CN111850921A - Washing machine - Google Patents

Abstract

The invention discloses a washing machine, which comprises a washing barrel, wherein a wave wheel is installed in the washing barrel, the washing barrel is provided with at least two chambers, the washing barrel comprises a first chamber for washing fabrics and a second chamber which is isolated from the first chamber and is free of water, and washing water in the first chamber cannot enter the second chamber; at least a lower surface of the pulsator is positioned within the second chamber such that the lower surface of the pulsator cannot contact the washing water in the first chamber. The washing machine is provided with a chamber isolated from the washing water in the washing barrel, so that the lower surface of the impeller is not contacted with the washing water above the impeller in the washing process. Because the lower surface of the impeller is not contacted with water during washing, the lower surface of the impeller and the bottom wall of the washing barrel below the impeller can be prevented from generating dirt and bacteria, the washing barrel can be kept clean, and secondary pollution of clothes is avoided.

Description

Washing machine

Technical Field

The invention belongs to the field of washing equipment, and particularly relates to a washing machine.

Background

Currently, people have higher and higher requirements on washing machines, and people pay attention not only to the cleanliness of clothes but also to whether the clothes are cleaned in the machine. The lower surface of the impeller of the existing impeller washing machine is provided with a plurality of circular ring ribs and a plurality of transverse ribs along the radial direction of a base body. Because a plurality of annular ribs and transverse ribs protrude out of the lower surface of the base body, and the number of intersection points formed by the annular ribs and the transverse ribs is large, and a plurality of small squares are formed by division. The impeller is provided with a plurality of water leakage holes on the surface, after the impeller is used for a long time, dirt and bacteria can be attached to small squares at the bottom of the impeller and cannot be cleaned, and secondary pollution is caused to clothes of a user.

Chinese patent with application number CN201520784031.0 discloses a cleaning impeller on an impeller type washing machine, wherein a impeller cover is fastened on the reverse side of the impeller, the impeller cover is integrated with the reverse side of the impeller through ultrasonic welding, and the outer surface of the front side of the impeller is provided with water leakage holes. The gap between the impeller covers is arranged at the inner edge of the impeller. The rough parts such as a plurality of reinforcing ribs, ejector rods and the like on the back of the impeller cover are covered and sealed by the impeller cover.

However, although the above structure covers the space enclosed by various ribs on the lower surface of the pulsator, the pulsator cover is still below the pulsator and the gap between the pulsator and the bottom of the washing tub is limited, so that the washing water enters the area, the water volume is small, the thread scraps are easily not discharged, the washing water cannot effectively clean the pulsator cover, and the washing water still generates dirt and bacteria after long-term use, thereby causing secondary pollution to the clothes of users.

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

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a washing machine, wherein the lower surface of a wave wheel is not contacted with washing water above the wave wheel in the washing process.

In order to solve the technical problems, the invention adopts the technical scheme that: a washing machine comprising a washing tub having a pulsator installed therein, the washing tub having at least two chambers, wherein,

A first chamber for washing fabric;

a second chamber isolated from the first chamber;

at least the lower surface of the impeller is positioned in the second chamber.

The washing machine comprises a first cavity, a second cavity and a washing barrel, wherein the first cavity is formed by a space defined by the lower surface of the impeller and the inner wall of the washing barrel corresponding to the lower part of the impeller in a matched mode, or the space defined by the lower surface of the impeller and the inner wall of the washing barrel corresponding to the lower part of the impeller in a matched mode is located in the second cavity.

The impeller is provided with an upper water isolation structure and a lower water isolation structure, the impeller and the inner wall of the washing barrel are directly or indirectly matched and sealed to divide the space inside the washing barrel into an upper chamber and a lower chamber, the chamber above the impeller is the first chamber, and the chamber below the impeller is the second chamber.

Furthermore, the washing barrel is provided with a groove for mounting the impeller, the impeller is rotatably mounted in the groove, and an annular sealing structure is arranged between the outer edge of the impeller and the peripheral wall of the groove.

Preferably, the annular sealing structure is an annular sealing ring or a water sealing structure.

Or, the alternative is that the washing machine includes a mounting seat, the mounting seat has an opening, the impeller is rotatably disposed in the opening, a dynamic seal structure is provided between the outer edge of the impeller and the opening, and the mounting seat is connected with the inner wall of the washing tub in a sealing manner.

Or, a water-stop component is arranged in the washing barrel and is arranged above the impeller, the impeller rotates to drive the water-stop component to move up and down to turn over the washing fabric, the water-stop component divides the space in the washing barrel into an upper chamber and a lower chamber, the chamber above the water-stop component is the first chamber, and the chamber below the water-stop component is the second chamber.

Furthermore, the washing barrel is provided with a groove for installing the impeller, the impeller is rotatably installed in the groove, the water-resisting component is of a soft membrane structure and covers the groove, and the periphery of the water-resisting component is hermetically connected with the inner wall of the washing barrel at the periphery of the groove.

Furthermore, an auxiliary structure protruding from the surface is arranged on the surface of the water-stop component corresponding to one side surface of the first chamber, and is used for kneading the washing fabrics and/or stirring the water flow.

Further, the washing machine further comprises an outer barrel, the outer barrel is a water containing barrel, the washing barrel is rotatably arranged in the outer barrel and located below the impeller, the bottom wall of the partial washing barrel of the side wall of the second chamber is a sealing structure, and the second chamber is a closed chamber.

Furthermore, the washing machine further comprises a water receiving tank, at least part of the water receiving tank is located below the washing barrel, the washing barrel is a water containing barrel, and the first chamber is used for containing washing water.

Preferably, the washing tub has a drain passage for draining the washing water in the first chamber from outside the second chamber or through the second chamber to the water receiving tub.

The washing machine of the invention can be a common washing machine, comprising an outer barrel, namely, water is arranged between the washing barrel and the outer barrel; the washing machine can also be a waterless washing machine between barrels, namely, the washing barrel and the outer barrel are waterless, the washing barrel is a water containing barrel, water enters the washing barrel directly, water is thrown from a water outlet structure at the upper part of the washing barrel by utilizing centrifugal force and is discharged to the outer barrel, and the outer barrel only plays a role in receiving water; the washing machine may have outer tub of water receiving tank structure with opening not higher than half of the height of the washing tub and water receiving tank for collecting water from the washing tub to guide downwards.

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

The washing machine of the invention is provided with a chamber isolated from the washing water in the washing barrel, so that the lower surface of the impeller is not contacted with the washing water above the impeller in the washing process. The washing machine has the advantages that the rotary sealing structure is arranged between the periphery of the impeller and the inner wall of the washing barrel, or the water-stop component is arranged above the impeller, so that the inner space of the washing barrel is divided into an upper water-stop chamber and a lower water-stop chamber, the structure is simple, and the installation is convenient; because the lower surface of the impeller is not contacted with water during washing, the lower surface of the impeller and the bottom wall of the washing barrel below the impeller can be prevented from generating dirt and bacteria, the washing barrel can be kept clean, and secondary pollution of clothes is avoided.

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 second chamber of the washing machine according to the present invention;

FIG. 2 is another schematic structural view of the second chamber of the washing machine of the present invention;

FIG. 3 is a schematic view of another structure of the second chamber of the washing machine according to the present invention;

fig. 4 to 6 are schematic views illustrating different draining manners of the first chamber of the washing machine according to the present invention.

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; 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 6, the washing machine of the present invention comprises a washing tub 1, wherein a pulsator 2 is installed in the washing tub 1, the washing tub 1 has at least two chambers, wherein the washing machine comprises a first chamber 11 for washing fabric, and a second chamber 12 isolated from the first chamber 11 and having no water, and the washing water in the first chamber 11 cannot enter the second chamber 12; at least the lower surface of the pulsator 2 is positioned within the second chamber 12 such that the lower surface of the pulsator 2 cannot contact the washing water in the first chamber 11.

Further, the space of the washing tub below the pulsator 2 is not in contact with the washing water in the first chamber 11, that is, the space defined by the lower surface of the pulsator 2 and the inner wall of the washing tub 1 corresponding to the lower part of the pulsator 2 in a matched manner forms the second chamber 12, or the space defined by the lower surface of the pulsator 2 and the inner wall of the washing tub 1 corresponding to the lower part of the pulsator 2 in a matched manner is located in the second chamber 12.

The washing machine is provided with a chamber isolated from the washing water in the washing barrel, so that the lower surface of the impeller is not contacted with the washing water above the impeller in the washing process. Because the lower surface of the impeller is not contacted with water during washing, the lower surface of the impeller and the bottom wall of the washing barrel below the impeller can be prevented from generating dirt and bacteria, the washing barrel can be kept clean, and secondary pollution of clothes is avoided.

Example one

As shown in fig. 1, in this embodiment, a water-blocking member 3 is provided in the washing tub 1, and covers the washing tub 2, and has a periphery connected to the inner wall of the washing tub 1 in a sealing manner, the rotation of the washing tub 2 can drive the water-blocking member 3 to flip the fabric to be washed up and down, the water-blocking member 3 divides the space inside the washing tub 1 into an upper chamber and a lower chamber, the chamber located above the water-blocking member 3 is the first chamber 11, the chamber located below the water-blocking member 3 is the second chamber 12, and the whole washing tub 2 is located in the second chamber 12.

Specifically, the washing barrel bottom 13 is provided with a groove 14 for installing the impeller 2, the impeller 2 is rotatably installed in the groove 14, the water-resisting component 3 is of a soft membrane structure and covers the groove 14, and the periphery of the water-resisting component is connected with the inner wall of the washing barrel at the periphery of the groove 14 in a sealing manner. The soft film structure has the characteristics of water resistance, wear resistance and certain extensibility, and when the impeller rotates, the stirring blades on the impeller stir the soft film to change the fluctuation of the soft film so as to change the turning track of the fabric and the water flow in the first chamber.

Since the water stop member 3 can be in contact with the fabric and the washing water, in order to enhance the washing effect, an auxiliary structure (not shown) protruding from the surface is provided on the surface of the water stop member 3 corresponding to the first chamber 11 for kneading the fabric to be washed and/or agitating the water flow.

Example two

As shown in fig. 2 and fig. 3, unlike the above embodiments, in this embodiment, the impeller 2 itself is used as a water-stop component for separating the first chamber from the second chamber, the impeller 2 has an upper and lower water-stop structure, that is, the impeller is not provided with an upper and lower water-permeable structure, and is directly or indirectly matched and sealed with the inner wall of the washing tub 1 to separate the space inside the washing tub 1 into an upper chamber and a lower chamber, the chamber above the impeller 2 is the first chamber 11, and the chamber below the impeller 2 is the second chamber 12.

As shown in fig. 2, a groove 14 for mounting the pulsator 2 is provided in the bottom 13 of the washing tub 1, the pulsator 2 is rotatably mounted in the groove 14, and an annular sealing structure 4 is provided between the outer edge of the pulsator 2 and the peripheral wall of the groove 14. Preferably, the annular sealing structure 4 is an annular sealing ring or a water sealing structure.

Or, as shown in fig. 3, the pulsator 2 is rotatably and hermetically connected to the mounting base 5, then the assembly formed by the mounting base 5 and the pulsator 2 is mounted in the washing tub 1, the pulsator 2 is located in the groove 14 of the tub bottom 13, and the mounting base 5 is hermetically connected to the inner wall of the washing tub 1 at the periphery of the groove 14. The mounting seat 5 is provided with an opening 51, the impeller 2 is rotatably arranged in the opening 51, and a dynamic sealing structure is arranged between the outer edge of the impeller 2 and the opening 51.

EXAMPLE III

As shown in fig. 1 to 3, the washing machine of the present embodiment is a general pulsator washing machine, and includes an outer tub 6, the outer tub 6 is a water tub, the washing water flows between the outer tub 6 and the washing tub 1, the washing tub 1 is rotatably disposed in the outer tub 6, the water is filled between the washing tub 1 and the outer tub 6, for this structure, the second chamber 12 must be designed as a closed chamber, and a part of a bottom wall 13 of the washing tub, which is located below the pulsator 2 and constitutes a side wall of the second chamber 12, is a sealing structure.

In order to obtain better cleaning effect, a washing machine is usually provided with a self-cleaning program to clean dirt on the outer wall of the washing tub and the inner wall of the outer tub, or a plurality of cleaning balls (not shown in the figure) are placed in a cavity between the washing tub and the outer tub, and the cleaning balls are driven to impact and rub the outer wall of the washing tub and the inner wall of the outer tub by the rotation of water flow, so that the inter-tub cleaning is realized. The present implementation does not limit the self-cleaning structure and method.

Example four

The washing machine of this embodiment is an inter-tub waterless washing machine, that is, there is no water between the washing tub 1 and the outer tub 6 (see fig. 1 to 3), the washing tub 1 is a water tub, the water is directly introduced into the first chamber 11 of the washing tub 1, the water is thrown from the water outlet structure at the upper part of the washing tub by centrifugal force to the outer tub and is discharged, and the outer tub only plays a role of receiving water. Since there is no water in the tub, the washing machine does not limit the sealing of the bottom wall 13 of the washing tub constituting the side wall of the second chamber 12.

EXAMPLE five

As shown in fig. 4 to 6, the washing machine of the present embodiment may also be an expansion washing machine, that is, the volume of the washing tub is relatively expanded by reducing the gap between the washing tub and the cabinet, the outer tub of the washing machine is designed as a water receiving tank structure, and the opening is generally not higher than half of the height of the washing tub and is used for collecting the water drained from the washing tub and guiding the water downwards.

Specifically, the washing machine further comprises a water receiving tank 7 at least partially located below the washing tub 1, the washing tub 1 is of a water containing tub structure, and the first chamber 11 contains washing water.

Preferably, the washing tub 1 has a drain passage 8 for draining the washing water in the first chamber 11 from the outside of the second chamber 12 to the water receiving tub 7 (see fig. 4 and 5), or through the second chamber 12 to the water receiving tub 7 (see fig. 6). The existing expansion washing machine may dispose the drain passage 8 inside the washing tub 1 (see fig. 4 and 6), or may dispose the drain passage 8 outside the washing tub 1 (see fig. 5).

EXAMPLE six

In this embodiment, the washing machine adopts another water-stop component to separate the washing tub into three chambers (not shown in the figure), on the basis of the first embodiment and the second embodiment, the water-stop component is arranged below the pulsator, the second chamber is arranged between the lower water-stop component and the pulsator or between the upper water-stop component, and the third chamber is arranged below the water-stop component.

The above embodiments are only preferred embodiments of the present invention, and not intended to limit the present invention in any way, and although the present invention has been disclosed by the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make various changes and modifications to the equivalent embodiments by using the technical contents disclosed above without departing from the technical scope of the present invention, and the embodiments in the above embodiments can be further combined or replaced, but any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.

Claims (10)

1. The utility model provides a washing machine, includes the washtub, install the impeller in the washtub, its characterized in that: the washing tub has at least two chambers, wherein,

a first chamber for washing fabric;

a second chamber isolated from the first chamber;

at least the lower surface of the impeller is positioned in the second chamber.

2. The washing machine as claimed in claim 1, wherein: and the space formed by the lower surface of the impeller and the inner wall of the washing barrel corresponding to the lower part of the impeller in a matched and enclosed mode forms the second cavity or is positioned in the second cavity.

3. The washing machine as claimed in claim 1, wherein: the impeller is provided with an upper water isolation structure and a lower water isolation structure, the impeller and the inner wall of the washing barrel are directly or indirectly matched and sealed to divide the space inside the washing barrel into an upper chamber and a lower chamber, the chamber above the impeller is the first chamber, and the chamber below the impeller is the second chamber.

4. A washing machine as claimed in claim 3, wherein: the washing barrel is provided with a groove for mounting the impeller, the impeller is rotatably mounted in the groove, and an annular sealing structure is arranged between the outer edge of the impeller and the peripheral wall of the groove;

preferably, the annular sealing structure is an annular sealing ring or a water sealing structure.

5. A washing machine as claimed in claim 3, wherein: the impeller sealing device comprises a mounting seat, wherein the mounting seat is provided with an opening, the impeller is rotatably arranged in the opening, a dynamic sealing structure is arranged between the outer edge of the impeller and the opening, and the mounting seat is in sealing connection with the inner wall of the washing barrel.

6. The washing machine as claimed in claim 1, wherein: the washing machine is characterized in that a water-resisting component is arranged in the washing barrel and is arranged above the impeller, the impeller rotates to drive the water-resisting component to vertically move and turn over to wash fabrics, the water-resisting component divides the space inside the washing barrel into an upper chamber and a lower chamber, the chamber above the water-resisting component is the first chamber, and the chamber below the water-resisting component is the second chamber.

7. The washing machine as claimed in claim 6, wherein: the washing barrel is provided with a groove for installing the impeller, the impeller is rotatably installed in the groove, the water-resisting component is of a soft film structure and covers the groove, and the periphery of the water-resisting component is hermetically connected with the inner wall of the washing barrel at the periphery of the groove.

8. The washing machine as claimed in claim 6, wherein: the water-stop component is provided with an auxiliary structure which is protruded out of the surface and corresponds to one side surface of the first chamber, and the auxiliary structure is used for kneading the washed fabrics and/or stirring water flow.

9. A washing machine according to any one of claims 1 to 8, wherein: still include outer bucket, outer bucket is the water-holding bucket, the wash tub is rotationally located in the outer bucket, be located the impeller below constitutes the partial wash tub diapire of second cavity lateral wall is seal structure, the second cavity is airtight cavity.

10. A washing machine according to any one of claims 1 to 8, wherein: the washing machine further comprises a water receiving tank, at least part of the water receiving tank is positioned below the washing barrel, the washing barrel is a water containing barrel, and the first chamber is used for containing washing water;

preferably, the washing tub has a drain passage for draining the washing water in the first chamber from outside the second chamber or through the second chamber to the water receiving tub.

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