Self-cleaning washing machine

Abstract

The self-cleaning washing machine comprises a washing drum, a motor, a clutch device and a cleaner, the cleaner is installed on a chuck of the clutch device and comprises a supporting rod, a first spraying pipe, a second spraying pipe, a water supply pipeline and a control valve, 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 first spray pipe and the second spray pipe are both arranged in the second mounting space, and the end parts of the first spray pipe and the second spray pipe are respectively fixed on the supporting rod; the side, facing the side wall of the outer barrel, of the first spraying pipe is provided with first spraying holes, the side, facing the side wall of the inner barrel, of the second spraying pipe is provided with second spraying holes, the water supply pipeline, the first spraying pipe and the second spraying pipe are connected with the control valve, and the control valve controls the water supply pipeline to supply water to the first spraying pipe or the second spraying pipe. The main shaft drives the chuck and the cleaner to rotate relative to the outer cylinder, so that the inner wall of the outer cylinder is cleaned; the chuck is separated from the spindle, the spindle can only independently drive the inner cylinder to rotate, and the outer wall of the inner cylinder can be cleaned.

Description

Technical Field

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

[0002] The drum structure of a washing machine includes an outer tub and an inner tub structure. The outer tub is a fixed tub, and the inner tub is installed inside the outer tub. The rotating shaft of the motor passes through the bottom of the outer tub and is connected to the inner tub. The motor is used to drive the inner tub to rotate, so that the inner tub pushes the clothes to operate to achieve the laundry function. There is a certain gap between the inner tub and the outer tub. The inner wall of the outer tub and the outer wall of the inner tub are wall surfaces that the clothes cannot touch. After long-term use, dirt is likely to accumulate on the inner wall of the outer tub and the outer wall of the inner tub, and bacteria will breed. Therefore, a self-cleaning system is integrated in some washing machines to achieve the automatic cleaning function. However, the existing self-cleaning function of washing machines generally can only clean the inner wall of the outer tub and cannot clean the outer wall of the inner tub. For example, the Chinese authorized patent CN219808127U discloses an outer tub cleaning system and a washing machine, which directly set a rib structure with water spray holes and a water storage cavity on the side wall of the inner tub, and introduce a water inlet pipe into the water storage cavity. During operation, the rib structure can rotate with the inner tub, and the water spray holes spray water towards the inner wall of the outer tub to achieve the cleaning of the inner wall of the outer tub. 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 tub alone and cannot clean the outer wall of the inner tub.

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

[0005] Provide a self-cleaning washing machine, including:

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

[0007] A motor, connected with a main shaft, the main shaft extends from the bottom of the outer tub into the outer tub and is connected with the inner tub to drive the inner tub 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 cleaner is installed on the chuck and includes a support rod, a first spray pipe, a second spray pipe, a water supply pipeline and a control valve. One end of the support rod is fixed to the chuck, and the other end extends into the second installation space. The first spray pipe and the second spray pipe are both arranged in the second installation space, and the ends of the first spray pipe and the second spray pipe are respectively fixed to the support rod. The first spray pipe is provided with first spray holes on the side facing the side wall of the outer cylinder, and the second spray pipe is provided with second spray holes on the side facing the side wall of the inner cylinder. The water supply pipeline, the first spray pipe and the second spray pipe are respectively connected to the control valve, and the control valve is used to control the water supply pipeline to supply water to the first spray pipe or the second spray pipe.

[0010] Optionally, the control valve is a three-way valve, which includes an input port and two output ports. The water supply pipeline is connected to the input port, and the first spray pipe and the second spray pipe are respectively connected to the two output ports.

[0011] Optionally, a pipe-laying cavity is arranged in the support rod, and the control valve is arranged in the pipe-laying cavity.

[0012] Optionally, the water supply pipeline includes a water supply hard pipe and a water supply hose. A pipe-passing hole is arranged on the bottom wall of the outer cylinder, and the water supply hard pipe extends from outside the outer cylinder into the outer cylinder through the pipe-passing hole. One end of the water supply hose is connected to the water supply hard pipe, and the other end is connected to the control valve.

[0013] Optionally, the cleaner includes a plurality of support rods that are circumferentially and evenly arranged around the axis of the chuck. Each support rod is respectively provided with a control valve, and each control valve is respectively connected to a first spray pipe and a second spray pipe.

[0014] Optionally, a water storage ring groove and a plurality of water passing channels respectively corresponding to the control valves are arranged on the chuck. The water passing channels are connected to the input ports of the control valves through flow-through pipes. The cleaner further includes an annular cover, and a connection head is arranged on the annular cover. 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 hard pipe, and the other end is connected to the connection head.

[0015] 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 matching with the snap ring is arranged at the center of the chuck. The clutch driving member is connected to the chuck and is used to push the chuck to axially move relative to the snap ring so that the chuck is engaged or separated from the snap ring.

[0016] Optionally, the clutch driving member is an elastic telescopic electromagnet, which includes a fixed part and a telescopic rod that can be telescopic relative to the fixed part. The fixed part is fixedly arranged relative to the outer cylinder. An annular chute coaxial with the main shaft is provided on the chuck. The telescopic rod is slidably connected to the annular chute, and the axial movement of the chuck is pushed by the telescopic movement of the telescopic rod to engage or disengage with the snap ring.

[0017] Optionally, the fixed part is fixed outside the outer cylinder. A through hole is provided on the outer cylinder, and the telescopic rod extends into the inner part of the outer cylinder through the through hole to be connected with the chuck.

[0018] Optionally, a sealing ring surrounding the inner circumference of the through hole is provided on the outer cylinder, and the telescopic rod is in close contact with the inner circumference of the sealing ring.

[0019] The beneficial effects of this application are as follows: The present utility model provides a self-cleaning washing machine, which can not only clean the inner wall of the outer cylinder, but 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 a first spray pipe and a second spray pipe. The first spray pipe is provided with a first spray hole facing the outer cylinder, and the second spray pipe is provided with a second spray hole facing the inner cylinder. A control valve is provided to control the water supply direction. When the outer cylinder needs to be cleaned, the chuck is engaged with the main shaft, and the control valve controls the water supply to the first spray pipe alone; when the inner cylinder needs to be cleaned, the chuck is separated from the main shaft, and the control valve controls the water supply to the second spray pipe alone. Description of the Drawings

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

[0021] Figure 1 It is a schematic structural diagram of the self-cleaning washing machine according to the embodiment of this application;

[0022] Figure 2 It is a cross-sectional view of the self-cleaning washing machine according to the embodiment of this application;

[0023] Figure 3 It is a schematic structural diagram of the self-cleaning washing machine with the outer cylinder hidden according to the embodiment of this application;

[0024] Figure 4 It is a schematic structural diagram of the connection between the motor and the clutch device according to the embodiment of this application;

[0025] Figure 5 is Figure 4 a schematic structural view of another perspective of the structure shown;

[0026] Figure 6 is an exploded view of the clutch device described in the embodiment of the present application;

[0027] Figure 7 is Figure 6 a schematic structural view of another perspective of the structure shown.

[0028] In the figure:

[0029] 1. Laundry tub; 11. Outer tub; 12. Inner tub; 2. Motor; 21. Main shaft; 22. Mounting plate; 3. Clutch device; 31. Chuck; 311. Card hole; 312. Second card block; 313. Annular chute; 314. Water storage ring groove; 315. Second baffle; 32. Snap ring; 321. First card block; 33. Clutch drive member; 331. Sealing ring; 4. Cleaner; 41. Support rod; 42. Control valve; 43. First spray pipe; 44. Second spray pipe; 45. Annular cover; 451. Connection head. Detailed implementation manners

[0030] To make the technical problems solved by the present application, the technical solutions adopted and the achieved technical effects clearer, the technical solutions of the embodiments of the present application will be further described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application.

[0031] In the description of the present application, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" should 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 internal communication of 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 the present invention can be understood according to specific situations.

[0032] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and diagonally above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and diagonally below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

[0033] 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. By driving the inner drum to rotate with the motor, the inner drum can push 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. Therefore, some washing machines are integrated with a self-cleaning system to achieve the automatic cleaning function. However, the existing self-cleaning function of washing machines generally can only clean the inner wall of the outer drum and cannot 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, which directly sets a rib structure with water spraying holes and a water storage cavity on the side wall of the inner drum, and introduces a water inlet pipe into the water storage cavity. During operation, the rib structure can rotate with the inner drum, and the water spraying holes spray water towards the inner wall of the outer drum to achieve the cleaning of the inner wall of the outer drum.

[0034] To solve the above technical problems, referring to Figures 1-7, this embodiment provides a self - cleaning washing machine, including: 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 with 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 with 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 41, a first spray pipe 43, a second spray pipe 44, a water supply pipeline, and a control valve 42, one end of the support rod 41 is fixed to the chuck 31, and the other end extends into the second installation space; the first spray pipe 43 and the second spray pipe 44 are both disposed in the second installation space, and the end portions of the first spray pipe 43 and the second spray pipe 44 are respectively fixed to the support rod 41; a first spray hole is provided on one side of the first spray pipe 43 facing the side wall of the outer tub 11, a second spray hole is provided on one side of the second spray pipe 44 facing the side wall of the inner tub 12, the water supply pipeline, the first spray pipe 43, and the second spray pipe 44 are respectively connected with the control valve 42, and the control valve 42 is used to control the water supply pipeline to supply water to the first spray pipe 43 or the second spray pipe 44.

[0035] Among them, the water supply pipeline is introduced from outside the washing tub 1. To increase the cleaning pressure, a booster pump can be set for it so that it can supply high - pressure water to the first spray pipe 43 and the second spray pipe 44.

[0036] The self - cleaning washing machine based on 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 separates 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 first spray pipe 43 and a second spray pipe 44. The first spray pipe 43 is provided with a first spray hole facing the outer tub 11, and the second spray pipe 44 is provided with a second spray hole facing the inner tub 12. A control valve 42 is provided to control the water supply direction. When it is necessary to clean the outer tub 11, the chuck 31 engages with the main shaft 21, and the control valve 42 controls the water supply to the first spray pipe 43 alone; when it is necessary to clean the inner tub 12, the chuck 31 separates from the main shaft 21, and the control valve 42 controls the water supply to the second spray pipe 44 alone.

[0037] In one embodiment, the control valve 42 is a three - way valve, which includes an input port and two output ports. The water supply pipeline is connected to the input port, and the first spray pipe 43 and the second spray pipe 44 are respectively connected to the two output ports.

[0038] When it is necessary to clean the outer tub 11, the clutch device 3 makes the chuck 31 engage with the main shaft 21, and the inner tub 12 and the washer 4 rotate together. At this time, the three - way valve switches to conduct the first spray pipe 43, and the high - pressure water sprays onto the inner wall of the outer tub 11 through the first spray hole on the first spray pipe 43 to realize the cleaning of the outer tub 11. When it is necessary to clean the inner tub 12, the clutch device 3 makes the chuck 31 separate from the main shaft 21. The inner tub 12 rotates under the drive of the main shaft 21, and the washer 4 rotates relative to the inner tub 12 due to the loss of driving force. At this time, the three - way valve switches to the second spray pipe 44, and the high - pressure water sprays onto the outer wall of the inner tub 12 through the second spray hole on the second spray pipe 44 to realize the cleaning of the inner tub 12. The structure of the three - way valve is relatively simple, and the switching of the water flow direction can be realized by rotating or moving the valve core, which has the advantages of low cost and easy control. The three - way valve is specifically selected as an electric three - way valve, which is convenient for the washing machine control system to automatically control the opening direction of the three - way valve.

[0039] In one embodiment, a pipe - laying cavity is arranged inside the support rod 41, and the control valve 42 is arranged in the pipe - laying cavity.

[0040] The pipe laying cavity is located inside the support rod 41, making full use of the structural space of the support rod 41, avoiding the need to additionally set the installation position of the control valve 42 inside the washing machine, thereby saving valuable space. Additionally, the control valve 42 is arranged in the pipe laying cavity, which can also achieve the effect of saving pipelines because the input port of the three-way valve is only connected to one pipeline, and the two output ports need to be connected to two pipelines.

[0041] In one embodiment, the water supply pipeline includes a water supply hard pipe and a water supply flexible pipe. The bottom wall of the outer cylinder 11 is provided with a pipe passing hole, 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 control valve 42.

[0042] Specifically, the water supply hard pipe of the water supply pipeline passes through the pipe passing hole on the outer cylinder 11, enabling reliable connection with the outer cylinder 11 and ensuring the sealing performance of the connection. Preferably, in order to improve the anti-leakage ability, a waterproof ring can be arranged at 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 42. The advantage is that when the chuck 31 is engaged with the main shaft 21, the chuck 31, the support rod 41, the control valve 42 and other structures need to rotate following the main shaft 21. The deformable characteristic of the water supply flexible pipe can exactly meet the relative movement requirements of the two while always maintaining the connection between the control valve 42 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 operation, during the cleaning operation of 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, it rotates 360° each time, and when setting multiple groups of spray pipes, the rotation angle each time can be less than 360°), so as to meet the requirement of 360° cleaning of the inner wall of the outer cylinder 11. When using the normal laundry function, it is only necessary to keep the chuck 31 separated from the main shaft 21 at all times.

[0043] Similarly, the control valve 42 arranged in the support rod 41 needs to be connected to the control line and the power supply line introduced from the outside. When setting the lines, enough surplus amount can be reserved in the laundry tub 1 to avoid the problem that the lines are pulled and broken when the control valve 42 rotates around the main shaft 21.

[0044] In one embodiment, the cleaner 4 includes a plurality of the support rods 41 circumferentially and evenly arranged around the axis of the chuck 31. Each support rod 41 is respectively provided with a control valve 42, and each control valve 42 is respectively connected to a first spray pipe 43 and a second spray pipe 44.

[0045] When multiple spray pipes work simultaneously, the cleaning efficiency can be significantly improved. At the same time, when cleaning the outer cylinder 11, the angle of forward and backward rotation required for the chuck 31 each time can also be controlled within a small range.

[0046] In one embodiment, a water storage ring groove 314 and a plurality of water passing channels respectively corresponding to the control valves 42 one by one are provided on the chuck 31. The water passing channels are connected to the input ports of the control valves 42 through flow pipes. The cleaner 4 further includes an annular cover 45. A connection head 451 is provided on the annular cover 45. The annular cover 45 is covered on the chuck 31 to close the water storage ring groove 314. One end of the water supply hose is connected to the water supply rigid pipe, and the other end is connected to the connection head 451.

[0047] The setting of the water storage ring groove 314 enables the water flow from the water supply hose to be concentrated and stored first, and then dispersed and supplied to each control valve 42 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.

[0048] 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. 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 axially move relative to the snap ring 32, so that the chuck 31 is engaged with or separated from the snap ring 32.

[0049] 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.

[0050] 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 be telescopic 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. 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 be engaged with or separated from the snap ring 32.

[0051] 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 is engaged with the snap ring 32, the telescopic rod will 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.

[0052] 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.

[0053] Setting 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.

[0054] In one embodiment, the fixed part is fixed outside the outer cylinder 11. The outer cylinder 11 is provided with a through hole, and the telescopic rod extends into the inner part of the outer cylinder 11 through the through hole to be connected to the chuck 31.

[0055] 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 be stored inside the outer cylinder 11. Setting the fixed part outside the outer cylinder 11 can prevent it from being soaked in water, ensuring that it will not be 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.

[0056] In one embodiment, a sealing ring 331 is provided on the outer cylinder 11 around the inner circumference of the through hole, and the telescopic rod is in close contact with the inner circumference of the sealing ring 331.

[0057] 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 cylinder 11 and causing damage to components such as the fixing part and the electromagnet. The sealing ring 331 is usually made of an elastic material, such as rubber or silica gel, etc. 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 this collision and friction, and extend the service life of the clutch device 3.

[0058] 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.

[0059] The installation disk 22 provides a stable support for the fixing part, which helps to reduce displacement and loosening caused by vibration and impact, thereby improving the stability of the clutch driving device.

[0060] In one embodiment, at least three elastic telescopic electromagnets are provided, and the three elastic telescopic electromagnets are circumferentially and evenly distributed around the axis of the main shaft 21.

[0061] The three elastic telescopic electromagnets are circumferentially and evenly distributed around the main shaft 21, which helps to achieve force balance. During the clutch process, each electromagnet will apply a certain force to the chuck 31 through its telescopic rod, so that the chuck 31 can move stably.

[0062] In one embodiment, a plurality of first clamping blocks 321 are circumferentially and spaced apart on the snap ring 32, and a plurality of second clamping blocks 312 are circumferentially and spaced apart 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 by the mutual engagement of the first clamping blocks 321 and the second clamping blocks 312.

[0063] Specifically, a first clamping groove is formed between the spaced first clamping blocks 321, and a second clamping groove is formed between the spaced second clamping blocks 312. During engagement, the first clamping blocks 321 are inserted into the second clamping groove, and the second clamping blocks 312 are inserted into the first clamping groove, so that the snap ring 32 can push the chuck 31 to rotate synchronously. The precise matching of the clamping groove and the clamping block ensures the high synchronism of the snap ring 32 and the chuck 31 during rotation, reducing the risk of failure caused by slippage or misalignment.

[0064] 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.

[0065] The guiding effect 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 misaligned, and further guide the engagement of the first clamping block 321 and the second clamping block 312.

[0066] In one embodiment, a first stop piece is provided on the inner wall of the outer cylinder 11, and a second stop piece 315 is provided on the chuck 31. When the chuck 31 is separated from the clamping ring 32, the first stop piece can block the second stop piece 315 to limit the rotation of the chuck 31.

[0067] The first stop piece on the inner wall of the outer cylinder 11 and the second stop piece 315 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.

[0068] 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 therefore should not be construed as a limitation of the present application. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0069] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", etc. mean 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.

[0070] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. This narrative manner 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.

[0071] 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 self-cleaning washing machine, 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 cleaning device (4) is mounted on the chuck (31), comprising a support rod (41), a first nozzle (43), a second nozzle (44), a water supply pipeline and a control valve (42); one end of the support rod (41) is fixed to the chuck (31), and the other end extends to the second installation space; the first nozzle (43) and the second nozzle (44) are both arranged in the second installation space, and the ends of the first nozzle (43) and the second nozzle (44) are respectively fixed to the support rod (41); a first spray hole is provided on a side of the side wall of the first nozzle (43) facing the outer cylinder (11), and a second spray hole is provided on a side of the side wall of the second nozzle (44) facing the inner cylinder (12); the water supply pipeline, the first nozzle (43) and the second nozzle (44) are respectively connected to the control valve (42), and the water supply pipeline is controlled by the control valve (42) to supply water to the first nozzle (43) or the second nozzle (44).

2. The self-cleaning washing machine according to claim 1, characterized in that: The control valve (42) is a three-way valve, which includes an input port and two output ports, the water supply pipeline is connected to the input port, and the first nozzle (43) and the second nozzle (44) are respectively connected to the two output ports.

3. The self-cleaning washing machine according to claim 2, characterized in that: A pipe laying cavity is arranged in the support rod (41), and the control valve (42) is arranged in the pipe laying cavity.

4. The self-cleaning washing machine according to claim 3, 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 control valve (42).

5. The self-cleaning washing machine according to claim 4, characterized in that: The cleaning device (4) comprises a plurality of support rods (41) uniformly arranged around the axis of the chuck (31), each support rod (41) being provided with a control valve (42), and each control valve (42) being connected to a first nozzle (43) and a second nozzle (44).

6. The self-cleaning washing machine according to claim 5, characterized in that: The chuck (31) is provided with a water storage ring groove (314) and a plurality of water flow channels corresponding to the control valve (42) respectively, and the water flow channels are connected to the input port of the control valve (42) through a flow pipe; the cleaning device (4) also includes an annular cover (45), and a connecting pipe head (451) is provided on the annular cover (45). The annular cover (45) is covered on the chuck (31) to close the water storage ring groove (314); 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 (451).

7. The self-cleaning washing machine according to claim 1, 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.

8. The self-cleaning washing machine according to claim 7, 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).

9. The self-cleaning washing machine according to claim 8, characterized in that: The fixing portion is fixed outside the outer cylinder (11); a through hole is provided on the outer cylinder (11); the telescopic rod extends through the through hole to the inside of the outer cylinder (11) to be connected to the chuck (31).

10. The self-cleaning washing machine according to claim 9, characterized in that: The outer cylinder (11) is provided with a sealing ring (331) surrounding the inner circumference of the through hole, and the telescopic rod is in close contact with the inner circumference of the sealing ring (331).

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