CN110409110B

CN110409110B - Washing machine

Info

Publication number: CN110409110B
Application number: CN201810403103.0A
Authority: CN
Inventors: 王翔; 周鹏; 邓德喜; 汤凯利; 熊明
Original assignee: Wuxi Little Swan Electric Co Ltd
Current assignee: Wuxi Little Swan Electric Co Ltd
Priority date: 2018-04-28
Filing date: 2018-04-28
Publication date: 2022-02-11
Anticipated expiration: 2038-04-28
Also published as: CN110409110A

Abstract

The present invention provides a washing machine, including: a water containing barrel; a washing tub rotatably disposed within the tub and including a washing chamber; the filter assembly is fixedly arranged at the bottom of the washing drum and comprises: the filter screen disc is arranged on the connecting disc; an inner space of the filter assembly is formed between the connecting disc and the filter screen disc; an overflowing channel for communicating the washing cavity with the inner space is arranged between the connecting disc and the washing barrel; the filter assembly also comprises a non-return sheet arranged at the edge of the filter screen disc or the connecting disc; the backstop sheet is used for opening and closing the inner space. The washing machine provided by the invention has the advantages that the quantity of thread scraps in the washing cavity is reduced by opening or closing the internal space of the rotatable check plate, the thread scraps are prevented from being accumulated in the internal space when the washing machine is dehydrated, the check plate is simple in structure, manual operation is not needed, automatic control can be realized by using the impact force of water flow, the self-cleaning effect of the washing machine is improved, and the operation of a user is facilitated.

Description

Washing machine

Technical Field

The invention relates to the field of household appliances, in particular to a washing machine.

Background

At present, the thread scraps collection bag is generally arranged on the impeller washing machine on the existing market to filter and collect the washing thread scraps, and the mode mainly has three problems: the regular cleaning of the wire scrap collecting bag is complicated and is not user-friendly; the problem that the collection rate of the flock is gradually reduced or even the flock can not be collected again and the like exists when the collection bag is not cleaned; the crumb in the collecting bag is moist, is easy to breed bacteria, pollutes clothes and is harmful to human health.

In the related technology, a screen disc with a filter screen is additionally arranged at the bottom of a flange disc of a few pulsator washing machines, a gap of 2-4 mm is formed between the screen disc and the flange disc, when washing is carried out, circulating water flows to the bottom of an inner barrel through the flange disc, and thread scraps are intercepted outside the filter screen; when draining, the portion of the lint is discharged from the tub drain. This solution basically achieves the thread waste filtering and discharging functions, but also has the following problems: during washing, the clearance influences the path of circulating water flow, so that part of the thread scraps return to the dewatering barrel again; during drainage, the thread scraps in the dewatering barrel are blocked by the filter screen after passing through the flange plate holes and cannot be smoothly discharged, and the thread scraps are accumulated to influence the next thread scrap collecting effect and the drainage efficiency.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art.

To this end, the present invention provides a washing machine.

In view of the above, the present invention provides a washing machine, including: a water containing barrel; a washing drum rotatably disposed within the tub and including a washing chamber; the filter assembly is fixedly arranged at the bottom of the washing drum and comprises: the filter screen disc is arranged on the connecting disc; an inner space of the filter assembly is formed between the connecting disc and the filter screen disc; an overflowing channel for communicating the washing cavity with the inner space is arranged between the connecting disc and the washing barrel; the filter assembly also comprises a non-return sheet arranged at the edge of the filter screen disc or the connecting disc; the backstop sheet is used for opening and closing the inner space.

The washing machine provided by the invention comprises: the washing machine comprises a water containing barrel, a washing barrel and a filtering component, wherein the washing barrel is rotatably arranged in the water containing barrel, clothes to be washed are placed in a washing cavity of the washing barrel, the filtering component is arranged at the bottom of the washing barrel and comprises a connecting disc, a filter screen disc and a check sheet which are mutually connected, particularly, the connecting disc is arranged at the bottom of the washing barrel, the filter screen disc and the connecting disc are mutually connected, an inner space is formed between the filter screen disc and the connecting disc and is mutually communicated with the washing cavity through an overflowing channel, the check sheet is arranged on the peripheral side of the connecting disc or the filter screen disc, the inner space is opened or closed by the check sheet, further, the opening or closing of the inner space is realized, particularly, when the washing machine is in a washing state, a large amount of thread scraps exist in washing water, at the moment, a wave wheel component of the washing machine starts to work, so that the washing water in the washing cavity is disturbed, the washing water in the washing cavity flows between the washing cylinder and the water containing barrel and flows below the filter screen disc under the action of gravity, and in the process of continuous flowing of the washing water, the washing cavity generates pressure difference with the outside to further promote the washing water to flow back to the washing cavity again, at the moment, due to the existence of the check sheet, the internal space is in a closed state, the washing water can only return to the washing cavity through the filter screen disc, so that the washing water is filtered, and the thread scraps still exist in the washing cavity, therefore, when the washing machine is in a dehydration state, all the washing water in the washing cavity firstly enters the internal space through the overflowing channel, then is discharged from the opened check sheet to the internal space and finally is discharged out of the washing machine, at the moment, the check sheet is in an opened state under the impact of the washing water, the thread scraps are discharged out of the washing machine along with the washing water, and the thread scraps are prevented from remaining in the internal space, the internal sanitary environment of the washing machine is ensured, and the safe use of a user is ensured. Specifically, the check sheet is a one-way check sheet, and the washing machine is a pulsator washing machine.

According to the washing machine, the internal space of the filtering component is opened or closed through the rotatable check sheet, the quantity of thread scraps in the washing cavity is reduced, the check sheet is simple in structure, manual operation is not needed in the whole washing and dewatering processes, automatic control can be achieved through the impact force of water flow, the internal space is closed when the washing machine is in a washing state, washing water is filtered, the internal space is opened when the washing machine is in a dewatering state, all thread scraps are discharged along with the washing water, the thread scraps are prevented from being accumulated above the filter screen disc, the self-cleaning effect of the washing machine is improved, and operation by a user is facilitated.

According to the washing machine of the present invention, the following additional technical features may be provided:

in the above technical solution, preferably, the ratchet may rotate between a first position and a second position, and when the ratchet is located at the first position, the inner space is closed, and when the ratchet is located at the second position, the inner space is opened.

In the technical scheme, the non-return sheet can rotate between a first position and a second position, and particularly, when the washing machine is in a static state, the non-return sheet is in the first position under the action of self gravity to close the inner space, so that the inner space is isolated from the outside; when the washing machine is in a washing state, washing water continuously circulates, the check sheet is in the first position, the inner space is closed, and all the washing water enters the inner space and the washing cavity through the filter screen disc, so that the washing water is filtered, and the quantity of thread scraps in the washing cavity is reduced; when washing machine was in the dehydration state, the non-return piece took place to rotate under reverse rivers' effect and is in the second position, opened the inner space for the line bits are discharged with the washing water in the lump, avoid the line bits to remain in the inner space, guarantee the internal environment in washing chamber.

In any of the above technical solutions, preferably, the backstop sheet includes: the separation blade with along the protruding pivot of separation blade length direction play separation blade, and the pivot is located the edge of separation blade, the edge of filter screen dish is provided with the supporting seat, the pivot can be connected to on the supporting seat with rotating, the edge of filter screen dish still is provided with spacing portion, spacing portion is located one side that the filter screen dish was provided with the supporting seat, when the separation blade was located the first position, the separation blade contacted with spacing portion.

In the technical scheme, the non-return sheet comprises a blocking sheet and a rotating shaft which are mutually connected, a supporting seat is arranged on the periphery of the filter screen disc, the rotating shaft is inserted into the supporting seat, the non-return sheet is rotatably arranged on the filter screen disc through the rotating shaft, and the blocking sheet is driven to open or close the inner space through the rotation of the rotating shaft; further, in order to guarantee the rotation range of the check piece, the blocking piece is fixed at the first position under the impact of water flow in the process of circulation flowing of washing water, a limiting part is arranged on one side of the filter screen disc, which is provided with the supporting seat, when the blocking piece is arranged at the first position, the contact between the limiting part and the blocking piece is limited, the impact of the water flow is overcome, the blocking piece is stably arranged at the first position, and the closing of the inner space is guaranteed.

In any of the above technical solutions, preferably, the backstop further includes: the reinforcing ribs are arranged on the baffles.

In this technical scheme, be provided with the strengthening rib in the separation blade towards one side of filter screen dish, further promote the intensity of straining the subassembly, specifically, can play spacing effect through this strengthening rib and the mutual block between spacing portion.

In any one of the above technical solutions, preferably, the limiting portion and the filter screen disc are of an integrated structure.

In this technical scheme, set up spacing portion and filter screen dish into the integral type structure, the integral type structure can guarantee that it has sufficient intensity, hardness, increase of service life.

In any of the above technical solutions, preferably, the connecting disc is fixedly connected to the bottom of the washing drum, the non-return sheet is rotatably disposed at the edge of the screen plate, and the connecting disc and the screen plate are fixedly connected.

In this technical scheme, with connection pad fixed connection in the bottom of a washing section of thick bamboo, and be fixed connection between connection pad and the filter screen dish, guarantee joint strength between the two, with the rotatable setting in the edge of filter screen dish of non-return piece, guarantee opening and closing of inner space.

In any one of the above technical solutions, preferably, a hollow area is arranged on the filter screen disc, and a filter screen is arranged at the hollow area.

In this technical scheme, be provided with many places fretwork region on the filter screen dish, be provided with the filter screen in this fretwork region, when washing water process filter screen, can filter the clean degree in the washing intracavity with the line bits in the below of filter screen dish.

In any of the above technical solutions, preferably, the side wall of the washing drum is provided with a plurality of water outlet holes, and when the washing machine is used for treating clothes, water in the washing chamber can be discharged through the plurality of water outlet holes and then returns to the washing chamber through the filter assembly and the flow passage.

In the technical scheme, the washing drum further comprises a water outlet hole penetrating through the side wall of the washing drum, and when the washing machine is in a washing state, washing water in the washing drum enters a space between the washing drum and the water containing drum through the water outlet hole, so that circulation of water flow is guaranteed.

In any one of the above technical solutions, preferably, the edge of the filter screen disc is provided with a plurality of first mounting holes, and the filter screen disc is connected with the connecting disc through the first mounting holes and the fasteners.

In this technical scheme, set up a plurality of first mounting holes in the edge department of filter screen dish, fastener and first mounting hole mutually support and install the filter screen dish in the bottom of connection pad, guarantee its stable installation, specifically, this fastener is bolt or screw.

In the above technical solution, preferably, a second mounting hole is formed in a middle position of the filter screen disc, and the connection disc and the filter screen disc are mounted on a clutch of the washing machine through the second mounting hole.

In the technical scheme, a second mounting hole is formed in the middle of the filter screen disc, and the connecting disc and the filter screen disc are connected with a clutch of the washing machine through the second mounting hole, so that the normal work of the washing machine is ensured; further, set up it in the central point of filter screen dish and put, when filter assembly rotated along with the washing section of thick bamboo at a high speed, guaranteed that its center coincides with the rotation center mutually, avoided the washing section of thick bamboo to rock, and then promoted washing machine's stability.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

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

FIG. 2 is an exploded view of the washing machine of the embodiment shown in FIG. 1;

FIG. 3 is a plan view of the washing machine of the embodiment shown in FIG. 1 in a washing state;

FIG. 4 is a sectional view of the washing machine of the embodiment shown in FIG. 3 taken along D-D;

FIG. 5 is an enlarged partial view of the washing machine of the embodiment shown in FIG. 4 at E;

FIG. 6 is a schematic structural view of a check plate in the washing machine of the embodiment shown in FIG. 1 at a first position;

FIG. 7 is a plan view of the washing machine of the embodiment shown in FIG. 1 in a dehydrating state;

FIG. 8 is a sectional view of the washing machine of the embodiment shown in FIG. 7 taken along F-F;

FIG. 9 is a partial enlarged view of the washing machine of the embodiment shown in FIG. 8 at G;

fig. 10 is a schematic structural view of a check plate in a second position in the washing machine of the embodiment shown in fig. 1;

FIG. 11 is a partial enlarged view of a portion of the washing machine shown in FIG. 10 at A;

FIG. 12 is a bottom view of the washing machine of the embodiment shown in FIG. 1;

FIG. 13 is a sectional view taken along B-B of the washing machine of the embodiment shown in FIG. 12;

FIG. 14 is a partial enlarged view of the washing machine of the embodiment shown in FIG. 13 at C;

FIG. 15 is a schematic structural view of a filter assembly in the washing machine of the embodiment shown in FIG. 1;

FIG. 16 is a schematic view of the construction of a non-return flap in the filter assembly of the embodiment shown in FIG. 15;

fig. 17 is a plan view of a backstop sheet of the embodiment shown in fig. 15;

fig. 18 is a front view of a backstop according to the embodiment shown in fig. 15;

fig. 19 is a left side view of a backstop sheet of the embodiment shown in fig. 15.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 19 is:

12 washing cylinders, 122 water outlet holes, 124 washing cavities, 126 overflowing channels, 14 filtering components, 142 non-return sheets, 144 rotating shafts, 146 blocking sheets, 148 filtering screen discs, 150 filtering screens, 152 supporting seats, 154 limiting parts, 156 first mounting holes, 158 second mounting holes, 160 reinforcing ribs, 162 connecting discs, 164 internal spaces and 18 water tanks.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

A washing machine provided according to some embodiments of the present invention will be described below with reference to fig. 1 to 19.

The present invention provides a washing machine, as shown in fig. 1 to 14, comprising: a tub 18; a washing drum 12 rotatably disposed within the tub 18 and including a washing chamber 124; the filtering assembly 14, fixedly disposed at the bottom of the washing drum 12, includes: a connecting disc 162 arranged at the bottom of the washing barrel 12, and a filter screen disc 148 arranged on the connecting disc 162; an interior space 164 of filter assembly 14 is defined between coupling disc 162 and screen disc 148; an overflowing channel 126 for communicating the washing cavity 124 with the inner space 164 is arranged between the connecting disc 162 and the washing drum 12; the filter assembly 14 further includes a backstop 142 disposed at an edge of the screen disc 148 or the connection disc 162; the ratchets 142 serve to open and close the inner space 164.

The washing machine provided by the invention comprises: a tub 18, a washing drum 12, and a screen tray assembly 14, wherein, as shown in fig. 1, 3, and 7, the washing drum 12 is rotatably disposed inside the tub 18, laundry to be cleaned is placed in a washing chamber 124 of the washing drum 12, the filter assembly 14 is disposed at the bottom of the washing drum 12, as shown in fig. 15, the filter assembly 14 includes a connecting plate 162, a screen tray, and ratchets 142 connected to each other, specifically, as shown in fig. 3 to 10, the connecting plate 162 is disposed at the bottom of the washing drum 12, the screen tray 148 is connected to the connecting plate 162, and an inner space 164 is formed therebetween, the inner space 164 is communicated with the washing chamber 124 through a flow passage 126, the ratchets 142 are disposed at the circumferential side of the connecting plate 162 or the screen tray 148, and the inner space 164 is opened or closed by the ratchets 142, thereby opening or closing the inner space 164, specifically, when the washing machine is in a washing state, as shown in fig. 3 to 6, a large amount of lint may exist in the washing water, and at this time, the pulsator assembly of the washing machine starts to operate, so that the washing water in the washing chamber 124 is disturbed, as shown in fig. 4 and 5, the direction of the arrow in the drawing indicates a water flow direction, the washing water in the washing chamber 124 flows between the washing tub 12 and the tub 18, and flows under the gravity to below the strainer tray 148, and during the continuous flow of the washing water, a pressure difference is generated between the washing chamber 124 and the outside, so that the washing water is caused to flow back to the washing chamber 124 again, and at this time, due to the presence of the check sheet 142, the internal space 164 is in a closed state, the washing water flows back to the washing chamber 124 again through the strainer tray 148, so that the washing water is filtered, it is noted that the lint still exists in the washing chamber 124, therefore, when the washing machine is in a dehydration state, as shown in fig. 7 to 14, all the washing water in the washing chamber 124 is discharged out of the washing machine through the overflow passage 126, as shown in fig. 8 and 9, the arrow direction in the drawing indicates the water flow direction, and at this time, the check sheet 142 is in an open state under the impact of the washing water, so that all the washing water firstly enters the internal space 164 through the overflow passage 126, then is discharged out of the internal space from the opened check sheet 142, and finally is discharged out of the washing machine, so that all the thread scraps in the washing chamber 124 are discharged, thereby preventing the thread scraps from remaining in the internal space 164, ensuring the internal sanitary environment of the washing machine, and ensuring safe use of a user. Specifically, the check sheet 142 is a one-way check sheet, and the washing machine is a pulsator washing machine.

According to the washing machine provided by the invention, the internal space 164 of the filtering component 14 is opened or closed through the rotatable check sheet 142, the quantity of thread scraps in the washing cavity 124 is reduced, the structure of the check sheet 142 is simple, manual operation is not needed in the whole washing and dewatering processes, automatic control can be realized by using the impact force of water flow, when the washing machine is in a washing state, the internal space 164 is closed, washing water is filtered, when the washing machine is in a dewatering state, the internal space 164 is opened, all thread scraps are discharged along with the washing water, the thread scraps are prevented from being accumulated above the filter screen disc 148, the self-cleaning effect of the washing machine is improved, and the operation of a user is convenient.

In one embodiment of the present invention, it is preferable that the ratchets 142 are rotatable between a first position closing the inner space 164 when the ratchets 142 are located at the first position and a second position opening the inner space 164 when the ratchets 142 are located at the second position, as shown in fig. 6 and 10.

In this embodiment, the backstop plates 142 are rotatable between a first position and a second position, specifically, when the washing machine is in a static state, as shown in fig. 5, the backstop plates 142 are in the first position under the action of their own gravity to close the inner space 164, so that the inner space 164 is isolated from the outside; when the washing machine is in a washing state, the non-return sheet 142 is in the first position, the internal space 164 is closed, and all the washing water enters the internal space 164 and the washing cavity 124 through the filter screen disc 148, so that the washing water is filtered, and the quantity of filings in the washing cavity 124 is reduced; when the washing machine is in a dehydration state, the check sheet 142 rotates under the action of the reverse water flow to be in the second position, and the inner space 164 is opened, so that the thread scraps are discharged together with the washing water, the thread scraps are prevented from being left in the inner space 164, and the internal environment of the washing chamber 124 is ensured.

In one embodiment of the present invention, preferably, as shown in fig. 11 and 15 to 19, the check plate 142 includes: the separation blade 146 and the pivot 144 along separation blade 146 length direction protrusion separation blade 146, and pivot 144 is located the edge of separation blade 146, and the edge of filter screen dish 148 is provided with supporting seat 152, and pivot 144 rotationally is connected to on supporting seat 152, and the edge of filter screen dish 148 still is provided with spacing portion 154, and spacing portion 154 is located the one side that filter screen dish 148 was provided with a plurality of supporting seats 152, and when separation blade 146 was located the first position, separation blade 146 contacted with spacing portion 154.

In this embodiment, the backstop 142 includes a blocking piece 146 and a rotating shaft 144 connected to each other, and as shown in fig. 15, a support seat 152 is provided on the periphery side of the screen disc 148, the rotating shaft 144 is inserted into the support seat 152, so that the backstop 142 is rotatably mounted on the screen disc 148, and the rotation of the rotating shaft 144 drives the blocking piece 146 to open or close the inner space 164; further, as shown in fig. 11, in order to ensure the rotation range of the check piece 142, so that the blocking piece 146 is in the first position and is stationary under the impact of the water flow in the process of circulating the washing water, a limiting portion 154 is disposed on one side of the filter screen disc 148 where the supporting seat 152 is disposed, when the blocking piece 146 is in the first position, the contact between the limiting portion 154 and the blocking piece 146 is limited to overcome the impact of the water flow, thereby ensuring that the blocking piece 146 is stably in the first position and ensuring the closing of the inner space 164.

In one embodiment of the present invention, preferably, as shown in fig. 16 to 19, the backstop sheet 142 further includes: the reinforcing rib 160 is arranged on the baffle plate 146.

In this embodiment, a reinforcing rib 160 is provided on the side of the blocking sheet 146 facing the filter screen tray 148, so as to further enhance the strength of the filter screen tray assembly 14, and specifically, the reinforcing rib 160 and the limiting portion 154 can be engaged with each other to perform a limiting function.

In one embodiment of the present invention, the retaining portion 154 is preferably a unitary structure with the screen tray 148.

In this embodiment, the limiting portion 154 and the strainer tray 148 are integrated, and the integrated structure can ensure sufficient strength and hardness and prolong the service life.

In one embodiment of the present invention, preferably, as shown in fig. 2 and 15, the connecting plate 162 is fixedly coupled to the bottom of the washing tub 12, the check plate 142 is rotatably provided at the edge of the screen plate 148, and the connecting plate 162 and the screen plate 148 are fixedly coupled.

In this embodiment, the connection plate 162 is fixedly connected to the bottom of the washing tub 12, the connection plate 162 is fixedly connected to the filter screen plate 148 to ensure the connection strength therebetween, and the check plate 142 is rotatably disposed at the edge of the filter screen plate 148 to ensure the opening and closing of the inner space 164.

In one embodiment of the present invention, preferably, as shown in fig. 15, a hollowed-out area is provided on the filter screen disc 148, and a filter screen 150 is provided at the hollowed-out area.

In this embodiment, the screen disc 148 is provided with a plurality of hollow areas, and the screen 150 is disposed in the hollow areas, so that when the washing water passes through the screen 150, the thread scraps can be filtered under the screen disc 148, thereby ensuring the cleanliness of the washing chamber 124.

In one embodiment of the present invention, preferably, the side wall of the washing drum 12 is provided with a plurality of water outlet holes 122, and when the washing machine is used for treating clothes, water in the washing chamber 124 can be discharged through the plurality of water outlet holes 122 and then return to the washing chamber 124 through the filter screen disc assembly 14 and the overflow channel 126.

In this embodiment, the washing drum 12 further includes a water outlet 122 penetrating through the sidewall of the washing drum 12, so that when the washing machine is in a washing state, the washing water in the washing drum 12 can be discharged out of the washing cavity 124 through the water outlet 122, thereby increasing the circulating water flow and further speeding up the filtration of the washing water.

In one embodiment of the present invention, preferably, as shown in fig. 15, a plurality of first mounting holes 156 are provided at the edge of the screen pan 148, and the screen pan 148 and the connection plate 162 are connected by the first mounting holes 156 and the fastening members.

In some embodiments of the present invention, through holes are disposed on the connecting disc 162 and at the bottom of the washing drum 12, and the through holes of the connecting disc 162 and the bottom of the washing drum 12 are communicated with each other to form the flow passage 126.

In one embodiment of the present invention, a plurality of first mounting holes 156 are provided at the edge of the strainer tray 148, and the fasteners and the first mounting holes 156 cooperate to mount the strainer tray 148 to the bottom of the connecting plate 162, ensuring stable mounting thereof, and specifically, the fasteners are bolts or screws.

In one embodiment of the present invention, preferably, as shown in fig. 15, a second mounting hole 158 is provided at a middle position of the screen disc 148, and the connection disc 162 and the screen disc 148 are mounted to a clutch of the washing machine through the second mounting hole 158.

In this embodiment, a second mounting hole 158 is formed in the middle of the strainer tray 148, and the connection tray 162 and the strainer tray 148 are connected to a clutch of the washing machine through the second mounting hole 158, thereby ensuring the normal operation of the washing machine; further, the filter screen disc assembly 14 is arranged at the center of the filter screen disc 148, when the filter screen disc assembly 14 rotates at a high speed along with the washing drum 12, the center of the filter screen disc assembly is ensured to coincide with the rotation center, the washing drum 12 is prevented from shaking, and the stability of the washing machine is further improved.

In an embodiment, as shown in fig. 2, the washing machine according to the present invention rotatably sets a washing tub 12 inside a water tub 18, a filter assembly 14 is disposed at the bottom of the washing tub 12, the filter assembly 14 includes a connection disc 162, a filter disc 148 and a non-return sheet 142 connected to each other, the connection disc 162 is disposed at the bottom of the washing tub 12, the filter disc 148 is connected to the connection disc 162, and an inner space 164 is formed therebetween, the inner space 164 is communicated with the washing chamber 124 through a flow passage 126, the non-return sheet 142 is disposed at the circumferential side of the filter disc 148, the inner space 164 is opened or closed by the non-return sheet 142, and thus the inner space 164 is opened or closed, specifically, when the washing machine is in a washing state, as shown in fig. 3 to 6, wash water is disturbed by a pulsator assembly and flows to a gap between the washing tub 12 and the water tub 18 through a water outlet 122 disposed at the lateral wall of the washing tub 12, and flows to the lower part of the filter screen disc 148 under the action of gravity, and in the process of the washing water flowing continuously, the washing chamber 124 generates a pressure difference with the outside, and further the washing water flows back to the washing chamber 124 again, at this time, the check sheet 142 is in the first position to close the inner space 164, and further all the washing water returns to the washing chamber 124 through the filter screen disc 148, and the washing water is filtered, it is noted that the thread scraps still exist in the washing chamber 124, and the thread scraps need to be discharged out of the washing chamber 124 together with the washing water when the washing machine is in the dehydration state, therefore, when the washing machine is in the dehydration state, as shown in fig. 7 to 10, all the washing water flows to the inner space 164 through the overflow passage 126, the check sheet 142 rotates under the impact of the washing water, and in the second position to open the inner space 164, and further the thread scraps are discharged together with the washing water, the internal space 164 is prevented from containing the thread scraps, so that all the thread scraps in the washing cavity 124 are discharged, the internal sanitary environment of the washing machine is ensured, and the safe use of a user is ensured; further, as shown in fig. 15 to 19, the backstop sheet 142 includes a blocking sheet 146 and a rotating shaft 144 connected to each other, a support base 152 is disposed on the periphery of the screen disc 148, the rotating shaft 144 is inserted into the support base 152, the blocking sheet 146 is driven to open or close the inner space 164 by the rotation of the rotating shaft 144, a limiting portion 154 is disposed on one side of the screen disc 148 where the support base 152 is disposed, a reinforcing rib 160 is disposed on one side of the blocking sheet 146 facing the screen disc 148, and the reinforcing rib 160 and the limiting portion 154 are engaged with each other to perform a limiting function, so as to ensure the rotation range of the backstop sheet 142, so that the blocking sheet 146 is in a first position under the impact of water flow in the process of circulating the washing water, and to ensure effective cleaning of lint.

In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A washing machine, characterized by comprising:

a tub (18);

a wash tub (12) rotatably disposed within the tub (18) and including a wash chamber (124);

a filter assembly (14) fixedly disposed at a bottom of the washing drum (12), comprising: a connecting disc (162) arranged at the bottom of the washing barrel (12), and a filter screen disc (148) arranged on the connecting disc (162);

an inner space (164) of the filter assembly (14) is formed between the connecting disc (162) and the filter screen disc (148);

a flow-through channel (126) which is communicated with the washing cavity (124) and the inner space (164) is arranged between the connecting disc (162) and the washing drum (12);

the filter assembly (14) further comprises a backstop sheet (142) arranged at the edge of the filter screen disc (148) or the connecting disc (162), wherein the backstop sheet is arranged on the peripheral side of the connecting disc or the filter screen disc;

the backstop sheet (142) is used for opening and closing the inner space (164);

the check plate (142) rotates between a first position and a second position, and when the check plate (142) is located at the first position, the inner space (164) is closed such that the inner space (164) is isolated from the outside, and the entire washing water passes through the filter screen disc (148) to enter the inner space (164).

2. The washing machine as claimed in claim 1,

opening the inner space (164) when the backstop sheet (142) is in the second position.

3. The washing machine according to claim 2, characterized in that the backstop sheet (142) comprises:

separation blade (146) and edge separation blade (146) length direction protrusion pivot (144) of separation blade (146), just pivot (144) are located the edge of separation blade (146), the edge of filter screen dish (148) is provided with supporting seat (152), pivot (144) rotationally are connected to on supporting seat (152), the edge of filter screen dish (148) still is provided with spacing portion (154), spacing portion (154) are located filter screen dish (148) are provided with one side of supporting seat (152), work as separation blade (146) are located during the first position, separation blade (146) with spacing portion (154) contact.

4. The washing machine according to claim 3, wherein the backstop sheet (142) further comprises:

and the reinforcing rib (160) is arranged on the baffle plate (146).

5. A washing machine according to claim 3,

the limiting part (154) and the filter screen disc (148) are of an integrated structure.

6. The washing machine as claimed in claim 1,

the connecting disc (162) is fixedly connected to the bottom of the washing barrel (12), the backstop sheet (142) is rotatably arranged at the edge of the filter screen disc (148), and the connecting disc (162) is fixedly connected with the filter screen disc (148).

7. A washing machine according to any one of claims 1 to 6,

a hollow area is arranged on the filter screen disc (148), and a filter screen (150) is arranged at the hollow area.

8. A washing machine according to any one of claims 1 to 6,

the side wall of the washing drum (12) is provided with a plurality of water outlet holes (122), and when the washing machine is used for processing clothes, water in the washing drum (12) of the washing cavity (124) can be discharged through the plurality of water outlet holes (122) and then returns to the washing cavity (124) through the filtering component (14) and the overflowing channel (126).

9. A washing machine according to any one of claims 1 to 6,

a plurality of first mounting holes (156) are formed in the edge of the filter screen disc (148), and the filter screen disc (148) is connected with the connecting disc (162) through the first mounting holes (156) and fasteners.

10. A washing machine according to any one of claims 1 to 6,

a second mounting hole (158) is formed in the middle of the filter screen disc (148), and the connecting disc (162) and the filter screen disc (148) are mounted on a clutch of the washing machine through the second mounting hole (158).