Side-suction range hood

Abstract

The present invention relates to a side-suction range hood, which comprises a housing having an air inlet in the upper region of the front side; a smoke baffle disposed at a position of the housing corresponding to the air inlet; a sliding member located behind the smoke baffle and rotatably connected to a position near the upper part of the back surface of the smoke baffle through a horizontally extending mounting shaft, and constrained on the housing to be movable up and down along the plane where the air inlet is located to drive the smoke baffle to move up and down; a driving mechanism mounted on the sliding member and having an output shaft extending in the left-right direction; a rotating wheel fixedly sleeved on the output shaft and rotating around the axis of the output shaft under the drive of the driving mechanism; a transmission member located behind the smoke baffle and extending along the movement direction of the sliding member and capable of contacting the rotating wheel; and a transmission mechanism for driving the smoke baffle to rotate back and forth relative to the housing. It will not interfere with the cabinet, reduce the amount of oil fume flowing out through the gap to reduce the cleaning difficulty of the wall cabinet, and improve the oil fume suction ability.

Description

Technical Field

[0001] The present invention belongs to the technical field of range hoods, and particularly relates to a side - suction range hood. Background Art

[0002] Range hoods have become one of the indispensable kitchen appliances in modern families. Generally, range hoods include top - suction type and near - (side) suction type. The near - suction type range hood uses the principle of eddy current wind pressure to absorb most of the cooking fumes close to the cooking range in an arc form, which can reduce the adverse effects on human health.

[0003] At present, a near - suction type range hood such as the Chinese utility model patent "A Near - Suction Type Range Hood" with the patent number ZL201721290314.5 (the authorized announcement number is CN207539970U) discloses a near - suction type range hood, which includes a housing and a fan system. The housing includes a panel at the front end that is inclined with respect to the horizontal direction. An opening is formed on the panel to serve as the air inlet of the range hood. A smoke - blocking screen is arranged on the front side of the panel. The smoke - blocking screen is rotatably connected to the upper part of the panel, so that the smoke - blocking screen can rotate outward to open the air inlet of the range hood or rotate inward to close the air inlet of the range hood. After the smoke - blocking plate opens the air inlet, the top edge of the smoke - blocking plate is higher than the top of the cabinet body. Usually, a cabinet is installed on the top of the cabinet body. At this time, the top edge of the smoke - blocking plate is likely to interfere with the bottom of the cabinet or the door of the cabinet. Therefore, a certain gap is left between the top of the cabinet body and the bottom of the cabinet. The existence of the gap is likely to cause dust accumulation and is not easy to clean, thus bringing inconvenience and cleaning troubles to users.

[0004] Another example is the Chinese utility model patent "A Range Hood with Improved Air Inlet Efficiency" with the patent number ZL201920158911.5 (the authorized announcement number is CN209744458U), which discloses a range hood with improved air inlet efficiency, including a chassis, a panel assembly (smoke - blocking plate) and a driving device. The driving device is installed in the chassis and can drive the panel assembly to move to open or close the smoke - collecting cavity formed by the smoke - collecting hood. A hinge bracket is fixedly connected to the top plate of the chassis, and the hinge bracket is located below the top plate and on the back side of the smoke - collecting hood. A hinge is fixed to the upper end of the panel assembly, and the hinge is rotatably connected to the hinge bracket.

[0005] The top edge of the panel assembly of the above-mentioned patent is hinged to the front edge of the top of the chassis (cabinet or casing) through a hinge. After the panel assembly is opened, the top edge of the panel assembly is not higher than the top of the cabinet. However, due to the structural characteristics of the hinge structure itself, after the panel assembly is opened, a gap will appear at the position where the axis of the hinge is located, that is, a gap will appear between the top edge of the panel assembly and the chassis, and the oil fume will overflow from this gap. Since a cabinet is usually installed on the top of the chassis, when the range hood is working, on the one hand, the oil fume overflowing from this gap is likely to accumulate on the cabinet, increasing the difficulty of cleaning the cabinet; on the other hand, the oil fume hitting the cabinet will backflow to the air inlet, affecting the oil fume intake effect.

[0006] Therefore, it is necessary to further improve the existing side-suction range hood. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide a side-suction range hood that can effectively reduce the gap between the top edge of the smoke baffle and the cabinet while the top of the smoke baffle is not higher than the top of the cabinet after the air inlet is opened, in view of the current situation of the above-mentioned prior art.

[0008] The technical solution adopted by the present invention to solve the above technical problems is as follows: A side-suction range hood includes:

[0009] A casing, the upper region of the front side of which has an air inlet;

[0010] A smoke baffle, arranged at the position of the casing corresponding to the air inlet, and configured to be able to rotate forward relative to the casing to open the air inlet or rotate backward to close the air inlet. When the air inlet is in the closed state, the top edge of the smoke baffle is located below the top surface of the casing or flush with the top surface of the casing;

[0011] It is characterized in that it further includes:

[0012] A sliding member, which is located behind the smoke baffle, and is rotationally connected to a position near the upper part of the back surface of the smoke baffle through a horizontally extending mounting shaft, and is constrained on the casing to move up and down along the plane where the air inlet is located to drive the smoke baffle to move up and down;

[0013] A driving mechanism, installed on the sliding member, and having an output shaft extending in the left-right direction;

[0014] A rotating wheel, which is fixedly sleeved on the output shaft of the driving mechanism and rotates around the axis of its output shaft under the drive of the driving mechanism;

[0015] A transmission member, which is located behind the smoke baffle, extends along the movement direction of the sliding member, is relatively fixed on the casing, and can be in contact with the rotating wheel, and is used to make the rotating wheel and the sliding member move together along the length direction of the transmission member during the rotation of the rotating wheel; and

[0016] A transmission mechanism, which is used to drive the smoke baffle to rotate back and forth relative to the casing. Its power input end is drivingly connected to the output shaft of the driving mechanism, and its power output end is rotationally connected to the back surface of the smoke baffle through a connecting shaft extending along the left-right direction. The connecting shaft is located below the mounting shaft.

[0017] The rotating wheel can be in the form of a cam, and the transmission member can be in the form of a plate. When the cam rotates, it moves downward under the action of the transmission member. When the cam rotates in the opposite direction, it moves upward under the action of the transmission member. It can also be in the form of a gear. However, preferably, the rotating wheel is a gear, and the transmission member is a rack meshing with the gear.

[0018] There are various structural forms of the transmission mechanism. It can adopt the form of cooperation between a crank and a connecting rod, or it can adopt the form of realizing the rotation of the smoke baffle as in the patent numbers ZL201620433543.7 or ZL202010609847.5. However, preferably, the transmission mechanism includes a crank and a connecting rod. The first end of the connecting rod is rotationally connected to the smoke baffle through the connecting shaft, and a guiding groove extending along its length direction is provided at the second end of the connecting rod. The first end of the crank is installed on the output shaft of the driving mechanism, and a convex shaft capable of moving along the length direction of the guiding groove and capable of rotating relative to the connecting rod is provided at the second end of the crank. The rotation axis of the convex shaft is along the left-right direction.

[0019] In order to prevent interference during the rotation of the connecting rod, the crank is an arc-shaped rod with an opening facing forward.

[0020] The rack can be located above the gear or below the gear. However, to avoid interference with the crank, preferably, the rack is located below the gear.

[0021] In order to protect the driving mechanism, the gear, the rack, etc., the interior of the casing is hollow to form a cavity, and the driving mechanism, the gear, the rack and the sliding member are all located in the cavity.

[0022] In order to keep the left and right sides of the smoke baffle synchronized during rotation, there are two sets of the transmission mechanism, the sliding member, the rotating wheel and the transmission member, and they are arranged at intervals along the left-right direction. The left and right rotating wheels are coaxially arranged and are both installed on the output shaft of the driving mechanism.

[0023] The drive mechanism can adopt a dual-output shaft motor or a hollow shaft motor. However, preferably, the drive mechanism is a dual-output shaft motor.

[0024] A fixing strip that is fixed relative to the casing and gradually slopes backward from top to bottom behind the smoke baffle is provided. The sliding member is slidably constrained on the fixing strip along the length direction of the fixing strip.

[0025] To realize the installation of the fixing strip, the top of the fixing strip extends forward to form an installation strip, and the installation strip is arranged on the top plate of the casing.

[0026] To guide the sliding of the sliding member, the sliding member is a vertically arranged sliding plate that gradually slopes backward from top to bottom. A slot is formed at the rear of the sliding plate and extends along the length direction of the fixing strip for the fixing strip to be inserted therein.

[0027] The surface where the air inlet is located can adopt a vertically arranged form or an inclined arrangement form. However, in order to absorb most of the oil fumes that are relatively close to the cooking range in an arc form, the surface where the air inlet is located gradually slopes backward from top to bottom, and the extending direction of the fixing strip is the same as the inclined direction of the surface where the air inlet is located.

[0028] Compared with the prior art, the advantages of the present invention are as follows: When the air inlet of this side suction type range hood is in a closed state, the top edge of the smoke baffle is lower than or flush with the top of the casing. When the air inlet needs to be opened, the drive mechanism drives the smoke baffle to rotate forward through the transmission mechanism. Since the drive mechanism is installed on the sliding member that is rotatably connected to the smoke baffle, the rotating wheel is fixedly mounted on the output shaft of the drive mechanism, and the transmission member is fixed relative to the casing and contacts the rotating wheel. When the rotating wheel rotates together with the output shaft of the drive mechanism, it will move downward along the surface where the air inlet is located together with the sliding member relative to the transmission member. Then, while the smoke baffle rotates forward, it will move downward, that is, the top edge of the smoke baffle will not be higher than the top surface of the cabinet, and the gap (interval) between the top edge of the smoke baffle and the casing (cabinet) will decrease. Therefore, when the smoke baffle is opened, on the one hand, it will not interfere with the cabinet, the gap between the top of the casing and the cabinet can be reduced, and even there is no need to leave a gap between the top of the casing and the wall cabinet, thus avoiding cleaning the gap; on the other hand, it overcomes the defect of the increased interval caused by the hinge connection in the background art, reduces the amount of oil fumes flowing out through the interval, thereby reducing the cleaning difficulty of the wall cabinet. In addition, it also reduces the possibility of oil fume backflow and improves the oil fume absorption ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic structural diagram of the present embodiment when the air inlet is in an open state;

[0030] Figure 2 isFigure 1 Schematic enlarged structure diagram of part I

[0031] Figure 3 is Figure 1 Partial structure diagram of

[0032] Figure 4 is Figure 1 Schematic structure diagram of another angle of part of the structure in

[0033] Figure 5 is Figure 1 Cross-sectional view of part of the structure of

[0034] Figure 6 is Figure 1 Partial structure diagram of

[0035] Figure 7 Schematic structure diagram of the present embodiment with the air inlet in the closed state

[0036] Figure 8 is Figure 7 Cross-sectional view of part of the structure of

[0037] Figure 9 is Figure 7 Partial structure diagram of Detailed implementation manners

[0038] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0039] As Figures 1 to 9 shown, the side-suction range hood of the present embodiment includes a housing 1, a smoke baffle 2, a sliding member, a transmission member, a rotating wheel, a driving mechanism, and a transmission mechanism 5. Among them, the upper region of the front side of the housing 1 has an air inlet 101, and the interior of the housing 1 has a cavity 10 communicating with the air inlet 101. The front panel of the aforementioned housing 1 gradually slopes backward from top to bottom, and the upper region of the front panel has an air inlet 101, so the plane where the air inlet 101 is located gradually slopes backward from top to bottom. In addition, an inner panel 13 arranged side by side with the plane where the air inlet 101 is located is provided in the cavity 10, and a filter screen 131 is installed on the inner panel 13 at a position corresponding to the air inlet 101.

[0040] As Figure 1 , Figure 2 and Figure 4 shown, the smoke baffle 2 is arranged at the position of the housing 1 corresponding to the air inlet 101, and is arranged to be able to rotate forward relative to the housing 1 to open the air inlet 101 or rotate backward to close the air inlet 101. When the air inlet 101 is in the closed state, the top edge of the smoke baffle 2 is located below the top surface of the housing 1 or flush with the top surface of the housing 1. In the present embodiment, as Figure 1 andFigure 2 As shown, the top edge of the smoke baffle 2 is flush with the top surface of the housing 1.

[0041] As Figure 2 , Figure 8 and Figure 9 shown, the sliding member 3, the driving mechanism, the rotating wheel and the transmission member are all located behind the smoke baffle 2 and within the cavity 10. The housing 1 is relatively fixed with a fixed strip 12 located behind the smoke baffle 2 and gradually tilting backward from top to bottom. The top of the fixed strip 12 extends forward to form a mounting strip 121, and the mounting strip 121 is arranged on the top plate of the housing 1. In this embodiment, the sliding member 3 is a sliding plate arranged vertically and gradually tilting backward from top to bottom, and a slot 31 gradually tilting backward from top to bottom is formed at the rear of the sliding plate. The extending direction of the aforementioned fixed strip 12, the extending direction of the slot 31, and the tilting direction of the plane where the air inlet is located are the same. The fixed strip 12 is inserted into the slot 31. The above-mentioned sliding plate is slidably constrained on the fixed strip 12 along the length direction of the fixed strip, and the sliding plate is rotatably connected to the bracket 20 through a mounting shaft 21 extending left and right. Thus, when the sliding plate slides along the length direction of the fixed strip, it drives the smoke baffle 2 to move up and down. There are two mounting shafts 21 in this embodiment, and they are arranged at intervals along the left and right directions and are coaxially arranged.

[0042] As Figure 2 , Figure 8 and Figure 9 shown, the driving mechanism is a motor 4 mounted on the sliding plate. The motor 4 can be a double-output shaft motor or a hollow shaft motor. The output shaft of the motor 4 extends along the left and right directions. There are two sets of the rotating wheel, the transmission member, the sliding member, the fixed strip and the transmission mechanism in this embodiment, and they are arranged at intervals along the left and right directions. The left and right rotating wheels are coaxially arranged and are both mounted on the output shaft on the corresponding side of the driving mechanism. The structures of the two sets of rotating wheels, transmission members and transmission mechanisms are the same. The following takes one of the sets as an example for description. The rotating wheel is a gear 41 fixedly mounted on the output shaft of the motor 4 and rotates under the drive of the motor 4. The transmission member is a rack 11 fixedly mounted on the housing 1. The aforementioned rack 11 extends along the movement direction of the sliding member 3 and is located below the gear 41. Specifically, the rack 11 gradually tilts backward from top to bottom and meshes with the gear 41. Thus, when the motor 4 works, the gear 41 rotates. Since the gear 41 and the rack 11 mesh with each other, the gear 41, the rack 11 and the sliding plate will move together along the length direction of the fixed strip 12.

[0043] The transmission mechanism 5 of this embodiment is used to drive the smoke baffle 2 to rotate back and forth relative to the machine housing 1. The power input end of the transmission mechanism 5 is drivingly connected to the output shaft of the driving mechanism. The power output end of the transmission mechanism 5 is rotationally connected to the back surface of the smoke baffle 2 through a connecting shaft 22 extending along the left and right direction. The connecting shaft 22 is located below the mounting shaft 21. Each mounting shaft 21 corresponds to a connecting shaft 22, and the two connecting shafts 22 are arranged at intervals along the left and right direction and are coaxially arranged.

[0044] As Figure 2 , Figure 3 , Figures 5 to 9 shown, the transmission mechanism 5 includes a crank 51 and a connecting rod 52. The first end of the connecting rod 52 is rotationally connected to the smoke baffle 2 through the connecting shaft 22, and a guiding groove 521 extending along its length direction is formed at the second end of the connecting rod 52. The first end of the crank 51 is mounted on the output shaft of the driving mechanism, and a convex shaft 511 capable of moving along the length direction of the guiding groove 521 and capable of rotating relative to the connecting rod 52 is provided at the second end of the crank 51. The rotation axis of the convex shaft 511 is along the left and right direction. The crank 51 in this embodiment is an arc-shaped rod with an opening facing forward.

[0045] The working process of the above-mentioned smoke baffle is as follows:

[0046] When the air inlet needs to be opened, the motor 4 works to drive the gear 41 to rotate counterclockwise. Since the gear 41 meshes with the fixedly arranged rack 11, the sliding plate, the motor and the gear 41 will move downward along the length direction of the rack 11 together. At this time, the sliding plate drives the smoke baffle 2 to move downward; at the same time, the crank 51 rotates counterclockwise, which will drive the connecting rod 52 to move forward, and the connecting rod 52 pushes the smoke baffle to rotate forward to open the air inlet 101;

[0047] When the air inlet 101 needs to be closed, the motor 4 works to drive the gear 41 to rotate clockwise. Since the gear 41 meshes with the fixedly arranged rack 11, the sliding plate, the motor and the gear 41 will move upward along the length direction of the rack 11 together. At this time, the sliding plate drives the smoke baffle 2 to move upward; at the same time, the crank 51 rotates clockwise, which will drive the connecting rod 52 to move backward, and the connecting rod 52 pulls the smoke baffle 2 to rotate backward to close the air inlet 101.

[0048] When the air inlet 101 of the above-mentioned side-suction range hood is in the closed state, the top edge of the baffle 2 is lower than or flush with the top of the housing 1. When it is necessary to open the air inlet 101, the driving mechanism drives the baffle 2 to rotate forward through the transmission mechanism. Since the driving mechanism is installed on the sliding member 3 rotatably connected to the baffle 2, the gear 41 is fixedly sleeved on the output shaft of the driving mechanism, and the rack 11 is fixed relative to the housing 1 and contacts the gear 41. When the gear 41 rotates together with the output shaft of the driving mechanism, it will move downward along the plane where the air inlet 101 is located relative to the rack 11 together with the sliding member 3. Then, the baffle 2 will move downward while rotating forward, that is, the top edge of the baffle 2 will not be higher than the top surface of the cabinet, and the gap 01 (interval) between the top edge of the baffle 2 and the housing (cabinet) will decrease. Therefore, when the baffle 2 is opened, on the one hand, it will not interfere with the cabinet, the gap 01 between the top of the housing 1 and the cabinet can be reduced, and even there is no need to leave a gap between the top of the housing 1 and the wall cabinet, thus avoiding cleaning the gap; on the other hand, it overcomes the defect of the increased gap 01 caused by the hinge in the background technology, reduces the amount of oil fume flowing out through the gap 01, and then reduces the cleaning difficulty of the wall cabinet. In addition, it also reduces the possibility of oil fume backflow and improves the oil fume suction ability.

[0049] In the description and claims of the present invention, directional terms such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", etc. are used to describe various exemplary structural parts and elements of the present invention. However, these terms are used here only for the purpose of convenient description and are determined based on the exemplary orientations shown in the drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these directional terms are only used as explanations and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to the directions opposite to or consistent with the direction of gravity.

Claims

1. A side suction range hood, comprising: A housing (1), the upper region of the front side thereof having an air inlet (101); A smoke baffle (2), disposed at a position of the housing (1) corresponding to the air inlet (101), and arranged to be able to rotate forward relative to the housing (1) to open the air inlet (101) or rotate backward to close the air inlet (101). When the air inlet (101) is in a closed state, the top edge of the smoke baffle (2) is located below the top surface of the housing (1) or flush with the top surface of the housing (1); Characterized in that, It further comprises: A sliding member (3), which is located behind the smoke baffle (2), and is rotatably connected to a position near the upper part of the back surface of the smoke baffle (2) through a horizontally extending mounting shaft (21), and is constrained on the housing (1) to be able to move up and down along the plane where the air inlet (101) is located to drive the smoke baffle (2) to move up and down; A driving mechanism, mounted on the sliding member (3), and having an output shaft extending in the left - right direction; A rotating wheel, which is fixedly sleeved on the output shaft of the driving mechanism, and rotates around the axis of its output shaft under the drive of the driving mechanism; A transmission member, which is located behind the smoke baffle (2), and extends along the movement direction of the sliding member (3), and is relatively fixed on the housing (1), and can be in contact with the rotating wheel, and is used to make the rotating wheel and the sliding member (3) move together along the length direction of the transmission member during the rotation of the rotating wheel; and A transmission mechanism (5), used to drive the smoke baffle (2) to rotate forward and backward relative to the housing (1), the power input end thereof is drivingly connected to the output shaft of the driving mechanism, and the power output end thereof is rotatably connected to the back surface of the smoke baffle (2) through a horizontally extending connecting shaft (22), and the connecting shaft (22) is located below the mounting shaft (21).

2. The side suction range hood according to claim 1, characterized in that: The rotating wheel is a gear (41), and the transmission member is a rack (11) meshing with the gear (41).

3. The side-suction range hood according to claim 2, characterized in that: The transmission mechanism (5) includes a crank (51) and a connecting rod (52). The first end of the connecting rod (52) is rotatably connected to the smoke baffle (2) through the connecting shaft (22), and a guiding groove (521) extending along its length direction is provided at the second end of the connecting rod (52). The first end of the crank (51) is mounted on the output shaft of the driving mechanism, and a convex shaft (511) capable of moving along the length direction of the guiding groove (521) and capable of rotating relative to the connecting rod (52) is provided at the second end of the crank (51), and the rotation axis of the convex shaft (511) is along the left - right direction.

4. The side-suction range hood according to claim 3, wherein: The crank (51) is an arc - shaped rod with an opening facing forward.

5. The side-suction range hood according to claim 2, wherein: The rack (11) is located below the gear (41).

6. The side-suction range hood according to claim 2, wherein: The interior of the housing (1) is hollow - formed to form a cavity (10), and the driving mechanism, the gear (41), the rack (11) and the sliding member (3) are all located in the cavity (10).

7. The side suction range hood according to claim 1, wherein: There are two sets of the transmission mechanism (5), the sliding member (3), the rotating wheels and the transmission members, which are arranged at intervals in the left-right direction. The left and right rotating wheels are coaxially arranged and are both mounted on the output shaft of the driving mechanism.

8. The side-suction range hood according to claim 7, wherein: The driving mechanism is a dual-output shaft motor (4).

9. The side-suction range hood according to any one of claims 1 to 8, characterized in that: A fixing strip (12) which is gradually inclined backward from top to bottom and is located behind the smoke baffle (2) is relatively fixed to the machine shell (1). The sliding member (3) is slidably constrained on the fixing strip (12) along the length direction of the fixing strip (12).

10. The side suction range hood according to claim 9, characterized in that: The top of the fixing strip (12) extends forward to form a mounting strip (121), and the mounting strip (121) is arranged on the top plate of the machine shell (1).

11. The side suction range hood according to claim 9, characterized in that: The sliding member (3) is a vertically arranged sliding plate which is gradually inclined backward from top to bottom. A slot (31) which extends along the length direction of the fixing strip (12) for the fixing strip (12) to be inserted therein is formed at the rear part of the sliding plate.

12. The side-suction range hood according to claim 9, wherein: The surface where the air inlet (101) is located is gradually inclined backward from top to bottom, and the extending direction of the fixing strip (12) is consistent with the inclined direction of the surface where the air inlet (101) is located.

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