CN210772385U

CN210772385U - Fume exhaust fan

Info

Publication number: CN210772385U
Application number: CN201921779888.8U
Authority: CN
Inventors: 孔凡阳; 庞宗莉; 许宁; 孔祥凯; 邓志敏; 冯圆通
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2020-06-16
Anticipated expiration: 2029-10-22

Abstract

The utility model provides a range hood, including casing and fan subassembly, the fan subassembly includes the impeller, its characterized in that, range hood still includes: a first pipeline for conveying washing water; the second pipeline is used for conveying cleaning liquid and is provided with a switch valve; the mixed flow device is connected with a mixed flow input pipe and a backflow output pipe, the first pipeline and the second pipeline are converged at the mixed flow input pipe, and a water outlet of the backflow output pipe is opposite to the impeller. The range hood sets up water and washing liquid separation, and the washing liquid passes through the ooff valve control, and the mixed flow device can fully wash the impeller through washing liquid and water mixture, washes the greasy dirt on the range hood blade clean, closes the ooff valve again, and only first pipeline normal water passes through the pipeline and finally spouts from the delivery port and cleans washing liquid or the mixture of washing liquid and greasy dirt on the blade, reaches the purpose of overcoming the not thorough defect of washing of the range hood among the prior art.

Description

Fume exhaust fan

Technical Field

The utility model relates to the technical field of household appliances, concretely relates to range hood.

Background

The range hood can accumulate greasy dirt frequently in the use process, the self-cleaning function of the range hood is particularly important, and dirty stain residue which is not cleaned can influence the performance and the service life of the fan, so that the performance and the service life of the range hood and the user experience are influenced.

In the prior art, the common self-cleaning of the range hood is divided into three modes of steam washing, oil stain thermalization and soaking washing, wherein the steam washing mainly heats water into steam which is sprayed out from a nozzle and flushes the interior of the range hood; the oil stain is thermalized mainly by heating parts such as a volute or a wind wheel to a melting point at which the oil stain can be melted, so that the oil stain is melted and automatically flows out of the interior of a smoke machine to realize self-cleaning; the soaking and washing is realized by immersing a part of the wind wheel in the cleaning solution and then rotating the wind wheel for washing. The cleaning mode through soaking makes the detergent fully contact with the oil stain, soften and clean.

However, lack of detergent addition for steam washing also results in unclean washing; the oil stain thermalization mode is easily influenced by the household environment, the heating temperature and the heating time are insufficient, and the cleaning residue is serious; the soaking and cleaning process is relatively troublesome because the cleaning solution becomes dirty after being cleaned, and if the cleaning solution is required to be manually replaced for thorough cleaning.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the not thorough defect of washing of range hood among the prior art to a range hood is provided.

The utility model provides a range hood, including casing and fan subassembly, the fan subassembly includes the impeller, range hood still includes:

a first pipeline for conveying washing water;

the second pipeline is used for conveying cleaning liquid and is provided with a switch valve;

the mixed flow device is connected with a mixed flow input pipe and a backflow output pipe, the first pipeline and the second pipeline are converged at the mixed flow input pipe, and a water outlet of the backflow output pipe is opposite to the impeller.

The end part of the mixed flow input pipe is provided with a three-way valve, and the first pipeline and the second pipeline are respectively connected to the three-way valve.

The second pipeline includes: the cup comprises a cup body, and the inner part of the cup body is used for storing cleaning fluid; the switch valve is connected with the containing cup and is suitable for controlling the cleaning medium in the containing cup to flow out; and the conveying pipe is connected with the switch valve and the three-way valve.

The first pipeline includes: the water delivery hose is divided into a free section, an ascending section and a bending section along the water flow direction, the upstream end of the free section is a water delivery end, the horizontal height of the ascending section is gradually increased along the water flow direction, and the slope of the bending section is gradually reduced until the pipe section is vertically downward along the water flow direction.

The first pipeline also comprises a two-way valve with one end connected with the water delivery hose and a water delivery hard pipe arranged at the other end of the two-way valve, and the other end of the water delivery hard pipe is connected with the three-way valve.

The water delivery hard pipe is horizontally arranged and connected on the three-way valve and the two-way valve, a horizontal baffle is arranged inside the shell, a via hole for the first pipeline and the second pipeline to pass through is formed in the horizontal baffle, and the water delivery hard pipe is arranged on the horizontal baffle.

The end of the backflow output pipe is connected with a cleaning head, and the cleaning head comprises: the inner cavity is suitable for containing water or the mixture of the cleaning liquid and the water, and the plurality of water spraying holes are arranged at the tail end of the inner cavity, and the cleaning head is a water conveying end.

The cleaning head is arranged inside the fan assembly, and the water spray hole of the cleaning head is aligned with the impeller.

The cleaning head is rotatably connected with the reflux output pipe.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a range hood, including casing and fan subassembly, the fan subassembly includes the impeller, its characterized in that, range hood still includes: a first pipeline for conveying washing water; the second pipeline is used for conveying cleaning liquid and is provided with a switch valve; the mixed flow device is connected with a mixed flow input pipe and a backflow output pipe, the first pipeline and the second pipeline are converged at the mixed flow input pipe, and a water outlet of the backflow output pipe is opposite to the impeller. The range hood separates water from cleaning liquid, the cleaning liquid is controlled by a switch valve, the flow mixing device can control the cleaning water and the cleaning liquid to be fully mixed and sprayed out from a water outlet of a backflow output pipe to fully clean the impeller, oil stains or other mixtures on the blades of the range hood are washed clean, then the circulation of the cleaning liquid in the second pipeline is interrupted by closing the switch valve, only water in the first pipeline is left to be sprayed out from the water outlet through the pipeline finally to clean the cleaning liquid or the mixture of the cleaning liquid and the oil stains on the blades, and the purpose of overcoming the defect that the range hood in the prior art is not completely cleaned is achieved.

2. The utility model provides a range hood, water delivery hard tube are level form and set up the connection and are in the three-way valve with on the two-way valve, the inside horizontal baffle that is provided with of casing, be provided with the via hole that supplies first pipeline and second pipeline to pass through on the horizontal baffle, the water delivery hard tube sets up on the horizontal baffle. First pipeline and second pipeline have passed through the via hole, and the water delivery hard tube setting that the level set up is in on the horizontal baffle, first pipeline and second pipeline block have played the supporting role to first pipeline and two pipelines and mixed flow device on the horizontal baffle, and have restricted first pipeline and second pipeline at the radial and ascending removal in week of mixed flow input tube axis, have realized the fixed of first pipeline and second pipeline on the casing.

3. The utility model provides a range hood, the cleaning head is located inside the fan subassembly, the cleaning head water spray hole is aimed at the impeller. The cleaning head arranged in the fan can spray the fine impeller in a short distance, the cleaning effect is better, and the cleaning water is more difficult to splash out of the shell and the fan assembly.

4. The utility model provides a range hood, cleaning head with backward flow output tube rotatable coupling. The cleaning head can rotate for the backward flow output tube, and the cleaning head is adjustable to the position that the impeller was spouted to the cleaning head, and the cleaning head can fully wash the impeller, washs the unable impeller dead angle that washs in cleaning head original position, and such setting can wash the impeller completely, and the cleaning performance is better.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a range hood provided in an embodiment of the present invention;

FIG. 2 is a front view of a portion of the structure of the range hood shown in FIG. 1;

fig. 3 is a left side view of a part of the structure of the range hood shown in fig. 2;

fig. 4 is a rear view of a portion of the structure of the range hood shown in fig. 2;

fig. 5 is an enlarged structural view of a portion a of the range hood shown in fig. 2;

description of reference numerals:

1-a shell; 2-a fan assembly; 3-a first pipeline; 4-a second pipeline; 5-a flow mixing device; 6-reflux output pipe; 7-mixed flow input pipe; 21-an impeller; 31-water hose; 311-free segment; 312 — a rising section; 313-bending section; 32-a two-way valve; 33-water conveying hard pipe; 34-a three-way valve; 41-containing cup; 42-a switch valve; 43-a delivery pipe; 61-a cleaning head; 611-water spray holes.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

As shown in fig. 1-5, a range hood includes a housing 1 and a fan assembly 2, the fan assembly 2 includes an impeller 21, and the range hood further includes: a first pipe 3 for conveying washing water; a second pipe 4 for conveying the cleaning liquid, on which an on-off valve 42 is provided; the mixed flow device 5 is connected with a mixed flow input pipe 7 and a backflow output pipe 6, the first pipeline 3 and the second pipeline 4 are converged at the mixed flow input pipe 7, and a water outlet of the backflow output pipe 6 is opposite to the impeller 21.

The inside fan subassembly 2 that sets up of casing 1, fan subassembly 2 include subassembly such as spiral case and impeller 21, and the ooff valve 42 is manual ball valve in this embodiment, and washing water is the running water, and the washing liquid is the sanitizer.

The range hood separates water from cleaning liquid, the cleaning liquid is controlled by the switch valve 42, the flow mixing device 5 can control the cleaning liquid and the cleaning liquid to be fully mixed and sprayed out from the water outlet of the backflow output pipe 6 to fully clean the impeller 21, oil stains or other mixtures on the blades of the range hood are cleaned, the circulation of the cleaning liquid in the second pipeline 4 is interrupted by closing the switch valve 42, only water in the first pipeline 3 is left to be sprayed out from the water outlet through the pipeline finally to clean the cleaning liquid or the mixture of the cleaning liquid and the oil stains on the blades, and the purpose of overcoming the defect that the range hood in the prior art is not completely cleaned is achieved.

The end of the mixed flow input pipe 7 is provided with a three-way valve 34, and the first pipeline 3 and the second pipeline 4 are respectively connected with the three-way valve 34. The three-way valve 34 merges the washing liquid via the first line 3 and the washing liquid via the second line 4.

The second pipe 4 includes: the cup 41 includes a cup body, and the inside is used for storing the cleaning liquid; a switch valve 42 connected with the container 41 and adapted to control the outflow of the cleaning medium in the container 41; the delivery pipe 43 and the connection switching valve 42 are connected to the three-way valve 34.

The cup 41 also includes the cover body preventing from spilling, the cleaning solution can supplement after using up, cup 41 and switch valve 42 and delivery pipe 43 are set up sequentially along vertical direction separately, the cleaning solution in the cup 41 passes the gravity, when the switch valve 42 is opened, flow out the cup 41 and enter the delivery pipe 43, the delivery pipe 43 is a hard pipe, is used for supporting the cup 41 and switch valve 42, as the changeable implementation, can set up the cup 41 shelf on the body 1, put the cup 41 on the shelf to fix; as another alternative embodiment, a pressure device may be provided at the upper end or inside of the cup 41, adapted to force the cleaning liquid out of the cup 41.

The first pipe 3 includes: the water delivery hose 31 is characterized in that the water delivery hose 31 is divided into a free section 311, an ascending section 312 and a bending section 313 along the water flow direction, the upstream end of the free section 311 is a water delivery end, the horizontal height of the ascending section 312 is gradually increased along the water flow direction, and the slope of the bending section 313 is gradually reduced until the pipe section is vertically downward along the water flow direction. In the present embodiment, the bending section 313 is located above the housing 1.

The upper end of the free section 311 is a water delivery end connected to a water source, in this embodiment, the water source is a tap water pipe, the water source has pressure and delivers clean water to the water outlet, the free end is mainly suitable for communicating with a water source which is located at a different level and may be far away from the range hood, the rising section 312 is fixed to the side of the housing 1, so that the first pipeline 3 is fixed to the housing 1, the stability of the device is increased, the water delivery hose 31 is effectively connected to the three-way valve 34 by the bending section 313, the water pipe deforms, and water can smoothly circulate.

As a variable embodiment, the rising section 312 and the bending section 313 may not be provided.

The first pipeline 3 further comprises a two-way valve 32 with one end connected to the water hose 31, and a water pipe 33 disposed at the other end of the two-way valve 32, and the other end of the water pipe 33 is connected to a three-way valve 34. A two-way valve 32 may control the passage and interruption of the water in the first line 3.

The water delivery hard pipe 33 is horizontally arranged and connected to the three-way valve 34 and the two-way valve 32, a horizontal baffle is arranged inside the shell 1, a via hole for the first pipeline 3 and the second pipeline 4 to pass through is formed in the horizontal baffle, and the water delivery hard pipe 33 is arranged on the horizontal baffle.

First pipeline 3 and second pipeline 4 have passed through the via hole, the water delivery hard tube 33 that the level set up sets up on horizontal baffle, first pipeline 3 and 4 block of second pipeline are on horizontal baffle, such cooperation has played the supporting role to first pipeline 3 and two pipelines and mixed flow device 5, and restricted first pipeline 3 and second pipeline 4 at the radial and ascending removal in circumference of mixed flow input tube 7 axis, realized the fixed of first pipeline 3 and second pipeline 4 on casing 1.

As an alternative embodiment, the first and second lines 3, 4 may be fixed to a fixed support provided on the housing 1.

The end of the backflow output pipe 6 is connected with a cleaning head 61, and the cleaning head 61 comprises: an inner chamber adapted to contain water or a mixture of cleaning liquid and water, and a plurality of spray holes 611 provided at the end of the inner chamber, the cleaning head 61 being a water delivery end. In this embodiment, the water spray holes 611 are uniformly arranged, and the water inlet side space of the inner cavity is larger than the end space.

The inner cavity continuously receives the cleaning liquid or water, and the water inlet side space is larger than the tail end space, so the flow speed at the water spraying hole 611 is larger, the rotating impeller 21 is contacted and flapped with the solution, the cleaning agent reacts with the dirt, the dirt on the impeller 21 is cleaned and stripped simultaneously, and the impeller 21 can be completely cleaned without the cleaning liquid residue under the condition that the cleaning head 61 only sprays cleaning water.

The cleaning head 61 is disposed inside the blower assembly 2, and the water spray holes 611 of the cleaning head 61 are aligned with the impeller 21. The cleaning head 61 is rotatably connected with the reflux output pipe 6. The reflux output pipe 6 is clamped and fixed with the shell 1. The cleaning head 61 arranged inside the fan can spray the impeller 21 at a short distance, so that the cleaning effect is better, and the cleaning water is more difficult to splash out of the shell 1 and the fan assembly 2. The cleaning head 61 can rotate relative to the backflow output pipe 6, the position of the cleaning head 61 for spraying and cleaning the impeller 21 is adjustable, the cleaning head 61 can fully wash the impeller 21, dead corners of the impeller 21 which cannot be cleaned at the original position of the cleaning head 61 can be cleaned, and all parts of the impeller 21 can be cleaned through the arrangement, so that the impeller 21 is completely cleaned.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. The utility model provides a range hood, includes casing (1) and fan subassembly (2), fan subassembly (2) include impeller (21), its characterized in that, range hood still includes:

a first pipeline (3) for conveying washing water;

a second pipeline (4) for conveying the cleaning liquid, on which a switch valve (42) is arranged;

the mixed flow device (5) is connected with a mixed flow input pipe and a backflow output pipe (6), the first pipeline (3) and the second pipeline (4) are converged at the mixed flow input pipe, and a water outlet of the backflow output pipe (6) is opposite to the impeller (21).

2. The range hood according to claim 1, wherein a three-way valve (34) is arranged at the end of the mixed flow input pipe, and the first pipeline (3) and the second pipeline (4) are respectively connected with the three-way valve.

3. The extractor hood according to claim 2, characterized in that said second duct (4) comprises:

a cup (41) including a cup body, the interior of which stores a cleaning liquid;

the switch valve (42) is connected with the containing cup (41) and is suitable for controlling the cleaning medium in the containing cup (41) to flow out;

and a delivery pipe (43) connecting the switching valve (42) and the three-way valve.

4. A range hood according to any one of claims 2-3, characterized in that the first pipe (3) comprises: the water delivery hose (31), the water delivery hose (31) divide into free section (311) and ascending section (312) and kink section (313) along the water flow direction, the water delivery end is held to free section (311) upstream end, the level of ascending section (312) is crescent along with the water flow direction, the slope of kink section (313) reduces gradually until the pipeline section is vertical downwards along the water flow direction.

5. The range hood according to claim 4, wherein the first pipeline (3) further comprises a two-way valve (32) having one end connected to the water hose (31), and a water pipe (33) provided at the other end of the two-way valve (32), and the other end of the water pipe (33) is connected to the three-way valve (34).

6. The range hood according to claim 5, wherein the water pipe (33) is horizontally connected to the three-way valve (34) and the two-way valve (32), a horizontal baffle is disposed inside the housing (1), the horizontal baffle is provided with a via hole for passing the first pipeline (3) and the second pipeline (4), and the water pipe (33) is disposed on the horizontal baffle.

7. The extractor hood according to claim 6, characterized in that the end of the return output pipe (6) is connected with a cleaning head (61), and the cleaning head (61) comprises: an inner cavity suitable for containing water or the mixture of the cleaning liquid and the water, and a plurality of water spray holes (611) arranged at the tail end of the inner cavity, wherein the cleaning head (61) is a water delivery end.

8. The range hood according to claim 7, wherein the cleaning head (61) is arranged inside the fan assembly (2), and the water spray holes (611) of the cleaning head (61) are aligned with the impeller (21).

9. A range hood as claimed in claim 8, characterized in that the cleaning head (61) is rotatably connected to the return outlet pipe (6).