Washing machine with drum self-cleaning function

Abstract

The present application relates to a washing machine with a self-cleaning function, which at least solves the problem that the existing washing machines cannot effectively clean the outer wall of the inner drum. The washing machine comprises an outer drum and an inner drum, wherein the inner drum is arranged in the outer drum and can rotate relative to the outer drum, and the outer drum is provided with a cleaning mechanism for cleaning the outer drum wall of the inner drum. The cleaning mechanism comprises a cleaning component arranged on the outer drum and a driving mechanism for driving the cleaning component to move close to or away from the inner drum.

Description

Technical Field

[0001] The present application relates to the technical field of washing machines, and in particular to a washing machine with a drum self-cleaning function. Background Art

[0002] A Chinese patent with publication number CN104088120A discloses a washing machine with a drum self-cleaning function, which achieves the cleaning requirement by directing water entering the water inlet valve of the washing machine into the cavity of a spray assembly through a water conduit, and then spraying the water to the area between the inner and outer drums. At the same time, the inner drum runs at high speed to impact various parts of the spray area, thereby automatically cleaning the stains from the washing machine.

[0003] The problem with the above structure is that it has high requirements for the spray assembly. The water sprayed from the spray assembly needs to have extremely strong impact force to achieve the effect of flushing the side wall of the inner cylinder. On the one hand, it increases the product cost, and on the other hand, it cannot quickly and effectively clean the outer wall of the inner cylinder. Summary of the invention

[0004] The present application provides a washing machine with a drum self-cleaning function, so as to at least solve the problem that the existing washing machines cannot effectively clean the outer wall of the inner drum.

[0005] In order to achieve the above-mentioned purpose, the present application provides a washing machine with a drum self-cleaning function, including an outer drum and an inner drum, the inner drum is arranged in the outer drum and can rotate relative to the outer drum, the outer drum is provided with a cleaning mechanism for cleaning the outer drum wall of the inner drum, the cleaning mechanism includes a cleaning component arranged on the outer drum and a driving mechanism for driving the cleaning component to move close to or away from the inner drum.

[0006] Preferably, the driving mechanism includes a driving motor fixedly connected to the outer cylinder, a driving screw arranged at the output end of the driving motor, and a cleaning component mounting seat threadedly matched with the driving screw, and the cleaning component mounting seat can slide relative to the outer cylinder in the extension direction of the driving screw.

[0007] Preferably, the outer cylinder is provided with a motor mounting seat, the driving motor is arranged on the motor mounting seat, and the cleaning component mounting seat is slidably matched with the motor mounting seat.

[0008] Preferably, the motor mounting seat is provided with a guide hole, and the cleaning component mounting seat is provided with a guide column matched with the guide hole, and the cleaning component mounting seat and the motor mounting seat are slidably matched by the guide column extending and retracting in the guide hole.

[0009] Preferably, the motor mounting seat is provided with a motor support, the drive motor is fixed on the motor support, the motor mounting seat is provided with a screw through hole, and the drive screw passes through the screw through hole.

[0010] Preferably, it also includes a stroke control device for controlling the stroke of the cleaning component.

[0011] Preferably, the motor mounting seat is provided with a travel switch for controlling the travel of the cleaning component mounting seat.

[0012] Preferably, the motor mounting seat is provided with a travel switch bracket, and the travel switch is arranged on the travel switch bracket.

[0013] Preferably, the travel switch is adjustable in position on the travel switch bracket.

[0014] Preferably, the inner cylinder comprises an annular side wall and a bottom wall arranged at one end of the side wall, the bottom wall is rotatably connected to the outer cylinder via a rotating shaft, the other end of the side wall is provided with an inner cylinder opening, and the outer cylinder is provided with an outer cylinder opening corresponding to the inner cylinder opening.

[0015] According to the above content, the beneficial effects of this application are:

[0016] The present application arranges a cleaning component between the inner cylinder and the outer cylinder. When the cylinder needs to be self-cleaned, a driving mechanism drives the cleaning component to contact the outer wall of the inner cylinder. The outer wall of the inner cylinder rotates to enable the cleaning component to clean the stains attached to the outer wall of the inner cylinder. After cleaning is completed, the driving mechanism drives the cleaning component to disengage from the inner cylinder to facilitate the normal operation of the inner cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of this application;

[0019] Figure 2 This is a partial illustration of this application Figure 1 ;

[0020] Figure 3 This is a partial illustration of this application Figure 2 ;

[0021] Figure 4 This is a partial illustration of this application Figure 3 ;

[0022] Figure 5 It is a schematic diagram of the structure of the inner cylinder in this application;

[0023] Figure 6 It is a partial schematic diagram of the inner cylinder in this application;

[0024] Figure 7It is a structural schematic diagram of the end cover in this application. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application. In addition, it can also be understood that although the efforts made in this development process may be complex and lengthy, for ordinary technicians in the field related to the contents disclosed in the present application, some changes such as design, manufacturing or production based on the technical contents disclosed in the present application are only conventional technical means, and should not be understood as insufficient contents disclosed in the present application.

[0026] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those of ordinary skill in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0027] Unless otherwise defined, the technical terms or scientific terms used in this application shall have the common meanings understood by persons with ordinary skills in the technical field to which this application belongs. The words "a", "an", "a", "the" and the like used in this application do not indicate quantity restrictions and may indicate the singular or plural. The terms "include", "comprising", "having" and any variations thereof involved in the present application are intended to cover non-exclusive inclusions; for example, a process, method, system, product or device comprising a series of steps or modules (units) is not limited to the listed steps or units, but may also include steps or units that are not listed, or may also include other steps or units inherent to these processes, methods, products or devices. The words "connected", "connected", "coupled" and the like involved in the present application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The "plurality" involved in the present application means greater than or equal to two. "And / or" describes the association relationship of associated objects, indicating that there may be three relationships. For example, "A and / or B" may represent: A exists alone, A and B exist at the same time, and B exists alone. The terms "first", "second", "third" and the like involved in the present application are merely used to distinguish similar objects and do not represent a specific ordering of the objects.

[0028] See also Figures 1 to 7 The washing machine with drum self-cleaning function of this embodiment comprises an outer drum 1 and an inner drum 2, wherein the inner drum is arranged in the outer drum and can rotate relative to the outer drum, wherein the inner drum comprises an annular side wall 21 and a bottom wall 22 arranged at one end of the side wall, an integral structure is adopted between the side wall and the bottom wall, a rotating shaft 23 is embedded in the bottom wall through a spline, and the bottom wall is rotatably connected to the outer drum through the rotating shaft, specifically, a shaft sleeve 11 is embedded in the outer drum, and the rotating shaft passes through the shaft sleeve and is connected to a power mechanism (not shown in the figure), and the inner drum is driven to rotate relative to the outer drum through the power mechanism, and a bearing 12 is arranged between the rotating shaft and the shaft sleeve to facilitate the relative rotation of the two, an end cover ring 24 is arranged at the other end of the side wall, and an inner drum opening 25 is formed in the center of the end cover ring, and the outer drum is provided with an outer drum opening 13 corresponding to the inner drum opening, in order to slow down the rotation of the inner drum In order to reduce vibration, a plurality of damping mechanisms are evenly distributed on the end cover ring. Specifically, a plurality of accommodating grooves 26 are provided on the end cover ring, and a detachable end cover 27 is provided for each accommodating groove. The space between the accommodating groove and the end cover is partitioned into an outer ring cavity 281 and an inner ring cavity 282. The outer ring cavity and the inner ring cavity are separated but connected by one or more narrow channels 283. Specifically, a circle of annular partition plates 271 are provided on the end cover, and a plurality of evenly distributed notches are provided on the partition plates to form the channels. One or more damping components with relatively large density are provided in the outer ring cavity, such as metal components such as metal balls. A viscous liquid is provided in the inner ring cavity. The viscous liquid can enter the outer ring cavity from the inner ring cavity through the channel and flow back to the inner ring cavity. The viscous liquid can effectively reduce the collision noise between the damping components and between the damping components and the outer ring cavity wall.

[0029] The outer surface of the bottom wall is provided with a plurality of staggered shaped reinforcing ribs 221, the inner wall surface is provided with a plurality of evenly distributed stirring protrusions 222 extending radially outward from the center; the inner wall of the side wall is provided with a plurality of tapered convex strips 211 extending in the axial direction, the side surfaces of the tapered convex strips are curved, the radial free ends are narrowed, and water-permeable holes 212 are provided in the recesses formed between adjacent convex strips, and the outer wall of the side wall is provided with a plurality of criss-crossing reinforcing ribs, wherein the tapered convex strips on the inner wall of the side wall correspond to the recesses formed on the outer wall of the side wall, and the longitudinally extending reinforcing ribs are located in the recesses of the outer wall and are arranged corresponding to the radial free ends of the tapered convex strips and are consistent with the extension direction of the radial free ends of the tapered convex strips.

[0030] The outer cylinder is provided with a cleaning mechanism for cleaning the outer cylinder wall of the inner cylinder.

[0031] In this embodiment, the cleaning mechanism includes a cleaning component provided on the outer cylinder and a driving mechanism for driving the cleaning component to move closer to or away from the inner cylinder. Preferably, the cleaning component is a brush component 3 with bristles 32 .

[0032] In this embodiment, the driving mechanism includes a driving motor 41 fixedly connected to the outer cylinder, a driving screw 42 arranged at the output end of the driving motor, and a cleaning component mounting seat 31 threadedly matched with the driving screw. The cleaning component mounting seat is provided with bristles to form the brush-like component, and the cleaning component mounting seat can slide relative to the outer cylinder in the extension direction of the driving screw.

[0033] Preferably, the outer cylinder is provided with a motor mounting seat 43, the outer cylinder is provided with a mounting port, the motor mounting seat is fixed at the mounting port by screws and is sealed with the mounting port, the drive motor is fixed on the motor mounting seat, specifically, the motor mounting seat is provided with a plurality of motor pillars 431, the drive motor is fixed on the motor pillars, the motor mounting seat is provided with a screw through hole 432, and the drive screw passes through the screw through hole.

[0034] The cleaning component mounting seat is slidably matched with the motor mounting seat. Specifically, the motor mounting seat is provided with a guide hole 44, and the cleaning component mounting seat is provided with a guide column 45 that cooperates with the guide hole. The cleaning component mounting seat and the motor mounting seat are slidably matched by the guide column extending and retracting in the guide hole.

[0035] The motor mounting seat is provided with a stroke control device for controlling the stroke of the cleaning component. In this embodiment, the stroke control device is a stroke switch 46 for controlling the stroke of the cleaning component mounting seat. The motor mounting seat is provided with a stroke switch bracket 47, and the stroke switch is arranged on the stroke switch bracket.

[0036] Preferably, in some embodiments, at least two installation positions may be provided on the travel switch bracket, and the travel switch may be detachably installed on the installation positions, so that the position of the travel switch may be adjusted on the travel switch bracket.

[0037] In this embodiment, in addition to the above structure, the driving mechanism may also use other suitable structural forms.

[0038] In this embodiment, the outer cylinder includes a front cylinder 14 and a rear cylinder 15. After the front cylinder and the rear cylinder are docked, they are first connected by a snap-fit ​​structure 16 and then locked by a screw (not shown). The end face of the docking point of one of the front cylinder and the rear cylinder is provided with a circle of slots, and the other is provided with a circle of plug-in parts 17. When the front cylinder and the rear cylinder are docked, the plug-in parts are inserted into the slots. In order to ensure a sealed connection, a sealing ring can be provided between the slots and the plug-in parts.

[0039] The working process of the present application is as follows: when the drum needs to be self-cleaned, the driving motor works to drive the driving screw to rotate, the driving screw drives the cleaning component mounting seat to slide relatively, the travel switch controls its travel so that the cleaning component contacts the wall of the inner drum, and then controls the inner drum to rotate, and the cleaning component cleans the wall of the inner drum; after cleaning is completed, the driving motor works to drive the driving screw to rotate in the opposite direction, the driving screw drives the cleaning component mounting seat to slide in the opposite direction, and the travel switch controls its travel so that the cleaning component is out of contact with the wall of the inner drum, thereby facilitating the rotation of the inner drum to clean clothes and other operations.

[0040] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A washing machine with a self-cleaning drum function, comprising an outer drum and an inner drum, wherein the inner drum is arranged in the outer drum and can rotate relative to the outer drum, and the outer drum is provided with a cleaning mechanism for cleaning the outer drum wall of the inner drum, characterized in that: The cleaning mechanism comprises a cleaning component arranged on the outer cylinder and a driving mechanism for driving the cleaning component to move closer to or away from the inner cylinder.

2. The washing machine with drum self-cleaning function according to claim 1, characterized in that: The driving mechanism includes a driving motor fixedly connected to the outer cylinder, a driving screw arranged at the output end of the driving motor, and a cleaning component mounting seat threadedly matched with the driving screw, and the cleaning component mounting seat can slide relative to the outer cylinder in the extension direction of the driving screw.

3. The washing machine with drum self-cleaning function according to claim 2, characterized in that: The outer cylinder is provided with a motor mounting seat, the driving motor is arranged on the motor mounting seat, and the cleaning component mounting seat is slidably matched with the motor mounting seat.

4. The washing machine with drum self-cleaning function according to claim 3, characterized in that: The motor mounting seat is provided with a guide hole, and the cleaning component mounting seat is provided with a guide column matched with the guide hole, and the cleaning component mounting seat and the motor mounting seat are slidably matched by the guide column extending and retracting in the guide hole.

5. The washing machine with drum self-cleaning function according to claim 3, characterized in that: The motor mounting seat is provided with a motor support, the driving motor is fixed on the motor support, the motor mounting seat is provided with a screw through hole, and the driving screw passes through the screw through hole.

6. The washing machine with drum self-cleaning function according to any one of claims 1 to 5, characterized in that: It also includes a stroke control device for controlling the stroke of the cleaning component.

7. The washing machine with drum self-cleaning function according to any one of claims 3 to 5, characterized in that: The motor mounting seat is provided with a travel switch for controlling the travel of the cleaning component mounting seat.

8. The washing machine with drum self-cleaning function according to claim 7, characterized in that: The motor mounting seat is provided with a travel switch bracket, and the travel switch is arranged on the travel switch bracket.

9. The washing machine with drum self-cleaning function according to claim 8, characterized in that: The travel switch is adjustable in position and arranged on the travel switch bracket.

10. The washing machine with drum self-cleaning function according to any one of claims 1 to 5, characterized in that: The cleaning component is a brush component.

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