CN116497571A

CN116497571A - Clothes treating apparatus

Info

Publication number: CN116497571A
Application number: CN202210055451.XA
Authority: CN
Inventors: 梁泉; 程宝珍; 许梁
Original assignee: Hefei Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Current assignee: Hefei Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Priority date: 2022-01-18
Filing date: 2022-01-18
Publication date: 2023-07-28

Abstract

The invention relates to the technical field of clothes treatment equipment, in particular to clothes treatment equipment, and aims to solve the problems that the conventional clothes treatment equipment is easy to cause secondary pollution of clothes and waste of water resources in the operation process, so that the user experience is poor. The present invention provides a laundry treating apparatus including a tub and a drain part, the drain part including: the first sub-drain, it includes first pipeline, the import of first pipeline communicates with the interior environment of the flourishing cask, the export of first pipeline communicates with the outside environment of flourishing cask, wherein, first pipeline sets up to its import can be in different positions along vertical direction to: when the water body in the water containing barrel is at different liquid levels, at least one part of foreign matters floating on the surface layer of the water body can enter the first pipeline through the inlet of the first pipeline and be discharged. The clothes treatment equipment provided by the invention can effectively avoid secondary pollution to clothes, improves the washing degree of the clothes, and reduces the consumption of water resources.

Description

Clothes treating apparatus

Technical Field

The invention relates to the technical field of clothes treatment equipment, and particularly provides clothes treatment equipment.

Background

The treatment process of laundry by a washing machine or a washing and drying machine generally comprises the following stages: a washing stage, a rinsing stage, and a dehydrating stage, a part of the dryer may also enter a drying stage, a nursing stage, etc. after the dehydrating stage.

There is a drain requirement for both the wash and rinse phases. Taking a washing machine as an example, the washing machine enters a washing stage, it is necessary to discharge contaminated water containing detergent to the outside of the washing machine after the washing is completed. However, the sewage after washing usually has a large amount of dirt such as foam, thread scraps, and the like, and a small part of foam and thread scraps can suspend in the water body, and more float on the surface layer of the water body. The conventional washing machine is provided with a drain port at the bottom of the tub, and sewage is drained from the drain port after washing is completed. In the drainage process, part of foam and thread scraps flow away along with the water body, and part of foam and thread scraps float on the water surface and can be intercepted by clothes soaked in water in the water level descending process, so that secondary pollution of the clothes is caused.

As an improvement, patent application publication No. CN108914488A discloses a washing machine overflow rinsing control method, which includes the steps of: step 1, controlling a washing machine to execute overflow rinsing; step 2, acquiring and judging whether the water level in the barrel of the washing machine exceeds the upper limit water level based on the detection data of the water level sensor; if yes, closing a water inlet valve of the washing machine; step 4, opening the water inlet valve to fill water into the washing machine barrel after the set time; step 5, repeating the steps 2 to 4 until overflow rinsing is finished; wherein the upper limit water level is higher than the overflow water level of the overflow rinsing. It can be seen that the control method firstly feeds water to raise the water level to exceed the overflow water level during the rinsing process, then closes the feed water to drain the water, and feeds water again to exceed the overflow water level after the drainage lasts for a set time, so that a plurality of cycles are performed until the rinsing process is finished. The overflow rinsing control method can enable part of sewage with detergent foam and thread scraps to be discharged from the overflow port, and when the drain valve is blocked by the dirt such as the thread scraps to cause unsmooth drainage, the water inlet valve is not closed and opened frequently due to unsmooth drainage due to the setting of the set time condition.

However, the above-described drainage control method has a certain problem. The user finds that the control method can reduce the probability of secondary pollution of clothes to a certain extent in the using process, but the water consumption is increased, so that the reasonable utilization of resources is not facilitated, and the user experience is reduced.

Disclosure of Invention

The invention aims to solve or at least alleviate the technical problems, namely, the problems that the conventional clothes treatment equipment is easy to cause secondary pollution of clothes and waste of water resources in the operation process, so that the user experience is poor.

In a first aspect, the present invention provides a laundry treating apparatus including a tub and a drain part including: a first sub-drain part including a first pipe, an inlet of which communicates with an inner environment of the tub, an outlet of which communicates with an outer environment of the tub, wherein the first pipe is provided such that an inlet thereof can be at different positions in a vertical direction, so that:

when the water bodies in the water containing bucket are at different liquid levels, at least one part of foreign matters floating on the surface layer of the water bodies can enter the first pipeline through the inlet of the first pipeline and be discharged.

According to the clothes treatment equipment provided by the invention, the first sub-drainage part is arranged, the first sub-drainage part comprises the first pipeline, the inlets of the first pipeline communicated with the inner environment of the water containing barrel are arranged at different positions along the vertical direction, so that the inlets of the first pipeline have the characteristic of unfixed positions, the inlets of the first pipeline can be changed along with the change of the liquid level, particularly the rising of the liquid level and the falling of the liquid level are carried out, the inlets of the first pipeline always correspond to the surface water body, and therefore, before the washing or rinsing is completed, the first pipeline of the first sub-drainage part is controlled to be firstly connected, foreign matters floating in the surface water body enter the first pipeline along with the water body through the inlets of the first pipeline and are discharged from the outlets of the first pipeline, the water draining process is always the surface water body firstly, the problem that the foreign matters in the surface water body at the last stage of the water draining are intercepted by clothes can be effectively avoided, the secondary pollution to the clothes is avoided, the washing degree of the clothes is improved, and the water resource consumption is reduced.

The laundry treatment apparatus may be a washing machine or a washing and drying machine, preferably a pulsator type, or a drum type. Taking a full-automatic pulsator washing machine as an example, the washing machine comprises an outer tub and an inner tub rotatably arranged in the outer tub, wherein the outer tub is a water containing tub and the inner tub is a clothes treatment tub in the working process of the washing machine with the structure. In addition, in order to avoid the problem that dirt is easy to remain between the inner tub and the outer tub of the existing washing machine, a part of the full-automatic pulsator washing machine is only provided with one tub body, the outer tub structure is omitted, the side wall of the tub body is not provided with a through hole communicated with the inner environment of the outer tub, and the washing machine with the structure is used as a water containing tub and a clothes treating tub simultaneously in the working process.

When the laundry treating apparatus is of a non-perforated tub structure, the first sub-drain is provided at an outer sidewall of the tub, and may be rotated in association with rotation of the tub. When the laundry treating apparatus is provided with the outer tub and the inner tub at the same time, the first sub-drain may be provided either at an inner wall surface of the outer tub or at an outer wall surface of the outer tub.

The inlet and the outlet of the first pipeline are arranged in various ways. The inlet of the first pipeline is arranged to be capable of lifting along with the lifting of the water level, and then can be located at different positions along the vertical direction, for example, the inlet of the first pipeline is arranged to be of a movable structure, or the inlet of the first pipeline can be arranged to be multiple along the vertical direction and selectively opened and closed. There may be a plurality of situations at the location of the outlet of the first conduit. For example, the outlet of the first pipeline may be higher than the inlet, and the first pipeline is provided with a water pump to drive the water body to circulate; or the height of the outlet of the first pipeline is lower than that of the inlet, and the self weight of the water body is utilized to promote the water body to circulate in the first pipeline.

It should be noted that, the movable range of the inlet of the first pipe in the vertical direction may be configured as required, and may be movable only in the area of the tub near the upper portion thereof, or may be movable in the areas of the tub near the upper and middle portions thereof, or may be movable in the entire vertical direction of the tub.

The inlet of the first pipeline in the invention is positioned at different positions along the vertical direction, and the inlet is specifically characterized in that: the inlet of the first pipe increases with the increase of the water level in the tub and decreases with the decrease of the water level in the tub, and the height of the inlet of the first pipe is substantially consistent with the trend of the change of the height of the water level in the tub in the vertical direction during this accompanying activity, and the position of the inlet of the first pipe in the horizontal direction may be unchanged or may be changed in a certain range, for example, when the inlet of the first pipe moves relative to the tub in a serpentine-like curve.

There are various implementations in which the inlet of the first pipe is located at different positions in the vertical direction. For example, a plurality of inlets corresponding to different heights can be arranged on the first pipeline, each inlet is independently controlled by a valve, and the opening and closing mechanism of the valve is related to the water level in the barrel, so that the inlet of the first pipeline can be positioned at different positions along the vertical direction along with the change of the water level. Alternatively, the first conduit may be provided in a movable configuration. The movement may be by means of a mechanical driving force or by means of buoyancy. For example, a rack and pinion mechanism is connected to a part of the first pipe, and the rack and pinion mechanism is controlled to operate based on the measured water level in the tub, thereby adjusting the inlet height of the first pipe. Of course, other types of transmission mechanisms such as chain mechanisms, linkages, etc. are also possible. Or, part or all of the first pipeline is of a rigid or flexible structure, a buoy is arranged at the inlet position of the first pipeline, the buoy can be of a plate-shaped, spherical or block-shaped structure, the first pipeline is caused to deform along with the change of the water level by means of buoyancy, and the purpose that the pipe orifice of the first pipeline moves up and down along with the lifting of the water level is further achieved. When part or all of the first pipeline is made of rigid pipes, the telescopic structure can be manufactured; when part or all of the first pipeline is flexible pipe, the structure of hose, corrugated pipe and the like can be adopted, and the pipe can be plastic, metal or combination of plastic and metal and the like. For the flexible pipe, the whole first pipeline may be a flexible pipe, or a part of the first pipeline may be a flexible pipe.

With the laundry treatment apparatus described above, in some possible embodiments, the inlet of the first pipe is movably provided to the tub so as to: the inlet of the first conduit may be at different heights in the vertical direction with the movement. In this way, an embodiment is provided in which the inlet position of the first conduit is changed. Through setting up the import with movable mode in the flourishing cask with first pipeline, compare in schemes such as offer a plurality of independent control's import on first pipeline, mobilizable realization mode is simple reliable, with low costs, more easily realizes. For example, the inlet of the first conduit may be movable by means of a rack and pinion transmission, a float or the like.

With the above-mentioned laundry treatment apparatus, in some possible embodiments, the first conduit comprises a movable portion by means of which the inlet of the first conduit can be at different heights in the vertical direction. In this way, a more specific embodiment of varying the inlet position of the first conduit is provided. By setting a part of the first pipeline as a movable part, the inlet position can be changed by the movement of the movable part, and then different liquid level heights can be corresponding.

The movable part may be realized as a flexible tube capable of free deformation, such as a hose, a bellows, etc.; or a telescopic sleeve, one part of the sleeve is fixed, the other part of the sleeve is movable, and the inlet is formed in the movable part; or may be a combination of flexible tubing and cannula, etc.

For the laundry treatment apparatus described above, in some possible embodiments, the movable portion is a flexible tube or a telescopic tube. In this way, a specific implementation of the movable part of the first conduit is provided.

With the above-described laundry treating apparatus, in some possible embodiments, the first sub-drain further includes a float provided at a position of the first pipe corresponding to an inlet thereof. For the above-mentioned laundry treatment apparatus, in some possible embodiments, the first sub-drain further comprises a float provided at a position of the pipe corresponding to an inlet thereof.

Through setting up cursory, impel first pipeline to take place deformation with the help of the buoyancy that cursory received, compare with the scheme with the help of the first pipeline of mechanical power mechanism drive change position, with the help of cursory scheme simpler, reliable, with low costs, and occupation space is little, easy realization.

It should be noted that, the change of the inlet of the first pipeline and the water level in the barrel in the invention is realized on the premise that the water level in the barrel reaches the minimum working water level value.

It is understood that the structure of the buoy may be any, and the buoy may have any plate-like or spherical structure without interfering with water inflow and in the case that the inlet of the first pipeline always corresponds to the surface water body.

With the above-described laundry treating apparatus, in some possible embodiments, the first sub-drain is provided with a restraining member, the first pipe being movable under the restraint of the restraining member. Through setting up the restriction component and retraining the activity of pipeline, can effectively restrict the range of motion of the import of pipeline, and then make the filtration process can go on more controllably, smoothly.

There are a variety of implementations of the restraining member. For example, the restriction member may restrict only the movement of the nozzle of the first pipe, or may restrict the movement of the entire first pipe. Specifically, the restraining member may be a limiting rod fixedly connected to the tub and extending in a vertical direction, and the inlet is provided with a limiting ring that may be sleeved on the outer periphery of the limiting rod, so that the inlet of the first pipeline may only move up and down in the vertical direction, or further accompanies a movable mode of rotating around the limiting rod in a small axial range; or the buoy connected to the inlet is sleeved on the limiting rod, and the constraint on the inlet of the first pipeline is realized by limiting the buoy. The constraining member may be a shell-like structure capable of constraining a portion of the pipe section of the first pipe (including the first pipe inlet), which itself is formed with a receiving chamber or is formed with a receiving chamber in common with the tub, at least a portion of the first pipe being disposed in the receiving chamber, thereby constraining movement of all or a portion of the first pipe disposed therein by means of the receiving chamber. Of course, a combination of a stop lever and a shell-like structure is also possible, as well as other types of restraining members.

With the laundry treating apparatus described above, in some possible embodiments, the restraining member is formed with a receiving chamber or the restraining member and the tub together form a receiving chamber, and at least a portion of the first pipe is freely received in the receiving chamber. In this way, a specific embodiment of the restraining member is provided. Through setting up the chamber of holding in the constraint component, perhaps constructing the chamber of holding with the help of the constraint component, with at least a part free accommodation in this chamber of holding of pipeline, realized the effective restraint of the range of motion of pipeline, and then can improve the stability of the structure of first sub-drainage portion.

With the above-described laundry treatment apparatus, in some possible embodiments, the restraint member or the tub is provided with a communication structure in a vertical direction at a position corresponding to the restraint member so as to: the surface layer portion of the water body can circulate between the inside of the tub and the accommodation chamber by means of the communication structure in the case where the water body is at different liquid levels.

The communication structure is specially provided for the case that the housing-shaped restraining member forms a relatively airtight accommodating chamber after being connected with the tub. The communication structure is arranged to ensure that the water level in the barrel is consistent with the water level in the accommodating cavity, and the components of the surface water body in the barrel and the surface water body in the accommodating cavity are basically consistent. The communication structure may be provided on the restricting member or may be provided on the tub. When the constraint component is connected to the outer side wall of the water containing bucket, the communication structure is arranged on the water containing bucket; when the constraining member is connected to the inner sidewall of the tub, the communicating structure is disposed on the constraining member. The communication structure may be an open structure or an orifice plate structure, such as a water tub or a constraint member provided with a plurality of water permeable holes or a grill structure.

It is understood that the communication structure is not required when the restraining member is connected to the inner side wall of the tub and the receiving chamber is not formed to be relatively airtight with the tub structure, i.e., the surface water in the tub can freely pass between the inside of the tub and the receiving chamber.

For the above-mentioned laundry treatment apparatus, in some possible embodiments, the communication structure is a plurality of vertically arranged water permeable holes. In this way, a specific implementation of the communication structure is provided. The water permeable holes can be round holes, bar holes, taper holes and the like.

With the laundry treating apparatus described above, in some possible embodiments, the drain portion further includes a second sub drain portion including a second pipe, an inlet of which communicates with a position of the tub near a bottom thereof, and an outlet of which communicates with an outside environment of the tub.

It can be understood that when the movable range of the inlet of the first pipeline of the first sub-drainage part in the vertical direction is limited, that is, the first pipeline is arranged to be used for discharging the upper water body only, the second sub-drainage part can be combined to realize complete drainage, and the drainage structure can enable the arrangement of the first pipeline to be easier and the drainage to be more thorough. The second sub-drain may adopt an existing drain structure, and may realize step-by-step drainage together with the first sub-drain.

Drawings

Preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural view of a tub assembly and a drain of a washing machine according to an embodiment of the present invention;

FIG. 2 is a second schematic diagram of a tub assembly and a drain of a washing machine according to an embodiment of the present invention;

FIG. 3 is a schematic view of the outer tub according to the embodiment of the present invention; and

fig. 4 is a schematic structural diagram of a first sub-drainage part according to an embodiment of the present invention;

list of reference numerals:

1. a barrel assembly; 10. an inner barrel; 11. an outer tub; 110. a water permeable hole; 12. a balance ring; 13. a motor; 14. a restraining member; 15. a buffer member; 2. a water draining part; 20. a second sub-drain section; 200. a second drain valve; 21. a first sub-drain; 210. a float; 211. a first pipe section; 2110. an inlet; 212. a second pipe section; 213. a first drain valve.

Detailed Description

It should be noted that the following embodiments are only 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 conjunction with pulsator washing machines, this is not limitative, and the technical solution of the present invention is equally applicable to pulsator washing and drying machines, drum washing and drying machines, etc., and the application object changes do not deviate from the principle and scope of the present invention.

Next, 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 the description of the present invention, terms such as "upper", "lower", "inner", "outer", "top", "bottom", and the like, which indicate a direction or a positional relationship, are based on the direction or the positional relationship in actual use, are merely for convenience of description, and do not indicate or imply that the apparatus to be protected 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 the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Fig. 1 is a schematic structural view of a tub assembly and a drain of a washing machine according to an embodiment of the present invention; FIG. 2 is a second schematic diagram of a tub assembly and a drain of a washing machine according to an embodiment of the present invention; FIG. 3 is a schematic view of the outer tub according to the embodiment of the present invention; fig. 4 is a schematic structural diagram of a first sub-drainage portion according to an embodiment of the present invention.

The structure of the washing machine provided by the embodiment of the present invention will be described with reference to the accompanying drawings.

As shown in fig. 1 to 3, the washing machine in the present embodiment is a pulsator washing machine, which includes a casing (not shown) in which a tub assembly 1 is disposed, the tub assembly 1 including an outer tub 11, an inner tub 10, a balance ring 12, and the like. The outer tub 11 is fixedly connected to the inside of the cabinet, and the inner tub 10 is rotatably provided to the outer tub 11. The bottom of the inner tub 10 is connected with a pulsator, the pulsator is connected with a motor 13, the top of the outer tub 11 is connected with a balancing ring 12, and the balancing ring 12 is filled with brine, particulate matters, etc. for balancing the tub assembly 1 when the inner tub 10 rotates at a high speed. During operation of the washing machine, the outer tub 11 mainly serves as a tub, and the inner tub 10 mainly serves as a laundry treating tub. The sidewall of the inner tub 10 is provided with a plurality of through holes for allowing water in the tub to circulate between the inside and the outside of the inner tub 10. It will be appreciated that a non-porous barrel structure with non-porous sidewalls is also possible.

The washing machine needs to discharge the contaminated water after performing washing, rinsing, etc. procedures, and thus, the washing machine needs to be provided with a drain structure. The outer tub 11 in this embodiment is configured with a drain portion 2, where the drain portion 2 includes a first sub drain portion 21 and a second sub drain portion 20, the first sub drain portion 21 is mainly used for draining an upper water body and foreign matters floating in the upper water body, the second sub drain portion 20 is mainly used for draining a lower water body, and the first sub drain portion 21 and the second sub drain portion 20 cooperate to completely drain sewage, so that a secondary pollution problem occurring in a drain process can be effectively avoided, and a washing degree of clothes is improved.

In this embodiment, the second sub-drain 20 is a drain structure of a conventional washing machine. As shown in fig. 1 and 2, the second sub-drain 20 includes a second pipe, a drain (not shown) is provided at the bottom of the outer tub 11, an inlet of the second pipe communicates with the drain, and an outlet of the second pipe communicates with an external environment of the outer tub 11, such as extends to a sewer line. The second pipeline is provided with a second drain valve 200, and the on-off of the second pipeline is controlled by controlling the second drain valve 200.

The first sub-drain 21 in the embodiment of the present invention includes a first pipe, an inlet 2110 of which communicates with the inner environment of the outer tub 11, and the inlet 2110 of which can be located at different positions in the vertical direction and changes with a change in the water level, and a specific trend of change is to increase with an increase in the water level and decrease with a decrease in the water level.

The first sub-drain 21 provided in the embodiment of the present invention will be described with reference to the drawings.

Referring to fig. 1 to 4, the first pipeline in the present embodiment includes a first pipe section 211 and a second pipe section 212, wherein the first pipe section 211 is provided in a movable structure. In particular, the first tube section 211 is a flexible tube, such as a bellows, that is pliable and easily allows for a change in the position of the inlet 2110. As shown in fig. 4, the first pipe section 211 is provided with a float 210, the float 210 is located at the position of the inlet 2110 of the first pipe section 211, the float 210 enables the inlet 2110 of the first pipe section 211 to be always communicated with the surface water, when the liquid level rises Shi Fupiao, the inlet 2110 of the first pipe section 211 is driven to be upwards, and when the liquid level falls, the float 210 drives the inlet 2110 of the first pipe section 211 to be downwards. In this embodiment, the float 210 is made of lightweight foam plastic and is made into a block structure, the end of the first pipe section 211 is fixedly connected to the float 210, and a through hole is formed in the side surface of the float 210, and the through hole is communicated with the first pipe section 211 to form an inlet 2110 of the first pipe section 211.

In order to limit the range of movement of the first pipe section 211 during a liquid level change, the present embodiment also provides the first pipe section 211 with a restraining member 14. As shown in fig. 1 and 4, the restraining member 14 constitutes a restraint on the entirety of the first tube segment 211 during the movement of the first tube segment 211. In this embodiment, the restraining member 14 is mounted to the outer side wall of the outer tub 11, made in a bar-shaped shell-like structure, fixedly connected to the outer side wall of the outer tub 11 in the vertical direction. The side of the restraining member 14 facing the outer side wall of the outer tub 11 is of an open structure, and in the mounted state, the restraining member 14 and the outer side wall of the outer tub 11 are jointly configured to form a receiving chamber, in which the first pipe section 211 and the float 210 are freely received. In this embodiment, since the outer peripheral shape of the float 210 is substantially identical to the shape of the inner peripheral surface of the constraint member 14, a certain gap is reserved therebetween, so that the float 210 moves up and down only in the vertical direction in the accommodating chamber configured by the constraint member 14.

Due to the restriction of the restriction member 14, the movement of the first pipe section 211 in the horizontal direction is restricted, and in order to give the first pipe section 211 sufficient deformation space, a buffer member 15 is further provided below the restriction member 14 in the present embodiment. As shown in fig. 1 and 4, the buffer member 15 has a shell-like structure having a circumferential dimension larger than that of the restriction member 14, so that during the gradual downward movement of the inlet 2110 of the first pipe section 211 with the liquid surface, the lower portion of the first pipe section 211 gradually bends and contracts into the chamber of the buffer member 15.

It will be appreciated that the cushioning members 15 may not be provided when there is sufficient deformation space for the first tube segment 211 in the case where the circumferential dimension of the restraining member 14 is large.

In this embodiment, the first pipe section 211 and the second pipe section 212 are made of different materials, so that the first pipe section 211 has better flexibility and is easy to bend and deform, and can be made into a corrugated pipe structure. The second tube section 212 may be a conventional plastic drain. The first tube section 211 and the second tube section 212 communicate at the cushioning member 15. The outlet of the second pipe section 212 communicates with the outside environment of the outer tub 11, such as to a sewer line. The second pipe section 212 is provided with a first drain valve 213, and the first drain valve 213 is used for controlling on-off of the first pipeline. It will be appreciated that the first tube section 211 and the second tube section 212 may also be integrally formed.

In order to make the main source of intaking of first pipe section 211 be the superficial water body in the bucket, the outer bucket 11 in this embodiment is provided with a plurality of holes 110 that permeate water corresponding to the position department of installing restraining member 14, a plurality of holes 110 that permeate water evenly arrange along horizontal direction and vertical direction and form array structure, no matter the water level in the bucket is high, the hole 110 that permeates water that all has the corresponding position can communicate the interior environment of outer bucket 11 and the holding chamber of restraining member 14 in the position of superficial water level, and then can guarantee to get into the water source of first pipe section 211 and be superficial water body all the time, can guarantee like this that superficial water body showy foreign matter can be discharged along with the rivers smoothly.

The following describes the operation of the drainage part provided in the embodiment of the present invention.

Taking a washing program executed by the washing machine as an example, sewage is required to be discharged after washing is finished, and the water body can be kept still for 30 seconds before the water is discharged, so that the water body is in a relatively stable state, and foreign matters such as foam, thread scraps, paper scraps and the like which are not filtered by a filter arranged in the inner barrel 10 can gradually float on the surface layer of the water body at the end of the standing. After the standing, the first sub-drain 21 is controlled to operate, the first drain valve 213 provided in the first pipeline is opened, the surface water enters the first pipe section 211 from the inlet 2110 of the first pipe section 211, and is discharged to the sewer pipe through the outlet of the second pipe section 212, and in this process, the foreign matters floating on the surface of the water are discharged together with the discharged water. Along with the continuous discharge of the water body, the water level in the barrel gradually descends, the first pipe section 211 gradually bends downwards to shrink under the action of dead weight and floating force, and the inlet 2110 of the first pipe section 211 is ensured to always correspond to the surface water body. After the set period of time for draining or after the set volume of water is drained, the first drain valve 213 is closed and the second drain valve 200 is opened, so that the second pipeline is connected, the water in the barrel is drained to the sewer pipeline from the second drain outlet at the bottom through the second pipeline, and the complete draining of sewage is finally realized. In the whole drainage process, the foreign matters on the surface layer are firstly discharged from the first sub-drainage part 21 along with the surface layer water body, so that the problem of secondary pollution caused by the interception of the foreign matters by clothes is avoided, and the washing degree of the clothes is effectively improved.

Alternatively, the first sub-drain 21 may drain the surface water body and simultaneously open the second sub-drain 20, so that the washing degree is improved, the draining speed is increased, and the total time of the laundry treatment is shortened.

It will be appreciated that the above embodiments are described by way of example in terms of a washing process, and that the aspects of the invention are equally applicable to rinsing and the like. Further, the values in the above embodiments are merely exemplary, and those skilled in the art may set according to actual needs, or may directly drain water without setting a standing time.

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 laundry treating apparatus, comprising a tub and a drain part, the drain part comprising:

a first sub-drain part including a first pipe, an inlet of which communicates with an inner environment of the tub, an outlet of which communicates with an outer environment of the tub,

wherein the first conduit is arranged with its inlet capable of being in different positions in the vertical direction so that:

2. The laundry treatment apparatus according to claim 1, wherein an inlet of the first pipe is movably provided to the tub so as to:

the inlet of the first conduit may be at different heights in the vertical direction with the movement.

3. Laundry treatment apparatus according to claim 2, characterized in that the first conduit comprises a movable portion by means of which the inlet of the first conduit can be at different heights in the vertical direction.

4. A laundry treatment apparatus according to claim 3, characterized in that the movable part is a flexible tube or a telescopic tube.

5. A laundry treatment apparatus according to claim 3, wherein the first sub-drain further comprises a float provided at a position of the first conduit corresponding to an inlet thereof.

6. The laundry treating apparatus according to claim 5, wherein the first sub-drain is provided with a restricting member, the first pipe being movable under the restriction of the restricting member.

7. The laundry treating apparatus according to claim 6, wherein the constraint member is formed with a receiving chamber or the constraint member and the tub together form a receiving chamber, and at least a portion of the first pipe is freely received in the receiving chamber.

8. The laundry treatment apparatus according to claim 7, wherein a position of the restraining member or the tub corresponding to the restraining member is provided with a communication structure in a vertical direction so as to:

the surface layer portion of the water body can circulate between the inside of the tub and the accommodation chamber by means of the communication structure in the case where the water body is at different liquid levels.

9. The laundry treatment apparatus of claim 8, wherein the communication structure is a plurality of vertically arranged water permeable holes.

10. The laundry treatment apparatus according to any one of claims 1 to 9, wherein the drain further comprises a second sub drain comprising a second pipe, an inlet of the second pipe communicating with a position of the tub near a bottom thereof, an outlet of the second pipe communicating with an outside environment of the tub.