Inner barrel structure of washing machine

By incorporating side and bottom brush assemblies into the inner drum structure of the washing machine, and utilizing the centrifugal force of water flow for scrubbing, the problem of existing washing machines struggling to clean stubborn stains is solved, achieving highly efficient cleaning results.

CN223646799UActive Publication Date: 2025-12-09深圳市奥德莱智家科技有限公司
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Patent Information

Application Number
CN202422966470.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Priority Date
2024-10-23
Filing Date
2024-11-30
Publication Date
2025-12-09
Estimated Expiration
2034-11-30

AI Technical Summary

Technical Problem

Existing washing machines are ineffective at cleaning stubborn stains and dirt, especially milk stains and drool stains on baby clothes, and manual washing is labor-intensive, increasing the burden on families.

Method used

The inner tub structure of the washing machine is designed with built-in side brushes and a chassis. The side brush assembly and bottom brush assembly are evenly distributed on the inner tub wall and bottom, and the washing is performed by using the centrifugal force of water flow.

Benefits of technology

It enables efficient scrubbing of stubborn stains and dirt, reducing the time spent on manual scrubbing, improving cleaning efficiency, and reducing household labor burden.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of washing equipment, and particularly discloses an inner barrel structure of a washing machine, which comprises an inner barrel body, a side brush component is arranged on the barrel wall of the inner barrel body, a rotatable inner barrel base plate is arranged at the bottom of the inner barrel body, a bottom brush component is mounted on the inner barrel base plate, and the side brush component is arranged on the inner barrel base plate. The bottom brush assembly comprises a first bottom brush which is installed on the axis of the upper end of the inner barrel base plate and is in a convex arc face shape and a plurality of second bottom brushes evenly distributed on the circumference of the upper end of the inner barrel base plate. According to the inner barrel structure, stains and residues which are difficult to clean on clothes, especially stains and smudginess on the clothes of infants, can be cleaned and washed cleanly and quickly, the time required by manual scrubbing is saved, and the inner barrel structure has very high convenience.
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Description

Technical Field

[0001] This utility model relates to the field of washing equipment technology, specifically to an inner drum structure of a washing machine. Background Technology

[0002] Currently, the mainstream washing machines on the market are pulsator and front-loading models, both relying on water flow, tumbling, and water-jet washing techniques. As people's living standards improve and their working and living environments become better, clothes are less soiled, and mainstream washing machines can generally meet the cleanliness requirements of most garments.

[0003] However, due to the nature of various work processes, some clothes inevitably have deep stains that ordinary washing machines simply cannot meet the cleaning standards required by customers. This is especially true for infant and toddler clothing. Infants' clothes are particularly prone to soiling due to various factors during their growth period, and the materials are almost always pure cotton, making them difficult to clean thoroughly with ordinary washing machines. These infant and toddler clothes typically have milk stains, drool stains, food stains, and other highly adhesive protein residues, as well as dirt picked up from crawling and rolling around. Hand washing these items is very labor-intensive, and the stains are often deeply embedded and difficult to remove without sufficient force. Furthermore, with children, there is already a significant amount of time spent caring for them; adding the extra labor burden of manually washing a large number of infant and toddler clothes undoubtedly increases the household's workload. Therefore, solving this problem has gradually become a research focus for technicians in the laundry industry. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide an inner tub structure for a washing machine. This inner tub structure is equipped with a side brush assembly and a bottom brush assembly, which can cleanly and quickly brush away hard-to-clean stains and residues on clothes, especially stains and dirt on infant and toddler clothes, saving the time required for manual washing and providing great convenience.

[0005] This utility model is achieved through the following technical solution:

[0006] An inner tub structure for a washing machine includes an inner tub body, a side brush assembly on the tub wall of the inner tub body, a rotatable inner tub base at the bottom of the inner tub body, and a bottom brush assembly mounted on the inner tub base. The bottom brush assembly includes a first bottom brush with a convex arc surface mounted on the upper axis of the inner tub base and a plurality of second bottom brushes evenly distributed on the upper circumference of the inner tub base.

[0007] In the washing machine inner tub structure described above, the bottom brush assembly is detachably mounted on the upper end of the inner tub chassis.

[0008] As described above, in the inner tub structure of the washing machine, the first bottom brush is a semi-ellipsoidal brush, which consists of a semi-ellipsoidal brush seat mounted on the inner tub base and first bristles distributed on the semi-ellipsoidal brush seat and radiating outward into a semi-ellipsoidal shape.

[0009] As described above, in the inner tub structure of the washing machine, the semi-ellipsoidal brush seat and the first brush bristles of the first bottom brush are formed as one piece.

[0010] As described above, in the inner tub structure of the washing machine, the second bottom brush consists of a bottom brush holder mounted on the bottom of the inner tub and second bristles distributed on the bottom brush holder.

[0011] In the washing machine inner tub structure described above, the side brush assembly is detachably mounted on the tub wall of the inner tub body.

[0012] As described above, in the inner tub structure of the washing machine, the side brush assembly includes a plurality of side brushes arranged on the circumference of the tub wall, and the side brush consists of a side brush base and third bristles distributed on the outside of the side brush base.

[0013] As described above, in the inner tub structure of the washing machine, the third bristles on the side brush holder include upper bristles and lower bristles, and the length of the lower bristles is greater than that of the upper bristles.

[0014] As described above, in the inner tub structure of the washing machine, the third bristles on the side brush holder are divided into upper bristles, middle bristles, and lower bristles, and the lengths of the upper bristles and lower bristles are both greater than those of the middle bristles.

[0015] As described above, in the inner tub structure of the washing machine, the length of the third bristles on the side brush holder gradually shortens from the upper and lower ends toward the middle.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. The inner drum of this washing machine has a simple structure and a cleaning effect that mimics hand brushing of clothes. It has a good brushing effect on protein stains with strong adhesion and deep-penetrating stains, saving the time required for manual washing and providing great convenience.

[0018] 2. The inner tub structure of this utility model washing machine is simple. By providing a side brush assembly on the tub wall and a bottom brush assembly on the inner tub base, the clothes can generate a brushing force with both the bottom brush assembly and the side brush assembly under the centrifugal force of the water flow, thereby achieving the purpose of brushing. Moreover, the first bottom brush with a convex arc surface has a high center and low periphery, which can disperse the clothes squeezed together under the vortex. Under the action of centrifugal force, the clothes are then brushed by the second bottom brush around the circle, making the clothes cleaner.

[0019] 3. The circumferential surface of the third bristles on several side brushes of this utility model can form a better washing space with the inner drum body, so that the clothes can be evenly distributed under the water vortex and will not be squeezed in one place; moreover, the third bristles on the side brushes are composed of bristles of different lengths, and the long and short bristles have different brushing forces, so that the clothes are brushed more evenly. Attached Figure Description

[0020] To more clearly illustrate the structural features and effects of this utility model, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the structure of the inner tub of the washing machine according to this utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the inner drum of the washing machine according to this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the bottom brush assembly on the inner tub chassis of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the first bottom brush of this utility model;

[0025] Figure 5 This is a schematic diagram of the side brush structure in Embodiment 1 of this utility model;

[0026] Figure 6 This is a schematic diagram of the side brush structure in Embodiment 2 of this utility model;

[0027] Figure 7 This is a schematic diagram of the side brush in Embodiment 3 of this utility model. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0029] like Figure 1-2 As shown, the inner tub structure of a washing machine in this embodiment includes an inner tub body 1, a side brush assembly 2 on the tub wall 11 of the inner tub body 1, an inner tub base 12 at the bottom of the inner tub body 1, and a bottom brush assembly 3 installed on the inner tub base 12. The bottom brush assembly 3 includes a first bottom brush 31 with a convex arc surface installed on the upper axis of the inner tub base 12 and a plurality of second bottom brushes 32 evenly distributed on the upper circumference of the inner tub base 12.

[0030] The inner tub structure of this washing machine is simple. By providing a side brush assembly 2 on the tub wall 11 of the inner tub body 1 and a bottom brush assembly 3 on the inner tub base 12, the clothes can generate a brushing force with both the bottom brush assembly 3 and the side brush assembly 2 under the centrifugal force of the water flow, thereby achieving the purpose of brushing. Moreover, the first bottom brush 31, which has a convex arc surface with a high center and low periphery, can disperse the clothes squeezed together under the vortex. Under the action of centrifugal force, it can then be brushed by the second bottom brush 32 around the circle, making the clothes cleaner.

[0031] The inner drum of this washing machine has a cleaning effect that mimics hand-washing clothes. It has a good scrubbing effect on protein stains with strong adhesion and deep-penetrating stains, saving the time required for manual washing and providing great convenience.

[0032] In this utility model, the inner tub base 12 can be the inner tub impeller of a top-loading washing machine or the rolling base of a front-loading washing machine.

[0033] This utility model can wash a variety of items, such as infant hats, gloves, toys, and other semi-hard and hard items. It not only meets the user's needs for convenience but also saves equipment costs by being multifunctional, thus having certain economic benefits.

[0034] As a more preferred embodiment, the bottom brush assembly 3 of this invention is detachably mounted on the upper end of the inner tub base 12. This detachable mounting facilitates cleaning and replacement of the bottom brush assembly 3, further extending the service life of the washing machine inner tub body 1.

[0035] like Figure 3-4 As shown, the first bottom brush 31 is a semi-ellipsoidal brush. The semi-ellipsoidal shape has both major and minor axes, which increases the force applied to the clothes when rotating. Simultaneously, the clothes, which are high in the center and low at the periphery, are dispersed under the influence of the vortex and evenly spread out in the loop. Then, under the action of centrifugal force, they are further brushed by the second bottom brush 32 around the periphery, resulting in a cleaner wash. Specifically, in this embodiment, the first bottom brush 31 consists of a semi-ellipsoidal brush base 311 mounted on the inner tub base 12 and first bristles 312 distributed on the semi-ellipsoidal brush base 311 and radiating outwards in a semi-ellipsoidal shape. More specifically, in this embodiment, the semi-ellipsoidal brush base 311 and the first bristles 312 of the first bottom brush 31 are formed as a single unit. In actual operation, a bristle implantation process can also be used to implant the first bristles 312 onto the semi-ellipsoidal brush base 311.

[0036] like Figure 3 As shown, the second bottom brush 32 consists of a bottom brush holder 321 mounted on the inner barrel base 12 and second bristles 322 distributed on the bottom brush holder 321. Specifically, the second bristles 322 can be implanted into the bottom brush holder 321 through a three-dimensional bristle implantation process.

[0037] In this invention, the side brush assembly 2 is detachably mounted on the barrel wall 11 of the inner barrel body 1. This detachable mounting facilitates the replacement and cleaning of the side brush assembly 2.

[0038] like Figure 1-2 and Figure 5-7 As shown. In this utility model, the side brush assembly 2 includes several side brushes 21 arranged on the circumference of the tub wall 11; the side brush assembly 2 can be formed by multiple side brushes 21 arranged in a circle on the tub wall 11, or multiple side brushes 21 can be distributed intermittently on the tub wall 11. Under the action of centrifugal force of water flow, the clothes generate a brushing force with the side brushes 21, thereby achieving a cleaner wash. Specifically, the side brush 21 consists of a side brush base 211 and bristles 212 distributed on the outside of the side brush base 211. More specifically, in this embodiment, the third bristles 212 can be implanted into the side brush base 211 through a bristle implantation process.

[0039] like Figure 5 As shown, in the first embodiment of this utility model, the third bristles 212 on the side brush holder 211 include upper bristles 212A and lower bristles 212C, and the length of the lower bristles 212C is greater than that of the upper bristles 212A. The circumferential surface surrounded by several third bristles 212 forms a washing space with the inner drum body 1, which is wider and narrower than the upper and lower cone shape, so that the clothes can be evenly distributed under the water vortex and will not be squeezed in one place; at the same time, the upper bristles 212A and the lower bristles 212C are of different lengths, and the long and short bristles have different brushing forces, so that the clothes are brushed more evenly.

[0040] like Figure 6 As shown, in the second embodiment of this utility model, the third bristles 212 on the side brush holder 211 are divided into upper bristles 212A, middle bristles 212B, and lower bristles 212C, and the lengths of the upper bristles 212A and lower bristles 212C are both greater than that of the middle bristles 212B. Unlike the first embodiment of this utility model, the third bristles 212 in this embodiment are divided into three parts. The upper bristles 212A are longer and can both brush and block, better ensuring that the clothes are washed within the water vortex, greatly increasing the effective washing area.

[0041] like Figure 7 As shown, in the third embodiment of this utility model, the length of the third bristles 212 on the side brush holder 211 gradually shortens from the upper and lower ends towards the middle. The function of the long bristles at the upper and lower ends is roughly the same in the third embodiment and the second embodiment, but in this embodiment, the brush surface of several third bristles 212 forms a spherical washing space with the inner drum body 1, which further increases the effective washing area and makes the clothes cleaner.

Claims

1. An inner tub structure for a washing machine, comprising an inner tub body (1), characterized in that... The inner barrel body (1) has a side brush assembly (2) on its barrel wall (11). The bottom of the inner barrel body (1) has a rotatable inner barrel base (12). The inner barrel base (12) is equipped with a bottom brush assembly (3). The bottom brush assembly (3) includes a first bottom brush (31) with a convex arc surface installed on the upper axis of the inner barrel base (12) and several second bottom brushes (32) evenly distributed on the upper circumference of the inner barrel base (12).

2. The inner tub structure of the washing machine according to claim 1, characterized in that... The bottom brush assembly (3) is detachably mounted on the upper end of the inner tub chassis (12).

3. The inner tub structure of the washing machine according to claim 1 or 2, characterized in that... The first bottom brush (31) is a semi-ellipsoidal brush. The first bottom brush (31) consists of a semi-ellipsoidal brush seat (311) installed on the inner barrel base (12) and first bristles (312) distributed on the semi-ellipsoidal brush seat (311) and radiating outward into a semi-ellipsoidal shape.

4. The inner tub structure of the washing machine according to claim 3, characterized in that... The semi-ellipsoidal brush seat (311) and the first bristles (312) of the first bottom brush (31) are formed as one piece.

5. The inner tub structure of the washing machine according to claim 1 or 2, characterized in that... The second bottom brush (32) consists of a bottom brush holder (321) mounted on the inner barrel base (12) and second bristles (322) distributed on the bottom brush holder (321).

6. The inner tub structure of the washing machine according to claim 1, characterized in that... The side brush assembly (2) is detachably mounted on the barrel wall (11) of the inner barrel body (1).

7. The inner tub structure of the washing machine according to claim 1 or 6, characterized in that... The side brush assembly (2) includes a plurality of side brushes (21) arranged on the circumference of the barrel wall (11). The side brush (21) consists of a side brush holder (211) and third bristles (212) distributed on the outside of the side brush holder (211).

8. The inner tub structure of the washing machine according to claim 7, characterized in that... The third bristle (212) on the side brush holder (211) includes an upper bristle (212A) and a lower bristle (212C), and the length of the lower bristle (212C) is greater than that of the upper bristle (212A).

9. The inner tub structure of the washing machine according to claim 7, characterized in that... The third bristles (212) on the side brush holder (211) are divided into upper bristles (212A), middle bristles (212B) and lower bristles (212C), and the lengths of the upper bristles (212A) and lower bristles (212C) are both greater than that of the middle bristles (212B).

10. The inner tub structure of the washing machine according to claim 7, characterized in that... The length of the third bristle (212) on the side brush holder (211) gradually shortens from the upper and lower ends toward the middle.