Rotating drum assembly of washing machine and washing machine

Abstract

The present invention discloses a rotary barrel assembly of a washing machine and a washing machine, wherein the rotary barrel assembly comprises: a rotary barrel, wherein the inner diameter of the rotary barrel gradually increases from bottom to top, wherein the peripheral wall of the rotary barrel is formed with a water guide structure protruding toward the outer side of the rotary barrel, and a reinforcement structure is formed on the water guide structure; and a water guide cover, wherein the water guide cover is arranged at the water guide structure and the water guide cover is located in the rotary barrel, wherein the water guide cover or the water guide cover and the rotary barrel jointly define a water guide cavity, wherein the liquid rising in the rotary barrel due to the centrifugal force enters the water guide cavity through the water inlet of the water guide cavity and is discharged through the water outlet of the water guide cavity. According to the rotary barrel assembly of the washing machine of the embodiment of the present invention, the centrifugal force in the water guide cavity is greater than the centrifugal force in the rotary barrel, and the water is easier to flow into the water guide cavity, and will not flow into the rotary barrel again, thereby improving the dehydration effect; and the structural strength of the water guide structure is improved, so that the structural strength of the rotary barrel is high and not easy to deform, thereby ensuring the stability of the structure during the dehydration process.

Description

Technical Field

[0001] The present invention relates to the technical field of clothing processing, and in particular to a rotating drum assembly of a washing machine and a washing machine. Background Art

[0002] With the continuous development of washing machine technology, washing machines have become increasingly large-capacity. While washing machines are gradually becoming large-capacity, the overall size of the washing machine will inevitably increase. Therefore, it is necessary to provide a small-volume, large-capacity washing machine. At the same time, in the existing washing machine, water is distributed in the rotating barrel and the water tub during washing, that is, there is water distributed between the water tub and the rotating barrel, and the water consumption is large, resulting in a waste of water resources. Dirt in the existing washing machine is easily retained between the water tub and the rotating barrel, thereby breeding bacteria. Moreover, because there is water distributed between the water tub and the rotating barrel, the amount of detergent used is also large, resulting in a waste of detergent resources, which is not conducive to cost saving.

[0003] To this end, the related art proposes a washing machine that omits the water tub and only retains the rotating tub. A water guide shield is set on the inner wall of the rotating tub. During the dehydration process, the water in the rotating tub first climbs upward under the action of centrifugal force, and then falls and is discharged through the water guide shield under the action of gravity. However, since centrifugal force is involved in the entire dehydration process, it is impossible to take into account the influence of centrifugal force on the water during the climbing and falling processes, resulting in poor dehydration effect; in addition, the structure of only setting up a rotating tub makes the overall structural strength low, and it is easy to deform after long-term dehydration and other processes, which affects the user's use effect, and there is room for improvement. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a rotating tub assembly of a washing machine, which has a simple structure and high strength.

[0005] The invention also provides a washing machine.

[0006] The rotary drum assembly of a washing machine according to the first embodiment of the present invention comprises: a rotary drum, the inner diameter of which gradually increases from bottom to top, the peripheral wall of the rotary drum being formed with a water guide structure protruding toward the outer side of the rotary drum, the water guide structure being formed with a reinforcement structure; a water guide cover, the water guide cover being arranged at the water guide structure and being located in the rotary drum, the water guide cover or the water guide cover and the rotary drum jointly defining a water guide cavity, the liquid rising in the rotary drum due to the centrifugal force enters the water guide cavity through the water inlet of the water guide cavity and is discharged through the water outlet of the water guide cavity.

[0007] According to the rotating drum assembly of the washing machine of the embodiment of the present invention, the inner diameter of the rotating drum is set to gradually increase from bottom to top, so that during the rotation of the rotating drum, it is easier for water to rise to the water inlet along the inner circumferential wall of the rotating drum under the action of centrifugal force; the water guiding structure is set to an outwardly convex structure, so that the centrifugal force in the water guiding cavity is greater than the centrifugal force in the rotating drum, so that water can flow into the water guiding cavity more easily and will not flow into the rotating drum again, thereby improving the dehydration effect; by forming a reinforcement structure on the water guiding structure, the structural strength of the water guiding structure is improved, so that the structural strength of the rotating drum is high and not easy to deform, thereby ensuring the stability of the structure during the dehydration process and further ensuring the dehydration effect.

[0008] According to the rotary tub assembly of the washing machine according to the embodiment of the present invention, the lower surface of the water guide structure is formed in a triangle shape to constitute at least a part of the reinforcement structure.

[0009] According to the rotating drum assembly of the washing machine in an embodiment of the present invention, the water guiding structure is provided with a first water guiding section, an intermediate water guiding section and a second water guiding section in sequence along the circumference of the rotating drum, and both ends of the intermediate water guiding section are transitionally connected to the first water guiding section and the second water guiding section respectively.

[0010] Optionally, a cross-sectional contour line of the middle water-conducting section forms an arc shape with the center of the rotating barrel as the center of the circle.

[0011] Furthermore, the inner diameter of any location of the intermediate water-conducting section is not smaller than the inner diameter of the portion of the intermediate water-conducting section located above the location.

[0012] Optionally, the inner diameter of the middle water-conducting section at each location in the up-down direction is consistent.

[0013] Optionally, the inner diameter of the middle water-conducting section gradually increases from top to bottom.

[0014] Furthermore, the ratio of the length of the cross-sectional contour line of the middle water-conducting section to the length of the cross-sectional contour line of the water-conducting structure gradually decreases from top to bottom in the up-down direction.

[0015] Further, a cross-sectional contour line of the first water guiding section and / or the second water guiding section is formed in an oblique line shape that gradually extends toward the center of the rotating tub in a direction away from the middle water guiding section.

[0016] Furthermore, the first water guiding section and the second water guiding section are symmetrically arranged about a center line of the middle water guiding section.

[0017] According to the rotary drum assembly of the washing machine of the embodiment of the present invention, the distance between the vertical contour line of the rotary drum at the water guide structure and the vertical contour lines of the rotary drum at other positions gradually increases from top to bottom.

[0018] According to the rotary tub assembly of the washing machine of the embodiment of the present invention, the water inlet is arranged on the water guide cover, and the water outlet is arranged on the water guide structure and / or the bottom wall of the rotary tub.

[0019] According to the rotary tub assembly of the washing machine of the embodiment of the present invention, the water guide cavity is defined by the water guide cover alone or by the water guide cover and the water guide structure together.

[0020] According to the rotary tub assembly of the washing machine of the embodiment of the present invention, the water guide structures are multiple and are arranged at intervals along the circumference of the rotary tub, and the water guide covers are multiple and are respectively arranged on the multiple water guide structures.

[0021] The washing machine according to the second embodiment of the present invention comprises: a housing and the rotating barrel assembly of the washing machine according to the first embodiment of the present invention, wherein the rotating barrel assembly is rotatably disposed in the housing, and by adopting the rotating barrel assembly, the structural strength is high and the dehydration effect is good.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0024] Figure 1 is a structural schematic diagram of a rotating barrel assembly according to an embodiment of the present invention;

[0025] Figure 2 is a cross-sectional view of a rotating barrel assembly according to an embodiment of the present invention;

[0026] Figure 3 is a partial structural schematic diagram of a rotating tub assembly for a washing machine according to an embodiment of the present invention;

[0027] Figure 4 is another cross-sectional view of a rotating barrel assembly according to an embodiment of the present invention;

[0028] Figure 5 yes Figure 4 A magnified view of the structure in the middle;

[0029] Figure 6 is another cross-sectional view of a rotating barrel assembly according to an embodiment of the present invention;

[0030] Figure 7 yes Figure 6 A magnified view of the structure in middle B;

[0031] Figure 8 4 is a partial structural sectional view of a rotating tub assembly according to an embodiment of the present invention.

[0032] Reference numerals:

[0033] Rotating barrel assembly 200,

[0034] The rotating barrel 210 , the water outlet 211 , the water guide cover 220 , the water inlet 221 , the guide portion 230 , the water guide cavity 240 , the water guide structure 260 , the first water guide section 261 , the second water guide section 262 , and the middle water guide section 263 . DETAILED DESCRIPTION

[0035] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0037] 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 a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Reference below Figure 1-Figure 8 A rotary tub assembly 200 of a washing machine according to an embodiment of the present invention is described.

[0039] like Figure 1-Figure 8As shown, a rotating tub assembly 200 for a washing machine according to an embodiment of the present invention includes a rotating tub 210 and a water guide cover 220 .

[0040] The inner diameter of the rotating barrel 210 gradually increases from bottom to top, that is, the rotating barrel 210 can be constructed into a cone (truncated cone) that is larger at the top and smaller at the bottom. A water guide structure 260 is formed on the peripheral wall of the rotating barrel 210. The water guide structure 260 protrudes toward the outside of the rotating barrel 210 and has a reinforcement structure.

[0041] The water guiding cover 220 is located in the rotating barrel 210, and the water guiding cover 220 is set on the water guiding structure 260. The water guiding cover 220 defines a water guiding cavity 240, or the water guiding cavity 240 is jointly defined by the water guiding cover 220 and the rotating barrel 210. The water guiding cavity 240 has a water inlet 221 and a water outlet 211. The liquid that rises in the rotating barrel 210 due to the centrifugal force can enter the water guiding cavity 240 through the water inlet 221 and be discharged through the water outlet 211.

[0042] According to the rotating drum assembly 200 for a washing machine according to an embodiment of the present invention, by setting the inner diameter of the rotating drum 210 to gradually increase from bottom to top, during the rotation of the rotating drum 210, it is beneficial for the liquid to rise to the water inlet 221 along the inner circumferential wall of the rotating drum 210 under the action of centrifugal force more easily; by setting the water guiding structure 260 to an outwardly convex structure, the centrifugal force in the water guiding cavity 240 is greater than the centrifugal force in the rotating drum 210, so that water can flow into the water guiding cavity 240 more easily and will not flow into the rotating drum 210 again, thereby improving the dehydration effect; by forming a reinforcement structure on the water guiding structure 260, the structural strength of the water guiding structure 260 is improved, so that the structural strength of the rotating drum 210 is high and not easy to deform, thereby ensuring the stability of the structure during the dehydration process and further ensuring the dehydration effect.

[0043] like Figure 1 and Figure 7 As shown, according to one embodiment of the present invention, the lower surface of the water-conducting structure 260 is formed into a triangle, which constitutes at least a part of the reinforcing structure. The stability of the triangle is utilized to improve the structural strength of the water-conducting structure 260, thereby ensuring the stability of the overall structure during the dehydration process and improving the dehydration effect.

[0044] like Figure 2 and Figure 8As shown, according to one embodiment of the present invention, the water guiding structure 260 includes: a first water guiding section 261, an intermediate water guiding section 263 and a second water guiding section 262. The first water guiding section 261, the intermediate water guiding section 263 and the second water guiding section 262 are arranged in sequence along the circumference of the rotating barrel 210, and the two ends of the intermediate water guiding section 263 are transitionally connected to the first water guiding section 261 and the second water guiding section 262 respectively. By forming three water guiding sections in the water guiding structure 260, the structural strength of the water guiding structure 260 is enhanced by the water guiding sections, making it stable and not easy to deform.

[0045] like Figure 8 As shown, in some examples, the cross-sectional contour line of the middle water guiding section 263 forms an arc shape, and the arc takes the center of the rotating barrel 210 as the center of the circle, so that the middle water guiding section 263 forms a smooth arc section, and the radius of the middle water guiding section 263 is slightly larger than the radius of the rotating barrel 210 at the cross-section, which makes it easier for water to flow to the middle water guiding section 263 under the action of centrifugal force, thereby improving the dehydration effect; and it is also convenient for the manufacturing and forming of the middle water guiding section 263, thereby simplifying the manufacturing process.

[0046] In some examples, the inner diameters of the middle water guiding section 263 in the up and down directions are consistent, that is, the inner diameter of any point of the middle water guiding section 263 is equal to the inner diameter of the uppermost part of the middle water guiding section 263. In the longitudinal cross-sectional view of the water guiding structure 260, a vertical section is formed on the inner side of the middle water guiding section 263, and a part of the water guiding cavity 240 forms a vertical cavity. That is, on the basis of ensuring the water guiding effect and structural strength of the water guiding cavity 240, the structure of the middle water guiding section 263 is further simplified to facilitate its manufacturing and forming.

[0047] In other examples, the inner diameter of the middle water guide section 263 gradually increases from top to bottom, that is, the inner diameter of any part of the middle water guide section 263 is greater than the inner diameter of the part above the middle water guide section 263, and in the longitudinal cross-sectional view of the water guide structure 260, the inner side of the middle water guide section 263 forms a gradually outward (such as Figure 6 The outer side shown in the figure, that is, the side away from the center of the rotating barrel 210) is inclined, thereby making the centrifugal force at the bottom of the water guiding chamber 240 greater than the centrifugal force at the top, so that the water entering the water guiding chamber 240 can more easily reach the bottom and be discharged to the outside, further improving the dehydration effect.

[0048] According to one embodiment of the present invention, the ratio of the length of the cross-sectional contour line of the middle water guide section 263 to the length of the cross-sectional contour line of the water guide structure 260 gradually decreases from top to bottom in the up-down direction, and the length of the cross-sectional contour line of the middle water guide section 263 is the largest at the upper end of the water guide structure 260; Figure 1As shown, the length of the cross-sectional contour line of the middle water guiding segment 263 gradually decreases from top to bottom, and the length of the cross-sectional contour lines of the first water guiding segment 261 and the second water guiding segment 262 gradually increases from top to bottom.

[0049] In some examples, such as Figure 6 and Figure 7 As shown, the figure shows the cross-sectional contour line of the bottom of the water guiding structure 260. At the lower end of the water guiding structure 260, the length of the middle water guiding section 263 is close to zero, and a triangle is formed between the first water guiding section 261, the second water guiding section 262 and the water guiding cover 220 / or the rotating barrel 210, that is, at the water outlet 211, the cross-section of the water guiding cavity 240 forms a triangle, thereby improving the structural strength of the water guiding structure 260; and the cross-sectional area of ​​the water guiding cavity 240 here is larger than the cross-sectional area of ​​the part located above this place, ensuring that the water entering the water guiding cavity 240 can flow out in time, thereby ensuring the dehydration effect.

[0050] In some examples, the cross-sectional profile of the first water guide segment 261 is formed into an oblique line, and the oblique line gradually extends toward the center of the rotating barrel 210 in a direction away from the middle water guide segment 263, such as Figure 8 As shown, the first water guiding section 261 is located on the left side of the middle water guiding section 263. From right to left, the cross-sectional contour line of the first water guiding section 261 gradually extends inwardly, so that the first water guiding section 261 is smoothly connected to the rotating barrel 210 to avoid the formation of sharp edges that affect the structural strength.

[0051] In other examples, the cross-sectional profile of the second water-conducting section 262 also forms an oblique line, and in the direction away from the middle water-conducting section 263, the oblique line gradually extends toward the center of the rotating barrel 210, such as Figure 8 As shown, the second water guiding section 262 is located on the right side of the middle water guiding section 263. From left to right, the cross-sectional contour line of the second water guiding section 262 gradually extends inwardly, so that the second water guiding section 262 is smoothly connected to the rotating barrel 210 to avoid the formation of sharp edges that affect the structural strength.

[0052] like Figure 7 and Figure 8 As shown, in some examples, the first water guiding segment 261 and the second water guiding segment 262 are symmetrically arranged about the center line of the middle water guiding segment 263, that is, the water guiding structure 260 is symmetrically arranged along the center line of the middle water guiding segment 263, thereby further simplifying the manufacturing process of the water guiding structure 260 while ensuring the dehydration effect, reducing the manufacturing difficulty and improving the stability of the structure.

[0053] According to an embodiment of the present invention, the distance between the vertical contour line of the rotating tub 210 at the water guide structure 260 and the vertical contour lines of the rotating tub 210 at other positions gradually increases from top to bottom.

[0054] It can be understood that the contour lines of the rotating barrel 210 in the up-down direction at the water-conducting structure 260 and the contour lines of the rotating barrel 210 in the up-down direction at other positions all form straight lines. Since the rotating barrel 210 is configured as a cone that is larger at the top and smaller at the bottom, the contour lines of the rotating barrel 210 in the up-down direction at the water-conducting structure 260 can form a vertical line extending in the up-down direction, or can form an inclined straight line that gradually extends outward from top to bottom relative to the up-down direction, or can form an inclined straight line that gradually extends inward from top to bottom relative to the up-down direction.

[0055] According to one embodiment of the present invention, the water inlet 221 is arranged on the water guide cover 220, and the water outlet 211 is arranged on the water guide structure 260 and / or the bottom wall of the rotating barrel 210, that is, the water outlet 211 can be arranged on the water guide structure 260, or on the bottom wall of the rotating barrel 210, or the water outlet 211 is arranged on the water guide structure 260 and the rotating barrel 210.

[0056] Specifically, the water outlet 211 is arranged on the water guide structure 260, so that the water guide cover 220 covers the water outlet 211, and the lower end of the water guide cover 220 is only connected to the water guide structure 260, which is conducive to the sealing of the water guide cover 220. Of course, the water outlet 211 in the present invention can also be arranged on the bottom wall of the rotating barrel 210, and the water guide cover 220 covers the water outlet 211, which is conducive to improving the dehydration efficiency during dehydration, and the dehydration effect is good, and the splashing of water from the water outlet 211 can be effectively reduced; when the water outlet 211 is arranged on the water guide structure 260 and the bottom wall of the rotating barrel 210, it is not only conducive to the sealing of the water guide cover 220, but also conducive to improving the dehydration efficiency during dehydration, and can effectively prevent water from splashing out of the water outlet 211.

[0057] Further, the water inlet 221 is provided at the upper part of the water guide cover 220, and the water outlet 211 is provided at the lower part of the water guide structure 260. It can be understood here that the upper part of the water guide cover 220 refers to the part above the center of the water guide cover 220 in the up-down direction, and the lower part of the water guide structure 260 refers to the part below the center of the water guide structure 260 in the up-down direction. Thus, during dehydration, the rotating barrel 210 rotates, and the water in the rotating barrel 210 rises under the action of centrifugal force. The water inlet 221 located at the upper part of the water guide cover 220 can better collect the rising water. This part of the water enters the water guide cover 220 from the water inlet 221, and flows to the water outlet 211 below under the guidance of the water guide cover 220, thereby further improving the dehydration efficiency and the dehydration effect.

[0058] Furthermore, if Figure 1As shown, the water inlet 221 is arranged at the upper end of the water guide cover 220 to further facilitate the collection of liquid that rises to the upper end of the rotating barrel 210 under the action of centrifugal force in the rotating barrel 210. The water outlet 211 is arranged in the water guide structure 260 and is adjacent to the bottom wall of the rotating barrel 210. The water outlet 211 is spaced a predetermined distance from the bottom wall of the rotating barrel 210, thereby facilitating the sealing of the water guide cover 220.

[0059] According to one embodiment of the present invention, the water guiding cavity 240 of the water guiding cover 220 is defined by the water guiding cover 220 alone or by the water guiding cover 220 and the water guiding structure 260. In other words, a complete water guiding cavity 240 can be defined in the water guiding cover 220, and a through hole connecting the water guiding cavity 240 and the water outlet 211 is provided on the water guiding cover 220; or, a water guiding cavity 240 with one side open is defined in the water guiding cover 220, and when the water guiding cover 220 is installed on the water guiding structure 260, the open side of the water guiding cavity 240 is closed by the water guiding structure 260.

[0060] According to one embodiment of the present invention, Figure 1 and Figure 6 As shown, in order to improve the dehydration effect of the rotating barrel 210, there are multiple water-guiding structures 260, and the multiple water-guiding structures 260 are arranged at intervals along the circumference of the rotating barrel 210, and there are multiple water-guiding covers 220, and the multiple water-guiding covers 220 are respectively arranged on the multiple water-guiding structures 260, that is, the number of water-guiding structures 260 corresponds to the number of water-guiding covers 220, and a water-guiding cover 220 is installed on each water-guiding structure 260.

[0061] In some preferred examples, there are two water guiding structures 260 , which are arranged opposite to each other in the radial direction of the rotating barrel 210 , and there are two water guiding covers 220 , which are arranged on the two water guiding structures 260 in a one-to-one correspondence.

[0062] A washing machine according to an embodiment of the present invention (not shown in the figure) includes: a housing (not shown in the figure) and a rotating barrel assembly 200 of the washing machine according to an embodiment of the present invention. The rotating barrel assembly 200 is rotatably disposed in the housing. By adopting the above-mentioned rotating barrel assembly 200, the structural strength of the washing machine is improved, and the dehydration effect is further improved.

[0063] It will be understood by those skilled in the art that the rotating drum assembly 200 for a washing machine according to the present invention can be used for a single-drum washing machine or a double-drum washing machine, and the present invention does not limit this.

[0064] According to one embodiment of the present invention, the washing machine may be a pulsator washing machine. By providing a reinforcing structure on the rotating drum 200 of the pulsator washing machine, the overall structural strength is enhanced, making it less prone to deformation, thereby ensuring the washing and dehydration effects and improving the user experience.

[0065] Reference below Figure 1-Figure 8 A specific embodiment according to the present invention is described.

[0066] The washing machine includes a housing and a rotating tub assembly 200. The rotating tub assembly 200 includes a rotating tub 210 and a water guide cover 220.

[0067] The rotating barrel 210 is formed into an inverted frustum shape that is larger at the top and smaller at the bottom. The inner diameter of the rotating barrel 210 gradually increases from bottom to top. The peripheral wall of the rotating barrel 210 has a plurality of water-conducting structures 260 protruding outward. The plurality of water-conducting structures 260 are arranged at intervals along the circumference of the rotating barrel 210, wherein the contour lines of the rotating barrel 210 in the upward and downward directions at the water-conducting structures 260 form a vertical line extending in the upward and downward directions.

[0068] The water guide cover 220 is located in the rotating barrel 210, and the water guide cover 220 is set on the water guide structure 260. The water guide cover 220 and the water guide structure 260 of the rotating barrel 210 jointly define a water guide cavity 240. A water inlet 221 is defined between the upper end of the water guide cover 220 and the water guide structure 260. The water inlet 221 is convenient for collecting the liquid in the rotating barrel 210 that rises to the upper end of the rotating barrel 210 under the action of centrifugal force; the water outlet 211 of the water guide cavity 240 is set at the bottom of the water guide structure 260, and the liquid entering the water guide cavity 240 can be discharged in time through the water outlet 211.

[0069] The water guiding structure 260 has a reinforcement structure. Specifically, the reinforcement structure includes a first water guiding section 261, an intermediate water guiding section 263 and a second water guiding section 262. The first water guiding section 261, the intermediate water guiding section 263 and the second water guiding section 262 are arranged in sequence along the circumference of the rotating barrel 210. The two ends of the intermediate water guiding section 263 are transitionally connected to the first water guiding section 261 and the second water guiding section 262 respectively, and the other end of the first water guiding section 261 and the other end of the second water guiding section 262 are smoothly transitionally connected to the rotating barrel 210 respectively.

[0070] The cross-sectional contour line of the middle water guiding section 263 forms an arc shape with the center of the rotating barrel 210 as the center of the circle, and the length of the cross-sectional contour line of the middle water guiding section 263 is the largest at the upper end of the water guiding structure 260, and the length of the middle water guiding section 263 is close to zero at the lower end of the water guiding structure 260, and the length of the cross-sectional contour line of the middle water guiding section 263 gradually decreases from top to bottom; along the up-down direction, the inner side of the middle water guiding section 263 is a vertical line, so that the inner diameter of the middle water guiding section 263 at each location in the up-down direction is consistent.

[0071] The first water guide section 261 and the second water guide section 262 are arranged symmetrically about the center line of the middle water guide section 263. The cross-sectional contour lines of the first water guide section 261 and the second water guide section 262 both form an oblique line shape. In the direction away from the middle water guide section 263, the oblique line gradually extends toward the center of the rotating barrel 210. At the upper end of the water guide structure 260, the length of the cross-sectional contour line of the first water guide section 261 and the second water guide section 262 is the smallest. At the lower end of the water guide structure 260, the length of the cross-sectional contour line of the first water guide section 261 and the second water guide section 262 is the largest. At the water outlet 211, the cross-sectional shapes of the water guide cover 220, the first water guide section 261 and the second water guide section 262 form a triangle, thereby improving the strength of the water guide structure 260.

[0072] like Figure 1 and Figure 2 As shown, according to one embodiment of the present invention, the peripheral wall of the rotating barrel 210 is also formed with a guide portion 230 protruding toward the outer side of the rotating barrel 210 and located above the water guiding structure 260. The guide portion 230 is connected to the water guiding structure 260 and the guide portion 230 is connected to the water inlet 221. The liquid that rises in the rotating barrel 210 due to the centrifugal force can pass through the water inlet 221 and flow into the water guiding cavity 240 and / or the water guiding structure 260 through the guide portion 230. The projection length of the guide portion 230 in the circumferential direction of the rotating barrel 210 is greater than the projection length of the water guide structure 260 in the circumferential direction of the rotating barrel 210, that is, in the circumferential direction, the guide portion 230 extends a certain distance to both sides of the water guide structure 260, the guide portion 230 is located above the water guide structure 260 and the guide portion 230 and the water guide structure 260 are connected in a T shape. Because the guide portion 230 is protruding toward the outside of the rotating barrel 210 and the guide portion 230 extends a certain distance to both sides of the water guide structure 260 in the circumferential direction, the volume of the cavity in the guide portion 230 is increased, so that the liquid that rises in the rotating barrel 210 due to the centrifugal force can easily enter the guide portion 230, and will not flow into the rotating barrel 210 again from the water inlet 221, thereby saving dehydration time and improving dehydration efficiency, while reducing the moisture content of the washed clothes and improving the dehydration effect.

[0073] Among them, the guide part 230 extends to the two sides of the water guide structure 260 at the same distance, so that the structure is beautiful and the manufacturing process is simple; the guide part 230 and the top of the water guide structure 260 are smoothly connected, and the guide part 230 and the water guide structure 260 can be an integrally formed structure, which is easy to manufacture and makes the guide part 230 and the water guide structure 260 transition evenly, so that the liquid entering the guide part 230 can flow into the water guide cavity 240 and / or the water guide structure 260 in time.

[0074] The contour line in the up-down direction at the guide portion 230 of the rotating barrel 210 can form a vertical line extending in the up-down direction, or can form an inclined straight line extending gradually outward from top to bottom relative to the up-down direction. This contour line is smoothly connected to the contour line in the up-down direction at the water guiding structure 260 of the rotating barrel 210, that is, the longitudinal extension direction of the guide portion 230 is the same as the longitudinal extension direction of the water guiding structure 260.

[0075] Because the rotating barrel 210 is constructed in a cone shape (truncated cone shape) that is larger at the top and smaller at the bottom, the contour line in the up and down directions at the water guiding structure 260 of the rotating barrel 210 can form a vertical line extending in the up and down directions, or can form an inclined straight line extending gradually outward from top to bottom relative to the up and down directions. Although the guide part 230 extends a certain distance to both sides of the water guiding structure 260 in the circumferential direction, the internal space of the water guiding structure 260 gradually increases from top to bottom, which can ensure that during dehydration, the liquid that rises in the rotating barrel 210 due to the centrifugal force flows smoothly from the water inlet 221 and flows out from the water outlet 211, thereby improving the dehydration efficiency and reducing the moisture content of the washed clothes, while saving dehydration time.

[0076] The washing machine according to the embodiment of the present invention adopts a single-barrel structure, that is, only a rotating barrel 210 is provided without a water holding barrel, so that water is in the rotating barrel 210 during washing, which saves more water; by further providing a water guide cover 220 on the inner circumferential wall surface of the rotating barrel 210 and defining a water guide cavity 240, the water in the rotating barrel 210 rises under the action of centrifugal force during dehydration, and enters the water guide cavity 240 from the water inlet 221, and flows to the water outlet 211 under the guidance of the water guide cavity 240, and is then discharged through the water outlet 211. Therefore, while eliminating the water holding barrel to simplify the structure, increase the capacity, reduce the growth of dirt and bacteria, and save water, the dehydration effect can be improved at the same time.

[0077] Furthermore, by providing an inverted truncated cone-shaped rotating barrel 210 and a water-guiding structure 260 protruding from the rotating barrel 210, the influence of the centrifugal force of water during its ascent and descent can be taken into account, thereby improving the dehydration effect. By providing a reinforcing structure on the water-guiding structure 260, the strength of the overall structure is further improved, making it less prone to deformation, thereby ensuring the stability of the dehydration process and improving the dehydration effect.

[0078] In addition, the water guide cover 220 is connected to the rotating barrel 210, and there is no need to set an additional structure on the box body or set the box body into a double-layer structure with inside and outside to achieve water guidance during the dehydration process. In this way, the material selection of the box body is no longer limited. For example, sheet metal and other materials can be used, thereby greatly improving the appearance.

[0079] Other structures and operations of the washing machine according to the embodiment of the present invention are well known to those skilled in the art and will not be described in detail here.

[0080] In the description of the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

[0081] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0082] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A rotary drum assembly (200) of a washing machine, characterized in that: include: A rotating barrel (210), wherein the inner diameter of the rotating barrel (210) gradually increases from bottom to top, a water guide structure (260) is formed on the peripheral wall of the rotating barrel (210) and is arranged to protrude toward the outside of the rotating barrel (210), and a reinforcement structure is formed on the water guide structure (260); a water guide cover (220), the water guide cover (220) being arranged at the water guide structure (260) and being located in the rotating barrel (210); the water guide cover (220) or the water guide cover (220) and the rotating barrel (210) jointly defining a water guide cavity (240); liquid rising in the rotating barrel (210) due to the centrifugal force enters the water guide cavity (240) through the water inlet (221) of the water guide cavity (240) and is discharged through the water outlet (211) of the water guide cavity (240); The lower surface of the water-conducting structure (260) is formed into a triangle to constitute at least a part of the reinforcing structure; The water guiding structure (260) is provided with a first water guiding section (261), an intermediate water guiding section (263) and a second water guiding section (262) in sequence along the circumference of the rotating barrel (210); two ends of the intermediate water guiding section (263) are transitionally connected to the first water guiding section (261) and the second water guiding section (262) respectively; The inner diameter of any location of the intermediate water-conducting section (263) is not less than the inner diameter of the portion of the intermediate water-conducting section (263) located above that location.

2. The rotary drum assembly (200) of the washing machine according to claim 1, characterized in that: The cross-sectional contour line of the middle water-conducting section (263) forms an arc shape with the center of the rotating barrel (210) as the center of the circle.

3. The rotary drum assembly (200) of the washing machine according to claim 1, characterized in that: The inner diameter of the middle water guide section (263) is consistent at all locations in the up and down directions.

4. The rotary drum assembly (200) of the washing machine according to claim 1, characterized in that: The inner diameter of the middle water-conducting section (263) gradually increases from top to bottom.

5. The rotary drum assembly (200) of the washing machine according to claim 1, characterized in that: The ratio of the length of the cross-sectional contour line of the middle water-conducting section (263) to the length of the cross-sectional contour line of the water-conducting structure (260) gradually decreases from top to bottom in the up-down direction.

6. The rotary tub assembly (200) of the washing machine according to claim 1, characterized in that: The cross-sectional contour line of the first water guiding section (261) and / or the second water guiding section (262) is formed in an oblique line shape that gradually extends toward the center of the rotating barrel (210) in a direction away from the middle water guiding section (263).

7. The rotary tub assembly (200) of the washing machine according to claim 1, characterized in that: The first water guiding section (261) and the second water guiding section (262) are arranged symmetrically about the center line of the middle water guiding section (263).

8. The rotary tub assembly (200) of the washing machine according to claim 1, characterized in that: The distance between the contour line of the rotating barrel (210) in the up-down direction at the water guide structure (260) and the contour lines of the rotating barrel (210) in the up-down direction at other positions gradually increases from top to bottom.

9. The rotary drum assembly (200) of the washing machine according to claim 1, characterized in that: The water inlet (221) is provided on the water guide cover (220), and the water outlet (211) is provided on the water guide structure (260) and / or the bottom wall of the rotating barrel (210).

10. The rotary tub assembly (200) of the washing machine according to claim 1, characterized in that: The water guide cavity (240) is defined by the water guide cover (220) alone or is defined by the water guide cover (220) and the water guide structure (260) together.

11. The rotary tub assembly (200) of the washing machine according to claim 1, characterized in that: The water guide structures (260) are multiple and are arranged at intervals along the circumference of the rotating barrel (210); the water guide covers (220) are multiple and are respectively arranged on the multiple water guide structures (260).

12. A washing machine, characterized in that: include: Box; as well as According to the rotating tub assembly (200) of the washing machine according to any one of claims 1 to 11, the rotating tub assembly (200) is rotatably arranged in the housing.

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