CN113737472A

CN113737472A - Washing machine

Info

Publication number: CN113737472A
Application number: CN202010476189.7A
Authority: CN
Inventors: 赵志强; 许升
Original assignee: Qingdao Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-12-03
Anticipated expiration: 2040-05-29
Also published as: CN113737472B

Abstract

The invention discloses a washing machine, which comprises an inner barrel forming a rotatable water container, wherein a water outlet is arranged on the inner barrel, and a thread scrap filtering device is arranged at the water outlet. The thread scraps filtering device covering the water outlet is arranged in the nonporous inner barrel to filter thread scraps in water flow discharged by the washing machine, so that the problem that the water outlet is blocked because the thread scraps in washing water flow to the water outlet is prevented, and the water discharging smoothness of the nonporous inner barrel of the washing-free washing machine is improved.

Description

Washing machine

Technical Field

The invention belongs to the field of washing machines, particularly relates to a washing-free washing machine with washing water not flowing between an inner barrel and an outer barrel in a cross mode, and particularly relates to a washing machine capable of filtering and collecting line scraps in a non-porous inner barrel.

Background

The washing machine in the prior art generally comprises an inner tub and an outer tub, wherein the inner tub is arranged in the outer tub, the outer tub is used for containing washing water, and clothes are placed in the inner tub; the inner tub is internally provided with a washing structure such as a pulsator, and the inner tub and/or the pulsator are/is rotated by the driving of a motor to generate washing water current to wash the laundry. In the washing process, the inner barrel is connected with the outer barrel through the dewatering holes arranged on the inner barrel, so that the inner barrel and the outer barrel are filled with water, and therefore, the conventional washing machine in the prior art has the following three problems:

firstly, water is wasted, and only water in the inner barrel is needed in actual work;

secondly, bacteria are bred, water at the joint of the inner barrel and the outer barrel cannot be completely discharged and cannot be cleaned, and the bacteria breeding of the outer barrel and the pollution to clothes can be caused after the outer barrel is used for a long time;

thirdly, the capacity of the washing machine is greatly reduced due to the existence of the outer barrel, and for the conventional washing machine, the whole structure of the washing machine can only be enlarged due to the expansion, so that the living space of a user is excessively occupied, and the washing machine is extremely unfriendly for small-sized users.

In order to overcome the above problems, the applicant has proposed a washing machine with an inner tub having no holes, in which the inner tub is provided as a closed container having no dewatering holes, so that washing water is contained in the inner tub, and the inner tub has dual functions of water containing and spin washing at the same time, thereby preventing the problem that the washing water flows between the inner and outer tubs and causes uncleanness and pollution to the cavity between the inner and outer tubs.

However, since the inner tub without holes is a sealed inner tub, lint and the like falling off from the laundry during washing can remain in the washing water, and the lint accumulates near the drain opening of the inner tub without holes when the washing machine drains water, causing the drain opening to be blocked, thereby affecting normal drainage of the washing machine.

The present invention has been made in view of this situation.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a washing machine to solve the problems of accumulation of thread scraps at a drainage port of a non-porous inner barrel, drainage blockage and the like in the washing process of a washing-free washing machine so as to achieve the aim of smooth drainage of the washing machine.

In order to solve the technical problems, the invention adopts the technical scheme that:

a washing machine comprises an inner barrel forming a rotatable water container, wherein a water outlet is arranged on the inner barrel, and a thread scrap filtering device is arranged at the water outlet.

Further, the thread scrap filtering device is one or a combination of a grid structure, a mesh structure and a comb tooth structure which cover the water outlet.

Furthermore, the thread scrap filtering device and the inner barrel are integrated; or the thread scrap filtering device is an independent part fixedly arranged on the inner barrel; preferably, the inner barrel is provided with a balance ring, and the thread scrap filtering device is fixedly connected with the balance ring or integrally formed.

Furthermore, the thread scrap filtering device is of a ring-shaped structure which is arranged on the inner periphery of the side wall of the inner barrel and covers the water outlet, the thread scrap filtering device and the inner wall of the inner barrel jointly enclose a water passing space, the water passing space is communicated with the outside of the inner barrel through the water outlet, and the water passing space is communicated with the inside of the inner barrel through a filtering gap on the thread scrap filtering device;

preferably, the upper side and the lower side of the annular lint filter device are directly or indirectly connected with the inner wall of the inner barrel respectively.

Furthermore, the inner barrel is of a barrel-shaped structure with the axis vertically arranged and an opening at the upper end, and the side wall of the inner barrel is in a cone shape with a large radial size at the upper end and a small radial size at the lower end; the top of the side wall of the inner barrel is provided with at least one water outlet, and the annular thread scrap filtering device is arranged on the inner periphery of the top of the inner barrel.

Furthermore, the thread scraps filtering device comprises a plurality of filtering comb teeth which are distributed along the circumferential direction of the inner barrel at intervals, a filtering gap for water to pass is formed by gaps between adjacent filtering comb teeth, and the width D of the filtering gap is smaller than the aperture D of the water outlet; preferably, the filtering comb teeth are of a sheet structure, an included angle a is formed between the sheet filtering comb teeth and the radial section of the inner barrel, and a is larger than or equal to 0 and smaller than 90.

Furthermore, the annular thread scraps filtering device is in a cone shape which is gradually narrowed from bottom to top.

Further, the annular thread scraps filtering device is divided into an upper collecting part and a lower filtering part; the collecting part and the filtering part are in different tapers, and the taper a2 of the collecting part is larger than the taper a1 of the filtering part; or the collecting part is cylindrical and the filtering part is conical; preferably, the filtering part is provided with a collecting tank which is sunken towards the inside of the water passing space and is arranged towards the opening of the inside of the inner barrel.

Furthermore, the filtering comb teeth are connected through at least one circle of fixed ring; preferably, each filtering comb tooth is integrally arranged with the fixing ring.

Furthermore, the lower end of each filtering comb tooth is connected with the inner wall of the inner barrel, and the upper end is connected with the inner wall of the inner barrel through a water baffle.

Furthermore, the water baffle is horizontally arranged and is annular and extends along the radial direction of the inner barrel, the inner periphery of the annular water baffle is connected with the top end of each filtering comb tooth, and the outer periphery of the annular water baffle is connected with the inner periphery of the inner barrel.

After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.

The thread scraps filtering device covering the water outlet is arranged in the non-porous inner barrel, so that thread scraps in the water flow discharged by the washing machine are filtered, the problem that the water outlet is blocked because the thread scraps in the washing water flow to the water outlet is prevented, and the water discharging smoothness of the washing machine is improved; more particularly, the thread scrap filtering device is arranged to be conical, so that thread scraps filtered by the thread scrap filtering device can move upwards under the impact action of drainage water flow, the problems that the thread scraps are accumulated at the lower part of the thread scrap filtering device and the drainage is influenced are solved, and the effect of improving the filtering efficiency of the thread scrap filtering device is achieved.

Meanwhile, the invention has simple structure and obvious effect and is suitable for popularization and use.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

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

FIG. 2 is an enlarged schematic view of FIG. 1 at A according to an embodiment of the present invention;

FIG. 3 is a schematic side view of a lint filter assembly according to an embodiment of the present invention;

FIG. 4 is a schematic view of the lint filter apparatus according to an embodiment of the present invention;

FIG. 5 is an enlarged schematic view of FIG. 1 at A according to another embodiment of the present invention;

FIG. 6 is a schematic side view of a lint filter assembly according to another embodiment of the present invention;

fig. 7 is a schematic structural view of a lint filter device according to another embodiment of the present invention.

Description of the main elements in the figures: 1. an inner barrel; 2. a housing; 3. an inner barrel support; 4. a door cover; 5. a drive motor; 6. a lint filter device; 7. a water outlet; 10. an impeller; 11. a balance ring; 12. an outer barrel cover; 31. an outer tub; 60. filtering the comb teeth; 61. a water baffle; 62. a water passing space; 64. a filtering part; 65. a collecting section; 66. collecting tank; 101. the barrel mouth of the inner barrel; 102. the side wall of the inner barrel; 103. the bottom of the inner barrel.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 7, the present embodiment discloses a washing machine, which includes: the inner barrel comprises a shell 2, wherein an inner barrel 1 is arranged in the shell 2, and the axis of the inner barrel 1 is vertically arranged; an opening at the top end of the inner barrel 1 is arranged to form an inner barrel opening 101, the bottom end is sealed to form an inner barrel bottom 103, and the inner barrel opening and the inner barrel bottom are connected through an inner barrel side wall 102; at least the middle and lower cylinder walls of the inner cylinder 1 are not provided with through holes, so that the inner part of the inner cylinder 1 forms a water container with an open top. Meanwhile, the upper end of the washing machine shell 2 is provided with a door cover 4 which can be opened outwards, so that the clothes can be thrown into the inner barrel 1 from the inner barrel opening 101 after the door cover 4 is opened. The lower part of the inner barrel 1 is arranged in a shell 2 of the washing machine through an inner barrel supporting piece 3, the inner barrel supporting piece 3 and the inner barrel 1 are coaxially arranged, and the inner barrel supporting piece 3 is connected with the shell 2 of the washing machine through a damping hanging rod or a damping supporting leg so as to realize the purpose that the inner barrel supporting piece 3 can be arranged in the shell 2 of the washing machine in a vibrating way; meanwhile, the center of the inner tub bottom 103 is coaxially disposed with a motor shaft of the driving motor 5 of the washing machine to drive the inner tub 1 to rotate, and both the inner tub 1 and the driving motor 5 are fixedly mounted on the inner tub supporting member 3. Preferably, the inner tub bottom 103 and the driving motor 5 are respectively disposed at the upper and lower sides of the inner tub supporting member 3, the driving motor 5 is fixedly connected to the inner tub supporting member 3, a motor shaft of the driving motor 5 passes through the inner tub supporting member 3 through a bearing and is coaxially and fixedly connected to the inner tub bottom 103, and the motor shaft of the driving motor 5 can rotate relative to the inner tub supporting member 3, so that the purposes that the inner tub 1 and the driving motor 5 are mounted on the inner tub supporting member 3 and the inner tub 1 can rotate independently under the action of the driving motor 5 to wash the inner clothes are achieved.

In addition, the inner barrel 1 is provided with a stirring structure capable of rotating relatively, and the stirring structure can be any one of the existing devices, such as: a pulsator 10, a stirring column, etc. Accordingly, the inner tub 1 and/or the agitation structure is driven to rotate by the driving motor, so that various water flows are formed in the inner tub, and the laundry in the inner tub is treated by the water flows. Meanwhile, in order to ensure the stability of the inner barrel during rotation, the balance ring 11 is arranged on the inner barrel 1, and the balance ring 11 is preferably arranged at the barrel opening 101 of the inner barrel.

Meanwhile, the inner barrel forms the water container when the washing machine is used for washing, so that clothes only contact with washing water in the water container in the washing process, the situations that the washing water between the inner barrel and the outer barrel flows in the inner barrel to pollute the clothes are avoided, the washing cleanliness of the washing machine is greatly improved, and the situation that the clothes are not thoroughly cleaned by the washing machine due to the pollution of the washing water between the inner barrel and the outer barrel is avoided.

In the embodiment of the invention, in order to discharge water flow after clothes in the inner barrel 1 of the washing machine are separated and realize normal washing of the inner barrel 1 sealed with water in the working process of the washing machine, the following settings are carried out:

the washing machine in the embodiment of the invention can be any washing machine in the prior art, wherein the inner barrel 1 forms a rotatable water container, the inner barrel 1 is in a cone shape, the barrel diameter of which is gradually increased from bottom to top, at least one water outlet 7 is arranged in the section of the maximum barrel diameter at the top of the inner barrel 1, so that washing water cannot be swung to the water outlet 7 to flow out in the normal washing and rinsing processes of the inner barrel 1, the inner barrel 1 directly forms a water containing barrel for containing washing and rinsing water, and the washing and rinsing water contained in the inner barrel is used for washing or rinsing clothes; in the process of dewatering and draining the inner barrel 1, when the rotating speed of the inner barrel 1 is higher than a set value, the washing water is driven by centrifugal force to flow upwards and flow to the water draining port 7 arranged at the top of the inner barrel 1, and is smoothly discharged out of the inner barrel 1, so that the aim of normally performing a dewatering process on the non-porous inner barrel washing machine is fulfilled. The washing machine in the embodiment of the present invention is not limited to the structure shown in the drawings, for example: as shown in figure 1, the existing common washing machine can be adopted, and only the inner tub 1 of the washing machine needs to be arranged into the washing machine which has no dewatering holes at least at the middle lower part and forms a water container when the washing machine washes.

Meanwhile, in order to ensure the sealing performance in the inner barrel 1, an inner barrel cover capable of opening and closing the barrel opening of the inner barrel can be arranged on the inner barrel 1 so as to correspondingly open and close the barrel opening 101 of the inner barrel; in addition, in order to prevent the washing water from being discharged from the water outlet 7 by mistake, a centrifugal valve for opening and closing the water outlet 7 correspondingly can be arranged on the inner barrel 1, and the water outlet 7 is closed by the centrifugal valve in normal time; when the washing machine carries out dehydration, after the rotating speed of the inner barrel is controlled to reach a set value, the centrifugal force drives the valve core of the centrifugal valve to open the water outlet 7, and the effect of smooth water drainage is realized (not shown in the attached drawing).

As shown in fig. 2 to 7, in the embodiment of the present invention, since the inner tub 1 of the washing machine is a water container, the lint detached from the laundry remains in the washing water during the washing process of the washing machine, which causes the problem that the lint flows to the drain along with the drain when the washing machine drains water, and the lint accumulates at the drain to cause blockage; in order to solve the problems, the thread scrap filtering device 6 is arranged on the inner barrel 1 of the rotatable water container of the washing machine, thread scrap wrapped in drainage water flow of the inner barrel 1 flowing to the water outlet 7 is filtered and intercepted by the thread scrap filtering device 6, so that the thread scrap wrapped in the drainage water flow of the inner barrel of the washing machine is filtered and intercepted, and the problem that the drainage outlet of the non-porous inner barrel is blocked by the wrapped thread scrap in the washing water is effectively avoided.

In the embodiment of the invention, the thread scraps filtering device 6 can be any existing structure capable of filtering and collecting thread scraps in washing water; for example: the thread scraps filtering device 6 is one or a combination of a grid structure, a mesh structure and a comb tooth structure covering the water outlet 7, hollow-out filtering gaps of the thread scraps filtering device are formed by hollow-out partition holes of the grid structure, hollow-out holes of the mesh structure, hollow-out parts of the comb tooth structure and the like, drainage water flows through the hollow-out filtering gaps, and thread scraps in the drainage water flow are filtered and intercepted on the thread scraps filtering device.

In the embodiment of the invention, the thread scrap filtering device 6 and the inner barrel 1 can be an integral piece; alternatively, the lint filter 6 may be a separate member fixedly mounted on the inner tub 1; preferably, a ring of annular balance ring 11 is installed at the top inner barrel opening 101 of the inner barrel 1, and the lint filtering device 6 is fixedly connected with the balance ring 11 or integrally formed, so as to achieve the effect that the lint filtering device 6 and the inner barrel 1 are fixedly installed and rotate together.

As shown in fig. 1 to 7, in the embodiment of the present invention, the lint filtering device 6 is a ring-shaped structure disposed on the inner periphery of the inner barrel sidewall 102 and covering the water outlet 7, the upper and lower sides of the ring-shaped lint filtering device 6 are respectively connected to the inner wall of the inner barrel 1, the lint filtering device 6 and the inner wall of the inner barrel 1 together define a water passing space 62, the water passing space 62 is communicated with the outside of the inner barrel 1 through the water outlet 7, and the water passing space 62 is communicated with the inside of the inner barrel 1 through the filtering gap of the lint filtering device 6.

Of course, in the embodiment of the present invention, the upper side and/or the lower side of the annular lint filter 6 may also be indirectly connected to the inner wall of the inner barrel 1 through other components to form the water passing space 62; for example: a balance ring 11 is arranged at the opening 101 of the inner barrel, the lower side of the annular lint filter device 6 is connected with the inner wall of the inner barrel 1, and the upper side of the annular lint filter device 6 is connected with the lower side of the balance ring 11, so that the annular lint filter device 6, the balance ring 11 and the inner wall of the inner barrel 1 are enclosed together (not shown in the drawing).

The upper side and the lower side of the annular filtering device are respectively connected with the inner wall of the inner barrel to form an annular water passing space, so that all the discharged water flow of the inner barrel flows into the water passing space after being filtered by the thread scrap filtering device and is discharged outside through the water outlet on the inner barrel, thereby ensuring that all the discharged water flow of the washing machine is subjected to thread scrap filtering treatment and preventing the water outlet of the non-porous inner barrel from being blocked by thread scraps.

In the embodiment of the invention, the inner barrel 1 is of a barrel-shaped structure with a vertically arranged axis and an opening at the upper end, and the side wall 102 of the inner barrel is in a cone shape with a large radial size at the upper end and a small radial size at the lower end; at least one water outlet 7 is arranged at the top of the side wall 102 of the inner barrel, the annular thread scrap filtering device 6 is arranged at the inner peripheral side of the top of the inner barrel 1, and each water outlet 7 is respectively communicated with the annular thread scrap filtering device 6 and a water passing space 62 enclosed by the inner wall of the inner barrel 1, so that the water passing space 62 and the water outlet 7 are used for discharging the water flow which rises to the top under the action of the centrifugal force generated by the rotation of the inner barrel.

As shown in fig. 1 to 7, in the embodiment of the present invention, the lint filtering device 6 includes a plurality of filtering comb teeth 60 arranged along the circumferential direction of the inner barrel at intervals, and a filtering gap for passing water is formed by a comb tooth gap D between adjacent filtering comb teeth 60, and the comb tooth gap D is smaller than the aperture D of the water outlet; preferably, the filtering comb teeth 60 are of a sheet structure, an included angle a is formed between the sheet filtering comb teeth 60 and the radial section of the inner barrel 1, and a is greater than or equal to 0 and smaller than 90; the section is the section of the inner barrel at the connection position of the outer periphery side of the sheet-shaped filtering comb teeth 60 and the inner barrel, and the included angle a is the included angle between the section and the section where the sheet-shaped filtering comb teeth 60 are located.

In the embodiment of the invention, the annular thread scrap filtering device 6 is in a cone shape which is gradually narrowed from bottom to top, thread scraps intercepted by the scrap filtering device 6 move upwards under the impact of drainage water flow, so that the thread scraps hung on the thread scrap filtering device 6 are kept away from the lower part of the cone-shaped thread scrap filtering device 6, the phenomenon that the thread scraps are accumulated on the lower part of the cone-shaped thread scrap filtering device is avoided, and smaller drainage water flow can still pass through the filtering gap of the thread scrap filtering device, thereby realizing smooth drainage of the washing machine.

As shown in fig. 2 to 4, in the embodiment of the present invention, the annular lint filter device 6 may be divided into a cylindrical upper collecting part 65 and a conical lower filtering part 64, and the collecting part 65 has a barrel shape coaxial with the inner barrel 1. Preferably, in order to improve the lint collecting efficiency of the collecting portion, a collecting groove 66 recessed toward the water passing space 62 side and opened toward the radial direction side of the inner tub is provided on the collecting portion 65.

As shown in fig. 5 to 7, in the embodiment of the present invention, the annular lint filter device 6 may be divided into an upper collecting part 65 and a lower filtering part 64 having different tapers, and the taper a2 of the tapered collecting part 65 is greater than the taper a1 of the tapered filtering part 64.

The annular thread scraps filtering device is divided into an upper part and a lower part with different tapers so as to form a corner at the joint of the two parts, so that thread scraps can cross the inclined surface of the filtering part with the taper angle of a1 and be collected at the corner under the action of water flow impact and the centrifugal force of rotation of the inner barrel; meanwhile, since the collecting part having the taper angle a2 has a certain extension length, the collected lint is trapped there; in addition, as the filtered thread scraps are collected at the corners, the filtering part of the thread scraps filtering device is not reserved or is rarely reserved, the drainage water flow can smoothly enter the water passing space surrounded by the thread scraps filtering device and the inner barrel, and the drainage water flow of the washing machine is not blocked.

Preferably, as shown in fig. 2 to 7, in the embodiment of the present invention, in order to further improve the filtering efficiency of the lint filtering device, a collecting groove 66 recessed towards the inside of the water passing space and opened towards the inside of the inner tub is provided on the filtering comb 60 of the lint filtering device; the collecting groove 66 is arranged on the collecting part 65 of the filtering comb 60, so that the thread scraps impacted by the drainage water flow are hung at the collecting groove 66, and the accumulation of the thread scraps at the filtering part is prevented.

In the embodiment of the invention, the filtering comb teeth 60 are connected through at least one circle of fixed ring; preferably, each filtering comb 60 is integrally arranged with the fixed ring; it is further preferred that, as shown in figures 2 to 7, the top of each filter comb 60 is connected via a ring of water baffles 61, the water baffles 61 forming a fixed ring, and the water baffles 61 and each filter comb 60 are one piece. Therefore, the thread scrap filtering device formed by the plurality of filtering comb teeth forms an annular integral structure, the integrity of the thread scrap filtering device is ensured, and the installation of the thread scrap filtering device is facilitated.

In the embodiment of the invention, the lower end of each filtering comb 60 is connected with the inner wall of the inner barrel 1, and the upper end is connected with the inner wall of the inner barrel 1 through the water baffle 61, so that the upper end and the lower end of the thread scrap filtering device 6 formed by the filtering comb 60 are respectively connected with the inner barrel 1 to form a water passing space 62 for the flowing of the drainage water flow, and the drainage water flow which is attached to the inner wall of the inner barrel 1 and flows upwards under the action of centrifugal force is filtered by the thread scrap filtering device 6, flows through the water passing space 62 and is discharged out through the water outlet 7. Meanwhile, the drainage water flow is blocked by the water baffle, so that the drainage water flow of the washing machine is prevented from flowing out of the water passing space from the upper part and even splashing out of the opening of the inner barrel.

In the embodiment of the invention, the water baffle 61 is horizontally arranged and extends along the radial direction of the inner barrel 1, the inner circumference of the annular water baffle 61 is connected with the top end of each filtering comb 60, and the outer circumference is connected with the inner circumference of the inner barrel 1, so that the upper part of the annular water passing space 62 is completely shielded by the water baffle 61, the drainage water flowing into the water passing space is effectively prevented from overflowing from the upper part and even splashing to the inner barrel, and the smoothness of the drainage water of the washing machine is further effectively ensured.

In the embodiment of the invention, as shown in fig. 1, a plurality of water outlets 7 are arranged on the inner barrel side wall 102 at the top end of the inner barrel 1, the inner barrel 1 is rotatably sleeved in the outer barrel 31, the outer barrel 31 forms the inner barrel supporting piece 3, and the water outlets 7 are communicated with the inner part of the inner barrel 1 and the outer barrel 31 outside the inner barrel 1, so that the washing water flowing out from the water outlets 7 of the inner barrel 1 can be collected into the outer barrel 31 and then is discharged outside through the water outlet communicated with the bottom of the outer barrel. Preferably, in order to prevent the washing water from splashing, the outer tub 31 may be provided with a outer tub cover 12 for opening and closing the outer tub opening.

Or, a plurality of water outlets 7 are arranged at the top end of the inner barrel 1, a water collecting tank is arranged below the inner barrel 1, a flow channel extending downwards and vertically is arranged on the side wall 102 of the inner barrel, the upper ends of the flow channels are communicated with the water outlets 7 in a one-to-one opposite mode, the lower ends of the flow channels extend into the water collecting tank, the water outlets 7 are communicated with the flow channels inside the inner barrel 1 and outside the inner barrel 1, and the water is driven by centrifugal force to be lifted to the position of the barrel opening 103 of the inner barrel, is discharged to the flow channel through the water outlets 7 and then flows into the water collecting tank outside the inner barrel 1 after being guided by the flow channel. Preferably, the water collecting tank and the inner barrel 1 are coaxially arranged, and the radial size of an opening of the water collecting tank is larger than that of the inner barrel 1; it is further preferred that at least the lower end of the inner tub 1 is extended into the water collection tank, and a space is reserved between the outer wall of the inner tub 1 and the inner wall of the water collection tank to ensure that the inner tub rotates and that the drain water can flow into the water collection tank completely (not shown in the drawings).

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A washing machine characterized by: comprises an inner barrel forming a rotatable water container, a water outlet is arranged on the inner barrel, and a thread scrap filtering device is arranged at the water outlet.

2. A washing machine as claimed in claim 1, characterized in that: the thread scrap filtering device is one or a combination of a grid structure, a mesh structure and a comb tooth structure which cover the water outlet.

3. A washing machine as claimed in claim 1, characterized in that: the thread scrap filtering device and the inner barrel are integrated; or the thread scrap filtering device is an independent part fixedly arranged on the inner barrel;

preferably, the inner barrel is provided with a balance ring, and the thread scrap filtering device is fixedly connected with the balance ring or integrally formed.

4. A washing machine as claimed in any one of claims 1 to 3, characterized in that: the thread scrap filtering device is of a ring-shaped structure which is arranged on the inner periphery of the side wall of the inner barrel and covers the water outlet, the thread scrap filtering device and the inner wall of the inner barrel jointly enclose a water passing space, the water passing space is communicated with the outside of the inner barrel through the water outlet, and the water passing space is communicated with the inside of the inner barrel through a filtering gap on the thread scrap filtering device;

5. A washing machine as claimed in claim 4, characterized in that: the inner barrel is of a barrel-shaped structure with the axis vertically arranged and an opening at the upper end, and the side wall of the inner barrel is conical with a large radial size at the upper end and a small radial size at the lower end; the top of the side wall of the inner barrel is provided with at least one water outlet, and the annular thread scrap filtering device is arranged on the inner periphery of the top of the inner barrel.

6. A washing machine as claimed in claim 5, characterized in that: the thread scraps filtering device comprises a plurality of filtering comb teeth which are distributed along the circumferential direction of the inner barrel at intervals, a filtering gap for water to pass is formed by a gap between every two adjacent filtering comb teeth, and the width D of the filtering gap is smaller than the aperture D of the water outlet;

preferably, the filtering comb teeth are of a sheet structure, an included angle a is formed between the sheet filtering comb teeth and the radial section of the inner barrel, and a is larger than or equal to 0 and smaller than 90.

7. A washing machine as claimed in claim 6, characterized in that: the annular thread scraps filtering device is in a cone shape which is gradually narrowed from bottom to top.

8. A washing machine as claimed in claim 7, characterized in that: the annular thread scraps filtering device is divided into an upper collecting part and a lower filtering part;

the collecting part and the filtering part are in different tapers, and the taper a2 of the collecting part is larger than the taper a1 of the filtering part; or the collecting part is cylindrical and the filtering part is conical;

preferably, the filtering part is provided with a collecting tank which is sunken towards the inside of the water passing space and is arranged towards the opening of the inside of the inner barrel.

9. A washing machine as claimed in claim 7, characterized in that: the lower end of each filtering comb tooth is connected with the inner wall of the inner barrel, and the upper end is connected with the inner wall of the inner barrel through a water baffle.

10. A washing machine as claimed in claim 9, wherein: the water baffle is horizontally arranged and is annular and extends along the radial direction of the inner barrel, the inner periphery of the annular water baffle is connected with the top end of each filtering comb tooth, and the outer periphery of the annular water baffle is connected with the inner periphery of the inner barrel.