CN111750399A

CN111750399A - Smoke exhaust ventilator

Info

Publication number: CN111750399A
Application number: CN202010644380.8A
Authority: CN
Inventors: 谭柏豪; 马世涛; 孙培原; 蒋济武
Original assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2020-10-09
Anticipated expiration: 2040-07-07
Also published as: CN111750399B

Abstract

The embodiment of the invention provides a range hood, which comprises: the cigarette machine body comprises an air inlet; the condensation plate is positioned at the air inlet and comprises a first end and a second end which are deviated from each other; the driving assembly is connected with the cigarette machine body and can drive the second end of the condensing plate to rotate around the first end of the condensing plate; and the first end of cigarette machine body and condensing plate is connected to spacing subassembly, and spacing subassembly can be held at the second of condensing plate and move the in-process of the direction of keeping away from the air intake at the orientation, and the first end of guide condensing plate moves towards the central line direction of air intake. Through setting up drive assembly and spacing subassembly, can change the oil smoke passageway size between condensing panel and the air intake as required under the condition that consumes lower mechanism cost, adjust range hood's smoking ability makes inside oil smoke or the air current gets into range hood more fast, prevents that the oil smoke is excessive, satisfies user's smoking demand.

Description

Smoke exhaust ventilator

Technical Field

The embodiment of the invention relates to the technical field of kitchen equipment, in particular to a range hood.

Background

The conventional European-style range hood is provided with a condensing plate below the air inlet so as to block oil and water dropping from the interior of the range hood. Meanwhile, the arrangement of the condensation plate can expand the negative pressure area at the bottom of the range hood, enhance the smoking capability around the range hood and prevent the oil smoke from overflowing. In addition, in the cooking process, as the oil fume firstly contacts the condensing plate in the rising process, the oil fume is more easily intercepted by the filter screen after being condensed by the condensing plate. In the related art, in order to improve the smoking effect of the conventional european style cigarette machine, a channel with a fixed width is often formed between the left and right front sides of the condensation plate and the flow guide plate of the cigarette machine for airflow. In other words, the size of the condensing plate is fixed, the channel between the condensing plate and the guide plate is fixed, and when the range hood is opened, uniform airflow enters the fan around the channel. However, when cooking oil fume is generated at one cooking bench, most of the oil fume only enters the range hood through the channel at one side, and the oil fume cannot be quickly sucked away through the channel at one side due to uneven air flow.

Disclosure of Invention

Embodiments of the present invention are directed to solving at least one of the technical problems occurring in the prior art.

To this end, an aspect of an embodiment of the present invention provides a range hood.

In view of the above, according to an aspect of the embodiments of the present invention, there is provided a range hood, including: the cigarette machine body comprises an air inlet; the condensation plate is positioned at the air inlet and comprises a first end and a second end which are deviated from each other; the driving assembly is connected with the cigarette machine body and can drive the second end of the condensing plate to rotate around the first end of the condensing plate; and the first end of cigarette machine body and condensing plate is connected to spacing subassembly, and spacing subassembly can be held at the second of condensing plate and move the in-process of the direction of keeping away from the air intake at the orientation, and the first end of guide condensing plate moves towards the central line direction of air intake.

According to the range hood provided by the embodiment of the invention, the condensation plate can rotate and translate relative to the air inlet under the combined action of the driving component and the limiting component, so that different smoking channels are formed, and different smoking states can be realized. Specifically, the condensation plate covers the air inlet in an initial state, and a gap exists between the condensation plate and the air inlet, and the gap can be used as a smoking channel for oil smoke to pass through and enter the inside of the cigarette machine body. Along with the second end of the condensing plate moving towards the direction far away from the air inlet, the first end of the condensing plate moves towards the direction of the central line of the air inlet, and the smoking state changes. At the moment, the second end of the condensing plate moves towards the direction far away from the air inlet, so that on one hand, a negative pressure area formed by the operation of a fan system in the range hood body moves downwards, and the oil smoke is more easily sucked into the range hood. On the other hand, the gap between the air inlet and the condensing plate can be increased, the smoke suction channel is widened, oil smoke can enter the range hood in a wider flow channel section, and the phenomenon that the front-end air inlet resistance is increased due to the fact that the direction of an airflow path is changed suddenly due to the fact that the flow channel is too narrow is avoided, namely the reduction of the air inlet resistance is facilitated. The first end of the condensing plate moves towards the central line direction of the air inlet, so that the corresponding area of the air inlet can be exposed and can be directly aligned with the cooking bench oil fume generating source, the oil fume directly enters the range hood, the change of the air flow direction is reduced, and the air flow resistance is further reduced. Specifically, make the first end of condensing plate towards one side at user place, be located the outside of cigarette machine body promptly for the inboard (the second end) of condensing plate moves down, neither occupies user's culinary art operating space, can make again that oil on the condensing plate drips under the effect of gravity and flow to inboard, can suit with the oil cup that sets up in the inboard, the collection oil of being convenient for. In addition, the range hood provided by the embodiment of the invention realizes the movement of the condensation plate by means of the driving assembly and the limiting assembly, and has the advantages of simple structure, low cost and small movement amount of the condensation plate. Therefore, the range hood provided by the embodiment of the invention can change the size of the oil smoke channel between the condensation plate and the air inlet as required by arranging the driving component and the limiting component under the condition of consuming lower mechanism cost, and adjust the smoking capacity of the range hood, so that oil smoke or airflow can enter the range hood more quickly, the oil smoke is prevented from overflowing, and the smoking requirement of a user is met. It can be understood that the rotation angles of the condensing plates are different, the sizes of the smoking channels are correspondingly different, the smoking capacity adjustment of different degrees can be realized, and different requirements of users are met. The smaller the rotation angle of the condensation plate is, namely the closer the second end of the condensation plate is to the air inlet, the closer the condensation plate is to the air inlet as a whole, the smaller the occupation of the cooking space below the range hood is, the more convenient the user can perform cooking operation, and the oil stain sputtered on the range hood in the cooking process can be reduced; the bigger the turned angle of the condensation plate, i.e. the farther away the second end of the condensation plate from the air inlet, the bigger the smoking channel is, the stronger the smoking ability is, and the more the oil smoke is favorably sucked into the range hood rapidly.

In addition, the range hood provided by the technical scheme of the invention also has the following additional technical characteristics:

in one possible design, the cigarette maker body further comprises: the air inlet is positioned at the end part of the shell; the guide plate is arranged around the air inlet; the condensing plate is positioned outside the shell and comprises a condensing surface, and the area of the condensing surface is larger than the cross-sectional area of the flow passage of the air inlet.

In this design, specifically limited the cigarette machine body including casing and the guide plate that is connected, the condensing panel is located outside the casing for form the oil smoke passageway between condensing panel and the guide plate, along with the turned angle of condensing panel changes, the size of oil smoke passageway also changes. The condensing surface area through making the condensing plate is greater than the runner cross-sectional area of air intake, makes the condensing plate can cover the air intake under initial condition promptly, can effectively block from inside oil and the water of down drippage of casing on the one hand, and on the other hand can make the negative pressure zone of cigarette machine body bottom expand outward, can increase the negative pressure area, reinforcing range hood smoking ability all around prevents that the guide plate position oil smoke is excessive all around.

In one possible design, the drive assembly is rotationally connected to the cold plate.

In this design, drive assembly is connected with the condensing panel, can realize drive assembly and condensing panel's reliable connection for drive assembly not only can promote the condensing panel to the direction rotation of keeping away from the air intake, still can stimulate the condensing panel to the direction rotation of being close to the air intake, realizes the conversion of different smoking states. In addition, the driving assembly is connected with the condensing plate in a rotating mode, and the condensing plate can rotate flexibly.

In one possible design, the drive assembly includes: the driving push rod is connected with the cigarette machine body; and one end of the bent connecting arm is connected with the driving push rod, and the other end of the bent connecting arm is rotatably connected with the condensing plate.

In this design, through regard as drive power with drive push rod to set up crooked linking arm between drive push rod and condensing panel, usable crooked linking arm is nimble to be adjusted the stress position of condensing panel, in order to optimize the condensing panel atress, promotes drive efficiency, and drive push rod then can suitably keep away from this stress position setting, has promoted the flexibility of structure. Specifically, the driving push rod may be an electric push rod or an electric hydraulic push rod as long as the driving force can be provided. Furthermore, one end of the bending connecting arm, which is far away from the driving push rod, is provided with a mounting hole, a connecting groove is arranged at the corresponding position of the condensing plate, a mounting hole is formed in the groove wall of the connecting groove, and a rotating shaft which penetrates through the mounting hole and the mounting hole simultaneously is arranged, so that the bending connecting arm and the condensing plate can be rotatably connected. In particular, the mounting hole may be a kidney-shaped hole so that the condensing plate may be moved appropriately relative to the driving assembly, so that the rotation of the condensing plate is more flexible.

In one possible design, the body of the cigarette maker includes first and second sides that face away from each other, the first side of the body of the cigarette maker being distal from the first end of the condensation plate; the drive ram is located on a first side of the cigarette machine body.

In this design, it is specifically defined that the drive ram is located on the side of the cigarette machine body away from the first end of the cold plate. When the first end of the condensation plate moves towards the central line direction of the air inlet, the corresponding area of the air inlet can be exposed, so that the oil smoke can directly enter the range hood conveniently, the first end of the condensation plate faces one side where a user is located, namely, the first end of the condensation plate is located on the outer side of the range hood body, in other words, the first side of the range hood body is the inner side, and the second side of the condensation plate is the outer side. It can be understood that, because the main air inlet of the fan system arranged inside the cigarette machine body faces the outer side of the cigarette machine body, the oil smoke entering the cigarette machine body from the inner side is smaller relative to the outer side of the cigarette machine body. Through setting up drive push rod in the inboard of cigarette machine body, can slow down the pollution of greasy dirt to drive push rod, both helped alleviateing user's clean burden, can guarantee drive assembly's reliable operation again, guaranteed range hood's oil absorption effect, promoted range hood's reliability. Specifically, the drive ram is located within the cigarette maker body, specifically within the casing.

In one possible design, the spacing assembly includes: a limiting groove; the limiting protrusion is positioned in the limiting groove, extends along the depth direction of the limiting groove, can rotate in the limiting groove, and can move in a reciprocating manner along the length direction of the limiting groove; one of the limiting groove and the limiting protrusion is connected with the cigarette machine body, and the other of the limiting groove and the limiting protrusion is connected with the first end of the condensing plate.

In this design, specifically limited spacing subassembly and included spacing groove and the spacing arch that is located wherein, through making spacing arch at spacing inslot rotation and reciprocating motion, usable succinct structure guarantees that the condensing panel can rotate for the cigarette machine body, restricts the moving direction of the first end of condensing panel simultaneously. Furthermore, the connecting line direction of the first end and the second end of the condensing plate is taken as the width direction of the range hood, the limiting groove extends along the width direction of the range hood, and the first end of the condensing plate moves towards the direction of the central line of the air inlet in the process that the second end of the condensing plate moves towards the direction far away from the air inlet. One of the limiting groove and the limiting bulge is connected with the guide plate of the cigarette machine body. Specifically, the limiting groove may be a limiting through hole or a limiting groove as long as the moving direction of the limiting protrusion can be limited.

In one possible design, the limiting groove comprises a groove body and a hollow-out connecting part which are connected.

In this design, specifically limited the spacing groove including the groove body that plays limiting displacement to and the fretwork connecting portion that play the connection action, can guarantee reliable spacing and the stable connection of spacing groove. In addition, through adopting the connection structure of fretwork shape, reducible oil smoke passageway keeps out the wind area, reduces the resistance of admitting air, helps promoting range hood's smoking ability.

In one possible design, the range hood further comprises: the guide assembly is connected with the cigarette machine body, the guide assembly is rotatably connected with the second end of the condensation plate, and the guide assembly can guide the second end of the condensation plate to reciprocate along the length direction of the guide assembly.

In this design, range hood still further includes the direction subassembly with cigarette machine body coupling to the direction of movement of the second end of guide condensation plate, direction subassembly cooperatees with spacing subassembly, drive assembly, can protect the steady removal of condensation plate, has promoted range hood's operational reliability. Specifically, the guide assembly comprises a guide groove and a guide pillar which are matched, the guide pillar is located in the guide groove, the guide pillar extends along the length direction of the guide groove, and the guide pillar can move back and forth along the length direction of the guide groove. One of the guide groove and the guide column is connected with the cigarette machine body, the other of the guide groove and the guide column is rotatably connected with the second end of the condensing plate, the guide groove is connected with the shell of the cigarette machine body, and the guide column is rotatably connected with the connecting table at the second end of the condensing plate.

In one possible design, the range hood further comprises: the first end of the condensing plate can move towards the direction of the central line of the air inlet so as to avoid at least one part of the first filter screen.

In this design, it is further defined that the range hood further comprises a first filter screen covering at least a portion of the air intake. When the first end of the condensing plate moves towards the central line direction of the air inlet, the corresponding area of the air inlet can be exposed, the first filter screen is arranged in the area, the first end of the condensing plate can be gradually exposed in the process of moving towards the central line direction of the air inlet, and at the moment, the first filter screen can filter the oil droplets and then enter the corresponding area of the air inlet, so that the condensing oil droplets in the oil smoke can be intercepted, the rectifying effect can be achieved, and the turbulent airflow is reduced.

In one possible design, the range hood further comprises: and the second filter screen is connected with the condensing plate and is positioned on one side of the condensing plate facing the air inlet.

In this design, further limited range hood still including being located the second filter screen of condenser plate towards one side of air intake, the quantity of second filter screen specifically can be two, and two second filter screens are located the both sides of condenser plate respectively, lie in the oil smoke passageway promptly to can remove along with the condenser plate, in order to play functions such as rectification, filtration, help reducing the turbulent air current of oil smoke passageway of flowing through. Specifically, a mounting table may be provided on the condensation plate, with the second filter screen being connected to the mounting table. The second screen and the mounting table may extend from the first end of the cold plate to the second end of the cold plate to increase an active area of the second screen. Further, a part of the second filter screen can stretch into the shell of the cigarette machine body through the air inlet, and at the moment, if the first filter screen is arranged at the same time, the avoidance notch can be formed in the first filter screen to avoid the second filter screen, so that smooth movement of the second filter screen is ensured, the width of the first filter screen does not need to be reduced, and the first filter screen can be ensured to play a reliable filtering role.

Additional aspects and advantages in accordance with the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a range hood according to an embodiment of the present invention in an initial state;

figure 2 illustrates a longitudinal cross-sectional view of a range hood according to one embodiment of the present invention in an initial state;

fig. 3 is a schematic structural diagram illustrating a range hood according to an embodiment of the present invention in a deployed state;

figure 4 illustrates a longitudinal cross-sectional view of a range hood according to one embodiment of the present invention in a deployed state;

fig. 5 shows a partial structural schematic diagram of a range hood according to an embodiment of the invention;

FIG. 6 is a schematic cross-sectional view of a range hood according to one embodiment of the present invention in an initial state;

figure 7 shows a schematic cross-sectional view of a range hood according to one embodiment of the present invention in a deployed state;

fig. 8 is a partial structural schematic diagram of a range hood according to an embodiment of the invention in an initial state;

fig. 9 is a partial schematic structural view of a range hood according to an embodiment of the invention in a deployed state;

figure 10 shows an exploded view of part of the structure of a range hood according to one embodiment of the present invention;

FIG. 11 shows a partial enlarged view of FIG. 10 at section A according to one embodiment of the present invention;

FIG. 12 shows a partial enlarged view of FIG. 10 at section B, according to one embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 12 is:

100 range hood, 110 cigarette machine body, 111 air intake, 112 casing, 113 guide plates, 120 condensation plate, 121 first end, 122 second end, 123 condensation surface, 124 connecting groove, 125 pilot hole, 126 joint table, 127 mount table, 130 drive assembly, 131 drive push rod, 132 crooked linking arm, 133 mounting hole, 140 spacing subassembly, 141 spacing groove, 142 groove body, 143 fretwork connecting portion, 144 spacing arch, 150 direction subassembly, 151 guide way, 152 guide pillar, 160 first filter screen, 170 second filter screen.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

A range hood 100 provided according to some embodiments of the present invention is described below with reference to fig. 1-12.

The first embodiment is as follows:

as shown in fig. 1 to 4 (the dotted lines show the airflow direction), the range hood 100 according to the first embodiment of the present invention includes a range hood body 110, a condensation plate 120, a driving assembly 130, and a limiting assembly 140. Wherein, the cigarette machine body 110 comprises an air inlet 111; the condensing plate 120 is located at the air inlet 111, and the condensing plate 120 includes a first end 121 and a second end 122 facing away from each other; the drive assembly 130 is connected to the machine body 110, the drive assembly 130 being capable of driving the second end 122 of the condensation plate 120 to rotate about the first end 121 of the condensation plate 120; the limiting assembly 140 connects the cigarette maker body 110 and the first end 121 of the condensation plate 120, and the limiting assembly 140 can guide the first end 121 of the condensation plate 120 to move towards the center line direction of the air inlet 111 during the process that the second end 122 of the condensation plate 120 moves towards the direction far away from the air inlet 111.

In the range hood 100 provided by the embodiment of the present invention, the condensation plate 120 can rotate and translate relative to the air inlet 111 under the combined action of the driving component 130 and the limiting component 140, so as to form different smoking channels, and thus different smoking states can be realized. Specifically, as shown in fig. 1 and 2, the condensation plate 120 covers the air inlet 111 in the initial state, and has a gap with the air inlet 111, and the gap can be used as a smoking channel for oil smoke to pass through and enter the inside of the cigarette machine body 110. As shown in fig. 3 and 4, as the second end 122 of the condensation plate 120 moves away from the air inlet 111, the first end 121 moves toward the center line of the air inlet 111 in the direction of the dotted line shown in fig. 4, and the smoking status changes. At this time, the second end 122 of the condensation plate 120 moves in a direction away from the air inlet 111, so that on one hand, a negative pressure region formed by the operation of the fan system in the range hood body 110 moves downward, and the oil smoke is more easily sucked into the range hood 100. On the other hand, the gap between the air inlet 111 and the condensing plate 120 can be increased, so that the smoke suction channel is widened, the oil smoke can enter the range hood 100 through a wider flow channel section, and the phenomenon that the front-end air inlet resistance is increased due to the fact that the direction of an airflow path is changed suddenly due to the fact that the flow channel is too narrow is avoided, namely, the reduction of the air inlet resistance is facilitated. The first end 121 of the condensation plate 120 moves toward the center line of the air inlet 111, so that the corresponding area of the air inlet 111 is exposed and can be directly aligned with the cooking fume generating source of the cooking bench, so that the cooking fume directly enters the range hood 100 as shown in fig. 4, thereby reducing the change of the airflow direction and further reducing the airflow resistance. Specifically, make the first end 121 of condensing plate 120 towards the one side at user place, be located the outside of cigarette machine body 110 promptly for the inboard (being second end 122) of condensing plate 120 moves down, neither occupies user's culinary art operating space, can make the oil droplet on condensing plate 120 flow to the inboard under the effect of gravity again, can suit with the oil cup that sets up in the inboard, is convenient for collect oil. In addition, the range hood 100 provided by the embodiment of the invention realizes the movement of the condensation plate 120 by means of the driving assembly 130 and the limiting assembly 140, and has the advantages of simple structure, low cost and small movement amount of the condensation plate 120. Therefore, the range hood 100 provided by the embodiment of the present invention can change the size of the oil smoke channel between the condensation plate 120 and the air inlet 111 as required by arranging the driving component 130 and the limiting component 140, and adjust the smoking capability of the range hood 100, so that the oil smoke or the air flow can enter the range hood 100 more quickly, thereby preventing the oil smoke from overflowing and meeting the smoking requirements of the user. It can be understood that, the rotation angles of the condensation plate 120 are different, and the sizes of the smoking channels are correspondingly different, so that the smoking capacity can be adjusted in different degrees, and different requirements of users can be met. The smaller the rotation angle of the condensation plate 120 is, that is, the closer the second end 122 of the condensation plate 120 is to the air inlet 111, the closer the condensation plate 120 is to the air inlet 111 as a whole, the smaller the occupation of the cooking space below the range hood 100 is, the more convenient the user can perform cooking operation, and the reduction of oil stains sputtered on the range hood 100 in the cooking process is facilitated; the larger the rotation angle of the condensation plate 120 is, i.e. the farther the second end 122 of the condensation plate 120 is away from the air inlet 111, the larger the smoking channel is, the stronger the smoking capability is, and the more the oil smoke can be sucked into the range hood 100 quickly.

Specifically, as shown in fig. 5, the cigarette maker body 110 includes a casing 112 and a baffle 113 connected with each other, the air inlet 111 is located at an end of the casing 112, and the baffle 113 is disposed around the air inlet 111. As shown in fig. 6 and 7, the condensation plate 120 is located outside the casing 112, so that a smoke passage is formed between the condensation plate 120 and the guide plate 113, and as the rotation angle of the condensation plate 120 changes, the size of the smoke passage also changes. As shown in fig. 2, by making the area of the condensation surface 123 of the condensation plate 120 larger than the cross-sectional area of the flow channel of the air inlet 111, the condensation plate 120 can cover the air inlet 111 in the initial state, on one hand, oil and water dropping from the inside of the casing 112 can be effectively blocked, on the other hand, the negative pressure area at the bottom of the range hood body 110 can be expanded, the negative pressure area can be increased, the smoking capacity around the range hood 100 can be enhanced, and the oil smoke at the periphery of the guide plate 113 can be prevented from overflowing.

Example two:

on the basis of the first embodiment, the second embodiment provides a range hood 100, wherein the driving assembly 130 is connected to the condensation plate 120, so that the reliable connection between the driving assembly 130 and the condensation plate 120 can be realized, and the driving assembly 130 can not only push the condensation plate 120 to rotate in a direction away from the air inlet 111, but also pull the condensation plate 120 to rotate in a direction close to the air inlet 111, thereby realizing the conversion of different smoking states. In addition, the driving assembly 130 is connected to the condensation plate 120 in a rotating manner, so that the condensation plate 120 can rotate flexibly.

Specifically, as shown in figures 6 and 10, the drive assembly 130 includes a drive ram 131 and a curved link arm 132, the drive ram 131 being connected to the cigarette machine body 110, the curved link arm 132, one end of the curved link arm 132 being connected to the drive ram 131, and the other end of the curved link arm 132 being pivotally connected to the cold plate 120. Through regard as drive push rod 131 as drive power to set up crooked linking arm 132 between drive push rod 131 and condensing panel 120, usable crooked linking arm 132 adjusts the stress position of condensing panel 120 in a flexible way, in order to optimize condensing panel 120 atress, promotes drive efficiency, and drive push rod 131 then can suitably keep away from this stress position setting, has promoted the flexibility of structure. For example, as shown in fig. 5 and 6, the force-bearing position can be located in the middle of the condensation plate 120 in the left-right direction, so that the force balance can be ensured, and only one driving assembly 130 can be provided, i.e., single motor linkage is used, which helps to simplify the structure and reduce the mechanism cost. In the front-rear direction, the force-bearing position can be close to the second end 122 of the condensation plate 120, i.e., close to the rear side, which is helpful to increase the force arm, increase the rotation torque, and improve the driving efficiency. Specifically, the driving rod 131 may be an electric rod or an electric hydraulic rod as long as the driving force can be provided. Further, as shown in fig. 10, 11 and 12, a mounting hole 133 may be formed at an end of the connecting arm 132 away from the driving rod 131, a connecting groove 124 may be formed at a corresponding position of the condensing plate 120, a mounting hole 125 may be formed on a groove wall of the connecting groove 124, and a rotating shaft (not shown) may be provided to pass through the mounting hole 133 and the mounting hole 125, so as to rotatably connect the connecting arm 132 and the condensing plate 120. Specifically, the mounting hole 125 may be a kidney-shaped hole, so that the condensation plate 120 can be moved appropriately relative to the driving assembly 130, so that the rotation of the condensation plate 120 is more flexible.

Specifically, as shown in figures 6 and 7, the drive ram 131 is located on the side of the cigarette machine body 110 away from the first end 121 of the cold plate 120. When the first end 121 of the condensation plate 120 moves towards the center line direction of the air inlet 111, the corresponding area of the air inlet 111 is exposed, so that the oil smoke directly enters the range hood 100, the first end 121 of the condensation plate 120 faces the side where the user is located, that is, the side is located on the outer side of the range hood body 110, in other words, the first side of the range hood body 110 is the inner side, and the second side is the outer side. It can be appreciated that, because the blower system primary air inlet 111 disposed inside the cigarette machine body 110 is directed toward the outside of the cigarette machine body 110, less smoke enters the cigarette machine body 110 from the inside relative to the outside of the cigarette machine body 110. Through setting up drive push rod 131 in the inboard of cigarette machine body 110, can slow down the pollution of greasy dirt to drive push rod 131, both helped alleviateing user's clean burden, can guarantee the reliable operation of drive assembly 130 again, guaranteed range hood 100's oil absorption effect, promoted range hood 100's reliability. Specifically, the drive ram 131 is located inside the cigarette machine body 110, specifically inside the chassis 112.

Example three:

on the basis of any of the above embodiments, the third embodiment provides a range hood 100, wherein, as shown in fig. 8 and 9, the limiting component 140 comprises a limiting groove 141 and a limiting protrusion 144 located therein, wherein one of the limiting groove 141 and the limiting protrusion 144 is connected with the body 110 of the range hood, the other of the limiting groove 141 and the limiting protrusion 144 is connected with the first end 121 of the condensation plate 120, for example, the limiting groove 141 is connected with the body 110 of the range hood, and the limiting protrusion 144 is connected with the first end 121 of the condensation plate 120. The limiting protrusion 144 extends along the depth direction of the limiting groove 141, the limiting protrusion 144 can rotate in the limiting groove 141, and the limiting protrusion 144 can reciprocate along the length direction of the limiting groove 141. By rotating and reciprocating the limit protrusion 144 within the limit slot 141, a compact configuration may be utilized to ensure that the condensation plate 120 is able to rotate relative to the cigarette machine body 110 while limiting the direction of movement of the first end 121 of the condensation plate 120. Further, a connecting line direction of the first end 121 and the second end 122 of the condensation plate 120 is taken as a width direction of the range hood 100, and the limiting groove 141 extends along the width direction of the range hood 100, so that the first end 121 of the condensation plate 120 moves towards a center line direction of the air inlet 111 in a process that the second end 122 of the condensation plate 120 moves towards a direction away from the air inlet 111. One of the limiting groove 141 and the limiting bulge 144 is connected with the guide plate 113 of the cigarette machine body 110. Specifically, the limiting groove 141 may be a limiting through hole, or may be a limiting groove 141, as long as the moving direction of the limiting protrusion 144 can be limited.

Specifically, as shown in fig. 10, the limiting groove 141 includes a groove body 142 for limiting and a hollow connection portion 143 for connecting, so as to ensure reliable limiting and stable connection of the limiting groove 141. In addition, through adopting the connection structure of fretwork shape, reducible oil smoke passageway keeps out the wind area, reduces the air intake resistance, helps promoting range hood 100's smoking ability.

Example four:

on the basis of any of the above embodiments, the fourth embodiment provides a range hood 100, wherein as shown in fig. 6 and 7, the range hood 100 further includes a guide assembly 150 connected to the range hood body 110, the guide assembly 150 is rotatably connected to the second end 122 of the condensation plate 120 to guide the second end 122 of the condensation plate 120 to reciprocate along the length direction of the guide assembly 150, and the guide assembly 150 is matched with the limiting assembly 140 and the driving assembly 130, so that the stable movement of the condensation plate 120 can be protected, and the operational reliability of the range hood 100 is improved. Specifically, the guide assembly 150 includes a guide groove 151 and a guide post 152, the guide post 152 is disposed in the guide groove 151, the guide post 152 extends along the length direction of the guide groove 151, and the guide post 152 can reciprocate along the length direction of the guide groove 151. One of the guide channel 151 and the guide post 152 is attached to the cigarette machine body 110 and the other of the guide channel 151 and the guide post 152 is pivotally attached to the second end 122 of the cold plate 120, for example as shown in figures 4, 7 and 10, the guide channel 151 is attached to the chassis 112 of the cigarette machine body 110 and the guide post 152 is pivotally attached to the attachment station 126 at the second end 122 of the cold plate 120.

Example five:

on the basis of any of the above embodiments, the fifth embodiment provides a range hood 100, wherein, as shown in fig. 6 and 7, the range hood 100 further includes a first filter screen 160 covering at least a portion of the air inlet 111. When the first end 121 of the condensation plate 120 moves towards the center line direction of the air inlet 111, the corresponding area of the air inlet 111 can be exposed, the first filter screen 160 is arranged in the area, and the first end 121 of the condensation plate 120 can be gradually exposed in the process of moving towards the center line direction of the air inlet 111, and at the moment, the first end can enter the corresponding area of the air inlet 111 after being filtered by the first filter screen 160, so that the condensation oil drops in the oil smoke can be favorably intercepted, the rectification effect can be achieved, and the turbulent airflow is reduced.

Further, as shown in fig. 6, the range hood 100 further includes two second filter screens 170 located on one side of the condensation plate 120 facing the air inlet 111, as shown in fig. 10, the number of the second filter screens 170 may be two, and the two second filter screens 170 are located on two sides of the condensation plate 120 respectively, that is, located in the oil smoke passage, and can move along with the condensation plate 120 to perform functions of rectification, filtering, and the like, which is helpful for reducing turbulent airflow flowing through the oil smoke passage. Specifically, as shown in fig. 10, a mounting block 127 may be provided on the condensing plate 120, and a second screen 170 may be coupled to the mounting block 127. The second screen 170 and the mounting block 127 may extend from the first end 121 of the cold plate 120 to the second end 122 of the cold plate 120 to increase the active area of the second screen 170. Further, a part of the second filter screen 170 can extend into the casing 112 of the cigarette maker body 110 through the air inlet 111, and if the first filter screen 160 is disposed at the same time, an avoiding notch can be formed in the first filter screen 160 to avoid the second filter screen 170, so that smooth movement of the second filter screen 170 is ensured, the width of the first filter screen 160 does not need to be reduced, and the first filter screen 160 can be ensured to have a reliable filtering function.

The specific embodiment is as follows:

this embodiment provides a range hood 100. Fig. 1 to 4 show two smoking states of the range hood 100, and a freely movable condensation plate 120 is disposed at the bottom of the air inlet 111 at the middle part of the flow guide plate 113. As shown in fig. 1 and fig. 2, the condensation plate 120 is located inside the flow guide plate 113 in the initial state, and when the oil smoke is small, the passage between the periphery of the condensation plate 120 and the flow guide plate 113 is used for allowing the oil smoke to enter the range hood 100. In order to increase the negative pressure area and prevent the oil smoke at the periphery of the flow guide plate 113 from overflowing, the projection area of the condensation plate 120 is generally larger than that of the air inlet 111, so that when the oil smoke flows through the flow channel between the condensation plate 120 and the flow guide plate 113, the path of the oil smoke entering the interior of the cigarette machine body 110 cannot be directly communicated with the internal fan system, that is, the air inlet resistance at the front end of the fan system is increased. The large air inlet resistance at the front end is not beneficial to the working condition when the oil smoke is large, and the oil smoke is easy to overflow under the extreme environment.

In the embodiment of the present invention, as shown in fig. 3 and 4, when the oil smoke is large, the rear side (i.e., the second end 122) of the condensation plate 120 moves downward, and the front side (i.e., the first end 121) moves backward, and the first filter 160 around the condensation plate 120 is exposed. The condensing plate 120 moves backward and downward to move the negative pressure region downward, so that the oil smoke is more easily sucked into the range hood 100. In addition, the flow channel between the periphery of the condensing plate 120 and the guide plate 113 is widened, so that oil smoke can enter the fan system in a wider flow channel section, and the problem that the air inlet resistance at the front end is increased due to the fact that the direction of an airflow path is changed suddenly because the flow channel is too narrow is avoided. The front side of the condensing plate 120 moves backwards to make the air inlet 111 directly aim at the cooking bench oil smoke generating source, and the oil smoke directly enters the fan system. In addition, as shown in fig. 6 and 7, the second screen 170 at both sides of the condensing plate 120 moves down along with the condensing plate 120, and the first screen 160 and the second screen 170 have meshes to perform rectification, filtration, etc. functions, thereby reducing turbulent air flow.

As shown in fig. 6 and 7, to enable the cold plate 120 to be flipped downward, the present embodiment of the invention implements actuation using an actuation plunger 131, the actuation plunger 131 being mounted on the interior back side of the chassis 112 of the cigarette machine body 110 (i.e., the first side of the cigarette machine body 110). Because the main air inlet of the fan system faces the front side of the range hood 100 (i.e., the second side of the range hood body 110), the oil smoke entering from the rear side of the air inlet 111 is small, and the driving push rod 131 can be slowed down from the oil smoke pollution. As shown in fig. 10 and 12, the end of the push rod is provided with a curved connecting arm 132, and the end of the curved connecting arm 132 is connected to the connecting groove 124. The guide plate 113 is provided with a guide groove 151 at the rear side of the air inlet 111, the guide post 152 is matched with the guide groove 151, the guide post 152 can slide up and down on the guide groove 151, and the bottom of the guide post 152 is provided with a cylindrical boss rotatably connected with the connecting platform 126 at the back of the condensing plate 120. A limiting bulge 144 is arranged on the front side of the air inlet 111, the top of the limiting bulge 144 is arranged on the guide plate 113, and the lower part of the limiting bulge 144 is provided with an outward convex round table. The boss of the limiting protrusion 144 is connected with the elongated groove body 142 above the limiting groove 141 in a matching manner, the bottom of the limiting groove 141 is connected with the back of the condensing plate 120, and the limiting groove 141 restricts the condensing plate 120 to slide back and forth in front of the air inlet 111. The hollow-out shape of the stopper groove 141 reduces the wind shielding area.

As shown in fig. 6 and 7, when the driving push rod 131 drives the condensation plate 120, the guide posts 152 on the back of the condensation plate 120 restrict the moving path of the condensation plate 120, so that the condensation plate 120 moves up and down. The condensation plate 120 moves backward and backward while the front side of the condensation plate 120 moves backward along the constraint of the elongated slot body 142 above the limit slot 141. The first filter 160 is installed at a front side position of the air inlet 111, and the second filter 170 is installed at the rear mounting stage 127 of the condensing panel 120, so that the condensing panel 120 is turned down while the second filter 170 follows the downward movement.

In the embodiment of the invention, the condensation plate 120 at the bottom of the cigarette machine body 110 moves downwards, so that the negative pressure area moves downwards and the second filter screen 170 moves along with the negative pressure area, thereby reducing the air inlet resistance. In addition, the single motor linkage is used, so that the mechanism cost can be reduced. It is contemplated that conventional flat baffle 113 ohm-type smoke extractors may also be used with the condenser plate 120 flip open and close scheme provided by embodiments of the present invention.

In the description of the present specification, the terms "connect", "mount", "fix", and the like are to be understood in a broad sense, for example, "connect" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A range hood, characterized in that, range hood includes:

the cigarette machine body comprises an air inlet;

the condensation plate is positioned at the air inlet and comprises a first end and a second end which are opposite;

a drive assembly coupled to the cigarette machine body, the drive assembly capable of driving the second end of the condensation plate to rotate about the first end of the condensation plate; and

the smoke machine body is connected with the first end of the condensation plate through the limiting assembly, and the first end of the condensation plate can be guided to move towards the direction of the central line of the air inlet in the process that the second end of the condensation plate moves towards the direction far away from the air inlet through the limiting assembly.

2. The range hood of claim 1, wherein the hood body further comprises:

the air inlet is positioned at the end part of the shell; and

the guide plate is arranged around the air inlet;

the condensation plate is located outside the casing and comprises a condensation surface, and the area of the condensation surface is larger than the cross-sectional area of the flow passage of the air inlet.

3. The range hood of claim 1,

the driving assembly is rotatably connected with the condensation plate.

4. The range hood of claim 3, wherein the drive assembly comprises:

the driving push rod is connected with the cigarette machine body;

and one end of the bent connecting arm is connected with the driving push rod, and the other end of the bent connecting arm is rotatably connected with the condensing plate.

5. The range hood of claim 4,

the machine body comprising a first side and a second side facing away from each other, the first side of the machine body being distal from the first end of the condensation plate;

the drive ram is located on a first side of the cigarette machine body.

6. The range hood of claim 1, wherein the limit assembly comprises:

a limiting groove; and

the limiting protrusion is positioned in the limiting groove, extends along the depth direction of the limiting groove, can rotate in the limiting groove, and can move in a reciprocating manner along the length direction of the limiting groove;

one of the limiting groove and the limiting protrusion is connected with the cigarette machine body, and the other of the limiting groove and the limiting protrusion is connected with the first end of the condensation plate.

7. The range hood of claim 6,

the limiting groove comprises a groove body and a hollow-out connecting portion which are connected.

8. The range hood of any one of claims 1 to 7, further comprising:

the guide assembly is connected with the cigarette machine body and rotatably connected with the second end of the condensation plate, and the guide assembly can guide the second end of the condensation plate to reciprocate along the length direction of the guide assembly.

9. The range hood of any one of claims 1 to 7, further comprising:

a first filter screen covering at least a portion of the air intake, the first end of the condensing plate being movable toward a centerline direction of the air intake to avoid at least a portion of the first filter screen.

10. The range hood of any one of claims 1 to 7, further comprising:

the second filter screen, the second filter screen with the condensing panel is connected, the second filter screen is located the condensing panel orientation one side of air intake.