CN219083212U

CN219083212U - Fume exhauster

Info

Publication number: CN219083212U
Application number: CN202223205105.XU
Authority: CN
Inventors: 何立博
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-05-26
Anticipated expiration: 2032-11-30

Abstract

A range hood, comprising: the bottom of the fume collecting hood is provided with an air inlet; the smoke guide plate is at least partially positioned below the air inlet, is constrained on the smoke collecting cover in a manner of rotating around a left-right extending rotating axis, and is provided with a first side edge and a second side edge which are opposite, and the first side edge is positioned behind the second side edge when the smoke guide plate rotates to be basically horizontal along with the smoke guide plate; the upper part of the first connecting rod is positioned in the fume collecting hood, extends downwards from the position adjacent to the front side wall of the fume collecting hood, can rotate relative to the fume collecting hood around a left-right extending rotation axis adjacent to the upper end of the first connecting rod, and the lower end of the first connecting rod is in rotary connection with the position adjacent to the first side edge of the fume guiding plate; the second connecting rod is positioned in the fume collecting hood at the upper part, extends downwards from a position adjacent to the rear side wall of the fume collecting hood, can rotate relative to the fume collecting hood around a left-right extending rotation axis adjacent to the upper end of the second connecting rod, and is in rotary connection with the position adjacent to the second side edge of the fume guiding plate at the lower end of the second connecting rod so as to cross the first connecting rod.

Description

Fume exhauster

Technical Field

The utility model relates to kitchen air purifying equipment, in particular to a range hood.

Background

The range hood has become one of the indispensable kitchen appliances in modern families. The range hood works by utilizing the fluid dynamics principle, and the range hood sucks and discharges oil smoke through a centrifugal fan arranged in the range hood and filters part of grease particles by using a filter screen. The centrifugal fan comprises a volute, an impeller arranged in the volute and a motor for driving the impeller to rotate. When the impeller rotates, negative pressure suction is generated at the center of the fan, and oil smoke below the range hood is sucked into the fan and is collected by the volute after being accelerated by the fan to be guided to be discharged out of the room.

At present, the common range hood on the market comprises a top suction type range hood and a side suction type range hood, and the top suction type range hood has wider application due to the advantages of neatness, light weight, small occupied space and the like. The top-draft type range hood adopts the lampblack rising principle, a negative pressure area is generated right above a cooking bench, and naturally rising lampblack is generated during cooking and is exhausted.

In order to solve the above problems, chinese patent No. ZL200910096759.3 (grant publication No. CN 101514823B) discloses a range hood with a smoke guide plate, which comprises a body, a smoke collecting hood and a smoke guide plate, wherein the bottom of the smoke collecting hood is provided with an air inlet, the smoke guide plate is opposite to the air inlet and keeps a predetermined distance from the smoke collecting hood, so that a smoke channel for allowing smoke to pass through is formed between the smoke guide plate and the smoke collecting hood.

According to the range hood, the smoke guide plate is arranged below the air inlet, so that smoke flows to the air inlet from the gap between the edge of the smoke guide plate and the smoke collecting hood after contacting the smoke guide plate, and the smoke is promoted to enter the range hood, so that the smoke leakage phenomenon can be effectively reduced. However, since the smoke guide plate is fixed relative to the smoke collecting hood, the smoke guide plate lowers the negative pressure region to some extent, but the anti-interference performance is still needed to be improved when the door and window are opened or closed or a person walks through and other external interference airflows.

The Chinese patent with patent number ZL202121434314.4 (issued notice number CN 216790273U) discloses a range hood, which comprises a fume collecting hood and two fume guide plates, wherein the bottom of the fume collecting hood is open to form an air inlet, and the range hood is characterized in that: the range hood further comprises a movement mechanism for driving the smoke guide plate to move, and the movement mechanism comprises a driving mechanism and a transmission mechanism for transmitting output of the driving mechanism to the smoke guide plate, so that the smoke guide plate can be driven to pass through the air inlet to lift and a rotating shaft extending in the left-right direction to overturn relative to the smoke collecting hood. The movement mechanism further comprises a support fixed relative to the fume collecting hood, a guide groove assembly is arranged on the support, the guide groove assembly comprises a first guide groove extending longitudinally and linearly and a second guide groove extending longitudinally and bending, and the first guide groove and the second guide groove are mutually communicated; the transmission mechanism comprises a connecting frame, a first connecting rod and a second connecting rod, wherein the connecting frame is fixedly connected with the smoke guide plate, and is provided with a part capable of moving along the first guide groove and the second guide groove and another part capable of moving along the first guide groove; one end of the first connecting rod is rotationally connected with the bracket and driven to rotate by the driving mechanism, the other end of the first connecting rod is rotationally connected with one end of the second connecting rod, and the other end of the second connecting rod is rotationally connected with the connecting frame.

According to the range hood, the motion mechanism drives the smoke guide plate to lift and the rotating shaft extending around the left-right direction is overturned relative to the smoke collecting hood, so that the smoke guide plate is deformed into a side-suction mode or a front smoke baffle mode under certain cooking conditions, the distance of a smoke source is further shortened under the side-suction mode, the smoke is wrapped in the lower area of the smoke collecting hood from the source under the front smoke baffle mode, the smoke collecting range of the smoke collecting hood is further extended, and the smoke absorbing effect is improved.

Because some users select a three-hole stove or a four-hole stove, the three-hole stove is generally divided into two rows of stoves distributed along the front-back direction, and the distances between the stoves of different rows and the wall are different, and the transmission structure of the range hood determines that the front-back position of the smoke guide plate in the overturning process can only be changed in a small range, so that the cooker cannot exert the optimal oil-fume absorbing effect when being placed on the different stoves.

Disclosure of Invention

The utility model aims to solve the technical problem of providing the range hood for the state of the art, which can enlarge the smoke collecting area and the range of the front and rear positions of the smoke guide plate in the overturning process.

The technical scheme adopted for solving the technical problems is as follows: a range hood, comprising:

the bottom of the fume collecting hood is provided with an air inlet;

the smoke guide plate is restrained on the smoke collecting cover in a mode of rotating around a left-right extending rotating axis and is provided with a first side edge and a second side edge which are opposite, the smoke guide plate rotates along with the smoke guide plate to be in a basically horizontal state, and the first side edge is positioned behind the second side edge;

the method is characterized in that: the smoke guide plate is at least partially positioned below the air inlet, and the smoke guide plate further comprises:

the upper part of the first connecting rod is positioned in the fume collecting hood, extends downwards from a position adjacent to the front side wall of the fume collecting hood and can rotate relative to the fume collecting hood around a left-right extending rotation axis adjacent to the upper end of the first connecting rod, and the lower end of the first connecting rod is rotationally connected with the fume guiding plate adjacent to the first side edge of the fume guiding plate;

the upper part of the second connecting rod is positioned in the fume collecting hood, extends downwards from a position adjacent to the rear side wall of the fume collecting hood and can rotate relative to the fume collecting hood around a left-right extending rotation axis adjacent to the upper end of the second connecting rod, and the lower end of the second connecting rod is rotationally connected with the position adjacent to the second side edge of the fume guiding plate and is intersected with the first connecting rod.

By "adjacent the front side wall of the hood" is meant that the distance from the front side wall is less than the distance from the rear side wall between the front and rear side walls of the hood, or directly on the front side wall of the hood.

By "adjacent the rear side wall of the hood" is meant that the distance from the front side wall is greater than the distance from the rear side wall between the front and rear side walls of the hood, or directly on the rear side wall of the hood.

By "a location on the smoke-guiding plate adjacent to its first side edge" is meant that the distance from the first side edge is smaller than the distance from the second side edge between the first side edge and the second side edge of the smoke-guiding plate, or directly on the first side edge of the smoke-guiding plate.

By "a location on the smoke-guiding plate adjacent to its second side" is meant that the distance from the first side is greater than the distance from the second side, or directly on the second side of the smoke-guiding plate, between the first side and the second side of the smoke-guiding plate.

The first connecting rod and the second connecting rod which are intersected are used for restraining the smoke guide plate on the smoke collecting cover in a mode of rotating around a rotation axis extending leftwards and rightwards, and at least partially located below the air inlet, so that the smoke guide plate can be deformed into a side suction mode or a front smoke baffle mode under certain cooking conditions, when the front and rear smoke discharging heads are used, the smoke guide plate is located in the middle of the air inlet and is in a basically horizontal mode, when the front smoke discharging head is used only, the smoke guide plate can be backwards turned to be located at the rear side of the air inlet and is in a gradually forward inclined mode from top to bottom, the main negative pressure area can be downwards turned to be located at the front side of the air inlet and is in a gradually backward inclined mode from top to bottom, when the rear smoke discharging head is used only, the main negative pressure area can be downwards moved to the rear side of the smoke guide plate, when the front smoke guide plate is continuously turned forwards to a basically vertical mode, the negative pressure area can be prevented from escaping from the front, the lower edge of the smoke baffle plate can be enabled to be closer to the rear side of the air inlet, the smoke guide plate can be enabled to be in the same range as the smoke absorbing area, and the smoke absorbing range can not be enabled to be in the same as the smoke absorbing range, and the smoke absorbing range can not be in the smoke absorbing range.

Further designed, the upper end of the first connecting rod and the upper end of the second connecting rod are both rotationally connected with the fume collecting hood.

In order to make the last cavity of collection petticoat pipe bottom deeper, collection petticoat pipe include first cover body and connect in the second cover body of first cover body below, the bottom of the first cover body forms the collection cigarette region of indent, the second cover body is the frame form that vertically link up, and its internal surface upper portion is equipped with the support, the upper end of first connecting rod, the upper end of second connecting rod all with the support rotate to be connected, first connecting rod and second cover body coupling also can make second cover body and first connecting rod, second connecting rod modularization, more convenient equipment.

In order to further increase the range of the front-back position change in the overturning process, the length of the first connecting rod and the length of the second connecting rod are both larger than the length of the fume collecting hood in the front-back direction.

Further, the ratio of the length of the first link to the length of the second link is [1,0.7].

In order to collect oil conveniently, the smoke guide plate is provided with a front surface and a back surface, and the smoke guide plate rotates along with the smoke guide plate to be in a basically horizontal state, and the front surface of the smoke guide plate faces downwards and the back surface of the smoke guide plate faces upwards; the back of the smoke guide plate is provided with a first oil collecting groove at a position adjacent to the first side edge, an opening of the first oil collecting groove faces the second side edge of the smoke guide plate, the back of the smoke guide plate is provided with a second oil collecting groove at a position adjacent to the second side edge, and an opening of the second oil collecting groove faces the first side edge of the smoke guide plate, so that oil liquid drops of the smoke guide plate in the overturning process can be avoided.

In order to facilitate driving the first connecting rod and/or the second connecting rod to rotate, the fume collecting hood is provided with a driving mechanism for driving the first connecting rod and/or the second connecting rod to rotate.

Compared with the prior art, the utility model has the advantages that: the first connecting rod and the second connecting rod which are intersected are used for restraining the smoke guide plate on the smoke collecting cover in a mode of rotating around a rotation axis which extends leftwards and rightwards and at least partially positioned below the air inlet, so that the smoke guide plate can be deformed into a side suction mode or a front smoke baffle mode under a certain cooking working condition, when the front and rear rows of burners are used, the smoke guide plate is positioned in the middle of the air inlet and is in a basically horizontal mode, for example, when only the front row of burners are used, the smoke guide plate can be backwards turned to be positioned at the rear side of the air inlet and is in a gradually forward inclined mode from top to bottom, and the main negative pressure area is downwards moved to the front side edge of the plate, if only when the back-exhaust furnace end is used, the smoke guide plate can be turned forwards to the front side of the air inlet and gradually incline backwards from top to bottom, so that the main negative pressure area moves downwards to the rear side edge of the plate, and if the smoke guide plate is stir-fried, the smoke guide plate continues to be turned forwards to a basically vertical posture, so that the negative pressure area moves to the rear side of the plate, and the smoke can be prevented from escaping from the front, thereby not only enabling the lower edge of the smoke guide plate to be closer to a kitchen range and enabling the smoke collection area to be larger, but also increasing the change range of the front and rear positions of the smoke guide plate in the overturning process, and enabling the smoke guide plate to exert the best smoke absorption state under different use scenes.

Drawings

FIG. 1 is a cross-sectional view I (in a substantially horizontal position) of an embodiment of the present utility model;

FIG. 2 is a second cross-sectional view (in a gradually forward-inclined position from top to bottom) of an embodiment of the present utility model;

FIG. 3 is a third cross-sectional view (in a gradually backward inclined position from top to bottom) of an embodiment of the present utility model;

FIG. 4 is a cross-sectional view IV (in a substantially vertical position) of an embodiment of the utility model;

FIG. 5 is an enlarged view of FIG. 1 at A;

fig. 6 is an enlarged view as at B in fig. 1.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

As shown in fig. 1 to 6, is a preferred embodiment of the present utility model.

As shown in fig. 1 to 4, the range hood in the present embodiment includes main components such as a smoke collecting hood 1, a smoke guide plate 2, a first link 3, a second link 4, and a bracket 5.

As shown in fig. 1 to 4, the fume collecting hood 1 includes a first hood 11 and a second hood 12 connected to the lower side of the first hood 11, wherein the bottom of the first hood 11 forms a concave fume collecting area 111, the second hood 12 is a vertically penetrating frame-shaped fume collecting hood 1, and the bottom has an air inlet 121. The smoke guide plate 2 extends laterally and is rotatably constrained to the smoke collecting hood 1 about a laterally extending rotation axis, and the smoke guide plate 2 is at least partially positioned below the air inlet 121. The smoke-guiding plate 2 has opposite first and

second sides

2a, 2b, the first side 2a being located behind the second side 2b in a state in which the smoke-guiding plate 2 rotates to be substantially horizontal therewith.

The two brackets 5 are respectively arranged at the upper left end and the upper right end of the inner surface of the second cover body 12, and each bracket 5 extends back and forth. The left and right ends of the smoke guide plate 2 are respectively provided with a flanging 20. The cross components formed by the first connecting rod 3 and the second connecting rod 4 are two groups and are respectively arranged at the left end and the right end. In each set of crossing assemblies, the upper end of the first link 3 is rotatably connected to the front end of the bracket 5 by a first rotation shaft 61 extending from left to right, and the lower end of the first link 3 is rotatably connected to the flange 20 at a position adjacent to the first side 2a of the smoke guide plate 2 by a second rotation shaft 62 extending from left to right (see fig. 2). The upper end of the second connecting rod 4 is rotatably connected to the rear end of the bracket 5 through a third rotating shaft 63 extending from left to right, and the lower end of the second connecting rod 4 is rotatably connected to the flange 20 at a position adjacent to the second side edge 2b of the smoke guide plate 2 through a fourth rotating shaft 64 extending from left to right (see fig. 2).

In this embodiment, the "position on the smoke-guiding plate 2 adjacent to the first side 2a thereof" means that the distance from the first side 2a is smaller than the distance from the second side 2b between the first side 2a and the second side 2b of the smoke-guiding plate 2. By "a location on the smoke-guiding plate 2 adjacent to its second side edge 2 b" is meant that between the first side edge 2a and the second side edge 2b of the smoke-guiding plate 2, the distance from the first side edge 2a is greater than the distance from the second side edge 2b.

In the range hood of the present embodiment, the smoke guide plate 2 can be deformed into a side-draft shape or a front smoke baffle shape under a certain cooking condition, when the front two rows of the stoves are used, the smoke guide plate 2 is located in the middle of the air inlet 121 and is in a substantially horizontal posture (see fig. 1), when the front-row stoves are used only, the smoke guide plate 2 can be turned back to the rear side of the air inlet 121 and is in a gradually forward inclined posture from top to bottom (see fig. 2), when the rear-row stoves are used only, the main negative pressure area can be turned back to the front side of the air inlet 121 and is in a gradually backward inclined posture from top to bottom (see fig. 3), when the main negative pressure area is moved down to the rear side of the stoves, such as when the smoke guide plate 2 is fried, the negative pressure area is moved to the rear side of the stove, the smoke can be prevented from escaping from the front, the lower edge of the smoke guide plate 2 is enabled to be closer to the stove, the smoke area is enabled to be larger, when the main negative pressure area is enabled to be further enabled, when the smoke guide plate 2 is turned back to be in a gradually inclined backward posture from top to bottom (see fig. 3), and the smoke guide plate 2 can be used in the same range as the best condition as the smoke guide plate is in the front position.

The length of the first connecting rod 3 and the length of the second connecting rod 4 are both larger than the length of the fume collecting hood 1 in the front-rear direction. The ratio of the length of the first link 3 to the length of the second link 4 is [1,0.7].

As shown in fig. 5 and 6, the smoke-guiding plate 2 has a front surface and a back surface, and the smoke-guiding plate 2 is turned to be substantially horizontal with the smoke-guiding plate 2 with the front surface facing downward and the back surface facing upward. The back surface of the smoke-guiding plate 2 is provided with a first oil sump 21 at a position adjacent to the first side 2a, the opening of the first oil sump 21 being directed towards the second side 2b of the smoke-guiding plate 2. The back of the smoke guide plate 2 is provided with a second oil collecting groove 22 adjacent to the second side edge 2b, and an opening of the second oil collecting groove 22 faces the first side edge 2a of the smoke guide plate 2, so that oil can be conveniently collected, and oil can be prevented from dripping during overturning of the smoke guide plate 2.

A driving mechanism (not shown in the figure) for driving the first link 3 and/or the second link 4 to rotate is provided in the fume collecting hood 1. The drive mechanism (not shown) may be an electric motor or a hydraulic oil pump or an air pump.

In the description and claims of the present utility model, terms indicating directions, such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", etc., are used to describe various example structural parts and elements of the present utility model, but these terms are used herein for convenience of description only and are determined based on the example orientations shown in the drawings. Because the disclosed embodiments of the utility model may be arranged in a variety of orientations, the directional terminology is used for purposes of illustration and is in no way limiting, such as "upper" and "lower" are not necessarily limited to being in a direction opposite or coincident with the direction of gravity.

Claims

1. A range hood, comprising:

the bottom of the fume collecting hood (1) is provided with an air inlet (121);

a smoke guide plate (2) which is constrained on the smoke collecting cover (1) in a manner of rotating around a left-right extending rotation axis and is provided with a first side edge (2 a) and a second side edge (2 b) which are opposite, wherein the smoke guide plate (2) rotates to be in a basically horizontal state along with the smoke guide plate, and the first side edge (2 a) is positioned behind the second side edge (2 b);

the method is characterized in that: the smoke guide plate (2) is at least partially positioned below the air inlet (121), and further comprises:

the upper part of the first connecting rod (3) is positioned in the fume collecting hood (1), extends downwards from a position adjacent to the front side wall of the fume collecting hood (1) and can rotate relative to the fume collecting hood (1) around a left-right extending rotation axis adjacent to the upper end of the first connecting rod, and the lower end of the first connecting rod (3) is rotationally connected with the fume guiding plate (2) adjacent to the first side edge (2 a) of the fume guiding plate;

the upper part of the second connecting rod (4) is positioned in the fume collecting hood (1), extends downwards from a position adjacent to the rear side wall of the fume collecting hood (1) and can rotate relative to the fume collecting hood (1) around a left-right extending rotation axis adjacent to the upper end of the second connecting rod, and the lower end of the second connecting rod (4) is rotationally connected with the position adjacent to the second side edge (2 b) of the fume guiding plate (2) and is intersected with the first connecting rod (3).

2. The range hood of claim 1, wherein: the upper end of the first connecting rod (3) and the upper end of the second connecting rod (4) are rotationally connected with the fume collecting hood (1).

3. The range hood of claim 2, wherein: the smoke collecting cover (1) comprises a first cover body (11) and a second cover body (12) connected to the lower portion of the first cover body (11), an upwardly concave smoke collecting area (111) is formed at the bottom of the first cover body (11), the second cover body (12) is in a vertically through frame shape, a support (5) is arranged on the upper portion of the inner surface of the second cover body, and the upper end of the first connecting rod (3) and the upper end of the second connecting rod (4) are both connected with the support (5) in a rotating mode.

4. The range hood of claim 1, wherein: the length of the first connecting rod (3) and the length of the second connecting rod (4) are both larger than the length of the fume collecting hood (1) in the front-rear direction.

5. The range hood of claim 1, wherein: the ratio of the length of the first connecting rod (3) to the length of the second connecting rod (4) is [1,0.7].

6. The range hood according to any one of claims 1 to 5, wherein: the smoke guide plate (2) is provided with a front surface and a back surface, and the front surface of the smoke guide plate (2) faces downwards and the back surface faces upwards when the smoke guide plate (2) rotates to be basically horizontal along with the smoke guide plate; the back of the smoke guide plate (2) is provided with a first oil collecting groove (21) at a position adjacent to the first side (2 a), an opening of the first oil collecting groove (21) faces the second side (2 b) of the smoke guide plate (2), and the back of the smoke guide plate (2) is provided with a second oil collecting groove (22) at a position adjacent to the second side (2 b), and an opening of the second oil collecting groove (22) faces the first side (2 a) of the smoke guide plate (2).

7. The range hood according to any one of claims 1 to 5, wherein: the fume collecting hood (1) is provided with a driving mechanism for driving the first connecting rod (3) and/or the second connecting rod (4) to rotate.