Range hood

Abstract

A range hood comprises a shell, one side, facing a user, of the shell is taken as the front side, and the shell is provided with a downward first wall surface; the front side part of the first wall surface inclines upwards from front to back and is provided with a first smoke inlet penetrating through the wall thickness; the rear side part of the first wall face inclines downwards from front to back, a smoke inlet cavity with a downward opening is formed between the rear side part of the first wall face and the front side part of the first wall face, and a second smoke inlet penetrating through the wall thickness is formed in the rear side part of the first wall face. Compared with the prior art, the range hood has the advantages that the smoke inlet cavity formed between the inclined front side part and the inclined rear side part can improve the smoke gathering effect and reduce the risk of lampblack escape, and lampblack entering the smoke inlet cavity can be sucked into the shell through the first smoke inlet and the second smoke inlet, so that the lampblack suction effect is improved.

Description

Technical Field

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

[0002] Usually, range hoods include top-suction range hoods and side-suction range hoods. Top-suction range hoods use the principle of rising hot air to absorb the naturally rising oil smoke generated during cooking. They have the advantage of being suspended at a high height, which does not affect the tilting of the pot during cooking. However, due to the high hanging height, the oil smoke absorption effect is affected. Side-suction range hoods use the principle of vortex wind pressure to absorb most of the oil smoke close to the stove in the form of an arc. However, due to the fast rising speed of the oil smoke, some of the oil smoke escapes. In addition, since the side-suction range hood is too close to the stove, it affects the tilting of the pot.

[0003] To this end, there is now a range hood that combines the top suction type and the side suction type, such as the Chinese invention patent application "A top suction, side suction mixed range hood" with application number 201610588598.X (application publication number CN106051870A), which includes a vertical smoke hood, a transverse smoke hood, and a box body arranged above the transverse smoke hood, the transverse smoke hood is arranged on the top of the vertical smoke hood, the top of the vertical smoke hood is connected to the box body, a side suction air inlet is formed on the front side of the bottom of the vertical smoke hood, a top suction air inlet connected to the box body is opened on the top of the transverse smoke hood, and a telescopic mechanism that can slide in the front and rear directions to close or open the top suction air inlet is arranged in the transverse smoke hood and below the top suction air inlet.

[0004] The above patent application realizes all-round air intake with side suction as the main air intake and top suction as the auxiliary air intake through the telescopic movement of the telescopic mechanism, thereby ensuring the oil fume absorption effect. However, when the telescopic mechanism is extended forward, it is close to the user and it is easy to hit the head, affecting the user experience. When the telescopic mechanism is retracted backward, the oil fume absorption effect is affected. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a range hood which can improve the oil fume extraction effect and ensure the user experience 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 housing, wherein the side of the housing facing the user is referred to as a front side, and the housing has a first wall facing downward;

[0008] Features:

[0009] The front side portion of the first wall surface is inclined upward from front to back and is provided with a first smoke inlet penetrating through the wall thickness;

[0010] The rear part of the first wall surface is inclined downward from front to back, and forms a smoke inlet cavity with the front part opening downward. The rear part of the first wall surface is provided with a second smoke inlet port penetrating through the wall thickness.

[0011] In this way, the smoke inlet chamber formed between the inclined front part and the rear part can improve the smoke collection effect and reduce the risk of oil smoke escape, and the inclined front part and the rear part can guide the oil smoke airflow, so that the oil smoke airflow can enter the smoke inlet chamber more smoothly, and the oil smoke entering the smoke inlet chamber can be sucked into the shell through the first smoke inlet port and the second smoke inlet port, thereby improving the oil fume absorption effect; and compared with the prior art, the design of the inclined front part and the rear part of the utility model makes it possible to effectively collect smoke even when the width of the first wall in the front-to-back direction is not extended in the utility model, thereby ensuring the user experience.

[0012] Of course, the width of the first wall in the front-to-back direction of the present invention can be designed according to actual needs.

[0013] Preferably, the first wall surface further has a central portion, located between the front portion and the rear portion, and a lighting lamp capable of emitting light downward is disposed on the central portion. The illumination range of the lighting lamp can cover the cooking area, and the light will not enter the eyes, thereby improving the cooking experience. In addition, the front portion and the rear portion can be directly connected, that is, there is no central portion.

[0014] Preferably, the central part of the first wall surface is inclined downward from front to back, and the front edge of the central part is connected to the rear edge of the front part, and the rear edge of the central part is connected to the front edge of the rear part, and the central part and the rear part are arranged at an obtuse angle. In the utility model, the central part can also play the role of smoke diversion, so that part of the oil smoke entering the smoke inlet cavity can enter the corresponding smoke inlet along the central part.

[0015] Preferably, a window is provided in the central portion of the first wall surface, the illuminating lamp is arranged in the window, and the light emitting surface of the illuminating lamp is flush with the central portion.

[0016] In the above scheme, preferably, it also includes:

[0017] A first smoke baffle, disposed at the first smoke inlet;

[0018] A second smoke baffle, disposed at the second smoke inlet;

[0019] The driving mechanism has an output end acting on the first smoke baffle plate and the second smoke baffle plate to drive the first smoke baffle plate and the second smoke baffle plate to move and open and close the corresponding smoke inlet.

[0020] Preferably, the first smoke baffle is arranged to be movable back and forth relative to the front portion of the first wall surface, and has an open state in which it is located below the front portion to open the first smoke inlet, and a closed state in which it is located inside the first smoke inlet to close the first smoke inlet;

[0021] The second smoke baffle is arranged to be movable back and forth relative to the rear portion of the first wall, and has an open state in which it is located below the rear portion to open the second smoke inlet, and a closed state in which it is located inside the second smoke inlet to close the second smoke inlet. Thus, in the open state, the air intake form of the range hood is double-circular all-round air intake.

[0022] Preferably, in the open state, the upper surface of the first smoke baffle is parallel to the front portion of the first wall; the upper surface of the second smoke baffle is parallel to the rear portion of the first wall.

[0023] Furthermore, the driving mechanism includes a power member and a transmission assembly capable of transmitting the output power of the power member to the first smoke shield and the second smoke shield, so as to drive the first smoke shield and the second smoke shield to move to a closed state or an open state at the same time. That is, one power member is used to drive the two smoke shields to move at the same time. In addition, the driving mechanism can also be two power members, driving the corresponding smoke shields to move.

[0024] Preferably, the power member is a motor, the rotating shaft of the motor is arranged vertically, and the transmission assembly includes:

[0025] A lead screw coaxially connected to the rotating shaft of the motor;

[0026] A nut sleeve is sleeved on the outer periphery of the screw rod and is threadably connected to the screw rod;

[0027] A first upper connecting rod and a second upper connecting rod are arranged at the front and rear sides of the nut sleeve, and the upper end of the first upper connecting rod is connected to the nut sleeve in a manner that it can rotate around a first axis extending left and right, and the upper end of the second upper connecting rod is connected to the nut sleeve in a manner that it can rotate around the first axis;

[0028] A first lower connecting rod and a second lower connecting rod, the upper end of the first lower connecting rod is rotatably connected to the lower end of the first upper connecting rod and the rotation axis extends left and right, the lower end of the first lower connecting rod is rotatably connected to the first smoke baffle and the rotation axis extends left and right, the upper end of the second lower connecting rod is rotatably connected to the lower end of the second upper connecting rod and the rotation axis extends left and right, and the lower end of the second lower connecting rod is rotatably connected to the second smoke baffle and the rotation axis extends left and right;

[0029] At the same time, the shell is provided with a first restraint member for limiting the moving path of the first smoke baffle so that the first smoke baffle can only move in a direction perpendicular to the front side portion of the first wall, and a second restraint member for limiting the moving path of the second smoke baffle so that the second smoke baffle can only move in a direction perpendicular to the rear side portion of the first wall.

[0030] Preferably, the first restraining member comprises a first rod body perpendicular to the front side portion of the first wall surface, the first rod body is provided with a first strip hole extending longitudinally, and the first smoke shield plate is provided with a first plug-in portion which can be inserted into the first strip hole;

[0031] The second restraining member includes a second rod body perpendicular to the rear side portion of the first wall surface, the second rod body is provided with a second strip hole extending longitudinally, and the second smoke baffle is provided with a second plug-in portion that can be inserted into the second strip hole.

[0032] Compared with the prior art, the advantages of the utility model are: the smoke inlet chamber formed between the inclined front part and the rear part can improve the smoke collection effect and reduce the risk of oil smoke escape, and the inclined front part and the rear part can guide the oil smoke airflow, so that the oil smoke airflow can enter the smoke inlet chamber more smoothly, and the oil smoke entering the smoke inlet chamber can be sucked into the shell through the first smoke inlet port and the second smoke inlet port, thereby improving the oil fume extraction effect; and compared with the prior art, the design of the inclined front part and the rear part of the utility model makes it possible to effectively collect smoke even when the width of the first wall in the front-to-back direction is not extended in the utility model, thereby ensuring the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model (each smoke baffle is in a closed state);

[0034] Figure 2 It is a cross-sectional view of the local structure of an embodiment of the utility model (each smoke baffle is in a closed state);

[0035] Figure 3 This is a schematic diagram of the structure of an embodiment of the utility model (all smoke baffles are in an open state);

[0036] Figure 4 It is a schematic diagram of the local structure of an embodiment of the utility model from another perspective (all smoke baffles are in the open state). DETAILED DESCRIPTION

[0037] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0038] like Figures 1 to 4As shown, a preferred embodiment of a range hood of the utility model is shown, and the range hood comprises a housing 1, a lighting lamp 2, a first smoke baffle 3, a second smoke baffle 4 and a driving mechanism 5.

[0039] The side of the shell 1 facing the user is the front side, and the shell 1 has a first wall 10 facing downward, and the first wall 10 has a central part 1c and a front part 1a and a rear part 1b located at the front and rear sides of the central part 1c. The front part 1a is inclined upward from front to back, and is provided with a first smoke inlet 11 that penetrates the wall thickness. The rear part 1b is inclined downward from front to back, and is provided with a second smoke inlet 12 that penetrates the wall thickness. The central part 1c is inclined downward from front to back, and is arranged at an obtuse angle with the rear part 1b, and the front edge of the central part 1c is connected to the rear edge of the front part 1a, and the rear edge of the central part 1c is connected to the front edge of the rear part 1b, and a smoke inlet cavity 100 with an opening facing downward is formed between the central part 1c, the front part 1a and the rear part 1b.

[0040] At the same time, a window 13 is provided in the central portion 1c of the first wall 10. The above-mentioned lighting lamp 2 is an LED lamp extending left and right. The lighting lamp 2 is arranged in the window 13, and the light emitting surface 21 of the lighting lamp 2 is flush with the central portion 1c, so that light can be emitted downward.

[0041] The first smoke baffle 3 is arranged at the first smoke inlet 11, and can move back and forth relative to the front side portion 1a of the first wall 10, and has an open state of being located below the front side portion 1a to open the first smoke inlet 11 and a closed state of being located inside the first smoke inlet 11 to close the first smoke inlet 11, and in the open state, the upper surface of the first smoke baffle 3 is parallel to the front side portion 1a of the first wall 10. The second smoke baffle 4 is arranged at the second smoke inlet 12, and can move back and forth relative to the rear side portion 1b of the first wall 10, and has an open state of being located below the rear side portion 1b to open the second smoke inlet 12 and a closed state of being located inside the second smoke inlet 12 to close the second smoke inlet 12, and in the open state, the upper surface of the second smoke baffle 4 is parallel to the rear side portion 1b of the first wall 10. The output end of the driving mechanism 5 acts on the first smoke baffle 3 and the second smoke baffle 4 to drive the first smoke baffle 3 and the second smoke baffle 4 to move and open and close the corresponding smoke inlet.

[0042] Specifically, the driving mechanism 5 includes a power member 51 and a transmission assembly capable of transmitting the output power of the power member 51 to the first smoke baffle 3 and the second smoke baffle 4, so as to drive the first smoke baffle 3 and the second smoke baffle 4 to move to a closed state or an open state at the same time. The power member 51 is a motor, and the rotating shaft of the motor is arranged vertically. The transmission assembly includes: a screw rod 52 coaxially connected to the rotating shaft of the motor, a nut sleeve 53 sleeved on the outer periphery of the screw rod 52 and threadedly connected to the screw rod 52, and a first upper connecting rod 54, a second upper connecting rod 55, a first lower connecting rod 56 and a second lower connecting rod 57. The first upper connecting rod 54 and the second upper connecting rod 55 are respectively arranged on the front and rear sides of the nut sleeve 53, and the upper end of the first upper connecting rod 54 is connected to the nut sleeve 53 in a manner that it can rotate around a first axis extending left and right, and the upper end of the second upper connecting rod 55 is connected to the nut sleeve 53 in a manner that it can rotate around the first axis; the upper end of the first lower connecting rod 56 is rotatably connected to the lower end of the first upper connecting rod 54 and the rotation axis extends left and right, the lower end of the first lower connecting rod 56 is rotatably connected to the first smoke baffle 3 and the rotation axis extends left and right, the upper end of the second lower connecting rod 57 is rotatably connected to the lower end of the second upper connecting rod 55 and the rotation axis extends left and right, and the lower end of the second lower connecting rod 57 is rotatably connected to the second smoke baffle 4 and the rotation axis extends left and right; at the same time, a device for limiting the movement path of the first smoke baffle 3 is provided in the shell 1. A first restraint member is provided in the shell 1 so that the first smoke baffle 3 can only move in a direction perpendicular to the front side portion 1a of the first wall 10, and the first restraint member includes a first rod body 14 perpendicular to the front side portion 1a of the first wall 10, and the first rod body 14 is provided with a first strip hole extending longitudinally, and the first smoke baffle 3 is provided with a first plug-in portion that can be inserted into the first strip hole; a second restraint member is also provided in the shell 1 for limiting the movement path of the second smoke baffle 4 so that the second smoke baffle 4 can only move in a direction perpendicular to the rear side portion 1b of the first wall 10, and the second restraint member includes a second rod body 15 perpendicular to the rear side portion 1b of the first wall 10, and the second rod body 15 is provided with a second strip hole extending longitudinally, and the second smoke baffle 4 is provided with a second plug-in portion that can be inserted into the second strip hole.

[0043] When the range hood is turned on, the power part 51 rotates forward, the nut sleeve 53 moves downward along the screw rod 52, and the connecting rod mechanism hinged on the nut sleeve 53 drives the first smoke baffle 3 and the second smoke baffle 4 to move downward along the first rod body 14 and the second rod body 15 respectively to the open state. When the cooker is cooking, the oil smoke evaporates upward and first flows along the main smoke collecting area formed by the first smoke baffle 3, the second smoke baffle 4 and the central part 1c (see the main smoke collecting area). Figure 4 The oil smoke that escapes in all directions flows along the other three sides of the two smoke baffles and mainly from the auxiliary smoke collecting area (see the auxiliary smoke collecting area). Figure 4 The oil smoke enters the range hood through the area B defined by the midpoint line. At this point, the oil smoke is completely surrounded and sucked into the range hood.

[0044] When the range hood is turned off, the power part 51 is reversed, the nut sleeve 53 moves upward along the screw rod 52, and the connecting rod mechanism hinged on the nut sleeve 53 drives the first smoke baffle 3 and the second smoke baffle 4 to move upward along their corresponding first rod body 14 and second rod body 15 to a closed state.

[0045] 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.

Claims

1. A range hood, comprising: A housing (1), wherein the side of the housing (1) facing the user is referred to as the front side, and the housing (1) has a first wall surface (10) facing downward; Features: The front side portion (1a) of the first wall surface (10) is inclined upward from front to back and is provided with a first smoke inlet (11) penetrating through the wall thickness; The rear side portion (1b) of the first wall surface (10) is inclined downward from front to back and forms a smoke inlet cavity (100) with an opening facing downward with the front side portion (1a). The rear side portion (1b) of the first wall surface (10) is provided with a second smoke inlet port (12) penetrating the wall thickness.

2. The range hood according to claim 1, characterized in that: The first wall surface (10) also has a central portion (1c) located between the front portion (1a) and the rear portion (1b), and a lighting lamp (2) capable of emitting light downwards is provided on the central portion (1c).

3. The range hood according to claim 2, characterized in that: The central portion (1c) of the first wall surface (10) is inclined downward from front to back, and the front edge of the central portion (1c) is connected to the rear edge of the front portion (1a), and the rear edge of the central portion (1c) is connected to the front edge of the rear portion (1b), and the central portion (1c) and the rear portion (1b) are arranged at an obtuse angle.

4. The range hood according to claim 2, characterized in that: A window (13) is provided in the central portion (1c) of the first wall surface (10), the illuminating lamp (2) is arranged in the window (13), and the light emitting surface (21) of the illuminating lamp (2) is flush with the central portion (1c).

5. The range hood according to claim 1, characterized in that: Also included are: A first smoke baffle (3) disposed at the first smoke inlet (11); A second smoke baffle (4) is arranged at the second smoke inlet (12); The drive mechanism (5) has an output end that acts on the first smoke baffle (3) and the second smoke baffle (4) to drive the first smoke baffle (3) and the second smoke baffle (4) to move and open and close the corresponding smoke inlet.

6. The range hood according to claim 5, characterized in that: The first smoke baffle (3) is arranged to be movable back and forth relative to the front side portion (1a) of the first wall surface (10), and has an open state in which it is located below the front side portion (1a) and opens the first smoke inlet (11), and a closed state in which it is located inside the first smoke inlet (11) and closes the first smoke inlet (11); The second smoke baffle (4) is arranged to be movable back and forth relative to the rear portion (1b) of the first wall surface (10), and has an open state in which it is located below the rear portion (1b) and opens the second smoke inlet (12), and a closed state in which it is located inside the second smoke inlet (12) and closes the second smoke inlet (12).

7. The range hood according to claim 6, characterized in that: In the open state, the upper surface of the first smoke baffle (3) is parallel to the front side portion (1a) of the first wall surface (10); and the upper surface of the second smoke baffle (4) is parallel to the rear side portion (1b) of the first wall surface (10).

8. The range hood according to claim 6, characterized in that: The driving mechanism (5) comprises a power member (51) and a transmission assembly capable of transmitting output power of the power member (51) to the first smoke baffle (3) and the second smoke baffle (4), so as to drive the first smoke baffle (3) and the second smoke baffle (4) to move simultaneously to a closed state or an open state.

9. The range hood according to claim 8, characterized in that: The power member (51) is a motor, the rotating shaft of the motor is arranged vertically, and the transmission assembly includes: A screw rod (52) coaxially connected to the rotating shaft of the motor; A nut sleeve (53) sleeved on the outer periphery of the screw rod (52) and threadedly connected to the screw rod (52); A first upper connecting rod (54) and a second upper connecting rod (55) are arranged at the front and rear sides of the nut sleeve (53), and the upper end of the first upper connecting rod (54) is connected to the nut sleeve (53) in a manner that it can rotate around a first axis extending left and right, and the upper end of the second upper connecting rod (55) is connected to the nut sleeve (53) in a manner that it can rotate around the first axis; A first lower connecting rod (56) and a second lower connecting rod (57), wherein the upper end of the first lower connecting rod (56) is rotatably connected to the lower end of the first upper connecting rod (54) and the rotation axis extends leftward and rightward, the lower end of the first lower connecting rod (56) is rotatably connected to the first smoke baffle (3) and the rotation axis extends leftward and rightward, the upper end of the second lower connecting rod (57) is rotatably connected to the lower end of the second upper connecting rod (55) and the rotation axis extends leftward and rightward, and the lower end of the second lower connecting rod (57) is rotatably connected to the second smoke baffle (4) and the rotation axis extends leftward and rightward; At the same time, the housing (1) is provided with a first restraining member for limiting the moving path of the first smoke baffle (3) so that the first smoke baffle (3) can only move in a direction perpendicular to the front side portion (1a) of the first wall surface (10), and a second restraining member for limiting the moving path of the second smoke baffle (4) so ​​that the second smoke baffle (4) can only move in a direction perpendicular to the rear side portion (1b) of the first wall surface (10).

10. The range hood according to claim 9, characterized in that: The first restraining member comprises a first rod body (14) perpendicular to the front side portion (1a) of the first wall surface (10), the first rod body (14) is provided with a first strip hole extending longitudinally, and the first smoke baffle (3) is provided with a first plug-in portion capable of being inserted into the first strip hole; The second restraining member comprises a second rod body (15) perpendicular to the rear side portion (1b) of the first wall surface (10), the second rod body (15) is provided with a second strip hole extending longitudinally, and the second smoke baffle (4) is provided with a second plug-in portion capable of being inserted into the second strip hole.

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