washing machine

Abstract

The present invention discloses a washing machine, comprising a washing tub, in which a pulsator is installed, and the washing tub has at least two chambers, wherein the first chamber is used to wash fabrics, and the second chamber is isolated from the first chamber and is free of water, and the washing water in the first chamber cannot enter the second chamber; at least the lower surface of the pulsator is located in the second chamber, so that the lower surface of the pulsator cannot contact the washing water in the first chamber. The washing machine of the present invention is provided with a chamber isolated from the washing water in the washing tub, so that the lower surface of the pulsator does not contact the washing water above the pulsator during the washing process. Since the lower surface of the pulsator does not contact the water during washing, it can avoid that the lower surface of the pulsator and the bottom wall of the washing tub below the pulsator will not generate dirt and bacteria, and the washing tub can be kept clean to avoid secondary contamination of clothes.

Description

Technical Field

[0001] The invention belongs to the field of washing equipment, and in particular relates to a washing machine. Background Art

[0002] At present, people have higher and higher requirements for washing machines. People not only pay attention to the cleanliness of clothes, but also pay attention to whether the machine is clean. In existing pulsator washing machines, the lower surface of the pulsator is provided with multiple circular annular ribs and multiple transverse ribs along the radial direction of the base. Since multiple annular ribs and transverse ribs protrude from the lower surface of the base, and there are many intersection points formed by the annular ribs and transverse ribs, more small squares are formed by segmentation. There are multiple leaking holes on the surface of the pulsator. After long-term use of the pulsator, dirt and bacteria will adhere to the small squares at the bottom of the pulsator, which cannot be cleaned, causing secondary pollution to the user's clothes.

[0003] The Chinese patent application number CN201520784031.0 discloses a cleaning impeller on a pulsator washing machine, wherein a impeller cover is mounted on the back of the impeller, and the impeller cover is integrally formed with the back of the impeller by ultrasonic welding, and a water leakage hole is provided on the front outer surface of the impeller. The impeller cover is mounted on the back of the impeller, and the gap between them is at the inner edge of the impeller. The rough parts such as multiple reinforcing ribs and top rods on the back of the impeller cover are covered and sealed by the impeller cover.

[0004] However, although the above structure covers the space surrounded by various ribs on the lower surface of the impeller, since the impeller cover is still below the impeller and the gap between it and the bottom of the washing tub is limited, the washing water enters this area. Due to the small amount of water, it is easy for the lint to not be discharged, and the washing water cannot effectively clean the impeller cover. Dirt and bacteria will still be generated after long-term use, causing secondary pollution to the user's clothes.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a washing machine in which the lower surface of the impeller does not contact the washing water above the impeller during the washing process.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: a washing machine includes a washing tub, a pulsator is installed in the washing tub, and the washing tub has at least two chambers, wherein:

[0008] a first chamber for washing fabrics;

[0009] a second chamber, isolated from the first chamber;

[0010] At least the lower surface of the impeller is located in the second chamber.

[0011] A further solution is that, in the washing machine of the present invention, the space enclosed by the lower surface of the impeller and the inner wall of the washing tub corresponding to below the impeller constitutes the second chamber, or the space enclosed by the lower surface of the impeller and the inner wall of the washing tub corresponding to below the impeller is located in the second chamber.

[0012] A further solution is that the impeller has upper and lower water-isolating structures, which directly or indirectly cooperate with the inner wall of the washing tub to seal and separate the space inside the washing tub into two upper and lower chambers. The chamber above the impeller is the first chamber, and the chamber below the impeller is the second chamber.

[0013] Furthermore, the washing tub is provided with a groove for installing the impeller, the impeller is rotatably installed in the groove, and an annular sealing structure is provided between the outer edge of the impeller and the peripheral wall of the groove.

[0014] Preferably, the annular sealing structure is an annular sealing ring or a water seal structure.

[0015] Alternatively, an 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 sealing structure is provided between the outer edge of the impeller and the opening, and the mounting seat is sealingly connected to the inner wall of the washing tub.

[0016] Alternatively, a further alternative scheme of the present invention is that a water-blocking component is provided in the washing tub and installed above the impeller. The rotation of the impeller drives the water-blocking component to rise and fall to flip the washed fabric. The water-blocking component divides the space inside the washing tub into two upper and lower chambers. The chamber above the water-blocking component is the first chamber, and the chamber below the water-blocking component is the second chamber.

[0017] Furthermore, the washing tub is provided with a groove for installing the impeller, the impeller is rotatably installed in the groove, the water-blocking component is a soft membrane structure, the cover is arranged above the groove, and the periphery is sealed and connected to the inner wall of the washing tub at the periphery of the groove.

[0018] Furthermore, a side surface of the water-isolating component corresponding to the first chamber is provided with an auxiliary structure protruding from the surface, which is used for rubbing the washing fabric and / or stirring the water flow.

[0019] Furthermore, the washing machine also includes an outer barrel, which is a water barrel, and the washing barrel is rotatably disposed in the outer barrel. The portion of the washing barrel bottom wall below the impeller that constitutes the side wall of the second chamber is a sealing structure, and the second chamber is a closed chamber.

[0020] Furthermore, the washing machine also includes a water receiving tank, which is at least partially located below the washing tub. The washing tub is a water storage tub, and the first chamber stores washing water.

[0021] Preferably, the washing tub has a drainage channel for discharging the washing water in the first chamber from outside the second chamber or through the second chamber to the water receiving tank.

[0022] The washing machine of the present invention can be an ordinary washing machine, including an outer barrel, that is, there is water between the washing barrel and the outer barrel; it can also be a waterless washing machine between barrels, that is, there is no water between the washing barrel and the outer barrel, the washing barrel is a water storage barrel, water directly enters the washing barrel, and the water is thrown from the water outlet structure on the upper part of the washing barrel to the outer barrel by centrifugal force and discharged, and the outer barrel only serves to receive water; it can also be an expanded washing machine, that is, by reducing the gap between the washing barrel and the box body, the volume of the washing barrel is relatively expanded, the outer barrel of the washing machine is designed as a water receiving trough structure, the opening of which is generally not higher than half the height of the washing barrel, and the water receiving trough is used to collect water discharged downward from the washing barrel.

[0023] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0024] The washing machine of the present invention is provided with a chamber isolated from washing water in the washing tub, so that the lower surface of the impeller does not contact the washing water above the impeller during the washing process. The washing machine of the present invention is provided with a rotating sealing structure between the periphery of the impeller and the inner wall of the washing tub or a water-isolating component is provided above the impeller so that the internal space of the washing tub is divided into two upper and lower water-isolating chambers, and has a simple structure and is easy to install; because the lower surface of the impeller does not contact water during washing, it can prevent the lower surface of the impeller and the bottom wall of the washing tub below the impeller from generating dirt and bacteria, and can keep the washing tub clean and avoid secondary contamination of clothes.

[0025] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0027] Figure 1 This is a structural schematic diagram of the second chamber of the washing machine of the present invention;

[0028] Figure 2 is another structural schematic diagram of the second chamber of the washing machine of the present invention;

[0029] Figure 3 is another structural schematic diagram of the second chamber of the washing machine of the present invention;

[0030] Figures 4 to 6 It is a schematic diagram of different drainage modes of the first chamber of the washing machine of the present invention.

[0031] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0032] In order to make the purpose, 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 in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0033] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] like Figures 1 to 6 As shown, the washing machine of the present invention comprises a washing tub 1, in which a pulsator 2 is installed, and the washing tub 1 has at least two chambers, including a first chamber 11 for washing fabrics, and a second chamber 12 isolated from the first chamber 11 and free of water, wherein the washing water in the first chamber 11 cannot enter the second chamber 12; at least the lower surface of the pulsator 2 is located in the second chamber 12, so that the lower surface of the pulsator 2 cannot contact the washing water in the first chamber 11.

[0036] Furthermore, the washing tub space below the impeller 2 of the present invention does not contact the washing water in the first chamber 11, that is, the space enclosed by the lower surface of the impeller 2 and the inner wall of the washing tub 1 corresponding to below the impeller 2 constitutes the second chamber 12, or the space enclosed by the lower surface of the impeller 2 and the inner wall of the washing tub 1 corresponding to below the impeller 2 is located in the second chamber 12.

[0037] The washing machine of the present invention is provided with a chamber isolated from washing water in the washing tub, so that the lower surface of the impeller does not contact the washing water above the impeller during washing. Since the lower surface of the impeller does not contact water during washing, dirt and bacteria can be prevented from being generated on the lower surface of the impeller and the bottom wall of the washing tub below the impeller, the washing tub can be kept clean, and secondary contamination of clothes can be avoided.

[0038] Embodiment 1

[0039] like Figure 1 As shown, in this embodiment, a water-blocking component 3 is provided in the washing tub 1, and the cover is arranged above the impeller 2, and the periphery is sealed and connected to the inner wall of the washing tub 1. The rotation of the impeller 2 can drive the water-blocking component 3 to rise and fall and flip the washed fabric. The water-blocking component 3 divides the space inside the washing tub 1 into two upper and lower chambers. The chamber located above the water-blocking component 3 is the first chamber 11, and the chamber located below the water-blocking component 3 is the second chamber 12. The impeller 2 is located in the second chamber 12 as a whole.

[0040] Specifically, the bottom 13 of the washing tub is provided with a groove 14 for installing the impeller 2, and the impeller 2 is rotatably installed in the groove 14. The water-blocking component 3 is a soft membrane structure, which is covered above the groove 14, and the periphery is sealed and connected to the inner wall of the washing tub outside the groove 14. The soft membrane structure has the characteristics of water-blocking, wear resistance and certain extensibility. When the impeller rotates, the stirring blades on the impeller move the soft membrane up and down to change the fabric and water flow flipping trajectory in the first chamber.

[0041] Since the water-isolating component 3 can contact the fabric and the washing water, in order to enhance the washing effect, an auxiliary structure (not shown in the figure) protruding from the surface is provided on one side surface of the water-isolating component 3 corresponding to the first chamber 11, which is used to rub the washing fabric and / or stir the water flow.

[0042] Embodiment 2

[0043] like Figure 2 and Figure 3As shown, different from the above-mentioned embodiment, in this embodiment, the impeller 2 itself is used as a water-proof component separating the first chamber and the second chamber, and the impeller 2 has an upper and lower water-proof structure, that is, the impeller is not provided with an upper and lower water-permeable structure, and directly or indirectly cooperates with the inner wall of the washing tub 1 to seal and separate the space inside the washing tub 1 into two upper and lower chambers. The chamber located above the impeller 2 is the first chamber 11, and the chamber located below the impeller 2 is the second chamber 12.

[0044] like Figure 2 As shown, a groove 14 for mounting the impeller 2 is provided at the bottom 13 of the washing tub 1, and the impeller 2 is rotatably mounted in the groove 14. An annular sealing structure 4 is provided between the outer edge of the impeller 2 and the peripheral wall of the groove 14. Preferably, the annular sealing structure 4 is an annular sealing ring or a water seal structure.

[0045] Or, if Figure 3 As shown, the impeller 2 is first rotatably sealed to the mounting seat 5, and then the assembly consisting of the mounting seat 5 and the impeller 2 is installed together in the washing tub 1, the impeller 2 is located in the groove 14 of the tub bottom 13, and the mounting seat 5 is sealed to the inner wall of the washing tub 1 at the periphery of the groove 14. The mounting seat 5 has an opening 51, the impeller 2 is rotatably disposed in the opening 51, and a dynamic sealing structure is provided between the outer edge of the impeller 2 and the opening 51.

[0046] Embodiment 3

[0047] like Figures 1 to 3 As shown, the washing machine described in this embodiment is an ordinary pulsator washing machine, including an outer barrel 6, wherein the outer barrel 6 is a water holding barrel, and washing water flows between the outer barrel 6 and the washing barrel 1. The washing barrel 1 is rotatably arranged in the outer barrel 6, and there is water between the washing barrel 1 and the outer barrel 6. For this structure, the second chamber 12 must be designed as a closed chamber, and the part of the washing barrel bottom wall 13 located below the pulsator 2 and constituting the side wall of the second chamber 12 is a sealing structure.

[0048] In order to achieve a better cleaning effect, a washing machine is usually provided with a self-cleaning program to clean the 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 the chamber between the washing tub and the outer tub, and the cleaning balls are driven by the rotation of the water flow to hit and rub the outer wall of the washing tub and the inner wall of the outer tub, thereby achieving inter-tub cleaning. This embodiment does not limit the self-cleaning structure and method.

[0049] Embodiment 4

[0050] The washing machine described in this embodiment is a waterless washing machine between barrels, that is, there is no water between the washing barrel 1 and the outer barrel 6 (see Figures 1 to 3), the washing tub 1 is a water storage tub, water is directly fed into the first chamber 11 in the washing tub 1, and water is thrown out of the water outlet structure at the top of the washing tub to the outer tub by centrifugal force, and the outer tub only serves to receive water. Since there is no water between the tubs, the washing machine does not limit the sealing of the part of the washing tub bottom wall 13 constituting the side wall of the second chamber 12.

[0051] Embodiment 5

[0052] like Figures 4 to 6 As shown, the washing machine described in this embodiment can also be an expandable washing machine, that is, by reducing the gap between the washing tub and the housing, the volume of the washing tub is relatively expanded. The outer barrel of the washing machine is designed as a water trough structure, and the opening is generally not higher than half the height of the washing tub, which is used to collect water discharged downward from the washing tub.

[0053] Specifically, the washing machine further comprises a water receiving tank 7, which is at least partially located below the washing tub 1. The washing tub 1 is a water holding tub structure, and the first chamber 11 holds washing water.

[0054] Preferably, the washing tub 1 has a drainage channel 8 for discharging the washing water in the first chamber 11 from the outside of the second chamber 12 to the water receiving tank 7 (see Figure 4 and Figure 5 ), or discharged through the second chamber 12 to the water receiving tank 7 (see Figure 6 The existing expanded capacity washing machine can set the drainage channel 8 inside the washing tub 1 (see Figure 4 and Figure 6 ), the drainage channel 8 can also be arranged outside the washing tub 1 (see Figure 5 ).

[0055] Embodiment 6

[0056] In the present embodiment, the washing machine uses another water-isolating component to separate the washing tub into three chambers (not shown in the figure). On the basis of the above-mentioned embodiments one and two, a water-isolating component is arranged below the impeller. The second chamber is between the lower water-isolating component and the impeller or between the upper water-isolating component, and the third chamber is below the water-isolating component. For ordinary washing machines, the bottom wall of the washing tub below the lower water-isolating component in the present embodiment does not require additional sealing. The reinforcing ribs on the lower surface of the impeller can be used to drive the lower water-isolating component to rise and fall, thereby enhancing the agitation of the water flow at the bottom of the washing tub. Not only can the washing tub be cleaned, but also the water flow intensity can be enhanced to improve the washing effect.

[0057] The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation scheme in the above embodiment can also be further combined or replaced. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the solution of the present invention.

Claims

1. A washing machine, comprising a washing tub, wherein a pulsator is installed in the washing tub, characterized in that: The washing tub has at least two chambers, and a water-isolating component is provided in the washing tub and installed above the pulsator, and the periphery of the water-isolating component is sealed and connected to the inner wall of the washing tub; The water-isolating component divides the space inside the washing tub into two upper and lower chambers, and the chamber located above the water-isolating component is a first chamber, which is used for washing fabrics; The chamber located below the water-blocking component is a second chamber isolated from the first chamber; The water-isolating component is a soft membrane structure. When the impeller rotates, the stirring blades on the impeller can stir the soft membrane to fluctuate and flip the washed fabric.

2. The washing machine according to claim 1, characterized in that: The washing tub is provided with a groove for installing the impeller, and the impeller is rotatably installed in the groove. The water-blocking component cover is arranged above the groove, and the periphery is sealed and connected to the inner wall of the washing tub at the periphery of the groove.

3. The washing machine according to claim 1, characterized in that: The side surface of the water-isolating component corresponding to the first chamber is provided with an auxiliary structure protruding from the surface, which is used for rubbing the washing fabric and / or stirring the water flow.

4. The washing machine according to any one of claims 1 to 3, characterized in that: It also includes an outer barrel, which is a water barrel. The washing barrel is rotatably arranged in the outer barrel. The bottom wall of the washing barrel below the pulsator that constitutes the side wall of the second chamber is a sealing structure, and the second chamber is a closed chamber.

5. The washing machine according to any one of claims 1 to 3, characterized in that: It also includes a water receiving tank, which is at least partially located below the washing tub. The washing tub is a water storage tub, and the first chamber stores washing water.

6. The washing machine according to claim 5, characterized in that: The washing tub has a drainage channel for discharging the washing water in the first chamber from outside the second chamber or through the second chamber to the water receiving tank.

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