Outer tub of a washing machine and washing machine

Abstract

This application provides an outer drum of a washing machine, comprising: a drum body including a connected end cap and a drum peripheral wall, the end cap and the drum peripheral wall together forming a receiving space for installing a rotatable inner drum; a drainage groove is recessed on the side of the drum peripheral wall near the ground, the drainage groove including a groove opening and a groove bottom, the groove bottom having a through-hole; the drum peripheral wall includes a first end and a second end surrounding the periphery of the groove opening and sequentially distributed along the rotation direction of the inner drum; and a water-blocking rib extending from the second end toward the inner drum and spaced apart from the inner drum. The outer drum of the washing machine provided in this application, because a water-blocking rib is provided at the second end downstream along the rotation direction of the inner drum on the periphery of the drainage groove, some water rings or foam adhering to the outer wall of the inner drum are scraped off by the water-blocking rib during the rotation of the inner drum and flow into the drainage groove under gravity, preventing the inner drum from dehydrating with water.

Description

Technical Field

[0001] This application belongs to the field of washing machine technology, and particularly relates to an outer drum of a washing machine and the washing machine itself. Background Technology

[0002] Existing front-loading washing machines typically consist of an outer drum and a rotating inner drum housed within it. The bottom of the outer drum usually has a drain channel to drain the water inside. However, as the inner drum rotates, water rings or foam between the outer and inner drums tend to adhere to the outer wall of the inner drum, making it difficult to drain through the drain channel. This requires multiple rinses with clean water, wasting water and negatively impacting the user experience. Utility Model Content

[0003] This application provides an outer drum and a washing machine to solve the problem that the inner drum of existing drum washing machines is prone to water-laden spin-drying.

[0004] This application provides an outer drum for a washing machine, including:

[0005] The drum body includes a connected end cap and a drum peripheral wall. The end cap is opposite to the door of the washing machine. The end cap and the drum peripheral wall together form a receiving space for installing a rotatable inner drum. A drainage groove is recessed on the side of the drum peripheral wall near the ground. The drainage groove includes a groove opening and a groove bottom. A drainage hole is provided through the groove bottom. The drum peripheral wall includes a first end and a second end that surround the groove opening and are sequentially distributed along the rotation direction of the inner drum.

[0006] A water-blocking rib extends from the second end toward the inner cylinder and is spaced apart from the inner cylinder.

[0007] Optionally, the water-blocking rib gradually approaches the first end from the second end toward one side of the inner cylinder.

[0008] Optionally, it also includes water guide ribs that extend from the first end to the second end and gradually approach the bottom of the tank.

[0009] Optionally, the intersection of the extension line of the arc where the water guide rib is located and the bottom of the trough falls within the drain hole or on the side of the drain hole facing the water-blocking rib.

[0010] Optionally, the orthographic projection of the water-blocking rib on the bottom of the trough covers the intersection point.

[0011] Optionally, a speed reduction belt is provided on the side of the water guide rib facing the inner cylinder, and the speed reduction belt is used to reduce the flow rate of the water.

[0012] Optionally, the speed bump includes a plurality of spaced-apart recesses and / or protrusions.

[0013] Optionally, the water-blocking rib is integrally formed with the cylinder body.

[0014] Optionally, it also includes a flexible sleeve that at least covers the end of the water-retaining rib away from the second end.

[0015] This application also provides a washing machine, including the outer drum of the washing machine as described above.

[0016] The washing machine provided in this embodiment has an outer drum in which water between the outer drum and the inner drum is discharged from the outer drum through the drain hole of the drain trough due to gravity and the stirring effect of the inner drum rotating. At the same time, since the second end of the drain trough located downstream along the rotation direction of the inner drum is provided with a water-blocking rib, some water rings or foam attached to the outer wall of the inner drum, even if they do not automatically flow into the drain trough, will be scraped off by the water-blocking rib during the rotation of the inner drum and flow into the drain trough along the water-blocking rib due to gravity. This prevents the inner drum from being dehydrated with water, improves the dehydration efficiency of the inner drum and the washing efficiency, saves water resources, and enhances the user experience. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0019] Figure 1 This is a front view of the outer drum of a washing machine provided in an embodiment of this application.

[0020] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0021] Figure 3 This is an isometric view of the outer drum of a washing machine provided in an embodiment of this application.

[0022] Figure 4 This is a schematic diagram of the structure of a washing machine provided in an embodiment of this application.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Cylinder body; 11. Cylinder perimeter wall; 12. Drainage groove; 121. Drainage hole; 13. First end; 14. Second end; 2. Water-blocking rib; 3. Water-guiding rib. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0026] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0028] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0030] This application provides an outer drum and a washing machine to solve the problem that the inner drum of existing drum washing machines is prone to water-laden spin-drying. The following description is in conjunction with the accompanying drawings.

[0031] The washing machine outer drum provided in this embodiment includes a drum body 1 and a water-retaining rib 2. Please refer to... Figure 1 and Figure 3 The drum body 1 includes a connected end cap and a drum peripheral wall 11. The end cap is opposite to the door of the washing machine. The end cap and the drum peripheral wall 11 together form a receiving space for installing a rotatable inner drum (not shown in the figure). A drainage groove 12 is recessed on the side of the drum peripheral wall 11 near the ground. The drainage groove 12 includes a groove opening and a groove bottom. A drainage hole 121 is provided through the groove bottom. The drum peripheral wall 11 includes a first end 13 and a second end 14 that surround the groove opening and are distributed sequentially along the rotation direction of the inner drum. A water-blocking rib 2 extends from the second end 14 toward the inner drum and is spaced apart from the inner drum.

[0032] The washing machine provided in this embodiment discharges water between the outer drum and the inner drum through the drain hole 121 of the drain trough 12 under the action of gravity and the stirring action of the inner drum during rotation. At the same time, since the second end 14 of the drain trough 12 located downstream along the rotation direction of the inner drum is provided with a water-blocking rib 2, some water rings or foams attached to the outer wall of the inner drum, even if they do not automatically flow into the drain trough 12, will be scraped off by the water-blocking rib 2 during the rotation of the inner drum and flow into the drain trough 12 under the action of gravity. This prevents the inner drum from being dehydrated with water, improves the dehydration efficiency and cleaning efficiency of the inner drum, saves water resources, and enhances the user experience.

[0033] The direction of rotation of the inner cylinder is not further specified here; in some examples it can be clockwise, and in others it can be counterclockwise.

[0034] Optionally, the water-blocking rib 2 gradually approaches the first end 13 from the second end 14 towards one side of the inner cylinder. That is, the water-blocking rib 2 extends above the drainage trough 12. When water in the outer cylinder enters the drainage trough 12, if the speed is fast, it may cause agitation and splash onto the inner cylinder. At this time, the water-blocking rib 2 extending above can block some of the splashed water back into the drainage trough 12, further reducing the probability of the inner cylinder carrying water and dehydrating.

[0035] Furthermore, the water-blocking rib 2 can be arched and protrude towards the bottom of the drainage channel 12, thereby guiding the blocked water flow into the drainage channel 12.

[0036] Optionally, please refer to Figure 2 The outer drum of the washing machine provided in this embodiment of the application also includes a water guide rib 3, which extends from the first end 13 to the second end 14 and gradually approaches the bottom of the tub. By setting the water guide rib 3, the water entering the drain trough 12 is further guided, which not only ensures the size of the drain trough 12, but also further restricts the landing point of the water in the drain trough 12.

[0037] Optionally, the water guide rib 3 is arched and arches towards the bottom of the trough.

[0038] Optionally, the intersection of the extension line of the arc where the water guide rib 3 is located and the bottom of the trough falls within the drain hole 121 or on the side of the drain hole 121 facing the water-blocking rib 2. That is, when water enters the drainage trough 12 from the water guide rib 3, it can directly enter the drain hole 121 or fall on the side of the drain hole 121 facing the water-blocking rib 2. Therefore, even if water splashes into the inner cylinder, it will be blocked by the water-blocking rib 2 above and flow back into the drainage trough 12. In other words, the cooperation of the channel water guide rib 3 and the water-blocking rib 2 further reduces the probability of water splashing back into the inner cylinder in the drainage trough 12, causing the inner cylinder to dehydrate, and improves the drainage efficiency of the outer cylinder.

[0039] Furthermore, the water guide rib 3 can be located below the extension line of the cylinder peripheral wall 11.

[0040] Optionally, the angle between the tangent at the connection between the water guide rib 3 and the first end 13 and the tangent at the connection between the first end 13 and the water guide rib 3 can be in the range of 10° to 60°, preferably 45°.

[0041] Optionally, the orthographic projection of the water-retaining rib 2 on the bottom of the trough covers the intersection point. That is, the water-retaining rib 2 basically covers the area where water falls in the drainage trough 12, so that even if water splashes, the water-retaining rib 2 can basically block all water flow.

[0042] Of course, as an alternative implementation, the water-blocking rib 2 can also gradually move away from the first end 13 from the second end 14 toward one side of the inner cylinder. In this case, the water-blocking rib 2 can both scrape off the water ring or foam on the outer periphery of the inner cylinder and guide the scraped water flow so that it flows along the water-blocking rib 2 into the drainage groove 12. Furthermore, the water-blocking rib 2 can be arched and protrude toward one side of the inner cylinder.

[0043] Optionally, a speed bump is provided on the side of the water guide rib 3 facing the inner cylinder. The speed bump is used to reduce the flow velocity of the water. By reducing the flow velocity of the water through the speed bump, the impact force of the water falling into the drainage trough 12 is reduced, thereby reducing the probability of water splashing when hitting the bottom of the drainage trough 12 and improving drainage efficiency.

[0044] Optionally, the speed bump includes a plurality of spaced-apart recesses and / or protrusions. In some examples, the speed bump includes a plurality of spaced-apart recesses; in other examples, the speed bump includes a plurality of spaced-apart protrusions; in still other examples, the speed bump includes a plurality of spaced-apart recesses and protrusions. The shape and size of the recesses and protrusions are not further limited here; for example, they can be circular, rectangular, or irregularly shaped. By providing recesses and / or protrusions, the flow direction of the flowing water is changed while simultaneously creating resistance to the flowing water, thereby reducing the flow velocity of the flowing water.

[0045] Optionally, the water-retaining rib 2 is integrally formed with the cylinder body 1. As an alternative implementation, the water-retaining rib 2 can also be separately provided from the cylinder body 1, for example, the water-retaining rib 2 can be glued, welded, inserted, or riveted to the cylinder body 1.

[0046] Optionally, the outer drum of the washing machine provided in this embodiment also includes a flexible sleeve, which at least covers the end of the water-blocking rib 2 away from the second end 14. Furthermore, the flexible sleeve covers the entire water-blocking rib 2. By providing the flexible sleeve, damage to the water-blocking rib 2 from scratching with the inner drum is avoided. At the same time, the surface of the flexible sleeve is typically rough, which can further improve the efficiency of blocking water rings or foam.

[0047] In some examples, the flexible sleeve can be made of rubber.

[0048] Furthermore, the outer surface of the flexible sleeve can be provided with multiple friction particles at intervals to increase water-blocking efficiency while reducing flow velocity.

[0049] Optionally, the interval between the water guide rib 3 and the water-blocking rib 2 can be in the range of 50mm to 150mm.

[0050] This application embodiment also provides a washing machine, including the outer drum of the washing machine as described above. The outer drum of the washing machine includes a drum body 1 and a water-retaining rib 2. The drum body 1 includes a connected end cap and a drum peripheral wall 11. The end cap is opposite to the door of the washing machine. The end cap and the drum peripheral wall 11 together form a receiving space for installing a rotatable inner drum. A drain groove 12 is recessed on the side of the drum peripheral wall 11 near the ground. The drain groove 12 includes a groove opening and a groove bottom. A drain hole 121 is provided through the groove bottom. The drum peripheral wall 11 includes a first end 13 and a second end 14 arranged around the periphery of the groove opening and sequentially distributed along the rotation direction of the inner drum. The water-retaining rib 2 extends from the second end 14 toward the inner drum and is spaced apart from the inner drum.

[0051] Optionally, please refer to Figure 4 The washing machine provided in this application embodiment can be a drum washing machine.

[0052] Optionally, the water guide rib 3 can be integrally formed with the cylinder peripheral wall 11 or set separately. When set separately, it can be welded, inserted, riveted, etc.

[0053] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0054] The outer drum and washing machine of the washing machine provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An outer drum of a washing machine, characterized in that, include: The drum body includes a connected end cap and a drum peripheral wall. The end cap is opposite to the door of the washing machine. The end cap and the drum peripheral wall together form a receiving space for installing a rotatable inner drum. A drainage groove is recessed on the side of the drum peripheral wall near the ground. The drainage groove includes a groove opening and a groove bottom. A drainage hole is provided through the groove bottom. The drum peripheral wall includes a first end and a second end that surround the groove opening and are sequentially distributed along the rotation direction of the inner drum. A water-blocking rib extends from the second end toward the inner cylinder and is spaced apart from the inner cylinder.

2. The outer drum of the washing machine according to claim 1, characterized in that, The water-blocking rib gradually approaches the first end from the second end towards one side of the inner cylinder.

3. The outer drum of the washing machine according to claim 1, characterized in that, It also includes water guide ribs, which extend from the first end to the second end and gradually approach the bottom of the tank.

4. The outer drum of the washing machine according to claim 3, characterized in that, The intersection of the extension line of the arc where the water guide rib is located and the bottom of the trough falls within the drain hole or on the side of the drain hole facing the water-blocking rib.

5. The outer drum of the washing machine according to claim 4, characterized in that, The orthographic projection of the water-blocking rib on the bottom of the trough covers the intersection point.

6. The outer drum of the washing machine according to claim 3, characterized in that, The water guide rib is provided with a speed reduction belt on the side facing the inner cylinder, which is used to reduce the flow rate of the water.

7. The outer drum of the washing machine according to claim 6, characterized in that, The speed bump includes multiple spaced-apart recesses and / or protrusions.

8. The outer drum of the washing machine according to claim 1, characterized in that, The water-blocking rib is integrally formed with the cylinder body.

9. The outer drum of the washing machine according to claim 8, characterized in that, It also includes a flexible sleeve that at least covers the end of the water-retaining rib that is away from the second end.

10. A washing machine, characterized in that, The outer drum of the washing machine as described in any one of claims 1-9.

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