CN220506866U

CN220506866U - Fume exhauster

Info

Publication number: CN220506866U
Application number: CN202322227571.6U
Authority: CN
Inventors: 马瑞敏; 彭臣西
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2023-08-17
Filing date: 2023-08-17
Publication date: 2024-02-20
Anticipated expiration: 2033-08-17

Abstract

The utility model discloses a range hood, which comprises a shell, a fan frame arranged on the shell and a fan arranged in the fan frame, wherein the front side of the shell is open, and a first panel and a second panel are arranged on the front side of the shell; the fan is a double air inlet fan, and the axis of the fan extends along the front-back direction; the first and second panels are capable of being in a closed state and an open state: in a closed state, the first and second panels close the housing front side; when the fan is in an open state, the first panel opens a first air inlet at a position corresponding to the front side of the shell, the second panel opens a second air inlet at a position corresponding to the front side of the shell, the first air inlet and the second air inlet are arranged at intervals up and down, a main air inlet channel is formed between the first air inlet and the front side of the fan, and an auxiliary air inlet channel is formed between the second air inlet and the rear side of the fan.

Description

Fume exhauster

Technical Field

The utility model relates to a lampblack purifying device, 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 utility model discloses a range hood according to China with the application number of 20192149390. X, which comprises a shell and a panel positioned at the front side of the shell, wherein an air inlet is formed in the panel, the range hood further comprises main smoke baffle plates which can rotate relative to the shell to open or close the air inlet, side smoke baffle plates driven by the main smoke baffle plates are respectively arranged at the left side and the right side of the shell, when the main smoke baffle plates are closed, the side smoke baffle plates are positioned at a first position, at the moment, the side smoke baffle plates are folded and contained in the shell, and when the main smoke baffle plates are opened, the side smoke baffle plates are positioned at a second position, at the moment, the side smoke baffle plates are unfolded at the left side and the right side of the main smoke baffle plates.

The smoke baffle of the range hood is arranged in the middle of the panel assembly, and compared with the range hood with the air inlet at the bottom of the panel assembly, the range hood is far away from the burner, the smoke is easy to run in the using process, and the better smoking effect cannot be achieved; in addition, the panels on the outer surface of the housing are typically two or three pieces of glass, but only one piece of glass may be opened and allow for the ingress of oil smoke, resulting in low panel utilization.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a range hood for improving the fume suction efficiency aiming at the defects in the prior art.

The technical scheme adopted for solving the technical problems is as follows: the range hood comprises a shell, a fan frame arranged on the shell and a fan arranged in the fan frame, wherein the front side of the shell is open, and a first panel and a second panel are arranged on the front side of the shell; the method is characterized in that:

the fan is a double air inlet fan, and the axis of the fan extends along the front-back direction;

the first and second panels are capable of being in a closed state and an open state:

in a closed state, the first and second panels close the housing front side;

when the fan is in an open state, the first panel opens a first air inlet at a position corresponding to the front side of the shell, the second panel opens a second air inlet at a position corresponding to the front side of the shell, the first air inlet and the second air inlet are arranged at intervals up and down, a main air inlet channel is formed between the first air inlet and the front side of the fan, and an auxiliary air inlet channel is formed between the second air inlet and the rear side of the fan.

Through making two panels all can open and close, form main air inlet passageway and supplementary air inlet passageway, when the oil smoke is concentrated too big, effectively utilized two air intakes of fan, improve oil smoke absorption efficiency.

Preferably, the first air inlet is near the top of the shell, and the second air inlet is near the bottom of the shell.

Preferably, the ventilation area of the first air inlet is larger than that of the second air inlet, so that the inlet cross section area of the auxiliary air inlet channel is smaller, and lampblack can be quickly and effectively sucked into the auxiliary air inlet channel.

Preferably, the first panel is rotatably connected with the housing and can be turned over relative to the housing.

Further, in order to facilitate the turnover of the first panel, the range hood further comprises a motion mechanism, the motion mechanism comprises a transmission mechanism, the transmission mechanism comprises a first gear, a connecting rod and a rocker, the first gear is rotationally arranged in the shell, one end of the connecting rod is eccentrically and rotationally connected with the first gear, the other end of the connecting rod is rotationally connected with the rocker, one end of the rocker is rotationally connected with the shell, and the other end of the rocker is fixed with the first panel;

the motion mechanism further comprises a driving mechanism for driving the first gear to rotate.

Preferably, the second panel is translatable relative to the housing along a front side of the housing.

According to one aspect of the utility model, the second panel is linked with the first panel; the transmission mechanism further comprises a second gear, a third gear, a first synchronous belt, a second synchronous belt and a connecting piece, wherein the second gear and the third gear are rotationally arranged in the shell, the driving mechanism drives the second gear to rotate, the second gear and the third gear are connected through the first synchronous belt, the first gear and the second gear are connected through the second synchronous belt and can be driven to rotate by the second gear, and the connecting piece is respectively fixed with the first synchronous belt and the second panel. Therefore, the composite motion of driving two panels by one power source is realized, and the motion mechanism is simplified.

According to another aspect of the utility model, the second panel is interlocked with the first panel; the transmission mechanism further comprises a rack, the rack is fixed on one side, facing the inside of the shell, of the second panel, the rack extends upwards to form the second panel, and the first gear is meshed with the rack. Therefore, the composite motion of driving two panels by one power source is realized, and the motion mechanism is simplified.

Further, in order to facilitate the driving mechanism to drive the first gear to rotate, the transmission mechanism further comprises a second gear and a third gear, the driving mechanism drives the second gear to rotate, the second gear is meshed with the third gear, and the third gear is meshed with the first gear.

Compared with the prior art, the utility model has the advantages that: by enabling the two panels to be opened and closed, a main air inlet channel and an auxiliary air inlet channel are formed, when the oil smoke is too thick, the two air inlets of the fan are effectively utilized, and the smoke discharging efficiency is improved; the inlet section area of the auxiliary air inlet channel is smaller, so that the oil smoke can be quickly and effectively sucked into the auxiliary air inlet channel; and one power source drives the two panels to move in a combined way, so that a movement mechanism is simplified.

Drawings

Fig. 1 is a schematic view showing a closed state of a range hood according to a first embodiment of the present utility model;

fig. 2 is a schematic view of a casing of a hidden part of a range hood in a closed state according to a first embodiment of the present utility model;

fig. 3 is a schematic view of a movement mechanism of a range hood in a closed state according to a first embodiment of the present utility model;

fig. 4 is a schematic view showing an opened state of a range hood according to a first embodiment of the present utility model;

fig. 5 is a schematic view of a hidden part of a casing in an opened state of a range hood according to a first embodiment of the present utility model;

fig. 6 is a sectional view showing an opened state of a range hood according to a first embodiment of the present utility model;

fig. 7 is a schematic view of a closed hidden part of a casing of a range hood according to a second embodiment of the present utility model;

fig. 8 is a schematic view of a movement mechanism of a range hood in a closed state according to a second embodiment of the present utility model.

Detailed Description

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

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for purposes of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and because the disclosed embodiments of the present utility model may be arranged in different orientations, these directional terms are merely for illustration and should not be construed as limitations, such as "upper", "lower" are not necessarily limited to orientations opposite or coincident with the direction of gravity. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly.

Example 1

Referring to fig. 1 to 6, a range hood comprises a housing 1, a fan frame 2 arranged on the housing 1, and a fan 3 arranged in the fan frame 2, wherein the fan 3 is a double air inlet fan, and the axis of the fan 3 extends along the front-back direction.

The front side of the shell 1 is open, the front side of the shell 1 is provided with a first panel 41 and a second panel 42, when in a closed state, the first panel 41 and the second panel 42 close the front side of the shell 1, and when in an open state, the first panel 41 opens the first air inlet 11 at a corresponding position, and the second panel 42 opens the second air inlet 12 at a corresponding position. The first air inlet 11 and the second air inlet 12 are arranged at intervals up and down, the first air inlet 11 is close to the top of the shell 1, the second air inlet 12 is close to the bottom of the shell 1, and the ventilation area of the first air inlet 11 is larger than that of the second air inlet 12.

When switching from the closed state to the open state, the first panel 41 performs a tilting motion with respect to the housing 1, and the second panel 42 translates upward with respect to the front side surface of the housing 1. When the air conditioner is opened, the first air inlet 11 is a main air inlet, the second air inlet 12 is an auxiliary air inlet, a main air inlet channel Q1 is formed between the first air inlet 11 and the front side of the fan 3, and an auxiliary air inlet channel Q2 is formed between the second air inlet 12 and the rear side of the fan 3. Most of the oil smoke enters the shell 1 through the first air inlet 11 and is discharged through the fan 3, and a small part of the oil smoke enters the shell 1 through the second air inlet 12 and is discharged through the fan 3, as shown by arrows in fig. 6. The second air inlet 12 is closer to the smoke source, the cross section area of the second air inlet 12 is smaller, and according to the relation between the fluid speed and the cross section area, the oil smoke can enter the second air inlet 12 quickly, and the second air inlet 12 is matched with the first air inlet 11, so that the oil smoke escaping phenomenon can be effectively reduced.

The range hood further comprises a motion mechanism for driving the first panel 41 and the second panel 42 to be linked, wherein the motion mechanism comprises a driving mechanism 51 and a transmission mechanism, and the transmission mechanism comprises a first gear 521, a second gear 522, a third gear 523, a connecting rod 524, a rocker 525, a first synchronous belt 526, a second synchronous belt 527 and a connecting piece 528. The driving mechanism 51 may be a motor, and is configured to drive the second gear 522 to rotate, where the second gear 522 is connected to the third gear 523 by a first synchronous belt 526, the second gear 522 is connected to the first gear 521 by a second synchronous belt 527, one end of the connecting rod 524 is eccentrically and rotatably connected to the first gear 521, the other end of the connecting rod 524 is rotatably connected to the rocker 525, two ends of the rocker 525 are rotatably connected to the housing 1 and fixed to the first panel 411, and a connection between the rocker 525 and the housing 1 is a rotation center of the first panel 41. A panel bracket 411 may be disposed on a side of the first panel 41 facing the inside of the housing 1, and the rocker 525 is fixed to the panel bracket 411. The second gear 522, the third gear 523, and the first gear 521 are rotatably provided in the housing 1, and the rotation axis extends in the left-right direction.

Therefore, when the driving mechanism 51 is started, the second gear 522 drives the third gear 523 and the first gear 521 to rotate respectively, so that the first gear 521 drives the connecting rod 524 to move, and the connecting rod 524 drives the rocker 525 to rotate, thereby realizing the overturning motion of the first panel 41. Meanwhile, since the connecting piece 528 is arranged on the first synchronous belt 526 between the second gear 522 and the third gear 523, the connecting piece 528 is fixed with the second panel 42, when the second gear 522 rotates, the first synchronous belt 526 is driven to circularly translate around the second gear 522 and the third gear 523, and the connecting piece 528 can be driven to translate, so that the second panel 42 is driven to translate.

By interlocking the first panel 41 and the second panel 42, the movement mechanism can be simplified, and alternatively, the first panel 41 and the second panel 42 can be driven independently.

Example two

Referring to fig. 7 and 8, the difference from the first embodiment is that the timing belts and the connecting members are not provided in the transmission mechanism, but the rack 529 is provided. The second gear 522 is meshed with the third gear 523, and the third gear 523 is meshed with the first gear 521. The connecting rod 524 and the rocker 525 are connected in the same manner as in the first embodiment. Alternatively, the first gear 521 may be directly driven without the second gear 522 and the second gear 523, or only the second gear 522 may be provided.

A rack 529 is fixed to a side of the second panel 42 facing into the housing 1, and the rack 529 extends upward beyond the second panel 42, and the first gear 521 can be engaged with the rack 529.

Therefore, when the driving mechanism 51 is started, the second gear 522 and the third gear 523 drive the first gear 521 to rotate, so as to drive the connecting rod 524 to move, and the connecting rod 524 drives the rocker 525 to rotate, so that the overturning motion of the first panel 41 can be realized. Meanwhile, as the first gear 521 and the rack 529 are meshed, the rotation of the first gear 521 can also enable the rack 529 to translate, and further enable the second panel 42 to translate.

Claims

1. The range hood comprises a shell (1), a fan frame (2) arranged on the shell (1) and a fan (3) arranged in the fan frame (2), wherein the front side of the shell (1) is open, and a first panel (41) and a second panel (42) are arranged on the front side of the shell (1); the method is characterized in that:

the fan (3) is a double air inlet fan, and the axis of the fan (3) extends along the front-back direction;

the first panel (41) and the second panel (42) can be in a closed state and an open state:

in the closed state, the first panel (41) and the second panel (42) close the front side of the housing (1);

when in an open state, the first panel (41) opens a first air inlet (11) at a position corresponding to the front side of the shell (1), the second panel (42) opens a second air inlet (12) at a position corresponding to the front side of the shell (1), the first air inlet (11) and the second air inlet (12) are arranged at intervals up and down, a main air inlet channel (Q1) is formed between the first air inlet (11) and the front side of the fan (3), and an auxiliary air inlet channel (Q2) is formed between the second air inlet (12) and the rear side of the fan (3).

2. The range hood of claim 1, wherein: the first air inlet (11) is close to the top of the shell (1), and the second air inlet (12) is close to the bottom of the shell (1).

3. The range hood of claim 2, wherein: the ventilation area of the first air inlet (11) is larger than that of the second air inlet (12).

4. The range hood of claim 1, wherein: the first panel (41) is rotatably connected with the housing (1) and can turn over relative to the housing (1).

5. The range hood of claim 4, wherein: the range hood further comprises a motion mechanism, the motion mechanism comprises a transmission mechanism, the transmission mechanism comprises a first gear (521), a connecting rod (524) and a rocker (525), the first gear (521) is rotationally arranged in the shell (1), one end of the connecting rod (524) is eccentrically and rotationally connected with the first gear (521), the other end of the connecting rod (524) is rotationally connected with the rocker (525), one end of the rocker (525) is rotationally connected with the shell (1), and the other end of the rocker (525) is fixed with the first panel (41);

the movement mechanism further comprises a driving mechanism (51) for driving the first gear (521) to rotate.

6. The range hood of claim 5, wherein: the second panel (42) is translatable relative to the housing (1) along a front side of the housing (1).

7. The range hood of claim 6, wherein: the second panel (42) is linked with the first panel (41); the transmission mechanism further comprises a second gear (522), a third gear (523), a first synchronous belt (526), a second synchronous belt (527) and a connecting piece (528), the second gear (522) and the third gear (523) are rotationally arranged in the shell (1), the driving mechanism (51) drives the second gear (522) to rotate, the second gear (522) and the third gear (523) are connected through the first synchronous belt (526), the first gear (521) and the second gear (522) are connected through the second synchronous belt (527) and can be driven to rotate by the second gear (522), and the connecting piece (528) is respectively fixed with the first synchronous belt (526) and the second panel (42).

8. The range hood of claim 6, wherein: the second panel (42) is linked with the first panel (41); the transmission mechanism further comprises a rack (529), the rack (529) is fixed on one side, facing the inside of the shell (1), of the second panel (42), the rack (529) extends upwards to form the second panel (42), and the first gear (521) is meshed with the rack (529).

9. The range hood of claim 8, wherein: the transmission mechanism further comprises a second gear (522) and a third gear (523), the driving mechanism (51) drives the second gear (522) to rotate, the second gear (522) is meshed with the third gear (523), and the third gear (523) is meshed with the first gear (521).

10. The range hood of claim 1, wherein: the second panel (42) is translatable relative to the housing (1) along a front side of the housing (1).