CN220958611U

CN220958611U - Fume exhauster

Info

Publication number: CN220958611U
Application number: CN202322794864.2U
Authority: CN
Inventors: 翁建松; 周佳杰
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2023-10-17
Filing date: 2023-10-17
Publication date: 2024-05-14
Anticipated expiration: 2033-10-17

Abstract

The utility model discloses a range hood, which comprises a fume collecting hood, a fan system and an air outlet cover, wherein the fan system is arranged on the fume collecting hood, the fume collecting hood is used for being fixed on an external installation basis, the fan system comprises an output end of the fan system, and the air outlet cover comprises an input end of the air outlet cover and an output end of the air outlet cover, and is characterized in that: the fan system output end is arranged towards the external installation foundation, the fan cover input end is connected with the fan system output end, and the fan cover output end penetrates through the external installation foundation. Compared with the prior art, the utility model has the advantages that: the smoke exhaust pipe is not needed, and the smoke exhaust resistance is low, so that the rotating speed of the fan can be reduced, and the running noise is reduced.

Description

Fume exhauster

Technical Field

The utility model relates to a lampblack purifying device, in particular to a range hood.

Background

The fume exhauster is one kitchen appliance for purifying kitchen environment, and has the functions of exhausting fume produced during the burning of kitchen range and cooking process, reducing pollution, purifying air, etc.

The utility model discloses a smoke exhaust structure and a range hood using the smoke exhaust structure, as disclosed in China patent application No. 202321045490.8, wherein the smoke exhaust structure comprises a smoke exhaust pipe, the smoke exhaust pipe comprises a smoke inlet and a smoke outlet, and the smoke exhaust pipe is provided with a telescopic folding structure.

At present, most of the range hoods are designed for range hoods used in high-rise buildings in the market, and the range hoods are connected with a long smoke pipe to discharge the oil smoke exhausted by the range hoods to a public flue through the smoke pipe, so that the smoke pipe plays a role in exhausting smoke, and a plurality of problems are caused by the smoke pipe.

1. Resistance of smoke tube: because the smoke tube is longer, and because of the problem of the discharge position, more than one corner needs to be arranged, the whole smoke discharging resistance is increased, so that the smoke exhaust ventilator needs to have larger air quantity and larger resistance, and the noise is larger;

2. Oil accumulation in the smoke tube: because the smoke tube is relatively long, turning exists, a large amount of greasy dirt is accumulated in the smoke tube after a long time, the cleanliness is affected, and even odor is generated;

3. Maintenance problems: because the flue pipe needs to stretch out and draw back to adapt to different installation scenes, often adopt aluminium foil flue pipe, easy damage. In addition, for the convenience of installation, the sealing is often carried out by adopting an adhesive mode, but due to the existence of greasy dirt, the sealing performance is often not ensured.

The same scheme is adopted for non-high-rise buildings such as villas or rural self-building houses, but because the kitchen of the house is different from the high-rise building, the mounting wall surface of the range hood is often an outer wall surface, smoke can be discharged without adopting a smoke pipe, the current product does not consider the requirements of the user, and the smoke pipe is still adopted for discharging smoke, so that the smoke pipe exists to bring the problems.

Disclosure of utility model

The utility model aims to solve the technical problems of the prior art, and provides the range hood without using a smoke exhaust pipe, which has low smoke exhaust resistance, so that the rotating speed of a fan can be reduced, and the running noise is reduced.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a range hood, includes collection petticoat pipe, sets up fan system and air-out cover on collection petticoat pipe, collection petticoat pipe is used for fixing on externally mounted basis, fan system includes the fan system output, the air-out cover includes air-out cover input and air-out cover output, its characterized in that: the fan system output end is arranged towards the external installation foundation, the fan cover input end is connected with the fan system output end, and the fan cover output end penetrates through the external installation foundation.

The fan system output end is arranged towards the external installation foundation, so that the air outlet cover directly penetrates through the external installation foundation, the fume can be discharged outdoors without a fume discharge pipe, the fume discharge resistance is low, the rotating speed of the fan can be reduced, and the running noise is reduced.

In order to prevent rainwater from entering from the gap between the air outlet cover and the external mounting base, the range hood further comprises a sealing member arranged between the air outlet cover and the external mounting base.

In order to prevent rainwater from entering from the gap between the air outlet cover and the external installation base, the sealing member comprises a sealing gasket capable of sealing the gap between the air outlet cover and the external installation base and a fastening member for fixing the sealing gasket.

In order to realize the installation of sealing member, the sealing gasket is annular and overlaps to establish in the periphery of air-out cover, outside installation basis is kept away from one side of collection petticoat pipe and is formed with towards the inboard sunken mounting groove, the shape and the sealing gasket adaptation of mounting groove, the sealing gasket can be arranged in the mounting groove.

In order to realize the installation of sealing member, the fastener includes spacing portion and the connecting portion that links to each other with spacing portion with sealing gasket spacing in the mounting groove, connecting portion is connected with the exhaust hood.

In order to realize the connection of the fastener and the air outlet cover, the connecting part is sleeved on the periphery of the air outlet cover and is in threaded connection with the air outlet cover.

In order to realize the oil smoke separation function, the environment pollution caused by oil smoke emission is avoided. And the output end of the air outlet cover is provided with an oil fume separating device.

In order to realize the oil smoke separation function, the oil smoke separation device comprises an input end of the oil smoke separation device, a separator for separating oil smoke from oil smoke gas introduced from the input end of the oil smoke separation device through centrifugal force and a discharge pipe for discharging gas in the separator, wherein the input end of the oil smoke separation device is connected with an output end of the air outlet cover.

In order to realize the oil smoke separation function, the separator comprises a first part and a second part which are longitudinally arranged and are hollow, the first part is cylindrical, the top shape of the second part corresponds to the bottom of the first part, the caliber of the second part is gradually contracted from top to bottom, the discharge pipe is longitudinally arranged on the first part, the discharge pipe comprises a discharge pipe input end and a discharge pipe output end which is positioned above the discharge pipe input end, and the discharge pipe input end is arranged on the inner side of the first part and is positioned above the second part.

In order to discharge oil stains, an oil leakage hole is formed at the bottom of the second part.

In order to prevent rainwater from flowing backward, the included angle between the axial direction of the air outlet cover and the external installation foundation is A, and the value range of A is 80-90 degrees.

In order to facilitate collection of greasy dirt, an included angle between one side of the fan system corresponding to the smoking port and the external installation foundation is B, and the value range of B is 90-100 degrees.

Compared with the prior art, the utility model has the advantages that: the fan system output end is arranged towards the external installation foundation, so that the air outlet cover directly penetrates through the external installation foundation, the fume can be discharged outdoors without a fume discharge pipe, the fume discharge resistance is low, the rotating speed of the fan can be reduced, and the running noise is reduced. By arranging the sealing piece, rainwater can be prevented from entering from a gap between the air outlet cover and the external installation foundation. Through set up oil smoke separator on the exhaust hood output to can oil smoke emission polluted environment, and can play the effect that prevents the oil smoke and flow backward. The included angle between the axial direction of the air outlet cover and the external installation foundation is set between 80 degrees and 90 degrees, so that rainwater can be prevented from flowing backwards. The included angle between the bottom of the fan system and the external installation foundation is between 90 degrees and 100 degrees, so that the collection of greasy dirt can be facilitated.

Drawings

Fig. 1 is a schematic front view of a range hood according to an embodiment of the present utility model on the basis of external installation;

Fig. 2 is a schematic side view of the range hood according to the embodiment of the present utility model on the basis of external installation;

Fig. 3 is a side sectional view of a range hood according to an embodiment of the present utility model on an external installation basis;

FIG. 4 is an enlarged view of part I of FIG. 3;

Fig. 5 is an exploded view of a range hood according to an embodiment of the present utility model;

Fig. 6 is a schematic diagram of an included angle a and an included angle B of a range hood according to an 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.

Referring to fig. 1 to 3, a range hood includes a hood 1 and a fan system 2 disposed inside the hood 1. The fume collecting hood 1 is fixed to the external mounting base 100. The external mounting base 100 in this embodiment is a wall. The fume collecting hood 1 is provided with a fume suction opening 11 which is opened downwards. The fume collecting hood 1 is a thin square box body, and a fume baffle plate or a concave fume collecting cavity can be arranged at the fume suction opening 11 to improve the fume suction effect.

The fan system 2 includes a fan system output 21 and a fan system input 22, which are arranged horizontally, the fan system output 21 being opened toward the external mounting base 100, the fan system input 22 then corresponding downwardly to the smoking mouth 11. The range hood further comprises an outlet hood 3 passing through the external mounting base 100, the outlet hood 3 comprising an outlet hood input 31 and an outlet hood output 32. The outlet hood input 31 is connected to the fan system output 21 and the outlet hood output 32 passes through the external mounting base 100.

Referring to fig. 6, in order to prevent rainwater from flowing backward, an included angle between the axial direction of the air outlet cover 3 and the external installation base 100 is a, and the value of a ranges from 80 ° to 90 °. In order to facilitate collection of oil stains, an included angle between one side of the fan system 2 corresponding to the smoking port 11 (i.e. a plane where the fan system input end 22 is located) and the external installation base 100 is B, and the value of B ranges from 90 ° to 100 °.

Referring to fig. 2 to 5, the range hood further includes a sealing member 4 provided between the air outlet cover 3 and the external mounting base 100. The seal 4 can prevent external rainwater from entering. The seal 4 includes a packing 41 capable of blocking a gap between the air outlet cover 3 and the external mounting base 100, and a fastener 42 for fixing the packing 41. The gasket 41 is annular and is sleeved on the outer periphery of the air outlet cover 3.

Referring to fig. 4, the external mounting base 100 is formed with a mounting groove 1001 recessed toward the inside at a side remote from the fume collecting hood 1, the mounting groove 1001 is shaped to fit with the gasket 41, and the gasket 41 is placed in the mounting groove 1001. The fastener 42 includes a limiting portion 421 limiting the sealing pad 41 in the mounting groove 1001 and a connecting portion 422 connected with the limiting portion 421, the connecting portion 422 is sleeved on the periphery of the air outlet cover 3, the connecting portion 422 is in threaded connection with the air outlet cover 3, the sealing pad 41 is extruded through fastening force of threaded connection, and sealing performance of the sealing pad 41 is guaranteed. And the sealing glue can be further sprayed on the gap, so that the sealing performance is further improved.

Referring to fig. 2 to 3 and 5 to 6, in order to avoid the fume emission from polluting the environment, the fume separator 5 is provided on the outlet end 32 of the hood. The oil smoke separating apparatus 5 is a cyclone separating apparatus in this embodiment, and includes an oil smoke separating apparatus input end 51, a separator 52 that separates oil smoke gas introduced from the oil smoke separating apparatus input end 51 by centrifugal force, and a discharge pipe 53 that discharges gas in the separator 52. The oil and smoke separator input 51 is connected to the hood output 32.

The separator 52 includes a first portion 521 and a second portion 522, each of which is hollow, arranged longitudinally. The first portion 521 is cylindrical and the second portion 522 is frustoconical. The top shape of the second portion 522 corresponds to the bottom of the first portion 521, and the caliber of the second portion 522 gradually decreases from top to bottom.

The discharge pipe 53 is longitudinally disposed on the first portion 521, and the discharge pipe 53 includes a discharge pipe input end 531 and a discharge pipe output end 532, the discharge pipe input end 531 being disposed inside the first portion 521 and above the second portion 522, the discharge pipe output end 532 being located above the discharge pipe input end 531, preferably so as to be exposed to the first portion 521. The bottom of the second portion 522 is formed with oil leakage holes 5221.

The airflow passes through the tangentially arranged inlet 51 of the oil and smoke separator, forms a swirling airflow in the separator 52, and due to centrifugal force, the oil and smoke particles are thrown against the wall surface and flow down the wall surface to the oil leakage holes 5221, while the airflow forms a spiral upward airflow under the extrusion of the contracted structure of the second part 522, and is discharged from the discharge pipe 53.

When raining, rainwater enters from the discharge pipe output end 532 and falls down, and directly flows out from the oil leakage hole 5221, thereby playing a role in preventing the rainwater from flowing backward.

The oil smoke separating apparatus 5 in the present embodiment has two. The fume separator 5 may be a filter element assembly with a filter material as a core, an inertial or gravity separator, or an electrostatic separator.

The utility model designs a smoke-free range hood, wherein a fan system 2 directly exhausts air to the outside through an air outlet cover 3, and the middle part of the smoke-free range hood has no turning and long smoke pipe, so that the smoke discharging resistance of the smoke-free range hood is greatly reduced, the rotating speed of the fan is reduced, and the noise is also reduced. Meanwhile, as the smoke discharging resistance is small, the requirement on the air quantity is not high, and the range hood with smaller volume can be designed, so that the cost is reduced. Because of the design without smoke pipes, the kitchen is not provided with smoke pipes, thereby leading the whole kitchen to be clean and beautiful. The scheme can be applied to villas or rural areas, even in the situations that the smoke exhaust of the range hood is direct outward emission and the installation surface is an outer wall in high-rise buildings.

Claims

1. The utility model provides a range hood, includes collection petticoat pipe (1), sets up fan system (2) and air-out cover (3) on collection petticoat pipe (1), collection petticoat pipe (1) are used for fixing on external mounting basis (100), fan system (2) include fan system output (21), air-out cover (3) include air-out cover input (31) and air-out cover output (32), its characterized in that: the fan system output end (21) is arranged towards the external installation foundation (100), the air outlet cover input end (31) is connected with the fan system output end (21), and the air outlet cover output end (32) penetrates through the external installation foundation (100).

2. The range hood of claim 1, wherein: the range hood further comprises a sealing element (4) arranged between the air outlet cover (3) and the external installation base (100).

3. The range hood of claim 2, wherein: the sealing element (4) comprises a sealing gasket (41) capable of sealing a gap between the air outlet cover (3) and the external installation base (100) and a fastening piece (42) for fixing the sealing gasket (41).

4. A range hood according to claim 3, wherein: the sealing gasket (41) is annular and sleeved on the periphery of the air outlet cover (3), one side, far away from the fume collecting cover (1), of the external installation foundation (100) is provided with an installation groove (1001) which is sunken towards the inner side, the shape of the installation groove (1001) is matched with that of the sealing gasket (41), and the sealing gasket (41) can be placed in the installation groove (1001).

5. The range hood of claim 4, wherein: the fastener (42) comprises a limiting part (421) for limiting the sealing gasket (41) in the mounting groove (1001) and a connecting part (422) connected with the limiting part (421), and the connecting part (422) is connected with the air outlet cover (3).

6. The range hood of claim 5, wherein: the connecting part (422) is sleeved on the periphery of the air outlet cover (3), and the connecting part (422) is in threaded connection with the air outlet cover (3).

7. The range hood according to any one of claims 1 to 6, wherein: and an oil smoke separation device (5) is arranged on the output end (32) of the air outlet cover.

8. The range hood of claim 7, wherein: the oil smoke separation device (5) comprises an oil smoke separation device input end (51), a separator (52) for separating oil smoke gas introduced from the oil smoke separation device input end (51) by centrifugal force, and a discharge pipe (53) for discharging gas in the separator (52), wherein the oil smoke separation device input end (51) is connected with an air outlet cover output end (32).

9. The range hood of claim 8, wherein: the separator (52) comprises a first portion (521) and a second portion (522) which are longitudinally arranged and are hollow, the first portion (521) is cylindrical, the top shape of the second portion (522) corresponds to the bottom of the first portion (521), the caliber of the second portion (522) gradually contracts from top to bottom, the discharge pipe (53) is longitudinally arranged on the first portion (521), the discharge pipe (53) comprises a discharge pipe input end (531) and a discharge pipe output end (532) which is arranged above the discharge pipe input end (531), and the discharge pipe input end (531) is arranged on the inner side of the first portion (521) and is arranged above the second portion (522).

10. The range hood of claim 9, wherein: an oil leakage hole (5221) is formed in the bottom of the second portion (522).

11. The range hood according to any one of claims 1 to 6, wherein: the included angle between the axial direction of the air outlet cover (3) and the external installation base (100) is A, and the value range of A is 80-90 degrees.

12. The range hood according to any one of claims 1 to 6, wherein: the included angle between one side of the fan system (2) corresponding to the smoking opening (11) and the external installation foundation (100) is B, and the value range of B is 90-100 degrees.