Washing drum assembly and washing machine including the same

Abstract

The present invention provides a washing drum assembly and a washing machine including the same. The washing drum assembly includes: a washing drum having a single-tube structure and a washing chamber formed therein; a drive shaft having a first end fixedly connected to the bottom wall of the washing drum, for supporting the washing drum and driving the washing drum to rotate; a water inlet channel formed inside the drive shaft, the water inlet channel communicating with the washing chamber; a water inlet end cap rotatably connected to the second end of the drive shaft, for connecting the water inlet channel with a water inlet pipe outside the washing drum; a drainage channel, the first end of the drainage channel communicating with the washing chamber and the second end extending from the second end of the drive shaft; and a drainage end cap rotatably connected to the second end of the drainage channel, for connecting the drainage channel with a drainage pipe outside the washing drum. The present invention can save washing water and prevent bacteria from growing in the washing drum, making the washing machine healthier.

Description

Technical Field

[0001] The present invention relates to the technical field of washing machines, and in particular to a washing drum assembly and a washing machine comprising the same. Background Art

[0002] With technological advancements, washing machines are moving towards larger capacity and higher speeds to achieve greater washing capacity and better results. Existing washing machines use an inner and outer drum structure, with holes punched in the inner drum to connect to the outer drum. This structure significantly limits capacity increases, significantly increasing the size and weight of the washing machine. Furthermore, the cavity between the inner and outer drums is prone to dirt and bacteria, making it difficult to clean and potentially harmful to user health. Summary of the Invention

[0003] In view of this, the present invention provides a washing drum assembly and a washing machine including the same, which are used to at least solve the technical problem of bacteria easily breeding between the inner and outer drums in the prior art. Specifically:

[0004] In a first aspect, the present invention provides a washing drum assembly comprising:

[0005] The washing drum is a single-cylinder structure with a washing cavity formed therein;

[0006] A drive shaft, wherein a first end of the drive shaft is fixedly connected to the washing tub,

[0007] A water inlet channel is formed inside the driving shaft, and one end of the water inlet channel is connected to the washing chamber.

[0008] A water inlet connector is provided at the second end of the water inlet channel, and the water inlet connector is used to connect to the external water inlet pipe of the washing tub;

[0009] A drainage channel, at least a portion of which is disposed within the drive shaft, wherein a first end of the drainage channel is connected to the washing chamber, and a second end is provided with a drainage connector for connecting to a drainage pipe outside the washing tub.

[0010] Further optionally, the water inlet connector is a water inlet end cover, and the water inlet end cover is rotatably connected to the second end of the drive shaft;

[0011] The drainage connector is a drainage end cover, and the drainage end cover is rotatably connected to the second end of the drainage channel.

[0012] Further optionally, the drive shaft is a hollow shaft, and the inner cavity of the drive shaft constitutes the water inlet channel.

[0013] The first end of the driving shaft is fixedly connected to the bottom wall of the washing tub, and a plurality of water inlets communicating with the interior of the washing tub are formed on the side wall near the first end of the driving shaft.

[0014] A mounting hole is further provided on the side wall of the driving shaft, and the drainage channel is penetrated into the driving shaft through the mounting hole and is sealed with the mounting hole.

[0015] Further optionally, a drain outlet is provided on the side wall of the washing tub, and the first end of the drainage channel is connected to the drain outlet.

[0016] Further optionally, the outer wall of the washing tub is provided with a drainage channel, the drain port is communicated with the drainage channel, and the drainage channel extends along the outer wall of the washing tub.

[0017] The drainage channel is provided with a drainage interface for connecting with the drainage flow channel.

[0018] Further optionally, the drainage channel extends axially along the washing tub, and the inner surface of the drainage channel away from the washing tub is configured as an inclined surface, forming a gradually widening structure.

[0019] The drainage interface is formed at a wider end of the drainage channel.

[0020] Further optionally, the drainage interface is connected to a water pump, and the water pump is connected to the first end of the drainage channel.

[0021] Further optionally, the inner wall of the washing tub is provided with a lifting rib, a cavity is formed inside the lifting rib, a through hole is provided on the lifting rib, and the drainage interface is connected to the inside of the lifting rib.

[0022] Further optionally, an angle detection device is provided on the drive shaft, and the angle detection device is used to detect the angle of the drive shaft, and enables the drive shaft to control its angle when stationary through a control system to ensure that the drainage interface is located at the lowest point.

[0023] Further optionally, the bottom wall of the washing tub includes an inner bottom wall and an outer bottom wall, a water inlet cavity is formed between the inner bottom wall and the outer bottom wall, and the water inlet channel is connected to the water inlet cavity.

[0024] A water hole is provided on the bottom wall of the inner layer, and the water inlet cavity is connected with the washing cavity through the water hole.

[0025] Further optionally, the water inlet end cover is rotatably connected to the drive shaft via a bearing and a seal; and / or,

[0026] The drainage end cover is rotatably connected to the drainage channel through a bearing and a sealing member.

[0027] Further optionally, the drainage end cover is arranged inside the water inlet end cover, and the drainage pipe passes through the water inlet end cover and is connected to the drainage end cover.

[0028] Further optionally, the washing tub assembly further includes a supporting structure for supporting the washing tub, and the driving shaft is rotatably connected to the supporting structure.

[0029] In a second aspect, the present invention provides a washing machine comprising the above-mentioned washing tub assembly.

[0030] The present invention can save washing water and reduce the volume of the washing drum by setting a single drum structure. In addition, the single drum design avoids the breeding of bacteria in the gap between the inner and outer drums, making the washing machine healthier and providing a better user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the accompanying drawings. The drawings described below are only some embodiments of the present disclosure, and it is obvious to those skilled in the art that other drawings can be derived from these drawings without inventive effort.

[0032] Figure 1 A schematic structural diagram of a washing drum assembly according to an embodiment of the present invention is shown;

[0033] Figure 2 An enlarged view of the assembled state of the second end portion of the drive shaft is shown;

[0034] Figure 3 Shown is a schematic diagram of the structure of the inner bottom wall of the washing drum.

[0035] In the picture:

[0036] 1. Washing drum; 11. Inner bottom wall; 111. Water hole; 2. Outer bottom wall; 3. Support plate; 6. Water inlet end cover; 7. Drain end cover; 9. Drive shaft; 10. Drain channel; 12. Water pump; 13. Drain channel; 14. Lifting rib. DETAILED DESCRIPTION

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0038] The terms used in the embodiments of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The singular forms "a," "the," and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates otherwise. "A plurality" generally includes at least two, but does not exclude the inclusion of at least one.

[0039] It should be understood that the term "and / or" as used herein is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0040] It should also be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or system. In the absence of further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the product or system comprising the element.

[0041] The present invention utilizes a single-drum washing drum, eliminating the outer drum, to save washing water and reduce the size of the washing drum. Furthermore, the single-drum design prevents bacteria from growing in the gap between the inner and outer drums, making the washing machine healthier and providing a better user experience. The present invention is described in detail below with reference to specific embodiments:

[0042] like Figure 1 、 Figure 2 As shown, the present invention provides a washing drum assembly, comprising:

[0043] The washing drum 1 is a single-cylinder structure with a washing chamber formed therein for accommodating laundry and washing water;

[0044] The first end of the drive shaft 9 is fixedly connected to the bottom wall of the washing tub 1, and is used to support the washing tub 1 and drive the washing tub 1 to rotate. The axis of the drive shaft 9 is collinear with the axis of the washing tub 1.

[0045] A water inlet channel is formed inside the drive shaft 9. The first end of the water inlet channel is connected to the washing chamber for adding washing water to the washing tub 1. A water inlet connector is provided at the second end of the water inlet channel, which is connected to the water inlet pipe outside the washing tub 1 through the water inlet connector.

[0046] The drainage channel 10, at least a portion of which is arranged inside the drive shaft 9 and can rotate synchronously with the drive shaft 9, has a first end connected to the washing chamber, and a second end provided with a drainage connector for connecting to a drainage pipe outside the washing tub 1.

[0047] Preferably, the water inlet connector is a water inlet end cover 6 rotatably connected to the second end of the drive shaft 9 ; the drainage connector is a drainage end cover 7 rotatably connected to the second end of the drainage channel 10 .

[0048] The drive shaft 9 is a hollow shaft, and the cavity within it forms a water inlet channel. Preferably, the first end of the drive shaft 9 is fixedly connected to the bottom wall of the washing tub 1. The first end is a closed end for fixed connection to the washing tub 1. A plurality of water inlets are formed on the sidewall near the first end, communicating with the interior of the washing tub 1. Wash water flows out through the water inlets and into the washing chamber. The second end of the drive shaft 9 is an open end, which can be connected to an external water inlet pipe via the water inlet end cap 6.

[0049] The water inlet cover 6 is preferably constructed as a cylindrical structure, one end of which is fitted over the second end of the drive shaft 9 and rotatably connected to the drive shaft 9. Preferably, the water inlet cover 6 is connected to the drive shaft 9 via a bearing, and a sealing structure is provided at the connection to prevent water leakage. The second end of the water inlet cover 6 is used to connect to the water inlet pipe. Preferably, the second end of the water inlet cover 6 has a tapered structure, which reduces the diameter of the second end to facilitate connection with the water inlet pipe. The tapered structure can be, for example, a gradually narrowing structure or a stepped structure.

[0050] The side wall of the drive shaft 9 is also provided with a mounting hole, and the drainage channel 10 is passed through the mounting hole into the drive shaft 9 and is sealed at the mounting hole. The drainage channel 10 includes a pipe, the first end of the pipe is connected to the washing chamber of the washing tub 1, and the other end is passed through the drive shaft 9 through the mounting hole and extends from the second end of the drive shaft 9 to the outside of the drive shaft 9. The drainage end cover 7 is rotatably connected to the second end of the pipe. The drainage end cover 7 is preferably a cylindrical structure, one end of which is fitted onto the second end of the pipe and is rotatably connected to the pipe. Preferably, the drainage end cover 7 is connected to the ground through a bearing, and a sealing structure is provided at the connection to prevent water leakage at the connection. The second end of the drainage end cover 7 is used to connect to the drain pipe. Preferably, the second end of the drainage end cover 7 is a necking structure, which reduces the diameter of its second port to facilitate connection to the drain pipe. The necking structure can be, for example, a gradually shrinking structure, or can be constructed as a stepped structure, etc. The drainage end cover 7 is arranged in the water inlet end cover 6, and a gap is formed between the drainage end cover 7 and the second end of the drive shaft 9 to ensure that a water inlet flow channel can be formed between the drainage end cover 7 and the water inlet end cover 6 and between the drainage end cover 7 and the drive shaft 9.

[0051] A drain port is provided on the side wall of the washing tub 1, and the first end of the drainage channel 10 is connected to the drain port. Preferably, a drainage channel 13 is formed on the outer wall of the washing tub 1, and the drainage channel 13 extends along the axial direction of the washing tub 1. The drain port is connected to the drainage channel 13. Preferably, multiple drain ports can be provided along the extension direction of the drainage channel 13 to increase the drainage flow rate.

[0052] Drain channel 13 is provided with a drain interface for connecting to drain channel 10. When draining, the drain interface is at the lowest point, thereby ensuring that the wash water can flow to the drain interface. Preferably, drive shaft 9 is provided with an angle detection device for detecting the angle of drive shaft 9 and controlling the rotation of drive shaft 9 by connecting to a controller to ensure that the drain interface is at the lowest point each time it stops rotating.

[0053] Furthermore, the surface of the drainage channel 13 away from the washing tub 1 is configured as an inclined surface, so that the drainage channel 13 forms a structure that gradually widens along the axial direction of the washing tub 1, and the drainage interface is formed at the wider end of the drainage channel 13. The inclined surface allows the wash water to flow to the drainage interface on its own, avoiding the formation of wash water residue.

[0054] Furthermore, the drainage interface is connected to a water pump 12 , which is connected to the first end of the drainage channel 10 . When drainage is required, the water pump 12 is started to pump washing water into the drainage channel 10 .

[0055] The inner wall of the washing tub 1 is provided with lifting ribs 14 , and a plurality of lifting ribs 14 are provided. The plurality of lifting ribs 14 are evenly distributed along the circumference of the inner wall of the washing tub 1 . The lifting ribs 14 can be installed on the inner wall of the washing tub 1 by means of snap connection or the like.

[0056] Preferably, one of the lifting ribs 14 is provided at the location of the drainage channel 13, a cavity is formed inside the lifting rib 14, a through hole is provided on the lifting rib 14, and the drainage interface is connected to the interior of the lifting rib 14. Preferably, a filter is provided at the through hole on the lifting rib 14 to filter the wash water and prevent debris and other debris from clogging the drainage channel 10.

[0057] The bottom wall of the washing tub 1 includes an inner bottom wall 11 and an outer bottom wall 2. A water inlet cavity is formed between the inner bottom wall 11 and the outer bottom wall 2. The water inlet channel is connected to the water inlet cavity. Preferably, the first end of the drive shaft 9 extends into the water inlet cavity, and its end is connected to the inner bottom wall 11. At the same time, the outer bottom wall 2 is connected to the side wall of the drive shaft 9. The water inlet on the drive shaft 9 is located in the water inlet cavity. Figure 3As shown, the inner bottom wall 11 is provided with a water hole 111, and the water inlet cavity is connected to the washing cavity through the water hole 111. Preferably, the inner bottom wall 11 is provided with multiple concave structures, and the water holes 111 are distributed on the concave structures. Furthermore, multiple water holes 111 are evenly distributed along the edge of the inner bottom wall 11, preferably in the form of elongated holes, to ensure that the wash water can flow completely into the washing cavity and avoid residual wash water in the water inlet cavity. Preferably, the water inlet cavity is coated with a superhydrophobic coating to further ensure that no wash water is retained in the water inlet cavity and to prevent bacterial growth in the water inlet cavity.

[0058] Preferably, the washing tub assembly further comprises a support structure for supporting the washing tub 1, and the drive shaft 9 is rotatably connected to the support structure, for example, the support structure is a support plate 3. Alternatively, the support structure may be part of the washing machine housing, that is, the support plate 3 may form an integral structure with the housing.

[0059] The present invention also provides a washing machine including the above-mentioned washing drum assembly. The washing drum 1 adopts a design without an outer drum, thereby preventing residual wash water between the inner and outer drums from breeding bacteria. Furthermore, the washing machine can reduce the amount of wash water used and the size of the washing machine. The washing machine of the present invention has a simple structure, occupies a small space, is applicable in many scenarios, is healthier, and provides a better user experience.

[0060] While the exemplary embodiments of the present disclosure have been specifically illustrated and described above, it should be understood that the present disclosure is not limited to the detailed structures, configurations, or implementations described herein; rather, the present disclosure is intended to encompass various modifications and equivalent configurations within the spirit and scope of the appended claims.

Claims

1. A washing drum assembly, characterized in that: include: The washing drum is a single-cylinder structure with a washing cavity formed therein; A drive shaft, wherein a first end of the drive shaft is fixedly connected to the washing tub, A water inlet channel is formed inside the driving shaft, and one end of the water inlet channel is connected to the washing chamber. A water inlet connector is provided at the second end of the water inlet channel, and the water inlet connector is used to connect to the external water inlet pipe of the washing tub; a drainage channel, at least a portion of which is disposed within the drive shaft, a first end of the drainage channel being in communication with the washing chamber, and a second end of the drainage channel being provided with a drainage connector for connecting to a drainage pipe outside the washing tub; The inner wall of the washing tub is provided with a lifting rib, the lifting rib is provided with a through hole communicating with the washing cavity, and a cavity communicating with the through hole is formed inside the lifting rib; A drainage channel and a drainage outlet are provided on the outer wall of the washing drum. One end of the drainage outlet is connected to the cavity of the lifting rib, and the other end is connected to the drainage channel. A drainage interface is provided on the drainage channel, and the drainage interface is connected and connected to the first end of the drainage flow channel.

2. The washing tub assembly according to claim 1, wherein: The water inlet connector is a water inlet end cover, and the water inlet end cover is rotatably connected to the second end of the drive shaft; The drainage connector is a drainage end cover, and the drainage end cover is rotatably connected to the second end of the drainage channel.

3. The washing tub assembly according to claim 2, wherein: The water inlet end cover is rotatably connected to the drive shaft via a bearing and a seal; and / or, The drainage end cover is rotatably connected to the drainage channel through a bearing and a sealing member.

4. The washing tub assembly according to claim 3, wherein: The drainage end cover is arranged inside the water inlet end cover, and the drainage pipe passes through the water inlet end cover and is connected to the drainage end cover.

5. The washing tub assembly according to claim 4, characterized in that: The washing tub assembly further includes a supporting structure for supporting the washing tub, and the driving shaft is rotatably connected to the supporting structure.

6. The washing tub assembly according to claim 1, wherein: The drive shaft is a hollow shaft, and the internal cavity of the drive shaft constitutes the water inlet channel. The first end of the driving shaft is fixedly connected to the bottom wall of the washing tub, and a plurality of water inlets communicating with the interior of the washing tub are formed on the side wall near the first end of the driving shaft. A mounting hole is further provided on the side wall of the driving shaft, and the drainage channel is penetrated into the driving shaft through the mounting hole and is sealed with the mounting hole.

7. The washing tub assembly according to claim 6, characterized in that: The drainage channel extends along the outer wall of the washing tub.

8. The washing tub assembly according to claim 7, wherein: The drainage channel extends axially along the washing tub, and the inner surface of the drainage channel away from the washing tub is configured as an inclined surface, forming a gradually widening structure. The drainage interface is formed at a wider end of the drainage channel.

9. The washing tub assembly according to claim 8, characterized in that: The drainage interface is connected to a water pump, and the water pump is connected to the first end of the drainage channel.

10. The washing tub assembly according to claim 1, wherein: The drive shaft is provided with an angle detection device, which is used to detect the angle of the drive shaft and enable the drive shaft to control its angle when stationary through a control system to ensure that the drainage interface is located at the lowest point.

11. The washing drum assembly according to any one of claims 1 to 10, characterized in that: The bottom wall of the washing tub includes an inner bottom wall and an outer bottom wall, a water inlet cavity is formed between the inner bottom wall and the outer bottom wall, and the water inlet channel is connected to the water inlet cavity. A water hole is provided on the bottom wall of the inner layer, and the water inlet cavity is connected with the washing cavity through the water hole.

12. A washing machine, characterized in that: The washing drum assembly comprises the washing drum assembly according to any one of claims 1 to 11.

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