CN216060432U - Fluid conversion device with sealing structure and household cleaning equipment - Google Patents

Abstract

The utility model discloses a fluid conversion device with a sealing structure and household cleaning equipment, wherein the fluid conversion device with the sealing structure comprises a fixed shell, a rotating part and a sealing part positioned between the fixed shell and the rotating part, a shell inner cavity is formed on the fixed shell, and the rotating part is rotatably arranged in the shell inner cavity of the fixed shell; the fluid conversion device is arranged in the washing equipment, so that the number of pumps can be effectively reduced, the arrangement of pipelines is reduced, the volume of the equipment is reduced, and the popularization of the miniaturization of household cleaning equipment is facilitated.

Description

Fluid conversion device with sealing structure and household cleaning equipment

Technical Field

The utility model belongs to the technical field of household electrical appliances, and particularly relates to a fluid conversion device with a sealing structure and household cleaning equipment.

Background

Washing equipment such as dish washer or fruit vegetables purger is the domestic appliance who commonly uses in people's daily life, use the dish washer as an example, the dish washer includes shell, circulating water pump, fan, washing inner bag and sets up the spray arm in the washing inner bag usually, wherein, the washing inner bag adopts plastics or stainless steel material to make usually, and in order to satisfy pleasing to the eye and use the requirement of reliability, it is inside with the inner bag built-in shell usually, form double-deck shell structure promptly, make the great and user experience nature of the volume of whole equipment poor.

In the existing cleaning equipment, different pumps and pipelines are generally required to be configured for different working processes of water inlet, water outlet, drying and the like, so that the problems that the whole cleaning equipment occupies a large space, the manufacturing cost of the equipment is high, the pipeline arrangement is complex and the like are caused, and the miniaturization and the portability of the whole cleaning equipment are not facilitated.

Disclosure of Invention

The utility model aims to provide a fluid conversion device with a sealing structure and household cleaning equipment, and aims to solve the problems that in the prior art, the sealing performance of a conversion valve body is poor in the communication conversion process of different water paths, fluid leakage is easy to occur, pipelines for water inlet and outlet, drying functions and the like in the cleaning equipment are complex, the occupied space is large, the miniaturization design of the cleaning equipment is not facilitated, and the like.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme to realize:

in one aspect, the present invention provides a fluid converting apparatus with a sealing structure, comprising:

the fixed shell is provided with a shell inner cavity, and a plurality of communicating pipelines are formed on the outer wall of the fixed shell;

the rotating part is rotatably arranged in the shell inner cavity of the fixed shell, a water outlet and a plurality of through holes are formed in the rotating part, and the through holes are communicated with the water outlet;

the driving part is connected with the rotating component and is used for driving the rotating component to rotate;

a sealing member formed between the stationary housing and the rotating member for sealing the stationary housing and the rotating member.

In some embodiments of the present application, the sealing member is attached to an inner wall of the stationary housing or an outer wall of the rotating member, and includes a sealing body and a plurality of sealing ports formed on the sealing body, the plurality of sealing ports being adapted to the plurality of through holes formed on the rotating member.

In some embodiments of this application, it is a plurality of all be provided with sealed bulge loop in the department of sealing, sealed bulge loop seals and surrounds sealing opening periphery, and protrusion sealing body surface is used for strengthening the intercommunication mouth with the sealed effect of intercommunication pipeline intercommunication in-process.

In some embodiments of the present application, the sealing member is a plurality of sealing rings formed on the inner wall of the stationary housing or the outer wall of the rotating member, and the sealing rings are adapted to the size of the plurality of through holes formed on the rotating member.

In some embodiments of the present application, the driving portion includes a driving motor, a driving wheel connected to the driving motor, and a driven wheel connected to the driving wheel in a matching manner, the driving wheel and the driven wheel are both in a gear structure, and the driven wheel is fixedly connected to the rotating component;

and a switch part is formed on the outer side of the fixed shell and used for controlling the switch of the driving motor so as to control the rotation angle of the rotating part relative to the fixed shell.

In another aspect, the present invention also provides a home washing apparatus, comprising:

the washing device comprises a washing barrel, wherein the bottom of the washing barrel is provided with a mounting base;

a flushing assembly mounted within the mounting base; it is characterized in that the preparation method is characterized in that,

the flushing assembly comprises a water pump and any one of the fluid conversion devices with the sealing structures, which is connected with the water pump.

In some embodiments of the present application, the plurality of communication pipes on the stationary housing include a first water inlet pipe and a water outlet pipe, and the plurality of through holes on the rotating member include a first through hole and a second through hole;

the position contained angle of first inlet tube with the drain pipe is 30 degrees-180 degrees, first through-hole and the position contained angle between the second through-hole with the position contained angle of first inlet tube with the drain pipe equals.

In some embodiments of this application, still be provided with low water level drain pipe on the fixed casing, low water level drain pipe and contained angle between the drain pipe with contained angle between first through-hole and the second through-hole is the same, low water level drain pipe with water pump shell intercommunication.

In some embodiments of the present application, an air pipe is further disposed above the low water level drain pipe, the outer side of the air pipe is connected to a blower, and in a working state, the air pipe and the low water level drain pipe are simultaneously communicated with the rotating component;

still be provided with the water collector in the installation base, be formed with water catch bowl and return water mouth in the water collector, return water mouth below is connected with the wet return, the wet return with fixed casing intercommunication.

In some embodiments of the present application, the water return pipe is connected to the first water inlet pipe through the water pump, and further communicates with the fixed housing, and water in the water collecting tank enters the rotating component through the water return pipe, the water pump, and the first water inlet pipe;

still include the second inlet tube, the second inlet tube with the water catch bowl intercommunication, the second inlet tube links into the water pump outward, passes through external washing water the wet return the water pump and first inlet tube is carried in the rotating part.

Compared with the prior art, the utility model has the advantages and positive effects that:

the sealing element is arranged in the fluid conversion device, so that the sealing performance between the fixed shell and the rotating part can be effectively improved, the fluid leakage in the butt joint process of different through holes on the rotating part and each communicating pipeline is reduced, and the service life of the part is prolonged; set up fluid conversion equipment in washing equipment, with the different intercommunication pipeline intercommunications on different through-holes and the fixed casing on the rotating part, realize different functions such as intaking, drainage and drying according to actual work condition, can effectively reduce the quantity of pump machine, reduce arranging of pipeline, reduce the equipment volume, be favorable to domestic cleaning equipment's miniaturized popularization.

Other features and advantages of the present invention will become more apparent from the following detailed description of the utility model when taken in conjunction with the accompanying drawings.

Drawings

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

FIG. 1 is an exploded view of one embodiment of a fluid converting device with a sealed structure according to the present invention;

FIG. 2 is a schematic illustration of an assembled fluid conversion device with a sealing structure;

FIG. 3 is a schematic view of a seal configuration according to an embodiment of the present application;

FIG. 4 is a schematic view of a seal ring;

FIG. 5 is a schematic view of the structure of the driving part, the rotating part and the fixed casing of the present invention;

FIG. 6 is a schematic external view of an embodiment of the home washing apparatus according to the present invention;

FIG. 7 is a schematic view of the water collection sump and spray arm arrangement according to one embodiment of the present invention;

FIG. 8 is a schematic piping arrangement of an embodiment of the home cleaning apparatus of the present invention;

in the figure, the position of the upper end of the main shaft,

100. a stationary housing;

110. a drain pipe;

120. a first water inlet pipe; 121. a water pump;

130. an air duct; 131. a fan;

140. a low water level drain pipe;

200. a rotating member; 210. a first through hole; 220. A second through hole;

230. a water outlet; 231. a spray arm;

300. a seal member;

310. a sealing body; 320. sealing the opening; 330. a sealing convex ring;

400. a drive section; 410. a drive motor; 420. a driving wheel; 430. a driven wheel;

500. a switch member.

A washing cylinder;

700. installing a base;

710. a water collection tank; 711. a water return pipe; 712. a second water inlet pipe; 713. a water inlet pump.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically coupled, may be directly coupled, or may be indirectly coupled through an intermediary. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the utility model. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

As shown in fig. 1-2, the present invention provides a fluid conversion apparatus with a sealing structure, comprising a stationary housing 100, a rotating member 200, and a sealing member 300 located between the stationary housing 100 and the rotating member 200, wherein a housing inner cavity is formed on the stationary housing 100, and the rotating member 200 is rotatably mounted in the housing inner cavity of the stationary housing 100.

A plurality of communicating pipes are formed on the outer wall of the fixed housing 100, a water outlet 230 and a plurality of through holes are formed on the rotating member 200, the water outlet 230 is located at the top of the rotating member 200, the plurality of through holes are formed on the side wall of the rotating member 200, and the plurality of through holes are communicated with the water outlet 230 while being communicated with each other.

The communication pipeline on the fixed shell 100 is communicated with the inner cavity of the shell, and different communication pipelines are communicated with different through holes formed on the rotating part 200 under different working states; a sealing member 300 is formed between the rotary member 200 and the stationary housing 100 to seal the stationary housing 100 and the rotary member 200.

As shown in fig. 3, in one embodiment, the sealing member 300 is connected to the inner wall of the stationary housing 100, and includes a sealing body 310 and a plurality of sealing ports 320 formed on the sealing body 310, wherein the plurality of sealing ports 320 are adapted to the plurality of through holes formed on the rotating member 200, so that when the through holes are in butt joint with the communication pipelines at different positions on the stationary housing 100, the sealing ports 320 are not smaller than the size of the through holes, and thus, resistance or leakage of fluid during the circulation between the stationary housing 100 and the rotating member 200 is prevented.

In order to improve the sealing effect, a plurality of sealing ports 320 of the sealing member are provided with a sealing convex ring 330, the sealing convex ring 330 is closely surrounded on the periphery of the sealing port 320 and protrudes the surface of the sealing main body 310 towards the direction of the rotating component 200, and the sealing convex ring 330 is beneficial to strengthening the connecting pressure between the rotating component 200 and the fixed shell 100 at the corresponding position, and improving the tightness of the connecting position, so as to strengthen the sealing degree during the communication process between the communication port and the communication pipeline.

In another embodiment, the sealing member 300 may be installed on the inner wall of the fixed casing 100, or may be installed on the outer wall of the rotating member 200, wherein each sealing port 320 corresponds to a plurality of through holes on the rotating member 200 one by one, and the position of each sealing port 320 is desired to be fixed, and each sealing port 320 is larger than the corresponding through hole, so as to avoid resistance to fluid flow, and in this installed state, the sealing convex ring 330 of the sealing member 300 protrudes from the surface of the sealing main body 310 in the direction of the fixed casing 100.

In still another embodiment, as shown in fig. 4, the sealing member 300 is a plurality of sealing rings formed on the inner wall of the stationary casing 100, the size of the plurality of sealing rings is ensured to be not smaller than the size of each through hole on the rotating member 200, and the plurality of sealing rings seal the outer side of the through hole on the rotating member 200 and the communication pipeline in the corresponding working state, and may also prevent the fluid leakage.

A plurality of sealing rings may be provided on the outer edge of the through-hole of the rotating member 200, in addition to the inner wall of the stationary housing.

The rotating member 200 is rotatably installed in the fixed housing 100 by the driving part 400, a water outlet 230 is formed above the rotating member 200, a spray arm 231 is connected above the water outlet 230, the washing water in the rotating member 200 is output from the spray arm 231 into the washing cylinder 600 through the water outlet 230, and the to-be-cleaned device in the washing cylinder 600 is washed.

The rotating part 200 is connected with a driving part 400, the rotating part 200 is rotated by the driving part 400, the driving part 400 comprises a driving motor 410, a driving wheel 420 connected with the driving motor 410 and a driven wheel 430 connected with the driving wheel 420 in a matching manner, the driven wheel 430 is fixedly connected with the rotating part 200, and the driving motor 410 is fixed in the mounting base 700.

The driving motor 410 moves to drive the driving wheel 420 to rotate, the driving wheel 420 drives the driven wheel 430 to rotate, so as to drive the rotating part 200 coaxially mounted with the driven wheel 430, and the rotating part 200 moves at a certain angle along with the rotating part and is communicated with different communicating pipes positioned on the fixed shell 100, thereby realizing different functions.

A switch 500 is formed outside the fixed casing 100 for controlling the on/off of the driving motor 410, and thus controlling the rotation angle of the rotating member 200 with respect to the fixed casing 100.

The utility model also provides household cleaning equipment, which comprises a washing barrel 600, wherein the washing barrel 600 is used for containing the appliance to be cleaned, the bottom of the washing barrel 600 is provided with a mounting base 700, and a flushing component is arranged in the mounting base 700; the flushing assembly includes a stationary housing 100 and the fluid switching device described above having a sealing structure formed therein.

The flushing assembly comprises a water pump 121 and a fluid switching device connected with the water pump 121; the flushing assembly delivers the fluid in different lines to the washing drum 600 through the fluid switching device to flush the appliance to be cleaned, or the flushing assembly discharges the fluid in the washing drum 600 to the outside through the fluid switching device.

As shown in fig. 5 and 6, the plurality of communication pipes on the stationary housing 100 include a first water inlet pipe 120 and a water outlet pipe 110, the plurality of through holes on the rotating member 200 include a first through hole 210 and a second through hole 220, the first water inlet pipe 120 is used for flushing the device to be washed in the washing drum 600 through the rotating member 200, and the water outlet pipe 110 is used for discharging the liquid remaining in the rotating member 200.

The included angle between the first water inlet pipe 120 and the water outlet pipe 110 is 30-180 degrees, and the included angle between the first through hole 210 and the second through hole 220 is equal to the included angle between the first water inlet pipe 120 and the water outlet pipe 110.

For example, the following steps are carried out: the first through hole 210 and the second through hole 220 are formed on the surface of the rotating part 200 and located on the same circumferential line, and the included angle between the positions of the first through hole 210 and the second through hole 220 is designed to be 90 degrees; correspondingly, the first water inlet pipe 120 and the water outlet pipe 110 on the fixed casing 100 are also at an angle of 90 degrees with respect to each other.

The positions of the first water inlet pipe 120 and the drain pipe 110 are also on the same circumferential surface and are the same as the heights of the first through hole 210 and the second through hole 220, so that the first through hole 210 and the second through hole 220 are communicated with the first water inlet pipe 120 and the drain pipe 110 after rotating to corresponding angles.

When in the washing stage, the first water inlet pipe 120 is communicated with the second through hole 220, and at this time, the second through hole 220 is closed by the outer wall of the stationary housing 100, and the water outlet pipe 110 is also closed by the stationary housing 100.

When the water discharging stage is performed, the water discharging pipe 110 is communicated with the second through hole 220, and at this time, the first through hole 210 is communicated with the first water inlet pipe 120, so that the water remaining in the rotating member 200 and the first water inlet pipe 120 is discharged.

In some embodiments of the present application, the fixed casing 100 is further provided with a low water level drain pipe 140, an included angle between the positions of the low water level drain pipe 140 and the drain pipe 110 is the same as an included angle between the positions of the first through hole 210 and the second through hole 220, and the low water level drain pipe 140 is communicated with the water pump housing.

When it is necessary to discharge the residual water in the water pump housing, the first through hole 210 is communicated with the drain pipe 110, and in the draining stage, the low water level drain pipe 140 is communicated with the second through hole 220, and the residual washing water in the water pump housing is discharged while being drained.

In other embodiments, an air pipe 130 is further disposed above the low water level drain pipe 140, the blower 131 is connected to the outside of the air pipe 130, and in an operating state, the air pipe 130 and the low water level drain pipe 140 are simultaneously communicated with the rotating part 200.

When the low water level drain pipe 140 is communicated with the second through hole 220, the air pipe 130 is also communicated with the second through hole 220, the fan 131 operates, the dry air enters the rotating part 200 through the air pipe 130, and is conveyed into the washing drum 600 from the water outlet 230, and the washed and cleaned appliance is dried.

When the included angle between the first through hole 210 and the second through hole 220 is designed to be 90 degrees; when the included angle between the first water inlet pipe 120 and the water outlet pipe 110 is also 90 degrees, the distance between the design of the low water level water outlet pipe 140 and the air pipe 130 and the water outlet pipe 110 is also 90 degrees, so that when the water outlet pipe 110 is communicated with the first through hole 210, the air pipe 130 and the low water level water outlet pipe 140 can be communicated with the second through hole 220.

As shown in fig. 7 and 8, in order to recycle the washing water, a water collector is further disposed in the mounting base 700, the water collector is located below the washing drum 600, and the washing water after washing the ware to be cleaned flows back into the water collector, and is filtered and reused.

Specifically, a water collecting groove 710 and a water returning hole are formed in the water collector, the water collecting groove 710 is opened upward, and is formed in a structure recessed downward from the bottom of the washing tub 600 so as to collect the washing water, a water returning pipe 711 is connected below the water returning hole, the water returning pipe 711 is connected to the fixed housing 100, and the washing water is further introduced into the rotating member 200 through a communication hole formed in the rotating member 200.

The end of the water return pipe 711 is connected to the water pump 121, and is connected to the first water inlet pipe 120 through the water pump 121, and further communicated with the stationary housing 100, and the water in the water collecting tank 710 enters the rotating member 200 through the water return pipe 711, the water pump 121, and the first water inlet pipe 120.

This water pump 121 collects into water, drainage and return water function in an organic whole, has reduced water pump 121's design, practices thrift the cost, and the integrated level is higher, has also reduced the crisscross complicated scheduling problem of pipeline that pipeline lug connection caused.

The washing device further comprises a second water inlet pipe 712, wherein the second water inlet pipe 712 is used for directly feeding water from the outside, and the outside water is continuously fed into the rotating part 200 together with the return water in the water collecting tank 710 for continuous washing.

The second water inlet pipe 712 is communicated with the water collecting tank 710, and the second water inlet pipe 712 is externally connected to the water inlet pump 713, and transfers the external washing water into the rotating part 200 through the water return pipe 711, the water pump 121, and the first water inlet pipe 120.

Next, with reference to the drawings, taking an included angle between the first through hole 210 and the second through hole 220 as 90 degrees as an example, the technical solution related to the present application will be further described;

in this case, the angle between the first water inlet pipe 120 and the water outlet pipe 110 and the angle between the water outlet pipe 110 and the low water level water outlet pipe 140 on the fixed casing 100 are also 90 degrees, respectively, and the arrangement angle is merely one embodiment provided for explaining a specific process and is not limited to the 90 degree angle.

The initial water inlet process:

in the initial water inlet washing process, the driving motor 410 drives the rotating part 200 to rotate, so as to communicate the first water inlet pipe 120 with the second through hole 220, at this time, the water outlet pipe 110, the low water level water outlet pipe 140 and the air pipe 130 are blocked by the outer wall of the rotating part 200, and the first through hole 210 is blocked by the inner wall of the fixed shell 100.

The device to be cleaned is placed in the washing cylinder 600, the water inlet pump 713 and the water pump 121 are both opened, the washing water is input into the water collecting tank 710 from the second water inlet pipe 712, is output into the water return pipe 711 through the water return port below the water collecting tank 710, enters the rotating part 200 through the second through hole 220 from the first water inlet pipe 120 after passing through the water pump 121, enters the spray arm 231 from the water outlet 230 of the rotating part 200, is sprayed out of the spray arm 231 onto the appliance to be cleaned, and washes the appliance to be cleaned.

And (3) mixing water inlet process:

when the washing water after washing flows back to the water collecting tank 710, after being filtered by the filtering device, the washing water flows back from the water returning port of the water collecting tank 710 to the rotating member 200 together with the washing water entering from the outside, and flows back to the water returning pipe 711, the water pump 121 and the first water inlet pipe 120, and the spraying and washing are continued.

And (3) a drainage process:

the driving motor 410 rotates the rotating member 200 clockwise or counterclockwise by 90 degrees, at this time, the second through hole 220 is communicated with the water discharging pipe 110, the first through hole 210 is communicated with the first water inlet pipe 120, the low water level water discharging pipe 140 and the air pipe 130 are still plugged by the outer wall of the rotating member 200 at this time, the water discharging pipe 110 discharges the water in the rotating member 200, and at this time, the recovered water in the water collecting tank 710 continuously flows into the rotating member 200 through the first water inlet pipe 120 and is discharged out of the device.

And (3) a low water level drainage process:

the driving motor 410 drives the rotating part 200 to rotate 90 degrees counterclockwise or clockwise, at this time, the water discharging pipe 110 is communicated with the first through hole 210, the low water level water discharging pipe 140 and the fan 131 are communicated with the second through hole 220, the low water level water discharging pipe 140 inputs the residual water at the low water level in the casing of the water pump 121 into the rotating part 200, and then the residual water is discharged out of the equipment through the water discharging pipe 110, meanwhile, the fan 131 is opened, the dry air enters the rotating part 200 through the air pipe 130, enters the washing drum 600 from the water outlet 230 of the rotating part 200, and the cleaned appliance is dried.

According to the technical scheme, the water pump 121 and the pipeline are utilized to the maximum degree, the structure of the equipment is simplified, the size of the equipment is reduced, the cost of the equipment is reduced, and the practicability is higher.

In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention, and therefore, the scope of the present invention shall be subject to the claims.

Claims (10)

1. A fluid conversion device with a sealed structure, comprising:

the fixed shell is provided with a shell inner cavity, and a plurality of communicating pipelines are formed on the outer wall of the fixed shell;

the rotating part is rotatably arranged in the shell inner cavity of the fixed shell, a water outlet and a plurality of through holes are formed in the rotating part, and the through holes are communicated with the water outlet;

the driving part is connected with the rotating component and is used for driving the rotating component to rotate;

a sealing member formed between the stationary housing and the rotating member for sealing the stationary housing and the rotating member.

2. The fluid conversion device with a sealing structure according to claim 1,

the sealing element is connected to the inner wall of the fixed shell or the outer wall of the rotating component and comprises a sealing main body and a plurality of sealing ports formed in the sealing main body, and the plurality of sealing ports are matched with the plurality of through holes in the rotating component.

3. The fluid conversion device with a sealing structure according to claim 2,

it is a plurality of the department of sealing all is provided with sealed bulge loop, sealed bulge loop seals and surrounds the periphery of sealing, and the protrusion sealed main part surface is used for strengthening the through-hole with the sealed effect of intercommunication pipeline intercommunication in-process.

4. The fluid conversion device with a sealing structure according to claim 1,

the sealing elements are a plurality of sealing rings formed on the inner wall of the fixed shell or the outer wall of the rotating component, and the sealing rings are matched with the through holes in the rotating component in size.

5. The fluid conversion device with a sealing structure according to claim 1,

the driving part comprises a driving motor, a driving wheel connected with the driving motor and a driven wheel connected with the driving wheel in a matching way, the driving wheel and the driven wheel are both in a gear structure, and the driven wheel is fixedly connected with the rotating part;

and a switch part is formed on the outer side of the fixed shell and used for controlling the switch of the driving motor so as to control the rotation angle of the rotating part relative to the fixed shell.

6. A household cleaning appliance comprising:

the washing device comprises a washing barrel, wherein the bottom of the washing barrel is provided with a mounting base;

a flushing assembly mounted within the mounting base; it is characterized in that the preparation method is characterized in that,

the flushing assembly comprises a water pump and a fluid switching device with a sealing structure according to any one of claims 1-5 connected to the water pump.

7. Household cleaning device according to claim 6,

the plurality of communicating pipelines on the fixed shell comprise a first water inlet pipe and a water outlet pipe, and the plurality of through holes on the rotating part comprise a first through hole and a second through hole;

the position contained angle of first inlet tube with the drain pipe is 30 degrees-180 degrees, first through-hole and the position contained angle between the second through-hole with the position contained angle of first inlet tube with the drain pipe equals.

8. Household cleaning device according to claim 7,

the fixed shell is further provided with a low-water-level drain pipe, an included angle between the low-water-level drain pipe and the drain pipe is the same as an included angle between the first through hole and the second through hole, and the low-water-level drain pipe is communicated with the water pump shell.

9. Household cleaning device according to claim 8,

an air pipe is also arranged above the low water level drain pipe, the outer side of the air pipe is connected with a fan, and the air pipe and the low water level drain pipe are simultaneously communicated with the rotating part in a working state;

still be provided with the water collector in the installation base, be formed with water catch bowl and return water mouth in the water collector, return water mouth below is connected with the wet return, the wet return with fixed casing intercommunication.

10. Household cleaning device according to claim 9,

the water return pipe is connected with the first water inlet pipe through the water pump and further communicated with the fixed shell, and water in the water collecting tank enters the rotating part through the water return pipe, the water pump and the first water inlet pipe;

still include the second inlet tube, the second inlet tube with the water catch bowl intercommunication, the second inlet tube links into the water pump outward, passes through external washing water the wet return the water pump and first inlet tube is carried in the rotating part.

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