A deceleration clutch device for washing machine, washing machine and control method thereof

Abstract

The present invention provides a deceleration clutch device of a washing machine, a washing machine and a control method thereof. The deceleration clutch device of the washing machine includes a clutch mechanism, the clutch mechanism includes a clutch sleeve, a fork assembly for reciprocating the clutch sleeve, and a fork driving device for driving the fork assembly to move, the fork driving device includes a driving component and a sliding component, the sliding component is connected to the fork assembly, the driving component drives the sliding component to slide up and down in the vertical direction to drive the fork assembly to reciprocate the clutch sleeve, and realizes the clutch switching of the washing machine. The deceleration clutch device of the present invention drives the sliding component to slide up and down in the vertical direction to drive the fork assembly to reciprocate the clutch sleeve through the driving component, and the various clutch switching states of the clutch sleeve can be controlled by controlling the rotation position of the driving component, so as to realize more diversified washing conditions, meet more washing needs, have better washing effects, and enhance the user experience.

Description

Technical Field

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

[0002] Washing machines, as a household appliance, have gradually become an indispensable part of people's lives, and fully automatic pulsator washing machines, as a major type of washing machine, are increasingly widely used. The working mode of existing fully automatic pulsator washing machines is generally that during washing and rinsing, the driving device drives the pulsator of the washing machine to rotate forward and reverse through a reduction clutch device, and during dehydration, the driving device drives the pulsator and the washing tub of the washing machine to rotate synchronously at high speed through a reduction clutch device.

[0003] However, with the rapid development of science and technology, the existing fully automatic pulsator washing machine's washing method that simply relies on the pulsator to stir the water flow has increasingly limited effect on improving the washing effect of clothes. Therefore, how to increase the washing diversity of the fully automatic pulsator washing machine to improve the washing effect has become a technical problem that needs to be solved urgently.

[0004] Some patents have proposed solutions to this problem. For example, the Chinese invention patent with application number: 02804912.8, entitled "A transmission mechanism for generating bidirectional rotation, a washing machine and method for generating bidirectional washing, and a related inner barrel and agitator", discloses a transmission mechanism for generating bidirectional drive suitable for use in a washing machine, comprising a power input end and two power output ends, wherein one power output end is connected to an agitator shaft (10) and causes the agitator shaft to rotate in a first direction; and the other power output end is connected to an inner barrel shaft (11) and causes the inner barrel shaft to rotate in a second direction opposite to the first direction. A washing machine for generating bidirectional washing and a washing method capable of generating bidirectional washing in a washing machine. An agitator and inner barrel for a washing machine. The patent discloses a transmission mechanism capable of generating bidirectional drive in a washing machine, and discloses the specific structure of the transmission mechanism in the specification. It can be seen from the contents of the specification and the drawings that the patent solves the problem of a single power drive mode in existing fully automatic pulsator washing machines to some extent, but the transmission mechanism disclosed in the patent has a complex structure, high difficulty in manufacturing and assembly, and high manufacturing cost.

[0005] Another example is the Chinese invention patent application with application number: 201310408108.X and title: Fully automatic washing machine. The invention discloses a fully automatic washing machine, including an outer barrel, an inner barrel, a pulsator and a driving device. The driving device includes at least two rotors and at least one stator, wherein one rotor is connected to the inner barrel shaft, and another rotor is connected to the pulsator shaft. The driving device is a variable frequency direct drive motor, wherein the rotor, stator, inner barrel shaft and pulsator shaft are coaxially arranged, the inner barrel shaft is hollow, and the pulsator shaft is arranged in the inner barrel shaft. When the washing machine washes, the pulsator and the inner barrel rotate in the same direction, or rotate in opposite directions, or one of the pulsator and the inner barrel rotates, and when dehydrating, the pulsator and the inner barrel rotate in the same direction and at the same speed. The washing machine described in the invention is connected to the inner barrel shaft and the pulsator shaft respectively through two rotors, and the inner barrel and the pulsator are driven to rotate respectively through the double rotors. This structure greatly reduces the weight, volume and cost of the driving system, and improves the transmission efficiency and stability.

[0006] From the above two published patent application documents, it can be seen that there are two main ideas for solving the water flow diversity of washing machines: Method 1, designing a deceleration clutch device that can output bidirectional power to achieve bidirectional washing in the washing process of the washing machine and enhance the water flow effect; Method 2, designing a driving motor with bidirectional power output to drive the impeller and the inner drum respectively to achieve bidirectional washing in the washing process of the washing machine and enhance the water flow effect. The above method 1 has the disadvantages of complex structure of the deceleration clutch device, difficult installation and complex control method, and method 2 has the disadvantage of high cost of the driving motor with bidirectional power output.

[0007] In view of this, how to increase the diversity of washing methods and switch between multiple washing methods to select the best washing method becomes a technical problem to be solved by this application. Summary of the invention

[0008] The first invention object of the present invention is to provide a deceleration clutch device that can realize a combination of multiple washing modes. Specifically, the following technical solutions are adopted:

[0009] A deceleration clutch device for a washing machine comprises a clutch mechanism, wherein the clutch mechanism comprises a clutch sleeve, a fork assembly for driving the clutch sleeve to reciprocate, and a fork driving device for driving the fork assembly to move, wherein the fork driving device comprises a driving component and a sliding component, wherein the sliding component is connected to the fork assembly, and the driving component drives the sliding component to slide up and down in a vertical direction to drive the fork assembly to drive the clutch sleeve to reciprocate, thereby realizing clutch switching of the washing machine.

[0010] Furthermore, the fork assembly comprises a fork and a fork bracket, the fork bracket is fixedly arranged, and the middle part of the fork is rotatably mounted on the fork bracket;

[0011] The sliding component includes a sliding member, the forked end of the shift fork is forked on the outer periphery of the clutch sleeve, the driving end of the shift fork is connected to the sliding member, and the driving member drives the sliding member to slide up and down along a fixed slideway, and the sliding member drives the shift fork to shift the clutch sleeve to reciprocate.

[0012] Furthermore, a slideway extending a certain length in the vertical direction is arranged on the housing of the driving component, and the sliding member is slidably arranged on the slideway. The driving component drives the sliding member to slide up and down in the vertical direction through a gear rack transmission mechanism.

[0013] Furthermore, the sliding member has an insertion port for inserting the driving end of the fork, and the sliding component also includes a buffer component, which is arranged between the insertion port and the driving end of the fork and is used for a buffer connection between the sliding member and the fork.

[0014] Furthermore, the buffer assembly includes a buffer spring and a buffer push rod, the buffer spring is arranged between the sliding member and the buffer push rod, and one end of the buffer push rod extends into the plug interface and abuts against the driving end of the shift fork.

[0015] Furthermore, the upper end of the slideway is closed and the lower end is open, the sliding member has a slide rail that slidably cooperates with the slideway, and the slide rail is installed into the slideway from the open end of the slideway;

[0016] Preferably, rollers are arranged between the slide rail and the slideway.

[0017] Furthermore, the gear rack transmission mechanism comprises a gear arranged on the output shaft of the clutch drive motor and a rack arranged on the vertical outer wall of the sliding member, and the gear and the rack are meshed for transmission.

[0018] Further, it comprises a speed reduction mechanism, the speed reduction mechanism comprises an input shaft, a brake wheel capable of bidirectional rotation, and an output shaft sleeve and an input shaft sleeve respectively fixedly connected to the brake wheel, the clutch mechanism comprises a fixed sleeve fixedly mounted on the outside of the input shaft sleeve and a torque transmission shaft sleeve fixedly mounted on the input shaft, the clutch sleeve is mounted on the input shaft sleeve and can reciprocate along the axis direction thereof, and the clutch sleeve is located between the fixed sleeve and the torque transmission shaft sleeve;

[0019] The driving component drives the sliding component to drive the shift fork assembly to shift the clutch sleeve to switch between a position where it is engaged with the torque transmission sleeve, a position where it is separated from the fixed sleeve and the torque transmission sleeve, and a position where it is engaged with the fixed sleeve.

[0020] The second invention object of the present invention is to provide a washing machine having the above-mentioned speed reduction clutch device, specifically, the following technical solutions are adopted:

[0021] A washing machine with the deceleration clutch device comprises an inner barrel and a pulsator arranged in the inner barrel, the deceleration mechanism comprises an output shaft and an output shaft sleeve, the output shaft is fixedly connected to the pulsator, and the output shaft sleeve is fixedly connected to the inner barrel. The third invention object of the present invention is to provide a control method for the washing machine, specifically, the following technical scheme is adopted:

[0022] A control method for the washing machine, the washing machine comprising a driving motor for driving a reduction clutch device, the control method comprising:

[0023] The driving component of the washing machine control fork driving device is in the initial stroke, the sliding component is at the uppermost end in the vertical direction, the sliding component drives the fork assembly to shift the clutch sleeve to engage with the torque transmission sleeve, the brake wheel is synchronously linked with the input shaft to control the action of the driving motor, and the reduction clutch device drives the washing machine impeller and the inner barrel to run at the same speed and in the same direction in the dehydration condition;

[0024] The driving component of the washing machine controls the shift fork driving device to drive the sliding component to slide downward in the vertical direction, and the sliding component drives the shift fork assembly to move the clutch sleeve to a position where it is separated from the torque transmission sleeve and the fixed sleeve, and the brake wheel is in a free rotation state, and the driving motor is controlled to move, and the reduction clutch device drives the washing machine impeller to reciprocate, and the inner barrel is in a free operation state, and the first washing condition is performed;

[0025] The driving component of the washing machine controls the fork driving device to drive the sliding component to slide to the lowermost end in the vertical direction. The sliding component drives the fork assembly to move the clutch sleeve and the fixed sleeve to engage and connect. The brake wheel is in a braking state, the driving motor is controlled to move, and the reduction clutch device drives the washing machine impeller to reciprocate to perform the second washing condition.

[0026] The speed reduction clutch device of the present invention drives the sliding component to slide up and down in the vertical direction through the driving component to drive the fork assembly to shift the clutch sleeve to reciprocate, thereby realizing the clutch switching of the washing machine. It has a simple structure, high position control accuracy and high reliability.

[0027] The deceleration clutch device of the present invention drives the sliding component to slide up and down in the vertical direction through the driving component, driving the fork assembly to shift the clutch sleeve to reciprocate. By controlling the rotation position of the driving component, the various clutch switching states of the clutch sleeve can be controlled, thereby realizing more diversified washing conditions, meeting more washing needs, having better washing effects, and improving the user experience.

[0028] Specifically, the driving component of the deceleration clutch device of the present invention has at least three rotation positions, and the driving sliding component has at least three sliding positions, so that the shift fork assembly has at least three movement positions, thereby realizing at least three clutch states of the clutch sleeve - the clutch sleeve is engaged with the torque transmission sleeve, separated from the fixed sleeve and the torque transmission sleeve, and engaged with the fixed sleeve; correspondingly, at least three washing conditions are provided: a dehydration condition is provided, and the washing tub and the impeller rotate at the same speed and in the same direction; a hand-rubbing washing condition can be provided, in which the washing tub rotates freely and the impeller rotates forward and backward; and an existing fully automatic washing condition is also provided, in which the washing tub is fixed and the impeller rotates forward and backward.

[0029] Therefore, the washing machine using the deceleration clutch device of the present invention can adopt multiple combined washing modes, multiple water flows, and cyclic cross-washing modes during the entire washing process, so as to make washing more complete, make clothes cleaner, avoid clothes entanglement, and improve the user experience of the washing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic structural diagram of a deceleration clutch device of a washing machine according to an embodiment of the present invention (in a dehydration working state);

[0031] Figure 2 A schematic structural diagram of a deceleration clutch device of a washing machine according to an embodiment of the present invention (hand-washing operation mode);

[0032] Figure 3 A schematic structural diagram of a deceleration clutch device of a washing machine according to an embodiment of the present invention (in a normal fully automatic washing working state);

[0033] Figure 4 Schematic diagram of the three-dimensional structure of the fork driving device according to the embodiment of the present invention Figure 1 ;

[0034] Figure 5 Schematic diagram of the three-dimensional structure of the fork driving device according to the embodiment of the present invention Figure 2 ;

[0035] Figure 6 A cross-sectional view of a shift fork driving device according to an embodiment of the present invention;

[0036] Figure 7 A schematic diagram of the three-dimensional structure of a sliding member according to an embodiment of the present invention;

[0037] Figure 8 A schematic diagram of the three-dimensional structure of a buffer assembly according to an embodiment of the present invention;

[0038] Fig. 9 A schematic diagram of the three-dimensional structure of a clutch drive motor according to an embodiment of the present invention.

[0039] Explanation of the numbers in the accompanying drawings: 1-output shaft 2-output shaft sleeve 3-upper end shell 4-brake rod 5-lower end shell 6-fork bracket 7-brake belt 8-fixing sleeve 9-clutch sleeve 10-torque transmission sleeve 11-input shaft 12-motor fastening nut 13-input sleeve 14-shift fork 15-shift fork driving device 16-clutch compression spring 17-fork connection end 18-driving end 19-driving component 20-roller 21-slideway 22-sliding member 23-gear 24-buffer push rod 25-rack 26-buffer spring 27-plug interface. DETAILED DESCRIPTION

[0040] The following describes in detail a deceleration clutch device of a washing machine, a washing machine and a control method thereof in conjunction with the accompanying drawings:

[0041] like Figure 1-Figure 8 As shown, this embodiment provides a deceleration clutch device for a washing machine, including a clutch mechanism, wherein the clutch mechanism includes a clutch sleeve 9, a fork assembly for driving the clutch sleeve 9 to reciprocate, and a fork driving device 15 for driving the fork assembly to move, wherein the fork driving device 15 includes a driving component 19 and a sliding component, wherein the sliding component is connected to the fork assembly, and the driving component 19 drives the sliding component to slide up and down in the vertical direction to drive the fork assembly to drive the clutch sleeve to reciprocate, thereby realizing the clutch switching of the washing machine.

[0042] The deceleration clutch device of this embodiment drives the sliding component to slide up and down in the vertical direction through the driving component, driving the fork assembly to shift the clutch sleeve to reciprocate, thereby realizing the clutch switching of the washing machine. It has a simple structure, high position control accuracy and high reliability.

[0043] Furthermore, the shift fork assembly described in this embodiment includes a shift fork 14 and a shift fork bracket 6, the shift fork bracket 6 is fixedly arranged, and the middle part of the shift fork 14 is rotatably mounted on the shift fork bracket 6; the sliding component includes a sliding member 22, the fork connection end 17 of the shift fork 14 is forked on the outer periphery of the clutch sleeve 9, and the driving end 18 of the shift fork 14 is connected to the sliding member 22, and the driving component 19 drives the sliding member 22 to slide up and down along the fixed slideway 21, and the sliding member 22 drives the shift fork 14 to shift the clutch sleeve 9 to reciprocate.

[0044] The sliding member 22 of this embodiment slides up and down along the slideway 21, so that the driving component 19 drives the sliding member 22 to slide along a fixed path, driving the shift fork 14 to shift the clutch sleeve 9 to reciprocate, thereby realizing clutch switching. Not only is the structure simple, but the clutch switching process is also relatively stable.

[0045] As an implementation mode of this embodiment, a slideway 21 extending a certain length in the vertical direction is arranged on the shell of the driving component 19, and the sliding member 22 is slidably arranged on the slideway 21. The driving component 19 drives the sliding member 22 to slide up and down in the vertical direction through a gear rack transmission mechanism.

[0046] Preferably, the driving component 19 is a clutch drive motor, and the rotation output of the clutch drive motor is converted into a linear output that drives the sliding member 22 to slide up and down in the vertical direction through a gear rack transmission mechanism. In addition, the gear rack transmission mechanism is easy to control the transmission stroke to achieve the corresponding clutch switching control, and the gear rack transmission mechanism has strong transmission stability, and the clutch switching process is more stable and reliable.

[0047] As an implementation mode of this embodiment, the sliding member 22 has an insertion port 27 for inserting the driving end 18 of the fork 14, and the sliding component also includes a buffer assembly, which is arranged between the insertion port 27 and the driving end 18 of the fork 14 and is used for a buffer connection between the sliding member 22 and the fork 14.

[0048] Specifically, the buffer assembly includes a buffer spring 26 and a buffer push rod 24 . The buffer spring 26 is disposed between the sliding member 22 and the buffer push rod 24 . One end of the buffer push rod 24 extends into the insertion port 27 to abut against the driving end 18 of the shift fork 14 .

[0049] The function of the buffer push rod 24 of this embodiment is as follows: when the clutch is switched to the normal fully automatic washing process, the sliding member 22 presses the driving end 18 of the fork 14 to move downward, and the fork-joint end 17 of the fork 14 moves upward to press the clutch sleeve 9 to move upward. The teeth of the clutch sleeve 9 and the teeth of the fixed sleeve 8 are just in contact and correspondence, but when there is no engagement, the fork-joint end 17 of the fork 14 is still moving upward, and the fork-joint end 17 of the fork 14 will be subject to relatively large resistance, and the buffer push rod 24 moves upward to reduce the resistance encountered by the buffer fork 14.

[0050] As an implementation of this embodiment, the upper end of the slideway 21 is closed and the lower end is open, and the sliding member 22 has a slide rail that slidably cooperates with the slideway 21, and the slide rail is installed in the slideway from the open end of the slideway 21;

[0051] Preferably, a roller 20 is provided between the slide rail and the slideway 21 to improve the smoothness of sliding between the slide rail and the slideway.

[0052] As an implementation of this embodiment, the gear rack transmission mechanism includes a gear 23 arranged on the output shaft of the driving component 19 and a rack 25 arranged on the vertical outer wall of the sliding member 22, and the gear 23 is meshed with the rack 25 for transmission.

[0053] Preferably, the rack 25 is fixedly mounted on the vertical outer wall of the sliding member 22 , or a plurality of meshing teeth are provided on the vertical outer wall of the sliding member 22 along the length direction to form the rack 25 .

[0054] The deceleration clutch device of the washing machine of the present embodiment comprises a deceleration mechanism, which comprises an input shaft 11, a brake wheel which can rotate in both directions, and an output sleeve 2 and an input sleeve 13 which are respectively fixedly connected to the brake wheel. The clutch mechanism comprises a fixed sleeve 8 which is fixedly sleeved on the outside of the input sleeve 13 and a torque transmission sleeve 10 which is fixedly sleeved on the input shaft 11. The clutch sleeve 9 is sleeved on the input sleeve 13 and can reciprocate along its axial direction. The clutch sleeve 9 is located between the fixed sleeve 8 and the torque transmission sleeve 10. The driving component 19 drives the sliding component to drive the fork assembly to shift the clutch sleeve 9 between a position in which it is engaged with the torque transmission sleeve 10, a position in which it is separated from both the fixed sleeve 8 and the torque transmission sleeve 10, and a position in which it is engaged with the fixed sleeve 8.

[0055] The deceleration clutch device of the present invention can realize a variety of clutch switching states of the clutch sleeve, realize more diverse washing conditions, meet more washing needs, have better washing effects, and enhance the user experience.

[0056] As an implementation mode of this embodiment, the driving component 19 of the deceleration clutch device of this embodiment has at least three rotation positions, and the driving sliding component has at least three sliding positions, so that the shift fork assembly has at least three movement positions, thereby realizing at least three clutch states of the clutch sleeve 9 - the clutch sleeve 9 is engaged with the torque transmission sleeve 10, separated from the fixed sleeve 8 and the torque transmission sleeve 10, and engaged with the fixed sleeve 8; correspondingly, at least three washing conditions are provided: a dehydration condition is provided, and the washing tub and the impeller rotate at the same speed and in the same direction; a hand-rubbing washing condition can be provided, in which the washing tub rotates freely and the impeller rotates forward and backward; an existing fully automatic washing condition is also provided, in which the washing tub is fixed and the impeller rotates forward and backward.

[0057] Therefore, the washing machine using the deceleration clutch device of this embodiment can adopt multiple combined washing modes, multiple water flows, and cyclic cross-washing modes during the entire washing process, so as to make washing more complete, make clothes cleaner, avoid clothes entanglement, and improve the user experience of the washing machine.

[0058] In addition, the brake belt of the existing deceleration clutch device can only brake the brake wheel in one direction, and the other direction of the brake wheel is limited by a one-way bearing. The brake wheel of this embodiment can rotate in both directions. At the same time, in order to ensure the realization of the washing method of single-wave wheel rotation, the brake wheel needs to be braked in both directions. Therefore, the deceleration clutch device of this embodiment is based on the structural characteristics of the reciprocating motion of the clutch sleeve 9 of the clutch mechanism. The input shaft sleeve 13 is locked by a fixed sleeve 8 that is fixedly arranged and can engage with the clutch sleeve 9. At the same time, the brake wheel is also braked.

[0059] The deceleration mechanism described in this embodiment includes a housing with an accommodating chamber inside, the brake wheel is arranged in the accommodating chamber of the housing, and the driving component 19 is fixed on the housing.

[0060] Furthermore, the fork bracket 6 described in this embodiment includes a bracket fixed on the lower end surface of the housing and a fork seat extending and protruding from the bracket, and the middle part of the fork 14 is rotatably mounted on the fork seat.

[0061] The housing of this embodiment includes an upper end shell 3 and a lower end shell 5 fixedly connected to the upper end shell 3, and the fork bracket 6 and the driving component 19 are fixedly mounted on the lower end shell 5. In addition, the fixing sleeve 8 of this embodiment is also fixedly mounted on the lower end shell 5.

[0062] The driving component 19 of this embodiment can also be fixed to the bottom of the outer barrel of the washing machine.

[0063] As an implementation of this embodiment, the fork bracket 14 and the fixing sleeve 8 can be integrally formed.

[0064] This embodiment also provides a washing machine with the deceleration clutch device, including an inner barrel and a pulsator arranged in the inner barrel, the deceleration mechanism includes an output shaft 1 and an output shaft sleeve 2, the output shaft 1 is fixedly connected to the pulsator, and the output shaft sleeve 2 is fixedly connected to the inner barrel.

[0065] Furthermore, the washing machine of this embodiment also includes an outer barrel having a drain outlet, a drain valve for controlling the opening and closing of the drain outlet and a drain motor for pulling the drain valve are installed at the bottom of the outer barrel, and the deceleration clutch device of the washing machine includes a brake wheel, a brake belt 7 is arranged on the outer periphery of the brake wheel, one end of the brake belt 7 is connected to a brake rod 4, a brake rod torsion spring is arranged on the brake rod 4, and the drain motor is also connected to the brake rod 7.

[0066] The drainage motor of this embodiment has two strokes: when the drainage motor is pulled into the first stroke, the brake rod 4 is pulled open, the brake belt 7 is loosened, the brake wheel is not braked, and the drainage valve does not operate (no drainage); when the drainage motor is pulled into the second stroke, the brake rod 4 and the drainage valve are both pulled open, the brake wheel is not braked, and the drainage valve drains water.

[0067] The drain valve of this embodiment has a drain valve pull rod, and the drain motor is connected to the drain valve pull rod. The drain valve pull rod and the drain motor are connected via a tension spring. During the first traction stroke of the drain motor, the tension spring is extended, the drain valve pull rod does not move, and the drain valve remains in a closed state.

[0068] In order to achieve the fixed setting of the fixed sleeve 8, the fixed sleeve 8 described in this embodiment includes an annular body fixed to the lower end shell 5, and a washing meshing tooth is arranged on the annular body. An upper meshing tooth is arranged on one end of the clutch sleeve 9 close to the fixed sleeve 8, and the upper meshing tooth of the clutch sleeve 9 meshes with the washing meshing tooth of the fixed sleeve 8 to lock the input shaft sleeve 13.

[0069] In this embodiment, the outer circumference of the input shaft 11 is provided with external splines, and the torque transmission sleeve 10 has internal splines. The internal splines of the torque transmission sleeve 10 are engaged with the external splines of the input shaft 11, and the torque transmission sleeve 10 rotates synchronously with the input shaft 11.

[0070] In this embodiment, a motor locking nut 12 for fixedly connecting the input shaft to the rotor of the driving motor is sleeved on the input shaft 11, and a shock absorbing pad is provided on one end surface of the torque transmission sleeve 10 close to the driving motor.

[0071] The brake wheel of this embodiment includes a brake wheel body with an open accommodating cavity and a brake wheel shaft fixedly connected to the open end of the brake body. A bidirectional rotating bearing is arranged between the brake wheel shaft and the housing, so that the brake wheel of this embodiment can rotate bidirectionally.

[0072] In this embodiment, a clutch compression spring 16 for elastically resetting and engaging the clutch sleeve 9 is sleeved on the input shaft sleeve 13 , and the clutch compression spring 16 is arranged between the clutch sleeve 9 and the bottom end surface of the lower end shell 5 .

[0073] This embodiment further provides a control method for a washing machine, wherein the washing machine includes a driving motor for driving a reduction clutch device, and the control method includes:

[0074] The driving component of the washing machine control fork drive device is in the initial stroke, the sliding component is located at the uppermost end in the vertical direction, the sliding component drives the fork assembly to shift the clutch sleeve to engage and connect with the torque transmission shaft sleeve, the brake wheel is synchronously linked with the input shaft to control the movement of the drive motor, and the reduction clutch device drives the washing machine impeller and the inner drum to run at the same speed and in the same direction in the dehydration condition.

[0075] At this time, the drainage motor opens the second stroke, and the brake rod 4 and the drainage valve are both opened.

[0076] The driving component of the washing machine controls the fork driving device to drive the sliding component to slide downward in the vertical direction. The sliding component drives the fork assembly to move the clutch sleeve to a position where it is separated from the torque transmission sleeve and the fixed sleeve. The brake wheel is in a free rotation state, and the driving motor is controlled to operate. The reduction clutch device drives the washing machine impeller to reciprocate, and the inner drum is in a free operation state to perform the first washing condition.

[0077] At this time, the drainage motor opens the first stroke, the brake lever is pulled open, and the drainage valve does not move (no drainage).

[0078] The driving component of the washing machine controls the fork driving device to drive the sliding component to slide to the lowermost end in the vertical direction. The sliding component drives the fork assembly to move the clutch sleeve and the fixed sleeve to engage and connect. The brake wheel is in a braking state, the driving motor is controlled to move, and the reduction clutch device drives the washing machine impeller to reciprocate to perform the second washing condition.

[0079] At this time, the drainage motor is not pulled open, and the brake lever and the drainage valve do not move (no drainage).

[0080] In the existing fully automatic washing machine, the brake wheel is in a braking state during washing, and the deceleration clutch device can only drive the pulsator to rotate. During dehydration, although the brake wheel can rotate, it can only maintain unidirectional rotation due to the limitation of the one-way bearing. This greatly limits the inner drum from rotating during the washing process, or even if it rotates, its rotation method is relatively single, which is not conducive to forming a variety of washing methods.

[0081] The brake wheel of the deceleration clutch device of this embodiment can rotate in both directions, thereby driving the inner drum to have more rotation modes, and theoretically can provide more washing modes: by controlling the clutch driving device to drive the clutch sleeve to engage and fix with the fixed sleeve, the input shaft sleeve is locked, and the brake wheel is also locked, and the deceleration clutch device only drives the impeller to rotate in a washing mode; by controlling the clutch driving device to drive the clutch sleeve to separate from the fixed sleeve and not engage and fix with the torque transmission sleeve, the input shaft sleeve is unlocked, and the brake wheel can rotate freely in both directions, and the deceleration clutch device only drives the impeller to rotate and the inner drum rotates freely in a washing mode.

[0082] Therefore, the washing machine of this embodiment can provide at least three washing conditions: it can provide the existing fully automatic washing condition, in which the washing tub is fixed and the impeller rotates forward and backward; it can also provide a hand-rubbing washing condition, in which the washing tub rotates freely and the impeller rotates forward and backward; and it can provide a dehydration condition, in which the washing tub and the impeller rotate at the same speed and direction. During the entire washing process of the washing machine, a variety of combined washing methods, multiple water flows, and cyclic cross-washing methods can be used to make the washing more complete, the clothes cleaner, avoid clothes entanglement, and improve the user experience.

[0083] 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 washing machine, characterized in that: The clutch mechanism includes a clutch sleeve, a fork assembly for driving the clutch sleeve to reciprocate, and a fork driving device for driving the fork assembly to move. The fork driving device includes a driving component and a sliding component. The sliding component is connected to the fork assembly. The driving component drives the sliding component to slide up and down in the vertical direction to drive the fork assembly to drive the clutch sleeve to reciprocate, thereby realizing the clutch switching of the washing machine. The housing of the driving component is provided with a slideway extending a certain length in the vertical direction, a sliding member is slidably provided on the slideway, and the driving component drives the sliding member to slide up and down in the vertical direction through a gear rack transmission mechanism; The deceleration mechanism comprises an input shaft, a brake wheel capable of bidirectional rotation, and an output sleeve and an input sleeve respectively fixedly connected to the brake wheel; the clutch mechanism comprises a fixed sleeve mounted on the outside of the input sleeve and a torque transmission sleeve mounted on the input shaft; the clutch sleeve is mounted on the input sleeve and can reciprocate along its axis; the clutch sleeve is located between the fixed sleeve and the torque transmission sleeve; The driving component drives the sliding component to drive the shift fork assembly to shift the clutch sleeve to switch between a position where it is engaged with the torque transmission sleeve, a position where it is separated from the fixed sleeve and the torque transmission sleeve, and a position where it is engaged with the fixed sleeve.

2. The speed reduction clutch device of a washing machine according to claim 1, characterized in that: The shift fork assembly comprises a shift fork and a shift fork bracket, the shift fork bracket is fixedly arranged, and the middle part of the shift fork is rotatably mounted on the shift fork bracket; The sliding component includes a sliding member, the forked end of the shift fork is forked on the outer periphery of the clutch sleeve, the driving end of the shift fork is connected to the sliding member, and the driving member drives the sliding member to slide up and down along a fixed slideway, and the sliding member drives the shift fork to shift the clutch sleeve to reciprocate.

3. The speed reduction clutch device of a washing machine according to claim 1 or 2, characterized in that: The sliding member has an insertion port for inserting the driving end of the shift fork, and the sliding member also includes a buffer component, which is arranged between the insertion port and the driving end of the shift fork and is used for a buffer connection between the sliding member and the shift fork.

4. The speed reduction clutch device of a washing machine according to claim 3, characterized in that: The buffer assembly comprises a buffer spring and a buffer push rod. The buffer spring is arranged between the sliding member and the buffer push rod. One end of the buffer push rod extends into the plug interface and abuts against the driving end of the shift fork.

5. The speed reduction clutch device of a washing machine according to claim 1, characterized in that: The upper end of the slide is closed and the lower end is open. The sliding member has a slide rail that is slidably matched with the slide. The slide rail is installed in the slide through the open end of the slide.

6. The speed reduction clutch device of a washing machine according to claim 5, characterized in that: Rollers are arranged between the slide rail and the slideway.

7. The speed reduction clutch device of a washing machine according to claim 1 or 5, characterized in that: The gear rack transmission mechanism comprises a gear arranged on the output shaft of the clutch drive motor and a rack arranged on the vertical outer wall of the sliding member, and the gear and the rack are meshed for transmission.

8. A washing machine having a speed reduction clutch device as claimed in any one of claims 1 to 7, characterized in that: It comprises an inner barrel and a pulsator arranged in the inner barrel, the deceleration mechanism comprises an output shaft and an output shaft sleeve, the output shaft is fixedly connected to the pulsator, and the output shaft sleeve is fixedly connected to the inner barrel.

9. A method for controlling a washing machine as claimed in claim 8, characterized in that: The washing machine includes a driving motor for driving a speed reduction clutch device, and the control method includes: The driving component of the washing machine control fork driving device is in the initial stroke, the sliding component is at the uppermost end in the vertical direction, the sliding component drives the fork assembly to shift the clutch sleeve to engage with the torque transmission sleeve, the brake wheel is synchronously linked with the input shaft to control the action of the driving motor, and the reduction clutch device drives the washing machine impeller and the inner barrel to run at the same speed and in the same direction in the dehydration condition; The driving component of the washing machine controls the shift fork driving device to drive the sliding component to slide downward in the vertical direction, and the sliding component drives the shift fork assembly to move the clutch sleeve to a position where it is separated from the torque transmission sleeve and the fixed sleeve, and the brake wheel is in a free rotation state, and the driving motor is controlled to move, and the reduction clutch device drives the washing machine impeller to reciprocate, and the inner barrel is in a free operation state, and the first washing condition is performed; The driving component of the washing machine controls the fork driving device to drive the sliding component to slide to the lowermost end in the vertical direction. The sliding component drives the fork assembly to move the clutch sleeve and the fixed sleeve to engage and connect. The brake wheel is in a braking state, the driving motor is controlled to move, and the reduction clutch device drives the washing machine impeller to reciprocate to perform the second washing condition.

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