Drum water inlet structure and drum washing machine

Abstract

The present invention discloses a drum water inlet structure and a drum washing machine. The drum water inlet structure includes a drum shaft with a hollow interior forming a water inlet channel and a water inlet pipe. The water outlet end of the water inlet pipe is provided with a water outlet adapter. The water outlet adapter is provided with a transfer chamber connected to the water inlet channel. The transfer chamber is provided with a stirring structure for stirring the incoming water flow. By providing the stirring structure in the transfer chamber, the stirring structure can stir the incoming water flow, break up the incoming water flow, increase the turbulence of the incoming water flow, achieve full mixing of the incoming water flow and detergent, and improve the washing effect. A drum washing machine is also provided, including a drum, a drum support and a motor. The drum support is provided on the outside of the drum, the motor is provided on the drum support, and the drum water inlet structure is also provided. The drum shaft is installed on the bottom of the drum, the water outlet end of the drum shaft is connected to the drum, the water inlet end of the drum shaft passes through the drum support and the motor and is inserted into the transfer chamber. The water outlet adapter is fixed to the drum support.

Description

Technical Field

[0001] The present invention belongs to the technical field of household appliances, and in particular relates to a drum water inlet structure and a drum washing machine. Background Art

[0002] In the prior art, a drum washing machine generally includes a drum for holding clothes, a drum support member installed to support the drum, and a motor. A drum shaft is provided at the bottom of the drum and extends in the left and right directions of the drum. The motor is provided on the drum support member, and the drum shaft passes through the drum support member and is connected to the motor. The motor drives the drum shaft to rotate, thereby driving the drum to rotate, so that the drum beats and washes the clothes. The drum support member includes an outer drum for holding washing water, and the drum is rotatably assembled in the outer drum. A dehydration hole is provided on the drum, so that the water in the outer drum flows into the drum through the dehydration hole to soak the clothes in the drum, the water in the drum flows out to the outer drum through the dehydration hole, and the water on the clothes in the drum is discharged to the outer drum through the dehydration hole when the drum rotates at high speed, so as to achieve the purpose of washing the clothes.

[0003] In an existing drum washing machine, the internal hollow space of the drum shaft forms a water inlet channel, the water outlet end of the water inlet channel is connected to the inside of the drum, and the water inlet end of the water inlet channel is connected to the water outlet end of the water inlet pipe, so that water is supplied to the drum through the water inlet pipe and the water inlet channel; a water outlet adapter is provided at the water outlet end of the water inlet pipe, and a transfer chamber connected to the water inlet channel is provided in the water outlet adapter, the water inlet pipe supplies water to the transfer chamber, the transfer chamber supplies water to the water inlet channel, and the water inlet channel supplies water to the drum. Since there is no stirring structure in the transfer chamber to stir the inlet water flow, the turbulence of the inlet water flow is relatively small, and it is not easy to fully mix with the detergent, which reduces the washing effect. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing technology and provide a drum water inlet structure and a drum washing machine, so that a stirring structure for stirring the incoming water flow is arranged in the transfer chamber. The stirring structure can stir the incoming water flow, increase the turbulence of the incoming water flow, achieve full mixing of the incoming water flow and detergent, and improve the washing effect.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] The present invention provides a water inlet structure of a drum, comprising a cylindrical shaft with a hollow interior forming a water inlet channel and a water inlet pipe, a water outlet adapter being provided at the water outlet end of the water inlet pipe, a transfer cavity being provided in the water outlet adapter and being connected to the water inlet channel, and a stirring structure being provided in the transfer cavity for stirring the inlet water flow.

[0007] In an embodiment of the present invention, the water outlet adapter is hemispherical, and a water outlet is provided at the center of the diameter end face of the water outlet adapter. The water outlet end of the water inlet pipe is embedded in the water outlet adapter in a direction perpendicular to the axis of the water outlet adapter, and the stirring structure is opposite to the water outlet of the water outlet adapter and the water outlet of the water inlet pipe.

[0008] In an embodiment of the present invention, the stirring structure is a water wheel structure, and the rotating shaft of the water wheel structure is rotatably arranged on the inner wall of the water outlet adapter, and the rotating shaft extends horizontally from one side of the inner wall of the water outlet adapter across the water outlet of the water outlet adapter to the opposite side of the inner wall of the water outlet adapter.

[0009] Preferably, the water outlet of the water outlet adapter and the water outlet of the water inlet pipe are both circular, and the center lines of the water outlet of the water outlet adapter and the water outlet of the water inlet pipe are both perpendicular to the axis of the rotating shaft.

[0010] In an embodiment of the present invention, a plurality of stirring blades are distributed on the outer peripheral wall of the rotating shaft at intervals along the circumferential direction of the rotating shaft.

[0011] In an embodiment of the present invention, the stirring blades are plate-shaped structures and gradually bend and extend outward from the outer peripheral wall of the rotating shaft, and all the stirring blades have the same bending direction.

[0012] In an embodiment of the present invention, the stirring blade is divided into a first section blade, a second section blade and a third section blade along the bending direction of the stirring blade. The sizes of the first section blade and the third section blade along the bending direction of the stirring blade remain different, and the size of the second section blade along the bending direction of the stirring blade gradually decreases.

[0013] In an embodiment of the present invention, a water stirring chamber is formed between two adjacent stirring blades, and the size of the water stirring chamber gradually increases along the bending direction of the stirring blades.

[0014] In an embodiment of the present invention, a reinforcing rib is provided between two adjacent stirring blades.

[0015] In an embodiment of the present invention, the reinforcing rib is a plate-like structure, and the reinforcing rib extends along the bending direction of the stirring blade in the water stirring chamber. The reinforcing rib is respectively arranged to fit the outer peripheral wall of the rotating shaft and two adjacent stirring blades.

[0016] The present invention also provides a drum washing machine, comprising a drum, a drum support and a motor, wherein the drum support is arranged on the outside of the drum, and the motor is arranged on the drum support. The present invention also provides a drum washing machine, comprising a drum, a drum support and a motor, wherein the drum support is arranged on the outside of the drum, and the motor is arranged on the drum support. The present invention also provides a drum washing machine, comprising a drum shaft mounted on the bottom of the drum, a water outlet end of the drum shaft being connected to the drum, the water inlet end of the drum shaft passing through the drum support and the motor and being inserted into the transfer cavity, and the water outlet adapter being fixed on the drum support.

[0017] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0018] By arranging a stirring structure in the transfer chamber, the stirring structure can stir the incoming water flow, break up the incoming water flow, increase the turbulence of the incoming water flow, achieve full mixing of the incoming water flow and detergent, and improve the washing effect.

[0019] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, as part of this disclosure, are intended to provide a further understanding of the disclosure. The exemplary embodiments of the disclosure and their descriptions are intended to explain the disclosure and do not constitute undue limitations thereon. Obviously, the drawings described below are merely examples, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0021] Figure 1 is a structural schematic diagram of a water inlet structure of a drum provided by an embodiment of the present invention;

[0022] Figure 2 This is a schematic structural diagram of a water outlet adapter provided by an embodiment of the present invention from one perspective;

[0023] Figure 3 This is a structural schematic diagram of the water outlet adapter provided by an embodiment of the present invention from another perspective;

[0024] Figure 4 yes Figure 3 Cross-section at point A;

[0025] Figure 5 is a structural schematic diagram of a water wheel structure provided by an embodiment of the present invention;

[0026] Figure 6 It is a schematic structural diagram of a stirring blade provided in an embodiment of the present invention.

[0027] In the figure: 1-cylinder shaft; 2-water inlet pipe; 23-water outlet adapter; 231-transfer chamber; 232-water outlet of the water outlet adapter; 24-water outlet of the water inlet pipe; 7-motor; 8-drum support; 9-motor support structure; 19-stirring structure; 191-water wheel structure; 1911-rotating shaft; 1912-stirring blades; 1912a-first section blades; 1912b-second section blades; 1912c-third section blades; 20-water stirring chamber; 30-reinforcement ribs.

[0028] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0030] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0031] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0032] like Figure 1 and Figure 2 As shown, the present invention provides a water inlet structure of a drum, including a cylindrical shaft 1 with a hollow interior forming a water inlet channel and a water inlet pipe 2, a water outlet adapter 23 is provided at the water outlet end of the water inlet pipe, a transfer chamber 231 connected to the water inlet channel is provided in the water outlet adapter 23, and a stirring structure 19 for stirring the inlet water flow is provided in the transfer chamber 231.

[0033] In the embodiment of the present invention, a stirring structure 19 is provided in the transfer chamber 231. The stirring structure 19 can stir the incoming water flow, break up the incoming water flow, increase the turbulence of the incoming water flow, achieve full mixing of the incoming water flow and the detergent, and improve the washing effect.

[0034] The water outlet adapter 23 is integrally formed with the water inlet pipe 2, reducing resistance at the transition point between the water outlet adapter 23 and the water inlet, and improving the sealing between the water outlet adapter 23 and the water inlet pipe 2 to prevent the inlet water flow from leaking out. The reason why the water outlet adapter 23 is provided at the water outlet end of the water inlet pipe is that the water outlet adapter 23 can change the flow direction of the inlet water flow, so that the inlet water flow from the water inlet pipe 2 can enter the water inlet flow channel in the cylindrical shaft 1 more smoothly.

[0035] It should be noted that the water inlet pipe 2 includes a first section of the water inlet pipe and a second section of the water inlet pipe. The first section of the water inlet pipe is a plastic pipe, and the second section of the water inlet pipe is a rubber pipe. The water outlet of the first section of the water inlet pipe has a water outlet adapter 23, and the water inlet of the first section of the water inlet pipe has a rubber joint. The rubber joint of the first section of the water inlet pipe is integrally formed with the second section of the water inlet pipe. The second section of the water inlet pipe in the water inlet pipe 2 adopts a rubber pipe, which can bend part of the water inlet pipe and flexibly change the position of the water inlet pipe 2.

[0036] like Figure 2 、 Figure 3 and Figure 4 As shown, in an embodiment of the present invention, the water outlet adapter 23 is hemispherical, and a water outlet connected to the water inlet channel is provided on the diameter end face of the water outlet adapter 23. The water outlet 232 of the water outlet adapter is located at the center of the diameter end face, and the water outlet end of the water inlet pipe is embedded in the water outlet adapter 23 in a direction perpendicular to the axis of the water outlet adapter, and the stirring structure 19 is opposite to the water outlet 232 of the water outlet adapter and the water outlet 24 of the water inlet pipe.

[0037] In the embodiment of the present invention, the water outlet adapter 23 is hemispherical, and the inner wall of the water outlet adapter 23 is arc-shaped. The arc-shaped inner wall can reduce the friction resistance to the incoming water flow;

[0038] The water outlet adapter 23 is hemispherical, having an end face where the diameter is located. The end face where the diameter is located is called the diameter end face, which is the end face with the largest size of the water outlet adapter 23. The diameter end face is annular, and the inner periphery of the diameter end face forms a circular water outlet 232 of the water outlet adapter.

[0039] The stirring structure 19 is provided at the water outlet 232 of the water outlet adapter. After the inlet water flows into the transfer chamber 231, it is stirred by the stirring structure 19 at the water outlet 232 of the water outlet adapter, so that the inlet water flows from the transfer chamber 231 into the water inlet flow channel with a greater turbulence.

[0040] Preferably, the water outlet of the water outlet adapter and the water outlet of the water inlet pipe are both circular, and the center lines of the water outlet of the water outlet adapter and the water outlet of the water inlet pipe are both perpendicular to the axis of the rotating shaft.

[0041] like Figure 2 and Figure 5 As shown, in an embodiment of the present invention, the water wheel structure 191 includes a rotating shaft 1911 and a plurality of stirring blades 1912 rotatably provided on the inner wall of the water outlet adapter 23; the rotating shaft 1911 extends radially in the transfer cavity 231, and extends from the inner wall of one end of the water outlet adapter 23 to the inner wall of the opposite end of the water outlet adapter 23; the plurality of stirring blades 1912 are distributed on the outer peripheral wall of the rotating shaft 1911 at intervals along the circumference of the rotating shaft 1911.

[0042] In the embodiment of the present invention, the water wheel structure 191 specifically includes a rotating shaft 1911 that can rotate within the transfer chamber 231 and stirring blades 1912 that rotate with the rotating shaft 1911 and stir the incoming water flow. The rotating shaft 1911 extends radially within the transfer chamber 231. One end of the rotating shaft 1911 is rotatably connected to the inner wall of one end of the water outlet adapter 23. The other end of the rotating shaft 1911 is rotatably connected to the inner wall of the opposite end of the water outlet adapter 23. The rotating shaft 1911 is directly opposite the water outlet, so that the incoming water flow must first pass through the water flow structure before reaching the water outlet 232 of the water outlet adapter.

[0043] like Figure 2 and Figure 4 As shown, the water wheel structure has a rotating shaft rotatably disposed on the inner wall of the water outlet adapter, and the rotating shaft horizontally extends from one side of the inner wall of the water outlet adapter across the water outlet of the water outlet adapter to the opposite side of the inner wall of the water outlet adapter.

[0044] A plurality of stirring blades 1912 are provided on the outer peripheral wall of the rotating shaft 1911, wherein the stirring blades 1912 and the rotating shaft 1911 are integrally formed to reduce the resistance of the transition between the stirring blades 1912 and the rotating shaft 1911 to the incoming water flow;

[0045] A plurality of stirring blades 1912 are arranged in a circle on the outer peripheral wall of the rotating shaft 1911, which can achieve stirring of the incoming water flow over the largest area. In addition, the plurality of stirring blades 1912 are evenly distributed on the outer peripheral wall of the rotating shaft 1911, so that the stirring force for stirring the incoming water flow is relatively balanced.

[0046] Both ends of the rotating shaft 1911 are provided with mounting blocks, and the mounting blocks include a first mounting block and a second mounting block arranged coaxially. The first mounting block and the second mounting block are both disc-shaped. A second mounting block is provided on the disc surface of the first mounting block, which protrudes axially relative to the first mounting block. The second mounting block is provided with a socket along the axial direction. One end of the rotating shaft 1911 is inserted into the socket, and the first mounting block is embedded in the inner wall of the water outlet adapter 23. It can be rotated in the water outlet adapter 23 under the drive of the motor, thereby driving the rotating shaft 1911 to rotate; in addition, the first mounting block is provided with a through hole that is coaxial with and connected to the above-mentioned socket, and one end of the rotating shaft 1911 can be rotatably inserted into the socket, and the motor shaft of the motor is connected to the rotating shaft through the through hole to drive the rotating shaft to rotate.

[0047] Preferably, the water inlet end of the cylindrical shaft 1 is inserted into the transfer cavity 231 through the water outlet 232 of the water outlet adapter, and the water outlet end of the water inlet pipe is inserted into the transfer cavity 231 along the tangential direction; the water inlet of the water outlet of the water inlet pipe is set to flow into the water outlet adapter 23 along the tangential direction of the water outlet adapter, thereby reducing the resistance to water inflow at the transition between the water outlet of the water inlet pipe and the water outlet adapter 23, thereby improving the water inflow efficiency of the water inlet pipe;

[0048] Since the outlet end of the water inlet pipe is inserted into the transfer chamber 231 along a tangential direction, the water flow entering the transfer chamber 231 from the outlet end of the water inlet pipe can flow directly to the outlet 232 of the water outlet adapter, avoiding the inlet water flow having to make multiple turns before flowing out of the outlet 232 of the water outlet adapter.

[0049] In addition, the water inlet end of the cylindrical shaft 1 is inserted into the transfer cavity 231 through the water outlet of the water outlet adapter 23, thereby increasing the sealing between the cylindrical shaft 1 and the transfer cavity 231 and reducing the leakage of the inlet water flow.

[0050] In order to enable the stirring structure 19 to stir the incoming water flow of the transfer chamber 231 and increase the turbulence of the incoming water flow, the rotation direction of the water wheel structure 191 is set to be opposite to the flow direction of the incoming water flow, and the rotation of the water wheel structure 191 blocks and stirs the incoming water flow.

[0051] like Figure 2 and Figure 5 As shown, in the embodiment of the present invention, the stirring blades 1912 are plate-shaped structures and gradually bend and extend outward from the outer peripheral wall of the rotating shaft 1911, and the bending direction of all the stirring blades 1912 is consistent.

[0052] In the embodiment of the present invention, specifically, the stirring blades 1912 are plate-shaped structures. The stirring blades 1912 protrude outward relative to the outer peripheral wall of the rotating shaft 1911, thereby increasing the stirring arm length, thereby increasing the turbulence of the incoming water flow while increasing the stirring area for stirring the incoming water flow.

[0053] The stirring blades 1912 gradually bend outward from the outer peripheral wall of the rotating shaft 1911, and the bending direction is opposite to the direction of the water flow into the transfer chamber 231. The curved stirring blades 1912 can not only gather and block the incoming water flow, but also increase the friction between the stirring blades 1912 and the incoming water flow, thereby further increasing the turbulence of the incoming water flow.

[0054] like Figure 5 As shown, in an embodiment of the present invention, the stirring blade 1912 is divided into a first blade section 1912a, a second blade section 1912b and a third blade section 1912c along the bending direction of the stirring blade 1912. The sizes of the first blade section 1912a and the third blade section 1912c along the bending direction of the stirring blade 1912 remain different, and the size of the second blade section 1912b along the bending direction of the stirring blade 1912 gradually decreases.

[0055] In an embodiment of the present invention, the stirring blade 1912 is divided into three sections along the bending direction of the stirring blade 1912, wherein the dimensions of the first section blade 1912a and the third section blade 1912c along the bending direction of the stirring blade 1912 remain unchanged, and the dimension of the second section blade 1912b along the bending direction of the stirring blade 1912 gradually decreases. The second section blade 1912b has the largest degree of bending, which reduces the weight of the stirring blade 1912 on the one hand.

[0056] like Figure 6 As shown, in the embodiment of the present invention, a water stirring chamber 20 is formed between two adjacent stirring blades 1912 , and the size of the water stirring chamber 20 gradually increases along the bending direction of the stirring blades 1912 .

[0057] In an embodiment of the present invention, a plurality of stirring blades 1912 are distributed at intervals on the outer peripheral wall of the rotating shaft 1911, so that a stirring chamber 20 is formed between two adjacent stirring blades 1912. The stirring chamber 20 provides a space for the incoming water flow to reside, so that the incoming water flow can stay for a short time during stirring, and the stirring blades 1912 can fully stir the incoming water flow; since the bending degrees of the first blade 1912a, the second blade 1912b and the third blade 1912c are different, the size of the stirring chamber 20 along the bending direction of the stirring blade 1912 gradually increases, so that the incoming water flow in the stirring chamber 20 is stirred by the two adjacent stirring blades 1912.

[0058] In the embodiment of the present invention, a reinforcing rib 30 is provided between two adjacent stirring blades 1912 .

[0059] In an embodiment of the present invention, when the stirring blades 1912 are stirring the incoming water flow, the incoming water flow has a greater impact on the stirring blades 1912. Therefore, in order to increase the structural strength of the stirring blades 1912 and reduce costs, reinforcing ribs 30 are provided between two adjacent stirring blades 1912. The reinforcing ribs 30 can simultaneously enhance the strength of the two stirring blades 1912.

[0060] like Figure 6 As shown, in an embodiment of the present invention, the reinforcing rib 30 is a plate-like structure, and the reinforcing rib 30 extends along the bending direction of the stirring blade 1912 in the stirring chamber 20. The reinforcing rib 30 is respectively arranged to fit the outer peripheral wall of the rotating shaft 1911 and the two adjacent stirring blades 1912.

[0061] In an embodiment of the present invention, specifically, the reinforcing rib 30 is a plate-like structure. In order to maximize the structural strength of the stirring blade 1912, when the reinforcing rib 30 is set, the side wall of the reinforcing rib 30 corresponding to the outer peripheral wall of the rotating shaft 1911 and the two adjacent stirring blades 1912 is fitted with the outer peripheral wall of the rotating shaft 1911 and the two adjacent stirring blades 1912. Since the size of the stirring chamber 20 along the bending direction of the stirring blade 1912 gradually decreases, the size of the reinforcing rib 30 along the bending direction of the stirring blade 1912 gradually decreases.

[0062] like Figure 1 As shown, the present invention also provides a drum washing machine, including a drum, a drum support 8 and a motor 7. The drum support 8 is provided on the outside of the drum, and the motor 7 is provided on the drum support 8. It also includes a water inlet structure of the drum, and the drum shaft 1 is installed at the bottom of the drum. The water outlet end of the drum shaft 1 is connected to the drum, and the water inlet end of the drum shaft 1 passes through the drum support 8 and the motor 7 and is inserted into the transfer cavity 231, and the water outlet adapter 23 is fixed on the drum support 8.

[0063] In an embodiment of the present invention, the drum is a non-porous drum, the drum shaft is coaxially arranged at the bottom of the drum, the motor 7 is arranged on the drum support member through the motor support structure 9, and the motor support structure 9 is wrapped around the outside of the motor 7; the water outlet adapter 23 is fixed to the drum support member 8 through the motor support structure 9, and the water outlet adapter 23 is arranged outside the motor support structure 9; wherein the drum support member 8 includes an outer cylinder;

[0064] When water is entering, the water flows into the water inlet pipe 2, the transfer chamber 231, the drum shaft 1 in sequence, and finally enters the interior of the drum.

[0065] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this patent can make slight changes or modifications to equivalent embodiments using the above technical content without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A water inlet structure for a drum, comprising a hollow shaft forming a water inlet channel and a water inlet pipe, a water outlet adapter provided at the water outlet end of the water inlet pipe, a transfer cavity in communication with the water inlet channel provided within the water outlet adapter, characterized in that: A stirring structure for stirring the incoming water flow is provided in the transfer chamber; The stirring structure is a water wheel structure, and the rotating shaft of the water wheel structure is rotatably arranged on the inner wall of the water outlet adapter. The rotating shaft extends horizontally from one side of the inner wall of the water outlet adapter across the water outlet of the water outlet adapter to the opposite side of the inner wall of the water outlet adapter.

2. The water inlet structure of the drum according to claim 1, characterized in that: The water outlet adapter is hemispherical, and a water outlet is set at the center of the diameter end face of the water outlet adapter. The water outlet end of the water inlet pipe is embedded in the water outlet adapter in a direction perpendicular to the axis of the water outlet adapter, and the stirring structure is opposite to the water outlet of the water outlet adapter and the water outlet of the water inlet pipe.

3. The water inlet structure of the drum according to claim 2, characterized in that: The water outlet of the water outlet adapter and the water outlet of the water inlet pipe are both circular, and the center lines of the water outlet of the water outlet adapter and the water outlet of the water inlet pipe are both perpendicular to the axis of the rotating shaft.

4. The water inlet structure of the drum according to any one of claims 1 to 3, characterized in that: A plurality of stirring blades are distributed at intervals along the circumference of the rotating shaft on the outer peripheral wall of the rotating shaft.

5. The water inlet structure of the drum according to claim 4, characterized in that: The stirring blades are plate-shaped and gradually bend and extend outward from the outer peripheral wall of the rotating shaft, and all the stirring blades have the same bending direction.

6. The water inlet structure of the drum according to claim 5, characterized in that: The stirring blade is divided into a first blade section, a second blade section and a third blade section along the bending direction of the stirring blade. The sizes of the first blade section and the third blade section along the bending direction of the stirring blade remain different, and the size of the second blade section along the bending direction of the stirring blade gradually decreases.

7. The water inlet structure of the drum according to claim 5, characterized in that: A water stirring chamber is formed between two adjacent stirring blades, and the size of the water stirring chamber gradually increases along the bending direction of the stirring blades.

8. The water inlet structure of the drum according to claim 4, characterized in that: Reinforcing ribs are provided between two adjacent stirring blades.

9. The water inlet structure of the drum according to claim 8, characterized in that: The reinforcing rib is a plate-like structure, and extends in the water stirring chamber along the bending direction of the stirring blade. The reinforcing rib is respectively arranged to fit the outer peripheral wall of the rotating shaft and two adjacent stirring blades.

10. A drum washing machine comprising a drum, a drum support and a motor, wherein the drum support is provided on the outside of the drum and the motor is provided on the drum support, characterized in that: It also includes the water inlet structure of the drum as described in any one of claims 1-9, the drum shaft is installed at the bottom of the drum, the water outlet end of the drum shaft is connected to the drum, the water inlet end of the drum shaft passes through the drum support and the motor and is inserted into the transfer cavity, and the water outlet adapter is fixed on the drum support.

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