (9) is rotatably connected to the hinge bracket (10).

8. The range hood according to claim 7, characterized in that: The lifting body (3) comprises a connecting frame (31) and a smoke inlet chamber (32) arranged at the bottom of the connecting frame (31); a space for accommodating the connecting frame (31) is provided between the outer box body (1) and the fan frame (2); the oil smoke suction port (30) is provided on the smoke inlet chamber (32); and the hinge brackets (10) are provided in two portions and are respectively installed on the left and right sides of the smoke inlet chamber (32).

9. The range hood according to claim 2, characterized in that: When the lifting body (3) is in the raised state, the smoke baffle (4) flips upward to a horizontal position, and the smoke baffle (4) is arranged on the front side of the fixing plate (5) and is flush with the fixing plate (5).

10. The range hood according to any one of claims 1 to 9, characterized in that: A fan system is installed inside the fan frame (2).

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