Drum and clothes treating apparatus

Abstract

The utility model provides a roller and clothes processing equipment, which can better adjust the eccentricity of clothes, shake the clothes to be scattered and improve the clothes cleaning effect. The drum includes: an inner drum having a loading port at one end in an axial direction and a bottom wall at the other end; and the convex rib group is arranged on the bottom wall of the inner cylinder, protrudes towards the direction close to the loading port, and is in a rotationally symmetrical shape taking the axis of the inner cylinder as a central axis. The convex rib set comprises a plurality of convex ribs, and the front side and the rear side of each convex rib in the rotating direction of the inner cylinder are provided with a first side wall and a second side wall correspondingly. The first side wall forms a first inclination angle relative to the bottom wall of the inner cylinder, the second side wall forms a second inclination angle relative to the bottom wall of the inner cylinder, and the first inclination angle is not equal to the second inclination angle.

Description

Technical Field

[0001] This utility model relates to drum washing equipment, specifically a drum and clothing processing equipment. Background Technology

[0002] In the prior art, the roller divides the bottom surface of the inner cylinder into three regions of the same shape by three interconnected ribs, and the ribs are axially symmetrical.

[0003] When washing clothes, the water flow caused by the ribs is the same whether the inner drum rotates clockwise or counterclockwise, resulting in poor water flow through the clothes during washing. Similarly, during spin-drying, the effect of the inner drum adjusting the clothes' eccentricity is the same whether it rotates clockwise or counterclockwise, resulting in poor shaking and adjustment of the clothes' eccentricity. Utility Model Content

[0004] To address the above problems, this utility model provides a drum and a garment processing device that can solve the problems of inefficiently adjusting garment eccentricity and poor garment cleaning effect during drum washing.

[0005] The first aspect of this utility model provides a roller applied to a garment processing device. The roller includes an inner cylinder and a rib assembly. The inner cylinder has a loading port at one end along its axial direction and a bottom wall at the other end. The rib assembly is disposed on the bottom wall of the inner cylinder and protrudes towards the loading port. The rib assembly has a rotationally symmetrical shape about the axis of the inner cylinder. The rib assembly includes multiple ribs. Each rib has a first sidewall and a second sidewall on its front and rear sides along the rotation direction of the inner cylinder, respectively. The first sidewall forms a first inclination angle relative to the bottom wall of the inner cylinder, and the second sidewall forms a second inclination angle relative to the bottom wall of the inner cylinder. The first and second inclination angles are not equal.

[0006] By setting the first and second tilt angles of the ribs to be unequal, the inner drum rotates in both directions during washing, causing the water to pass through the clothes at different angles, resulting in different water flow patterns and thus optimizing the washing effect. During spin-drying, the inner drum's rotation also improves the efficiency of adjusting the clothes' eccentricity, allowing them to be shaken out more quickly.

[0007] Optionally, the first sidewall is an arc surface with a first inclination angle that changes radially outward from small to large, and the second sidewall is an arc surface with a second inclination angle that changes radially outward from large to small. The range of change of the first inclination angle is different from the range of change of the second inclination angle.

[0008] By using the above method, the first and second sidewalls of the rib are set as arc surfaces with gradually changing angles and different ranges of change, which can better adapt to changes in water flow during washing and reduce the impact of water flow.

[0009] Optionally, the adjacent first and second sidewalls of two adjacent ribs are connected as one unit with a smooth arc transition. This improves the water flow guidance of the ribs and reduces the water resistance during mixing.

[0010] Optionally, the projected area of ​​the first sidewall of the rib on the bottom wall of the inner drum is the first projected area, and the projected area of ​​the second sidewall on the bottom wall of the inner drum is the second projected area. The sum of the first and second projected areas of each rib is equal. By setting the sum of the projected areas of the first and second sidewalls of each rib on the bottom wall to be the same, the stability of the inner drum during washing clothes can be improved.

[0011] Optionally, the radial outer edge of the rib assembly is connected to the inner wall of the inner tubing. By connecting the ends of the rib assembly to the inner tubing in this way, the contact area with the clothing can be increased, thus improving the shaking effect.

[0012] Optionally, the rib assembly also includes a central protrusion, which is positioned corresponding to the center of the bottom wall of the inner cylinder, and multiple ribs are interconnected through the central protrusion. In this way, the central protrusion can support multiple ribs, which helps ensure the stability of the rib assembly structure.

[0013] Optionally, the raised ribs divide the bottom wall of the inner drum into at least two water outlet zones, each with a water outlet hole. This allows wastewater from washing clothes to drain through the outlet holes, preventing wastewater from remaining inside the inner drum.

[0014] Optionally, the roller further includes lifting ribs disposed on the inner sidewall of the inner cylinder. Each lifting rib includes a guide surface and a lifting surface. The guide surface has a first side disposed on the inner sidewall and a second side protruding from the end of the first side in a direction away from the inner sidewall. At least a portion of the second side is spaced from the first side at a distance that gradually decreases from one end of the lifting rib towards the other. The lifting surface has the second side and a third side protruding further away from the inner sidewall than the second side.

[0015] By setting a guide surface with a distance that gradually decreases from one end to the other, the lifting ribs can push the clothes along the front and back direction while the inner drum rolls. After the clothes are pushed to the other end, the lifting surface at the other end, which is higher than the guide surface in the height direction, allows the clothes to continue to be lifted at the other end under the action of the lifting surface, so as to drop the clothes from a higher height, thereby achieving a better tumbling effect and improving the washing effect.

[0016] A second aspect of this utility model also provides a garment processing device having the roller described above.

[0017] Optionally, the loading port of the roller is positioned facing the front of the garment handling equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the first structure of the roller in this embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the second structure of the roller in an embodiment of the present utility model.

[0020] Figure 3 This is a schematic diagram of the lifting rib structure in an embodiment of the present utility model.

[0021] Figure label:

[0022] 100. Drum; 10. Inner cylinder; 11. Bottom wall; 12. Loading port; 20. Rib group; 21. Rib; 211. First side wall; 212. Second side wall; 22. Central protrusion; 30. Water outlet area; 31. Water outlet hole; 40. Lifting rib; 41. Guide surface; 42. Lifting surface; 43. First side; 44. Second side; 45. Third side; 46. Spray hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] It should be noted that, in this embodiment of the invention, during washing, the inner drum rotates clockwise and counterclockwise. In other embodiments, the directions of clockwise and counterclockwise rotation of the inner drum may be opposite to those in this embodiment of the invention; therefore, this invention does not limit the directions of clockwise and counterclockwise rotation of the inner drum.

[0025] <Equipment Composition>

[0026] Figure 1 This is a first structural schematic diagram of the roller 100 in this embodiment of the utility model. Figure 2 This is a schematic diagram of the second structure of the roller 100 in an embodiment of this utility model. (Reference) Figure 1 and Figure 2 The drum 100 provided in this embodiment includes an inner drum 10, an outer drum (not shown in the figure), and a rib assembly 20, and the drum 100 is applied to a garment processing device. The inner drum 10 is a chamber that directly holds the clothes. The inner drum 10 is housed in the outer drum. When the garment processing device is a drum-type washing machine, the outer drum is a water tank. When the garment processing device is a drum-type dryer, the outer drum is used for hot air circulation and water collection.

[0027] The following description uses a drum-type washing machine as the clothing processing device. The drum 100 provided in some embodiments of this invention can also be applied to a drum-type dryer; this invention does not limit its application in this regard.

[0028] The inner drum 10 has a loading port 12 at one end along its own axis and a bottom wall 11 at the other end. Between the bottom wall 11 and the loading port 12 is a washing chamber (not shown) for accommodating clothes and water. Clothes are placed into the washing chamber through the loading port 12. A rib assembly 20 is provided on the bottom wall 11 and protrudes towards the loading port 12, allowing the rib assembly 20 to contact the clothes and water in the washing chamber. The rib assembly 20 has a rotationally symmetrical shape about the axis of the inner drum 10, allowing the clothes to be shaken and washed by the rib assembly 20 during washing as the inner drum 10 rotates.

[0029] The structure of each component of the roller 100 in this embodiment will be described below.

[0030] <Rib Group 20>

[0031] Continue to refer to Figure 1 The rib group 20 may include three ribs 21a, 21b, and 21c that are rotationally symmetrically arranged and evenly distributed. When the inner cylinder 10 rotates clockwise, the ribs 21 have a first sidewall 211 and a second sidewall 212 on their front and rear sides along the rotation direction of the inner cylinder 10, respectively. The first sidewall 211 forms a first inclination angle relative to the bottom wall 11 of the inner cylinder 10, and the second sidewall 212 forms a second inclination angle relative to the bottom wall 11 of the inner cylinder 10. The first inclination angle and the second inclination angle are not equal.

[0032] Specifically, in this embodiment, the adjacent sidewalls of two adjacent ribs 21 are connected. That is, the first sidewall 211 of rib 21a is connected to the second sidewall 212 of rib 21b and transitions smoothly; the first sidewall 211 of rib 21b is connected to the second sidewall 212 of rib 21c and transitions smoothly; and the first sidewall 211 of rib 21c is connected to the second sidewall 212 of rib 21a and transitions smoothly. The first inclination angle of the first sidewall 211 covers the inclination angle range of [n, l], and the second inclination angle of the second sidewall 212 covers the inclination angle range of [m, n], where m <n<l。

[0033] In some embodiments, the number of ribs 21 may be two, four, etc., and the present invention does not limit the number of ribs 21.

[0034] In this way, during washing, the inner drum 10 rotates in both directions, causing the water flowing through the first side wall 211 and the second side wall 212 to pass through the clothes at different angles for washing. This results in different water flow changes, thereby optimizing the washing effect of the clothes. During spin-drying, the inner drum 10 rotates in both directions, and the clothes are adjusted back and forth at different angles via the first side wall 211 and the second side wall 212. This improves the efficiency of adjusting the clothes to their center of gravity, thus allowing the clothes to be shaken out more quickly.

[0035] Continue to refer to Figure 1 Both the first sidewall 211 and the second sidewall 212 are curved surfaces. The size of the curve of the first sidewall 211 varies accordingly with the first inclination angle, which increases radially outward. The size of the curve of the second sidewall 212 varies accordingly with the second inclination angle, which decreases radially outward. The first inclination angle of the first sidewall 211 is generally larger than the second inclination angle of the second sidewall 212, meaning the first sidewall 211 has a steeper overall slope, while the second sidewall 212 has a gentler overall slope. In the curved surfaces formed by the smooth transition between the first sidewall 211 and the second sidewall 212, the inclination angle relative to the bottom wall 11 gradually decreases.

[0036] By using the above method, the first sidewall 211 and the second sidewall 212 of the rib 21 are set as arc surfaces with gradually changing angles and different ranges of change. When water flows through the first sidewall 211 and the second sidewall 212 during washing, the rib 21 can better adapt to the changes in water flow and reduce the impact force of water flow.

[0037] The adjacent first sidewalls 211 and second sidewalls 212 of two adjacent ribs 21 are connected as one unit with a smooth arc transition. Water can flow smoothly between the first sidewalls 211 and second sidewalls 212 in both forward and reverse directions. In this way, the water flow guidance of the ribs 21 can be improved and the water resistance of the stirring can be reduced.

[0038] In the rib group 20, all the ribs 21 have the same shape and rotate to coincide with the center of the drum 100. The projected area of ​​the first sidewall 211 of the rib 21 on the bottom wall 11 of the inner drum 10 is the first projected area, and the projected area of ​​the second sidewall 212 on the bottom wall 11 of the inner drum 10 is the second projected area. The sum of the first projected area and the second projected area of ​​each rib 21 is equal. By setting the sum of the projected areas of the first sidewall 211 and the second sidewall 212 of each rib 21 on the bottom wall 11 to be the same, the stability of the inner drum 10 during washing clothes can be improved.

[0039] In this embodiment, the radial outer edge of the rib assembly 20 is connected to the inner wall of the inner cylinder 10. By connecting the end of the rib assembly 20 to the inner cylinder 10 in this way, the contact area with the clothes can be increased, further improving the shaking effect of the clothes.

[0040] In the rib group 20, the three ribs 21 are interconnected by a central protrusion 22. The central protrusion 22 is located at the center of the bottom wall 11 of the inner cylinder 10. The multiple ribs 21 and the central protrusion 22 can be independent structures connected to each other, or they can be arranged as follows: Figure 1 As shown, they are formed as a single unit. The central protrusion 22 and the rib group 20 can have the same height along the axis of the inner cylinder 10. In this way, the central protrusion 22 can support multiple ribs 21, which helps to ensure the stability of the rib group 20 structure.

[0041] The raised ribs 20 divide the bottom wall 11 of the inner drum 10 into three water outlet zones 30. Each water outlet zone 30 is provided with a water outlet 31. There can be multiple water outlets 31, which can be arranged in a fan-shaped area along the radial outward direction of the bottom wall 11 and the rotation direction of the inner drum 10. In this way, the wastewater after washing clothes can be discharged from the water outlets 31 of the water outlet zone 30, avoiding the retention of wastewater in the inner drum 10.

[0042] It should be noted that the number of raised ribs 21 differs from that in the embodiments of this utility model, and therefore the number of water outlet zones 30 can also be different. In some embodiments, when there are two raised ribs 21, there can be two water outlet zones 30; when there are four raised ribs 21, there can be four water outlet zones 30. This utility model does not limit the number of water outlet zones 30.

[0043] <Lifting Rib 40>

[0044] Figure 3 This is a structural schematic diagram of the lifting rib 40 in an embodiment of this utility model. Combined with... Figure 1 and Figure 2 and refer to Figure 3 The roller 100 also includes lifting ribs 40. Multiple lifting ribs 40 are arranged in a rotationally symmetrical manner on the inner side wall of the inner cylinder 10, and the lifting ribs 40 are spaced apart from each other in the axial direction of the inner cylinder 10 relative to the bottom wall 11 of the inner cylinder 10.

[0045] Specifically, the lifting rib 40 includes a guide surface 41 and a lifting surface 42. The guide surface 41 has a first side 43 disposed on the inner wall of the inner cylinder 10 and a second side 44 protruding from the end of the first side 43 in a direction away from the inner wall. The distance between the second side 44 and the first side 43 is formed in such a way that it gradually decreases from one end of the lifting rib 40 towards the other end. The lifting surface 42 has the second side 44 and a third side 45 protruding further away from the inner wall than the second side 44.

[0046] The lifting rib 40 is strip-shaped. For ease of explanation, the bottom surface of the lifting rib 40 is taken as the horizontal plane, and the direction is defined and explained based on the horizontal placement of the lifting rib 40 as its natural placement state.

[0047] The "one end" and "other end" mentioned above specifically refer to one end and the other end of the lifting rib 40 along its length (i.e., the front-to-back direction of the inner cylinder 10). The first side 43 is also formed as the edge of the bottom surface of the lifting rib 40. The second side 44 protrudes from the end of the first side 43 in a direction away from the inner wall (i.e., the height direction when the lifting rib 40 is placed horizontally). That is, the second side 44 protrudes in the height direction away from the inner wall. At the same time, since the distance between the second side 44 and the first side 43 is formed in a manner that gradually decreases from one end of the lifting rib 40 to the other end, the guide surface 41 is also formed in a shape that decreases from high to low and from wide to narrow from one end to the other end, thereby realizing the shape of the guide surface 41 from one end to the other end. The other end (the front-back direction of the inner drum 10) pushes the clothes; when the clothes are pushed to the other end, the clothes at least partially transition / move to the lifting surface 42 that connects with the guide surface 41. Since the lifting surface 42 is defined by the second side 44 and the third side 45 that protrudes further away from the inner wall than the second side 44, at least at the other end of the lifting rib 40, the lifting surface 42 is higher than the guide surface 41 in the height direction. This design allows the clothes pushed to the other end of the lifting rib 40 to continue to be lifted upward with the rolling of the inner drum 10 under the action of the lifting surface 42. While realizing the front-back movement of the clothes, the lifting height of the clothes is guaranteed, thus improving the washing effect.

[0048] Optionally, the lifting surface 42 can also be configured such that each part is higher than the guide surface 41; or, at the position corresponding to the relatively low point (e.g., the end) of the guide surface 41, it is higher than the guide surface 41, and at other positions it is not lower than the guide surface 41; the height of the lifting surface 42 is defined by the relative positional relationship between the third side 45 and the inner wall of the inner cylinder 10.

[0049] By setting a guide surface 41 with a distance from the inner wall of the inner drum 10 that gradually decreases from one end to the other, the lifting ribs 40 can push the clothes in the front-back direction while the inner drum 10 rolls. After the clothes are pushed to the other end, the lifting surface 42, which is higher than the guide surface 41 in the height direction at the other end, can continue to be lifted at the other end by the lifting surface 42, so as to drop the clothes from a higher height, thereby achieving a better tumbling effect and improving the washing effect.

[0050] Furthermore, water spray holes 46 are provided on the guide surface 41 and / or the lifting surface 42, which can further improve the washing effect.

[0051] The working process of the roller 100 according to the present invention will be described below based on its working principle.

[0052] Clothes are placed onto the bottom wall 11 of the inner drum 10 through the loading port 12. Water is then injected into the inner drum 10 to begin washing the clothes. When the inner drum 10 rotates clockwise, the clothes and water flow through the first side wall 211 and the second side wall 212 of each rib 21. When the inner drum 10 rotates counterclockwise, the clothes and water flow through the second side wall 212 and the first side wall 211 of each rib 21. The inner drum 10 repeatedly rotates clockwise and counterclockwise, allowing the water to pass through the clothes at different angles for washing and causing different water flow changes. When the drum 100 is spinning, the inner drum 10 repeatedly rotates clockwise and counterclockwise, and the clothes are moved back and forth through the first side wall 211 and the second side wall 212 at different angles to adjust the eccentricity of the clothes, shake them apart, and complete the spin-drying process.

[0053] This utility model also provides a garment processing device having the drum 100 as described above. Through the above method, the garment processing device can improve the efficiency of adjusting garment eccentricity, shake the garments more quickly, and optimize the washing effect. The garment processing device is a front-opening drum-type washing machine or drum-type dryer; in other words, the loading port 12 of the drum 100 is arranged facing the front of the garment processing device.

[0054] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A drum applied to a laundry treating apparatus, characterized by, the drum comprising: an inner drum having a loading port at one end in an axial direction and a bottom wall at the other end; and a rib group provided to the bottom wall of the inner drum and protruding in a direction close to the loading port, the rib group having a rotational symmetry shape with the axis of the inner drum as a center axis, the rib group comprising: a plurality of ribs each having a first side wall and a second side wall at both sides in a rotation direction of the inner drum, the first side wall having a first inclined angle with respect to the bottom wall of the inner drum, the second side wall having a second inclined angle with respect to the bottom wall of the inner drum, the first inclined angle being different from the second inclined angle.

2. The drum according to claim 1, characterized in that the first side wall being an arc surface having the first inclined angle varying from small to large in a radial direction outward, the second side wall being an arc surface having the second inclined angle varying from large to small in the radial direction outward, the first inclined angle having a different variation range from the second inclined angle.

3. The drum of claim 2, wherein adjacent first side walls and second side walls of adjacent two ribs being connected integrally in a form of an arc surface smoothly transitioning.

4. The drum of claim 1, wherein a projection area of the first side wall of each rib on the bottom wall of the inner drum being a first projection area, a projection area of the second side wall of each rib on the bottom wall of the inner drum being a second projection area, a sum of the first projection area and the second projection area of each rib being equal.

5. The drum of claim 1, wherein a radial outer edge of the rib group being connected to an inner side wall of the inner drum.

6. The drum of claim 1, wherein the rib group further comprising a center protrusion provided corresponding to a center of the bottom wall of the inner drum, the plurality of ribs being connected to each other through the center protrusion.

7. The drum of claim 1, wherein the rib group dividing the bottom wall of the inner drum into at least two water outlet areas, each water outlet area being provided with a water outlet hole.

8. The drum of claim 1, wherein, further comprising a lifting rib provided to the inner side wall of the inner drum, the lifting rib comprising a guide surface and a lifting surface, the guide surface having a first edge provided to the inner side wall and a second edge protruding from an end of the first edge in a direction away from the inner side wall, at least a part of the second edge being spaced apart from the first edge in a manner that a distance between the second edge and the first edge gradually decreases from one end of the lifting rib toward the other end; the lifting surface having the second edge and a third edge protruding from the second edge in a direction further away from the inner side wall. 9.A laundry treating apparatus, characterized by, the drum having the drum as claimed in any one of claims 1 to 8. 10.The laundry treating apparatus of claim 9, wherein the first and second openings are formed in the first and second sides of the cabinet, respectively. the loading port of the drum being provided toward a front side of the laundry treating apparatus. the drum having the drum as claimed in any one of claims 1 to 8.

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