Deceleration clutch device of dual-drive washing machine, washing machine, and control method

Abstract

The present invention belongs to the technical field of laundry equipment. Disclosed are a deceleration clutch device of a dual-drive washing machine, a washing machine and a control method. The deceleration clutch device comprises: an input shaft on which an input shaft gear is fixedly provided; a brake wheel which can rotate bidirectionally and to which an input shaft sleeve sleeved on the input shaft is fixedly connected; a clutch sleeve which is sleeved on the input shaft sleeve, can slide in a reciprocating mode in the axial direction of the input shaft sleeve, and is engaged with or disengaged from the input shaft gear; an agitator shaft; a spin-dry shaft which is sleeved on the agitator shaft and can rotate with respect to the brake wheel; a gear mechanism which is provided in the brake wheel and is separately in driving connection with the input shaft, the agitator shaft and the spin-dry shaft; and a locking mechanism which is in limiting fit with a fitting structure provided on the brake wheel so as to lock the brake wheel. In the present invention, the clutch control and the brake control of the deceleration clutch device are independent of each other, so that a conversion between a washing condition and a spin-dry condition is more stable and reliable.

Description

A speed reduction clutch device for a dual-power washing machine, a washing machine and a control method thereof Technical Field

[0001] The present invention belongs to the field of laundry equipment, and in particular relates to a speed reduction clutch device of a dual-power washing machine, a washing machine and a control method. Background Art

[0002] A dual-power washing machine is a type of pulsator washing machine. During the wash cycle, the pulsator and inner drum rotate simultaneously in both directions, generating countercurrents of water to clean clothes. Conventional deceleration clutches used in dual-power washing machines primarily consist of a braking system, a clutch system, a transmission system, and a sealing system. During washing, the motor-driven spin shaft and pulsator shaft rotate simultaneously in both directions by limiting the rotation of the brake wheel. During dehydration, the brake wheel is released, allowing the motor to drive the spin shaft and pulsator shaft to rotate synchronously at high speed. Currently, commonly used deceleration clutches include the following two structures.

[0003] In the first type of deceleration clutch, under washing conditions, braking is achieved by the brake belt gripping the brake wheel. The motor drives the dehydration shaft and the impeller shaft to rotate in both directions simultaneously through a dual planetary gear reduction mechanism, generating a bidirectional counter-current flow. However, in the above structure, the brake belt can only brake the brake wheel in one direction. The braking of the brake wheel in the other direction is limited by a one-way bearing, for example, a one-way bearing provides a counterclockwise braking effect. When the motor power is too large or the direction is reversed quickly, the brake belt may not be able to grip the brake wheel, causing the brake wheel to rotate clockwise at a large angle. Furthermore, due to the rotation of the brake wheel, the dehydration shaft and the inner barrel connected to it will have a weak counterclockwise rotation angle, or even no counterclockwise rotation at all, thereby losing the function and effect of the dual-power deceleration clutch and affecting the user experience.

[0004] The second type of deceleration clutch features a clutch sleeve that slides up and down. By controlling the upward and downward sliding motion of the clutch sleeve, the brake wheel can be meshed with the deceleration clutch housing or input shaft, thereby achieving braking of the brake wheel or synchronous rotation with the input shaft, thereby switching between washing and dehydration modes. However, the upward and downward sliding motion of the clutch sleeve presents difficulties in engagement. In particular, when the clutch sleeve slides upward and engages the clutch disc on the housing, the clutch disc gear and the clutch sleeve gear may not align in position. Because the housing and the clutch disc mounted thereon are fixed, while the clutch sleeve is mounted on the brake wheel and is now separated from the input shaft gear on the input shaft, the brake wheel lacks direct driving power, making the relative circumferential motion of the clutch sleeve gear and the clutch disc gear difficult to control. Furthermore, since the clutch sleeve has already contacted the end of the clutch disc, even if the input shaft is controlled to rotate, it is difficult to drive the brake wheel to rotate through the inertia of the gear mechanism inside the deceleration clutch. The input shaft needs to be started and stopped multiple times to achieve the engagement of the clutch sleeve and the clutch disc. The operation is unstable, noisy, and the gear loss of the clutch sleeve and the clutch disc is large.

[0005] In view of this, the present invention is proposed.

[0006] Summary of the Invention

[0007] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing technology. On the first hand, a deceleration clutch device for a dual-power washing machine is provided, which can ensure that the force and effect of bidirectional rotation are the same under washing conditions, while improving the stability of the conversion between washing and dehydration conditions.

[0008] A second aspect of the present invention provides a washing machine having the above-mentioned speed reduction clutch device.

[0009] A third aspect of the present invention provides a control method for the washing machine.

[0010] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0011] A speed reduction clutch device for a dual-power washing machine, comprising:

[0012] an input shaft, on which an input shaft gear is fixedly disposed;

[0013] A brake wheel capable of bidirectional rotation, wherein the brake wheel is fixedly connected to an input shaft sleeve sleeved on the input shaft;

[0014] The clutch sleeve is sleeved on the input shaft sleeve and can slide back and forth along the axial direction of the input shaft sleeve to engage or disengage with the input shaft gear;

[0015] Impeller shaft;

[0016] A dehydration shaft is sleeved on the impeller shaft and can rotate relative to the brake wheel;

[0017] A gear mechanism is provided in the brake wheel and is respectively connected to the input shaft, the pulsator shaft and the dehydration shaft;

[0018] and a locking mechanism that cooperates with a matching structure provided on the brake wheel to lock the brake wheel.

[0019] Furthermore, the deceleration clutch device includes a housing having an internal chamber, the brake wheel is arranged in the internal chamber of the housing, and the locking mechanism is installed on the housing.

[0020] Furthermore, the locking mechanism includes a push rod that can move telescopically relative to the housing, and the matching structure includes a locking groove provided on the brake wheel, and one end of the push rod is inserted into the locking groove to lock the brake wheel.

[0021] Furthermore, the push rod telescopically moves along the radial direction of the brake wheel to lock or release the brake wheel.

[0022] Furthermore, the locking mechanism includes a guide channel fixedly arranged on the housing, the guide channel extends radially along the brake wheel, and the push rod is telescopically arranged in the guide channel.

[0023] Furthermore, the locking mechanism includes a driving part and a reset part; the driving part is used to drive the push rod to be pulled out of the locking groove to release the brake wheel; the reset part is used to provide a force to keep the push rod extending out of the guide channel and inserting into the locking groove.

[0024] Furthermore, the reset portion includes a compression spring arranged in the guide channel, one end of the compression spring is fixed in the guide channel, and the other end abuts against an end of the push rod away from the locking groove.

[0025] Furthermore, the driving portion includes an electromagnetic assembly, and the ejector rod is at least partially made of a material that can be attracted by magnetic force;

[0026] When the electromagnetic assembly is powered on, it generates magnetic force, attracting the push rod to overcome the force provided by the reset part and be pulled out of the locking groove; when the electromagnetic assembly is powered off, the push rod extends out of the guide channel under the action of the force provided by the reset part and is inserted into the locking groove.

[0027] Furthermore, the ejector rod comprises a guide section and a connecting section connected to each other, and the outer diameter of the guide section is larger than the outer diameter of the connecting section;

[0028] The guide section is located in the guide channel and slides along the guide channel; the plug-in section can extend out of the guide channel and be plugged into the locking groove to lock the brake wheel.

[0029] Furthermore, a first tubular portion extending radially outward is provided on the outer peripheral wall of the brake wheel, the extended end of the first tubular portion is opened, and a locking groove is formed inside the first tubular portion to be plugged into the plug-in section.

[0030] Furthermore, the outer diameter of the guide section is larger than the inner diameter of the first tubular portion.

[0031] Furthermore, a second tubular portion extending radially outward along the brake wheel is provided on the outer peripheral wall of the shell, and the guide channel is formed inside the second tubular portion; an opening is provided on the shell that is connected to the interior of the second tubular portion for the push rod to extend / retract.

[0032] A washing machine comprises the above-mentioned speed reduction clutch device of the dual-power washing machine.

[0033] A control method for the washing machine described above, wherein, in a washing mode, the locking mechanism is controlled to lock the brake wheel, the clutch sleeve is separated from the input shaft gear, the input shaft is driven to rotate, and the pulsator shaft and the dehydration shaft are driven to rotate respectively;

[0034] Under the dehydration working condition, the locking mechanism is controlled to release the brake wheel, the clutch sleeve is engaged with the input shaft gear, the input shaft is driven to rotate, and the impeller shaft and the dehydration shaft are driven to rotate synchronously.

[0035] Furthermore, the locking mechanism includes a telescopically movable top rod, and a locking groove is provided on the brake wheel;

[0036] After dehydration is completed, the clutch sleeve and the input shaft gear are kept in meshing state;

[0037] Controlling the push rod to extend, controlling the input shaft to rotate to drive the brake wheel to rotate synchronously, and the end of the push rod slides along the outer surface of the brake wheel until it is inserted into the locking groove;

[0038] The input shaft is controlled to stop rotating, and the clutch sleeve is controlled to separate from the input shaft gear.

[0039] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0040] In the present invention, the locking of the brake wheel is achieved through the limited cooperation between the locking mechanism and the matching structure on the brake wheel, and the braking effect of the brake wheel is more stable and reliable. This solves the problem that the dehydration shaft is prone to a small reverse rotation angle or even no reverse rotation during the washing process in the brake belt braking method, and ensures that the two-way rotation force and effect are the same in the dual-power mode, thereby improving the washing effect of the washing machine. At the same time, it also reduces the abnormal noise of the brake wheel and improves the user experience.

[0041] In the present invention, in the deceleration clutch device, the clutch control of the brake wheel and the input shaft, and the braking control of the brake wheel are independent of each other, avoiding the problem of difficult engagement when using the clutch sleeve to achieve braking in the prior art, making the conversion between washing and dehydration conditions more stable and reliable, while reducing the wear of the clutch sleeve and increasing the service life of related structures.

[0042] In the present invention, electromagnetic drive is used to control the telescopic movement of the top rod of the locking mechanism. The structure is simple and easy to implement. Moreover, the electromagnetic drive structure is easy to install compactly and requires a small installation space, which can avoid the problem of occupying too much space outside the deceleration clutch device.

[0043] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without inventive effort. In the accompanying drawings:

[0045] FIG1 is a schematic structural diagram of a deceleration clutch device in a first embodiment of the present invention;

[0046] FIG2 is a schematic diagram of the deceleration clutch device in the first embodiment of the present invention from another angle;

[0047] 3 is a bottom view of the deceleration clutch device in embodiment 1 of the present invention;

[0048] FIG4 is a schematic diagram of the BB section in FIG2 of the present invention;

[0049] FIG5 is an enlarged schematic diagram of point A in FIG4 of the present invention.

[0050] In the figure: 110, input shaft; 111, input shaft gear; 120, impeller shaft; 130, dehydration shaft; 210, clutch sleeve; 220, shift fork; 300, brake wheel; 310, locking groove; 320, first tubular portion; 410, upper end shell; 420, lower end shell; 500, locking mechanism; 510, push rod; 511, guide section; 512, plug-in section; 520, compression spring; 530, second tubular portion; 540, guide channel.

[0051] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0052] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0053] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0054] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0055] Embodiments of the present invention provide a deceleration clutch device for a dual-power washing machine, a washing machine having the deceleration clutch device, and a control method for the washing machine.

[0056] Specifically, as shown in Figures 1 to 3, the deceleration clutch device according to the embodiment of the present invention includes an input shaft 110, a pulsator shaft 120, and a dehydration shaft 130. The dehydration shaft 130 is sleeved on the pulsator shaft 120, and the two can rotate relative to each other. The input shaft 110 is transmission-connected to the pulsator shaft 120 and the dehydration shaft 130. The deceleration clutch device also includes a brake wheel 300. The lower portion of the brake wheel 300 is fixedly connected to the input shaft sleeve sleeved on the input shaft 110, and the upper portion of the brake wheel 300 is sleeved on the dehydration shaft 130 and can rotate relative to the dehydration shaft 130.

[0057] The deceleration clutch device further includes a gear mechanism disposed within the brake wheel 300, which is in transmission connection with the input shaft 110, the pulsator shaft 120, and the spin shaft 130. The specific structure of the gear mechanism can adopt the internal gear structure of the deceleration clutch used in dual-power washing machines in the prior art, thereby achieving at least the following two operating conditions:

[0058] In the washing mode, the brake wheel 300 is locked and cannot rotate. The rotation of the input shaft 110 drives the pulsator shaft 120 and the dehydration shaft 130 to rotate respectively through the transmission effect of the gear mechanism.

[0059] In the dehydration working condition, the brake wheel 300 is integrated with the input shaft 110. The rotation of the input shaft 110 drives the brake wheel 300 to rotate synchronously. At the same time, through the transmission action of the gear mechanism, the impeller shaft 120 and the dehydration shaft 130 can be driven to rotate synchronously.

[0060] As a specific implementation manner, under the washing condition, the impeller shaft 120 and the dehydration shaft 130 rotate separately, or the impeller shaft 120 and the dehydration shaft 130 rotate simultaneously and in opposite directions.

[0061] As another specific embodiment, under the washing condition, the impeller shaft 120 and the dehydration shaft 130 rotate separately, or the impeller shaft 120 and the dehydration shaft 130 rotate in the same direction but at a differential speed.

[0062] Furthermore, a washing machine equipped with the aforementioned speed reduction clutch device includes an inner tub for holding laundry, and a pulsator disposed within the inner tub. The inner tub is fixedly connected to a spin shaft 130, and the pulsator is fixedly connected to a pulsator shaft 120. The washing machine also includes a drive motor for driving the speed reduction clutch device. During operation, during the wash cycle, the speed reduction clutch device performs a wash operation. At this time, the drive motor drives the input shaft 110 to rotate, which, via the pulsator shaft 120 and the spin shaft 130, drives the pulsator and inner tub to rotate separately. For example, the pulsator and inner tub rotate simultaneously and in opposite directions, generating bidirectional countercurrents of water to wash the laundry. During the spin cycle, the speed reduction clutch device performs a spin cycle. At this time, the drive motor drives the input shaft 110 to rotate, which, via the pulsator shaft 120 and the spin shaft 130, drives the pulsator and inner tub to rotate synchronously at high speed for spin drying.

[0063] In the above solution, controlling the brake wheel 300 between a locked state (i.e., a braking state) and a state coupled to the input shaft 110 is crucial for switching between washing and spin modes. However, existing structures suffer from unstable braking, with the brake wheel 300 easily rotating, or difficulty switching between these states, resulting in significant wear and tear on the associated components.

[0064] Example 1

[0065] This embodiment is used to solve the above-mentioned problems, ensure braking reliability, and improve the switching stability between the washing mode and the dehydration mode.

[0066] Specifically, as shown in Figures 1 to 3, this embodiment provides a speed reduction clutch device for use in a dual-power washing machine. An input shaft gear 111 is fixedly mounted on the lower end of an input shaft 110. A clutch sleeve 210, which can slide axially up and down, is mounted on an input sleeve fixedly connected to a brake wheel 300. Clutch sleeve 210 has meshing teeth on its underside that engage with input shaft gear 111. A spline structure ensures circumferential engagement between the input sleeve and clutch sleeve 210, ensuring that the brake wheel 300, input sleeve, and clutch sleeve 210 rotate synchronously.

[0067] The clutch sleeve 210 slides downward to engage with the input shaft gear 111, thereby becoming integral with the input shaft 110. Rotation of the input shaft 110 can then drive synchronous rotation of the brake wheel 300. The clutch sleeve 210 slides upward to completely disengage from the input shaft gear 111. Rotation of the input shaft 110 does not transmit torque to the brake wheel 300.

[0068] The deceleration clutch device also includes a locking mechanism 500 for locking the brake wheel 300. A corresponding mating structure is provided on the brake wheel 300. The brake wheel 300 is disposed within the deceleration clutch device so as to be capable of bidirectional rotation. The locking mechanism 500 and the mating structure provide a position-limiting engagement to lock the brake wheel 300 in both directions.

[0069] In a further solution of this embodiment, the deceleration clutch device further includes a housing having an internal chamber, the brake wheel 300 is disposed in the internal chamber of the housing, and the locking mechanism 500 is mounted on the housing.

[0070] Specifically, the housing comprises an upper shell 410 and a lower shell 420, forming an internal chamber for mounting the brake wheel 300 therebetween. The locking mechanism 500 is mounted on the lower shell 420. The brake wheel 300 comprises a brake wheel body with an upper opening for accommodating the chamber, and a brake wheel axle fixedly connected to the open end of the brake wheel body. The mating structure is provided on the brake wheel body. A bidirectional bearing is provided between the brake wheel axle and the upper shell 410, enabling bidirectional rotation of the brake wheel 300 in this embodiment.

[0071] The bottom end surface of the lower end shell 420 has a through hole for the input shaft sleeve to pass through. The input shaft sleeve passes through the through hole and is connected to the input shaft sleeve. The clutch sleeve 210 is slidably arranged in the area where the input shaft sleeve passes through the lower end shell 420.

[0072] In the above solution, the deceleration clutch device achieves bidirectional braking of the brake wheel 300 by forming a limited engagement between the locking mechanism 500 and the mating structure. Compared to the existing braking method that uses a brake band to hold the brake, the one-way bearing can be eliminated, and the braking effect is more stable and reliable. This avoids the problem of the brake wheel 300 rotating in one direction during washing, ensuring that the force and effect of the inner drum's bidirectional rotation are the same during the washing process, thereby improving the washing machine's cleaning performance. It also reduces the noise caused by the brake wheel 300 rotating in the opposite direction, improving the user experience. The locking mechanism 500 is located on the lower end shell 420, directly locking the brake wheel 300 and reducing the transmission path.

[0073] Furthermore, in this embodiment, during dehydration operation, the clutch sleeve 210 must be controlled to slide downward to engage the input shaft gear 111, and the locking mechanism 500 must be controlled to release the brake wheel 300, thereby allowing the input shaft 110, clutch sleeve 210, input shaft sleeve, and brake wheel 300 to rotate synchronously as a whole. To achieve control over the upward and downward sliding of the clutch sleeve 210, the reduction clutch device further includes a shift fork assembly, which can be used to shift the clutch sleeve 210 to slide axially along the input shaft sleeve.

[0074] Specifically, the shift fork assembly includes a shift fork 220 and a shift fork seat, which is fixedly mounted on the lower end housing 420. One end of the shift fork 220 is limited on the outer periphery of the clutch sleeve 210 to shift it up and down. The middle portion of the shift fork 220 is rotatably mounted on the shift fork seat to form a lever structure. The other end of the shift fork 220 is in transmission connection with the clutch drive mechanism, which can drive the shift fork 220 to rotate about its middle portion, thereby shifting the clutch sleeve 210 up and down through the end of the shift fork 220.

[0075] Preferably, a clutch compression spring (not shown) is mounted on the input shaft sleeve and positioned between the clutch sleeve 210 and the bottom end surface of the lower end housing 420. When the end of the shift fork 220, located on the outer periphery of the clutch sleeve 210, swings upward, it pushes the clutch sleeve 210 upward while compressing the clutch compression spring. When the end of the shift fork 220 swings downward, the elastic force of the clutch compression spring pushes the clutch sleeve 210 downward, sliding along with the end of the shift fork 220 and returning it to its original position.

[0076] In this embodiment, the drive unit for controlling the operation of the locking mechanism 500 is independently configured from the clutch drive mechanism. That is, the locking mechanism 500 independently drives the locking and release of the brake wheel 300, as well as the upward and downward sliding engagement and disengagement of the clutch sleeve 210 with the input shaft gear 111. This avoids the difficulty encountered in prior art techniques of using a clutch sleeve to lock the brake wheel. This embodiment's approach makes the clutch control of the brake wheel 300 and the input shaft 110, as well as the braking control of the brake wheel 300 itself, independent of each other. This makes the transition between washing and dehydration operations more stable and reliable. It also helps reduce friction losses in the clutch sleeve 210, thereby increasing the service life of the clutch sleeve 210 and related structures.

[0077] In a further embodiment of the present invention, the locking mechanism 500 includes a push rod 510 that is telescopically movable relative to the lower end shell 420. The mating structure includes a locking groove 310 provided on the brake wheel 300. One end of the push rod 510 is inserted into the locking groove 310 to achieve a limited engagement, thereby locking the brake wheel 300.

[0078] As a specific implementation, the push rod 510 performs telescopic movement along the radial direction of the brake wheel 300 , thereby locking or releasing the brake wheel 300 .

[0079] Furthermore, in this embodiment, at least two locking mechanisms 500 are arranged on the lower end shell 420 at circumferential intervals along the brake wheel 300, and the brake wheel 300 is provided with the same number of locking grooves 310 as the locking mechanisms 500, and the locking grooves 310 are arranged in a one-to-one correspondence with the top rods 510 of the locking mechanism 500.

[0080] It can be understood that in this embodiment, the number of locking grooves can also be greater than the number of locking mechanisms. It is only necessary to reasonably distribute several locking grooves along the axial direction of the brake wheel so that when the brake wheel needs to be locked, the top rod of each locking mechanism can be inserted into a locking groove.

[0081] By setting up a combination of multiple sets of locking mechanisms 500 and locking grooves 310, when locking the brake wheel 300, it helps to reduce the interaction force between a single push rod 510 and the locking groove 310, thereby reducing the risk of structural damage and increasing the service life of the deceleration clutch device in this embodiment.

[0082] More specifically, the locking mechanism 500 is mounted on the outer circumferential wall of the lower end housing 420, and the push rod 510 can be extended or retracted toward the inner side of the lower end housing 420. A locking groove 310 is provided on the outer circumferential wall of the brake wheel body, and the push rod 510 can be inserted into the locking groove 310 when extended. Because the locking mechanism 500 is integrally fixed to the lower end housing 420, the brake wheel 300 and the lower end housing 420 are locked together.

[0083] In one detailed embodiment, a first tubular portion 320 extending radially outward is provided on the outer peripheral wall of the brake wheel body 300. The extended end of the first tubular portion 320 is open, and the interior of the first tubular portion 320 forms the locking groove 310. When the push rod 510 extends toward the inside of the lower end shell 420, it can be inserted into the locking groove 310 through the end opening of the first tubular portion 320, thereby locking the brake wheel 300 to the lower end shell 420.

[0084] Furthermore, the locking mechanism 500 includes a guide channel 540 fixedly mounted on the lower end housing 420. The guide channel 540 extends radially along the brake wheel 300, and the push rod 510 is retractably disposed within the guide channel 540. By limiting the movement direction of the push rod 510 through the guide channel 540, the push rod 510 can be more effectively controlled to extend and retract axially along the brake wheel 300, thereby accurately inserting the push rod 510 into the locking groove 310, thereby reducing the difficulty of locking the brake wheel 300.

[0085] In one embodiment, a second tubular portion 530 is provided on the outer peripheral wall of the lower end housing 420, extending radially outward from the brake wheel 300. A guide passage 540 is formed within the second tubular portion 530. The lower end housing 420 is provided with an opening that communicates with the interior of the second tubular portion 530 (i.e., the guide passage 540) and allows the ejector pin 510 to extend and retract.

[0086] In this embodiment, during washing operation, the push rod 510 extends through the opening in the lower end shell 420 to the inside of the lower end shell 420, thereby being inserted into the locking groove 310, thereby locking the brake wheel 300 and the lower end shell 420 as a whole. During dehydration operation, the push rod 510 is completely or mostly retracted into the interior of the second tubular portion 530, allowing the end of the push rod 510 closest to the axis of the brake wheel 300 to disengage from the locking groove 310, thereby releasing the brake wheel 300.

[0087] In a further solution, the push rod 510 includes a connected guide section 511 and a plug section 512 , wherein the plug section 512 is closer to the central axis of the brake wheel 300 , and the outer diameter of the guide section 511 is larger than the outer diameter of the plug section 512 .

[0088] The outer wall of the guide section 511 slidably engages with the inner wall of the second tubular portion 530, thereby confining the guide section 511 within the guide channel 540 and ensuring that the push rod 510 slides along the guide channel 540. When the push rod 510 telescopes along the guide channel 540, the plug section 512 extends or retracts from the opening in the lower end shell 420 into the guide channel 540. When extended, it can plug into the locking groove 310, thereby locking the brake wheel 300.

[0089] In the above embodiment, the outer diameter of the guide section 511 of the ejector pin 510 is substantially identical to the inner diameter of the second tubular portion 530, and a clearance fit is employed between the two, ensuring a guiding effect while reducing resistance to the telescopic movement of the ejector pin 510. The outer diameter of the plug section 512 is smaller than that of the guide section 511. This means that when the ejector pin 510 is retracted, the outer surface of the plug section 512 is spaced apart from the inner surface of the second tubular portion 530, completely avoiding contact. This further reduces sliding friction between the ejector pin 510 and the second tubular portion 530.

[0090] In this embodiment, to ensure that the insertion section 512 and the locking groove 310 effectively lock the brake wheel 300, the outer diameter of the insertion section 512 is substantially the same as the inner diameter of the first tubular portion 320, and the two are clearance-fitted. This prevents the insertion section 512 from wobbling within the locking groove 310 and affecting the stability of the locking of the brake wheel 300. It also reduces the resistance of the insertion section 512 when inserting into the locking groove 310, preventing the insertion section 512 from being unable to enter the locking groove 310.

[0091] In a further embodiment of this embodiment, the locking mechanism 500 further includes a driving unit and a restoring unit. The driving unit is used to drive the push rod 510 to retract into the guide channel 540, thereby withdrawing it from the locking groove 310 and releasing the brake wheel 300. The restoring unit applies a radial force to the push rod 510 toward the central axis of the brake wheel 300, thereby maintaining the push rod 510 extended from the guide channel 540 and inserted into the locking groove 310.

[0092] As a specific embodiment, the reset part includes a compression spring 520 arranged in the guide channel 540. The compression spring 520 is arranged along the extension direction of the guide channel 540, one end of which is fixed in the area of ​​the guide channel 540 away from the brake wheel 300, and the other end is against the end of the push rod 510 away from the locking groove 310.

[0093] When the deceleration clutch device is in the dehydration mode, the driving unit applies external force to the push rod 510, causing it to retract into the guide channel 540 against the elastic force of the compression spring 520, thereby releasing the brake wheel 300. At this time, the compression spring 520 is compressed by the push rod 510. When the washing mode is switched, the driving unit no longer applies external force, and the push rod 510 re-extends under the elastic force of the compression spring 520 and can be inserted into the locking groove 310, thereby locking the brake wheel 300.

[0094] In this embodiment, the second tubular portion 530 is positioned away from the opening at one end of the lower end shell 420. To this end, a securing structure for securing the end of the compression spring 520 is provided on the inner wall of the second tubular portion 530. The other end of the compression spring 520 can be fixedly connected to the end of the ejector pin 510, or it can be directly abutted without additional securing. By properly arranging the overall length of the ejector pin 510 or the length of the guide section 511, as well as the spacing between the inner wall of the lower end shell 420 and the locking groove 310, the ejector pin 510 can be prevented from falling out of the guide channel 540.

[0095] Specifically, since the outer diameter of the guide section 511 is greater than the outer diameter of the plug section 512 , the outer diameter of the guide section 511 is also greater than the inner diameter of the first tubular portion 320 .

[0096] In one specific embodiment, the length of the insertion section 512 is greater than the depth of the locking groove 310 along the insertion direction of the ejector pin 510. With this structure, when the ejector pin 510 extends from the guide channel 540 and inserts into the locking groove 310, the distal end of the insertion section 512 abuts against the bottom wall of the locking groove 310. By setting the total length of the ejector pin 510 to be greater than the distance between the inner wall of the lower end housing 420 and the bottom wall of the locking groove 310, the rear end of the ejector pin 510 remains within the guide channel 540 when the ejector pin 510 extends and abuts against the bottom wall of the locking groove 310.

[0097] Preferably, by setting the above dimensions, when the push rod 510 is extended to abut against the bottom wall of the locking groove 310 , at least half of the length of the guide section 511 is still located inside the guide channel 540 , thereby ensuring the stability of the push rod 510 .

[0098] As another specific embodiment, the length of the plug-in section 512 is greater than the depth of the locking groove 310 along the insertion direction of the ejector pin 510. With this structure, when the ejector pin 510 extends from the guide channel 540 and inserts into the locking groove 310, the open end of the first tubular portion 320 abuts against the stepped surface formed at the junction of the plug-in section 512 and the guide section 511, thereby limiting further movement of the ejector pin 510. By setting the length of the guide section 511 to be greater than the distance between the inner wall of the lower end shell 420 and the open end of the first tubular portion 320, it is ensured that when the ejector pin 510 extends to the point where it abuts against the stepped surface at the open end of the first tubular portion 320, the rear end of the guide section 511 remains within the guide channel 540.

[0099] Preferably, the above dimensions can be set so that when the push rod 510 extends out of the open end of the first tubular portion 320 and stops at the stepped surface, at least half of the length of the guide section 511 is still located inside the guide channel 540, thereby ensuring the stability of the push rod 510.

[0100] In one specific implementation of this embodiment, the external force applied by the driving unit to the push rod 510 is a magnetic force, and the push rod 510 is at least partially made of a material that is attracted by the magnetic force. Preferably, the entire push rod 510 is made of a material that is attracted by the magnetic force, which is easier to process. The material of the push rod 510 can be selected from steel, iron, nickel, etc.

[0101] Specifically, the driving unit includes an electromagnetic assembly. When powered on, the electromagnetic assembly generates a magnetic force, which attracts the push rod 510 to overcome the elastic force of the compression spring 520 and move it out of the locking groove 310, releasing the brake wheel 300. When the electromagnetic assembly is powered off, the magnetic force disappears, and the push rod 510, under the elastic force of the compression spring 520, re-extends from the guide channel 540 and then inserts into the locking groove 310, locking the brake wheel 300.

[0102] In a detailed structure, the electromagnetic component includes an electromagnetic coil for generating a magnetic field when energized. The electromagnetic coil is arranged in an area of ​​the second tubular portion 530 away from the lower end shell 420. The electromagnetic coil is spirally wound on the outer wall or inner wall of the second tubular portion 530, or can also be injection molded into the inside of the tube wall of the second tubular portion 530.

[0103] The use of an electromagnetic assembly to generate magnetic force to control the telescopic movement of ejector pin 510 is simple and easy to implement. Furthermore, the electromagnetic assembly, primarily consisting of an electromagnetic coil, requires minimal installation space, reducing the space occupied by the deceleration clutch. Furthermore, the generation and elimination of magnetic force can be controlled by simply turning the electromagnetic assembly on and off, eliminating complex control logic.

[0104] However, it is understandable that the method of driving the top rod 510 to perform telescopic movement in this embodiment is not limited to the use of electromagnetic components. For example, a motor can also be provided to cooperate with a transmission structure to drive the top rod 510 to perform telescopic movement.

[0105] This embodiment also provides a washing machine including the aforementioned speed reduction clutch device. Specifically, the washing machine includes an inner tub, a pulsator disposed within the inner tub, and a drive motor. The dehydration shaft 130 of the speed reduction clutch device is fixedly connected to the inner tub, the pulsator shaft 120 passes through the bottom of the inner tub and is fixedly connected to the pulsator, and the output end of the drive motor is connected to the input shaft 110, driving the input shaft 110 to rotate, thereby driving the inner tub and pulsator to rotate via the speed reduction clutch device.

[0106] The control method of the washing machine of this embodiment includes: in the washing mode, controlling the locking mechanism 500 to lock the brake wheel 300, separating the clutch sleeve 210 from the input shaft gear 111, driving the input shaft 110 to rotate, and driving the pulsator shaft 120 and the dehydration shaft 130 to rotate respectively;

[0107] Under the dehydration working condition, the locking mechanism 500 is controlled to release the brake wheel 300, the clutch sleeve 210 is engaged with the input shaft gear 111, the input shaft 110 is driven to rotate, and the drive impeller shaft 120 and the dehydration shaft 130 rotate synchronously.

[0108] As a specific embodiment, under the washing condition, the driving input shaft 110 is rotated, which can drive the pulsator shaft 120 and the dehydration shaft 130 to rotate simultaneously and in opposite directions.

[0109] Specifically, during the washing process, the deceleration clutch device performs the washing mode. At this point, the electromagnetic assembly in the locking mechanism 500 is de-energized, and the push rod 510 remains inserted into the locking slot 310 under the elastic force of the compression spring 520, locking the brake wheel 300 to the lower end housing 420. The washing machine's drive motor drives the input shaft 110 to rotate alternately forward and reverse according to a set rotation-stop ratio. This is transmitted through the gear mechanism within the brake wheel 300, causing both the pulsator shaft 120 and the spin shaft 130 to rotate alternately forward and reverse, with the rotation directions always opposite. This achieves a washing process in which the pulsator and inner tub rotate alternately forward and reverse in opposite directions.

[0110] During the spin cycle, the deceleration clutch device engages the spin mode. The electromagnetic assembly in the locking mechanism 500 is energized to generate magnetic force, attracting the ejector pin 510 to retract into the guide channel 540, overcoming the elastic force of the compression spring 520. This pulls the ejector pin 510 out of the locking slot 310, releasing the brake wheel 300. The washing machine's drive motor drives the input shaft 110 to continuously rotate at a set speed. This, through the gear mechanism within the brake wheel 300, causes the pulsator shaft 120 and the spin shaft 130 to rotate synchronously at high speed, driving the pulsator and inner tub to rotate synchronously at high speed for spin operation.

[0111] In the washing machine of this embodiment, in the initial state, the deceleration clutch device maintains the washing mode. That is, after each spin cycle, the deceleration clutch device is controlled to switch from the spin cycle to the washing mode. Specifically, the washing machine controls the deceleration clutch device to switch from the spin cycle to the washing mode according to the following control flow:

[0112] After dehydration is completed, the clutch sleeve 210 and the input shaft gear 111 are kept in meshing state;

[0113] The control input shaft 110 rotates to drive the brake wheel 300 to rotate synchronously, and the locking groove 310 rotates to a position opposite to the top rod 510 of the locking mechanism 500;

[0114] The input shaft 110 is controlled to stop rotating, the push rod 510 of the locking mechanism 500 is controlled to extend and insert into the locking groove 310 , and then the clutch sleeve 210 is controlled to separate from the input shaft gear 111 .

[0115] More specifically, the process of switching the deceleration clutch device from the dehydration mode to the washing mode is as follows.

[0116] After the spin cycle is complete, the shift fork 220 remains inactive, maintaining the clutch sleeve 210 in a position where the lower portion of the input sleeve engages the input shaft gear 111. The drive motor is controlled to slowly rotate the input shaft 110 at a set low speed, at least lower than the output speed of the drive motor during the wash cycle. This allows the brake wheel 300 to rotate synchronously with the input shaft 110, locating the relative positions of the locking groove 310 and the push rod 510. When it is determined that the locking groove 310 has rotated with the brake wheel 300 to a position relative to the push rod 510, the drive motor is controlled to stop driving, thereby stopping both the input shaft 110 and the brake wheel 300. The deceleration clutch device can be provided with a position detection device for detecting the rotational position of the brake wheel 300. The washing machine controls the drive motor to stop driving based on the detection structure of the position detection device.

[0117] After the brake wheel 300 rotates to its proper position and stops, the electromagnetic assembly in the locking mechanism 500 is de-energized, eliminating the magnetic force attracting the push rod 510. The push rod 510 then extends under the elastic force of the compression spring 520 and inserts into the locking slot 310, locking the brake wheel 300. The shift fork 220 is then controlled to rotate, pushing the clutch sleeve 210 upward and separating it from the input shaft gear 111, completing the transition from the spin mode to the wash mode.

[0118] It is understandable that when the drive motor is controlled to stop, the brake wheel 300 may not stop exactly at the position where the locking groove 310 and the push rod 510 are opposite each other due to factors such as signal transmission delay or the inertia of the brake wheel 300 itself. However, at this time, the positional deviation between the push rod 510 and the locking groove 310 will not be too large. In this case, after the electromagnetic assembly is de-energized and the push rod 510 is extended, the end of the push rod 510 will stop and contact the end surface of the first tubular portion 320. At this time, it is only necessary to restart the drive motor, drive the input shaft 110 to drive the brake wheel 300 to rotate slightly, and the push rod 510 will be pushed into the locking groove 310 by the compression spring 520.

[0119] In the above solution, since the vertical sliding movement of the clutch sleeve 210 and the telescopic movement of the push rod 510 in the locking mechanism 500 are independently controlled, when switching from the dehydration mode to the washing mode, the input sleeve and input shaft 110 can be kept integrated, and the input shaft 110 can be used to drive the brake wheel 300 to rotate for positioning. Because the rotation of the brake wheel 300 is actively controlled by the input shaft 110, more precise positioning can be achieved, ensuring that the push rod 510 can be inserted into the locking groove 310.

[0120] In this embodiment, the washing machine's deceleration clutch device is equipped with a clutch sleeve 210 and a locking mechanism 500, both of which are independently controlled. The clutch sleeve 210 controls the engagement and disengagement of the brake wheel 300 from the input shaft 110, while the locking mechanism 500 is used to lock and release the brake wheel 300. Independent control of the clutch sleeve 210 and the locking mechanism 500 ensures that the bidirectional rotation force and effect are the same in the dual-power mode during the washing process, thereby improving the washing machine's cleaning performance and reducing the noise caused by the brake wheel 300 following rotation, enhancing the user experience. Furthermore, the transition between washing and dehydration modes is more stable and reliable, reducing wear on the clutch sleeve 210 and increasing the service life of the related components.

[0121] Example 2

[0122] The difference between this embodiment and the first embodiment is that the locking groove is a concave groove structure provided on the outer peripheral wall of the brake wheel. In other words, the outer peripheral wall of the brake wheel does not have any protrusions on the circumference where the locking groove is located.

[0123] In this embodiment, the deceleration clutch device has the above-mentioned structure, and the deceleration clutch device can be switched from the dehydration mode to the washing mode according to the following control process:

[0124] After dehydration is completed, the clutch sleeve and the input shaft gear are kept in meshing state;

[0125] The push rod of the control locking mechanism is extended, and the input shaft is controlled to rotate to drive the brake wheel to rotate synchronously. The end of the push rod slides along the outer surface of the brake wheel until it is inserted into the locking groove;

[0126] The input shaft is controlled to stop rotating, and the clutch sleeve is controlled to separate from the input shaft gear.

[0127] In the above scheme, when switching from dehydration mode to washing mode, the locking mechanism is first activated. The clutch sleeve remains engaged with the input shaft gear, while the input shaft sleeve remains coupled to the input shaft. The input shaft then drives the brake wheel to rotate synchronously, positioning the ejector rod and the locking groove relative to each other. Once the brake wheel rotates into position, the ejector rod automatically engages the locking groove, locking the ejector rod. At this point, the clutch sleeve is then disengaged from the input shaft gear, completing the transition from dehydration mode to washing mode.

[0128] Compared with the prior art method of using the clutch sleeve to slide up and down to achieve the washing and dehydration working mode conversion, the solution of this embodiment is more stable and reliable in the working mode conversion, and effectively avoids the situation where the driving motor driving the input shaft cannot complete the conversion after multiple starts and stops.

[0129] In a specific solution of this embodiment, the process of the washing machine controlling the deceleration clutch device to switch from the dehydration mode to the washing mode is as follows.

[0130] After the spin cycle is complete, the shift fork remains inactive, maintaining the clutch sleeve positioned below the input sleeve and meshing with the input shaft gear. The electromagnetic assembly in the locking mechanism is de-energized, dissipating the magnetic force attracting the ejector pin. The ejector pin, acting under the elastic force of the compression spring, extends until its end contacts the outer surface of the brake wheel. After or simultaneously with the electromagnetic assembly's de-energization, the drive motor is controlled to slowly rotate the input shaft at a set low speed, at least lower than the output speed of the drive motor during the wash cycle. At this point, the end of the ejector pin contacts and slides along the outer surface of the brake wheel.

[0131] When the locking groove on the brake wheel rotates to a position opposite the push rod, the elastic force of the compression spring pushes the push rod into the locking groove, thereby locking the brake wheel. At this time, the drive motor is controlled to stop driving, causing the input shaft to stop rotating. The shift fork is then controlled to rotate and push the clutch sleeve to slide upward and disengage from the input shaft gear, completing the transition from dehydration mode to washing mode.

[0132] In order to determine the timing of controlling the input shaft to stop rotating, the washing machine needs to determine whether the push rod is inserted into the locking groove. To this end, the present embodiment further adopts the following technical solution.

[0133] In one specific embodiment, a position sensor, such as a microswitch, is provided on the locking mechanism or within the locking slot to detect the position of the ejector rod. This position sensor is triggered when the ejector rod extends and enters the locking slot. Upon receiving the triggering signal from the position sensor, the washing machine controls the drive motor to stop rotating the input shaft. After the input shaft stops rotating, the shift fork is activated to push the clutch sleeve upward and disengage from the input shaft gear.

[0134] As another specific embodiment, the washing machine acquires the output torque of the drive motor in real time during the aforementioned operating mode transition. When the brake wheel rotates synchronously with the input shaft, the output torque of the drive motor should remain stable provided both rotational speeds remain constant. However, once the push rod is inserted into the locking slot, locking the brake wheel, the brake wheel cannot rotate further. However, the input shaft sleeve, which is fixed to the brake wheel, remains integrally connected to the input shaft via the clutch sleeve, significantly increasing the output torque of the drive motor. Therefore, when the washing machine detects a signal indicating an increase in the output torque of the drive motor, it controls the drive motor to stop rotating the input shaft. After the input shaft stops rotating, it controls the shift fork to cause the clutch sleeve to slide upward and disengage from the input shaft gear.

[0135] In this embodiment, when switching from the dehydration mode to the washing mode, the washing machine first controls the locking mechanism to operate, while the clutch sleeve remains engaged with the input shaft gear. The input shaft can continue to drive the brake wheel to rotate for positioning, ensuring that the push rod can be accurately inserted into the locking groove, thereby locking the brake wheel and making the working mode conversion more stable.

[0136] Example 3

[0137] The difference between this embodiment and the above-mentioned embodiment 1 is that the installation position of the locking mechanism is different.

[0138] Specifically, in this embodiment, the locking mechanism is arranged on the bottom end face of the lower end shell of the deceleration clutch device, and the top rod therein can move telescopically up and down. When extended upward, it can be inserted into the locking groove to lock the brake wheel, and when retracted downward, it can be pulled out of the locking groove to release the brake wheel.

[0139] It will be appreciated that in the above embodiment, to enable the insertion of the push rod into the locking groove to lock the brake wheel, the locking mechanism is positioned eccentrically relative to the axis of the brake wheel. Accordingly, the locking groove is provided on the lower surface of the brake wheel, co-circumferentially with the push rod of the locking mechanism.

[0140] As a specific embodiment, the locking groove can employ a structure similar to that of Example 1. Specifically, a hollow tubular structure extending downward and open at the lower end is provided on the lower surface of the brake wheel. The interior of the hollow tubular structure forms the locking groove. When the push rod extends upward, it can be inserted into the interior of the hollow tubular structure, thereby locking the brake wheel.

[0141] With the above structure, the locking groove does not occupy the internal space of the brake wheel, thereby avoiding changes to the internal gear mechanism structure of the brake wheel 300.

[0142] As another specific implementation, the locking groove adopts a structure similar to that in Example 2. That is, a concave groove structure is provided on the lower surface of the brake wheel to form the locking groove.

[0143] With this structure, when switching from dehydration to washing mode, the push rod is first extended upward until it abuts against the underside of the brake wheel. The input shaft then drives the brake wheel to rotate synchronously, causing the upper end of the push rod to slide along the underside of the brake wheel. When the locking groove rotates above the push rod, the push rod automatically inserts into the locking groove, locking the brake wheel. This method increases the success rate of locking the brake wheel.

[0144] Example 4

[0145] The difference between this embodiment and the above-mentioned embodiment 1 is that the specific structures of the driving part and the reset part of the locking mechanism are different.

[0146] Specifically, the driving unit includes a flexible airbag and an air pump assembly connected to the flexible airbag, which can be used to inflate and pressurize the flexible airbag or to evacuate and depressurize the flexible airbag. The flexible airbag is positioned in an area of ​​the guide channel away from the brake wheel. The reset unit can be a tension spring or other elastic member that can provide an elastic tension to the ejector rod, with the direction of the elastic tension being the same as the direction of movement of the ejector rod when it is withdrawn from the locking groove.

[0147] When the brake wheel needs to be locked, the air pump assembly inflates and pressurizes the flexible airbag, increasing its volume and pushing the ejector rod to extend and insert into the locking groove, overcoming the elastic tension of the reset portion. When the brake wheel needs to be released, the air pump assembly decompresses the flexible airbag, causing the volume of the flexible airbag to shrink, and the ejector rod to be withdrawn from the locking groove under the elastic tension of the reset portion.

[0148] Furthermore, when multiple locking mechanisms are provided in the deceleration clutch device, an annular connecting cavity can be provided on the outside of the lower end shell, and multiple flexible airbags can be connected through the connecting cavity, so that the same air pump assembly can be used to simultaneously inflate or extract air from multiple flexible airbags.

[0149] In this embodiment, the locking mechanism is driven by air pressure. Especially when multiple locking mechanisms are provided, the same air pump assembly can control multiple push rods to perform telescopic movements simultaneously in a one-to-many manner.

[0150] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this patent can make slight changes or modifications to equivalent embodiments using the above technical content without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A speed reduction clutch device for a dual-power washing machine, characterized in that: include: An input shaft, on which an input shaft gear is fixedly arranged; A brake wheel capable of bidirectional rotation, wherein the brake wheel is fixedly connected to an input shaft sleeve sleeved on the input shaft; The clutch sleeve is sleeved on the input shaft sleeve and can slide back and forth along the axial direction of the input shaft sleeve to mesh with or disengage the input shaft gear; Pulsator shaft; A dehydration shaft, sleeved on the impeller shaft, and capable of rotating relative to the brake wheel; A gear mechanism is disposed in the brake wheel and is respectively connected to the input shaft, the impeller shaft and the dehydration shaft; And a locking mechanism is limitedly matched with a matching structure arranged on the brake wheel to lock the brake wheel.

2. The deceleration clutch device of the dual-power washing machine according to claim 1, characterized in that: The invention comprises a housing having an inner chamber, wherein the brake wheel is arranged in the inner chamber of the housing, and the locking mechanism is mounted on the housing.

3. The deceleration clutch device of the dual-power washing machine according to claim 2, characterized in that: The locking mechanism comprises a push rod which is telescopically movable relative to the housing, and the matching structure comprises a locking groove arranged on the brake wheel, and one end of the push rod is inserted into the locking groove to lock the brake wheel.

4. The deceleration clutch device of the dual-power washing machine according to claim 3, characterized in that: The push rod telescopes along the radial direction of the brake wheel to lock or release the brake wheel.

5. The deceleration clutch device of the dual-power washing machine according to claim 4, characterized in that: The locking mechanism comprises a guide channel fixedly arranged on the housing, the guide channel extends radially along the brake wheel, and the push rod is telescopically arranged in the guide channel.

6. The deceleration clutch device of the dual-power washing machine according to claim 5, characterized in that: The locking mechanism includes a driving part and a resetting part; the driving part is used to drive the push rod to be withdrawn from the locking groove to release the brake wheel; the resetting part is used to provide a force to keep the push rod extending out of the guide channel and inserted into the locking groove.

7. The deceleration clutch device of the dual-power washing machine according to claim 6, characterized in that: The reset portion comprises a compression spring arranged in the guide channel, one end of the compression spring is fixed in the guide channel, and the other end abuts against an end of the push rod away from the locking groove.

8. The deceleration clutch device of the dual-power washing machine according to claim 6 or 7, characterized in that: The driving part includes an electromagnetic assembly, and the ejector rod is at least partially made of a material that can be attracted by magnetic force; The electromagnetic assembly generates magnetic force when it is energized, attracting the push rod to overcome the force provided by the reset part, and the locking groove The electromagnetic assembly is powered off, and the ejector rod extends out of the guide channel under the action of the force provided by the reset portion and is inserted into the locking groove.

9. The deceleration clutch device of a dual-power washing machine according to any one of claims 5 to 8, characterized in that: The push rod comprises a connected guide section and an inserting section, wherein the outer diameter of the guide section is larger than the outer diameter of the inserting section; The guide section is located in the guide channel and slides along the guide channel; the plug-in section can extend out of the guide channel and be plugged and matched with the locking groove to lock the brake wheel.

10. The deceleration clutch device of the dual-power washing machine according to claim 9, characterized in that: A first tubular portion extending radially outward is arranged on the outer peripheral wall of the brake wheel, the extending end of the first tubular portion is opened, and a locking groove which is plugged and matched with the plug-in section is formed inside the first tubular portion.

11. The deceleration clutch device of the dual-power washing machine according to claim 10, characterized in that: The outer diameter of the guide section is greater than the inner diameter of the first tubular portion.

12. The deceleration clutch device of a dual-power washing machine according to any one of claims 5 to 11, characterized in that: A second tubular portion extending radially outwardly along the brake wheel is arranged on the outer peripheral wall of the shell, and the guide channel is formed inside the second tubular portion; an opening communicating with the inside of the second tubular portion for the push rod to extend / retract is arranged on the shell.

13. A washing machine, characterized in that: A deceleration clutch device for a dual-power washing machine comprising any one of claims 1-12.

14. A control method for a washing machine according to claim 13, characterized in that: Under the washing condition, the locking mechanism is controlled to lock the brake wheel, the clutch sleeve is separated from the input shaft gear, the input shaft is driven to rotate, and the pulsator shaft and the dehydration shaft are driven to rotate respectively; Under the dehydration condition, the locking mechanism is controlled to release the brake wheel, the clutch sleeve is meshed with the input shaft gear, the input shaft is driven to rotate, and the impeller shaft and the dehydration shaft are driven to rotate synchronously.

15. The control method of the washing machine according to claim 14, characterized in that: The locking mechanism comprises a telescopically movable top rod, and a locking groove is provided on the brake wheel; After dehydration is completed, the clutch sleeve and the input shaft gear are kept in meshing state; Control the push rod to extend, control the input shaft to rotate to drive the brake wheel to rotate synchronously, and the end of the push rod slides along the outer surface of the brake wheel until it is inserted into the locking groove; The input shaft is controlled to stop rotating, and the clutch sleeve is controlled to separate from the input shaft gear.

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