CN218915037U

CN218915037U - Switching structure of range hood and range hood using same

Info

Publication number: CN218915037U
Application number: CN202222216072.2U
Authority: CN
Inventors: 朱旭彪; 贺峰; 何立博; 施旭娜
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2023-04-25
Anticipated expiration: 2032-08-22

Abstract

The utility model discloses a switching structure of a range hood and the range hood using the switching structure, wherein the switching structure comprises a switching piece and a fan cover arranged below a fan system of the range hood, the switching piece is arranged below the fan cover, an air inlet is formed in the fan cover, the rear side of the switching piece and the fan cover are tightly attached to an installation foundation outside the range hood, the switching piece and the fan cover are connected through the installation structure, the switching piece and the fan cover are detachably connected with each other at the front side of the air inlet, and the switching piece and the fan cover are also detachably connected with each other at the left side and the right side or the rear side of the air inlet.

Description

Switching structure of range hood and range hood using same

Technical Field

The utility model relates to an oil smoke purifying device, in particular to an adapting structure of a range hood and the range hood using the adapting structure.

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.

In order to reduce noise, there is a ceiling fan system installed in a ceiling, whereby the fan system is located far from the human ear as a noise source, and a cabinet space is saved, so that the range hood of this type is becoming popular. The utility model discloses a range hood disclosed in Chinese patent with application number 201821517326.1, which comprises a smoke collecting hood, a centrifugal fan and a flow guide channel arranged between the smoke collecting hood and the centrifugal fan, wherein the centrifugal fan is arranged at the top of the range hood; the guide channel comprises a host channel and a guide cover connected with the host channel, the range hood can also comprise a shell connected between the host channel and the centrifugal fan, the guide cover is positioned in the shell, and a noise reduction cavity is formed between the outer surface of the guide cover and the inner surface of the shell.

Because the installation form of the whole machine attached to the wall surface (comprising the smoke tube and the fan platform) of the conventional ceiling type range hood and the installation space limitation caused by the ceiling and the cabinet are provided with a plurality of design pain points:

1. installation problems: in the link of maintenance and installation after maintenance of the range hood, the hands of service personnel or a tool for installing and fixing are difficult to extend into the back wall-sticking part;

2. sealing oil leakage prevention problem: conventional mounting methods can cause oil stains to ooze out of the crevices and contaminate walls or cabinets.

Disclosure of Invention

The first technical problem to be solved by the utility model is to provide a switching structure of a range hood, which can be conveniently and rapidly disassembled and maintained.

The second technical problem to be solved by the utility model is to provide a range hood with the switching structure.

The technical scheme adopted by the utility model for solving the first technical problem is as follows: the utility model provides a switching structure of range hood, includes the adaptor and is used for setting up the fan lid in the fan system below of range hood, the adaptor sets up under the fan lid, be formed with the air intake on the fan lid, its characterized in that: the rear side of the adapter and the fan cover is tightly attached to an external installation foundation of the range hood, the adapter and the fan cover are connected through an installation structure, the front sides of the adapter and the fan cover, which are positioned at the air inlet, are detachably connected, and the left side and the right side or the rear side of the adapter and the fan cover, which are positioned at the air inlet, are also detachably connected.

The side surfaces of the adapter and the fan cover are detachably connected and installed, so that disassembly, assembly and maintenance can be conveniently and rapidly realized.

For avoiding the junction pressure release of adaptor and fan lid and accepting the greasy dirt that the fan lid flowed down, the adaptor includes the adaptor main part and sets up the connecting portion at adaptor main part top, the connecting portion is annular, connecting portion top undercut is formed with leads the oil groove, the bottom of fan lid inserts in leading the oil groove.

According to one aspect of the utility model, the mounting structure comprises a first fastener and a buckle, the front side of the connecting part is fixed with the fan cover through the first fastener, and the rear side of the connecting part is fixed with the fan cover through the buckle.

Further, the first fastener penetrates through the connecting portion and the front side wall of the fan cover, which is located at the air inlet, from bottom to top. Therefore, the direction of the first fastening piece is consistent with the matching direction of the adapter piece and the fan cover, and the installation structure is more reliable.

Further, the position that the connecting portion supplies first fastener to pass upwards extends and is formed with the erection column, the erection column is higher than the bottom surface that leads the oil groove to raise the mating surface, guarantee under the oil mass of conventional operating mode, can not leak the greasy dirt from the installation gap.

According to another aspect of the utility model, the mounting structure comprises a buckle and a buckle, the front side of the connecting part is fixed with the fan cover through the buckle, and the rear side of the connecting part is fixed with the fan cover through the buckle.

According to another aspect of the utility model, a chute is arranged on one of the outer surfaces of the front and rear side walls of the fan cover at the air inlet and the front and rear sides of the connecting part, a boss is arranged on the other one of the outer surfaces of the front and rear side walls of the fan cover at the air inlet and the front and rear sides of the connecting part, and the boss is in sliding connection with the chute.

Further, in order to make a certain margin in the up-down direction during installation, the chute has a certain inclination in the up-down direction, so that the installation is convenient.

According to another aspect of the present utility model, the mounting structure includes second fasteners passing laterally through the connection and the fan cover at the front and left and right sides, respectively, to secure the fan frame and the adapter.

Further, rectifying plates are arranged on the inner side of the adapter body, and extend to the front side and the rear side in the adapter body. Therefore, the sucked oil smoke fluid is smoother, and the oil smoke suction efficiency is improved.

Further, in order to be convenient for guide the greasy dirt in the oil guiding groove downwards, the breach has been seted up on the inner peripheral wall of connecting portion, the breach will lead oil groove and the inboard intercommunication of adaptor main part.

In order to further improve the sealing performance, the mounting structure further comprises a sealing gasket arranged at the joint of the fan cover and the adapter.

The utility model solves the second technical problem by adopting the technical proposal that: a range hood, characterized in that: the switching structure of the range hood is applied, the range hood further comprises a fan frame, an air inlet assembly and a connecting pipeline, wherein the fan frame is used for arranging a fan system, the connecting pipeline is connected between the air inlet assembly and a fan cover, and the fan cover is a part at the bottom of the fan frame.

Further, the fan frame is used for being installed in the suspended ceiling, and the connecting pipeline is a hose, so that the whole range hood can be more conveniently installed through the adapter and the hose.

Compared with the prior art, the utility model has the advantages that: the disassembly and assembly of the adapter can be conveniently and rapidly realized, and the maintenance is convenient; the adapter is provided with a reasonable oil guide channel, so that oil stains can flow down according to an expected route to prevent exudation; a sealing gasket is arranged between the fan cover and the adapter, so that the sealing performance of the joint is improved; the adapter is provided with the rectification board, so that the sucked oil smoke fluid is smoother, and the oil smoke suction efficiency is improved.

Drawings

Fig. 1 is a schematic view of a range hood according to an embodiment of the present utility model;

fig. 2 is a schematic view showing an exploded structure of a fan frame and an adaptor of the range hood according to the embodiment of the present utility model;

fig. 3 is a schematic view of an adapting structure of a range hood according to a first embodiment of the present utility model;

fig. 4 is a cross-sectional view showing an adapter structure of a range hood according to a first embodiment of the present utility model;

fig. 5 is a schematic view of a fan cover of an adapter structure of a range hood according to a first embodiment of the present utility model;

fig. 6 is a schematic view of an adaptor structure of a range hood according to a first embodiment of the present utility model;

fig. 7 is a schematic view of an adapting structure of a range hood according to a second embodiment of the present utility model;

fig. 8 is a cross-sectional view of an adapter structure of a range hood according to a second embodiment of the present utility model;

FIG. 9 is an enlarged schematic view of portion I of FIG. 8;

fig. 10 is a schematic view of a fan cover of an adapter structure of a range hood according to a second embodiment of the present utility model;

fig. 11 is a schematic view illustrating an adapting structure of a range hood according to a third embodiment of the present utility model;

fig. 12 is a cross-sectional view illustrating an adapter structure of a range hood according to a third embodiment of the present utility model;

fig. 13 is a schematic view of an adaptor structure of a range hood according to a third embodiment of the present utility model;

fig. 14 is a schematic view of a fan cover of an adapter structure of a range hood according to a third embodiment of the present utility model;

fig. 15 is a schematic view of an adapting structure of a range hood according to a fourth embodiment of the present utility model;

fig. 16 is a cross-sectional view of an adapter structure of a range hood according to a fourth embodiment of the present utility model;

fig. 17 is an enlarged schematic view of the portion ii of fig. 16.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions.

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.

Referring to fig. 1 and 2, a range hood comprises a fan frame 1 and an adapter 2 arranged at the bottom of the fan frame 1, wherein a fan system (not shown) is arranged in the fan frame 1, the fan frame 1 and the fan system are installed in a kitchen suspended ceiling, the fan system is arranged horizontally, and an air inlet of the fan system is downward. The structure below the adaptor 2 comprises a connecting pipeline 100 and an air inlet assembly 200, etc., wherein the connecting pipeline 100 is connected between the adaptor 2 and the air inlet assembly 200, and the forms of the connecting pipeline 100 and the air inlet assembly 200 are not limited, for example, see the prior application of the applicant, such as China patent application numbers 202122678616.2, 202122675881.5, 202110475152.7, etc. Preferably, the connecting duct 100 is a hose.

When the range hood is installed, the rear side of the range hood is attached to a wall, and the whole range hood is attached to the wall surface, so that the advantages of: 1. the depth between the fan platform and the lower inlet of the suspended ceiling smoke machine can be smaller, so that the occupied space in the cabinet is saved, and a user can store dishes or other kitchen utensils by using the space; 2. the appearance is light and thin, and is more concise and beautiful. But this brings about a problem of inconvenient installation. The scheme of the utility model is detailed below to solve the problem of inconvenient disassembly and assembly.

Example 1

Referring to fig. 3 to 6, the fan frame 1 includes a fan cover 11 located at the bottom, an air inlet 12 is formed on the fan cover 11, in an installed state, the air inlet 12 is formed at a position close to the rear side of the fan cover 11, the whole adapter 2 is in a hollow shape, such as a preferably approximately cuboid, the bottom in the left-right direction is connectable with a pipeline, particularly a hose, the top is connected with the fan cover 11, the bottom opening of the adapter 2 is formed as an inlet 21, the top opening of the adapter 2 is formed as an outlet 22, and the outlet 22 corresponds to the air inlet 12, so that the oil smoke coming from below the adapter 2 can enter the fan frame 1. The rear sides of the fan cover 11 and the adaptor 24 are adhered to a wall surface (a mounting base of the exterior of the range hood).

The adaptor 2 includes an adaptor body 23 and a connecting portion 24 disposed on the top of the adaptor body 23, where the connecting portion 24 is annular, and the adaptor body 23 and the connecting portion 24 may be separate components connected to each other to form an integral or integrally formed structure. The inlet 21 is formed in the adaptor body 23, and the outlet 22 is formed in the connection portion 24. The connection portion 24 may be in a circumferentially protruded state with respect to the adaptor body 23, i.e., the outer diameter of the connection portion 24 is larger than the adaptor body 23.

The connection portion 24 and the fan cover 11 are mounted by a mounting structure. The fan cover 11, the adapter 2 and the mounting structure described above constitute an adapter structure. In the present embodiment, the mounting structure includes a first fastener 31 and a buckle 32, wherein the front side of the connection portion 24 is fixed to the fan cover 11 by the first fastener 31, such as a screw, and the rear side of the connection portion 24 is fixed to the fan cover 11 by the buckle 32. The top of the connecting portion 24 is recessed downwards to form an annular oil guiding groove 26, and the longitudinal section of the oil guiding groove 26 is U-shaped.

The bottom of the fan cover 11 is inserted into the oil guide groove 26, the first fastening piece 31 passes through the connecting part 24 from bottom to top, and the front side wall of the fan cover 11, which is positioned at the air inlet 12, is consistent with the matching direction of the adapter 2 and the fan cover 11, and the installation structure is more reliable. The mating surface of the first fastener 31 (the surface of the fan cover 11 and the connecting portion 24 which are fastened by the first fastener 31) is higher than the bottom surface (oil dripping surface) of the oil guiding groove 26, so that the mounting column 241 can be formed by extending upwards at the position of the connecting portion 24 for the first fastener 31 to pass through, thereby raising the mating surface, and ensuring that oil cannot leak from the mounting gap under the oil quantity under the normal working condition. The fan cover 11 is connected to the front side of the adapter 2 by means of a first fastening element 31.

The buckle 32 is formed at the top rear side of the connecting portion 24 and is located in the oil guiding groove 26, a first clamping groove 131 is formed in the rear side wall of the fan cover 11 located at the air inlet 12, and connection of the fan cover 11 and the rear side of the adapter 2 is achieved through cooperation of the buckle 32 and the first clamping groove 131.

Therefore, the disassembly and assembly of the adapter 2 can be realized by only loosening and tightening the first fastener 31 on the front side, and the quick disassembly, assembly and maintenance can be realized.

The rectifying plates 25 can be arranged on the inner side of the adaptor main body 23, the rectifying plates 25 extend longitudinally and extend to the front side and the rear side in the adaptor main body 23, the rectifying plates 25 can be at least two, and are arranged at intervals along the left-right direction, so that the effect of rectifying oil smoke can be achieved, inhaled oil smoke fluid is smoother, and the oil smoke absorbing efficiency is improved.

Notches 242 are formed in the inner peripheral wall of the connecting portion 24, for example, on the left and right sides of the inner peripheral wall of the connecting portion 24, and the notches 242 communicate the oil guide groove 26 with the inner side of the adapter main body 23, so that oil stains can flow down along a desired route to prevent exudation.

The mounting structure further comprises a sealing gasket 33 arranged at the joint of the fan cover 11 and the adapter 2, the first fastener 31 and the buckle 32 provide force in the vertical direction, and the tightness of the joint of the fan cover 11 and the adapter 2 can be ensured by tightening the first fastener 31.

Example two

Referring to fig. 7 to 10, in the present embodiment, the difference from the first embodiment is that the mounting structure includes a buckle 34 instead of the first fastener 31 described above to achieve connection of the fan cover 11 and the front side of the adapter 2.

The buckle 34 is provided on the front side of the outer peripheral wall of the connecting portion 24, the rotation shaft thereof extends in the left-right direction, and the fan cover 11 is formed with a second locking groove 132 at a position corresponding to the buckle 34, whereby the buckle 34 is engaged with the second locking groove 132 of the fan cover 11 to achieve locking.

Example III

Referring to fig. 11 to 14, in the present embodiment, the difference from the first embodiment is that the installation structure adopts a sliding connection manner, so that the operation on the back (wall-attaching) with a small space can be effectively avoided.

The outer surfaces of the front and rear side walls of the fan cover 11, which are positioned at the air inlet 12, are respectively provided with a chute 14, the connecting part 24 is provided with a boss 35, and the boss 35 is preferably cylindrical and can slide along the chute 14. The positions of the chute 14 and the boss 35 are interchangeable, i.e. the chute 14 is provided on the adapter 24 and the boss 35 is provided on the fan cover 11. The chute 14 extends in the left-right direction and has a certain inclination in the up-down direction, so that a certain margin in the up-down direction can be ensured when the adapter 24 moves left-right, excessive friction with the lower sealing pad 33 can not be caused during movement, and the installation can be facilitated.

Example IV

Referring to fig. 15 to 17, in the present embodiment, the difference from the first embodiment is that the mounting structure is fixed by means of the second fastening members 36, and the second fastening members 36 penetrate the connecting portion 24 and the fan cover 11 laterally at the front side, the left side and the right side, respectively, so as to fix the fan frame 1 and the adapter 2.

By the installation mode, the distance between the fixed position and the bottom surface of the oil guide groove 26 is increased, namely, the oil seepage point is higher, and oil pollution overflow is better avoided.

Claims

1. The utility model provides a switching structure of range hood, includes adaptor (2) and is used for setting up fan lid (11) in the fan system below of range hood, adaptor (2) set up under fan lid (11), be formed with air intake (12) on fan lid (11), its characterized in that: the rear side of the adapter piece (2) and the fan cover (11) is tightly attached to an external installation foundation of the range hood, the adapter piece (2) and the fan cover (11) are connected through an installation structure, the front sides of the adapter piece (2) and the fan cover (11) which are positioned at the air inlet (12) are detachably connected, and the left side and the right side or the rear side of the adapter piece (2) and the fan cover (11) which are positioned at the air inlet (12) are also detachably connected.

2. The switching structure of a range hood according to claim 1, wherein: the adaptor (2) comprises an adaptor main body (23) and a connecting part (24) arranged at the top of the adaptor main body (23), the connecting part (24) is annular, an oil guiding groove (26) is formed in the downward sinking mode of the top of the connecting part (24), and the bottom of the fan cover (11) is inserted into the oil guiding groove (26).

3. The switching structure of the range hood according to claim 2, wherein: the mounting structure comprises a first fastener (31) and a buckle (32), wherein the front side of the connecting part (24) is fixed with the fan cover (11) through the first fastener (31), and the rear side of the connecting part (24) is fixed with the fan cover (11) through the buckle (32).

4. The switching structure of a range hood according to claim 3, wherein: the first fastening piece (31) penetrates through the connecting portion (24) and the front side wall of the fan cover (11) located at the air inlet (12) from bottom to top.

5. The adapting structure of a range hood according to claim 4, wherein: the connecting part (24) is provided with a mounting column (241) in an upward extending mode at a position where the first fastening piece (31) passes through, and the mounting column (241) is higher than the bottom surface of the oil guide groove (26).

6. The switching structure of the range hood according to claim 2, wherein: the mounting structure comprises a buckle (34) and a buckle (32), wherein the front side of the connecting part (24) is fixed with the fan cover (11) through the buckle (34), and the rear side of the connecting part (24) is fixed with the fan cover (11) through the buckle (32).

7. The switching structure of a range hood according to claim 1, wherein: the fan cover (11) is located on one of the front and rear side wall outer surfaces of the air inlet (12) and the front and rear sides of the connecting portion (24), the sliding groove (14) is arranged on the other of the front and rear side wall outer surfaces of the air inlet (12) and the front and rear sides of the connecting portion (24), the fan cover (11) is provided with a boss (35), and the boss (35) is in sliding connection with the sliding groove (14).

8. The range hood switching structure according to claim 7, wherein: the chute (14) has a certain inclination in the up-down direction.

9. The switching structure of the range hood according to claim 2, wherein: the mounting structure includes second fasteners (36), and the second fasteners (36) penetrate through the connecting portion (24) and the fan cover (11) laterally on the front side and the left and right sides respectively, so as to fix the fan frame (1) and the adapter (2).

10. The switching structure of the range hood according to claim 2, wherein: the inside of the adaptor body (23) is provided with a rectifying plate (25), and the rectifying plate (25) extends to the front side and the rear side in the adaptor body (23).

11. The switching structure of the range hood according to claim 2, wherein: the inner peripheral wall of the connecting part (24) is provided with a notch (242), and the notch (242) is used for communicating the oil guide groove (26) with the inner side of the adapter main body (23).

12. The switching structure of a range hood according to any one of claims 1 to 11, wherein: the mounting structure also comprises a sealing gasket (33) arranged at the joint of the fan cover (11) and the adapter (2).

13. A range hood, characterized in that: the switching structure of the range hood with the fan system according to any one of claims 1 to 12, the range hood further comprises a fan frame (1) for arranging a fan system, an air inlet assembly (200) and a connecting pipeline (100) connected between the air inlet assembly (200) and a fan cover (11), and the fan cover (11) is a part at the bottom of the fan frame (1).

14. The range hood of claim 13, wherein: the fan frame (1) is used for being installed in a suspended ceiling, and the connecting pipeline (100) is a hose.