CN110644200B

CN110644200B - Washing device with self-cleaning function

Info

Publication number: CN110644200B
Application number: CN201810671979.3A
Authority: CN
Inventors: 赵志强; 许升; 吕佩师; 单世强
Original assignee: Qingdao Haier Washing Electric Appliance Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Washing Electric Appliance Co Ltd; Haier Smart Home Co Ltd
Priority date: 2018-06-26
Filing date: 2018-06-26
Publication date: 2023-07-14
Anticipated expiration: 2038-06-26
Also published as: CN110644200A

Abstract

The invention belongs to the technical field of washing equipment, and aims to solve the problems that a filter screen of the existing washing equipment is not thoroughly cleaned and wire scraps block meshes. To this end, the present invention provides a washing apparatus with self-cleaning function, comprising: a water containing cylinder provided with a water outlet; the first pipeline, the middle pipeline and the fourth pipeline are sequentially communicated with the water outlet and form a filtering channel; the second pipeline, the middle pipeline and the third pipeline are sequentially communicated with the water outlet and form a cleaning channel; a filter assembly disposed in the intermediate conduit and configured to filter lint from the water as the water flows along the filter channel; as the water flows along the cleaning channel, the water can shed lint attached to the filter assembly. The washing equipment provided by the invention can realize self-cleaning of the filter assembly while draining water, omits a complicated procedure of manual cleaning, avoids secondary pollution to clothes caused by wire scraps, and prolongs the service life of the filter assembly.

Description

Washing device with self-cleaning function

Technical Field

The invention relates to the technical field of washing equipment, in particular to washing equipment with a self-cleaning function.

Background

The washing machine is a household appliance indispensable for people's daily life. Taking a drum washing machine as an example, an inner drum containing clothes is driven to rotate by a motor, washing water is driven to circularly flow by a pump in the process, and the circulating water continuously agitates the clothes, so that the clothes are cleaned. In the cleaning process, clothes are rubbed with each other, and thread scraps such as cotton and silk inevitably fall into water, if the thread scraps are not filtered, the thread scraps can adhere to the surfaces of the clothes, so that secondary pollution of the clothes is caused.

The existing washing machine, whether it is pulsator type or drum type, is provided with a filter screen for intercepting filter thread scraps in the water circulation process. For pulsator washing machines, a pocket filter is typically provided at the side wall of the tub to filter lint as circulating water enters the tub. For a drum washing machine, a filter screen is generally disposed outside the inner drum to filter lint in the circulating water.

After the conventional washing machine is used for a long time, the problems that a filter screen is not thoroughly cleaned and wire scraps block meshes often occur, and great trouble is brought to users.

Accordingly, there is a need in the art for a new washing apparatus to solve the above-mentioned problems.

Disclosure of Invention

In order to solve the above problems in the prior art, that is, in order to solve the problems of incomplete cleaning of the filter screen and clogging of the mesh with lint of the existing washing apparatus, the present invention provides a washing apparatus having a self-cleaning function, the washing apparatus comprising: a water containing cylinder provided with a water outlet; a first pipe, a second pipe, an intermediate pipe, a third pipe, and a fourth pipe, the first pipe and the second pipe being capable of communicating with the water outlet; the first pipeline is sequentially communicated with the middle pipeline and the fourth pipeline to form a filtering channel; the second pipeline is sequentially communicated with the middle pipeline and the third pipeline to form a cleaning channel; a filter assembly disposed in the intermediate conduit, the filter assembly being configured to filter lint from the water as the water flows along the filter channel; when water flows along the cleaning channel, the water can reversely clean the filter assembly, so that the thread scraps attached to the filter assembly are separated.

In a preferred embodiment of the above washing apparatus, the first conduit and the second conduit meet before being connected to the water outlet and thus form a three-way conduit; or the water outlet comprises a first water outlet and a second water outlet, and the first pipeline and the second pipeline are respectively connected with the first water outlet and the second water outlet.

In a preferred embodiment of the above washing apparatus, valves are provided in both the first pipe and the second pipe, and the valves are provided so as to be able to selectively connect the first pipe or the second pipe.

In a preferred embodiment of the above washing apparatus, the first pipe and/or the second pipe comprises a tapered pipe section, and the valve comprises a floating member provided in the tapered pipe section, the floating member being provided to be movable in position to turn off or on the tapered pipe section in response to a change in water pressure in the tapered pipe section.

In a preferred embodiment of the above washing apparatus, a stopper member is provided in the tapered pipe section, the stopper member being provided to prevent the floating member from coming out of the tapered pipe section when the floating member is located at the thick end of the tapered pipe section and is engaged with the tapered pipe section.

In a preferred embodiment of the above washing apparatus, the floating member is a sphere or a cone.

In a preferred embodiment of the above washing apparatus, the valve is a swing valve provided at a junction of the three-way pipe so as to selectively close or open the first pipe or the second pipe.

In a preferred technical solution of the above washing apparatus, the washing apparatus includes a first pump device, and a first pump cavity is formed in a pump body of the first pump device, and the first pump cavity is communicated with the first pipe, the first end of the intermediate pipe, and the third pipe.

In a preferred technical solution of the above washing apparatus, the washing apparatus further includes a second pump device, and a second pump cavity is formed in a pump body of the second pump device, and the second pump cavity is communicated with the second pipe, the second end of the intermediate pipe, and the fourth pipe.

In a preferred technical scheme of the washing equipment, the first pump device is a drainage pump, and the second pump device is a circulating pump; the third pipeline is a drain pipe, and the fourth pipeline is a circulating pipe.

As can be appreciated by those skilled in the art, in a preferred technical scheme of the present invention, a first pipe, a middle pipe and a fourth pipe are sequentially connected to form a filtering passage, a second pipe, a middle pipe and a third pipe are sequentially connected to form a cleaning passage, and a filter assembly is arranged in the middle pipe, so that in a washing process of a washing machine, the first pipe is connected to the filtering passage, and impurities such as lint are filtered in a process of circulating washing water; after the washing procedure is finished and the water draining procedure is entered, the second pipeline is communicated with the cleaning channel, so that water to be drained flows through the middle channel along the opposite direction, the filter assembly is reversely flushed by the water to be drained, self-cleaning of the filter assembly is realized while water is drained, the complicated procedure of manual cleaning is omitted, secondary pollution to clothes caused by wire scraps is avoided, and meanwhile, the service life of the filter assembly is prolonged.

Further, by adopting the three-way pipeline, the installation space can be effectively saved, the installation convenience is improved, and meanwhile, the replacement and the maintenance are convenient.

Furthermore, valves capable of being selectively communicated with the first pipeline or the second pipeline are arranged in the first pipeline and the second pipeline, and the switching of the filtering channel and the cleaning channel is realized through controlling the valves, so that the self-cleaning of the filter assembly can be realized by utilizing a drainage program, and water resources are fully utilized.

Still further, through setting up some or all pipeline sections in first pipeline and the second pipeline as the toper structure, set up floating member in the pipe, and set up the backstop component and prevent floating member and deviate from the pipe, make can utilize the pressure differential of floating member both sides to promote the removal of two floating members, and combine the toper pipeline section to realize the on-off control of pipeline, need not the power supply and can realize the switching of flow path in different pipelines, make the water flow that flows through the filter subassembly switching over, thereby realize the self-cleaning of filter subassembly, greatly benefits the consumption of the energy has been reduced.

Further, by adopting the swing valve and arranging the swing valve at the junction of the three-way pipeline, the flow path can be conveniently switched between the first pipeline and the second pipeline without arranging a plurality of electric control valves, thereby reducing hardware cost and reducing control difficulty.

Further, the two sides of the floating ball are driven by the drainage pump and the circulating pump to generate pressure difference, and the water flow is utilized to push the floating member to move, so that the valve is opened and closed, additional driving is not required to be arranged for the valve, and the hardware cost is saved.

Drawings

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings in conjunction with a drum type washing machine. In the accompanying drawings:

fig. 1 is a schematic vertical sectional view of a washing machine of the present invention, in which a circulation path of washing water is shown;

fig. 2 is a schematic vertical sectional view of the washing machine of the present invention, in which a drainage path of washing water is shown;

FIG. 3 is one of the structural schematic diagrams of the filter assembly of the present invention, showing one embodiment of the filter member;

FIG. 4 is a second schematic structural view of the filter assembly of the present invention, showing one embodiment of the connecting member;

FIG. 5 is a schematic front view of FIG. 4;

FIG. 6 is a schematic view in section A-A of FIG. 5;

list of drawings:

1. a three-way pipe; 11. a first pipe; 111. a first floating member; 12. a second pipe; 121. a second floating member;

2. a first pump device; 21. a first pump chamber;

3. an intermediate pipe; 31. a filtering body; 311. a filter member; 312. a connecting member; 3121. circumferential connecting ribs; 3122. radial connecting ribs; 313. a water flow channel; 32. a housing;

4. a second pump device; 41. a second pump chamber;

5. a fourth conduit;

6. a third conduit;

1000. a washing machine; 1001. a housing; 1002. a motor; 1003. an inner cylinder; 1004. an outer cylinder; 10041. a water outlet; 1005. a door body; 1006. a window pad; 1007. and (5) footing.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings in conjunction with a drum type washing machine. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention. For example, although the following embodiments are explained in connection with a drum type washing machine, this is not limitative, and the technical solution of the present invention is equally applicable to other types of washing apparatuses, such as washing and drying integrated machines, pulsator type washing machines, etc., and such changes in application objects do not depart from the principle and scope of the present invention.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better illustration of the invention. It will be understood by those skilled in the art that the present invention may be practiced without some of these specific details. In some instances, components in drum type washing machines well known to those skilled in the art have not been described in detail in order to highlight the gist of the present invention.

The invention provides a lint filter assembly and washing equipment provided with the lint filter assembly, aiming at solving the problems of blockage and inconvenient cleaning of a filter screen.

Referring to fig. 1 to 6, fig. 1 is a schematic vertical sectional view of a washing machine of the present invention, in which a circulation path of washing water is shown; fig. 2 is a schematic vertical sectional view of the washing machine of the present invention, in which a drainage path of washing water is shown; FIG. 3 is one of the structural schematic diagrams of the filter assembly of the present invention, showing one embodiment of the filter member; FIG. 4 is a second schematic structural view of the filter assembly of the present invention, showing one embodiment of the connecting member; FIG. 5 is a schematic front view of FIG. 4; fig. 6 is a schematic view of the A-A cross section of fig. 5.

The left side in fig. 1 and 2 is the front of the washing machine, and the right side is the rear of the washing machine.

Referring to fig. 1, the drum-type washing machine 1000 in the present embodiment includes a housing 1001, an outer tub 1004 for containing water is provided in the housing 1001, a water outlet 10041 is provided at the bottom of the outer tub 1004, and the water outlet 10041 is used for discharging the washing water accumulated in the outer tub 1004 into a subsequent filtering system or drainage system. An inner drum 1003 for holding laundry is provided in the outer drum 1004, and a motor 1002 located at the rear of the outer drum 1004 is used to drive the inner drum 1003 to rotate, and wash water can be injected into the inner drum 1003 through the inner drum 1003 and the drum mouth of the outer drum 1004, and laundry can be held. The front part of the washing machine 1000 is provided with a door 1005 and a window pad 1006, the door 1005 is provided with an observation window for observing the internal environment of the washing machine 1000, and the door 1005 and the window pad 1006 cooperate to realize the isolation of the inner cylinder 1003, the outer cylinder 1004 and the external environment. Feet 1007 are provided at the bottom of the housing 1001 to support the body of the entire washing machine 1000.

The drum type washing machine 1000 further includes: a first conduit 11, a second conduit 12, an intermediate conduit 3, a third conduit 6, a fourth conduit 5, a first pump device 2 and a second pump device 4.

The first and

second pipes

11 and 12 can communicate with the water outlet 10041. Specifically, there are various ways in which the first pipe 11 and the second pipe 12 communicate with the water outlet 10041. Referring to fig. 1, the first pipe 11 and the second pipe 12 meet before being connected to the water outlet 10041 and thus form the three-way pipe 1, and a main pipe section (not shown) of the three-way pipe 1 is connected to the water outlet 10041, so that the first pipe 11 and the second pipe 12 share a part of the pipes, thereby not only facilitating the connection of the first pipe 11 and the second pipe 12 to the water outlet 10041, but also saving installation space.

Alternatively, two water outlets may be provided, a first water outlet and a second water outlet (not shown), respectively, the first pipe 11 being connected to the first water outlet, and the second pipe 12 being connected to the second water outlet, so as to achieve connection of the first pipe 11 and the second pipe 12 to the water outlets.

There are various ways to achieve the turning off and on of the first pipe 11 and the second pipe 12. Valves may be provided in the first and

second pipes

11, 12, respectively, for example, by controlling the valves to switch the pipes on and off. The valve can be an electric control ball valve, a swing valve, a ball valve without a power source, a butterfly valve and the like.

Specifically, referring to fig. 1, a part of the first pipe 11 and a part of the second pipe 12 in the three-way pipe 1 are tapered, and a floating member capable of moving in position according to the change of the water pressure in the pipe is arranged in the tapered pipe, and the floating member may be a sphere or a cone adapted to the tapered pipe. Through the movement of the sphere or the cone, the contact or separation between the sphere or the cone and the inner wall of the cone pipe section is realized, so that the effect of closing or connecting the pipeline is achieved, and the effect of closing the valve is achieved. Further, a stopper member (not shown) is provided in the tapered pipe section, such as a stopper projection provided at the thick end of the tapered pipe section, and the floating member is moved toward the thick end of the tapered pipe section by the thrust of the water flow, i.e., the pipe is connected, and when the floating member is moved to the position of the stopper projection, the stopper projection prevents the floating member from coming out of the tapered pipe section, and the pipe is in the connected state. By arranging part or all of the pipe sections in the first pipeline and the second pipeline into a conical structure, arranging the floating members in the pipe and arranging the stop members to prevent the floating members from being separated from the pipe, the pressure difference at two sides of the floating members can be utilized to push the movement of the two floating members, the on-off control of the pipelines is realized by combining the conical pipe sections, the switching of the flow paths in different pipelines can be realized without a power source, the water flow flowing through the filter assembly is reversed, the self-cleaning of the filter assembly is realized, and the energy consumption is greatly reduced.

Alternatively, the valve may be a swing valve (not shown) provided at the junction of the three-way pipe 1, which turns off the first pipe 11 and turns on the second pipe 12 when the swing valve swings to the first pipe 11; when the pendulum valve swings to the second pipe 12, the second pipe 12 is shut off, and the first pipe 11 is turned on. Through adopting the pendulum valve to set up the junction at the three-way pipeline with the pendulum valve, can conveniently make the flow path switch between first pipeline and second pipeline, need not to set up a plurality of automatically controlled valves, thereby reduce hardware cost, and can reduce the control degree of difficulty.

In addition, the first pipe 11 or the second pipe 12 may be selectively turned off or on by providing an electric ball valve, a butterfly valve, etc. in the first pipe 11 and the second pipe 12, thereby putting the washing machine 1000 in different operation modes.

The third pipe 6 is used to drain the washing water in the outer tub 1004 to the outside of the machine body.

The fourth pipe 5 is used to inject the filtered washing water into the inner tub 1003 to achieve a circulation flow of the washing water.

A filter assembly is arranged in the intermediate pipe 3. The filter assembly is used for intercepting thread scraps in the water during the circulation of the washing water. The middle pipeline 3 is used for connecting the first pipeline 11 and the fourth pipeline 5, and after the first pipeline 11, the middle pipeline 3 and the fourth pipeline 5 are connected in sequence, a filtering channel for filtering the thread scraps in the washing water is formed; the intermediate duct 3 is also used for connecting the second duct 12 and the third duct 6, and after the second duct 12, the intermediate duct 3 and the third duct 6 are connected in sequence, a cleaning channel for flushing away lint accumulated in the filter assembly is formed, the intermediate duct 3 serving as a common channel for the filtering channel and the cleaning channel.

In the preferred technical scheme of the invention, the first pipeline, the middle pipeline 3 and the fourth pipeline are sequentially communicated to form a filtering channel, the second pipeline, the middle pipeline 3 and the third pipeline are sequentially communicated to form a cleaning channel, and the filter assembly is arranged in the middle pipeline 3, so that in the washing process of the washing machine, the first pipeline is communicated to connect the filtering channel, and the filtering of impurities such as wire scraps is realized in the process of circulating washing water; after the washing procedure is finished and the water draining procedure is entered, the second pipeline is communicated with the cleaning channel, so that water to be drained flows through the middle channel along the opposite direction, the filter assembly is reversely flushed by the water to be drained, the filter assembly can be self-cleaned while draining water, the complicated procedure of manual cleaning is omitted, secondary pollution to clothes caused by wire scraps is avoided, and the service life of the filter assembly is prolonged.

In particular, referring to fig. 3-6, the filter assembly includes a filter body 31, the filter body 31 including a connection member 312 and a plurality of filter members 311.

Referring to fig. 3, the filtering member 311 is a plurality of rods disposed in parallel, and the cross section of each rod is circular, although the cross section of each rod may be triangular, square, polygonal, or other shapes. The cylindrical rod piece is adopted, so that water flow can fully sweep the surface of the rod piece, the rod piece is washed in all directions, and the back flushing effect is improved. The rods are arranged in a substantially parallel manner so that the water flow channels 313 are formed to be more evenly distributed to enhance the filtering effect.

Referring to fig. 4 and 5, the connection member 312 serves to connect the ends of the filter members 311 such that a gap exists between the filter members 311 and thus a water flow passage 313 is formed. The connection member 312 mainly serves to connect the ends of the filter member 311, and also serves to uniformly split the flow. Referring to fig. 5, the connection member 312 includes radial connection ribs 3122 and circumferential connection ribs 3121, the radial connection ribs 3122 being connected to ends of the rod members to achieve uniform arrangement of the rod members in a radial direction; the circumferential connection ribs 3121 are used to connect circumferentially arranged bars, such that the circumferentially arranged bars can be more evenly arranged by providing the circumferential connection ribs 3121. The radial and

circumferential connection ribs

3122 and 3121 form a mesh structure with the connection member 312, with the plurality of filter members 311 extending from one side of the mesh structure. The filter member 311 and the connection member 312 which are uniformly arranged form the filter body 31 having a brush-like structure, and the formed filter body 31 is connected to the housing 32 by the radial connection ribs 3122. By arranging the connection members 312 in a mesh structure, not only the structural stability of the filter body 31 is enhanced, but also the water flow can be uniformly split to each filter member 311, the deep cleaning of the filter members 311 is realized, and the self-cleaning efficiency of the washing apparatus is improved. By providing the circumferential connection ribs 3121, the circumferentially distributed filter members 311 can be uniformly distributed to ensure uniform distribution of the water flow channels 313; by providing the radial connection ribs 3122, the structure of the filter body 31 can be made more stable, and connection of the filter body 31 and the housing 32 can be achieved through the radial connection ribs 3122.

Alternatively, the connecting member 312 may be made into a spiral circumferential connecting rib (not shown), for example, the connecting member 312 may be made into a long strip shape, one side of the connecting member is uniformly fixed with a rod member to form a comb-like shape, the comb-like structure is wound to form the spiral filtering main body 31, and the filtering main body 31 is fixed on the housing 32 through the radial connecting rib or the circumferential connecting rib, so that the processing of the filtering main body 31 is facilitated, the processing difficulty is reduced, and the production cost is reduced.

Further, the circumferential connection ribs 3121 may be integrally formed with the filter member 311, and the housing 32 is integrally formed with the circumferential connection ribs 3121, or the housing 32 is integrally formed with the radial connection ribs 3122; the circumferential connection rib 3121 is integrally formed with the filter member 311, and the housing 32 and the filter body 31 are engaged with each other.

It should be noted that the housing 32 of the filter assembly may directly form the intermediate passage 3.

In the preferred technical scheme of the invention, a plurality of filter members are densely arranged, one ends of the filter members are connected through the connecting members, so that the filter body forms a brush-like structure, when washing water carrying lint flows through a water flow channel formed by the filter members from one end away from the connecting members, the resistance of the water flow is increased, the speed of the lint moving along with the water flow is slowed down, the lint is blocked in a gap between the filter members before reaching the connecting members, and the lint is adhered to the surfaces of the filter members, so that the lint is filtered; when water flows through the water flow channel along the opposite direction, the resistance that water flow received after entering from one side of the connecting component is reduced, the water flow is accelerated, high-speed water flows along the surface of the filtering component to reversely clean the wire filings, the wire filings attached to the filtering component are dropped, the phenomenon that the wire filings are hung on meshes to block the meshes is avoided, the water flow channel between the filtering components is always kept smooth, the problem of filter screen blockage in the prior art is avoided, the filter assembly can still be kept clean after the washing equipment is used for a long time, and manual cleaning is not needed, so that the user experience is improved.

A first pump device 2 is connected to a first end of the intermediate pipe 3, and a first pump chamber 21 is formed in a pump body of the first pump device 2, and the first pump chamber 21 communicates with the first pipe 11, the first end of the intermediate pipe 3 (i.e., a left end of the intermediate pipe in fig. 1), and the third pipe 6.

A second pump device 4 is connected to the second end of the intermediate pipe 3, and a second pump chamber 41 is formed in the pump body of the second pump device 4, and the second pump chamber 41 communicates with the second pipe 12, the second end of the intermediate pipe 3 (i.e., the right end of the intermediate pipe in fig. 1), and the fourth pipe 5.

Specifically, the first pump device 2 may be a drain pump, the second pump device 4 may be a circulation pump, and accordingly, the third pipe 6 is a drain pipe of the washing machine 1000, and the fourth pipe 5 is a circulation pipe of the washing machine 1000. The pump mouth of the drainage pump connected with the drainage pipe can be provided with a valve for controlling the on-off of the drainage pipe, or the drainage pipe can be provided with a valve for controlling the on-off of the drainage pipe. A valve for controlling the on-off of the circulating pipe can be arranged at the pump port of the circulating pump connected with the circulating pipe, or a valve for controlling the on-off of the circulating pipe can be arranged in the circulating pipe. The two sides of the floating component are driven by the drainage pump and the circulating pump to generate pressure difference, and the floating component is pushed to move by water flow, so that the valve is opened and closed, additional driving is not required to be arranged for the valve, and the hardware cost is saved.

The thread scraps are filtered as follows: referring to fig. 1, a certain amount of water is injected into the outer tub 1004 through the water injection port of the washing machine 1000, and the drain pipe is in a closed state; starting a circulating pump, generating negative pressure in a pump cavity of the circulating pump, and enabling a first floating member 111 positioned in the first pipeline 11 to move towards the thick end of the taper pipe section under the action of suction force so as to connect the first pipeline 11; the water in the first pipeline 11 flows through the pump cavity of the drainage pump and the filter assembly and then enters the pump cavity of the circulating pump, so that the water pressure in the pump cavity of the circulating pump is increased, the second floating member 121 is pushed to move towards the thin end of the taper pipe section of the second pipeline 12, the second pipeline 12 is turned off, the first pipeline 11 is turned on, the second pipeline 12 is turned off, the washing water in the inner barrel 1003 flows through the middle pipeline 3 from the first pipeline 11, and after being filtered by the filter assembly, the washing water is conveyed to the inner barrel 1003 through the fourth pipeline 5 and sprayed to clothes. By continuously circulating the washing water, lint in the water is filtered by the filter assembly, so that the lint content in the washing water is reduced, and the dirt on the laundry is prevented from being polluted.

After the washing process is completed, the washing machine 1000 enters a drain process, in which the first pipe 11 is in an on state and the second pipe 12 is in an off state. Referring to fig. 2, the circulation pump is turned off, the drain pump is turned on, a pump chamber of the drain pump generates negative pressure, and the second floating member 121 moves toward the thick end by suction force, thereby turning on the second pipe 12; the water flowing out of the water outlet 10041 flows into the middle pipeline 3 after passing through the pump cavity of the circulating pump and then flows into the pump cavity of the drainage pump; the water flowing into the pump cavity of the drain pump increases the water pressure in the pump cavity, the water pressure pushes the first floating member 111 to move towards the thin end of the taper pipe section, so that the first pipeline 11 is closed, the water flows to the drain pump from the second pipeline 12 through the middle pipeline 3, the filter assembly is reversely cleaned, the water with the water pressure inside is discharged to the outside of the washing machine 1000 through the drain pipe connected with the pump cavity of the drain pump, and the automatic cleaning of impurities such as wire scraps is realized in the drain process.

Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will fall within the scope of the present invention.

Claims

1. A washing apparatus having a self-cleaning function, characterized in that the washing apparatus comprises:

a water containing cylinder provided with a water outlet;

a first pipe, a second pipe, an intermediate pipe, a third pipe, and a fourth pipe, the first pipe and the second pipe being capable of communicating with the water outlet; the first pipeline is sequentially communicated with the middle pipeline and the fourth pipeline to form a filtering channel; the second pipeline is sequentially communicated with the middle pipeline and the third pipeline to form a cleaning channel;

a filter assembly disposed in the intermediate conduit, the filter assembly being configured to filter lint from the water as the water flows along the filter channel; when water flows along the cleaning channel, the water can reversely clean the filter assembly, so that the thread scraps attached to the filter assembly are separated;

wherein the filter assembly comprises a filter body comprising a connection member for connecting ends of the filter members such that there is a gap between the filter members and thus a water flow channel is formed, and a plurality of filter members extending from one side of the mesh structure, the filter members being a plurality of bars arranged substantially in parallel.

2. A washing apparatus according to claim 1, wherein the first conduit and the second conduit meet before being connected to the water outlet and thereby form a three-way conduit; or alternatively

The water outlet comprises a first water outlet and a second water outlet, and the first pipeline and the second pipeline are respectively connected with the first water outlet and the second water outlet.

3. The washing apparatus of claim 2, wherein a valve is provided in each of the first and second conduits, the valve being arranged to enable selective access to either the first conduit or the second conduit.

4. A washing apparatus according to claim 3 wherein the first and/or second conduit comprises a tapered pipe section, the valve comprising a float member disposed within the tapered pipe section, the float member being arranged to be movable in position to switch the tapered pipe section off or on in response to a change in water pressure within the tapered pipe section.

5. The washing apparatus of claim 4, wherein a stop member is disposed in the tapered pipe section, the stop member being configured to prevent the float member from backing out of the tapered pipe section when the float member is positioned at the butt end of the tapered pipe section and engages the tapered pipe section.

6. The washing apparatus of claim 5, wherein the floating member is a sphere or cone.

7. A washing apparatus according to claim 3, wherein the valve is a pendulum valve disposed at the junction of the tee pipes to selectively close or open the first or second pipes.

8. The washing apparatus of any one of claims 1-7, comprising a first pump device having a first pump chamber formed therein, the first pump chamber in communication with each of the first conduit, the first end of the intermediate conduit, and the third conduit.

9. The washing apparatus of claim 8, further comprising a second pump device having a second pump chamber formed in a pump body of the second pump device, the second pump chamber in communication with each of the second conduit, the second end of the intermediate conduit, and the fourth conduit.

10. The washing apparatus of claim 9, wherein the first pump device is a drain pump and the second pump device is a circulation pump; the third pipeline is a drain pipe, and the fourth pipeline is a circulating pipe.