CN115638442A

CN115638442A - Side-draft range hood

Info

Publication number: CN115638442A
Application number: CN202211128607.9A
Authority: CN
Inventors: 翁科立
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2022-09-16
Filing date: 2022-09-16
Publication date: 2023-01-24

Abstract

The invention relates to a side-draft range hood, which comprises a shell, wherein an air inlet is formed in the upper area of the front side; the smoke baffle is arranged on the position of the shell corresponding to the air inlet; the sliding part is positioned behind the smoke baffle plate, is rotatably connected with the position, close to the upper part, of the back of the smoke baffle plate through a left-right extending mounting shaft, and can be constrained on the shell in a way of moving up and down along the surface of the air inlet so as to drive the smoke baffle plate to move up and down; a drive mechanism mounted on the slider and having an output shaft extending in the left-right direction; the rotating wheel is fixedly penetrated on the output shaft and rotates around the axis of the output shaft under the driving of the driving mechanism; the transmission piece is positioned behind the smoke baffle plate, extends along the movement direction of the sliding piece and can be contacted with the rotating wheel; the transmission mechanism is used for driving the smoke baffle to rotate back and forth relative to the shell. Interference with the cabinet can not be generated, the quantity of oil smoke flowing out at intervals is reduced, the difficulty in cleaning the wall cabinet is reduced, and the oil smoke suction capacity is improved.

Description

Side-draft range hood

Technical Field

The invention belongs to the technical field of range hoods, and particularly relates to a side-draft range hood.

Background

The range hood has become one of the indispensable kitchen household electrical appliances in modern families. The range hood of the near-suction type absorbs most of the oil smoke close to the cooking bench in an arc form by utilizing the vortex wind pressure principle, and can reduce the adverse effect on the human health.

Present nearly inhale formula range hood as china utility model patent "a nearly inhale formula range hood", its patent number is ZL201721290314.5 (grant notice No. CN 207539970U), discloses a nearly inhale formula range hood, including casing and fan system, the casing is including the panel that is the slope with the horizontal direction that is located the front end, set up the opening on the panel and become range hood's air intake, the front side of panel is provided with and keeps off the smoke screen, keep off the smoke screen and rotate with the upper portion of panel and be connected, thereby keep off the smoke screen and can outwards rotate and open range hood's air intake or inwards rotate and close range hood's air intake. After the air intake was opened to the cigarette board, the top of keeping off the cigarette board was followed and is higher than the top of box, and the cupboard is installed usually at the top of box, and this moment, the top of keeping off the cigarette board is followed and is easily produced to interfere or produce to interfere with the door of cupboard with the bottom of cupboard, for this reason through leaving certain clearance between the bottom of the top of box and cupboard, the existence in clearance, the deposition appears easily and difficult clear problem to bring inconvenience and clean puzzlement for the user.

As the chinese utility model patent "range hood of effect is carried to air inlet", its patent number is ZL201920158911.5 (the grant bulletin number is CN 209744458U) and discloses a range hood of effect is carried to air inlet, including quick-witted case, panel components (keeping off the cigarette board) and drive arrangement, drive arrangement installs at quick-witted incasement and can drive panel components moves, in order to incite somebody to action the collection smoke chamber that collection petticoat pipe formed opens or is closed, the roof fixedly connected with hinge support of machine case, just hinge support is located the downside of roof the dorsal part of collection petticoat pipe, panel components's upper end is fixed with the hinge, the hinge with hinge support rotates to be connected.

The topside of the panel assembly of above-mentioned patent passes through the hinge and articulates the topside forward position at quick-witted case (box or casing), opens the back at the panel assembly, and the top edge of panel assembly is not higher than the top of box, but, because the self structural feature of hinge structure, opens the back at the panel assembly, and a gap can appear in the pivot position of hinge, can appear a gap between the topside of panel assembly and the quick-witted case promptly, and the oil smoke can be followed this gap and overflow. Because the top of the machine case is usually provided with the cabinet, when the range hood works, on one hand, the oil smoke overflowing from the gap is easy to accumulate on the cabinet, and the difficulty in cleaning the cabinet is increased; on the other hand, the oil smoke colliding with the cabinet can reversely flow to the smoke inlet to influence the effect of the oil smoke.

Therefore, further improvements to existing near-suction range hoods are needed.

Disclosure of Invention

The invention aims to solve the technical problem of the prior art and provides a side-draft range hood which can effectively reduce the gap between the top edge of a smoke baffle and a box body when the top of the smoke baffle is not higher than the top of the box body after the smoke baffle opens an air inlet.

The technical scheme adopted by the invention for solving the technical problems is as follows: a side-draft range hood comprises:

the upper area of the front side of the shell is provided with an air inlet;

the smoke baffle plate is arranged on the position, corresponding to the air inlet, of the shell and can rotate forwards relative to the shell to open the air inlet or rotate backwards to close the air inlet, and the top edge of the smoke baffle plate is positioned below the top surface of the shell or is flush with the top surface of the shell when the air inlet is in a closed state;

it is characterized by also comprising:

the sliding part is positioned behind the smoke baffle plate, is rotatably connected with the position, close to the upper part, of the back of the smoke baffle plate through a left-right extending mounting shaft, and can be constrained on the shell in a manner of moving up and down along the surface of the air inlet so as to drive the smoke baffle plate to move up and down;

a drive mechanism mounted on the slider and having an output shaft extending in a left-right direction;

the rotating wheel is fixedly penetrated on the output shaft of the driving mechanism and rotates around the axis of the output shaft of the driving mechanism under the driving of the driving mechanism;

the transmission piece is positioned behind the smoke baffle plate, extends along the movement direction of the sliding piece, is relatively fixed on the machine shell, can be in contact with the rotating wheel and is used for enabling the rotating wheel and the sliding piece to move together along the length direction of the transmission piece during the rotation of the rotating wheel; and

the transmission mechanism is used for driving the smoke baffle to rotate front and back relative to the shell, the power input end of the transmission mechanism is connected with the output shaft of the driving mechanism in a driving mode, the power output end of the transmission mechanism is connected with the back face of the smoke baffle in a rotating mode through a connecting shaft extending in the left-right direction, and the connecting shaft is located below the mounting shaft.

The rotating wheel can be in the form of a cam, the transmission piece can be in the form of a plate, and when the cam rotates, the cam moves downwards under the action of the transmission piece, and when the cam rotates towards the opposite direction, the cam moves upwards under the action of the transmission piece; it is also possible to take the form of a gear wheel, but preferably the rotating wheel is a gear wheel and the transmission member is a rack which engages the gear wheel.

The transmission mechanism may be in various forms, and may be in a form of matching a crank with a connecting rod, or in a form of realizing rotation of the smoke barrier in patent nos. ZL201620433543.7 or ZL202010609847.5, but preferably, the transmission mechanism includes a crank and a connecting rod, a first end of the connecting rod is rotatably connected with the smoke barrier through the connecting shaft, a second end of the connecting rod is provided with a guide groove extending along a length direction thereof, a first end of the crank is mounted on the output shaft of the driving mechanism, and a second end of the crank is provided with a protruding shaft capable of moving along the length direction of the guide groove and rotating relative to the connecting rod, and a rotation axis of the protruding shaft is along a left-right direction.

In order to prevent the connecting rod from interfering when rotating, the crank is an arc-shaped rod with a front opening.

The rack may be located above the gear or below the gear, but to avoid interference with the crank, preferably the rack is located below the gear.

In order to protect the driving mechanism, the gear, the rack and the like, a cavity is formed in the hollow part of the shell, and the driving mechanism, the gear, the rack and the sliding piece are all positioned in the cavity.

In order to keep the left side and the right side of the smoke baffle synchronous in the rotating process, the transmission mechanisms, the sliding parts, the rotating wheels and the transmission parts are arranged in two groups at intervals along the left and right directions, and the left rotating wheels and the right rotating wheels are coaxially arranged and are both arranged on an output shaft of the driving mechanism.

The driving mechanism can adopt a double-output shaft motor and can also adopt a hollow shaft motor, but preferably, the driving mechanism is the double-output shaft motor.

The sliding piece is constrained on the fixed strip in a sliding manner along the length direction of the fixed strip.

In order to realize the installation of the fixing strip, the top of the fixing strip extends forwards to form an installation strip, and the installation strip is arranged on the top plate of the machine shell.

In order to guide the sliding of the sliding part, the sliding part is a sliding plate which is vertically arranged and gradually inclines backwards from top to bottom, and the rear part of the sliding plate is provided with a slot which extends along the length direction of the fixed bar and is used for the fixed bar to be inserted in.

The surface of the air inlet can be vertically arranged or obliquely arranged, but in order to absorb most of the oil smoke close to the cooking bench in an arc form, the surface of the air inlet is gradually inclined backwards from top to bottom, and the extending direction of the fixing strip is consistent with the inclined direction of the surface of the air inlet.

Compared with the prior art, the invention has the advantages that: when the air inlet is in a closed state, the top edge of the smoke baffle plate is lower than or flush with the top of the machine shell, when the air inlet needs to be opened, the driving mechanism drives the smoke baffle plate to rotate forwards through the transmission mechanism, because the driving mechanism is arranged on the sliding part which is rotationally connected with the smoke baffle plate, the rotating wheel is fixedly penetrated on the output shaft of the driving mechanism, the transmission part is fixed relative to the machine shell and is contacted with the rotating wheel, when the rotating wheel rotates along with the output shaft of the driving mechanism, the rotating wheel and the sliding part move downwards along the surface where the air inlet is located relative to the transmission part, the smoke baffle plate can move downwards while rotating forwards, namely, the top edge of the smoke baffle plate is not higher than the top surface of the box body, and the gap (interval) between the top edge of the smoke baffle plate and the machine shell (box body) can be reduced, therefore, when the smoke baffle plate is opened, on one hand, the smoke baffle plate can not interfere with the cabinet, the gap between the top of the machine shell and the cabinet can be reduced, even the gap between the top of the machine shell and the wall cabinet is not required, and the gap can be prevented from being cleaned; on the other hand, overcome the defect that the interval increases because of the hinge is articulated among the background art, reduced the oil smoke volume of flowing out through the interval and then reduced the clean degree of difficulty to the built-in cupboard, in addition, still reduce the anti possibility of scurrying of oil smoke, improved the ability of inhaling oil smoke.

Drawings

Fig. 1 is a schematic structural diagram of the air inlet in the embodiment in an open state;

FIG. 2 is an enlarged view of section I of FIG. 1;

FIG. 3 is a schematic view of a portion of the structure of FIG. 1;

FIG. 4 is a schematic view of a portion of the structure of FIG. 1 from another angle;

FIG. 5 is a cross-sectional view of a portion of the structure of FIG. 1;

FIG. 6 is a schematic view of a portion of the structure of FIG. 1;

FIG. 7 is a schematic structural diagram of the present embodiment with the air inlet closed;

FIG. 8 is a cross-sectional view of a portion of the structure of FIG. 7;

fig. 9 is a partial structure diagram of fig. 7.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 9, the side-draft range hood of the present embodiment includes a housing 1, a smoke barrier 2, a sliding member, a transmission member, a rotating wheel, a driving mechanism and a transmission mechanism 5. Wherein, the upper region of the front side of the casing 1 is provided with an air inlet 101, and the inside of the casing 1 is provided with a cavity 10 communicated with the air inlet 101. The front panel of the housing 1 is inclined gradually backward from top to bottom, and the upper region of the front panel has an air inlet 101, so that the surface of the air inlet 101 is inclined gradually backward from top to bottom. In addition, an inner panel 13 is disposed in the cavity 10 and is parallel to the surface of the air inlet 101, and a filter screen 131 is installed on the inner panel 13 at a position corresponding to the air inlet 101.

As shown in fig. 1, 2 and 4, the smoke barrier 2 is disposed on the casing 1 at a position corresponding to the air inlet 101 and is arranged to rotate forward relative to the casing 1 to open the air inlet 101 or rotate backward to close the air inlet 101, and in a closed state of the air inlet 101, a top edge of the smoke barrier 2 is located below a top surface of the casing 1 or flush with the top surface of the casing 1. In the present embodiment, as shown in fig. 1 and 2, the top edge of the smoke barrier 2 is flush with the top surface of the cabinet 1.

As shown in fig. 2, 8 and 9, the slider 3, the drive mechanism, the rotating wheel and the transmission member are located behind the smoke barrier 2 and within the cavity 10. The casing 1 is relatively fixed with the fixed strip 12 that is located behind the cigarette board 2 and top-down slope gradually, and the top of fixed strip 12 extends forward and is formed with mounting bar 121, and mounting bar 121 sets up on the roof of casing 1. The sliding member 3 in this embodiment is a sliding plate which is vertically arranged and gradually inclines backward from top to bottom, and the rear portion of the sliding plate is formed with a slot 31 gradually inclining backward from top to bottom. The extending direction of the fixing strip 12, the extending direction of the slot 31 and the inclined direction of the surface of the air inlet are consistent. The fixing strip 12 is inserted into the insertion groove 31. The sliding plate is slidably constrained on the fixing strip 12 along the length direction of the fixing strip 12, and the sliding plate is rotatably connected with the bracket 20 through a mounting shaft 21 extending left and right, so that the smoke barrier 2 is driven to move up and down when the sliding plate slides along the length direction of the fixing strip. The mounting shafts 21 of the present embodiment are two and arranged at intervals in the left-right direction, and the two are arranged coaxially.

As shown in fig. 2, 8 and 9, the driving mechanism is a motor 4 installed on the sliding plate, the motor 4 may be a motor with dual output shafts, or may be a motor with a hollow shaft, and the output shaft of the motor 4 extends along the left-right direction. The two sets of rotating wheels, transmission members and transmission mechanisms have the same structure, and one set is taken as an example for description. The rotating wheel is a gear 41 fixed on the output shaft of the motor 4 and driven by the motor 4 to rotate. The transmission member is a rack 11 fixedly mounted on the housing 1, the rack 11 extends along the moving direction of the sliding member 3 and is located below the gear 41, specifically, the rack 11 is inclined backward gradually from top to bottom and is engaged with the gear 41, so that, under the operation of the motor 4, the gear 41 rotates, and as the gear 41 is engaged with the rack 11, the gear 41, the rack 11 and the sliding plate move together along the length direction of the fixed bar 12.

The transmission mechanism 5 of this embodiment is used for driving the smoke barrier 2 to rotate back and forth relative to the casing 1, the power input end of the transmission mechanism 5 is connected with the output shaft of the driving mechanism in a driving manner, the power output end of the transmission mechanism 5 is connected with the back of the smoke barrier 2 in a rotating manner through a connecting shaft 22 extending along the left-right direction, and the connecting shaft 22 is positioned below the mounting shaft 21. Each of the mounting shafts 21 corresponds to one of the connecting shafts 22, and the two connecting shafts 22 are arranged at intervals in the left-right direction and are arranged coaxially.

As shown in fig. 2, 3, 5 to 9, the transmission mechanism 5 includes a crank 51 and a connecting rod 52, a first end of the connecting rod 52 is rotatably connected to the smoke baffle 2 through the connecting shaft 22, a second end of the connecting rod 52 is provided with a guide groove 521 extending along the length direction thereof, a first end of the crank 51 is mounted on an output shaft of the driving mechanism, a second end of the crank 51 is provided with a protruding shaft 511 capable of moving along the length direction of the guide groove 521 and rotating relative to the connecting rod 52, and the rotation axis of the protruding shaft 511 is along the left-right direction. The crank 51 in this embodiment is an arc-shaped rod with an opening facing forward.

The working process of the smoke baffle plate is as follows:

when the air inlet needs to be opened, the motor 4 works to drive the gear 41 to rotate anticlockwise, and as the gear 41 is meshed with the fixedly arranged rack 11, the sliding plate, the motor and the gear 41 move downwards along the length direction of the rack 11, and at the moment, the sliding plate drives the smoke baffle 2 to move downwards; meanwhile, the crank 51 rotates counterclockwise, which will drive the connecting rod 52 to move forward, and the connecting rod 52 pushes the smoke barrier to rotate forward to open the air inlet 101;

when the air inlet 101 needs to be closed, the motor 4 works to drive the gear 41 to rotate clockwise, and as the gear 41 is meshed with the fixedly arranged rack 11, the sliding plate, the motor and the gear 41 move upwards along the length direction of the rack 11, and at the moment, the sliding plate drives the smoke baffle 2 to move upwards; meanwhile, the crank 51 rotates clockwise, which drives the connecting rod 52 to move backward, and the connecting rod 52 pulls the smoke barrier 2 to rotate backward to close the air inlet 101.

When the air inlet 101 of the side-draft range hood is in a closed state, the top edge of the smoke baffle 2 is lower than or flush with the top of the machine shell 1, when the air inlet 101 needs to be opened, the driving mechanism drives the smoke baffle 2 to rotate forwards through the transmission mechanism, because the driving mechanism is arranged on the sliding part 3 which is rotatably connected with the smoke baffle 2, the gear 41 is fixedly penetrated on the output shaft of the driving mechanism, the rack 11 is fixed relative to the machine shell 1 and is contacted with the gear 41, when the gear 41 rotates along with the output shaft of the driving mechanism, the gear 41 and the sliding part 3 move downwards along the surface where the air inlet 101 is positioned relative to the rack 11, the smoke baffle 2 can move downwards while rotating forwards, namely, the top edge of the smoke baffle 2 is not higher than the top surface of the box body, and the interval 01 (interval) between the top edge of the smoke baffle 2 and the machine shell (box body) can be reduced, therefore, when the smoke baffle 2 is opened, on one hand, the interval 01 between the top of the machine shell 1 and the cabinet can be reduced, even the interval between the top of the machine shell 1 and the wall cabinet is not required to clean the gap in the cabinet, thereby avoiding the gap in the cabinet; on the other hand, the defect that the interval 01 is increased due to hinge joint in the background art is overcome, the oil smoke quantity flowing out through the interval 01 is reduced, the difficulty in cleaning the wall cabinet is reduced, in addition, the possibility of oil smoke reverse channeling is reduced, and the oil smoke suction capacity is improved.

Directional terms such as "front," "rear," "upper," "lower," "left," "right," "side," "top," "bottom," and the like are used in the description and claims of the present invention to describe various example structural portions and elements of the invention, but are used herein for convenience of description only and are to be determined based on the example orientations shown in the drawings. Because the disclosed embodiments of the present invention may be oriented in different directions, the directional terms are used for descriptive purposes and are not to be construed as limiting, e.g., "upper" and "lower" are not necessarily limited to directions opposite to or coincident with the direction of gravity.

Claims

1. A side-draft range hood comprises:

a housing (1) having an air inlet (101) in an upper region of a front side thereof;

the smoke baffle plate (2) is arranged on the position, corresponding to the air inlet (101), of the machine shell (1) and can rotate forwards relative to the machine shell (1) to open the air inlet (101) or rotate backwards to close the air inlet (101), and when the air inlet (101) is in a closed state, the top edge of the smoke baffle plate (2) is positioned below the top surface of the machine shell (1) or is flush with the top surface of the machine shell (1);

it is characterized by also comprising:

the sliding piece (3) is positioned behind the smoke baffle plate (2), is rotatably connected with the position, close to the upper part, of the back surface of the smoke baffle plate (2) through a left-right extending installation shaft (21), and is constrained on the machine shell (1) in a manner of moving up and down along the surface where the air inlet (101) is positioned so as to drive the smoke baffle plate (2) to move up and down;

a drive mechanism mounted on the slider (3) and having an output shaft extending in the left-right direction;

the transmission piece is positioned behind the smoke baffle (2), extends along the movement direction of the sliding piece (3), is relatively fixed on the shell (1), can be in contact with the rotating wheel, and is used for enabling the rotating wheel and the sliding piece (3) to move together along the length direction of the transmission piece during the rotation of the rotating wheel; and

the transmission mechanism (5) is used for driving the smoke baffle plate (2) to rotate back and forth relative to the machine shell (1), the power input end of the transmission mechanism is connected with the output shaft of the driving mechanism in a driving mode, the power output end of the transmission mechanism is connected with the back face of the smoke baffle plate (2) in a rotating mode through a connecting shaft (22) extending in the left and right directions, and the connecting shaft (22) is located below the mounting shaft (21).

2. The side draft range hood according to claim 1, wherein: the rotating wheel is a gear (41), and the transmission piece is a rack (11) meshed with the gear (41).

3. The side draft range hood according to claim 2, wherein: the transmission mechanism (5) comprises a crank (51) and a connecting rod (52), the first end of the connecting rod (52) is connected with the smoke baffle (2) in a rotating mode through the connecting shaft (22), the second end of the connecting rod (52) is provided with a guide groove (521) extending along the length direction of the connecting rod, the first end of the crank (51) is installed on an output shaft of the driving mechanism, the second end of the crank (51) is provided with a protruding shaft (511) which can move along the length direction of the guide groove (521) and can rotate relative to the connecting rod (52), and the rotating axis of the protruding shaft (511) is along the left-right direction.

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

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

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

7. The side draft range hood according to claim 1, wherein: the transmission mechanism (5), the sliding part (3), the rotating wheels and the transmission part are arranged in two groups at intervals along the left-right direction, and the left rotating wheel and the right rotating wheel are coaxially arranged and are both arranged on an output shaft of the driving mechanism.

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

9. The side draft range hood according to any one of claims 1 to 8, wherein: the casing (1) is relatively fixed with a fixed bar (12) which is positioned behind the smoke baffle (2) and gradually inclines backwards from top to bottom, and the sliding piece (3) can be restrained on the fixed bar (12) in a sliding manner along the length direction of the fixed bar (12).

10. The side draft range hood according to claim 9, wherein: the top of the fixing strip (12) extends forwards 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 draft range hood according to claim 9, wherein: the sliding piece (3) is a sliding plate which is vertically arranged and gradually inclines backwards from top to bottom, and a slot (31) which extends along the length direction of the fixed bar (12) and is used for the fixed bar (12) to be inserted into is formed at the rear part of the sliding plate.

12. The side draft range hood according to claim 9, wherein: the surface where the air inlet (101) is located is gradually inclined backwards 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.