CN113136699A

CN113136699A - Drum washing machine

Info

Publication number: CN113136699A
Application number: CN202010050745.4A
Authority: CN
Inventors: 许升; 吕艳芬; 郝兴慧; 吴迪; 金学峰; 李涛; 方相九
Original assignee: Qingdao Haier Drum Washing Machine Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Drum Washing Machine Co Ltd; Haier Smart Home Co Ltd
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2021-07-20
Also published as: JP2023512925A; WO2021143465A1

Abstract

The invention discloses a drum washing machine, which comprises an inner drum, wherein washing water is independently contained during washing; the water collecting device is provided with an accommodating cavity which is open towards the side of the inner cylinder, and the inner cylinder is arranged in the accommodating cavity; the bottom wall of the accommodating chamber is provided with a water receiving groove, and the discharged water flow of the inner barrel is discharged into the water receiving groove. According to the invention, the water collecting device is arranged, and the water receiving groove is further arranged in the water collecting device, so that the discharged water flow of the inner barrel can be gathered in the water receiving recess, the splashing of the discharged water flow to the wall surface of the inner barrel is further reduced, and meanwhile, the discharge efficiency of the discharged water flow is improved under the gathering effect of the water receiving groove.

Description

Drum washing machine

Technical Field

The invention belongs to the field of household appliances, and particularly relates to a drum washing machine.

Background

In the prior art, a drum washing machine generally comprises an outer drum for hermetically containing water and a washing inner drum communicated with the outer drum, wherein the washing capacity is based on the inner drum, the design not only limits the volume of the inner drum, but also causes that dirt is easily accumulated between the inner drum and the outer drum and is not easy to clean. In view of the above problems, the technical personnel creatively propose the concept of designing the inner cylinder as a sealed container.

The Chinese patent with the application number of 2017103201913 discloses a drum washing machine, which comprises a machine body, a door body and an inner drum, wherein the inner drum is rotatably arranged in the machine body, and the inner drum contains water in the washing process; still include the supporting seat, the supporting seat passes through damping device to be installed in the organism, has open cavity that holds in the supporting seat, the bottom setting of inner tube is in the cavity that holds of supporting seat, the rotatable support of central pivot on the diapire of supporting seat. The invention realizes the water containing function of the inner cylinder, does not influence the rotation of the inner cylinder to realize the washing and dehydration functions, and replaces the original outer cylinder with larger volume by the supporting seat to realize the volume expansion of the inner cylinder.

However, the above patent proposes the present invention in view of the fact that the drain water is easily splashed on the side wall and the bottom wall of the inner cylinder during the draining process, and the wall surface of the inner cylinder is contaminated.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a drum washing machine.

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

a drum washing machine comprises

An inner cylinder for independently holding washing water during washing;

the water collecting device is provided with an accommodating cavity which is open towards the side of the inner cylinder, and the inner cylinder is arranged in the accommodating cavity;

the bottom wall of the accommodating chamber is provided with a water receiving groove, and the discharged water flow of the inner barrel is discharged into the water receiving groove.

Furthermore, the water collecting device comprises a bottom wall and a side wall, wherein the bottom wall and the inner cylinder are coaxially arranged, the side wall is arranged at the edge of the bottom wall, extends towards the direction of the inner cylinder, and is annularly arranged outside the inner cylinder;

the water receiving groove is sunken towards the direction far away from the inner barrel, and the ring is arranged on the bottom wall.

Further, the water receiving groove comprises a first side wall, a second side wall and a groove bottom wall;

the bottom wall of the groove is arranged in parallel with the bottom wall of the inner cylinder, the first side wall is formed by turning over the edge of the bottom wall in the direction far away from the inner cylinder and is connected with the bottom wall of the groove, and the second side wall is respectively connected with the bottom wall of the groove and the side wall of the water collecting device;

preferably, the water receiving groove and the bottom wall are integrally formed.

the first side wall is connected with the edge of the bottom wall of the water collecting device and extends in the direction far away from the inner cylinder;

the second side wall is connected with the side wall of the water collecting device and extends towards the direction close to the inner cylinder;

the bottom wall of the groove is respectively connected with the first side wall and the second side wall;

the water receiving groove is integrally formed and is fixedly connected with the bottom wall and the side wall of the water collecting device;

preferably, the water receiving groove is connected with the water collecting device in a welding mode, a screw connection mode, a riveting connection mode or a plug-in connection mode.

Further, the water receiving groove is a circumferentially surrounding groove formed in the bottom wall of the water collecting device.

Further, a water collecting device water outlet is formed in the side wall of the water collecting device positioned at the lower part of the inner cylinder;

the side wall between the outer edge of the water collecting device water outlet and the water receiving groove and the side wall between the outer edge of the water collecting device water outlet and the outer edge of the side wall of the water collecting device are both obliquely arranged, and the water collecting device water outlet is located at the lowest position of the oblique side wall.

Further, the water collecting device comprises a water retaining ring which is annularly arranged on the outer edge of the side wall of the water collecting device;

the side wall between the outer edge of the water outlet of the water collecting device and the water receiving groove and the side wall between the outer edge of the water outlet of the water collecting device and the water retaining ring are both obliquely arranged, and the water outlet of the water collecting device is located at the lowest position of the oblique side wall.

Further, the device comprises a water outlet guide structure which is communicated with the inner cylinder and used for guiding the discharged water flow of the inner cylinder;

the water discharging end of the water outlet guide structure extends into the water receiving groove.

Further, the inner cylinder comprises an inner cylinder bottom wall and an inner cylinder side wall;

the water outlet device is arranged on the water outlet, the water outlet guide structure is arranged on the outer wall of the side wall of the inner barrel, one end of the water outlet guide structure is fixed at the water outlet, the other end of the water outlet guide structure extends towards the bottom wall of the inner barrel, and the water discharging end of the water outlet guide structure extends into the water receiving groove.

the water outlet guide structure is arranged on the inner wall of the side wall of the inner barrel, the water outlet guide structure is a guide flow passage which extends towards the bottom wall of the inner barrel and is communicated with the outside of the inner barrel, a water outlet which is communicated with the inner barrel and the guide flow passage is formed in the water outlet guide structure, and a water outlet device is arranged on the water outlet.

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

1) The invention removes the outer cylinder structure, realizes the expansion of the inner cylinder, and simultaneously leads the discharged water flow of the inner cylinder to the rear part of the bottom wall of the inner cylinder by arranging the water outlet guide structure on the wall surface of the inner cylinder, thereby reducing the splashing of the discharged water flow on the wall surface of the inner cylinder, reducing the pollution to the cylinder wall, ensuring the cleanness of the cylinder wall, improving the washing effect, and reducing the cleaning difficulty when the water outlet guide structure is detachably arranged;

2) according to the invention, the water collecting device is arranged, and the water receiving groove is further arranged in the water collecting device, so that the discharged water flow of the inner barrel can be gathered in the water receiving recess, the splashing of the discharged water flow to the wall surface of the inner barrel is further reduced, and meanwhile, the discharge efficiency of the discharged water flow is improved under the gathering effect of the water receiving groove.

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 view of a washing machine according to the present invention;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;

FIG. 3 is an enlarged view of the structure of FIG. 2 at B according to the present invention;

FIG. 4 is an enlarged schematic view of another embodiment of the present invention at B of FIG. 2;

FIG. 5 is an enlarged schematic view of another embodiment of the present invention at B of FIG. 2;

FIG. 6 is an enlarged schematic view of another embodiment of the present invention at B of FIG. 2;

FIG. 7 is an enlarged schematic view of another embodiment of the present invention at B of FIG. 2;

FIG. 8 is a schematic view of a portion of the internal structure of the lifting rib of FIG. 1 according to the present invention;

fig. 9 is an enlarged view of the water receiving groove of fig. 2 according to the present invention.

In the figure: 100. a housing; 120. a machine door; 300. a controller; 400. a detergent box; 410. an inner barrel; 411. an inner cylinder door; 412. lifting the ribs; 413. a sealing valve; 414. a water outlet guide structure; 415. a water outlet; 416. the side wall of the inner cylinder; 417. the bottom wall of the inner cylinder; 420. a water collection device; 421. a water receiving groove; 4211. a first side wall; 4212. a second side wall; 4213. a groove bottom wall; 422. a side wall; 423. a water retaining ring; 424. a water outlet of the water collecting device; 425. a bottom wall; 430. a sealing structure; 440. a water inlet structure; 500. a motor; 600. a water inlet pipe; 700. a water inlet valve; 800. a drainage device; 810. and a water discharge pipe.

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 and 2, the drum washing machine of the present invention includes a cabinet 100, a door 120, a controller 300, an inner tub 410, a water collecting device 420, and a water discharging device 800. Compared with the traditional washing machine, the drum washing machine provided by the invention has the advantages that the outer drum is omitted, the water collecting device is adopted to collect and guide the discharged water flow of the inner drum to the drainage device, the capacity expansion of the inner drum 410 is facilitated, and the utilization rate of the inner drum of the washing machine is improved.

The inner cylinder 410 is a sealed container, independently contains washing water during washing, and comprises an inner cylinder bottom wall 417, an inner cylinder side wall 416 and an inner cylinder door 411, wherein the inner cylinder door 411 is arranged on the inner cylinder in an opening and closing manner, so that a user can put in or take out clothes conveniently. The water outlet device is arranged in the inner barrel 410 and comprises a lifting rib 412 and a sealing valve 413 (shown in fig. 8). The lifting rib 412 is provided with a water through hole, the sealing valve 413 is arranged on the water outlet 415 in an openable and closable manner, when the inner barrel 410 is dehydrated, the sealing valve 413 is opened under the action of centrifugal force, the water outlet 415 is communicated with the inner barrel 410, and discharged water in the inner barrel flows out through the water outlet 413.

To facilitate the flow of the discharged water in the inner tub 410 to be guided into the water collecting device 420, an outlet guide structure 414 is further included. The water outlet guiding structure 414 is communicated with the inner cylinder 410, and guides the discharged water flow of the inner cylinder 410 to be directly discharged to the water collecting device 420, so that the splashing of the discharged water flow to the wall surface of the inner cylinder is reduced, and the pollution to the wall surface of the inner cylinder is reduced.

The outlet guide 414 is provided on the inner cylinder side wall 416 and has a guide portion extending in the axial direction of the inner cylinder.

Example one

In this embodiment, the outlet guide structure 414 is disposed on the outer wall of the inner cylinder side wall 416, which has little influence on the original structure of the inner cylinder 410, and the outlet guide structure 414 can be directly installed on the inner cylinder side wall 416 as an external component, so that the operation is simple, and the assembly cost is reduced.

As shown in fig. 3 and 4, a water outlet 415 is provided on the inner cylinder side wall 416, and a water outlet device (as shown in fig. 8) provided on the water outlet 415 is removed, and the water outlet guide structure 414 is provided on the outer wall of the inner cylinder side wall 416, and is fixed at the water outlet 415, so that the discharged water flow of the inner cylinder 410 flowing out through the water outlet 415 can directly enter the water outlet guide structure 414. The other end of the guide portion extends toward the inner cylinder bottom wall 417 to the rear of the inner cylinder bottom wall 417.

As an embodiment of the present invention, as shown in fig. 3, the guiding portion is a guiding flow channel, one end of the guiding flow channel is communicated with the water outlet 415, and the other end extends toward the inner cylinder bottom wall 417. Preferably, the outlet guide 414 includes a housing, and the guide flow channel penetrates through the interior of the housing. The outlet water guide structure 414 has a housing, and a guide flow channel is arranged in the housing, so that the outlet water guide structure 414 is connected with the inner cylinder side wall 416 as an independent structure, and the direct contact between the discharged water flow of the inner cylinder 410 and the outer wall of the outer cylinder side wall 416 is directly avoided, thereby preventing the inner cylinder side wall 416 from being polluted.

Meanwhile, preferably, the water outlet guide structure 414 is detachably disposed on the outer wall of the inner tub side wall 416, so that when the operation time of the washing machine is long and dirt is accumulated or even blocked in the water outlet guide structure 414, the water outlet guide structure can be conveniently removed for cleaning or maintenance, replacement and other operations.

More preferably, the outlet guide structure 414 is an outlet guide pipeline, and is made of easily available materials, simple to manufacture, and convenient to install.

In order to facilitate the installation of the water outlet guide structure 414, a fixing clamp seat or other structures facilitating the fixing of the water outlet guide structure 414 can be arranged on the outer wall of the inner cylinder 410, so as to prevent the water outlet guide structure from shaking or even falling off under the action of centrifugal force when the inner cylinder 410 is dehydrated.

As another alternative of this embodiment, as shown in fig. 4, the guiding portion is a guiding wall, one end of which faces the water outlet 415 at an interval, and the other end of which extends toward the inner cylinder bottom wall 417. The discharged water flow of the inner cylinder 410 flowing out of the water outlet 415 flows along the guide wall toward the inner cylinder bottom wall 417 under the blocking effect of the guide wall, so that the discharged water flow is prevented from splashing around to pollute the wall surface of the inner cylinder 410. In order to optimize the blocking effect of the guide wall, the width of the guide wall is larger than the size of the water outlet 415.

Preferably, the guide wall and the inner cylinder side wall 416 are integrally formed, or the guide wall is provided with a connecting structure which is fixedly connected with the inner cylinder side wall 416 through a fastener, so that the outlet water guide structure 414 is prevented from shaking or even falling off under the action of centrifugal force when the inner cylinder 410 is dehydrated.

Alternatively, in order to better block the discharged water flow, the water outlet guiding structure 414 further includes a connecting sidewall at both sides of the guiding wall, the connecting sidewall and the guiding wall form a groove structure, and the connecting sidewall is connected to the inner cylinder sidewall 416. In this scheme, the width of guide wall only need can cover delivery port 415 can, connect the lateral wall and be connected the back with inner tube lateral wall 416 for guide wall is the trough-like, has formed the runner of discharge water stream between guide wall and the inner tube lateral wall, and the discharge water stream of inner tube 410 flows along the runner, has further reduced the splash of discharge water stream to the inner tube wall, has reduced the pollution.

The water collecting device 420 is coaxially sleeved at the rear part of the inner cylinder 410, the water collecting device 420 is provided with an accommodating chamber facing to the opening of the inner cylinder side, and a water retaining ring 423 is arranged on the edge of the opening of the accommodating chamber. The water discharge end of the water outlet guide 414 extends into the accommodating chamber. The water blocking ring 423 prevents the water discharged into the water collecting device 420 from moving to the front end of the inner cylinder 410 to cause pollution to the front end of the inner cylinder 410.

Preferably, the joint of the outlet water guide structure 414 and the inner cylinder side wall 416 is arranged inside the water retaining ring 423.

As shown in fig. 2, a water collecting device water outlet 424 is formed in a side wall 422 of the water collecting device 420 located at the lower portion of the inner cylinder 410, a side wall between an outer edge of the water collecting device water outlet 424 and a bottom wall of the water collecting device and a side wall between an outer edge of the water collecting device water outlet 424 and the water retaining ring 423 are both inclined, and the water collecting device water outlet 424 is located at the lowest position of the inclined side wall. As shown in fig. 2, the drainage outlet 424 of the water collecting device is connected to the drainage device 800, so that the drainage entering the water collecting device 420 can rapidly flow into the drainage device 800 under the action of the inclined side wall and is drained out of the washing machine through the drainage pipe 810, thereby preventing the drainage from being retained in the water collecting device 420 and forming dirt which is difficult to clean.

In order to further optimize the water collecting performance of the water collecting device 420 and reduce the pollution of the drained water to the wall surface of the inner cylinder, the bottom wall of the accommodating chamber is provided with a water receiving groove 421, the water receiving groove 421 is recessed towards the direction far away from the inner cylinder 410 and is annularly arranged, and the drainage end of the water outlet guide structure 414 extends into the water receiving groove 421. After the drained water enters the water receiving groove 421, the drained water is quickly gathered to the lower part of the water collecting device 420 under the blocking action of the groove wall, and the water collecting efficiency is improved.

Preferably, a side wall between an outer edge of the water collector discharge opening 424 and the water receiving groove 421 and a side wall between an outer edge of the water collector discharge opening 424 and the water blocking ring 423 are both inclined, and the water collector discharge opening 424 is located at the lowest position of the inclined side walls.

Example two

The outlet guide 414 in this embodiment is disposed on the inner wall of the inner cartridge sidewall 416.

As an alternative of this embodiment, as shown in fig. 5, the guide portion is a guide wall, one end of which is fixedly connected to the inner cylinder bottom wall 417 or integrally formed therewith, and the other end of which extends into the inner cylinder away from the inner cylinder bottom wall 417 and is connected to the inner wall of the inner cylinder side wall 416. The inner cylinder side wall 416 is suspended from the end extending toward the inner cylinder bottom wall 417 and extends to the rear of the inner cylinder bottom wall 417.

Preferably, the guide wall is circumferentially arranged around the edge of the bottom wall 417 of the inner cylinder in an annular manner, the water outlet device is arranged on the inner wall of the guide wall, an annular flow passage is formed between the guide wall and the side wall 416 of the inner cylinder, and the water outlet 415 is arranged on the guide wall and is communicated with the inner cylinder and the annular flow passage. The guide wall is annularly arranged inside the side wall 416 of the inner barrel, so that the volume of the inner barrel can be further increased, and the utilization rate of the inner barrel 410 is improved. And the guide wall that the annular set up simple structure, the processing degree of difficulty is little, easily realizes.

As another alternative of this embodiment, as shown in fig. 6 and 7, the guiding portion is a guiding flow channel extending toward the inner cylinder bottom wall 417 and communicating with the outside of the inner cylinder, the water outlet guiding structure 414 is provided with a water outlet 415 communicating with the inner cylinder 410 and the guiding flow channel, and the water outlet 415 is provided with a water outlet device (the specific structure is shown in fig. 8 and is not shown). Compared with the previous solution of the present embodiment, the wall structure of the inner cylinder 410 in the present embodiment is slightly changed, and the end of the inner cylinder side wall 416 extending toward the inner cylinder bottom wall 417 is the same as that of the conventional washing machine, and the inner cylinder side wall 416 and the inner cylinder bottom wall 417 are integrally formed and are not suspended.

The outlet guide structure 414 is a cover installed on the inner wall of the inner cylinder side wall 416, an independent guide flow channel (as shown in fig. 6) is provided in the cover, and the outlet guide structure 414 is connected with the inner cylinder side wall 416 as an independent element, so that the inner cylinder side wall 416 is directly prevented from being polluted by the direct contact between the discharged water flow of the inner cylinder 410 and the inner wall of the outer cylinder side wall 416.

Meanwhile, preferably, the water outlet guide structure 414 is detachably arranged on the inner wall of the inner barrel side wall 416, so that when the operation time of the washing machine is long and dirt is accumulated or even blocked in the water outlet guide structure 414, the water outlet guide structure can be conveniently taken down for cleaning or maintenance, replacement and other operations.

In order to facilitate the installation of the water outlet guide structure 414, a fixing clamp seat or other structures facilitating the fixing of the water outlet guide structure 414 can be arranged on the inner wall of the inner cylinder 410 at the arrangement position of the water outlet guide structure 414, so as to prevent the water outlet guide structure from shaking or even falling off under the action of centrifugal force when the inner cylinder 410 is dehydrated.

In order to communicate the guiding flow passage with the outside of the inner cylinder, an opening (not shown) is formed in the side wall 416 of the inner cylinder or the bottom wall 417 of the inner cylinder, the covering member extends to the opening, and the guiding flow passage is communicated with the opening.

Or, in order to further avoid the pollution of the outer wall of the inner cylinder caused by drainage, the covering part extends out of the opening, and the guide flow channel extends to the outside of the inner cylinder.

As another embodiment of the present invention, as shown in fig. 7, the cover member and the inner wall of the inner cylinder side wall 416 are connected in a sealing manner to form the guide flow passage. An opening is formed in the side wall 416 of the inner cylinder or the bottom wall 417 of the inner cylinder, the covering part extends to the opening, and the guide flow channel is communicated with the opening, or the covering part extends out of the opening, and the guide flow channel extends to the outside of the inner cylinder.

Preferably, the outlet water guiding structure 414 is groove-shaped, and the groove wall and the inner wall of the inner cylinder side wall 416 are connected in a sealing manner to form the guiding flow channel. An opening is formed in the side wall 416 or the bottom wall 417 of the inner cylinder, and the groove body extends to the opening and is communicated with the opening, so that the drainage can be directly discharged to the outside of the inner cylinder. To further avoid contamination of the outer wall of the inner barrel by the drainage, the slot may extend through the opening and extend outside the inner barrel.

Preferably, the water discharging end of the water outlet guide 414 is disposed inside the water retaining ring 423.

EXAMPLE III

This embodiment has introduced a water receiving recess.

As shown in fig. 1 to 2, the drum washing machine includes an inner tub 410 for independently containing washing water during washing. And a water collecting means 420 having an accommodating chamber opened toward the inner cylinder side, in which the inner cylinder 410 is disposed. The bottom wall 417 of the accommodating chamber is provided with a water receiving groove 421, and the discharged water flow of the inner cylinder 410 is discharged into the water receiving groove 421. The discharged water flow of the inner cylinder 410 can be gathered in the water receiving recess 421, the splashing of the discharged water flow to the wall surface of the inner cylinder 410 is reduced, and meanwhile, the discharge efficiency of the discharged water flow is improved under the gathering effect of the water receiving groove 421.

As shown in fig. 2, the water collecting device 420 comprises a bottom wall 425 and a side wall 422, wherein the bottom wall 425 is coaxially arranged with the inner cylinder and is arranged at the rear part of the inner cylinder 410, the side wall 422 is arranged at the edge of the bottom wall 425, extends towards the direction of the inner cylinder 410 and is annularly arranged at the outer part of the inner cylinder 410. The extension length of the side wall 422 is specifically set according to the position of the water outlet 415, and preferably, the water outlet 415 is arranged within the surrounding range of the side wall 422. Particularly, when the water outlet 415 is provided in the first embodiment, the water outlet 415 is provided within the surrounding range of the side wall 422, so that the discharged water flow in the inner cylinder 410 can be effectively blocked, and the splash of the discharged water flow on the wall surface of the inner cylinder 410 is prevented.

As shown in fig. 9, the water receiving groove 421 is recessed in a direction away from the inner cylinder 410, and is annularly disposed on the bottom wall 425.

As shown in fig. 9, the water receiving groove 421 includes a first sidewall 4211, a second sidewall 4212 and a groove bottom wall 4213.

In one embodiment of the present invention, the bottom wall 4213 of the concave groove is parallel to the bottom wall 417 of the inner cylinder, the first side wall 4211 is formed by folding the edge of the bottom wall 425 in a direction away from the inner cylinder 410 and is connected to the bottom wall 4213 of the concave groove, and the second side wall 4212 is connected to the bottom wall 4213 of the concave groove and the side wall 422 of the water collecting device, respectively. Preferably, the water receiving groove 421 and the bottom wall 425 are integrally formed. After the discharged water flow in the inner cylinder 410 enters the water receiving groove 421, the first side wall 4211 and the second side wall 4212 block the upwelling of the water flow, so that the splash pollution of the discharged water flow to the bottom wall 417 and the side wall 416 of the inner cylinder is reduced.

As another alternative in this embodiment, the first sidewall 4211 is connected to the edge of the bottom wall 425 of the water collecting device and extends in a direction away from the inner cylinder 410, the second sidewall 4212 is connected to the sidewall 422 of the water collecting device and extends in a direction close to the inner cylinder 410, and the bottom wall 4213 of the groove is connected to the first sidewall 4211 and the second sidewall 4212, respectively. In this embodiment, the water receiving groove 421 is integrally formed and is used as an independent member to be fixedly connected with the bottom wall 425 and the side wall 422 of the water collecting device. As an independent component and fixed on the water collecting device 420, the water collecting groove 421 is easy to process, and is particularly beneficial to cleaning and maintaining the water collecting groove 421 in the later period when the water collecting groove 421 is detachably and fixedly connected with the water collecting device 420.

The water receiving groove 421 and the water collecting device 420 may be welded, screwed, riveted or plugged.

As another alternative in this embodiment, the water receiving groove 421 is a circumferentially surrounding groove (not shown) formed on the bottom wall 425 of the water collecting device. The existing structure of the water collecting device 420 is directly utilized, the groove is directly formed in the bottom wall 425, the structure is simple, and the processing is convenient.

As shown in fig. 9, the water collecting device 420 further includes a water collecting device drain opening 424 formed in a side wall 422 of the water collecting device located at a lower portion of the inner tub 410. The side wall between the outer edge of the water collecting device water outlet 424 and the water receiving groove 421 and the side wall between the outer edge of the water collecting device water outlet 424 and the outer edge of the side wall 422 of the water collecting device are both obliquely arranged, and the water collecting device water outlet 424 is positioned at the lowest position of the oblique side walls. This setting makes the inner tube discharge water flow that gets into in water receiving recess 421 under the effect of gravity, and edge slope lateral wall 422 that can be quick gets into water collecting device outlet 424, has avoided discharge water flow to be detained the siltation in lateral wall 422, forms the caking, pollutes the drainage environment and blocks the outlet even.

As shown in fig. 9, the further water collecting device 420 further includes a water blocking ring 423 annularly disposed on an outer edge of a sidewall 422 of the water collecting device. The side wall between the outer edge of the water collecting device water outlet 424 and the water receiving groove 421 and the side wall between the outer edge of the water collecting device water outlet 424 and the water retaining ring 423 are both obliquely arranged, and the water collecting device water outlet 424 is positioned at the lowest position of the oblique side wall. The water retaining ring 423 prevents the discharged water flow of the inner drum 410 from flowing to the outside of the water collecting device 420 along the sidewall 422, thereby polluting the environment inside the washing machine.

As shown in fig. 9, in order to conveniently guide the discharged water in the inner tub 410 to the water receiving groove 421, the washing machine in this embodiment includes a water outlet guide structure 414. The water outlet guiding structure 414 is communicated with the inner cylinder 410 and guides the water outlet flow of the inner cylinder, and the water outlet end of the water outlet guiding structure 414 extends into the water receiving groove 421.

The specific arrangement of the water outlet guiding structure 414 is described in detail in the first and second embodiments, and is not described herein again.

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 drum washing machine comprises

An inner cylinder for independently holding washing water during washing;

the method is characterized in that:

2. A drum washing machine according to claim 1, characterized in that:

the water collecting device comprises a bottom wall and a side wall, the bottom wall and the inner cylinder are coaxially arranged, the side wall is arranged at the edge of the bottom wall, extends towards the direction of the inner cylinder, and is annularly arranged outside the inner cylinder;

3. A drum washing machine according to claim 2, characterized in that:

the water receiving groove comprises a first side wall, a second side wall and a groove bottom wall;

4. A drum washing machine according to claim 2, characterized in that:

5. A drum washing machine according to claim 2, characterized in that:

the water receiving groove is a groove which is arranged on the bottom wall of the water collecting device and circumferentially surrounds the water receiving groove.

6. A drum washing machine according to any one of claims 1-5, characterized in that:

the side wall of the water collecting device positioned at the lower part of the inner cylinder is provided with a water outlet of the water collecting device;

7. A drum washing machine according to claim 6, characterized in that:

the water-retaining ring is annularly arranged on the outer edge of the side wall of the water collecting device;

8. A drum washing machine according to claim 6, characterized in that:

the water outlet guide structure is communicated with the inner cylinder and used for guiding the discharged water flow of the inner cylinder;

9. A drum washing machine according to claim 8, characterized in that:

the inner cylinder comprises an inner cylinder bottom wall and an inner cylinder side wall;

10. A drum washing machine according to claim 8, characterized in that: