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

Abstract

The invention belongs to the technical field of laundry equipment, and discloses a speed reduction clutch device of a dual-power washing machine, the washing machine and a control method. The brake wheel can rotate in two directions and is fixedly connected with an input shaft sleeve arranged on the input shaft in a sleeving manner; the clutch sleeve is arranged on the input shaft sleeve in a sleeving mode, can slide in the axial direction of the input shaft sleeve in a reciprocating mode and is meshed with or separated from the input shaft gear; the impeller shaft is sleeved with the dewatering shaft; the gear mechanism is arranged in the brake wheel and is in transmission connection with the input shaft, the impeller shaft and the dewatering shaft respectively; the brake wheel and the dewatering shaft can rotate relatively; the speed reduction clutch device further comprises a locking mechanism, a matching structure is arranged on the brake wheel, and the locking mechanism is matched with the matching structure in a limiting mode to lock the brake wheel. Clutch control and brake control of the speed reduction clutch device are mutually independent, and conversion of washing and dewatering working conditions is more stable and reliable.

Description

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 washing process, the pulsator and the inner drum can rotate in both directions at the same time, thereby generating a two-way counter-current flow of water to achieve washing of clothes. In the prior art, the deceleration clutch used in dual-power washing machines is mainly composed of a brake system, a clutch system, a transmission system and a sealing system. Under washing conditions, by limiting the rotation of the brake wheel, the motor can drive the dehydration shaft and the pulsator shaft to rotate in both directions at the same time; under dehydration conditions, the brake wheel is released, so that the motor can be used to drive the dehydration shaft and the 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 clamping the brake wheel with the brake belt, and the motor drives the dehydration shaft and the impeller shaft to rotate in both directions at the same time through the dual planetary gear deceleration mechanism, generating a bidirectional counter-current flow. However, in the above structure, the brake belt can only brake the brake wheel in one direction, and 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 changed quickly, the brake belt may not be able to clamp 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 thereto will have a weak counterclockwise rotation angle, or even be unable to rotate counterclockwise, thereby losing the function and effect of the dual-power deceleration clutch, affecting the user experience.

[0004] In the second type of deceleration clutch, a clutch sleeve that can slide up and down is provided. By controlling the clutch sleeve to slide up and down, the brake wheel can be meshed with the housing or input shaft of the deceleration clutch as a whole, thereby achieving the braking of the brake wheel or synchronous rotation with the input shaft, and then realizing the conversion of the washing mode and the dehydration mode. However, there is a problem of difficulty in meshing when the clutch sleeve slides up and down, especially when the clutch sleeve slides upward and meshes with the clutch disk on the housing, there is a situation where the position of the clutch disk gear and the clutch sleeve gear do not correspond. Since the housing and the clutch disk installed on the housing are fixed, and the clutch sleeve is installed on the brake wheel, and at this time it has been separated from the input shaft gear on the input shaft, the brake wheel has no direct driving power, so the relative movement of the clutch sleeve gear and the clutch disk gear in the circumferential direction is 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 internal gear mechanism of 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, the noise is loud, and the gear loss of the clutch sleeve and the clutch disc is large.

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

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a deceleration clutch device, a washing machine and a control method for a dual-power washing machine, which can ensure that the force and effect of bidirectional rotation under washing conditions are the same, while improving the stability of the conversion between washing and dehydration conditions.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0008] A speed reduction clutch device for a dual-power washing machine, comprising:

[0009] An input shaft, on which an input shaft gear is fixedly arranged;

[0010] A brake wheel capable of bidirectional rotation, wherein the brake wheel is fixedly connected to an input shaft sleeve sleeved on the input shaft;

[0011] A 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 from the input shaft gear;

[0012] A pulsator shaft, and a dehydration shaft sleeved on the pulsator shaft;

[0013] and a gear mechanism, which is arranged in the brake wheel and is respectively connected to the input shaft, the pulsator shaft and the dehydration shaft in a transmission manner;

[0014] The brake wheel and the dehydration shaft can rotate relative to each other;

[0015] The deceleration clutch device also includes a locking mechanism. A matching structure is provided on the brake wheel. The locking mechanism and the matching structure are limitedly matched to lock the brake wheel.

[0016] Furthermore, it also includes a shell having an internal chamber, the brake wheel is arranged in the internal chamber of the shell, and the locking mechanism is installed on the shell.

[0017] Furthermore, the locking mechanism includes a push rod that can be telescopically moved relative to the shell, and the matching structure includes 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.

[0018] Furthermore, the push rod telescopes along the radial direction of the brake wheel to lock or release the brake wheel.

[0019] Furthermore, the locking mechanism further 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.

[0020] Furthermore, the locking mechanism also 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.

[0021] Furthermore, the reset portion includes a compression spring disposed 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.

[0022] Further, 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;

[0023] The electromagnetic assembly is energized to generate 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 deenergized, 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.

[0024] Furthermore, the ejector rod comprises a guide section and a plug-in section connected to each other, and the outer diameter of the guide section is larger than the outer diameter of the plug-in section;

[0025] 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.

[0026] Furthermore, a first tubular portion extending radially outward is provided on the outer peripheral wall of the brake wheel, the extending end of the first tubular portion is open, and a locking groove is formed inside the first tubular portion to be plugged with the plug-in section.

[0027] Furthermore, an outer diameter of the guide section is greater than an inner diameter of the first tubular portion.

[0028] 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 communicating with the interior of the second tubular portion for extending / retracting the push rod is provided on the shell.

[0029] A washing machine comprises the speed reduction clutch device of the dual-power washing machine described above.

[0030] A control method for the washing machine described above, in the washing condition, controlling the locking mechanism to lock the brake wheel, the clutch sleeve is separated from the input shaft gear, driving the input shaft to rotate, and driving the pulsator shaft and the dehydration shaft to rotate simultaneously and oppositely;

[0031] 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.

[0032] Furthermore, the locking mechanism comprises a telescopically movable top rod, and a locking groove is provided on the brake wheel;

[0033] After dehydration is completed, the clutch sleeve and the input shaft gear are kept in meshing state;

[0034] 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;

[0035] The input shaft is controlled to stop rotating, and the clutch sleeve is controlled to separate from the input shaft gear.

[0036] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0037] 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, which solves the problem that the dehydration shaft is prone to a small reverse rotation angle or even cannot rotate in the reverse direction 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, while also reducing the abnormal noise of the brake wheel following the rotation, thereby improving the user experience.

[0038] 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 of washing and dehydration conditions more stable and reliable, while reducing the wear of the clutch sleeve and increasing the service life of related structures.

[0039] In the present invention, an electromagnetic drive is used to control the top rod of the locking mechanism to perform telescopic movement. The structure is simple and easy to implement. In addition, 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 reduction clutch device.

[0040] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] 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 improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0042] Figure 1 is a schematic structural diagram of a deceleration clutch device in Embodiment 1 of the present invention;

[0043] Figure 2 is a schematic diagram of the deceleration clutch device in the first embodiment of the present invention from another angle;

[0044] Figure 3 is a bottom view of the reduction clutch device in the first embodiment of the present invention;

[0045] Figure 4 The present invention Figure 2 Schematic diagram of the middle BB section;

[0046] Figure 5 The present invention Figure 4 A magnified schematic diagram of point A in the middle.

[0047] 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.

[0048] 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 are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0049] 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.

[0050] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0051] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] Embodiments of the present invention provide a speed reduction clutch device for a dual-power washing machine, a washing machine having the speed reduction clutch device, and a control method for the washing machine.

[0053] Specifically, Figures 1 to 3 As shown, the deceleration clutch device of the embodiment of the present invention comprises an input shaft 110, a pulsator shaft 120 and a dehydration shaft 130, wherein the dehydration shaft 130 is sleeved on the pulsator shaft 120, and the two can rotate relative to each other, and the input shaft 110 is respectively connected to the pulsator shaft 120 and the dehydration shaft 130 by transmission. The deceleration clutch device also comprises a brake wheel 300, the lower part of which is fixedly connected to the input shaft sleeve sleeved on the input shaft 110, and the upper part of which is sleeved on the dehydration shaft 130, and can rotate relative to the dehydration shaft 130.

[0054] The deceleration clutch device further includes a gear mechanism disposed in the brake wheel 300, and the gear mechanism is respectively connected to the input shaft 110, the pulsator shaft 120 and the dehydration shaft 130. The specific structure of the gear mechanism can adopt the internal gear structure of the deceleration clutch used in the dual-power washing machine in the prior art, so as to realize at least the following two working conditions:

[0055] In the washing condition, the brake wheel 300 is locked and cannot rotate, and the rotation of the input shaft 110 can drive the pulsator shaft 120 and the dehydration shaft 130 to rotate simultaneously and oppositely through the transmission effect of the gear mechanism;

[0056] In the dehydration working condition, the brake wheel 300 is integrated with the input shaft 110, and 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.

[0057] Furthermore, in the washing machine with the deceleration clutch device, an inner barrel for holding clothes and a pulsator arranged in the inner barrel are provided. The inner barrel is fixedly connected to the dehydration shaft 130, and the pulsator is fixedly connected to the pulsator shaft 120. The washing machine also includes a driving motor for driving the deceleration clutch device. When the washing machine is in operation, during the washing process, the deceleration clutch device performs the washing condition. At this time, the driving motor drives the input shaft 110 to rotate, and the pulsator and the inner barrel can be driven to rotate simultaneously and in opposite directions through the pulsator shaft 120 and the dehydration shaft 130, generating a two-way counter-current flow to wash the clothes. During the dehydration process, the deceleration clutch device performs the dehydration condition. At this time, the driving motor drives the input shaft 110 to rotate, and the pulsator and the inner barrel can be driven to rotate synchronously at a high speed through the pulsator shaft 120 and the dehydration shaft 130 to dehydrate.

[0058] In the above scheme, how to control the brake wheel 300 to switch between the locked state (i.e., the braking state) and the state of coupling with the input shaft 110 is the key to realize the switching between the washing state and the dehydration state. However, the existing structure has the problem of unstable braking, the brake wheel 300 is easy to follow the rotation, or the state switching is difficult, which causes great loss to the related structure.

[0059] Embodiment 1

[0060] 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.

[0061] Specifically, Figures 1 to 3 As shown, this embodiment provides a deceleration clutch device used in a dual-power washing machine. An input shaft gear 111 is fixedly arranged at the lower end region of the input shaft 110, and a clutch sleeve 210 that can reciprocate up and down along the axial direction is mounted on the input shaft sleeve that is fixedly connected to the brake wheel 300, and a clutch sleeve meshing tooth that can mesh with the input shaft gear 111 is arranged on the lower side of the clutch sleeve 210. The input shaft sleeve and the clutch sleeve 210 are matched in a circumferential limited manner through a spline structure, so that the brake wheel 300, the input shaft sleeve and the clutch sleeve 210 always rotate synchronously.

[0062] The clutch sleeve 210 can slide downward to mesh with the input shaft gear 111, thereby being integrated with the input shaft 110. At this time, the rotation of the input shaft 110 can drive the brake wheel 300 to rotate synchronously. The clutch sleeve 210 can slide upward to completely separate from the input shaft gear 111. At this time, the rotation of the input shaft 110 does not transmit torque to the brake wheel 300.

[0063] The deceleration clutch device further comprises a locking mechanism 500 for locking the brake wheel 300, and a corresponding matching structure is arranged on the brake wheel 300. The brake wheel 300 is arranged in the deceleration clutch device so as to be rotatable in both directions, and the locking mechanism 500 and the matching structure can realize the locking of the brake wheel 300 in both directions through the limited position matching between the locking mechanism 500 and the matching structure.

[0064] 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.

[0065] Specifically, the housing includes an upper shell 410 and a lower shell 420, an internal chamber for mounting the brake wheel 300 is formed between the two, and the locking mechanism 500 is mounted on the lower shell 420. The brake wheel 300 includes a brake wheel body with an upper opening accommodating chamber and a brake wheel shaft fixedly connected to the open end of the brake wheel body, and the matching structure is arranged on the brake wheel body. A bidirectional rotating bearing is arranged between the brake wheel shaft and the upper shell 410, so that the brake wheel 300 in this embodiment can rotate bidirectionally.

[0066] 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 with 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.

[0067] In the above scheme, the deceleration clutch device forms a limited fit between the locking mechanism 500 and the matching structure, which can realize bidirectional braking of the brake wheel 300. Compared with the braking method of the brake belt clamping in the prior art, the setting of the one-way bearing can be eliminated, and the braking effect is more stable and reliable. In this way, the problem of the brake wheel 300 rotating in one direction under the washing condition is avoided, and the force and effect of the bidirectional rotation of the inner barrel during the washing process are the same, thereby improving the washing effect of the washing machine, and at the same time reducing the abnormal sound of the brake wheel 300 rotating, improving the user experience. The locking mechanism 500 is set on the lower end shell 420, directly locking the brake wheel 300, reducing the transmission path.

[0068] Furthermore, in this embodiment, under the dehydration condition, it is necessary to control the clutch sleeve 210 to slide downward and mesh with the input shaft gear 111, and it is also necessary to control the locking mechanism 500 to release the brake wheel 300, so that the input shaft 110, the clutch sleeve 210, the input shaft sleeve and the brake wheel 300 are combined into one and rotate synchronously. In order to realize the control of the upward and downward sliding of the clutch sleeve 210, the speed reduction clutch device further includes a fork assembly, which can be used to shift the clutch sleeve 210 to slide axially along the input shaft sleeve.

[0069] Specifically, the fork assembly includes a fork 220 and a fork seat, and the fork seat is fixedly mounted on the lower end shell 420. One end of the fork 220 is limited on the outer periphery of the clutch sleeve 210 to slide it up and down, and the middle part of the fork 220 is rotatably mounted on the fork seat to form a lever structure. The other end of the fork 220 is connected to the clutch drive mechanism, and the clutch drive mechanism can drive the fork 220 to rotate around its middle, and then the clutch sleeve 210 is driven to slide up and down through the end of the fork 220.

[0070] Preferably, a clutch compression spring (not shown in the figure) is sleeved on the input shaft sleeve, and the clutch compression spring is arranged between the clutch sleeve 210 and the bottom end surface of the lower end shell 420. The end of the shift fork 220 located on the outer periphery of the clutch sleeve 210 swings upward, which can push the clutch sleeve 210 to slide upward and compress 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 to slide downward and reset along with the end of the shift fork 220.

[0071] In this embodiment, the driving part for controlling the action of the locking mechanism 500 is independently arranged from the clutch driving mechanism. That is to say, the locking and releasing of the brake wheel 300 by the locking mechanism 500, and the meshing and separation of the clutch sleeve 210 sliding up and down with the input shaft gear 111 are independently driven. In this way, the problem of difficulty in meshing the brake wheel by using the clutch sleeve in the prior art is avoided. The scheme of this embodiment 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, so that the conversion between the washing working condition and the dehydration working condition is more stable and reliable, and it is also conducive to reducing the friction loss of the clutch sleeve 210, thereby increasing the service life of the clutch sleeve 210 and related structures.

[0072] In a further solution of this embodiment, the locking mechanism 500 includes a push rod 510 that can telescopically move relative to the lower end shell 420, and the matching 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 limited matching, thereby locking the brake wheel 300.

[0073] 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 .

[0074] 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 one-to-one with the top rods 510 of the locking mechanism 500.

[0075] 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 a number of 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.

[0076] By providing a combination of multiple 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.

[0077] More specifically, the locking mechanism 500 is arranged on the outer peripheral wall of the lower end shell 420, and the push rod 510 can extend or retract toward the inner side of the lower end shell 420. The locking groove 310 is arranged on the outer peripheral wall of the brake wheel body, and the push rod 510 can be inserted into the locking groove 310 when extended. Since the locking mechanism 500 is integrally fixedly mounted on the lower end shell 420, the brake wheel 300 and the lower end shell 420 can be locked as a whole.

[0078] In a detailed solution, a first tubular portion 320 extending radially outward is provided on the outer peripheral wall of the brake wheel body of the brake wheel 300, and an extension end of the first tubular portion 320 is provided with an opening, and the locking groove 310 is formed inside the first tubular portion 320. When the push rod 510 extends toward the inner side of the lower end shell 420, the end opening of the first tubular portion 320 can be inserted into the locking groove 310, thereby locking and fixing the brake wheel 300 and the lower end shell 420.

[0079] Furthermore, the locking mechanism 500 further includes a guide channel 540 fixedly arranged on the lower end shell 420, the guide channel 540 extending radially along the brake wheel 300, and the push rod 510 being telescopically arranged in 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 better controlled to be telescopic along the axial direction of the brake wheel 300, and then accurately inserted into the locking groove 310, thereby reducing the difficulty of locking the brake wheel 300.

[0080] As a specific embodiment, a second tubular portion 530 extending radially outwardly along the brake wheel 300 is provided on the outer peripheral wall of the lower end shell 420, and a guide channel 540 is formed inside the second tubular portion 530. An opening is provided on the lower end shell 420, which is connected to the inside of the second tubular portion 530 (i.e., the guide channel 540) and allows the ejector rod 510 to extend / retract.

[0081] In this embodiment, in the washing operation, the push rod 510 extends through the opening on the lower end shell 420 to the inner side of the lower end shell 420, thereby being inserted into the locking groove 310, and the brake wheel 300 is locked as a whole with the lower end shell 420. In the dehydration operation, the push rod 510 is completely or mostly retracted into the second tubular portion 530, so that the end of the push rod 510 close to the axis of the brake wheel 300 is disengaged from the locking groove 310, thereby releasing the brake wheel 300.

[0082] In a further solution, the push rod 510 includes a connected guide section 511 and an inserting section 512 , wherein the inserting section 512 is closer to the central axis of the brake wheel 300 , and the outer diameter of the guide section 511 is greater than the outer diameter of the inserting section 512 .

[0083] The outer wall of the guide section 511 is slidably matched with the inner wall of the second tubular portion 530, so that the guide section 511 is limited in the guide channel 540, ensuring that the push rod 510 slides along the guide channel 540. When the push rod 510 performs telescopic movement along the guide channel 540, the plug-in section 512 extends out of the opening on the lower end shell 420 or retracts into the guide channel 540, and when extending, it can be plugged into the locking groove 310 to lock the brake wheel 300.

[0084] In the above solution, the outer diameter of the guide section 511 of the mandrel 510 is substantially the same as the inner diameter of the second tubular portion 530, and the two are clearance-matched to ensure the guiding effect while reducing the resistance to the telescopic movement of the mandrel 510. The outer diameter of the plug section 512 is smaller than the outer diameter of the guide section 511, that is, when the mandrel 510 is retracted, the outer surface of the plug section 512 is spaced from the inner surface of the second tubular portion 530 and does not contact at all, further reducing the sliding friction between the mandrel 510 and the second tubular portion 530.

[0085] In this embodiment, in order to ensure that the plug-in fit of the plug-in section 512 and the locking groove 310 can effectively lock the brake wheel 300, the outer diameter of the plug-in section 512 is substantially the same as the inner diameter of the first tubular portion 320, and the two are fitted with clearance. In this way, the plug-in section 512 can be prevented from shaking in the locking groove 310 and affecting the stability of locking the brake wheel 300, while reducing the resistance when the plug-in section 512 is inserted into the locking groove 310, and preventing the plug-in section 512 from being unable to enter the locking groove 310.

[0086] In a further solution of this embodiment, the locking mechanism 500 further includes a driving part and a resetting part. The driving part is used to drive the push rod 510 to retract toward the guide channel 540, so as to be drawn out of the locking groove 310 and release the brake wheel 300. The resetting part provides a force to the push rod 510 in a radial direction toward the central axis of the brake wheel 300, so as to keep the push rod 510 in a state of extending out of the guide channel 540 so as to be inserted into the locking groove 310.

[0087] As a specific embodiment, the reset portion includes a compression spring 520 arranged in the guide channel 540, and 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.

[0088] When the deceleration clutch device performs the dehydration mode, the driving unit applies external force to the push rod 510, so that the push rod 510 overcomes the elastic force of the compression spring 520 and retracts into the guide channel 540, releasing the brake wheel 300. At this time, the compression spring 520 is compressed by the push rod 510. When the washing mode needs to be 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.

[0089] In this embodiment, the second tubular portion 530 is disposed away from the opening of one end of the lower shell 420. For this purpose, a fixing structure for fixing the end of the compression spring 520 is disposed 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 push rod 510, or can be directly abutted without additional fixing. By reasonably setting the total length of the push rod 510 or the length of the guide section 511, as well as the spacing distance between the inner wall of the lower shell 420 and the locking groove 310, it can be ensured that the push rod 510 will not fall out of the guide channel 540.

[0090] Specifically, since the outer diameter of the guide section 511 is greater than the outer diameter of the plug-in section 512 , the outer diameter of the guide section 511 is also greater than the inner diameter of the first tubular portion 320 .

[0091] As a specific implementation, the length of the plug section 512 is greater than the depth of the locking groove 310 along the insertion direction of the push rod 510. With the above structure, when the push rod 510 extends from the guide channel 540 and is inserted into the locking groove 310, the end surface of the plug section 512 stops and limits against the bottom wall of the locking groove 310. By setting the total length of the push rod 510 to be greater than the spacing distance between the inner wall of the lower end shell 420 and the bottom wall of the locking groove 310, it can be ensured that when the push rod 510 extends to stop against the bottom wall of the locking groove 310, the rear section of the push rod 510 is still located in the guide channel 540.

[0092] 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 .

[0093] As another specific embodiment, the length of the plug section 512 is greater than the depth of the locking groove 310 along the insertion direction of the push rod 510. With the above structure, when the push rod 510 extends from the guide channel 540 and is inserted 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 section 512 and the guide section 511, thereby limiting the further movement of the push rod 510. By setting the length of the guide section 511 to be greater than the spacing distance between the inner wall of the lower end shell 420 and the open end of the first tubular portion 320, it can be ensured that when the push rod 510 extends to the open end of the first tubular portion 320 and abuts against the stepped surface, the rear section of the guide section 511 is still located in the guide channel 540.

[0094] Preferably, by setting the above dimensions, when the push rod 510 extends out of the opening 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.

[0095] In a specific implementation of this embodiment, the external force applied by the driving unit to the top rod 510 is a magnetic force, and the top rod 510 is at least partially made of a material that can be attracted by the magnetic force. Preferably, the top rod 510 is made of a material that can be attracted by the magnetic force, which is easier to process. The material of the top rod 510 can be selected from steel, iron, nickel, etc.

[0096] Specifically, the driving part includes an electromagnetic component, which can generate magnetic force when powered on, thereby attracting the push rod 510 to overcome the elastic force of the compression spring 520 and move, and be pulled out of the locking groove 310 to release the brake wheel 300. When the electromagnetic component is powered off, the magnetic force disappears, and the push rod 510 will re-extend the guide channel 540 under the elastic force of the compression spring 520, and then insert into the locking groove 310 to lock the brake wheel 300.

[0097] 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.

[0098] The electromagnetic component is used to generate magnetic force to control the telescopic movement of the push rod 510, which has a simple structure and is easy to implement. Moreover, the main structure of the electromagnetic component is an electromagnetic coil, which requires a small installation space and can reduce the space occupied by the deceleration clutch device. In addition, by controlling the power on or off of the electromagnetic component, the generation and disappearance of the magnetic force can be controlled, and complex control logic can be avoided.

[0099] 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.

[0100] This embodiment also provides a washing machine including the above-mentioned speed reduction clutch device. Specifically, the washing machine includes an inner barrel, a pulsator disposed inside the inner barrel, and a driving motor. The dehydration shaft 130 of the speed reduction clutch device is fixedly connected to the inner barrel, the pulsator shaft 120 passes through the bottom of the inner barrel and is fixedly connected to the pulsator, and the output end of the driving motor is connected to the input shaft 110, driving the input shaft 110 to rotate, thereby driving the inner barrel and the pulsator to rotate through the speed reduction clutch device.

[0101] The control method of the washing machine of this embodiment includes: in the washing condition, 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 simultaneously and oppositely;

[0102] Under the dehydration condition, the locking mechanism 500 is controlled to release the brake wheel 300, the clutch sleeve 210 is meshed 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.

[0103] Specifically, during the washing process of the washing machine, the deceleration clutch device performs the washing operation. At this time, the electromagnetic assembly in the locking mechanism 500 is powered off, and the top rod 510 remains inserted into the locking groove 310 under the elastic force of the compression spring 520, locking and fixing the brake wheel 300 and the lower end shell 420. The driving motor of the washing machine drives the input shaft 110 to rotate forward and reverse alternately according to the set rotation-stop ratio. Through the transmission of the gear mechanism in the brake wheel 300, the pulsator shaft 120 and the dehydration shaft 130 both rotate forward and reverse alternately, and the rotation directions of the two are always opposite, thereby realizing the washing process in which the pulsator and the inner barrel rotate forward and reverse alternately in opposite directions.

[0104] During the dehydration process, the deceleration clutch device performs the dehydration operation, the electromagnetic assembly in the locking mechanism 500 is energized to generate magnetic force, attracting the push rod 510 to overcome the elastic force of the compression spring 520 and retract into the guide channel 540, and then the push rod 510 is pulled out of the locking groove 310, releasing the brake wheel 300. The driving motor of the washing machine drives the input shaft 110 to rotate continuously at a set speed, and through the gear mechanism in the brake wheel 300, the pulsator shaft 120 and the dehydration shaft 130 rotate synchronously at high speed, thereby driving the pulsator and the inner tub to rotate synchronously at high speed for dehydration.

[0105] In the initial state of the washing machine described in this embodiment, the deceleration clutch device maintains the washing mode. That is, after each dehydration, the deceleration clutch device is controlled to switch from the dehydration mode to the washing mode. Specifically, the washing device controls the deceleration clutch device to switch from the dehydration mode to the washing mode according to the following control process:

[0106] After dehydration is completed, the clutch sleeve 210 and the input shaft gear 111 are kept in meshing state;

[0107] The input shaft 110 is controlled to rotate to drive the brake wheel 300 to rotate synchronously, and the locking groove 310 is rotated to a position opposite to the top rod 510 of the locking mechanism 500;

[0108] 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 .

[0109] More specifically, the process of switching the deceleration clutch device from the dehydration mode to the washing mode is as follows.

[0110] After the dehydration is finished, the shift fork 220 does not move, and the clutch sleeve 210 is kept at the position where the lower part of the input shaft sleeve is meshed with the input shaft gear 111. The driving motor is controlled to drive the input shaft 110 to rotate slowly at a set low speed, and the low speed is at least lower than the output speed of the driving motor during the washing process. At this time, the brake wheel 300 can be driven to rotate synchronously with the input shaft 110 to locate the relative position of the locking groove 310 and the push rod 510. When it is determined that the locking groove 310 rotates with the brake wheel 300 to a position relative to the push rod 510, the driving motor is controlled to stop driving, and then the input shaft 110 and the brake wheel 300 both stop rotating. Among them, a position detection device for obtaining the rotation position of the brake wheel 300 can be set in the deceleration clutch device, and the washing machine controls the driving motor to stop driving according to the detection structure of the position detection device.

[0111] After the brake wheel 300 rotates to the right position and stops, the electromagnetic assembly in the locking mechanism 500 is controlled to be powered off, and the magnetic force that attracts the top rod 510 disappears. The top rod 510 can be extended under the elastic force of the compression spring 520 and inserted into the locking groove 310 to lock the brake wheel 300. Then, the fork 220 is controlled to rotate and push the clutch sleeve 210 to slide upward and separate from the input shaft gear 111, and the conversion from the dehydration mode to the washing mode can be completed.

[0112] It is understandable that when the driving motor is controlled to stop driving, the braking wheel 300 may not stop exactly at the position where the locking groove 310 and the push rod 510 are opposite to each other due to factors such as the delay in signal transmission or the inertia of the braking wheel 300 itself, but at this time, the position deviation between the push rod 510 and the locking groove 310 will not be too large. In this case, after the electromagnetic component is powered off and the push rod 510 is extended, the end of the push rod 510 will stop against the end surface of the first tubular portion 320. At this time, it is only necessary to restart the driving motor, drive the input shaft 110 to drive the braking wheel 300 to rotate slightly, and the push rod 510 can be pushed into the locking groove 310 by the compression spring 520.

[0113] In the above scheme, since the up and down sliding of the clutch sleeve 210 and the telescopic movement of the push rod 510 in the locking mechanism 500 are controlled independently, when switching from the dehydration mode to the washing mode, the input sleeve and the input shaft 110 can be kept in a state of being integrated, and the input shaft 110 can be used to drive the brake wheel 300 to rotate for positioning. Since the rotation of the brake wheel 300 is actively controlled by the input shaft 110, a more accurate positioning effect can be achieved, ensuring that the push rod 510 can be inserted into the locking groove 310.

[0114] In this embodiment, the deceleration clutch device of the washing machine is provided with a clutch sleeve 210 and a locking mechanism 500 which are independently controlled. The clutch sleeve 210 can control the combination and separation of the brake wheel 300 and the input shaft 110, and the locking mechanism 500 is used to lock or release the brake wheel 300. By independently controlling the clutch sleeve 210 and the locking mechanism 500, it is ensured that the bidirectional rotation force and effect are the same in the dual-power mode of the washing process, thereby improving the washing effect of the washing machine, reducing the abnormal sound of the brake wheel 300, and improving the user experience. At the same time, the conversion between the washing condition and the dehydration condition is more stable and reliable, reducing the wear of the clutch sleeve 210, and increasing the service life of the related structure.

[0115] Embodiment 2

[0116] The difference between this embodiment and the first embodiment is that the locking groove is a concave groove structure arranged on the outer peripheral wall of the brake wheel. In other words, there is no protrusion on the outer peripheral wall of the brake wheel on the circumference where the locking groove is located.

[0117] 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:

[0118] After dehydration is completed, the clutch sleeve and the input shaft gear are kept in meshing state;

[0119] The push rod of the locking mechanism is controlled to extend, and the input shaft is controlled 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;

[0120] The input shaft is controlled to stop rotating, and the clutch sleeve is controlled to separate from the input shaft gear.

[0121] In the above scheme, when switching from the dehydration mode to the washing mode, the locking mechanism is first controlled to move. At this time, the clutch sleeve is meshed with the input shaft gear, and the input shaft sleeve is still in a state of being combined with the input shaft. The input shaft can be used to drive the brake wheel to rotate synchronously to locate the relative position of the push rod and the locking groove. When the brake wheel rotates to the right position, the push rod can be automatically inserted into the locking groove to achieve locking. At this time, the clutch sleeve is controlled to separate from the input shaft gear, and the switching from the dehydration mode to the washing mode is completed.

[0122] Compared with the prior art method of using the clutch sleeve to slide up and down to achieve the washing and dehydration mode conversion, the scheme of this embodiment is more stable and reliable in the mode conversion, and effectively avoids the situation where the driving motor driving the input shaft cannot complete the conversion after multiple starts and stops.

[0123] 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.

[0124] After the dehydration is finished, the shift fork does not move, and the clutch sleeve is kept in the position where the lower part of the input sleeve is meshed with the input shaft gear. The electromagnetic assembly in the control locking mechanism is powered off, and the magnetic force that attracts the push rod disappears. The push rod is extended under the elastic force of the compression spring until the end thereof abuts against the outer surface of the brake wheel. After the electromagnetic assembly is powered off, or while the electromagnetic assembly is powered off, the drive motor is controlled to drive the input shaft to rotate slowly at a set low speed, which is at least lower than the output speed of the drive motor during the washing process. At this time, the end of the push rod abuts against the outer surface of the brake wheel and slides along the outer surface of the brake wheel.

[0125] When the locking groove on the brake wheel rotates to a position opposite to the push rod, the elastic force of the compression spring can push the push rod into the locking groove, thereby locking the brake wheel. At this time, the driving motor is controlled to stop driving, so that the input shaft stops rotating, and then the shift fork is controlled to rotate and push the clutch sleeve to slide upward and separate from the input shaft gear, so that the conversion from the dehydration mode to the washing mode can be completed.

[0126] 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.

[0127] As a specific implementation, a position sensor for detecting the position of the push rod, such as a micro switch, is provided on the locking mechanism or inside the locking groove, and the position sensor can be triggered when the push rod is extended and inserted into the locking groove. The washing machine receives a signal that the position sensor is triggered, that is, controls the drive motor to stop driving the input shaft to rotate, and after the input shaft stops rotating, controls the shift fork to move and push the clutch sleeve to slide upward and separate from the input shaft gear.

[0128] As another specific implementation, the washing machine obtains the output torque of the drive motor in real time during the above-mentioned working condition conversion process. When the brake wheel rotates synchronously with the input shaft, the output torque of the drive motor should remain stable when the rotation speeds of the two remain unchanged. Once the push rod is inserted into the locking groove and the brake wheel is locked, the brake wheel cannot rotate further, but the input shaft sleeve fixed to the brake wheel is still integrated with the input shaft through the clutch sleeve, and the output torque of the drive motor will increase significantly. Therefore, when the washing machine obtains a signal that the output torque of the drive motor increases, the drive motor can be controlled to stop driving the input shaft to rotate, and after the input shaft stops rotating, the shift fork is controlled to drive the clutch sleeve to slide upward and separate from the input shaft gear.

[0129] 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 operating condition conversion more stable.

[0130] Embodiment 3

[0131] The difference between this embodiment and the above-mentioned embodiment 1 is that the installation position of the locking mechanism is different.

[0132] Specifically, in this embodiment, the locking mechanism is arranged on the bottom end face of the lower end shell of the reduction clutch device, and the top rod therein can telescope up and down. When extending upward, it can be inserted into the locking groove to lock the brake wheel, and when retracting downward, it can be pulled out of the locking groove to release the brake wheel.

[0133] It is understandable that, in the above solution, in order to achieve that the brake wheel can be locked by inserting the push rod into the locking groove, the setting position of the locking mechanism is eccentrically arranged relative to the axis of the brake wheel. Correspondingly, the locking groove is arranged on the lower surface of the brake wheel and is located on the same circumference as the push rod of the locking mechanism.

[0134] As a specific implementation, the locking groove may adopt a structure similar to that in the first embodiment. That is, a hollow tubular structure extending downward and open at the lower end is provided on the lower surface of the brake wheel, and the locking groove is formed inside the hollow tubular structure. When the push rod extends upward, it can be inserted into the inside of the hollow tubular structure, thereby locking the brake wheel.

[0135] With the above structure, the locking groove does not occupy the internal space of the brake wheel, thus avoiding the modification of the internal gear mechanism structure of the brake wheel 300.

[0136] As another specific implementation, the locking groove adopts a structure similar to that in the second embodiment, that is, a concave groove structure is provided on the lower surface of the brake wheel to form the locking groove.

[0137] With the above structure, when switching from the dehydration mode to the washing mode, the push rod can be controlled to extend upward and stop at the lower surface of the brake wheel, and then the brake wheel is driven to rotate synchronously through the input shaft, so that the upper end of the push rod slides along the lower surface of the brake wheel. When the locking groove rotates to the top of the push rod, the push rod can be automatically inserted into the locking groove to lock the brake wheel. In this way, the success rate of locking the brake wheel is higher.

[0138] Embodiment 4

[0139] The difference between this embodiment and the above-mentioned embodiment 1 is that the specific structures of the driving part and the resetting part of the locking mechanism are different.

[0140] Specifically, the driving part includes a flexible airbag and an air pump assembly connected to the flexible airbag, and the air pump assembly can be used to inflate and pressurize the flexible airbag, or to evacuate and depressurize the flexible airbag. The flexible airbag is arranged in a region of the guide channel away from the brake wheel. The reset part can be a tension spring or other elastic member that can provide elastic tension to the ejector rod, and the direction of the elastic tension is the same as the direction of movement of the ejector rod when it is pulled out of the locking groove.

[0141] When the brake wheel needs to be locked, the air pump assembly inflates and pressurizes the flexible airbag, and the volume of the flexible airbag increases, thereby pushing the push rod to overcome the elastic tension of the reset part and extend out and insert into the locking groove. When the brake wheel needs to be released, the air pump assembly evacuates air from the flexible airbag to reduce pressure, and the volume of the flexible airbag shrinks, and the push rod is pulled out of the locking groove under the elastic tension of the reset part.

[0142] Furthermore, when multiple locking mechanisms are provided in the deceleration clutch device, an annular connecting cavity can be provided on the outer side 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 inflate or exhaust air from multiple flexible airbags at the same time.

[0143] In this embodiment, the locking mechanism is driven by air pressure, and especially when multiple locking mechanisms are provided, it is possible to achieve one-to-many control of multiple push rods by the same air pump assembly to perform telescopic movements simultaneously.

[0144] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.

Claims

1. A speed reduction clutch device for a dual-power washing machine, comprising: 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; A 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 from the input shaft gear; A pulsator shaft, and a dehydration shaft sleeved on the pulsator shaft; and a gear mechanism, which is arranged in the brake wheel and is respectively connected to the input shaft, the pulsator shaft and the dehydration shaft in a transmission manner; The brake wheel and the dehydration shaft can rotate relative to each other; It is characterized in that the deceleration clutch device also includes a locking mechanism, a matching structure is provided on the brake wheel, and the locking mechanism and the matching structure are limitedly matched 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 also comprises a housing having an internal chamber, wherein the brake wheel is arranged in the internal 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 further comprises a guide channel fixedly arranged on the housing, the guide channel extending 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 also 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, 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 is energized to generate 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 deenergized, 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.

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 8, 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 simultaneously and in opposite directions; 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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