Washing drum and laundry treating apparatus having the same

Abstract

The present application discloses a washing drum and a laundry treating apparatus having the same, the washing drum comprising: a drum body, an inner circumferential wall of the drum body comprising a pattern area, the pattern area being formed with a plurality of pattern structures, each of the pattern structures comprising a protrusion protruding inwardly, the protrusion having a first scrubbing surface and a second scrubbing surface oppositely arranged in a circumferential direction of the drum body, the first scrubbing surface and the second scrubbing surface extending in a direction inclined towards each other in a direction from outside to inside, an included angle between the first scrubbing surface and a reference surface being smaller than an included angle between the second scrubbing surface and the reference surface, the reference surface being a plane where the inner circumferential wall of the drum body in an unfolded state does not form the pattern structures. According to the washing drum of the present application, the pattern structures can facilitate the water flow to form a vortex flow near the surface thereof to increase the turbulence degree of the surface of the laundry, which is beneficial to improve the washing ratio, and can also reduce the abrasion to the laundry.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, and in particular to a washing drum and a clothing treatment device having the same. Background Technology

[0002] Currently, there are many types of patterns on the inner drum of washing machines, such as pillow-shaped soft inner drum, fingerprint-marked inner drum, and wave-shaped water-ripple inner drum. However, most of the patterns on the inner drum have limited effect on improving the washing ratio and reducing wear and tear on clothes. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of the present invention is to provide a washing drum that can improve the washing efficiency of clothes while reducing wear and tear.

[0004] The present invention also provides a garment processing device having the above-mentioned washing drum.

[0005] According to a first aspect of the present invention, a washing drum includes: a drum body, the inner peripheral wall of the drum body including a patterned region, the patterned region forming a plurality of patterned structures, each of the patterned structures including an inwardly protruding protrusion, the protrusion having a first rubbing surface and a second rubbing surface disposed opposite to each other in the circumferential direction of the drum body, the first rubbing surface and the second rubbing surface extending obliquely toward each other in an outward-inward direction, the angle between the first rubbing surface and a reference plane being smaller than the angle between the second rubbing surface and the reference plane, the reference plane being a plane containing the area of ​​the inner peripheral wall of the drum body where the patterned structure is not formed when the drum body is in an unfolded state.

[0006] According to an embodiment of the present invention, a washing drum has multiple patterned hooks formed in the patterned area of ​​the inner peripheral wall of the drum. The patterned structure includes protrusions extending inward from the inner peripheral wall of the drum. When the drum rotates, axial vortices and lateral counter-vortices are generated near the second washing surface when water flows through it. These vortices increase the turbulence on the surface of the clothes, and the use of fine vortices to wash the clothes helps improve the washing ratio. Furthermore, the patterned structure is configured such that the angle between the first washing surface and the reference surface is smaller than the angle between the second washing surface and the reference surface; that is, the inclination of the first washing surface is gentler than that of the second washing surface. This reduces water flow resistance. When water flows towards the first washing surface with the drag-reducing structure, a stable boundary layer is formed, creating a water film to separate the clothes from the drum, reducing wear on the clothes during washing. In addition, the multiple patterned structures on the inner peripheral wall of the drum work together to promote the formation of large vortices within the drum, thereby more powerfully rotating the clothes and further promoting washing. In addition, by arranging multiple patterned structures on the inner circumferential wall of the drum, the structural strength of the drum is enhanced, the resistance to deformation is improved, and the service life of the washing drum is extended.

[0007] According to some embodiments of the present invention, at least one of the first scrubbing surface and the second scrubbing surface is formed as a curved surface.

[0008] Furthermore, both the first and second scrubbing surfaces are bent in the circumferential direction of the cylinder to form the curved surface, and the bending directions of the first and second scrubbing surfaces are the same.

[0009] Furthermore, at least one of the first scrubbing surface and the second scrubbing surface is formed in a crescent shape.

[0010] According to some embodiments of the present invention, the pattern structure is axially symmetrical, the axial direction of the pattern structure is parallel to the circumference of the cylinder, and both the first rubbing surface and the second rubbing surface are symmetrical about the axial direction of the pattern structure.

[0011] According to some embodiments of the present invention, the first scrubbing surface has a first contour line and a second contour line opposite to each other in the circumferential direction of the cylinder body, the first contour line and the second contour line are respectively connected at both ends along the axial direction of the cylinder body, and the radius of curvature of the first contour line is smaller than the radius of curvature of the second contour line; the second scrubbing surface has a third contour line and a fourth contour line opposite to each other in the circumferential direction of the cylinder body, the third contour line and the fourth contour line are respectively connected at both ends along the axial direction of the cylinder body, and the radius of curvature of the third contour line is smaller than the radius of curvature of the fourth contour line; the second contour line and the third contour line coincide.

[0012] According to some embodiments of the present invention, the angle between the first scrubbing surface and the reference surface is α, and the value of α ranges from 5 to 20°; and / or, the angle between the second scrubbing surface and the reference surface is β, and the value of β ranges from 15 to 45°.

[0013] According to some embodiments of the present invention, the angle between the first scrubbing surface and the reference surface is α, the angle between the second scrubbing surface and the reference surface is β, and the difference between β and α is in the range of 10-20°.

[0014] According to some embodiments of the present invention, the length of the pattern structure in the circumferential direction of the cylinder is L, and the value of L ranges from 10mm to 50mm.

[0015] According to some embodiments of the present invention, the length of the pattern structure in the circumferential direction of the cylinder is L, the width of the pattern structure in the axial direction of the cylinder is W, and the ratio of W to L is in the range of 0.5 to 0.9.

[0016] In some embodiments, the length of the patterned structure in the circumferential direction of the cylinder is L, the width of the first scrubbing surface in the circumferential direction of the cylinder is a, and the ratio of a to L is in the range of 0.1 to 0.3.

[0017] According to some embodiments of the present invention, the length of the patterned structure in the circumferential direction of the cylinder is L, the width of the second scrubbing surface in the circumferential direction of the cylinder is b, and the ratio of b to L is in the range of 0.05 to 0.3.

[0018] According to some embodiments of the present invention, the pattern structure is axially symmetrical, and the axial direction of the pattern structure is parallel to the circumference of the cylinder.

[0019] In some embodiments, the pattern structure is formed by an inward indentation of the peripheral wall of the cylinder, or the pattern structure is formed by both an inward and outward indentation of the peripheral wall of the cylinder, wherein the inward indentation of the peripheral wall of the cylinder constitutes at least a portion of the protrusion.

[0020] Furthermore, the pattern structure is formed by the inward and outward concavity of the peripheral wall of the cylinder, the outer end of the first rubbing surface is flush with the reference surface, and the outer end of the second rubbing surface is located outside the reference surface.

[0021] Furthermore, the outer end of the second scrubbing surface is connected to the reference surface by an inclined connecting surface, and a recess is defined between the connecting surface and the second scrubbing surface.

[0022] In some embodiments, a dehydration hole is formed on the cylinder body, penetrating the cylinder body along the thickness direction of the cylinder body, the dehydration hole being formed on the reference surface, and / or the dehydration hole being formed on the connecting surface.

[0023] According to some embodiments of the present invention, the angle between the connecting surface and the reference surface is smaller than the angle between the first scrubbing surface and the reference surface.

[0024] According to some embodiments of the present invention, the length of the pattern structure in the circumferential direction of the cylinder is L, the distance between the lowest point of the pit and the reference surface is H1, and the ratio of H1 to L is in the range of 0.01 to 0.1.

[0025] According to some embodiments of the present invention, the length of the pattern structure in the circumferential direction of the cylinder is L, the distance between the highest point of the protrusion and the reference surface is H2, and the ratio of H2 to L is in the range of 0.01 to 0.1.

[0026] A garment processing apparatus according to a second aspect of the present invention includes: a washing drum as described in the first aspect of the present invention.

[0027] According to the clothing processing equipment of the present invention, by setting the washing drum in the first aspect embodiment above, the wear and tear on clothing can be reduced during the washing process, and the washing ratio of clothing can be improved, resulting in a better cleaning effect.

[0028] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0029] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0030] Figure 1 This is a schematic diagram of the unfolded state of the washing drum body according to an embodiment of the present invention;

[0031] Figure 2 yes Figure 1 Enlarged view of part E in the center circle;

[0032] Figure 3 yes Figure 2 A schematic diagram of the basic unit of the patterned area shown;

[0033] Figure 4 yes Figure 3 A schematic diagram showing the basic units assembled along the circumference of the cylinder;

[0034] Figure 5yes Figure 3 A schematic diagram showing the basic units assembled along the axial direction of the cylinder;

[0035] Figure 6 yes Figure 2 A schematic diagram of the patterned structure of the cylindrical body shown;

[0036] Figure 7 It is along Figure 6 Sectional view of line AA in the middle;

[0037] Figure 8 This is a schematic diagram showing the regional distribution of eddies generated when water flows through a patterned structure.

[0038] Figure 9 It is a simulation diagram of the axial vortex generated when water flows through the patterned structure;

[0039] Figure 10 It is a simulation diagram of the transverse vortex generated when water flows through the patterned structure.

[0040] Figure label:

[0041] Washing drum 100:

[0042] Cylinder 1, patterned area 11, patterned structure 111, first rubbing surface 112, first outline 1121, second outline 1122, second rubbing surface 113, third outline 1131, fourth outline 1132, connecting surface 114, pit 115, protrusion 116, reference surface 12, basic unit 13, dewatering hole 14. Detailed Implementation

[0043] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0044] The following is for reference. Figures 1-10 A washing drum 100 according to an embodiment of the first aspect of the present invention is described.

[0045] like Figure 1 , Figure 6 and Figure 7 As shown, the washing tub 100 according to a first aspect embodiment of the present invention includes: tub body 1.

[0046] Specifically, the inner peripheral wall of the cylinder 1 may include a patterned area 11, which forms multiple patterned structures 111. The patterned area 11 of the cylinder 1 may be composed of multiple basic units 13. Each basic unit 13 may contain at least one complete patterned structure 111. Each patterned structure 111 may include an inwardly protruding protrusion 116. Thus, the patterned area 11 is modularized. When the processing equipment cannot form all the patterned structures 111 on the cylinder 1 at one time, at least one basic unit 13 can be processed and formed each time. Then, adjacent basic units 13 are combined. Repeating this step can complete the processing of all the patterned structures 111 on the inner wall of the cylinder 1.

[0047] Each pattern structure 111 may include a protrusion 116, which may protrude inward from the inner peripheral wall of the cylinder 1. The protrusion 116 has at least a first rubbing surface 112 and a second rubbing surface 113. The first rubbing surface 112 and the second rubbing surface 113 are arranged opposite to each other in the circumferential direction of the cylinder 1. The first rubbing surface 112 and the second rubbing surface 113 extend obliquely toward each other in the direction from the outside to the inside. Here, the inside and outside directions refer to the direction toward the central axis of the cylinder when the cylinder 1 is formed into a cylindrical shape. The direction away from the central axis of the cylinder is the outside direction. The inside and outside directions may be parallel to the radial direction of the cylinder 1.

[0048] The angle between the first scrubbing surface 112 and the reference surface 12 can be smaller than the angle between the second scrubbing surface 113 and the reference surface 12. Here, the reference surface 12 can be the plane where the inner peripheral wall of the cylinder 1 does not form the pattern structure 111 when the cylinder 1 is in the unfolded state.

[0049] In other words, the first scrubbing surface 112 can extend from the reference surface 12 of the cylinder 1 toward the inside of the cylinder 1 while simultaneously extending at an angle toward the side where the second scrubbing surface 113 is located. Correspondingly, the second scrubbing surface 113 can extend from the reference surface 12 of the cylinder 1 toward the inside while simultaneously extending at an angle toward the side where the first scrubbing surface 112 is located. The first scrubbing surface 112 and the second scrubbing surface 113 together form two surfaces of the protrusion 116, and the angle of the first scrubbing surface 112 is gentler than that of the second scrubbing surface 113. Taking the direction of water flow on the surface of the cylinder 1 as the direction of water flow from the first scrubbing surface 112... Taking the flow from one side to the second washing surface 113 as an example, since the inclination of the first washing surface 112 is gentler than that of the second washing surface 113, the resistance encountered by the water flow when it passes through the first washing surface 112 can be reduced. When the water flows through the first washing surface 112 with the drag-reducing structure, a stable boundary layer is formed, forming a water film to separate the clothes from the drum 1, reducing the wear of the clothes during the washing process. When the water flows through the second washing surface 113, axial vortices and transverse vortices can be generated. The vortices can increase the turbulence on the surface of the clothes, and the use of fine vortices to wash the clothes is beneficial to improving the washing ratio.

[0050] The cylinder 1 may include a patterned area 11 and a non-patterned area, and the cylinder 1 has an unfolded state and a formed state. When the cylinder 1 is in the unfolded state, the area on the cylinder 1 with the patterned structure 111 is the patterned area 11, and the part on the cylinder 1 without the patterned structure 111 is the non-patterned area. The non-patterned area can be roughly formed as a plane, and the non-patterned area can also serve as the reference surface 12 of the patterned structure 111.

[0051] It should also be noted that the cylinder 1 can be square, such as rectangular, in the unfolded state, and cylindrical in the formed state. The length direction of the cylinder 1 in the unfolded state corresponds to the circumferential direction of the cylinder 1 in the formed state, and the thickness direction of the cylinder 1 in the unfolded state corresponds to the inward and outward directions of the cylinder 1 in the formed state. That is, when the cylinder 1 is in the formed state, the first rubbing surface 112 and the second rubbing surface 113 are arranged opposite to each other in the circumferential direction of the cylinder 1. Correspondingly, when the cylinder 1 is in the unfolded state, the first rubbing surface 112 and the second rubbing surface 113 are arranged opposite to each other in the length direction of the cylinder 1. When the cylinder 1 is in the formed state, the pattern structure 111 includes a protrusion 116 formed by the cylinder 1 protruding inward. Correspondingly, when the cylinder 1 is in the unfolded state, the pattern structure 111 includes a protrusion 116 formed by the cylinder 1 protruding along one side of the thickness direction.

[0052] According to an embodiment of the present invention, the washing drum 100 has multiple patterned hooks formed in the patterned area 11 of the inner peripheral wall of the drum body 1, and the patterned structure 111 includes protrusions 116 protruding inward from the inner peripheral wall of the drum body 1. When the drum body 1 rotates, when the water flows through the second washing surface 113, axial vortices and transverse vortices can be generated near the second washing surface 113. The vortices can increase the turbulence on the surface of the clothes, and the clothes can be washed by small vortices, which is beneficial to improving the washing ratio. The patterned structure 111 is configured such that the angle between the first washing surface 112 and the reference surface 12 is smaller than the angle between the second washing surface 113 and the reference surface 12. That is, the inclination of the first washing surface 112 is gentler than the inclination of the second washing surface 113. This can reduce the water flow resistance. When the water flows to the first washing surface 112 with the drag reduction structure, a stable boundary layer is formed, forming a water film to separate the clothes from the drum body 1, reducing the wear of the clothes during the washing process. In addition, the multiple patterned structures 111 on the inner circumferential wall of the drum 1 can work together to promote the formation of a large vortex in the water flow within the drum 1, thereby more powerfully driving the clothes to rotate and further promoting the washing of the clothes. Furthermore, by arranging multiple patterned structures 111 on the inner circumferential wall of the drum 1, it is beneficial to enhance the structural strength of the drum 1, improve the resistance to deformation of the drum 1, and thus extend the working life of the washing drum 100.

[0053] Optionally, the inner edge of the first scrubbing surface 112 and the inner edge of the second scrubbing surface 113 can be directly connected, that is, the inner edge of the first scrubbing surface 112 and the inner edge of the second scrubbing surface 113 can overlap each other, and the outer edge of the first scrubbing surface 112 and the outer edge of the second scrubbing surface 113 can be spaced apart in the circumferential direction of the cylinder 1. Alternatively, a portion of the outer edge of the first scrubbing surface 112 and a portion of the outer edge of the second scrubbing surface 113 can be spaced apart in the circumferential direction of the cylinder 1.

[0054] According to some embodiments of the present invention, reference Figures 2-6At least one of the first washing surface 112 and the second washing surface 113 is formed as a curved surface. That is, only the first washing surface 112 can be formed as a curved surface. In this way, when the water flow direction on the surface of the drum 1 is from the first washing surface 112 to the second washing surface 113, the curved first washing surface 112 can reduce the resistance to water and reduce the wear of the patterned structure 111 on the clothes when the clothes rotate with the water flow, thus preventing the clothes from being scratched. Alternatively, only the second washing surface 113 can be formed as a curved surface. In this way, when the water flow direction on the surface of the drum 1 is from the second washing surface 113 to the first washing surface 112, the curved second washing surface 113 can reduce the resistance to water and facilitate the formation of a water film at the first washing surface 112 to separate the clothes from the drum 1, thereby reducing the wear of the patterned structure 111 on the clothes under this flow and preventing the clothes from being scratched. Alternatively, both the first washing surface 112 and the second washing surface 113 can be formed as curved surfaces. In this way, regardless of which of the first washing surface 112 and the second washing surface 113 is the water-facing surface, the resistance of the pattern structure 111 to water and the degree of wear and tear on the clothes can be reduced.

[0055] Optionally, the curved surface can be formed by bending the first rubbing surface 112 and / or the second rubbing surface 113 in the inward and outward directions of the cylinder 1, or by bending the first rubbing surface 112 and / or the second rubbing surface 113 in the circumferential direction of the cylinder 1. The curved surface can also be formed by bending the first rubbing surface 112 and / or the second rubbing surface 113 simultaneously in the inward and outward directions and the circumferential direction of the cylinder 1. The degree of curvature of the curved surface can be reasonably selected according to the actual situation.

[0056] In a specific example, the first scrubbing surface 112 can be bent simultaneously in the direction of the inner and outer sides of the cylinder 1 and in the direction of the water flow on the cylinder wall surface, and the second scrubbing surface 113 can be bent in the same direction as the first scrubbing surface 112. The degree of bending of the second scrubbing surface 113 can be greater than the degree of bending of the first scrubbing surface 112.

[0057] Further, refer to Figure 2 and Figure 6 At least one of the first scrubbing surface 112 and the second scrubbing surface 113 is formed in a crescent shape. Optionally, only the first scrubbing surface 112 may be formed in a crescent shape, only the second scrubbing surface 113 may be formed in a crescent shape, or both the first scrubbing surface 112 and the second scrubbing surface 113 may be formed in a crescent shape. In this way, when the water flows over the crescent-shaped surface, it is on the two wings of the crescent-shaped surface.

[0058] For example Figure 6As shown, both the first scrubbing surface 112 and the second scrubbing surface 113 are crescent-shaped. The first scrubbing surface 112 has a first contour line 1121 and a second contour line 1122 that are opposite each other in the circumferential direction of the cylinder. The two ends of the first contour line 1121 and the second contour line 1122 are connected along the axial direction of the cylinder. The radius of curvature of the first contour line 1121 is smaller than the radius of curvature of the second contour line 1122. The second scrubbing surface 113 has a third contour line 1131 and a fourth contour line 1132 that are opposite each other in the circumferential direction of the cylinder. The two ends of the third contour line 1131 and the fourth contour line 1132 are connected along the axial direction of the cylinder. The radius of curvature of the third contour line 1131 is smaller than the radius of curvature of the fourth contour line 1132. The second contour line 1122 and the third contour line 1131 coincide.

[0059] Therefore, the pattern structure 111 in this embodiment resembles a crescent dune in nature, with the first washing surface 112 resembling the windward side of the crescent dune and the second washing surface 113 resembling the leeward side. When water flows towards the first washing surface 112, which has a drag-reducing structure, a stable boundary layer, i.e., a water film, is formed, separating the clothes from the drum 1, thereby reducing wear on the clothes. When water flows over the second washing surface 113, the generated axial vortices and transverse vortices can increase the turbulence on the surface of the clothes. Using fine vortices to wash the clothes helps to improve the washing ratio.

[0060] According to some embodiments of the present invention, the included angle between the first scrubbing surface 112 and the reference surface 12 is α, and the value of α is in the range of 5-20°. For example, the value of α can be 5°, 7°, 10°, 12°, 15°, 18° or 20°, and the value of α can be reasonably selected according to actual needs; and / or, the included angle between the second scrubbing surface 113 and the reference surface 12 is β, and the value of β is in the range of 15-45°. For example, the value of β can be 15°, 20°, 25°, 30°, 40° or 45°. It is important to emphasize that the value of β is greater than the value of α. Therefore, taking the water flow direction on the surface of the drum 1 as an example, which is from the side of the first washing surface 112 to the side of the second washing surface 113, when the water flows through the first washing surface 112, the angle between the first washing surface 112 and the reference surface 12 is smaller than the angle between the second washing surface 113 and the reference surface 12. This allows the first washing surface 112 to reduce the resistance of the pattern structure 111 to the water flow and reduce the wear of the pattern structure 111 on the clothes. Meanwhile, the larger inclination of the second washing surface 113 can increase the vortex effect of the water flow at the rear edge and two wings of the second washing surface 113, thereby cleverly improving the washing performance of the washing machine and the washing ratio of the clothes.

[0061] According to some embodiments of the present invention, the included angle between the first washing surface 112 and the reference surface 12 is α, and the included angle between the second washing surface 113 and the reference surface 12 is β. The difference between β and α is in the range of 10-20°. In other words, the included angle β between the second washing surface 113 and the reference surface 12 is greater than the included angle α between the first washing surface 112 and the reference surface 12, and the difference between β and α is in the range of 10°-20°. For example, the difference between β and α can be 10°, 12°, 15°, 17° or 20°. The difference between β and α can be reasonably selected according to actual needs. Thus, when the water flow direction on the surface of the drum wall is from the side of the first washing surface 112 to the side of the second washing surface 113, the rear edge and two wings of the second washing surface 113 are prone to generate vortices, thereby increasing the turbulence on the surface of the clothes, which is beneficial to improving the washing ratio. At the same time, the structure is simple and easy to process.

[0062] According to some embodiments of the present invention, reference Figure 3 The length of the patterned structure 111 in the circumferential direction of the cylinder 1 is L. That is, the distance between the two furthest points of the patterned structure 111 along the circumferential direction of the cylinder 1 is L. The value of L can range from 10mm to 50mm. For example, L can be 10mm, 15mm, 25mm, 30mm, 38mm, 45mm, or 50mm. Here, the value of L should not be too large or too small. If the value of L is too small, for example, less than 10mm, it is easy for the protrusions 116 of the patterned structure 111 to be too small. In this case, it is not conducive to the patterned structure 111 turbulentizing the water flow or... The water flow creates a vortex effect, which reduces the washing ratio. In addition, if the size of the protrusion 116 is too small, it is difficult to process and the processing cost is high. On the other hand, if the value of L is too large, such as greater than 50mm, it is easy to make the overall protrusion 116 of the pattern structure 111 too large, which can easily increase the wear and tear on the clothes or even scratch them. In this embodiment, by setting the value of L to 10mm to 50mm, it is beneficial for the water flow to generate vortices near the pattern structure 111 to increase the turbulence on the surface of the clothes, thereby improving the washing ratio of the clothes. At the same time, it can also reduce the wear and tear on the clothes and reduce the difficulty of processing and manufacturing costs.

[0063] According to some embodiments of the present invention, reference Figure 2 and Figure 3The length of the pattern structure 111 in the circumferential direction of the cylinder 1 is L, and the width of the pattern structure 111 in the axial direction of the cylinder 1 is W. In other words, the distance between the two furthest points of the pattern structure 111 in the circumferential direction of the cylinder 1 is L, and the distance between the two furthest points of the pattern structure 111 in the axial direction of the cylinder 1 is W. The ratio of W to L ranges from 0.5 to 0.9. For example, the ratio of W to L can be 0.5, 0.6, 0.7, 0.8, or 0.9. That is to say, the minimum width of the pattern structure 111 is half of its length. This design ensures that the overall length and width ratio of the pattern structure 111 is moderate. Within this range, the vortex effect generated near the rear edge and wings of the second washing surface 113 near the pattern structure 111 is better, and the resistance coefficient to water flow can be reduced. When the water flows over the first washing surface 112, which is the water-facing surface, a stable boundary layer can be formed, which is conducive to the formation of a water film between the clothes and the tub wall, thereby reducing the wear and tear on the clothes. In addition, the moderate length and width ratio of the pattern structure 111 makes the pattern structure 111 crescent-shaped, which can enhance the aesthetics of the tub 1.

[0064] In some embodiments, reference Figure 3 The length of the pattern structure 111 in the circumferential direction of the drum body 1 is L, and the width of the first washing surface 112 in the circumferential direction of the drum body 1 is a. In other words, the distance between the two furthest points of the pattern structure 111 in the circumferential direction of the drum body 1 is L, and the furthest distance between the front and rear edges of the first washing surface 112 in the circumferential direction of the drum body 1 is a. The ratio of a to L ranges from 0.1 to 0.3. For example, the ratio of a to L can be 0.1, 0.15, 0.17, 0.2, 0.25, 0.28, or 0.3. The ratio of a to L can be reasonably selected according to the actual situation. This is beneficial for the water flow to form a water film when flowing through the first washing surface 112, using the water film to separate the clothes and the drum wall, thereby reducing the wear and tear on the clothes. At the same time, it can reduce the resistance of the first washing surface 112 to the water flow, thereby improving the washing effect of the clothes to a certain extent.

[0065] According to some embodiments of the present invention, reference Figure 3The length of the patterned structure 111 in the circumferential direction of the drum body 1 is L, and the width of the second washing surface 113 in the circumferential direction of the drum body 1 is b. In other words, the distance between the two furthest points of the patterned structure 111 in the circumferential direction of the drum body 1 is L, and the furthest distance between the front and rear edges of the second washing surface 113 in the circumferential direction of the drum body 1 is b. The ratio of b to L ranges from 0.05 to 0.3. For example, the ratio of b to L can be 0.05, 0.1, 0.15, 0.2, 0.25, or 0.3, and the ratio of b to L can be reasonably selected according to the actual situation. This facilitates the formation of vortices by the water flow near the rear edge and wings of the second washing surface 113, thereby increasing the turbulence on the surface of the clothes. Using fine vortices to wash the clothes helps to significantly improve the washing ratio.

[0066] According to some embodiments of the present invention, reference Figures 2-6 The pattern structure 111 has an axisymmetric structure, and the axis of the pattern structure 111 is parallel to the circumference of the cylinder 1. That is to say, the straight line containing the axis of symmetry of the pattern structure 111 is parallel to the circumferential direction of the cylinder 1. In this way, the vortex distribution on both sides of the axis of symmetry of the pattern structure 111 can be uniform, so that the intensity of the vortex near the rear edge and the two wings of the second scrubbing surface 113 is equal, thereby making the turbulence of water flow on the surface of the clothes equal, and making the cleaning effect of the clothes better.

[0067] For example Figure 2 As shown, when the drum 1 is in the unfolded state, the extension direction of the straight line containing the axis of symmetry of the pattern structure 111 is parallel to the length direction of the drum 1, that is, the axis of symmetry of the pattern structure 111 extends in the horizontal direction. The part of the pattern structure 111 on both sides of the axis of symmetry gradually increases in height and surface area in the direction towards the axis of symmetry, so that the pattern structure 111 as a whole forms a crescent shape. In this way, when the water flows through the first washing surface 112, a stable boundary layer can be formed, thereby forming a water film between the clothes and the drum wall. The water film is used to separate the clothes from the drum wall, reducing the wear of the clothes. When the water flows through the second washing surface 113, small eddies can be formed near the rear edge and the two wings of the second washing surface 113, increasing the turbulence on the surface of the clothes. The small eddies are used to wash the clothes, which helps to improve the washing ratio.

[0068] In some embodiments, reference Figure 6 and Figure 7The pattern structure 111 can be formed by the inward indentation of the peripheral wall of the cylinder 1, or the pattern structure 111 can be formed by both inward and outward indentation of the peripheral wall of the cylinder 1. The inward indentation of the peripheral wall of the cylinder 1 constitutes at least a portion of the protrusion 116. In other words, the protrusion 116 of the pattern structure 111 can be formed only by the inward indentation of the peripheral wall of the cylinder 1, or a portion of the protrusion 116 can be formed by the inward indentation of the peripheral wall of the cylinder 1, and the other portion of the protrusion 116 can be formed by the outward indentation of the peripheral wall of the cylinder 1. In this way, the structure is simple and easy to process and form. At the same time, it can ensure that the first rubbing surface 112 or the second rubbing surface 113 has sufficient space to form a certain inclination without increasing the length L of the pattern structure 111 along the circumferential direction of the cylinder 1.

[0069] Further, see Figure 7 The patterned structure 111 is formed by inward and outward concavity of the peripheral wall of the cylinder 1. The outer end of the first rubbing surface 112 is flush with the reference surface 12, and the outer end of the second rubbing surface 113 is located outside the reference surface 12. In other words, for example... Figure 7 As shown, the protrusion 116 formed by the first washing surface 112 and the second washing surface 113 is formed by the inward indentation of the peripheral wall of the drum body 1, and the recessed portion between the second washing surface 113 and the reference surface 12 is formed by the outward indentation of the peripheral wall of the drum body 1, so that the cross-section of the pattern structure 111 is wavy. Thus, by utilizing the recessed portion between the second washing surface 113 and the reference surface 12, without increasing the length L of the pattern structure 111 along the circumferential direction of the drum body 1, it is ensured that the first washing surface 112 or the second washing surface 113 has sufficient space to form a certain inclination, thereby further ensuring that the water flow forms a sufficiently strong vortex when flowing through the second washing surface 113, thereby increasing the turbulence on the surface of the clothes, using fine vortices to wash the clothes, and improving the washing ratio.

[0070] Furthermore, refer to Figure 6 and Figure 7The outer end of the second scrubbing surface 113 is connected to the reference surface 12 via a connecting surface 114. The connecting surface 114 extends obliquely, defining a recess 15 between the connecting surface 114 and the second scrubbing surface 113. In other words, the recess 15 between the second scrubbing surface 113 and the connecting surface 114 can be formed by the outward indentation of the peripheral wall of the cylinder 1. In this way, the recess 15 can ensure that the angle between the second scrubbing surface 113 and the reference surface 12 is greater than the angle between the first scrubbing surface 112 and the reference surface 12 without increasing the length L of the pattern structure 111 along the circumferential direction of the cylinder 1. This ensures the vortex effect formed near the second scrubbing surface 113, thereby improving the cleaning effect of the garment processing equipment. At the same time, it can also prevent the height of the protrusion 116 of the pattern structure 111 along the radial direction of the cylinder 1 from being too large when the recess 15 is not provided, in order to make the second scrubbing surface 113 have a sufficient inclination, which would lead to increased wear on the clothes and improve the user experience. In addition, by setting the recess 15, the structural strength of the cylinder 1 can be further increased, its resistance to deformation can be improved, and the service life of the cylinder 1 can be extended.

[0071] According to some embodiments of the present invention, the included angle between the connecting surface 114 and the reference surface 12 is smaller than the included angle between the first rubbing surface 112 and the reference surface 12. That is, the inclination of the connecting surface 114 is smaller than the inclination of the first rubbing surface 112. This facilitates reducing the distance between the outermost part of the connecting surface 114 along the radial direction of the drum 1 and the reference surface 12, thereby avoiding interference or collision between the outer edge of the connecting surface 114 and the outer drum due to the vibration of the washing drum 100 during the operation of the washing drum 100. This prevents damage to the washing drum 100 caused by collision and excessive noise from the clothing processing equipment, thereby improving the user experience while ensuring the washing effect.

[0072] According to some embodiments of the present invention, reference Figure 3The length of the pattern structure 111 in the circumferential direction of the cylinder 1 is L. The distance between the lowest point of the recess 15 and the reference surface 12 is H1. In other words, the distance between the two furthest points of the pattern structure 111 in the circumferential direction of the cylinder 1 is L. The distance between the outermost end of the connecting surface 114 in the radial direction of the cylinder 1 and the reference surface 12 is H1. The ratio of H1 to L ranges from 0.01 to 0.1. For example, the ratio of H1 to L can be 0.01, 0.03, 0.05, or 0.0. The ratio of H1 to L can be reasonably selected according to the actual situation, such as 7 or 0.1. This can prevent the outermost end of the connecting surface 114 from protruding too much from the reference surface 12 along the radial direction of the drum 1, which would cause interference and collision between the outer end of the connecting surface 114 and the outer drum due to the vibration of the washing drum 100 during operation. This can prevent damage to the washing drum 100 caused by collision and excessive noise from the clothing processing equipment, thereby improving the user experience while ensuring the washing effect.

[0073] According to some embodiments of the present invention, reference Figure 3 The length of the pattern structure 111 in the circumferential direction of the drum 1 is L, and the distance between the highest point of the protrusion 116 and the reference surface 12 is H2. In other words, the distance between the two furthest points of the pattern structure 111 in the circumferential direction of the drum 1 is L, and the distance between the innermost end of the protrusion 116 in the radial direction of the drum 1 and the reference surface 12 is H2. The ratio of H2 to L ranges from 0.01 to 0.1. For example, the ratio of H2 to L can be 0.01, 0.02, 0.04, 0.06, 0.08, or 0.1. The ratio of H2 to L can be reasonably selected according to the actual situation. Thus, it can be ensured that the height of the protrusion 116 is not too high, which would cause excessive wear on the clothes, and it can also be ensured that the water flow can form a sufficiently strong vortex after flowing through the second scrubbing surface 113. By acting on the surface of the clothes through small vortices, the turbulence on the surface of the clothes can be increased, thereby improving the washing ratio of the clothes.

[0074] According to some embodiments of the present invention, the orientation of a portion of the multiple patterned structures 111 is opposite to that of another portion of the patterned structures 111. Specifically, taking the cylinder 1 in its unfolded state as an example, the length direction of the cylinder 1 in its unfolded state corresponds to the circumferential direction of the cylinder 1 in its formed state. One end of the cylinder 1 along its length direction is defined as the left end, and the other end as the right end. Here, the orientation of a portion of the multiple patterned structures 111 being opposite to that of another portion of the patterned structures 111 means that the first rubbing surface 112 of a portion of the patterned structures 111 is on the left side of the second rubbing surface 113, while the first rubbing surface 112 of the other portion of the patterned structures 111 is on the right side of the second rubbing surface 113. Therefore, regardless of whether the washing drum 100 rotates forward or backward during operation, the inner wall of the drum 1 always has a part of the patterned structure 111 that can ensure that when the water flows to the first scrubbing surface 112, a stable boundary layer is formed, forming a water film to separate the clothes from the drum 1, reducing the wear and tear on the clothes during the washing process. Furthermore, when the water flows through the second scrubbing surface 113, axial vortices and transverse vortices can be generated near the second scrubbing surface 113. The vortices can increase the turbulence on the surface of the clothes, and the use of fine vortices to rinse the clothes is beneficial to improving the washing ratio.

[0075] In some embodiments, each basic unit 13 includes a complete pattern structure 111 located approximately in the center of the basic unit 13. The periphery of the basic unit 13 is also provided with multiple incomplete pattern structures 111. The basic unit 13 can be formed into a rectangle. The incomplete pattern structure 111 located on the left side edge of the basic unit 13 can be combined with the incomplete pattern structure 111 located on the right side edge of the basic unit 13 to form a complete pattern structure 111. Similarly, the incomplete pattern structure 111 located on the lower side edge of the basic unit 13 can be combined with the incomplete pattern structure 111 located on the upper side edge of the basic unit 13 to form a complete pattern structure 111. Thus, by sequentially combining multiple identical basic units 13, a patterned area 11 with multiple complete pattern structures 111 can be formed, which is convenient for processing.

[0076] Optionally, the present invention is not limited thereto. Each basic unit 13 may also contain multiple complete pattern structures 111, such as three, four, five or more. The number of complete pattern structures 111 in each basic unit 13 can be reasonably designed according to the design size of the basic unit 13, the size of the pattern structure 111, and the ease of processing.

[0077] Furthermore, in the above embodiments, the basic unit 13 has only one shape, and each basic unit 13 is formed as a square. All basic units 13 have the same shape, so that multiple basic units 13 can be combined to form a square with a larger area. Of course, the present invention is not limited to this. The shape of the basic unit 13 can also be other irregular or irregular shapes. In this case, the patterned area 11 can have at least two different shapes of basic units 13 at the same time. It is only necessary to ensure that the two or more shapes of basic units 13 can be combined to form a square.

[0078] According to some embodiments of the present invention, reference Figure 3 The length of the pattern structure 111 in the circumferential direction of the cylinder 1 is L, and the length of the basic unit 13 in the circumferential direction of the cylinder 1 is A. In other words, the distance between the two furthest points of the pattern structure 111 in the circumferential direction of the cylinder 1 is L, and the length of the basic unit 13 when the cylinder 1 is in the unfolded state is A. The ratio of A to L ranges from 1.4 to 3. For example, the ratio of A to L can be 1.4, 1.5, 1.8, 2, 2.5, or 3. The ratio of A to L can be reasonably selected according to the actual situation. In this way, it can be ensured that there is at least one complete pattern structure 111 in each basic unit 13, and the arrangement density of the pattern structure 111 in the pattern area 11 is moderate. This prevents the washing drum 100 mold from being difficult to process due to the excessive arrangement density of the pattern structure 111, and also avoids the deformation resistance of the cylinder 1 itself being weakened due to the excessively small arrangement density of the pattern structure 111.

[0079] According to some embodiments of the present invention, reference Figure 3 The width of the pattern structure 111 in the axial direction of the cylinder 1 is W, and the width of the basic unit 13 in the axial direction of the cylinder 1 is B. In other words, the distance between the two furthest points of the pattern structure 111 in the axial direction of the cylinder 1 is W, and the width of the basic unit 13 in the axial direction of the cylinder 1 is B. The ratio of B to W ranges from 2.8 to 5. For example, the ratio of B to W can be 2.8, 3, 3.5, 4, 4.5, or 5. The ratio of B to W can be reasonably selected according to the actual situation to ensure that there is at least one complete pattern structure 111 in each basic unit 13, and that the arrangement density of the pattern structure 111 in the patterned area 11 is moderate. This prevents the washing drum 100 mold from being difficult to process due to excessive arrangement density of the pattern structure 111, and also avoids the cylinder 1 itself from being weakened by excessively low arrangement density of the pattern structure 111.

[0080] According to some embodiments of the present invention, reference Figure 3The length of the pattern structure 111 in the circumferential direction of the cylinder 1 is L, and the distance between the same end of two adjacent pattern structures 111 in the circumferential direction is C. The ratio of C to L ranges from 0.4 to 1.5. For example, the ratio of C to L can be 0.4, 0.5, 0.7, 1, 1.2, 1.4 or 1.5. The ratio of C to L can be reasonably selected according to the actual situation.

[0081] For example Figures 2-5 As shown, the pattern structure 111 can be divided into multiple groups. The multiple groups of pattern structures 111 are arranged in the axial direction of the cylinder 1. The pattern structures 111 in two adjacent groups of pattern structures 111 in the axial direction are staggered in a projection plane perpendicular to the axis of the cylinder 1. In other words, in the projection plane perpendicular to the axis of the cylinder 1, any pattern structure 111 in the upper pattern structure group is located between two adjacent pattern structures 111 in the lower pattern structure group, or partially overlaps with two adjacent pattern structures 111 in the lower pattern structure group. Similarly, any pattern structure 111 in the lower pattern structure group is located between two adjacent pattern structures 111 in the upper pattern structure group, or partially overlaps with two adjacent pattern structures 111 in the upper pattern structure group. Here, the pattern structure group located on the upper side and the pattern structure group located on the lower side refer to the relative positions of any two adjacent pattern structure groups relative to each other in the axial direction of the cylinder 1 when the cylinder is placed vertically.

[0082] In addition, refer to Figure 3 It should be noted that in this embodiment, the two adjacent pattern structures 111 with a distance C between the same ends in the circumferential direction of the cylinder 1 do not refer to two pattern structures 111 that are adjacent in the circumferential direction at the same height of the cylinder 1. Since when the ratio of C to L is in the range of 0.4-1, two adjacent pattern structures 111 at the same height of the cylinder 1 will partially overlap, thereby causing the pattern structure 111 to lose its turbulence function. Therefore, the two adjacent pattern structures 111 here refer to two pattern structures 111 that are adjacent in the axial direction of the cylinder 1 and intersect each other in the circumferential direction.

[0083] According to some embodiments of the present invention, the minimum spacing between two adjacent patterned structures 111 is s, where s satisfies: s > 3 mm. For example, the value of s can be 3.5 mm, 4 mm, 4.5 mm, or 5 mm. The value of s can be reasonably selected according to actual needs. This can prevent the patterned structures 111 from being too densely arranged due to the value of s being too small, which would make it difficult to process the mold of the washing drum 100, and also prevent the flow fields of adjacent patterned structures 111 from overlapping and influencing each other, thereby affecting the influence of eddies on the washing effect. Optionally, the value of s should not be too large either. When the value of s is too large, the arrangement of the patterned structures 111 is too sparse, which will weaken the structural strength and deformation resistance of the drum 1, and will also lead to a decrease in the washing effect of the washing drum 100.

[0084] According to some embodiments of the present invention, reference Figures 1-6 The cylinder body 1 can also have dehydration holes 14 formed on it. The dehydration holes 14 can penetrate the cylinder body 1 along its thickness direction. The diameter of the dehydration holes 14 is d, and the value of d ranges from 1.5 to 3 mm. For example, the value of d can be 1.5 mm, 1.8 mm, 2 mm, 2.5 mm, or 3 mm. The value of d can be reasonably selected according to actual needs. Therefore, it can prevent the drainage from being difficult and the drainage efficiency from being reduced when the diameter of the dehydration holes 14 is too small, such as less than 1.5 mm. It can also avoid the clothing from being easily embedded in the dehydration holes 14 when the diameter of the dehydration holes 14 is too large, such as greater than 3 mm, which would aggravate wear or even damage.

[0085] According to some embodiments of the present invention, reference Figure 3 The spacing between the dewatering holes 14 is D, where D > 10mm. For example, the spacing D between the dewatering holes 14 can be 11mm, 12mm, 13mm, 14mm, or larger. This prevents the drilling tools from being placed too close together during processing due to excessively small spacing between the dewatering holes 14. Understandably, the spacing between the dewatering holes 14 should also not be too large, as this would reduce the number of dewatering holes 14 and consequently decrease the drainage efficiency during dewatering.

[0086] Further, refer to Figure 2 , Figure 4 as well as Figure 6The dehydration hole 14 can be formed on the reference surface 12, and / or the dehydration hole 14 can be formed on the connecting surface 114. That is, the dehydration hole 14 can be formed only on the reference surface 12, or only on the connecting surface 114, or a portion of the dehydration hole 14 can be formed on the reference surface 12 and another portion of the dehydration hole 14 can be formed on the connecting surface 114. In this way, the dehydration hole 14 is formed on a flat or concave surface, which can prevent clothes from getting stuck in the dehydration hole 14 when the dehydration hole 14 is formed on the first washing surface 112 or the second washing surface 113 of the protrusion 116, thereby increasing the wear and tear on the clothes.

[0087] In some embodiments, reference Figure 1 , Figure 2 and Figure 4 All pattern structures 111 within the pattern area 11 can be divided into multiple groups. Multiple groups of pattern structures 111 can be arranged in the axial direction of the drum body 1. Each group can include multiple pattern structures 111 arranged in the circumferential direction of the drum body 1. This can make full use of the inner wall space of the drum body 1 and help improve the washing ratio of clothes.

[0088] Further, refer to Figure 4 and Figure 5 At least some adjacent sets of patterned structures 111 are oriented in opposite directions. Therefore, regardless of whether the washing drum 100 rotates clockwise or counterclockwise, a portion of the patterned structure 111 on the inner wall of the drum 1 will always form a stable boundary layer when water flows towards the first washing surface 112. This forms a water film to separate the clothes from the drum 1, reducing wear and tear on the clothes during washing. Furthermore, when water flows through the second washing surface 113, axial vortices and transverse counter-vortices can be generated near the second washing surface 113. These vortices increase the turbulence on the surface of the clothes, and the use of fine eddies to wash the clothes helps improve the washing ratio.

[0089] refer to Figure 4 Taking the cylinder 1 with four pattern structure groups as an example, the four pattern structure groups include: a first group, a second group, a third group, and a fourth group arranged sequentially from bottom to top along the axial direction. In the first group, all pattern structures 111 have the same orientation and the first rubbing surface 112 is located to the left of the second rubbing surface 113. In the second group, all pattern structures 111 have the same orientation and the rubbing surface is located to the right of the second rubbing surface 113. In the third group, all pattern structures 111 are arranged in the same direction as all pattern structures 111 in the first group. In the fourth group, all pattern structures 111 are arranged in the same direction as all pattern structures 111 in the second group.

[0090] Of course, the present invention is not limited to this. It can also be that all the pattern structures 111 in the first and second groups have the same orientation and the first rubbing surface 112 is located to the left of the second rubbing surface 113, and all the pattern structures 111 in the third and fourth groups have the same orientation and the first rubbing surface 112 is located to the right of the second rubbing surface 113.

[0091] According to a specific example of the present invention, reference is made to Figures 2-5 In the axial direction of the drum body 1, two adjacent sets of patterned structures 111 are staggered. Specifically, in the projection plane perpendicular to the axis of the drum body 1, any one of the patterned structures 111 in the upper patterned structure group is located between two adjacent patterned structures 111 in the lower patterned structure group, or partially overlaps with two adjacent patterned structures 111 in the lower patterned structure group; similarly, any one of the patterned structures 111 in the lower patterned structure group is located between two adjacent patterned structures 111 in the upper patterned structure group, or partially overlaps with two adjacent patterned structures 111 in the upper patterned structure group. This helps to improve the space utilization rate of the inner wall of the drum body 1, thereby maximizing the washing ratio of clothes and improving the washing effect without affecting the vortex effect generated by the patterned structures 111.

[0092] Furthermore, it should be noted that the dimensions mentioned above, such as the length L of the pattern structure 111 in the circumferential direction of the cylinder, the width W of the pattern structure 111 in the axial direction of the cylinder, the width a of the first rubbing surface 112 in the circumferential direction of the cylinder, the width b of the second rubbing surface 113 in the circumferential direction of the cylinder, the length A of the basic unit 13 in the circumferential direction of the cylinder, the width B of the basic unit 13 in the axial direction of the cylinder, the distance C between the same end of two adjacent pattern structures 111 in the circumferential direction, the minimum spacing s between two adjacent pattern structures 111, the diameter d of the dewatering hole 14, and the spacing D between the dewatering holes 14, are all dimensions with reference to the reference surface of the cylinder in the unfolded state.

[0093] The following describes a garment processing apparatus according to a second aspect of the present invention.

[0094] The garment processing apparatus according to a second aspect of the present invention includes: a washing drum 100 according to the above embodiments of the present invention.

[0095] According to the clothing processing equipment of the present invention, by setting the washing drum 100 in the above embodiment, on the one hand, the wear and tear on clothing can be reduced during the washing process, and on the other hand, the washing ratio of clothing can be improved, resulting in better cleaning effect.

[0096] It should be noted that, by using the clothing processing equipment according to this embodiment to conduct washing tests on clothing under loads of 1kg, 2.5kg and 5kg respectively, it can be found that the clothing processing equipment of this embodiment improves the washing efficiency by 1% to 3% and reduces the wear rate by 10% to 20% compared with the washing machine in the related art.

[0097] Other components of the garment processing apparatus according to embodiments of the present invention, such as the outer cylinder, drive motor, and control unit, as well as its operation, are known to those skilled in the art and will not be described in detail here.

[0098] In the description of this invention, it should be understood that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0099] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0100] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0101] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0102] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A washing drum, characterized in that, include: A cylindrical body, the inner peripheral wall of which includes a patterned area, the patterned area forming a plurality of patterned structures, each patterned structure including an inwardly protruding protrusion, the protrusion having a first rubbing surface and a second rubbing surface disposed opposite each other in the circumferential direction of the cylindrical body, the first rubbing surface and the second rubbing surface extending obliquely toward each other in the direction from the outside to the inside, the angle between the first rubbing surface and a reference plane being smaller than the angle between the second rubbing surface and the reference plane, the reference plane being the plane where the area of ​​the inner peripheral wall of the cylindrical body without the patterned structure is located when the cylindrical body is in the unfolded state; At least one of the first scrubbing surface and the second scrubbing surface is formed as a curved surface; The first scrubbing surface has a first contour line and a second contour line that are opposite each other in the circumferential direction of the cylinder. The first contour line and the second contour line are connected at both ends along the axial direction of the cylinder, and the radius of curvature of the first contour line is smaller than the radius of curvature of the second contour line. The second scrubbing surface has a third contour line and a fourth contour line opposite to each other in the circumferential direction of the cylinder body. The third contour line and the fourth contour line are connected at both ends along the axial direction of the cylinder body, and the radius of curvature of the third contour line is smaller than the radius of curvature of the fourth contour line. The second contour line and the third contour line coincide.

2. The washing drum according to claim 1, characterized in that, Both the first and second scrubbing surfaces are bent in the circumferential direction of the cylinder to form the curved surface, and the bending directions of the first and second scrubbing surfaces are the same.

3. The washing drum according to claim 1, characterized in that, At least one of the first scrubbing surface and the second scrubbing surface is formed in a crescent shape.

4. The washing drum according to claim 3, characterized in that, The pattern structure is axially symmetrical, with the axial direction of the pattern structure parallel to the circumference of the cylinder. Both the first and second rubbing surfaces are symmetrical about the axial direction of the pattern structure.

5. The washing drum according to claim 1, characterized in that, The angle between the first scrubbing surface and the reference surface is α, and the value of α ranges from 5 to 20°; and / or, the angle between the second scrubbing surface and the reference surface is β, and the value of β ranges from 15 to 45°.

6. The washing drum according to claim 1, characterized in that, The angle between the first scrubbing surface and the reference surface is α, and the angle between the second scrubbing surface and the reference surface is β. The difference between β and α is in the range of 10-20°.

7. The washing drum according to claim 1, characterized in that, The length of the pattern structure in the circumferential direction of the cylinder is L, and the value of L ranges from 10mm to 50mm.

8. The washing drum according to claim 1, characterized in that, The length of the patterned structure in the circumferential direction of the cylinder is L, and the width of the patterned structure in the axial direction of the cylinder is W. The ratio of W to L is in the range of 0.5 to 0.

9.

9. The washing drum according to claim 1, characterized in that, The length of the patterned structure in the circumferential direction of the cylinder is L, and the width of the first scrubbing surface in the circumferential direction of the cylinder is a, wherein the ratio of a to L is in the range of 0.1 to 0.

3.

10. The washing drum according to claim 1, characterized in that, The length of the patterned structure in the circumferential direction of the cylinder is L, and the width of the second scrubbing surface in the circumferential direction of the cylinder is b, wherein the ratio of b to L is in the range of 0.05 to 0.

3.

11. The washing drum according to claim 1, characterized in that, The pattern structure is axially symmetrical, and the axial direction of the pattern structure is parallel to the circumference of the cylinder.

12. The washing drum according to any one of claims 1-11, characterized in that, The pattern structure is formed by the inward indentation of the peripheral wall of the cylinder, or the pattern structure is formed by both the inward and outward indentation of the peripheral wall of the cylinder, wherein the inward indentation of the peripheral wall of the cylinder constitutes at least a portion of the protrusion.

13. The washing drum according to claim 12, characterized in that, The pattern structure is formed by the inward and outward concavity of the peripheral wall of the cylinder. The outer end of the first rubbing surface is flush with the reference surface, and the outer end of the second rubbing surface is located outside the reference surface.

14. The washing drum according to claim 13, characterized in that, The outer end of the second scrubbing surface is connected to the reference surface by an inclined connecting surface, and a recess is defined between the connecting surface and the second scrubbing surface.

15. The washing drum according to claim 14, characterized in that, The cylinder has a dewatering hole that penetrates the cylinder along its thickness direction. The dewatering hole is formed on the reference surface and / or on the connecting surface.

16. The washing drum according to claim 14, characterized in that, The angle between the connecting surface and the reference surface is smaller than the angle between the first scrubbing surface and the reference surface.

17. The washing drum according to claim 14, characterized in that, The length of the pattern structure in the circumferential direction of the cylinder is L, the distance between the lowest point of the pit and the reference surface is H1, and the ratio of H1 to L is in the range of 0.01 to 0.

1.

18. The washing drum according to claim 14, characterized in that, The length of the pattern structure in the circumferential direction of the cylinder is L, the distance between the highest point of the protrusion and the reference surface is H2, and the ratio of H2 to L is in the range of 0.01 to 0.

1.

19. A garment processing device, characterized in that, include: The washing drum according to any one of claims 1-18.

Images