CN219218445U

CN219218445U - Outer cylinder and drum washing machine

Info

Publication number: CN219218445U
Application number: CN202223177752.4U
Authority: CN
Inventors: 李加欣; 李秀龙; 夏浩; 郝志刚; 李敬德
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: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-06-20
Anticipated expiration: 2032-11-28

Abstract

The utility model provides an outer barrel, which comprises a body, a dividing angle, a circulating cavity arranged at the bottom of the body and a water outlet arranged at the bottom of the circulating cavity, wherein the dividing angle is arranged at the joint of the circulating cavity and any side of the body, and a water return section of the circulating cavity is connected with the body through the dividing angle; the horizontal distance between the backwater section and the circle center of the body is gradually increased from the segmentation angle downwards. Because of the arrangement of the backwater section of the circulation cavity, water flow in the washing stage circulates in the circulation cavity for a plurality of times, so that the bottom of the outer cylinder is cleaned for a plurality of times, and the aim of cleaning is fulfilled; during the dehydration stage, water flow passing through the water return section collides with water flow between the outer cylinder and the inner cylinder, so that water flow originally circulating between the outer cylinder and the inner cylinder due to centrifugal action falls to the bottom of the outer cylinder and is directly discharged from a water outlet arranged at the circulating cavity, and the dehydration efficiency is improved. The utility model also provides a drum washing machine adopting the outer drum.

Description

Outer cylinder and drum washing machine

Technical Field

The utility model relates to the technical field of washing machines, in particular to an outer cylinder and a drum washing machine.

Background

In the long-term use process of the drum washing machine, dirt can be adhered between the inner drum and the outer drum, and compared with other positions, more dirt can be adhered to the bottom of the outer drum due to gravity, if the dirt is not removed in time, secondary pollution of clothes can be possibly caused, and user experience is influenced.

The present utility model has been made in view of this.

Disclosure of Invention

An object of the present utility model is to overcome the disadvantages of the prior art and to provide an outer tub in which dirt adhering to the bottom of the outer tub is washed by a circulation chamber provided at the bottom of the outer tub body, and at the same time, the dehydrating efficiency is improved.

A second object of the present utility model is to provide a drum washing machine employing the above outer tub.

To achieve the first object, the present utility model adopts the following basic concept:

the outer barrel comprises a body, a dividing angle, a circulating cavity arranged at the bottom of the body and a water outlet arranged at the bottom of the circulating cavity, wherein the dividing angle is arranged at the joint of the circulating cavity and any side of the body, and a water return section of the circulating cavity is connected with the body through the dividing angle;

the horizontal distance between the backwater section and the circle center of the body is gradually increased from the segmentation angle downwards.

Further, the backwater section is of an arc-shaped structure.

Further, the central angle of the backwater section is smaller than or equal to 90 degrees.

Further, the circulation cavity further comprises a first connecting section and a second connecting section, the first connecting section is connected with the body, and the second connecting section is arranged between the first connecting section and the water return section;

the first connecting section and/or the second connecting section adopt an arc-shaped structure.

Further, the radii of the second connecting section and the backwater section are equal.

Further, the tangential direction of the connection part of the second connection section and the backwater section is the same.

Further, from the junction of first linkage segment and body to the junction of first linkage segment and second linkage segment, the distance of first linkage segment and urceolus centre of a circle increases gradually.

Further, the first connecting section extends along a tangential direction of a connection part of the body and the first connecting section.

Further, the depth of the circulation cavity is greater than or equal to 1/2 of the depth of the body and less than or equal to the depth of the body.

In order to achieve the second object, the utility model adopts the following basic conception of the technical scheme:

a drum washing machine comprises an inner drum and an outer drum nested outside the inner drum, wherein the outer drum is the outer drum.

After the technical scheme is adopted, compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, due to the arrangement of the backwater section of the circulation cavity, water flow in the washing stage circulates in the circulation cavity for a plurality of times, so that the bottom of the outer cylinder is cleaned for a plurality of times, and the aim of cleaning is fulfilled; during the dehydration stage, water flow passing through the water return section collides with water flow between the outer cylinder and the inner cylinder, so that water flow originally circulating between the outer cylinder and the inner cylinder due to centrifugal action falls to the bottom of the outer cylinder and is directly discharged from a water outlet arranged at the circulating cavity, and the dehydration efficiency is improved.

2. The drum washing machine of the utility model can realize self-cleaning of the bottom of the outer drum and can improve the dehydration efficiency by adopting the outer drum with the circulation cavity.

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

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort. In the drawings:

FIG. 1 is a side view of an outer barrel;

FIG. 2 is a front view of the outer tub;

FIG. 3 is a schematic diagram of the wash stage water circulation;

FIG. 4 is a schematic diagram of the water circulation during the dehydration stage.

The main elements in the figure are illustrated: 1. a body; 2. dividing the angle; 3. a circulation chamber; 301. a backwater section; 302. a first connection section; 303. a second connection section; 4. a left gap; 5. an upper gap; 6. a right gap; 7. an outer cylinder; 8. an inner cylinder.

It should be noted that the drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model, and the following embodiments are used to illustrate the present utility model, but are not intended to limit the scope of the present utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 and 2, the utility model provides an outer cylinder, which comprises a body 1, a dividing angle 2, a circulating cavity 3 arranged at the bottom of the body 1 and a water outlet arranged at the bottom of the circulating cavity 3, wherein the dividing angle 2 is arranged at the joint of the circulating cavity 3 and any side of the body 1, and a water return section 301 of the circulating cavity 3 is connected with the body 1 through the dividing angle 2;

from the division angle 2 downwards, the horizontal distance between the backwater section 301 and the center of the body 1 gradually increases.

The dividing angle 2 is preferably a round angle, and when the water flow in the washing stage collides with the dividing angle 2, one part moves along the inner wall of the body 1, and the other part moves along the trend of the water return section 301.

The partition angle 2 and the return water section 301 may be provided on either side of the body 1. Specifically, the position of the partition angle 2 and the return water section 301 is related to the rotational direction of the inner cylinder 8. For example, when the inner tub 8 rotates clockwise in the dehydration stage of the washing machine, the partition angle 2 and the return water section 301 are provided on the left side of the main body 1.

During the dehydration stage, after water flow is thrown out from the inner cylinder 8 due to centrifugal action, the water flow moves along the inner walls of the body 1 and the circulating cavity 3, and part of water flow is discharged from a water outlet at the bottom of the circulating cavity 3; the residual water flow moves in the reverse direction at the backwater section 301, and the water flow moving in the anticlockwise direction and the water flow thrown out from the inner cylinder 8 and moving in the clockwise direction are flushed down and discharged from the water outlet at the bottom of the circulation cavity 3.

In the washing stage, since the water level at the bottom of the tub 7 is high, for example, the water level in the washing stage is at least lower than that of the laundry, the circulation of water is different from that in the dehydrating stage. At this time, due to the existence of the dividing angle 2, the water flow moving in the clockwise direction is divided into two parts at the dividing angle 2, and one part continues to circulate in the clockwise direction in the gap between the inner cylinder 8 and the outer cylinder 7; the other part moves along the inner wall of the backwater section 301 of the circulation cavity 3, namely falls down from the partition angle 2, when the backwater section returns to the bottom of the circulation cavity 3, water flows and water flows moving clockwise are flushed, jump up, and circulate at the circulation cavity 3 again along the clockwise direction due to the driving of the rest water flows moving clockwise, so that the bottom of the outer cylinder 7 is circularly flushed, dirt accumulated at the bottom of the outer cylinder 7 is avoided, and the user experience is influenced.

In yet another embodiment of the present utility model, the inner tub 8 is rotated counterclockwise during the dehydration stage of the washing machine, and the partition angle 2 and the return water section 301 are disposed at the right side of the body 1.

During the dehydration stage, after water flow is thrown out from the inner cylinder 8 due to centrifugal action, the water flow moves along the inner walls of the body 1 and the circulating cavity 3, and part of water flow is discharged from a water outlet at the bottom of the circulating cavity 3; the residual water flow moves in the reverse direction at the water return section 301, and the water flow moving clockwise and the water flow thrown out from the inner cylinder 8 and moving anticlockwise are flushed down and discharged from the water outlet at the bottom of the circulation cavity 3.

When in the washing stage, the water circulation condition of the water flow is different from that of the dewatering stage due to the higher water level at the bottom of the outer cylinder. At this time, due to the existence of the dividing angle 2, the water flow moving in the counterclockwise direction is divided into two parts at the dividing angle 2, and one part continues to circulate in the counterclockwise direction in the gap between the inner cylinder 8 and the outer cylinder 7; the other part moves along the inner wall of the backwater section 301 of the circulation cavity 3, namely falls down from the partition angle 3, and water flows are flushed with water flowing along the anticlockwise direction when at the bottom of the circulation cavity 3, jump up and circulate at the circulation cavity 3 again along the anticlockwise direction, so that the bottom of the outer cylinder is circularly flushed, and dirt accumulated at the bottom of the outer cylinder is prevented from affecting user experience.

The water return section 301 may be provided in a straight line, an arc or other form. However, there is a corner when the linear return water section 301 is connected to the second connection section 303 of the circulation chamber 3, and there is a large loss in the speed of the water flow due to the corner when the water flow moves along the second connection section 303 and the return water section 301.

Preferably, the backwater section 301 of the present utility model has an arc structure, and its central angle is less than or equal to 90 °.

Further, the central angle of the water return section 301 may be set to about 60 °, so that the direction of the water return section 3 at the joint of the water return section 301 and the dividing angle 2 is substantially consistent with the tangential direction of the other side body 1, so that the water flow moving along the inner wall of the water return section 301 is as close to 0 as possible when the water flow is in collision with the water flow moving along the tangential direction of the inner barrel 8, the water flow falls to the bottom of the circulation cavity 3, and is discharged from the water outlet arranged at the bottom of the circulation cavity 3, and the water flow is prevented from being scattered by collision when the directions are inconsistent, and the water flow of the rest is prevented from being influenced.

The circulating cavity 3 comprises a backwater section 301 and a second connecting section 303, and further comprises a first connecting section 302, wherein the first connecting section 302 is connected with the body 1, and the second connecting section 303 is arranged between the first connecting section 302 and the backwater section 301.

The first and

second connection sections

302, 303 may be rectilinear, arcuate, or otherwise. Considering that when the first connecting section 302 and the second connecting section 303 are arranged in a straight line shape, a corner exists at the joint of the first connecting section 302 and the second connecting section 303, and the speed of water flow can be greatly lost when moving in the circulation cavity 3, the first connecting section 302 and the second connecting section 303 of the utility model adopt arc structures.

Further, the radii of the second connection section 303 and the return water section 301 are equal, and the central angle of the second connection section 303 is set to 90 °.

From the connection between the first connecting section 302 and the body 1 to the connection between the first connecting section 302 and the second connecting section 303, the distance between the first connecting section 302 and the center of the body 1 gradually increases, i.e. the distance between the inner cylinder 8 and the outer cylinder 7 gradually increases.

Preferably, the first connecting section 302 extends along the tangential direction of the connection part between the body 1 and the first connecting section 302, that is, the body 1 and the first connecting section 302 are in smooth transition, so that the phenomenon that the flow of water flow is influenced by the existence of a corner can be avoided, and no sharp angle exists outside the outer cylinder 7, thereby being convenient to carry and install.

The first connection section 302 and the second connection section 303 may also be arranged as a smooth transition, i.e. at the junction of the first connection section 302 and the second connection section 303, the tangential direction of both the first connection section 302 and the second connection section 303 is the same.

The second connection section 303 and the water return section 301 may also be provided with a smooth transition, i.e. at the connection between the second connection section 303 and the water return section 301, the tangential directions of the second connection section 303 and the water return section 301 are the same.

Further, the depth of the circulation chamber 3 is greater than or equal to 1/2 of the depth of the body 1 and less than or equal to the depth of the body 1, and preferably, the circulation chamber 3 of the present utility model is set to 3/4 of the depth of the body 1.

In one or more embodiments of the present utility model, one side of the body 1 is connected with the backwater section 301 of the circulation cavity 3 through the dividing angle 2, and the other joints, including the joint between the first connecting section 302 and the body 1, the joint between the first connecting section 302 and the second connecting section 303, and the joint between the second connecting section 303 and the backwater section 301 are all smooth, so that on one hand, the appearance of the outer cylinder 7 is attractive, and on the other hand, the speed of the water flow in the inner part is not greatly lost when the movement direction is changed, and the local circulation of the water flow at the circulation cavity 3 is not affected, thereby ensuring the flushing and dewatering efficiency of the water flow to the bottom of the outer cylinder 7.

The utility model also provides a drum washing machine, which comprises an inner drum 8 and an outer drum 7 nested outside the inner drum 8, wherein the outer drum 7 is adopted by the outer drum.

Preferably, the inner cylinder 8 and the outer cylinder 7 are coaxially nested, so that gaps between the body 1 of the outer cylinder 7 and the inner cylinder 8 are uniformly distributed, the distance between the first connecting section 302 of the circulation cavity 3 and the inner cylinder 8 is gradually increased, and then the outer cylinder 7 is closed through the second connecting section 303 and the water return section 301.

Fig. 3 is a schematic view of water circulation between the outer tub 7 and the inner tub 8 in the washing stage, and the arrow direction in fig. 3 is the inner tub rotation direction and the water flow direction. As shown in fig. 3, when the inner tub 8 rotates clockwise in the washing stage, the water flow at the bottom is divided into two circulating water flows at the dividing angle 2, which are respectively an upper circulating water flow and a lower circulating water flow.

In the upper circulating water flow, the water flow sequentially passes through the left gap 4, the upper gap 5 and the right gap 6 from the dividing angle 2 due to the centrifugal force, and then returns to the dividing angle 2 again for the next circulation.

In the lower circulating water flow, due to the blocking of the dividing angle 2, the water flow moves along the inner wall of the water return section 301 and the inner wall of the second connecting section 303, but at the bottom of the outer cylinder 7, the part of the counterclockwise water flow collides with the water flow moving clockwise due to the rotation of the inner cylinder 8, and then the water flow is brought to the dividing angle 2 again by the rest of the clockwise water flow, so that the next upper circulation or lower circulation is performed.

In this process, the bottom of the outer tub 7 is continuously washed by the lower circulating water flow, so that dirt cannot adhere to the bottom of the outer tub 7, thereby achieving the effect of cleaning the bottom of the outer tub 7.

When the rotation direction of the inner cylinder 8 is changed in the washing stage, the circulation direction of the water flow between the inner cylinder 8 and the outer cylinder 7 is changed to anticlockwise rotation due to the action of centrifugal force, the water flow sequentially passes through the right gap 6, the upper gap 5 and the left gap 4, and then passes through the right gap 6 again to perform the next circulation, and at this time, the action of the dividing angle 2 can be ignored.

Fig. 4 is a schematic view of water circulation between the outer tub 7 and the inner tub 8 in the dehydration stage, and the arrow direction in fig. 4 is the rotation direction and the water flow direction of the inner tub 8. As shown in fig. 4, the inner cylinder 8 rotates clockwise during the dehydration stage, because the outer cylinder 7 empties the washing water during the dehydration stage, when the inner cylinder 8 rotates at a high speed, the water flow at the right gap 6 moves along the inner wall of the first connecting section 302 of the circulation cavity 3 due to the centrifugal force, and at this time, a part of the water thrown out by the inner cylinder 8 is discharged from the water outlet at the bottom of the circulation cavity 3 after passing through the right gap 6 and the first connecting section 302; part of water flows move along the inner walls of the second connecting section 303 and the water return section 301 after passing through the right gap 6 and the first connecting section 302 due to the inertia effect, then falls to the bottom of the circulating cavity 3, and is discharged from a water outlet arranged at the bottom of the circulating cavity 3; there is also a part of the water flow which, when moving along the inside of the second connection section 303, the return water section 301, is flushed down with the water flow which moves in the clockwise direction due to the centrifugal effect and is discharged from the water outlet at the bottom of the circulation chamber 3.

In a further embodiment of the utility model, when the inner drum 8 rotates anticlockwise during the dehydration stage, the dividing angle 2 and the return water section 301 are arranged on the right side of the body 1, i.e. the circulation chamber 3 in this embodiment is opposite to the circulation chamber 3 in the above embodiment.

When the inner drum 8 rotates counterclockwise in the washing stage, the water flow at the bottom is divided into two circulating water flows at the dividing angle 2, which are respectively an upper circulating water flow and a lower circulating water flow.

In the upper circulating water flow, due to the centrifugal force, the water flow sequentially passes through the right gap 6, the upper gap 5 and the left gap 4 from the dividing angle 2, and then returns to the dividing angle 2 again for the next circulation.

In the lower circulating water flow, due to the blocking of the dividing angle 2, the water flow moves along the inner wall of the water return section 301 and the inner wall of the second connecting section 303, but at the bottom of the outer cylinder 7, the part of the clockwise water flow collides with the water flow moving in the counterclockwise direction due to the rotation of the inner cylinder 8, and then the water flow is brought to the dividing angle 2 again by the rest of the counterclockwise water flow, so that the next upper circulation or lower circulation is performed.

When the rotation direction of the inner cylinder 8 is changed in the washing stage, the circulation direction of the water flow between the inner cylinder 8 and the outer cylinder 7 is changed to clockwise rotation due to the action of centrifugal force, the water flow sequentially passes through the left gap 4, the upper gap 5 and the right gap 6, and then passes through the left gap 4 again to perform the next circulation, and at this time, the action of the dividing angle 2 can be ignored.

The inner cylinder 8 rotates anticlockwise during the dehydration stage, because the outer cylinder 7 empties washing water during the dehydration stage, when the inner cylinder 8 rotates at a high speed, water flow at the left gap 4 moves along the inner wall of the first connecting section 302 of the circulation cavity 3 due to the centrifugal force, and at the moment, part of water thrown out by the inner cylinder 8 is discharged from a water outlet at the bottom of the circulation cavity 3 after passing through the left gap 4 and the first connecting section 302; part of water flows move along the inner walls of the second connecting section 303 and the water return section 301 after passing through the left gap 4 and the first connecting section 302 due to the inertia effect, then falls to the bottom of the circulating cavity 3, and is discharged from a water outlet arranged at the bottom of the circulating cavity 3; there is also a part of the water flow which, when moving along the inside of the second connection section 303, the return water section 301, is flushed down with the water flow moving in the counter-clockwise direction due to the centrifugal effect and is discharged from the water outlet at the bottom of the circulation chamber 3.

In the dehydration stage of the drum washing machine, the rotational speed of the inner drum 8 is higher, the centrifugal effect of water flow is larger, washing water between the outer drum 7 and the inner drum 8 is emptied, and the water flow can be closely clung to the body 1 of the outer drum 7 and the inner wall of the first connecting section 302, so that the water flow is discharged from the water outlet at the bottom of the circulation cavity 3 or is partially circulated once or more times in the circulation cavity 3 and then is discharged from the water outlet, the dehydration efficiency is improved, and the time consumed by repeated circulation of the water flow between the inner drum 8 and the body 1 for a plurality of times due to the action of the centrifugal force is reduced.

The foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited to the above-mentioned embodiment, but is not limited to the above-mentioned embodiment, and any simple modification, equivalent change and modification made by the technical matter of the present utility model can be further combined or replaced by equivalent embodiments within the scope of the technical proposal of the present utility model without departing from the scope of the technical proposal of the present utility model.

Claims

1. The outer barrel is characterized by comprising a body, a dividing angle, a circulating cavity arranged at the bottom of the body and a water outlet arranged at the bottom of the circulating cavity, wherein the dividing angle is arranged at the joint of the circulating cavity and any side of the body, and a water return section of the circulating cavity is connected with the body through the dividing angle;

2. The outer barrel of claim 1, wherein the return water section is of arcuate configuration.

3. An outer cylinder according to claim 2, wherein the central angle of the return water section is less than or equal to 90 °.

4. The outer cylinder according to claim 1, wherein the circulation chamber further comprises a first connecting section and a second connecting section, the first connecting section being connected to the body, the second connecting section being disposed between the first connecting section and the return section;

5. The outer cylinder as set forth in claim 4, wherein the second connecting section and the return section have equal radii.

6. An outer cylinder according to claim 5, wherein the tangential direction of the junction of the second connecting section and the return section is the same.

7. The outer cylinder as claimed in claim 4, wherein the distance between the first connecting section and the center of the outer cylinder increases gradually from the connection between the first connecting section and the body to the connection between the first connecting section and the second connecting section.

8. An outer barrel according to claim 7, wherein the first connecting section extends tangentially to the junction of the body and the first connecting section.

9. An outer barrel according to any one of claims 1 to 8 wherein the circulation chamber has a depth greater than or equal to 1/2 of the depth of the body and less than or equal to the depth of the body.

10. A drum washing machine comprising an inner drum and an outer drum nested outside the inner drum, wherein the outer drum is as claimed in any one of claims 1 to 9.