Washing machine with automatic cleaning function

Abstract

The washing machine comprises a washing drum, a motor, a clutch device and a cleaning device, the cleaning device is installed on a chuck and comprises a supporting rod, a water supply pipeline, a spray pipe and a steering driving component, one end of the supporting rod is fixed to the chuck, and the other end of the supporting rod extends to a second installation space; the water supply pipeline comprises a water inlet pipe and an adapter which are connected. The adapter is fixed to the end, away from the chuck, of the supporting rod. The spray pipe is arranged in the second mounting space, the end of the spray pipe is rotationally connected with the adapter, the water supply pipeline can supply water to the spray pipe through the adapter, the spray pipe can rotate relative to the adapter, and a spray hole is formed in one side of the spray pipe; the steering driving component is connected with the spraying pipe. When the chuck is jointed with the main shaft, the main shaft can drive the chuck and the cleaner to rotate relative to the outer cylinder, so that the inner wall of the outer cylinder is cleaned; when the chuck is separated from the main shaft, the chuck loses driving force, the main shaft can only independently drive the inner cylinder to rotate, at the moment, the cleaning device and the inner cylinder rotate relatively, and therefore cleaning of the outer wall of the inner cylinder can be achieved.

Description

Technical Field

[0001] This application relates to the technical field of washing machines, and particularly to a washing machine capable of automatic cleaning. Background Art

[0002] The drum structure of a washing machine includes an outer drum and an inner drum structure. The outer drum is a fixed drum, and the inner drum is installed inside the outer drum. The rotating shaft of the motor penetrates through the bottom of the outer drum and is connected to the inner drum. The motor is used to drive the inner drum to rotate, so that the inner drum pushes the clothes to operate to achieve the laundry function. There is a certain gap between the inner drum and the outer drum. The inner wall of the outer drum and the outer wall of the inner drum are wall surfaces that the clothes cannot touch. After long-term use, dirt is likely to accumulate and bacteria will breed on the inner wall of the outer drum and the outer wall of the inner drum. To address this problem, a self-cleaning system has been incorporated into modern washing machine technology, aiming to automatically solve the internal cleaning problem. However, many of the current self-cleaning functions on the market mainly focus on cleaning the inner wall of the outer drum, and are unable to effectively clean the outer wall of the inner drum. For example, the Chinese authorized patent CN219808127U discloses an outer drum cleaning system and a washing machine. This solution designs a rib structure with water spray holes and a water storage cavity on the side wall of the inner drum, and supplies water to the water storage cavity through a water diversion pipe. When the washing machine is running, these rib structures rotate with the inner drum, and the water spray holes on them accurately spray water onto the inner wall of the outer drum, thereby effectively cleaning the inner wall of the outer drum. However, this design still cannot clean the outer wall of the inner drum. Summary of the Utility Model

[0003] The purpose of the embodiments of the present utility model is to provide a self-cleaning washing machine, which can solve the problem that the existing washing machines can only clean the inner wall of the outer drum alone and cannot clean the outer wall of the inner drum.

[0004] To achieve the above object, this application adopts the following technical solutions:

[0005] A washing machine capable of automatic cleaning, comprising:

[0006] A laundry drum, including an inner drum and an outer drum. The inner drum is arranged inside the outer drum. A first installation space is formed between the bottom wall of the outer drum and the bottom wall of the inner drum, and a second installation space is formed between the side wall of the outer drum and the side wall of the inner drum;

[0007] A motor, connected with a main shaft. The main shaft extends from the bottom of the outer drum into the outer drum and is connected to the inner drum to drive the inner drum to rotate;

[0008] A clutch device, including a chuck. The chuck has an engaged state and a disengaged state. In the engaged state, the main shaft drives the chuck to rotate together; in the disengaged state, the main shaft can rotate relative to the chuck;

[0009] The washer is installed on the chuck and includes a support rod, a water supply pipeline, a spray pipe, and a steering drive member. One end of the support rod is fixed to the chuck, and the other end extends to the second installation space. The water supply pipeline includes a water inlet pipe and a swivel joint connected to each other. The swivel joint is fixed to the end of the support rod away from the chuck. The spray pipe is arranged in the second installation space, and its end is rotatably connected to the swivel joint. The water supply pipeline can supply water to the spray pipe through the swivel joint, and the spray pipe can rotate relative to the swivel joint. One side of the spray pipe is provided with spray holes. The steering drive member is connected to the spray pipe and is used to drive the spray pipe to rotate. When the clutch device is in the engaged state, the spray holes face the outer cylinder. When the clutch device is in the disengaged state, the spray holes face the inner cylinder.

[0010] Optionally, the steering drive member includes a control member and a linkage assembly. The control member is arranged on the main shaft, the linkage assembly is arranged on the support rod, the linkage assembly is connected to the spray pipe. When the clutch device is in the disengaged state, the linkage assembly resets, and the spray holes face the inner cylinder. When the clutch device is in the engaged state, the control member pushes the linkage assembly to change positions, and the spray holes face the outer cylinder.

[0011] Optionally, the linkage assembly includes a torsion spring, a pull rope, and a slider. The torsion spring is sleeved outside the spray pipe, one end of which is fixedly connected to the spray pipe, and the other end is fixed to the support rod. The slider is slidably installed on the support rod. One end of the pull rope is fixedly connected to the spray pipe, and the other end is fixedly connected to the slider. When the clutch device is in the disengaged state, the torsion spring drives the spray pipe to rotate to the position where the spray holes face the inner cylinder, and the linkage assembly resets. When the clutch device is in the engaged state, the control member pushes the slider, and the slider pulls the spray pipe to rotate to the position where the spray holes face the outer cylinder through the pull rope, and the torsion spring is tightened.

[0012] Optionally, the control member is disk-shaped, and a circular sunk groove is provided on the side facing the chuck. The side wall of the sunk groove is set as a guiding inclined surface. During the process of the chuck tending to engage with the main shaft, the slider slides into the sunk groove along the guiding inclined surface, so as to realize the control member pushing the slider to slide radially.

[0013] Optionally, the support rod is a hollow rod, and the linkage assembly and the swivel joint are both installed inside the support rod.

[0014] Optionally, the water supply pipeline includes a hard water supply pipe and a flexible water supply hose. A pipe passing hole is provided on the bottom wall of the outer cylinder. The hard water supply pipe extends from outside the outer cylinder to inside the outer cylinder through the pipe passing hole. One end of the flexible water supply hose is connected to the hard water supply pipe, and the other end is connected to the swivel joint.

[0015] Optionally, the washer includes a plurality of the support rods circumferentially and uniformly arranged around the axis of the chuck, and each of the support rods is respectively provided with a swivel joint, and each of the swivel joints is respectively connected to a nozzle.

[0016] Optionally, a water storage ring groove and a plurality of water passing channels respectively corresponding to the swivel joints one by one are arranged on the chuck, and the water passing channels are connected to the swivel joints through flow pipes; the washer further includes an annular cover, a connecting pipe head is arranged on the annular cover, and the annular cover is covered on the chuck to seal the water storage ring groove, one end of the water supply hose is connected to the water supply rigid pipe, and the other end is connected to the connecting pipe head.

[0017] Optionally, the clutch device further includes a snap ring and a clutch driving member, the snap ring is fixed on the main shaft, and a snap hole matched with the snap ring is arranged at the center of the chuck; the clutch driving member is connected to the chuck and is used for pushing the chuck to axially move relative to the snap ring so that the chuck is engaged or separated from the snap ring.

[0018] Optionally, the clutch driving member is an elastic telescopic electromagnet, the elastic telescopic electromagnet includes a fixed part and a telescopic rod that can telescopically move relative to the fixed part, the fixed part is fixedly arranged relative to the outer cylinder, an annular sliding groove coaxial with the main shaft is arranged on the chuck, the telescopic rod is slidably connected to the annular sliding groove, and the chuck is axially moved by the telescopic movement of the telescopic rod to be engaged or separated from the snap ring.

[0019] The beneficial effects of the present application are as follows: The present utility model provides a washing machine capable of automatic cleaning. In addition to being able to clean the inner wall of the outer cylinder, it can also clean the outer wall of the inner cylinder. This solution includes a clutch device and a washer. The clutch device includes a chuck, and the washer is installed on the chuck. When the chuck is engaged with the main shaft, the main shaft can drive the chuck and the washer to rotate relative to the outer cylinder, thereby realizing the cleaning of the inner wall of the outer cylinder; when the chuck is separated from the main shaft, the chuck loses the driving force, and the main shaft can only drive the inner cylinder to rotate alone. At this time, the washer rotates relative to the inner cylinder, so the cleaning of the outer wall of the inner cylinder can be realized. In addition, this solution can also control the flushing direction of the washer according to the cleaning requirements. The washer is provided with support rods for supporting the nozzles. The nozzles are rotatably installed on the swivel joints of the water supply pipeline, and a steering driving member is also provided to control the direction of the nozzles. When cleaning the outer cylinder, the steering driving member controls the spray holes on the nozzles to face the outer cylinder, and when cleaning the inner cylinder, the steering driving member controls the spray holes on the nozzles to face the inner cylinder. Description of the Drawings

[0020] The following further describes the present application in detail according to the drawings and embodiments.

[0021] Figure 1Schematic structural diagram of the automatic cleaning washing machine according to the embodiment of the present application;

[0022] Figure 2 Cross-sectional view of the automatic cleaning washing machine according to the embodiment of the present application;

[0023] Figure 3 Schematic structural diagram of the automatic cleaning washing machine with the outer cylinder hidden according to the embodiment of the present application;

[0024] Figure 4 Schematic structural diagram of the connection of the motor, the clutch device and the cleaner according to the embodiment of the present application;

[0025] Figure 5 is Figure 4 Schematic structural diagram of the structure hiding the nozzle;

[0026] Figure 6 is Figure 5 Schematic structural diagram of another perspective of the structure shown;

[0027] Figure 7 is Figure 5 Explosion diagram of the structure shown;

[0028] Figure 8 Schematic structural diagram of the cooperation between the control member and the linkage assembly according to the embodiment of the present application;

[0029] Figure 9 is Figure 8 Cross-sectional view of the structure shown.

[0030] In the figure:

[0031] 1. Laundry tub; 11. Outer cylinder; 12. Inner cylinder; 2. Motor; 21. Main shaft; 22. Mounting plate; 3. Clutch device; 31. Chuck; 311. Card hole; 312. Second card block; 313. Annular chute; 314. Second retaining piece; 32. Snap ring; 321. First card block; 33. Clutch drive member; 331. Sealing ring; 4. Cleaner; 41. Nozzle; 42. Support rod; 43. Adapter; 44. Annular cover; 441. Connecting pipe head; 45. Steering drive member; 451. Control member; 4511. Sunk groove; 4512. Guide inclined plane; 452. Linkage assembly; 4521. Slide block; 4522. Pull rope; 4523. Torsion spring. Detailed implementation manners

[0032] To make the technical problems solved by this application, the technical solutions adopted, and the achieved technical effects clearer, the technical solutions of the embodiments of this application will be further described in detail below. Obviously, the described embodiments are only part of the embodiments of this application, rather than all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of this application.

[0033] In the description of this application, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0034] In this application, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through other features therebetween. Moreover, the first feature being "above", "above", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher horizontal height than the second feature. The first feature being "below", "below", and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature is at a lower horizontal height than the second feature.

[0035] The drum structure of a washing machine includes an outer drum and an inner drum structure. The outer drum is a fixed drum, and the inner drum is installed inside the outer drum. The rotating shaft of the motor passes through the bottom of the outer drum and is connected to the inner drum. The motor is used to drive the inner drum to rotate, so that the inner drum pushes the clothes to operate to achieve the laundry function. There will be a certain gap between the inner drum and the outer drum. The inner wall of the outer drum and the outer wall of the inner drum are wall surfaces that the clothes cannot touch. After long-term use, dirt is likely to accumulate and bacteria will breed on the inner wall of the outer drum and the outer wall of the inner drum. To address this problem, a self-cleaning system has been incorporated into modern washing machine technology, aiming to automatically solve the internal cleaning problem. However, many current self-cleaning functions on the market mainly focus on cleaning the inner wall of the outer drum, and are unable to effectively clean the outer wall of the inner drum. For example, the Chinese authorized patent CN219808127U discloses an outer drum cleaning system and a washing machine. This solution designs a rib structure with water spray holes and a water storage cavity on the side wall of the inner drum, and supplies water to the water storage cavity through a water pipe. When the washing machine is running, these rib structures rotate with the inner drum, and the water spray holes on them accurately spray water onto the inner wall of the outer drum, thereby effectively cleaning the inner wall of the outer drum. However, this design still cannot clean the outer wall of the inner drum.

[0036] To overcome the above technical problems, this embodiment provides a washing machine capable of automatic cleaning, which includes a washing tub 1, a motor 2, a clutch device 3, and a cleaner 4. The washing tub 1 includes an inner tub 12 and an outer tub 11. The inner tub 12 is disposed inside the outer tub 11. A first installation space is formed between the bottom wall of the outer tub 11 and the bottom wall of the inner tub 12, and a second installation space is formed between the side wall of the outer tub 11 and the side wall of the inner tub 12. The motor 2 is connected to a main shaft 21. The main shaft 21 extends from the bottom of the outer tub 11 into the outer tub 11 and is connected to the inner tub 12 to drive the inner tub 12 to rotate. The clutch device 3 includes a chuck 31. The chuck 31 has an engaged state and a disengaged state. In the engaged state, the main shaft 21 drives the chuck 31 to rotate together. In the disengaged state, the main shaft 21 can rotate relative to the chuck 31. The cleaner 4 is installed on the chuck 31 and includes a support rod 42, a water supply pipeline, a spray pipe 41, and a steering drive member 45. One end of the support rod 42 is fixed to the chuck 31, and the other end extends into the second installation space. The water supply pipeline includes a water inlet pipe and a swivel joint 43 connected to each other. The swivel joint 43 is fixed to the end of the support rod 42 away from the chuck 31. The spray pipe 41 is disposed in the second installation space, and its end is rotatably connected to the swivel joint 43. The water supply pipeline can supply water to the spray pipe 41 through the swivel joint 43, and the spray pipe 41 can rotate relative to the swivel joint 43. A spray hole is provided on one side of the spray pipe 41. The steering drive member 45 is connected to the spray pipe 41 and is used to drive the spray pipe 41 to rotate. When the clutch device 3 is in the engaged state, the spray hole faces the outer tub 11. When the clutch device 3 is in the disengaged state, the spray hole faces the inner tub 12.

[0037] Among them, the water supply pipeline is introduced from outside the washing tub 1. To increase the cleaning pressure, a booster pump can be provided for it so that it can supply high-pressure water to the spray pipe 41.

[0038] The washing machine capable of automatic cleaning according to this embodiment can not only clean the inner wall of the outer tub 11, but also clean the outer wall of the inner tub 12. This solution includes a clutch device 3 and a washer 4. The clutch device 3 includes a chuck 31, and the washer 4 is installed on the chuck 31. When the chuck 31 engages with the main shaft 21, the main shaft 21 can drive the chuck 31 and the washer 4 to rotate relative to the outer tub 11, thereby realizing the cleaning of the inner wall of the outer tub 11; when the chuck 31 is separated from the main shaft 21, the chuck 31 loses the driving force, and the main shaft 21 can only drive the inner tub 12 to rotate alone. At this time, the washer 4 rotates relative to the inner tub 12, so the cleaning of the outer wall of the inner tub 12 can be realized. In addition, this solution can also control the flushing direction of the washer 4 according to the cleaning requirements. The washer 4 is provided with a support rod 42 for supporting the spray pipe 41. The spray pipe 41 is rotatably installed on the adapter 43 of the water supply pipeline, and a steering drive member 45 is provided to control the direction of the spray pipe 41. When cleaning the outer tub 11, the steering drive member 45 controls the spray holes on the spray pipe 41 to face the outer tub 11. When cleaning the inner tub 12, the steering drive member 45 controls the spray holes on the spray pipe 41 to face the inner tub 12.

[0039] In one embodiment, the steering drive member 45 includes a control member 451 and a linkage assembly 452. The control member 451 is arranged on the main shaft 21, the linkage assembly 452 is arranged on the support rod 42, the linkage assembly 452 is connected to the spray pipe 41. When the clutch device 3 is in a separated state, the linkage assembly 452 is reset, and the spray holes face the inner tub 12; when the clutch device is in an engaged state, the control member 451 pushes the linkage assembly 452 to change positions, and the spray holes face the outer tub 11.

[0040] When the clutch device 3 is in a separated state, the main shaft 21 and the chuck 31 (and the washer 4) no longer rotate synchronously. At this time, the linkage assembly 452 is reset to ensure that the spray holes face the inner tub 12 for cleaning the outer wall of the inner tub 12. When the clutch device 3 is in an engaged state, the main shaft 21 drives the chuck 31 and the washer 4 to rotate together. At the same time, the control member 451 pushes the linkage assembly 452 to change positions, so that the spray holes face the outer tub 11 for cleaning the inner wall of the outer tub 11. Through the automatic cooperation of the control member 451 and the linkage assembly 452, the precise adjustment of the direction of the spray pipe 41 can be realized without manual intervention, improving the cleaning efficiency and convenience. The control member 451 and the linkage assembly 452 are respectively installed on the main shaft 21 and the support rod 42, making full use of the space inside the washing machine and making the overall structure more compact and reasonable.

[0041] In one embodiment, the linkage assembly 452 includes a torsion spring 4523, a pull rope 4522, and a slider 4521. The torsion spring 4523 is sleeved outside the nozzle 41, one end of which is fixedly connected to the nozzle 41 and the other end is fixed to the support rod 42. The slider 4521 is slidably mounted on the support rod 42. One end of the pull rope 4522 is fixedly connected to the nozzle 41 and the other end is fixedly connected to the slider 4521. When the clutch device 3 is in the disengaged state, the torsion spring 4523 drives the nozzle 41 to rotate to a position where the spray hole faces the inner cylinder 12, and the linkage assembly 452 is reset. When the clutch device 3 is in the engaged state, the control member 451 pushes the slider 4521, and the slider 4521 pulls the nozzle 41 to rotate to a position where the spray hole faces the outer cylinder 11 through the pull rope 4522, and the torsion spring 4523 is tightened.

[0042] The automatic reset of the nozzle 41 is achieved through the elastic force of the torsion spring 4523, without the need for an additional power source or complex control logic. The combined design of the pull rope 4522 and the slider 4521 allows for precise control of the rotation of the nozzle 41, ensuring that the spray hole can accurately face the outer cylinder 11 or the inner cylinder 12. The entire linkage assembly 452 has a compact and simple structure, is easy to manufacture and maintain. At the same time, components such as the torsion spring 4523, the pull rope 4522, and the slider 4521 are common mechanical components, with high reliability and durability.

[0043] In one embodiment, referring to Figure 8-9 , the control member 451 is disc-shaped, and a circular sunk groove 4511 is provided on the side facing the chuck 31. The side wall of the sunk groove 4511 is provided with a guiding inclined surface 4512. During the process of the chuck 31 tending to engage the main shaft 21, the slider 4521 slides into the sunk groove 4511 along the guiding inclined surface 4512, thereby realizing the control member 451 to push the slider 4521 to slide radially.

[0044] When the clutch device 3 changes from the disengaged state to the engaged state, the chuck 31 will move in the direction of tending to engage the main shaft 21. During this process, as the chuck 31 moves, the slider 4521 is subjected to pressure or thrust from the chuck 31 and begins to slide along the guiding inclined surface 4512. The design of the guiding inclined surface 4512 enables the slider 4521 to gradually penetrate into the sunk groove 4511, realizing the radial sliding of the slider 4521. Since the slider 4521 is connected to the nozzle 41 through the pull rope 4522, the sliding of the slider 4521 will pull the nozzle 41 to rotate through stretching, that is, the purpose of adjusting the orientation of the spray hole on the nozzle 41 is achieved. During the rotation of the nozzle 41, the torsion spring 4523 will be stretched or compressed accordingly to store energy. When the clutch device 3 is disengaged again, the torsion spring 4523 will release energy and push the nozzle 41 back to the initial position.

[0045] Through the design of the sinking groove 4511 and the guiding inclined surface 4512, the mechanical interlock between the control member 451 and the slider 4521 is realized. This interlock method is simple and reliable, without the need for complex electronic control or hydraulic transmission systems.

[0046] In one embodiment, the support rod 42 is a hollow rod, and the linkage assembly 452 and the adapter 43 are both installed inside the support rod 42.

[0047] The design of the hollow rod makes full use of the internal space of the support rod 42, which not only saves valuable space but also makes the overall structure more compact. Installing the linkage assembly 452 and the adapter 43 inside the support rod 42 can also effectively protect them from the external environment.

[0048] In one embodiment, the water supply pipeline includes a water supply hard pipe and a water supply flexible pipe. A pipe passing hole is provided in the bottom wall of the outer cylinder 11, and the water supply hard pipe extends from outside the outer cylinder 11 to inside the outer cylinder 11 through the pipe passing hole; one end of the water supply flexible pipe is connected to the water supply hard pipe, and the other end is connected to the adapter 43.

[0049] Specifically, the water supply hard pipe of the water supply pipeline passes through the pipe passing hole on the outer cylinder 11, and can be reliably connected to the outer cylinder 11 to ensure the sealing performance of the connection. Preferably, in order to improve the anti-leakage ability, a waterproof ring can be provided in the pipe passing hole. The water supply flexible pipe is connected to the inner end of the water supply hard pipe, and when setting, there is a certain surplus amount of the water supply flexible pipe between the water supply hard pipe and the control valve. The advantage is that when the chuck 31 is engaged with the main shaft 21, the chuck 31, the support rod 42, the control valve and other structures need to rotate with the main shaft 21. The deformable characteristic of the water supply flexible pipe can just meet the relative movement requirements of the two while always maintaining the connection between the control valve and the water supply hard pipe. It should be noted that in order to avoid excessive winding of the water supply flexible pipe around the main shaft 21 during work, when cleaning the outer cylinder 11, the motor 2 can be set to rotate forward and backward intermittently, and the rotation angle each time does not exceed 360° (when setting a group of spray pipes 41, it rotates 360° each time, and when setting multiple groups of spray pipes 41, the rotation angle each time can be less than 360°). In this way, the requirement of 360° cleaning of the inner wall of the outer cylinder 11 can be met. When using the normal laundry function, it is only necessary to keep the chuck 31 separated from the main shaft 21 at all times.

[0050] In one embodiment, the cleaner 4 includes a plurality of support rods 42 circumferentially and uniformly arranged around the axis of the chuck 31. Each support rod 42 is respectively provided with an adapter 43, and each adapter 43 is respectively connected to a spray pipe 41.

[0051] When multiple nozzles 41 work simultaneously, the cleaning efficiency can be significantly improved. At the same time, when cleaning the outer cylinder 11, the angle of forward and reverse rotation required for the chuck 31 each time can also be controlled within a relatively small range.

[0052] In one embodiment, a water storage ring groove and a plurality of water passing channels respectively corresponding to the adapter 43 are provided on the chuck 31, and the water passing channels are connected to the adapter 43 through flow pipes; the cleaner 4 further includes an annular cover 44, a connecting pipe head 441 is provided on the annular cover 44, and the annular cover 44 is covered on the chuck 31 to seal the water storage ring groove. One end of the water supply hose is connected to the water supply rigid pipe, and the other end is connected to the connecting pipe head 441.

[0053] The setting of the water storage ring groove enables the water flow from the water supply hose to be concentrated and stored first, and then dispersed and supplied to each control valve through the water passing channels and the flow pipes. This design simplifies the water supply process, saves pipelines, and improves the reliability of the water supply pipeline.

[0054] In one embodiment, the clutch device 3 further includes a snap ring 32 and a clutch driving member 33. The snap ring 32 is fixed on the main shaft 21, and a snap hole 311 matching the snap ring 32 is provided at the center of the chuck 31; the clutch driving member 33 is connected to the chuck 31 and is used to push the chuck 31 to axially move relative to the snap ring 32, so that the chuck 31 is engaged or separated from the snap ring 32.

[0055] When it is necessary to clean the outer wall of the inner cylinder 12, the clutch driving member 33 is used to drive the chuck 31 to separate from the snap ring 32. At this time, the inner cylinder 12 can rotate relative to the cleaner 4, so that the cleaner 4 can clean the outer wall of the inner cylinder 12; when it is necessary to clean the inner wall of the outer cylinder 11, the clutch driving member 33 is used to drive the chuck 31 to engage with the snap ring 32. At this time, the motor 2 can drive the cleaner 4 to rotate relative to the outer cylinder 11, so that the cleaner 4 can clean the inner wall of the outer cylinder 11.

[0056] In one embodiment, the clutch driving member 33 is an elastic telescopic electromagnet. The elastic telescopic electromagnet includes a fixed part and a telescopic rod that can telescopically move relative to the fixed part. The fixed part is fixedly arranged relative to the outer cylinder 11. An annular sliding groove 313 coaxial with the main shaft 21 is provided on the chuck 31, and the telescopic rod is slidably connected to the annular sliding groove 313. The chuck 31 is axially moved by the telescopic movement of the telescopic rod to achieve engagement or separation from the snap ring 32.

[0057] Among them, the elastic telescopic electromagnet provides telescopic power through a spring and an electromagnet. When the electromagnet is powered on, it generates a magnetic force to attract and hold the telescopic rod, driving the telescopic rod to retract; when the electromagnet is powered off, the telescopic rod is automatically ejected under the elastic force of the spring, causing the telescopic rod to extend. Therefore, using the elastic telescopic electromagnet can drive the chuck 31 to move axially. An annular sliding groove 313 is provided on the chuck 31 and is slidably connected to the telescopic rod, so that the telescopic movement of the telescopic rod can drive the chuck 31 to move. Importantly, when the chuck 31 engages with the snap ring 32, the telescopic rod does not hinder the rotation of the chuck 31. Compared with other complex mechanical clutch devices 3, the structure of the elastic telescopic electromagnet is more concise, reducing the number of components and failure points.

[0058] In one embodiment, a connection head is provided at one end of the telescopic rod away from the fixed part, and a connection groove is provided on the side wall of the annular sliding groove 313 on the chuck 31. The connection head is snapped into the connection groove to limit the separation of the chuck 31 from the telescopic rod.

[0059] Providing a connection head at one end of the telescopic rod away from the fixed part and a connection groove on the side wall of the annular sliding groove 313 of the chuck 31 ensures a stable connection between the telescopic rod and the chuck 31, avoiding the problem of accidental separation caused by vibration or external force during the cleaning process.

[0060] In one embodiment, the fixed part is fixed outside the outer cylinder 11, and a through hole is provided on the outer cylinder 11. The telescopic rod extends through the through hole into the interior of the outer cylinder 11 to be connected to the chuck 31.

[0061] Placing the fixed part outside the outer cylinder 11 and connecting the telescopic rod and the chuck 31 through the through hole makes the structure of the entire clutch device 3 more compact, which helps to save space inside the washing machine and makes the layout of other components more reasonable. On the other hand, when the washing machine is working, water will accumulate inside the outer cylinder 11. Placing the fixed part outside the outer cylinder 11 can prevent it from being soaked in water, ensuring that it is not affected by the water and detergent inside the washing machine, thereby extending its service life. At the same time, this layout also facilitates the maintenance and replacement of the fixed part.

[0062] In one embodiment, a sealing ring 331 surrounding the inner circumference of the through hole is provided on the outer cylinder 11, and the telescopic rod is in close contact with the inner circumference of the sealing ring 331.

[0063] Based on the setting of the sealing ring 331, it is possible to prevent problems such as water, detergent and other liquids or impurities inside the washing machine from seeping through the through-hole to the outside of the outer tub 11 and damaging components such as the fixing part and the electromagnet. The sealing ring 331 is usually made of elastic materials such as rubber or silica gel. It can closely fit on the inner circumference of the through-hole and the outer surface of the telescopic rod, forming an effective sealing barrier. This sealing performance can prevent water, detergent and other liquids or impurities inside the washing machine from leaking out through the through-hole. In addition, the sealing ring 331 also has a certain buffering and shock-absorbing effect. During the operation of the washing machine, due to the action of vibration and impact force, the telescopic rod may collide or rub against the edge of the through-hole. The presence of the sealing ring 331 can reduce the damage to the telescopic rod and the through-hole caused by such collision and friction, and extend the service life of the clutch device 3.

[0064] In one embodiment, an installation disk 22 is provided on the housing of the motor 2, and the fixing part is fixed on the installation disk 22.

[0065] The installation disk 22 provides a stable support for the fixing part, which helps to reduce displacement and loosening phenomena caused by vibration and impact, thereby improving the stability of the clutch driving device.

[0066] In one embodiment, at least three elastic telescopic electromagnets are provided, and the three elastic telescopic electromagnets are circumferentially and uniformly distributed around the axis of the main shaft 21.

[0067] The circumferential and uniform distribution of the three elastic telescopic electromagnets around the main shaft 21 helps to achieve force balance. During the clutch process, each electromagnet will apply a certain force to the chuck 31 through its telescopic rod, enabling the chuck 31 to move stably.

[0068] In one embodiment, a plurality of first clamping blocks 321 are circumferentially and spacedly distributed on the snap ring 32, and a plurality of second clamping blocks 312 are circumferentially and spacedly distributed on the inner circumference of the clamping hole 311 of the chuck 31. The engagement between the chuck 31 and the snap ring 32 is achieved through the mutual engagement of the first clamping blocks 321 and the second clamping blocks 312.

[0069] Specifically, first card slots are formed between the spaced first clamping blocks 321, and second card slots are formed between the spaced second clamping blocks 312. During engagement, the first clamping blocks 321 are inserted into the second card slots, and the second clamping blocks 312 are inserted into the first card slots, enabling the snap ring 32 to push the chuck 31 to rotate synchronously. The precise matching of the card slots and the clamping blocks ensures a high degree of synchronism between the snap ring 32 and the chuck 31 during rotation, reducing the risk of failure caused by slippage or misalignment.

[0070] In one embodiment, the first clamping block 321 has a first tapered tip facing the side where the chuck 31 is located, and the second clamping block 312 has a second tapered tip facing the side where the clamping ring 32 is located. The first tapered tip and the second tapered tip can guide the first clamping block 321 and the second clamping block 312 to engage with each other.

[0071] The guiding action of the first tapered tip and the second tapered tip enables the first clamping block 321 and the second clamping block 312 to find each other more quickly and engage smoothly, thereby improving the engagement efficiency. In the specific application process of this embodiment, when the clutch driving member 33 drives the chuck 31 to move and combine with the clamping ring 32, the motor 2 can be controlled to rotate slowly. Even when the tips of the first clamping block 321 and the second clamping block 312 are in contact with each other, the driving of the motor 2 can drive the clamping ring 32 to rotate slowly, so that the tips of the first clamping block 321 and the second clamping block 312 can be smoothly displaced, and then guide the engagement of the first clamping block 321 and the second clamping block 312.

[0072] In one embodiment, a first retaining piece is provided on the inner wall of the outer cylinder 11, and a second retaining piece 314 is provided on the chuck 31. When the chuck 31 is separated from the clamping ring 32, the first retaining piece can block the second retaining piece 314 to limit the rotation of the chuck 31.

[0073] The first retaining piece on the inner wall of the outer cylinder 11 and the second retaining piece 314 on the chuck 31 together constitute a mechanism for restricting the rotation of the chuck 31, preventing the chuck 31 from rotating freely without control, so as to ensure that after the chuck 31 is separated, the inner cylinder 12 can rotate relative to the cleaner 4, enabling the cleaner 4 to clean the outer wall of the inner cylinder 12.

[0074] In the description herein, it should be understood that the orientation or positional relationships such as "upper", "lower", "left", "right", etc. are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0075] In the description of this specification, the description referring to terms such as "one embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example.

[0076] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only an independent technical solution. This narrative style of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0077] The technical principles of the present application have been described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the present application and cannot be construed in any way as a limitation on the protection scope of the present application. Based on the explanations herein, those skilled in the art can readily conceive of other specific embodiments of the present application without creative efforts, and these embodiments will fall within the protection scope of the present application.

Claims

1. A washing machine capable of automatic cleaning, characterized in that: include: A washing drum (1) comprises an inner drum (12) and an outer drum (11), wherein the inner drum (12) is arranged in the outer drum (11), a first installation space is formed between the bottom wall of the outer drum (11) and the bottom wall of the inner drum (12), and a second installation space is formed between the side wall of the outer drum (11) and the side wall of the inner drum (12); a motor (2) connected to a main shaft (21), wherein the main shaft (21) extends from the bottom of the outer cylinder (11) into the outer cylinder (11) and is connected to the inner cylinder (12) to drive the inner cylinder (12) to rotate; The clutch device (3) comprises a chuck (31), wherein the chuck (31) has an engaged state and a disengaged state. In the engaged state, the main shaft (21) drives the chuck (31) to rotate; in the disengaged state, the main shaft (21) can rotate relative to the chuck (31); A washer (4) is mounted on the chuck (31), comprising a support rod (42), a water supply pipeline, a nozzle (41) and a steering drive member (45), wherein one end of the support rod (42) is fixed to the chuck (31), and the other end extends to the second installation space; the water supply pipeline comprises a connected water inlet pipe and an adapter (43), and the adapter (43) is fixed to the end of the support rod (42) away from the chuck (31); the nozzle (41) is arranged in the second installation space, and its end is connected to the adapter (43). 3) a rotational connection, the water supply pipeline can supply water to the nozzle (41) through the adapter (43), and the nozzle (41) can rotate relative to the adapter (43), and a spray hole is provided on one side of the nozzle (41); the steering drive component (45) is connected to the nozzle (41) and is used to drive the nozzle (41) to rotate, the clutch device (3) is in an engaged state, and the spray hole faces the outer cylinder (11); the clutch device (3) is in a disengaged state, and the spray hole faces the inner cylinder (12).

2. The automatic washing machine according to claim 1, characterized in that: The steering drive component (45) comprises a control component (451) and a linkage component (452), wherein the control component (451) is arranged on the main shaft (21), and the linkage component (452) is arranged on the support rod (42), and the linkage component (452) is connected to the nozzle (41). When the clutch device (3) is in a disengaged state, the linkage component (452) is reset, and the nozzle hole faces the inner cylinder (12); when the clutch device is in an engaged state, the control component (451) pushes the linkage component (452) to change position, and the nozzle hole faces the outer cylinder (11).

3. The automatic washing machine according to claim 2, characterized in that: The linkage assembly (452) comprises a torsion spring (4523), a pull rope (4522) and a slider (4521); the torsion spring (4523) is sleeved outside the nozzle (41), one end of which is fixedly connected to the nozzle (41) and the other end is fixed to the support rod (42); the slider (4521) is slidably mounted on the support rod (42); one end of the pull rope (4522) is fixedly connected to the nozzle (41) and the other end is fixedly connected to the slider (4521); the clutch device ( 3) is in a separated state, the torsion spring (4523) drives the nozzle (41) to rotate to a position where the nozzle hole faces the inner tube (12), and the linkage assembly (452) is reset; when the clutch device (3) is in an engaged state, the control member (451) pushes the slider (4521), and the slider (4521) pulls the nozzle (41) to rotate to a position where the nozzle hole faces the outer tube (11) through the pull rope (4522), and the torsion spring (4523) is tightened.

4. The automatic washing machine according to claim 3, characterized in that: The control member (451) is disc-shaped, and a circular recessed groove (4511) is provided on the side facing the chuck (31). The side wall of the recessed groove (4511) is provided as a guide slope (4512). When the chuck (31) tends to engage with the main shaft (21), the slider (4521) slides into the recessed groove (4511) along the guide slope (4512), thereby enabling the control member (451) to push the slider (4521) to slide radially.

5. The automatic washing machine according to claim 2, characterized in that: The support rod (42) is a hollow rod, and the linkage assembly (452) and the adapter (43) are both installed in the support rod (42).

6. The automatic washing machine according to claim 1, characterized in that: The water supply pipeline comprises a water supply hard pipe and a water supply hose. The bottom wall of the outer cylinder (11) is provided with a pipe through hole, and the water supply hard pipe extends from the outside of the outer cylinder (11) to the inside of the outer cylinder (11) through the pipe through hole; one end of the water supply hose is connected to the water supply hard pipe, and the other end is connected to the adapter (43).

7. The automatic washing machine according to claim 6, characterized in that: The cleaning device (4) comprises a plurality of support rods (42) uniformly arranged in the circumferential direction around the axis of the chuck (31), each support rod (42) is provided with an adapter (43), and each adapter (43) is connected to a nozzle (41).

8. The automatic washing machine according to claim 7, characterized in that: The chuck (31) is provided with a water storage ring groove and a plurality of water flow channels corresponding to the adapter (43) respectively, and the water flow channels are connected to the adapter (43) through a flow pipe; the cleaning device (4) also includes an annular cover (44), and a connecting pipe head (441) is provided on the annular cover (44), and the annular cover (44) is covered on the chuck (31) to close the water storage ring groove, and one end of the water supply hose is connected to the water supply hard pipe, and the other end is connected to the connecting pipe head (441).

9. The automatic washing machine according to claim 8, characterized in that: The clutch device (3) also includes a snap ring (32) and a clutch driving member (33); the snap ring (32) is fixed on the main shaft (21); a snap hole (311) matching with the snap ring (32) is provided at the center of the chuck (31); the clutch driving member (33) is connected to the chuck (31) and is used to push the chuck (31) to move axially relative to the snap ring (32) so that the chuck (31) and the snap ring (32) are engaged or separated.

10. The automatic washing machine according to claim 9, characterized in that: The clutch driving member (33) is an elastic telescopic electromagnet, which comprises a fixed portion and a telescopic rod that can be telescoped relative to the fixed portion. The fixed portion is fixedly arranged relative to the outer cylinder (11). The chuck (31) is provided with an annular groove (313) coaxial with the main shaft (21). The telescopic rod is slidably connected to the annular groove (313). The telescopic rod is telescoped to push the chuck (31) to move axially to achieve engagement or separation with the clamping ring (32).

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