CN110966638A

CN110966638A - Fume exhaust fan

Info

Publication number: CN110966638A
Application number: CN201811147012.1A
Authority: CN
Inventors: 王文博
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2018-09-29
Filing date: 2018-09-29
Publication date: 2020-04-07

Abstract

The invention discloses a range hood, which comprises a case and is characterized in that: the two sides of the bottom of the case are respectively provided with a first wing plate and a second wing plate, and the first wing plate and the second wing plate are respectively in rotating connection with the case through a rotating mechanism so that the first wing plate and the second wing plate can rotate in the vertical direction relative to the case. The wing plates which can rotate upwards and downwards are arranged on two sides of the bottom of the machine box, and can be turned into a straight shape or an inverted V shape according to the amount of oil smoke, so that the problems of no smoke collection and smoke leakage of the top-suction range hood are solved.

Description

Fume exhaust fan

Technical Field

The invention relates to kitchen equipment, in particular to a range hood.

Background

The range hood has become one of indispensable kitchen household electrical appliances in modern families, and the range hood generally comprises a top suction type range hood and a side suction type range hood, and the top suction type range hood has more and more extensive application due to the advantages of neatness, lightness, small occupied space and the like. The top-suction type range hood generally includes a fume collecting hood, a fan housing located on the fume collecting hood, and a volute, an impeller, and a motor for driving the impeller are installed in the fan housing.

A common top-suction type range hood, such as the top-suction type range hood disclosed in chinese patent with application number 201410315985.7, includes a smoke collecting hood, an air inlet arranged on the bottom surface of the smoke collecting hood, an oil collecting plate and a flow guide cover fixed right below the air inlet to form an air inlet channel with four sides with the bottom surface where the air inlet is located, the flow guide cover is arranged on the lower surface of the oil collecting plate; also as disclosed in chinese patent application No. 201710698018.7, a ceiling-mounted range hood with an intelligently-adjustable negative pressure region includes a housing, a wind cabinet, a guide plate and an oil receiving cup, the housing has an oil smoke collecting chamber with a lower opening, a top plate of the oil smoke collecting chamber is provided with a flow guide opening, the guide plate is matched with the oil smoke collecting chamber, and a gap between the circumferential direction of the guide plate and the circumferential direction wall of the oil smoke collecting chamber is a flow guide channel.

Although the range hood in the prior art can suck the oil smoke as much as possible through the arrangement of the flow guide cover or the flow guide plate, if the generated oil smoke is large in quantity or has external air flow disturbance (such as windowing or people walking back and forth), the oil smoke is easy to escape from the positions on the two sides of the smoke collection cover, so that the smoke suction efficiency of the range hood is reduced, and if the phenomenon that the oil smoke escapes is generated, the environment of a kitchen is easily affected, and the health of a user is also affected.

At present, the mode of forming an air curtain is commonly used for preventing oil smoke from escaping, for example, a range hood disclosed in the chinese patent with the application number of 201610083264.7 comprises a range hood body and is provided with a smoke inlet and a first air curtain part, the first air curtain part is arranged on the range hood body and is provided with a first air outlet, and air flow flowing out from the first air outlet forms an air curtain to prevent the oil smoke from diffusing outwards.

Although the range hood can prevent oil smoke from escaping to a certain degree, the existence of the air curtain reduces the rising speed of the oil smoke to a certain degree and reduces the oil smoke absorption effect.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a range hood capable of reducing smoke leakage aiming at the problems in the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a range hood, includes quick-witted case, its characterized in that: the two sides of the bottom of the case are respectively provided with a first wing plate and a second wing plate, and the first wing plate and the second wing plate are respectively in rotating connection with the case through a rotating mechanism so that the first wing plate and the second wing plate can rotate in the vertical direction relative to the case.

Preferably, each rotating mechanism comprises a wing plate ferrule, a first case ferrule, a second case ferrule and a shaft, the wing plate ferrule is arranged on one side of the corresponding wing plate facing the case, the first case ferrule and the second case ferrule are arranged on one side of the case facing the corresponding wing plate, the wing plate ferrule corresponds to the space between the first case ferrule and the second case ferrule, and the shaft penetrates through the first case ferrule, the wing plate ferrule and the second case ferrule to rotatably connect the case with each wing plate.

In order to prevent looseness, the end part of the shaft is also provided with a shaft plug.

Inside for guide oil smoke gas stream entering pterygoid lamina, first pterygoid lamina and second pterygoid lamina all are the structure of upwards sunken to constitute the collection smoke chamber jointly in first pterygoid lamina and second pterygoid lamina.

For avoiding the user to bump the head when using range hood, tip, the bottom surface that the second pterygoid lamina was kept away from to first pterygoid lamina upwards slope gradually and form first corner cut to the direction of keeping away from the second pterygoid lamina, tip, the bottom surface that the first pterygoid lamina was kept away from to the second pterygoid lamina upwards slope gradually and form the second corner cut.

In order to control the range hood conveniently, a control panel is arranged between the two wing plates and at the front side of the bottom of the case.

In order to facilitate the user to slightly look up for operation, the control panel is gradually inclined backwards from top to bottom.

Compared with the prior art, the invention has the advantages that: the wing plates which can rotate upwards and downwards are arranged on two sides of the bottom of the machine box, and can be turned into a straight shape or an inverted V shape according to the amount of oil smoke, so that the problems of no smoke collection and smoke leakage of the top-suction range hood are solved.

Drawings

FIG. 1 is a schematic view of a range hood according to an embodiment of the present invention;

fig. 2 is an exploded schematic view of a range hood according to an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion I of FIG. 2;

FIG. 4 is a schematic view of an initial state of the range hood according to the embodiment of the present invention;

fig. 5 is a schematic diagram illustrating a state of turning over a wing plate of the range hood according to the embodiment of the present invention.

Detailed Description

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

Referring to fig. 1 to 3, a range hood includes a cabinet 1, wing plates disposed at two sides of the bottom of the cabinet 1, and a control panel 3. For convenience of description, the terms "front", "rear", "left" and "right" refer to the orientation of the extractor hood relative to the user when in use.

The pterygoid lamina is including setting up respectively at the left first pterygoid lamina 21 of quick-witted case 1 and the second pterygoid lamina 22 of setting on quick-witted case 1 right side, and first pterygoid lamina 21 and second pterygoid lamina 22 all are the structure of upwards sunken to constitute collection smoke chamber 23 jointly in first pterygoid lamina 21 and second pterygoid lamina 22, the centre in collection smoke chamber 23 forms air intake (not shown), corresponds with the bottom of quick-witted case 1 for make the oil smoke enter into quick-witted case 1 in through the air intake. A smoke guide plate 24 is arranged in the smoke collection cavity 23 at a position corresponding to the air inlet and used for guiding the flow of the oil smoke before entering the air inlet and accelerating the oil smoke to enter the air inlet, and a filter screen can be arranged above the smoke guide plate 24.

The end part of the first wing plate 21 far away from the second wing plate 22 and the bottom surface thereof gradually incline upwards to form a first cutting angle 211 in the direction far away from the second wing plate 22; similarly, the end of the second wing 22 away from the first wing 21 has a bottom surface inclined gradually upward in a direction away from the first wing 21 to form a second chamfer 221. By providing the first chamfer 211 and the second chamfer 221, the user is prevented from hitting his head during use.

The first wing plate 21 and the second wing plate 22 are respectively connected with two sides of the bottom of the case 1 through a rotating mechanism. The rotation mechanism comprises a wing collar 41, a first casing collar 42, a second casing collar 43, a shaft 44 and a shaft plug 45. Taking the connection between the first wing plate 21 and the case 1 as an example, the wing plate ferrule 41 is fixed on the side of the first wing plate 21 facing the case 1, and the wing plate ferrule 41 and the first wing plate 21 may be integrated; the first casing collar 42 and the second casing collar 43 are fixed on the side of the casing 1 facing the first wing plate 21, the first casing collar 42 and the second casing collar 43 may be integrated with the casing 1, and the first casing collar 42 is located on the rear side of the second casing collar 43. The wing collar 41 corresponds between the first case collar 42 and the second case collar 43.

When the fixing device is installed, the wing plate ferrule 41 is firstly placed between the first case ferrule 42 and the second case ferrule 43, then the shaft 44 sequentially penetrates through the first case ferrule 42, the wing plate ferrule 41 and the second case ferrule 43, and then the shaft plug 45 is installed at the rear end of the shaft 44 to be fixed and prevented from loosening. The two wings can be driven manually or electrically to rotate in the vertical direction with respect to the cabinet 1.

Referring to fig. 4, when the range hood does not work, the two wing plates are in a horizontal state to form a straight shape; when the increase of oil smoke is sensed (an oil smoke sensor can be arranged on the range hood), referring to fig. 5, the two wing plates are turned downwards by taking the joint of the two wing plates and the case 1 as a rotating fulcrum, so that the smoke gathering area is arranged downwards, about 10cm below, the two wing plates form an inverted V shape and wrap the oil smoke area, and therefore, the smoke gathering range can be increased by utilizing the inverted V-shaped smoke gathering cavity, the oil smoke diffusion quantity is reduced, and the effect of preventing the oil smoke from leaking is achieved; when a reduction in smoke is sensed, the two wings are flipped up back to horizontal, see fig. 4. The two wing plates are respectively inserted into the rear of the control panel 3 in the rotating process.

The control panel 3 is arranged between the two wing plates and at the front side of the bottom of the case 1. The control panel 3 is inclined from top to bottom and gradually backward, which is beneficial for the user to slightly look up to operate the control panel 3. Can set up the LED lamp on control panel 3's the front surface, the LED lamp scintillation when the start, the LED lamp extinguishes when the shutdown, and in the range hood working process, the LED lamp extinguishes and goes on in turn, and the sensation of science and technology of exhibiting range hood directly perceivedly ignores range hood's noise from this.

Claims

1. The utility model provides a range hood, includes quick-witted case (1), its characterized in that: the novel multifunctional cabinet is characterized in that a first wing plate (21) and a second wing plate (22) are respectively arranged on two sides of the bottom of the cabinet (1), and the first wing plate (21) and the second wing plate (22) are respectively in rotating connection with the cabinet (1) through a rotating mechanism, so that the first wing plate (21) and the second wing plate (22) can rotate in the vertical direction relative to the cabinet (1).

2. The range hood of claim 1, wherein: each rotating mechanism comprises a wing plate ferrule (41), a first case ferrule (42), a second case ferrule (43) and a shaft (44), the wing plate ferrules (41) are arranged on one side, facing the case (1), of the corresponding wing plates, the first case ferrule (42) and the second case ferrule (43) are arranged on one side, facing the corresponding wing plates, of the case (1), the wing plate ferrules (41) correspond to the space between the first case ferrule (42) and the second case ferrule (43), and the shaft (44) penetrates through the first case ferrule (42), the wing plate ferrule (41) and the second case ferrule (43) to rotatably connect the case (1) with each wing plate.

3. The range hood of claim 2, wherein: the end part of the shaft (44) is also provided with a shaft plug (45).

4. The range hood according to any one of claims 1 to 3, wherein: the first wing plate (21) and the second wing plate (22) are both of an upward concave structure, so that a smoke collection cavity (23) is formed in the first wing plate (21) and the second wing plate (22) together.

5. The range hood according to any one of claims 1 to 3, wherein: the end part and the bottom surface of the first wing plate (21) far away from the second wing plate (22) gradually incline upwards to form a first cutting angle (211) in the direction far away from the second wing plate (22), and the end part and the bottom surface of the second wing plate (22) far away from the first wing plate (21) gradually incline upwards to form a second cutting angle (221) in the direction far away from the first wing plate (21).

6. The range hood according to any one of claims 1 to 3, wherein: a control panel (3) is arranged between the two wing plates and at the front side of the bottom of the case (1).

7. The range hood of claim 6, wherein: the control panel (3) is inclined from top to bottom and gradually backwards.