High-strength inner drum of drum washing machine

By incorporating ceramic annular micro-arches and honeycomb-shaped holes on the inner drum of the washing machine, combined with the design of annular blocks and reinforcing ribs, the problem of water flow being unable to penetrate clothes is solved, improving the washing effect and the structural strength of the inner drum, ensuring stability and durability.

CN223548269UActive Publication Date: 2025-11-14NANJING HUIKANG GLASSWORK CO LTD
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Patent Information

Application Number
CN202423088057.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-14
Publication Date
2025-11-14
Estimated Expiration
2034-12-14

AI Technical Summary

Technical Problem

The smooth design of the inner drum of traditional washing machines makes it difficult for water to penetrate clothes, and detergent and water cannot fully penetrate the clothing fibers, resulting in poor washing performance.

Method used

The inner cylinder features a ceramic annular micro-arch design and a honeycomb-shaped perforation, reinforced by annular blocks and reinforcing ribs. The inner cylinder is made of high-strength polypropylene (PP) plastic and stainless steel, and is fixed by welding and riveting to ensure stability and wear resistance.

Benefits of technology

It improves the water flow's penetration of clothes, enhances the structural strength and stability of the inner drum, reduces the risk of clothes getting stuck, and improves washing performance and reduces the failure rate.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223548269U_ABST
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Abstract

The utility model discloses a high-strength inner drum of a drum washing machine, and belongs to the field of washing machines. A high-strength inner drum of a drum washing machine comprises a box body, a supporting frame is fixed on the inner side of the box body, an outer drum is fixed on the upper side of the supporting frame, and an inner drum is arranged on the inner side of the outer drum. According to the inner drum, water flow can penetrate through clothes more effectively through micro-arch arrangement and evenly-formed bee-shaped holes of a ceramic ring face fixed to the inner drum, and the water flow can penetrate through the clothes more effectively; the bee-shaped holes are formed in the washing machine, so that a detergent and water can penetrate into clothes fibers, the washing effect is improved, the cleanliness of the clothes is guaranteed, meanwhile, the sizes of the bee-shaped holes are controlled to be 1-3 mm, smooth penetration of water flow is guaranteed, the risk that the clothes are stuck in the washing process is avoided, the failure rate in the washing process is reduced, and the service life of the clothes is prolonged. The problems that in the prior art, water flow is difficult to effectively penetrate through clothes, and washing agents and water cannot fully penetrate into clothes fibers, so that the washing effect is poor are effectively solved.
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Description

Technical Field

[0001] This utility model relates to the field of washing machines, and in particular to a high-strength drum washing machine inner drum. Background Technology

[0002] In traditional washing machine drum designs, smooth drum walls are typically used to improve washing performance. This method aims to reduce friction between clothes and the drum wall, minimizing damage to the garments.

[0003] However, the smooth drum design has certain drawbacks. Because water flow cannot effectively penetrate clothing, detergent and water cannot fully penetrate the clothing fibers, resulting in poor washing performance. Utility Model Content

[0004] The purpose of this invention is to provide a high-strength inner drum for a drum washing machine to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A high-strength drum washing machine inner drum includes: a housing, a support frame fixed to the inner side of the housing, an outer drum fixed to the upper side of the support frame, an inner drum disposed inside the outer drum, a rotary motor fixed to the inner side of the housing, and a transmission belt connected to the output end of the rotary motor via a pulley.

[0007] The inner cylinder includes an inner cylinder body. The outer cylinder is connected to the inner cylinder body via a tripod. A pulley is fixed on one side of the inner cylinder body. Annular blocks are fixed at both ends of the inner side of the inner cylinder body. A ceramic ring surface is fixed on the inner side of the inner cylinder body. A reinforcing rib is fixed between the annular blocks and the ceramic ring surface. Several water passage holes are provided on the inner cylinder body.

[0008] A pulley is connected to the inner side of the transmission belt.

[0009] The micro-arched design and evenly spaced honeycomb-shaped perforations of the ceramic annulus facilitate water penetration into clothes, improving washing performance. The size of the honeycomb perforations is controlled between 1-2 millimeters, ensuring smooth water flow while preventing clothes from getting stuck. The annular block, serving as a reinforcing structure for the inner drum, is made of high-strength polypropylene (PP) plastic, offering high strength and excellent wear resistance. The reinforcing ribs, made of stainless steel, are riveted to the inner drum body, further enhancing its overall structural strength. The ceramic annulus and the annular block are also integrally molded and secured to each other by reinforcing ribs, ensuring the stability and durability of the inner drum during high-speed rotation.

[0010] Preferably, the annular block has an annular winding structure.

[0011] Preferably, the annular block is made of high-strength polypropylene (PP) plastic.

[0012] Preferably, the ceramic ring surface is slightly arched, and multiple honeycomb-shaped holes between 1 and 3 mm are evenly formed on the ceramic ring surface.

[0013] Preferably, the reinforcing rib is made of stainless steel.

[0014] Preferably, the ceramic annular surface and the annular block are integrally formed and fixed together by reinforcing ribs.

[0015] Preferably, the annular block and the ceramic annular surface are fixed to the inner cylinder body by welding, and the reinforcing rib is fixed to the inner cylinder body by riveting.

[0016] Compared with the prior art, this utility model provides a high-strength drum washing machine inner drum, which has the following beneficial effects:

[0017] 1. This utility model, through the micro-arched design of the ceramic ring surface fixed in the inner cylinder and the evenly spaced honeycomb holes, helps water flow to penetrate clothing more effectively, allowing detergent and water to penetrate deep into the clothing fibers, thereby improving the washing effect and ensuring the cleanliness of the clothes. At the same time, the size of the honeycomb holes is controlled between 1-3 mm, which not only ensures the smooth penetration of water flow, but also avoids the risk of clothes getting stuck during the washing process, reducing the failure rate during the washing process. It effectively solves the problem in the prior art that water flow is difficult to penetrate clothing effectively, and detergent and water cannot fully penetrate clothing fibers, resulting in poor washing effect.

[0018] 2. This utility model uses an annular block as a reinforcing structure for the inner cylinder body. It is made of high-strength polypropylene (PP) plastic material, which has high strength and good wear resistance. The reinforcing ribs are made of stainless steel. The ceramic ring surface and the annular block are fixed together by the reinforcing ribs. The annular block and the ceramic ring surface are fixed to the inner cylinder body by welding, and the reinforcing ribs are fixed to the inner cylinder body by riveting. This further enhances the overall structural strength of the inner cylinder and ensures the stability and durability of the inner cylinder when rotating at high speed. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional cross-sectional view of the inner drum of a high-strength drum washing machine proposed in this utility model;

[0021] Figure 2 This is a three-dimensional structural diagram of a high-strength drum washing machine inner drum proposed in this utility model;

[0022] Figure 3 This is a front elevation structural diagram of the inner drum of a high-strength drum washing machine proposed in this utility model;

[0023] Figure 4 This is a schematic diagram of the cross-sectional structure of the inner drum of a high-strength drum washing machine proposed in this utility model;

[0024] Figure 5 This is an exploded view of the inner drum structure of a high-strength drum washing machine according to the present invention.

[0025] In the picture:

[0026] 1. Box body; 2. Support frame; 3. Outer cylinder; 4. Inner cylinder; 41. Inner cylinder body; 42. Pulley; 43. Annular block; 44. Ceramic ring surface; 45. Reinforcing rib; 46. Water passage hole; 5. Rotary motor; 6. Transmission belt. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example

[0029] refer to Figures 1-5 A high-strength drum washing machine inner drum includes: a box body 1, a support frame 2 fixed inside the box body 1, an outer drum 3 fixed on the upper side of the support frame 2, an inner drum 4 provided inside the outer drum 3, a rotary motor 5 fixed inside the box body 1, and a transmission belt 6 connected to the output end of the rotary motor 5 via a pulley.

[0030] The inner cylinder 4 includes an inner cylinder body 41. The outer cylinder 3 is connected to the inner cylinder body 41 via a tripod. A pulley 42 is fixed on one side of the inner cylinder body 41. Annular blocks 43 are fixed at both ends of the inner side of the inner cylinder body 41. A ceramic ring surface 44 is fixed on the inner side of the inner cylinder body 41. A reinforcing rib 45 is fixed between the annular block 43 and the ceramic ring surface 44. Several water passage holes 46 are opened on the inner cylinder body 41.

[0031] A pulley 42 is connected to the inner side of the transmission belt 6.

[0032] The slightly arched design and evenly spaced honeycomb-shaped perforations of the ceramic annular surface 44 facilitate water penetration into clothing, improving washing performance. Simultaneously, the size of the honeycomb perforations is controlled between 1-3 mm, ensuring smooth water flow while preventing clothing from getting stuck. The annular block 43, serving as a reinforcing structure for the inner drum body 41, is made of high-strength polypropylene (PP) plastic, possessing high strength and excellent wear resistance. The reinforcing ribs 45, made of stainless steel, are riveted to the inner drum body 41, further enhancing the overall structural strength of the inner drum. The ceramic annular surface 44 and the annular block 43 are also integrally molded and fixed together by the reinforcing ribs 45, ensuring the stability and durability of the inner drum during high-speed rotation.

[0033] The annular block 43 has an annular winding structure.

[0034] The ring block 43 is made of high-strength polypropylene (PP) plastic.

[0035] The ceramic annular surface 44 is slightly arched, and multiple honeycomb-shaped holes between 1 and 3 mm are evenly opened on the ceramic annular surface 44.

[0036] The reinforcing rib 45 is made of stainless steel.

[0037] The ceramic annular surface 44 and the annular block 43 are fixed together by reinforcing ribs 45 and formed as a single unit.

[0038] The annular block 43 and the ceramic annular surface 44 are fixed to the inner cylinder body 41 by welding, while the reinforcing rib 45 is fixed to the inner cylinder body 41 by riveting.

[0039] Working principle: Please refer to Figures 1-5 As shown, firstly, when the washing machine receives the start signal, the rotary motor 5 starts working. The output end of the rotary motor 5 drives the pulley 42 to rotate via the pulley and transmission belt 6. The pulley 42 is fixedly connected to the inner drum body 41, so when the pulley 42 rotates, the inner drum body 41 also rotates. The rotation of the inner drum body 41 causes the clothes and water inside to rotate together, forming a washing action. The micro-arched setting and evenly spaced honeycomb holes of the ceramic annular surface 44 help water flow penetrate the clothes, improving the washing effect.

[0040] Meanwhile, the size of the honeycomb holes is controlled between 1-3 mm, ensuring smooth water flow while avoiding the risk of clothing getting stuck. The annular block 43, serving as a reinforcing structure for the inner cylinder body 41, is made of high-strength polypropylene (PP) plastic, possessing high strength and good wear resistance. The reinforcing rib 45, made of stainless steel, is riveted to the inner cylinder body 41, further enhancing the overall structural strength of the inner cylinder. The ceramic ring surface 44 and the annular block 43 are also integrally formed and fixed together by the reinforcing rib 45, ensuring the stability and durability of the inner cylinder during high-speed rotation.

[0041] After the wash cycle is complete, the washing machine enters the draining stage. During this stage, several water holes 46 on the inner drum body 41 allow water to drain from the inner drum. During draining, the inner drum body 41 may continue to rotate at a low speed to help the clothes separate more effectively. Once draining is complete, the washing machine enters the final stage. At this point, the rotary motor 5 stops working, and the inner drum body 41 stops rotating. The user can then remove the washed clothes and prepare for the next wash.

[0042] The use of inner and outer drums for drainage in washing machines is an existing technology, which will not be described in detail in this utility model. At the same time, the outer drum 3 is connected to the inner drum body 41 by a tripod, which enables it to rotate inside the outer drum, which is a conventional method in the prior art. Therefore, this utility model will not show the attached drawings showing the connection between the tripod and the inner drum body 41.

Claims

1. A high-strength drum washing machine inner drum, comprising: The housing (1) is characterized in that a support frame (2) is fixed to the inner side of the housing (1), an outer cylinder (3) is fixed to the upper side of the support frame (2), an inner cylinder (4) is provided inside the outer cylinder (3), a rotary motor (5) is fixed to the inner side of the housing (1), and a transmission belt (6) is connected to the output end of the rotary motor (5) via a pulley; wherein The inner cylinder (4) includes an inner cylinder body (41), the outer cylinder (3) is connected to the inner cylinder body (41) via a tripod, a pulley (42) is fixed to one side of the inner cylinder body (41), annular blocks (43) are fixed to both ends of the inner side of the inner cylinder body (41), a ceramic annular surface (44) is fixed to the inner side of the inner cylinder body (41), a reinforcing rib (45) is fixed between the annular block (43) and the ceramic annular surface (44), and several water passage holes (46) are provided on the inner cylinder body (41); and The inner side of the transmission belt (6) is connected to a pulley (42).

2. The high-strength drum washing machine inner tub according to claim 1, characterized in that, The annular block (43) has an annular winding structure.

3. The high-strength drum washing machine inner tub according to claim 2, characterized in that, The annular block (43) is made of high-strength polypropylene (PP) plastic.

4. The high-strength drum washing machine inner tub according to claim 1, characterized in that, The ceramic annular surface (44) is slightly arched, and multiple honeycomb-shaped holes between 1 and 3 mm are evenly opened on the ceramic annular surface (44).

5. The high-strength drum washing machine inner tub according to claim 1, characterized in that, The reinforcing rib (45) is made of stainless steel.

6. The high-strength drum washing machine inner tub according to claim 1, characterized in that, The ceramic annular surface (44) and the annular block (43) are fixed together by reinforcing ribs (45) to form a single unit.

7. The high-strength drum washing machine inner tub according to claim 1, characterized in that, The annular block (43) and the ceramic annular surface (44) are fixed to the inner cylinder body (41) by welding, and the reinforcing rib (45) is fixed to the inner cylinder body (41) by riveting.