A washing machine and a drum cleaning device thereof

Abstract

The application discloses a washing machine cleaning barrel device and a washing machine. The cleaning barrel device comprises a cleaning assembly, a containing cavity, and a driving structure for pulling the cleaning assembly to retract into the containing cavity. The cleaning assembly is provided with a pull rope and a cleaning piece arranged on the pull rope. A tensioning structure is arranged for tensioning the pull rope when the cleaning assembly is between the inner barrel and the outer barrel. When cleaning is needed, the cleaning assembly is extended and the pull rope is tensioned between the inner barrel and the outer barrel of the washing machine through the tensioning structure. Then, the inner barrel is started to rotate, so that the cleaning piece can clean the dirt on the outer wall of the inner barrel. When cleaning is not needed, the cleaning assembly is stored in the containing cavity, so that the normal washing of the washing machine is not affected. The pull rope is arranged, which is beneficial to changing the direction and shape of the cleaning assembly when the cleaning assembly is retracted, beneficial to the design of the position and structure of the containing cavity, and beneficial to arranging the containing cavity without changing the structure of the outer barrel and reducing the manufacturing cost.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of washing machines, and particularly relates to a cleaning barrel device of a washing machine and a washing machine with the cleaning barrel device. BACKGROUND

[0002] The existing washing machine mainly comprises a washing part and a control part, a supporting part and a drainage part. After long-time operation, the washing part is seriously silted with dirt and bacteria breed. If the washing part is manually disassembled and washed, much time is consumed, and assembling precision is affected or other problems occur due to installation details. The production manufacturer of the washing machine has made in-depth research on the materials and the shape of the washing barrel. When the washing process runs the dehydration program, the water on the clothes is thrown to hit the inner wall of the outer barrel, and most of the adherents on the inner wall of the outer barrel can be washed away, so that the cleaning effect of the washing machine is greatly improved. However, the dirt on the outer wall of the inner barrel of the washing machine cannot be cleaned through the washing process.

[0003] In the Chinese patent 200820062676 "Washing machine self-cleaning and sterilizing device", it is disclosed that a pipe is arranged in the washing machine tank, and the pipe has dense water outlets and air outlets. After dehydration for a certain time, the water inlet electromagnetic valve is opened, and tap water is flushed out from the dense small holes of the channel pipe to wash the outer wall of the inner barrel. After the water washing, the electromagnetic valve is closed, the heater is controlled to work, high-temperature steam is sprayed to the outer wall of the inner barrel of the washing machine from the dense small holes of the channel pipe to sterilize it. This invention has a certain cleaning effect, but has the following deficiencies: 1. The dirt silted most seriously at the bottom of the water tank cannot be cleaned; 2. The water spraying pipe itself causes a cleaning dead angle; 3. When the water pressure of tap water is low, the water pressure is not enough to have no flushing effect.

[0004] There is also a movable vertical brush structure arranged between the inner barrel and the outer barrel of the washing machine, which is used to clean the outer wall of the inner barrel. However, the structure of the outer barrel needs to be changed to accommodate the brush structure, so that the outer barrel is increased, the box body also needs to be increased, the outer barrel and the box body need to be re-opened, and the manufacturing cost is increased. In addition, during the washing of the washing machine, the brush structure is soaked in water, which causes the residual water on the brush structure and causes the breeding of bacteria and other problems.

[0005] The above information disclosed in the background of the application is only used to increase the understanding of the background of the application, and therefore, it can include the prior art known by those skilled in the art. SUMMARY

[0006] The present application aims at the above-mentioned problems in the prior art, and provides a washing machine barrel cleaning device, which is provided with a cleaning assembly for cleaning the outer wall of the inner barrel of the washing machine, and the cleaning assembly is provided with a pull rope, which is beneficial to the arrangement of the accommodating cavity without changing the structure of the outer barrel.

[0007] To achieve the above-mentioned application purposes, the present application adopts the following technical solutions:

[0008] A washing machine barrel cleaning device comprises:

[0009] a cleaning assembly for cleaning the outer wall of the inner barrel of the washing machine;

[0010] an accommodating cavity for accommodating the cleaning assembly;

[0011] a driving structure for pulling back the cleaning assembly into the accommodating cavity;

[0012] the cleaning assembly is provided with a pull rope and a cleaning piece arranged on the pull rope;

[0013] a tensioning structure for tensioning the pull rope when the cleaning assembly is between the inner barrel and the outer barrel.

[0014] Further, the accommodating cavity is located above the highest liquid level of the washing machine.

[0015] Further, the driving structure is provided with a rotating wheel for winding the pull rope and a motor for driving the rotating wheel to rotate.

[0016] Further, the tensioning structure is provided with a matching piece arranged at the end of the pull rope and a magnetic piece arranged on the outer barrel and attracted to the matching piece.

[0017] Further, when the cleaning assembly is accommodated into the accommodating cavity, the matching piece is located in the accommodating cavity.

[0018] Further, the tensioning structure is provided with a counterweight arranged at the end of the pull rope for providing counterweight.

[0019] Further, the counterweight is located outside the accommodating cavity.

[0020] Further, the counterweight can be used to pull out the cleaning assembly.

[0021] Further, the driving structure is further provided with a spring for pushing out the cleaning assembly, and the cleaning assembly is further provided with a plurality of force transmission balls arranged at intervals on the pull rope.

[0022] Further, the force transmission balls are used to sequentially transmit the elastic force of the spring, so as to realize the extension of the cleaning assembly.

[0023] Further, the cleaning member is a brush fixed on the force transmission ball.

[0024] Further, the counterweight member can be received in the receiving cavity.

[0025] Further, the receiving cavity is provided with a lower opening for the cleaning assembly to extend out, the lower opening being directed to a region between the inner tub and the outer tub.

[0026] Further, the receiving cavity is a circular ring cavity fixed on the outer tub.

[0027] Further, the outer tub has an outer tub body and an outer tub cover fixed on an upper end of the outer tub body, and the receiving cavity is provided in the outer tub cover.

[0028] Further, the force transmission ball is a steel ball.

[0029] Further, the pull cable is a rope or a flexible metal wire.

[0030] Based on the above-described washing machine drum cleaning device, the present application further proposes a washing machine with the drum cleaning device, by providing a cleaning assembly for cleaning the outer wall of the inner tub of the washing machine, and by providing that the cleaning assembly has a pull cable, which is conducive to changing the direction of the cleaning assembly when it is being retracted, and which is conducive to providing a receiving cavity without changing the structure of the outer tub.

[0031] A washing machine comprising a set of an outer tub and an inner tub, and further comprising the above-described drum cleaning device.

[0032] Based on the above-described washing machine drum cleaning device, the present application further proposes a drum cleaning method for a washing machine with the drum cleaning device, by providing a cleaning assembly, and by providing that the cleaning assembly has a pull cable, which is conducive to changing the direction of the cleaning assembly when it is being retracted, and which is conducive to providing a receiving cavity without changing the structure of the outer tub.

[0033] A drum cleaning method for a washing machine with the above-described drum cleaning device, comprising the following steps:

[0034] S10. Start the motor so that the pull cable is released, the spring pushes the force transmission ball close to the rotating wheel to move away from the rotating wheel, after moving to the adjacent force transmission ball, the two force transmission balls are pushed to continue moving, until all the force transmission balls are moved;

[0035] S20. The cleaning assembly is extended, and the tensioning structure realizes the tensioning of the pull cable.

[0036] S30. Drive the inner tub to rotate so that the cleaning member cleans the outer wall of the inner tub.

[0037] Compared with the prior art, the advantages and positive effects of the present application are that the cleaning assembly can clean the outer wall of the inner drum of the washing machine; when cleaning is needed, the cleaning assembly is extended and the pull cable is pulled tight between the inner drum and the outer drum of the washing machine through the tensioning structure, and then the inner drum is started to rotate, so that the cleaning assembly can clean the dirt on the outer wall of the inner drum; when cleaning is not needed, the cleaning assembly is accommodated in the accommodating cavity, so as to avoid affecting the normal washing of the washing machine; and the pull cable is arranged, which is beneficial to changing the direction and shape of the cleaning assembly when the cleaning assembly is retracted, beneficial to the design of the position and structure of the accommodating cavity, and beneficial to reducing the manufacturing cost.

[0038] Other features and advantages of the present application will become more apparent from the following specific embodiments of the present application in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0040] Figure 1 A structure diagram of a first embodiment of a washing machine drum cleaning device according to the present application is shown in the figure.

[0041] Figure 2 A structure diagram of a second embodiment of a washing machine drum cleaning device according to the present application is shown in the figure. Figure 1 An enlarged view of area A in the figure.

[0042] Figure 3 A structure diagram of the structure in the accommodating cavity

[0043] Figure 4 A structure diagram of the cleaning structure when the cleaning structure is extended out of the accommodating cavity

[0044] Figure 5 A structure diagram of the cleaning structure when the cleaning structure is retracted into the accommodating cavity Figure 4

[0045] Figure 6 A structure diagram of the cleaning structure when the cleaning structure is retracted into the accommodating cavity

[0046] Figure 7 A structure diagram of a second embodiment of a washing machine drum cleaning device according to the present application is shown in the figure. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application.​

[0048] In the description of the present application, it should be noted that the terms "upper", "lower", "left", "right", and the like indicate the positional or locational relationship based on the positional relationship shown in the drawings, with the direction close to the inner tub being "inner" and the opposite direction being "outer". The terms are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance; features limited by "first", "second" can explicitly or implicitly include one or more of the features.

[0049] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing", and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be direct connection, can also be indirect connection through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0050] Referring to Figures 1-6 It is the first embodiment of the laundry washing machine barrel cleaning device proposed in the present application, and the laundry washing machine has a set inner barrel 100 and outer barrel 200, and the laundry washing machine barrel cleaning device is used for cleaning the outer wall of the inner barrel 100 of the laundry washing machine. The barrel cleaning device comprises a cleaning assembly 10, a containing cavity 20, a driving structure 30 and a tensioning structure 40, the cleaning assembly 10 is used for cleaning the outer wall of the inner barrel 100 of the laundry washing machine, the containing cavity 20 is used for accommodating the cleaning assembly 10, and the driving structure 30 is used for driving the cleaning assembly 10 to extend out or retract into the containing cavity 20; the cleaning assembly 10 has a pull cable 11 and a cleaning piece 12 arranged on the pull cable 11. The pull cable 11 is arranged, which is beneficial to changing the direction and shape of the cleaning assembly 10 when the cleaning assembly 10 is retracted, but the pull cable 11 needs to be in a straightened state when cleaning, which is more beneficial to cleaning. Therefore, the tensioning structure 40 is arranged, which is used for tensioning the pull cable between the inner barrel 100 and the outer barrel 200.

[0051] By setting the cleaning assembly 10, the outer wall of the inner drum 100 of the washing machine can be cleaned; when cleaning is needed, the cleaning assembly 10 is stretched out and the tensioning structure 40 is used to tighten the pull cable 11 between the inner drum 100 and the outer drum 200 of the washing machine, and then the inner drum 100 is started to rotate, so that the cleaning element 12 can clean the dirt on the outer wall of the inner drum 100; when cleaning is not needed, the cleaning assembly 10 is stored in the containing cavity 20, avoiding affecting the normal washing of the washing machine; and the pull cable 11 is provided, which is beneficial to change the direction and shape of the cleaning assembly 10 when it is retracted, and is beneficial to the design of the position and structure of the containing cavity 20, so that the containing cavity 20 can be provided without changing the structure of the outer drum 200, and the manufacturing cost is reduced.

[0052] Preferably, the containing cavity 20 is located above the highest liquid level of the washing machine, and the washing machine has multiple water levels, and the amount of water inflow is selected according to the washing condition of the clothes. After the washing machine inflows water at the highest level, the liquid level in the outer drum 200 may reach the highest liquid level, that is, the highest liquid level is the highest value of the liquid level in the outer drum 200 of the washing machine. By setting the containing cavity 20 above the highest liquid level of the washing machine, it is ensured that the cleaning assembly 10 will not be soaked or wetted by the washing water when the cleaning assembly 10 is located in the containing cavity 20, which is beneficial to increase the service life of the cleaning assembly 10 and reduce the breeding of bacteria.

[0053] Referring to Figure 4 As shown, the driving structure 30 has a rotating wheel 31 for winding the pull cable 11, and a motor 32 for driving the rotating wheel 31 to rotate. By starting the motor 30, the rotating wheel 31 can rotate forward or reverse. The forward rotation of the rotating wheel 31 makes the pull cable 11 wind on the rotating wheel 31, and the winding of the pull cable 11 by tensioning can retract the cleaning assembly 10; when the rotating wheel 31 rotates reversely, the pull cable 11 wound on the rotating wheel 31 is gradually unwound, which can make the cleaning assembly 10 stretch out.

[0054] The driving structure 30 also has a spring 33 for pushing the cleaning assembly 10 to stretch out. The rotating wheel 31 can give the pull cable 11 a pulling force to make the cleaning assembly 10 be pulled into the containing cavity 20; but the rotating wheel 31 reverses, only making the pull cable 11 circle by circle away from the rotating wheel 31, and the rotating wheel 31 can only give the pull cable 11 a pulling force, but cannot give the pull cable 11 a pushing force; therefore, the spring 33 is provided to push the cleaning assembly 10 out and provide the cleaning assembly 10 with a pushing force. The cleaning assembly 10 also has a plurality of force transmission balls 13 arranged on the pull cable 11, which are used to sequentially transmit the elastic force of the spring 33 to realize the stretching out of the cleaning assembly 10. By setting the force transmission balls 13, the elastic force of the spring 33 can be applied to the force transmission balls 13; and by setting a plurality of force transmission balls 13, the force can be sequentially transmitted, avoiding the need to set a spring 33 with a long size.

[0055] For the convenience of description, as shown in Figure 4 and Figure 5 N force transmission balls 13 are arranged on the pull cable 11 at intervals, with one of the force transmission balls 13 close to the rotating wheel 13 being the first force transmission ball 13, the force transmission ball 13 adjacent to the first force transmission ball 13 being the second force transmission ball 13, and the force transmission ball 13 adjacent to the second force transmission ball 13 being the third force transmission ball 13, and so on. The spring 33 is arranged on the side of the first force transmission ball 13 close to the rotating wheel 13. When the cleaning assembly 10 is pulled into the accommodating cavity 20 by the rotating wheel 31 rotating in the forward direction, the pull cable 11 is gradually wound on the rotating wheel 13, so that the force transmission balls 13 compress the spring 33. The N force transmission balls 13 are arranged at intervals, and a section of the pull cable between two adjacent force transmission balls 13 is in a straightened state. A section of the pull cable between the first force transmission ball 13 and the rotating wheel 33 is in a tensioned state under the elastic force of the spring 33. When the cleaning assembly 10 is pulled out of the accommodating cavity 20, the rotating wheel 31 rotates in the reverse direction, and the pull cable 11 wound on the rotating wheel 13 is gradually unwound. The spring 33 pushes the first force transmission ball 13 to move away from the rotating wheel 31. At this time, a section of the pull cable between the first force transmission ball 13 and the rotating wheel 33 is in a tensioned state, and a section of the pull cable between the first force transmission ball 13 and the second force transmission ball 13 is in a curved state. Then, as the rotating wheel 31 unwinds the pull cable 11, the spring 33 pushes the first force transmission ball 13 to contact and push the second force transmission ball to move. The third force transmission ball, the fourth force transmission ball, and the Nth force transmission ball are sequentially pushed. Finally, the cleaning assembly 10 is pushed out.

[0056] As shown in Figure 1 , the tensioning structure 40 has a matching part 41 arranged at the end of the pull cable 11 and a magnetic part 42 fixed on the bottom of the outer barrel 200. The magnetic part 42 is attracted to the matching part 41, and the tension is transmitted to the pull cable 11 through the magnetic part 42. The upper end of the pull cable 11 is wound on the rotating wheel 31, so that the pull cable 11 can be tensioned, and the inner wall of the inner barrel 100 can be cleaned. When the cleaning assembly 10 is accommodated in the accommodating cavity 20, the matching part 41 is located in the accommodating cavity 20. Thus, when the cleaning assembly 10 is pushed out by the spring 33, the spring 33 pushes the N force transmission balls arranged in sequence to move and reach the matching part 41, so that the matching part 41 is first pushed out of the accommodating cavity 20. The matching part 41 is made of a metal material that can be attracted to the magnetic part 42, and is preferably in the shape of a ball.

[0057] The cleaning part 12 is a brush fixed on the force transmission ball 13, and is preferably a steel ball. The steel ball is beneficial to increase the stability of the cleaning part 12 when brushing the inner barrel 100, and is beneficial to pull out the remaining force transmission balls 13 under the action of gravity after the matching part 41 is pushed out or after the matching part 41 and one force transmission ball 13 are pushed out.

[0058] As shown in Figure 2As shown, the accommodating cavity 20 is provided with a lower opening 21 for the cleaning assembly 10 to extend out, the lower opening 21 is towards the area between the inner drum 100 and the outer drum 200, which is beneficial for the extension or retraction of the cleaning assembly 10, the transmission ball 13 is spherical, the matching part 41 is also spherical, which is beneficial for being pulled into the accommodating cavity 20 through the lower opening 21. The accommodating cavity 20 is a circular ring cavity fixed on the outer drum 200, which is beneficial for effectively utilizing the space and accommodating the cleaning assembly 10; the cleaning assembly 10 can be arc-shaped in the accommodating cavity 20. The outer drum 200 has an outer drum body 201 and an outer drum cover 202 fixed on the upper end of the outer drum body 201, and the accommodating cavity 20 is arranged on the outer drum cover 202. The pull rope 11 can be a rope or a flexible metal wire.

[0059] The following describes the method for cleaning the outer drum of the washing machine, which comprises the following steps:

[0060] S10. Start the motor 32, so that the pull rope 11 is unwound, the spring 33 pushes the transmission ball 13 close to the rotating wheel 31 to move away from the rotating wheel 31, and after moving to the adjacent transmission ball, the two transmission balls are pushed to continue to move, until all the transmission balls 13 are moved;

[0061] S20. After the cleaning assembly 10 is extended to the position, the tensioning structure 40 realizes the tensioning of the pull rope 11;

[0062] S30. Drive the inner drum 100 to rotate, so that the cleaning part 12 cleans the outer wall of the inner drum 100;

[0063] S40. After cleaning, stop driving the inner drum 100, and start the motor 32 to wind the pull rope 11 on the rotating wheel 31.

[0064] Referring to Figure 7 , it is a second embodiment of the cleaning device for the outer drum of the washing machine, and the main difference between the embodiment and the first embodiment is that the tensioning structure 40 is different, and other structures can be the same as those of the first embodiment.

[0065] The washing machine has a set of inner drum 100 and outer drum 200, and the washing machine cleaning drum device is used to clean the outer wall of the inner drum 100 of the washing machine. The cleaning drum device comprises a cleaning assembly 10, a containing cavity 20, a driving structure 30 and a tensioning structure 40, the cleaning assembly 10 is used to clean the outer wall of the inner drum 100 of the washing machine, the containing cavity 20 is used to accommodate the cleaning assembly 10, and the driving structure 30 is used to drive the cleaning assembly 10 to extend out or retract into the containing cavity 20; the cleaning assembly 10 has a pull rope 11 and a cleaning piece 12 arranged on the pull rope, the pull rope 11 is arranged to facilitate the change of direction and shape of the cleaning assembly 10 when the cleaning assembly 10 is retracted, but the pull rope 11 needs to be in a straightened state during cleaning, which is more conducive to cleaning; therefore, the tensioning structure 40 is arranged to tension the pull rope between the inner drum 100 and the outer drum 200.

[0066] The driving structure 30 has a rotating wheel 31 for winding the pull rope 11 and a motor 32 for driving the rotating wheel 31 to rotate, and the rotating wheel 31 can be driven to rotate forward or reversely by starting the motor 30. The forward rotation of the rotating wheel 31 is defined to wind the pull rope 11 on the rotating wheel 31, and the cleaning assembly 10 can be retracted by the tensioning winding of the pull rope 11; when the rotating wheel 31 reversely rotates, the pull rope 11 wound on the rotating wheel 31 is gradually unwound, so that the cleaning assembly 10 can be extended.

[0067] The driving structure 30 further has a spring 33 for pushing the cleaning assembly 10 to extend out, the pull rope 11 can be given a pulling force by the forward rotation of the rotating wheel 31, so that the cleaning assembly 10 is pulled into the containing cavity 20; but the rotating wheel 31 reversely rotates, only the pull rope 11 can be gradually separated from the rotating wheel 31, and the rotating wheel 31 can only give the pull rope 11 a pulling force but cannot give the pull rope 11 a pushing force; therefore, the spring 33 is arranged to push the cleaning assembly 10 out and provide a pushing force for the cleaning assembly 10. The cleaning assembly 10 further has a plurality of force transmission balls 13 arranged on the pull rope 11 in intervals, which are used to sequentially transmit the elastic force of the spring 33 to realize the extension of the cleaning assembly 10. By arranging the force transmission balls 13, the elastic force of the spring 33 can be applied to the force transmission balls 13; and by arranging a plurality of force transmission balls 13, the force can be sequentially transmitted, so that a spring 33 with a relatively long size does not need to be arranged.

[0068] The tensioning structure 40 has a counterweight arranged at the end of the pull rope 11, and the counterweight is used to tension the lower end of the pull rope 11 by relying on the self-gravity of the counterweight to ensure the effect of cleaning the inner wall of the inner drum 100 by the cleaning assembly 10. When the cleaning assembly 10 is pushed out, the counterweight is pushed out, and the cleaning assembly 10 can be pulled out under the gravity of the counterweight.

[0069] The above examples are only used to illustrate the technical solutions of the present application, but not to limit the present application; although the present application has been described in detail with reference to the foregoing examples, the technical solutions recorded in the foregoing examples can still be modified by those skilled in the art, or some technical features thereof can be replaced by equivalent ones; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions claimed by the present application.

Claims

1. A washing machine tub cleaning device, characterized in that, include: Cleaning components, used to clean the outer wall of the inner drum of a washing machine; A receiving cavity for accommodating the cleaning components; A drive structure for pulling the cleaning component back into the receiving cavity; The cleaning assembly has a cable and a cleaning component disposed on the cable; A tensioning structure for tensioning the cable when the cleaning assembly is between the inner and outer tubs.

2. The bucket cleaning device according to claim 1, characterized in that, The drive structure has a wheel for winding the cable and a motor for driving the wheel to rotate.

3. The bucket cleaning device according to claim 1, characterized in that, The drive structure has a spring for pushing the cleaning component to extend, and the cleaning component also has a plurality of force-transmitting balls spaced apart on the cable.

4. The bucket cleaning device according to claim 3, characterized in that, The force-transmitting ball is used to sequentially transmit the elastic force of the spring, thereby enabling the cleaning component to extend.

5. The bucket cleaning device according to any one of claims 1 to 4, characterized in that, The receiving cavity has a lower opening for the cleaning component to extend out, the lower opening facing the area between the inner tub and the outer tub.

6. The bucket cleaning device according to claim 5, characterized in that, The receiving cavity is an annular cavity fixed on the outer barrel. The outer barrel has an outer barrel body and an outer barrel cover fixed at the upper end of the outer barrel body. The receiving cavity is located on the outer barrel cover.

7. The bucket cleaning device according to claim 3 or 4, characterized in that, The cleaning component is a brush fixed to the force transmission ball.

8. The bucket cleaning device according to any one of claims 1 to 4, characterized in that, The tensioning structure has a fitting at the end of the cable and a magnetic component fixed to the outer barrel and attracted to the fitting.

9. The bucket cleaning device according to any one of claims 1 to 4, characterized in that, The tensioning structure has a counterweight located at the end of the cable for providing counterweight.

10. A washing machine, comprising an outer tub and an inner tub set together, characterized in that, It also includes the bucket cleaning device as described in any one of claims 1 to 9.

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