CN111379137B - A drainage subassembly and washing machine for washing machine - Google Patents

A drainage subassembly and washing machine for washing machine Download PDF

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Publication number
CN111379137B
CN111379137B CN202010201969.0A CN202010201969A CN111379137B CN 111379137 B CN111379137 B CN 111379137B CN 202010201969 A CN202010201969 A CN 202010201969A CN 111379137 B CN111379137 B CN 111379137B
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China
Prior art keywords
layer
filter screen
water
shell
filter
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CN111379137A (en
Inventor
杨林娟
赵佳
杨锦锋
陈一凡
黄承勇
张洁
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/083—Liquid discharge or recirculation arrangements
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
    • C02F1/766—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens by means of halogens other than chlorine or of halogenated compounds containing halogen other than chlorine
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2307/00—Location of water treatment or water treatment device
    • C02F2307/12—Location of water treatment or water treatment device as part of household appliances such as dishwashers, laundry washing machines or vacuum cleaners

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Textile Engineering (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

The drainage assembly for the washing machine and the washing machine provided by the invention save space by arranging the sewage treatment device in the shell of the drainage assembly of the washing machine. Alternatively, the sewage treatment apparatus of the present invention may be fixed to or integrally formed with a cover (screw cap) of the emergency drain port, or may be fixed to an opening of a housing of the drain assembly through the cover, so that the apparatus can be easily detached. The filtering device of the sewage treatment device comprises a first layer of filtering net, a second layer of filtering net and a third layer of filtering net, wherein the three layers of filtering nets can be respectively made of activated carbon pellets and chlorine ion generating materials, and acid and alkali neutralizing balls for filtering, so that impurities such as flock, pigments and the like in water can be effectively filtered, the content of silver ions in the water is effectively reduced, and the acid and alkali properties of the water are adjusted. According to the invention, the first layer of filter screen and the second layer of filter screen are preferably integrated with the valve core and the cover body, and the third layer of filter screen and the valve core structure are installed in a buckling mode, so that a user can conveniently disassemble and assemble the filter device and place decontamination materials to the filter screens.

Description

A drainage subassembly and washing machine for washing machine
Technical Field
The invention relates to the field of washing machines, in particular to a drainage assembly for a washing machine and the washing machine.
Background
With the progress of science and technology, household appliances are developed in the direction of intelligence, energy conservation and greenness, and washing machines have different innovations in the aspects of structures, control methods and the like, and more attention is paid to intellectualization and high efficiency. However, many washing machines at the present stage have a problem: the sewage discharged after washing contains a large amount of harmful substances, such as heavy metals, detergent residues and the like, and the harmful substances are directly discharged to the external environment along with the sewage, so that pollution is caused.
Patent No. CN 201820348078.6's patent discloses a sewage purification filtration system, including first rose box, its middle part is equipped with the coarse strainer, first rose box carries out the coarse filtration with sewage, sewage carries out the fine filtration through the second rose box, filter the impurity of less granule in the sewage, the dosing tank adds the addition flocculating agent to the third rose box, utilize the bridging effect of flocculation material, promote the large granule to gather, sewage gets into harmful substance and the impurity that active carbon can further adsorb aquatic in the fourth rose box, it is follow-up still to wash the filter screen through special washing unit, the purifying effect of sewage has been guaranteed. However, the scheme including other similar schemes is mostly used in a special water filtering device with a complex structure, is large in size and complex in structure, and has low practicability in daily life.
Disclosure of Invention
In view of this, the present invention provides a drain assembly for a washing machine and a washing machine, which can effectively save space by disposing a sewage treatment device in a housing of the drain assembly of the washing machine. Preferably, the sewage treatment device of the invention is fixed or integrated with the cover body (the spiral cover) of the emergency drainage outlet, or is fixed on the first opening part (the emergency drainage outlet) of the shell of the drainage component through the cover body, the whole structure is small and compact, and the filtering material can be conveniently assembled and disassembled and placed by a user. Preferably, the filtering device of the sewage treatment device comprises a first layer of filtering net, a second layer of filtering net and a third layer of filtering net, wherein the three layers of filtering nets can be respectively filtered by activated carbon balls, chlorine ion generating materials and acid and alkali neutralizing balls, so that impurities such as flock, pigments and the like in water can be effectively filtered, the content of silver ions in the water is effectively reduced, and the acid and alkali properties of the water are adjusted. According to the invention, the first layer of filter screen and the second layer of filter screen are preferably integrated with the valve core and the cover body, and the third layer of filter screen and the valve core structure are installed in a buckling mode, so that a user can conveniently disassemble and assemble the filter device and place decontamination materials on the filter screens.
Specifically, the method comprises the following steps: a drain assembly for a washing machine, the drain assembly comprising a housing, a sewage treatment device, and a cover: the water outlet is arranged on the top of the shell, the water outlet is arranged on the bottom of the shell, the water inlet is arranged on the top of the shell, the water outlet is arranged on the bottom of the shell, the water outlet is; the water inlet, the water outlet and the first opening are all communicated with the cavity; the sewage treatment device is arranged in the cavity; the water flowing in from the water inlet passes through the sewage treatment device and is discharged from the water outlet.
Preferably, the sewage treatment device comprises a valve core, wherein the valve core comprises a first end, a second end and a valve rod connecting the first end and the second end;
the first end of the valve core is fixedly connected with the cover body or integrally formed, or the first end of the valve core can be fixed on the first opening part through the cover body;
the second end of the valve core is provided with a filtering device.
Preferably, the filter device comprises a first layer of filter screen fixedly connected with the valve rod, the first layer of filter screen is formed into a first barrel-shaped structure, the first barrel-shaped structure comprises a first filter inlet, a first outer periphery side shell and a first bottom shell, and a plurality of first filter holes are formed in the first outer periphery side shell and/or the first bottom shell.
Preferably, the second end of the valve core is provided with a water retaining ring, and the water retaining ring comprises a blocking part and a water through hole; the barrier part is used for preventing from water inlet to outlet rivers to pass through, and the water hole of crossing allows from water inlet to outlet rivers to pass through, and the first periphery side casing of first layer filter screen is fixed or integrative with the barrier part to make first filtration import and cross the water hole intercommunication.
Preferably, the blocking portion comprises a radial portion and a circumferential portion, the outer circumferential surface of the radial portion is abutted to the housing, and the circumferential portion encloses the water through hole.
Preferably, a connecting part is further arranged between the water retaining ring and the first end.
Preferably, the filter device further comprises a second layer of filter screen, the valve rod penetrates through the first bottom shell of the first layer of filter screen and then is fixed with or integrally formed with the second layer of filter screen, the valve rod penetrates through the first bottom shell of the first layer of filter screen and is fixed with or integrally formed with the first bottom shell, the second layer of filter screen is formed into a plate-shaped structure, and a plurality of second filter holes are formed in the plate-shaped structure.
Preferably, the filter device further includes a third layer of filter mesh formed into a second barrel-shaped structure including a second filter inlet, a second peripheral side case and a second bottom case, the second peripheral side case and/or the second bottom case being provided with a plurality of third filter holes;
the third layer of filter screen is sleeved at the peripheries of the first layer of filter screen and the second layer of filter screen, and the third layer of filter screen is detachably connected with the water retaining ring.
Preferably, the water retaining ring is provided with a buckle, and the third layer of filter screen is detachably connected with the water retaining ring through the buckle.
Preferably, the outer peripheral surface of the second layer of filter screen abuts against the abutment of the inner peripheral surface of the third layer of filter screen, and the third filtering hole in the second outer peripheral side housing is provided between the abutment and the second bottom housing.
Preferably, a first thread is formed on the first opening portion, a second thread matched with the first thread is arranged on the cover body, and the cover body can be fixed on the opening portion in a rotating mode through matching of the first thread and the second thread.
Preferably, the first opening portion is provided with a boss portion, the first end of the valve element is provided with an extension portion matched with the boss portion, the extension portion can abut against the boss portion, a sealing ring is further arranged between the cover body and the extension portion, and when the cover body is fixed on the opening portion, pressure can be provided for the extension portion, so that the extension portion and the sealing ring are fixed between the boss portion and the cover body.
Preferably, the housing comprises a first housing and a second housing; one end of the first shell is communicated with the side part of the second shell, and the other end of the first shell forms the water inlet; one end of the second housing forms the water outlet, and the other end forms the first opening.
Preferably, the first opening is an emergency drain opening of the washing machine.
In addition, the invention also provides a washing machine, which is provided with any one of the drainage assemblies.
Preferably, the sewage treatment device adopts three layers of filter screens which respectively comprise activated carbon pellets, chlorine ion generators (materials), acid-base neutralization pellets and the like.
Preferably, the first layer of filter screen, the second layer of filter screen, the valve core and the cover body are integrated, and the third layer of filter screen and the valve core are installed in a buckling mode.
Has the advantages that:
the invention installs the sewage treatment device in the shell of the emergency water outlet, preferably fixes the sewage treatment device on the rotary cover, and has the advantages of small and compact structure and convenient assembly and disassembly. The invention adopts the multilayer filter screen, creatively installs the sewage treatment device at the spiral cover of the emergency water outlet of the full-automatic drum washing machine, realizes the high-efficiency combination of the washing machine and the sewage treatment device, and reduces the pollution of harmful substances in the washing sewage to the external environment; the multi-layer filtering of the invention can ensure that the purified water can be reused, respond to the sustainable development strategy of China and really realize the green, energy-saving and environment-friendly washing mode.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings. The drawings described below are merely some embodiments of the present disclosure, and other drawings may be derived from those drawings by those of ordinary skill in the art without inventive effort.
Figure 1 is an exploded schematic view of a drainage assembly of the present invention.
FIG. 2 is a schematic cross-sectional view of the drainage assembly of the present invention.
FIG. 3 is a perspective view of the valve core and the cover of the drain assembly of the present invention.
FIG. 4 is a schematic perspective view of a valve cartridge of the drain assembly of the present invention.
Fig. 5 is an enlarged schematic view at a of fig. 4.
FIG. 6 is a perspective view of a third layer of filter screen of the drainage assembly of the present invention.
Wherein: 1-shell, 2-valve core, 3-cover, 4-sealing ring;
11-inlet, 12-outlet, 13-first opening; 21-first layer of filter screen, 22-second layer of filter screen, 23-third layer of filter screen, 24-valve rod, 25-connecting part, 26-radial part, 27-extending part, 28-discharging hole and 31-knob.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar parts in the drawings, and thus, a repetitive description thereof will be omitted.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known methods, devices, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the disclosure.
It will be understood that, although the terms first, second, third, etc. may be used herein to describe various structures, these structures should not be limited by these terms. These terms are used to distinguish one structure from another structure. Thus, a first structure discussed below may be termed a second structure without departing from the teachings of the disclosed concept. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
It is to be understood by those skilled in the art that the drawings are merely schematic representations of exemplary embodiments, and that the blocks or processes shown in the drawings are not necessarily required to practice the present disclosure and are, therefore, not intended to limit the scope of the present disclosure.
The following detailed description of embodiments of the invention is provided in conjunction with the accompanying figures 1-6:
as shown in fig. 1 to 6, the present invention realizes a green energy-saving and environment-friendly washing mode by combining a sewage treatment apparatus with a drain assembly of a washing machine. The sewage treatment device is arranged in the shell 1 of the drainage component, so that the space is saved. Preferably, the sewage treatment apparatus is fixed to or integrally formed with the cover body 3 (screw cap) of the emergency drain opening 12 so as to be easily detachable together with the cover body 3.
The sewage treatment device can adopt a three-time filtering mode, and comprises a first layer of filter screen 23, a second layer of filter screen 23 and a third layer of filter screen 23, wherein the three layers of filter screens are respectively filtered by using activated carbon pellets and chlorine ion generating materials and acid-base neutralizing balls, so that impurities such as flock, pigments and the like in water are filtered, the content of silver ions in the water is effectively reduced, and the acid-base property of the water is neutralized.
According to the invention, the first layer of filter screen 22 and the second layer of filter screen 22 are preferably integrated with the valve core 2 and the cover body 3, and the third layer of filter screen 23 is installed with the blocking part on the valve core 2 in a buckling manner, so that a user can assemble and disassemble the filter device and release decontamination materials to the filter screens conveniently.
As shown in fig. 1 to 6, the present invention provides a drain assembly for a washing machine, the drain assembly including a housing 1, a sewage treatment device, and a cover 3: a cavity for water flow is arranged in the shell 1, the shell 1 is provided with a water inlet 11, a water outlet 12 and a first opening part 13, the first opening part 13 is provided with a first opening, and the cover body 3 can seal the first opening; the water inlet 11, the water outlet 12 and the first opening are all communicated with the cavity; the sewage treatment device is arranged in the cavity; the water flowing in from the water inlet 11 passes through the sewage treatment apparatus and is discharged from the water discharge port 12.
As shown in fig. 2 to 4, the sewage treatment apparatus includes a valve cartridge 2, the valve cartridge 2 including a first end, a second end, and a valve stem 24 connecting the first end and the second end; the first end of the valve core 2 is fixedly connected with the cover body 3 or integrally formed, or the first end of the valve core 2 can be fixed on the opening part through the cover body 3; the second end of the valve core 2 is provided with a filtering device.
As shown in fig. 2, 4 and 6, the filtering device comprises a first layer of filtering net 21 fixedly connected with the valve rod 24, the first layer of filtering net 21 is formed into a first barrel-shaped structure, the first barrel-shaped structure comprises a first filtering inlet, a first outer periphery side shell 1 and a first bottom shell 1, and a plurality of first filtering holes are arranged on the first outer periphery side shell 1 and/or the first bottom shell 1.
The second end of the valve core 2 is provided with a water retaining ring, and the water retaining ring comprises a blocking part and a water through hole; the blocking part is used for preventing water flow from the water inlet 11 to the water outlet 12, the water passing hole allows water flow from the water inlet 11 to the water outlet 12, and the first outer peripheral side housing 1 is fixed or integrally formed with the blocking part, so that the first filtering inlet is communicated with the water passing hole. Optionally, the blocking portion includes a radial portion 26 and a circumferential portion 27, an outer circumferential surface of the radial portion 26 abuts against the housing 1, and the circumferential portion 27 surrounds the water through hole. Preferably, a connecting part 25 is further arranged between the water retaining ring and the first end.
The filter device further comprises a second layer of filter screen 22, the valve rod 24 penetrates through the first bottom shell 1 of the first layer of filter screen 21 and then is fixed with or integrally formed with the second layer of filter screen 22, the valve rod 24 penetrates through the first bottom shell 1 of the first layer of filter screen 21 and is fixed with or integrally formed with the first bottom shell 1, the second layer of filter screen 22 is formed into a plate-shaped structure, and a plurality of second filter holes are formed in the plate-shaped structure.
The filter device further includes a third layer of filter mesh 23, the third layer of filter mesh 23 is formed into a second barrel-shaped structure, the second barrel-shaped structure includes a second filter inlet, a second peripheral side casing 1 and a second bottom casing 1, and a plurality of third filter holes are provided on the second peripheral side casing 1 and/or the second bottom casing 1. The third layer filter screen 23 is sleeved on the peripheries of the first layer filter screen 21 and the second layer filter screen 22, and the third layer filter screen 23 is detachably connected with the water retaining ring.
As shown in fig. 4 and 5, a buckle is arranged on the water retaining ring, and the third layer of filter screen 23 is detachably connected with the water retaining ring through the buckle.
The outer peripheral surface of the second layer of filter screen 22 abuts against the inner peripheral surface of the third layer of filter screen 23, and the third filtering holes in the second outer peripheral side casing 1 are arranged between the abutting part of the outer peripheral surface of the second layer of filter screen 22 and the inner peripheral surface of the third layer of filter screen 23 and the second bottom casing 1.
As shown in fig. 2, a first screw is formed in the first opening 13, a second screw engaged with the first screw is provided in the lid 3, and the housing 1 can be rotatably fixed to the first opening 13 by engagement of the first screw and the second screw.
The first opening 13 is provided with a boss part, the first end of the valve core 2 is provided with an extension part matched with the boss part, the extension part can be abutted against the boss part, a sealing ring 4 is further arranged between the cover body 3 and the extension part, and when the cover body 3 is fixed on the first opening 13, pressure can be provided for the extension part, so that the extension part and the sealing ring 4 are fixed between the boss part and the cover body 3.
As shown in fig. 1 and 2, the housing 1 of the present invention includes a first housing and a second housing; one end of the first shell is communicated with the side part of the second shell, and the other end of the first shell forms the water inlet 11; one end of the second housing forms the drain opening 12 and the other end forms the first opening.
The first opening of the present invention may be a washing machine emergency drain 12.
In addition, the invention provides a washing machine, which is provided with the drainage assembly.
The sewage treatment device adopts a three-layer filtering mode. The three-layer filtration respectively comprises activated carbon balls, a chloride ion generating material, acid-base neutralizing balls and the like. The first layer of filter screen, the second layer of filter screen 22 and the cover body 3 (screw cover) of the emergency drainage port are integrated, and the third layer of filter screen 23 and the valve core 2 are installed in a buckling mode.
The sewage treatment device adopts a three-layer filtering mode, the three-layer filter screen respectively adopts the activated carbon balls, the chloride ion generating material and the acid-base neutralizing balls, the activated carbon can filter impurities such as flock, pigments and the like in the washing sewage, and the chloride ions and silver ions can generate precipitates, so that the content of the silver ions in the water is effectively reduced.
In addition to the above, the first layer of filter screen 22, the second layer of filter screen 22 and the valve core 2 are innovatively integrated, and the third layer and the valve core 2 are installed in a buckling mode, so that a user can assemble and disassemble the filter device and release decontamination materials to the filter screens conveniently.
As shown in figure 2, when the invention is used, sewage enters from the water inlet 11, water can only enter from the water outlet after being blocked by the water retaining ring, and enters the second layer of filter screen 22 for silver ion absorption after being adsorbed by the activated carbon pellets in the first layer of filter screen 21, and then the pH value is adjusted by the acid-base neutralization balls in the third layer of filter screen 23, and finally the sewage is discharged from the water outlet 12.
When the filter screen needs to be detached, the whole filter screen can be detached only by screwing the knob 31 of the cover body 3 (the screw cap) of the emergency drainage port 12, wherein the first layer of filter screen 21 and the second layer of filter screen 22 can be integrated with the cover body 3 and the valve core 2, the filter screen and the cover body 3 can be detached together, and the first layer of active carbon can be directly put in from the water passing port. The second layer of chloride ion generating material is put into from the blowing (little) hole 28 of side, and the third layer filter screen 23 realizes location and installation through two buckle modes with the manger plate ring, and the manger plate ring can be integrative with case 2, only needs to throw off the buckle, can take off third layer filter screen 23, and the acid-base neutralization ball is thrown into to inside.
According to the invention, the filtering device is arranged on the spiral cover of the emergency water outlet, so that the convenience of user operation is greatly improved.
Has the advantages that:
the invention relates to a drainage assembly for a washing machine and the washing machine, which saves space by arranging a sewage treatment device in a shell 1 of the drainage assembly of the washing machine. The sewage treatment device of the invention is fixed or integrated with the cover body 3 (a spiral cover) of the emergency drainage outlet, or is fixed on the opening part of the shell 1 of the drainage assembly through the cover body 3, and can be conveniently detached. The filtering device of the sewage treatment device is a multi-layer (three-layer) filtering net, and the three-layer filtering net adopts different filtering modes, so that sewage can be effectively treated. The filter screen can be integrated with the valve core 2 and the cover body 3, and the third layer and the valve core 2 structure are installed in a buckling mode, so that a user can assemble and disassemble the filter device and place decontamination materials to the filter screen conveniently.
Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that the present disclosure is not limited to the precise arrangements, instrumentalities, or instrumentalities described herein; on the contrary, the disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims (12)

1. A drain assembly for a washing machine, the drain assembly comprising a housing (1), a sewage treatment device and a cover (3); the method is characterized in that: a cavity for water flow is formed in the shell (1), the shell (1) is provided with a water inlet (11), a water outlet (12) and a first opening part (13), a first opening is formed in the first opening part (13), and the cover body (3) can seal the first opening; the water inlet (11), the water outlet (12) and the first opening are communicated with the cavity; the sewage treatment device is arranged in the cavity; the water flowing in from the water inlet (11) is discharged from the water outlet (12) after passing through the sewage treatment device;
the sewage treatment device comprises a valve core (2), wherein the valve core (2) comprises a first end, a second end and a valve rod (24) connecting the first end and the second end; wherein:
the first end of the valve core (2) is fixedly connected with the cover body (3) or integrally formed, or the first end of the valve core (2) is fixed on the first opening part (13) through the cover body (3);
a second end of the valve core (2) is provided with a filtering device; the filter device comprises a first layer of filter screen (21) fixedly connected with the valve rod (24), the first layer of filter screen (21) is formed into a first barrel-shaped structure, the first barrel-shaped structure comprises a first filter inlet, a first outer periphery side shell (1) and a first bottom shell (1), and a plurality of first filter holes are formed in the first outer periphery side shell (1) and/or the first bottom shell (1); the filtering device further comprises a second layer of filter screen (22), the valve rod (24) penetrates through the first bottom shell (1) and then is fixedly connected with the second layer of filter screen (22) or integrally formed, the second layer of filter screen (22) is of a plate-shaped structure, and a plurality of second filter holes are formed in the plate-shaped structure;
the filter device also comprises a third layer of filter screen (23), the third layer of filter screen (23) is formed into a second barrel-shaped structure, the second barrel-shaped structure comprises a second filter inlet, a second peripheral side shell (1) and a second bottom shell (1), and a plurality of third filter holes are arranged on the second peripheral side shell (1) and/or the second bottom shell (1); the third layer of filter screen (23) is sleeved on the peripheries of the first layer of filter screen (21) and the second layer of filter screen (22).
2. The drain assembly of claim 1, wherein: the second end of the valve core (2) is provided with a water retaining ring, the water retaining ring comprises a blocking part and a water passing hole, the blocking part is used for preventing water flow from the water inlet (11) to the water outlet (12) from passing through, the water passing hole allows water flow from the water inlet (11) to the water outlet (12) to pass through, and the first outer periphery side shell (1) of the first layer of filter screen (21) is fixed with or integrally formed with the blocking part, so that the first filter inlet is communicated with the water passing hole.
3. The drain assembly of claim 2, wherein: the blocking part comprises a radial part (26) and an extension part (27), the outer peripheral surface of the radial part (26) is abutted to the shell (1), and the extension part (27) surrounds the water through hole.
4. A drain assembly according to claim 3, wherein: and a connecting part (25) is also arranged between the water retaining ring and the first end of the valve core (2).
5. A drainage assembly as claimed in any one of claims 2 to 4, wherein: the third layer of filter screen (23) is detachably connected with the water retaining ring.
6. The drain assembly of claim 5, wherein: the water retaining ring is provided with a buckle, and the third layer of filter screen (23) is detachably connected with the water retaining ring through the buckle.
7. The drain assembly of claim 6, wherein: the outer peripheral surface of the second layer of filter screen (22) is abutted against the abutting part of the inner peripheral surface of the third layer of filter screen (23), and a third filter hole in the second outer peripheral side shell (1) is arranged between the abutting part and the second bottom shell (1).
8. The drain assembly of claim 1, wherein: a first thread is formed on the first opening portion (13), a second thread matched with the first thread is arranged on the cover body (3), and the cover body (3) can be fixed on the first opening portion (13) in a rotating mode through the matching of the first thread and the second thread.
9. The drain assembly of claim 1, wherein: a boss part is arranged on the first opening part (13), an annular part matched with the boss part is arranged at the first end of the valve core (2), the annular part can be abutted against the boss part, a sealing ring (4) is further arranged between the cover body (3) and the annular part, and when the cover body (3) is fixed on the first opening part (13), pressure can be provided for the annular part, so that the annular part and the sealing ring (4) are fixed between the boss part and the cover body (3).
10. The drain assembly of claim 1, wherein: the shell (1) comprises a first shell and a second shell; one end of the first shell is communicated with the side part of the second shell, and the other end of the first shell forms the water inlet (11); one end of the second housing forms the drain opening (12), and the other end forms the first opening.
11. The drain assembly of claim 1, wherein: the first opening is a washing machine emergency drain opening (12).
12. A washing machine characterized by: the washing machine having the drain assembly of any one of claims 1-11.
CN202010201969.0A 2020-03-20 2020-03-20 A drainage subassembly and washing machine for washing machine Active CN111379137B (en)

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Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001334272A (en) * 2000-05-29 2001-12-04 Sharp Corp Sewage cleaning apparatus and washine machine equipped therewith
CN200982417Y (en) * 2006-11-14 2007-11-28 南京乐金熊猫电器有限公司 Drum washing machine draining valve with filtering net
EP2316999B1 (en) * 2009-10-29 2015-12-23 Electrolux Home Products Corporation N.V. Filter unit for household appliance
CN102070256B (en) * 2009-11-20 2013-05-15 陈恺瑞 Water purifier for eliminating pollution of heavy metal
CN203625680U (en) * 2013-10-29 2014-06-04 海尔集团公司 Filter purification device
CN208617532U (en) * 2018-03-14 2019-03-19 山东滨化安通设备制造有限公司 A kind of sewage purification filtration system
CN209568276U (en) * 2018-11-01 2019-11-01 青岛海尔洗涤电器有限公司 Clothes treatment device, draining pump, drain valve and filter device

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