A water-saving washing machine speed reduction clutch and a washing machine

Abstract

The present invention provides a water-saving washing machine speed reduction clutch and a washing machine. The speed reduction clutch includes an input end and an output end. The output end includes a pulsator shaft connected to the pulsator of the washing machine, a dehydration shaft disposed outside the pulsator shaft and connected to the flange of the water-saving washing tub of the washing machine. The output end further includes a drain shaft, and the drain shaft is connected to a drain tray. The drain tray can open or close a drain valve. The output end is connected to the input end through a gear train. The input end includes an input shaft, a clutch shaft is disposed outside the input shaft, and a lower clutch sleeve is disposed between the input shaft and the clutch shaft. The lower clutch sleeve is configured to engage or disengage the input shaft and the clutch shaft. The present invention discloses a different structural manner for flexibly converting the washing, draining, and dehydration processes.

Description

Technical Field

[0001] The present invention relates to the technical field of water-saving washing machines, and particularly relates to a water-saving washing machine speed reduction clutch and a washing machine. Background Art

[0002] After the current water-saving washing machine finishes washing, it is necessary to drain the sewage in the washing tub. However, after washing, the clothes are entangled with the agitator and the washing tub. When draining water, it is necessary to open the drain tray at the bottom of the washing tub, and the drain tray is controlled to open by a drain shaft connected thereto. Since the input part needs to control the rotation of the drain shaft together with the agitator shaft connected to the agitator when manipulating the drain shaft, the required torque is relatively large, and the resistance of the agitator shaft to the agitator is very large. Moreover, the power for controlling the drain shaft and the agitator shaft is directly transmitted by the input end, and the power cannot be amplified by the speed reduction gear train, thus resulting in inability to drain water. It is necessary to take out the clothes first, which is not only troublesome, time-consuming and laborious, but also cannot achieve automatic control. This is the technical problem that we urgently need to solve at present. Summary of the Invention

[0003] In view of the existing technical problems, the present invention provides a water-saving washing machine speed reduction clutch and a washing machine.

[0004] The technical solution of the present invention is realized as follows:

[0005] A water-saving washing machine speed reduction clutch includes an input end and an output end. The output end includes an agitator shaft connected to the agitator of the washing machine, a dehydration shaft disposed outside the agitator shaft and connected to the flange of the water-saving washing tub of the washing machine, and the output end further includes a drain shaft. The drain shaft is connected to a drain tray, and the drain tray can open or close a drain valve. The output end is connected to the input end through a gear train. The input end includes an input shaft, a clutch shaft is disposed outside the input shaft, and a lower clutch sleeve is disposed between the input shaft and the clutch shaft. The lower clutch sleeve is configured to engage or disengage the input shaft and the clutch shaft.

[0006] Preferably, the drain shaft is disposed between the agitator shaft and the dehydration shaft and can rotate movably. The lower ends of the drain shaft, the agitator shaft, and the dehydration shaft of the output end are connected to the gear train. The output end engages or disengages the dehydration shaft, the drain shaft, and the agitator shaft under the transmission of the gear train.

[0007] Preferably, the drain shaft is disposed between the agitator shaft and the dehydration shaft and can rotate movably. An upper clutch device is disposed between the drain shaft and the dehydration shaft. The upper clutch device is configured to engage or disengage the dehydration shaft, the drain shaft, and the agitator shaft.

[0008] Preferably, the drain shaft is disposed on the side of the dehydration shaft away from the agitator shaft, and an upper clutch device is disposed between the drain shaft and the dehydration shaft. The upper clutch device is configured to engage or disengage the drain shaft and the dehydration shaft.

[0009] Preferably, the input end further includes an intermediate shaft disposed between the input shaft and the clutch shaft, and the lower clutch sleeve is configured to engage or disengage the input shaft, the intermediate shaft, and the clutch shaft.

[0010] The present invention also discloses a washing machine including the water-saving washing machine speed reducer clutch described above. During the washing operation, the clutch shaft at the input end and the dewatering shaft at the output end are engaged with the washing machine clutch housing under the action of the clutch device and remain stationary, while the input shaft is completely separated from the clutch device and is in a free state. Under the action of the input power, it rotates bidirectionally, and the power is transmitted through the gear train to the agitator shaft to wash the clothes. At this time, it is in the washing operation mode, and the clutch device includes a lower clutch sleeve and / or an upper clutch device.

[0011] Preferably, during the draining operation, under the action of an external force, the clutch shaft is engaged with the housing of the washing machine clutch and remains stationary, and the drain shaft is in a free state under the connection action of the gear train. The drain shaft can rotate by an angle under the power transmission of the gear train to rotate the drain tray and open the drain valve; or the drain shaft is engaged with the agitator shaft as a whole under the action of the upper clutch device, and the drain shaft can rotate by an angle under the power transmission of the agitator shaft to rotate the drain tray and open the drain valve.

[0012] Preferably, during the dewatering operation, the drain shaft, the agitator shaft, and the dewatering shaft at the output end can rotate together with the input shaft and the clutch shaft at the input end.

[0013] Furthermore, an intermediate shaft is disposed between the input shaft and the clutch shaft at the input end. During the dewatering operation, the intermediate shaft, the input shaft, and the clutch shaft are engaged as a whole under the action of the lower clutch sleeve, and the drain shaft, the agitator shaft, the dewatering shaft, the input shaft, the clutch shaft, and the intermediate shaft can rotate at a high speed together.

[0014] Preferably, after the dewatering is completed, the drain tray returns to its original position, the drain valve is closed, and the drain hole is closed.

[0015] Compared with the prior art, the advantages and beneficial effects of the present invention are as follows:

[0016] 1. By adopting a three-axis input and three-axis output, a different structural method is obtained to flexibly convert the washing, draining, and dewatering processes.

[0017] 2. The present invention eliminates the resistance of the clothes on the agitator by providing an upper clutch sleeve on the drain shaft and a lower clutch sleeve on the clutch shaft and the intermediate shaft, and cooperates with the operation in the upper, middle, and lower gears, and easily opens the drain tray connected to the drain shaft to drain water;

[0018] 3. The product of the present invention can utilize the speed reduction of the speed reduction gear train to increase the rotational torque, greatly improving the driving force on the drainage shaft, significantly enhancing the rotational flexibility of the drainage tray, and greatly extending the service life of the water-saving washing machine.

[0019] 4. Since the product of the present invention realizes the automatic rotational drainage of the drainage tray of the water-saving washing machine, it can automate the operation of the washing machine and facilitate control.

[0020] 5. Adopting the technical solution of the present invention reduces the abnormal noise during the conversion of the washing, drainage, and dehydration processes, and improves the service life of the washing machine.

[0021] 6. Through the technical solution of the up-and-down movement of the clutch wheel on the drainage shaft, the washing tub combined with the dehydration shaft is kept stationary during drainage. Under the action of the downward movement of the clutch wheel, the drainage shaft is combined with the agitator shaft and rotates integrally to open the drainage tray connected to the drainage shaft and empty the water in the washing tub connected to the dehydration shaft.

[0022] 7. Through the technical solution of setting a clutch wheel at the output end of the speed reduction gear train, utilizing the speed reduction of the speed reduction gear train to increase the rotational torque, the driving force on the drainage shaft can be greatly improved, the rotational flexibility of the drainage tray can be significantly enhanced, and the service life of the water-saving washing machine can be greatly extended.

[0023] 8. Through the technical solution of driving the agitator shaft, drainage shaft, and dehydration shaft by the speed reduction of the gear train to obtain the required power and rotational angle, and timely performing washing, drainage, and dehydration, and with the cooperation of the clutch sleeve at the input end, rapid and free conversion between the three working conditions can be carried out.

[0024] 9. Through the technical solution of driving the agitator shaft, drainage shaft, and dehydration shaft by the speed reduction of the gear train, the abnormal noise during the conversion of the washing, drainage, and dehydration processes is reduced. Utilizing the speed reduction of the gear train to increase the torque obtained on the drainage shaft makes it easier to open the drainage tray for drainage, and improves the service life of the washing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0026] Figure 1 It is a schematic diagram of the principle structure of a three-axis input and three-axis output washing machine speed reduction clutch in an embodiment of the present invention;

[0027] Figure 2 It is a schematic diagram of the principle structure of a dual clutch with three-axis input and three-axis output in an embodiment of the present invention;

[0028] Figure 3 is Figure 2 Schematic diagram of the dual-clutch perspective structure with three-axis input and three-axis output in

[0029] Figure 4 Schematic diagram of the principle structure of the increased clutch with three-axis output in the embodiment of the present invention;

[0030] Figure 5 is Figure 4 Schematic diagram of the three-dimensional structure with the front side of the clutch wheel facing up in

[0031] Figure 6 is Figure 4 Schematic diagram of the three-dimensional structure with the bottom side of the clutch wheel facing up in

[0032] Figure 7 Schematic diagram of the sectional view of the clutch wheel;

[0033] Figure 8 Schematic diagram of the perspective structure of the clutch wheel in the upper position in the embodiment of the present invention;

[0034] Figure 9 Schematic diagram of the perspective structure of the clutch wheel in the middle position in the embodiment of the present invention;

[0035] Figure 10 Schematic diagram of the perspective structure of the clutch wheel in the lower position in the embodiment of the present invention;

[0036] Figure 11 Schematic diagram of the structure with three-axis input of the lower clutch device when there is a clutch wheel or an upper clutch sleeve in the embodiment of the present invention;

[0037] Figure 12 Schematic diagram of the principle structure of the three-axis output dual-clutch of the water-saving washing machine in the embodiment of the present invention;

[0038] Figure 13 Schematic diagram of the perspective structure of the three-axis output dual-clutch in the embodiment of the present invention;

[0039] Figure 14 Schematic diagram of the principle structure of the dual-clutch with three-axis input and three-axis output in the embodiment of the present invention;

[0040] Figure 15 Schematic diagram of the perspective structure of the dual-clutch with three-axis input and three-axis output in the embodiment of the present invention;

[0041] Figure 16 Schematic diagram of the sectional view of the left washing and right draining state of the three-axis input single-clutch device of the water-saving washing machine in the embodiment of the present invention;

[0042] Figure 17 Schematic diagram of the sectional view of the left washing and right dehydration state of the three-axis input single-clutch device of the water-saving washing machine in the embodiment of the present invention;

[0043] Figure 18 Schematic diagram of the single-clutch principle structure with three-axis input and three-axis output for the second water-saving washing machine in the embodiment of the present invention;

[0044] Figure 19 For Figure 18 perspective structure diagram;

[0045] Figure 20 Schematic diagram of the single-clutch principle structure with three-axis input and three-axis output for the third water-saving washing machine in the embodiment of the present invention;

[0046] Figure 21 For Figure 20 perspective structure diagram;

[0047] Figure 22 Schematic diagram of the inner clutch sleeve structure of the lower clutch sleeve in the three-axis input of the embodiment of the present invention;

[0048] Figure 23 Schematic diagram of the outer clutch sleeve structure of the lower clutch sleeve in the three-axis input of the embodiment of the present invention;

[0049] Figure 24 Schematic diagram of the washing state structure of the lower clutch sleeve in the three-axis input of the embodiment of the present invention;

[0050] Figure 25 Schematic diagram of the dehydration state structure of the lower clutch sleeve in the three-axis input of the embodiment of the present invention;

[0051] Figure 26 Schematic diagram of the structure of the fixed sleeve in the three-axis input of the embodiment of the present invention;

[0052] Figure 27 Schematic diagram of the structure of the movable sleeve in the three-axis input of the embodiment of the present invention;

[0053] Figure 28 Schematic diagram of the position structure during the working process of the lower clutch sleeve washing machine with three-axis input in the embodiment of the present invention;

[0054] Among them: input shaft 1; clutch shaft 2; brake wheel 3; dehydration shaft 4; upper meshing tooth groove 401; drainage shaft 5; chute 501; wave wheel shaft 6; lower meshing tooth groove 601; drainage tray 7; flange 8; housing 9; upper clutch sleeve 10; planet carrier 11; upper planet carrier 1101; lower planet carrier 1102; internal gear ring 12; upper internal gear ring 1201; lower internal gear ring 1202; lower clutch sleeve 13; internal clutch sleeve 1301; third spline C1; fourth meshing tooth A1; fifth meshing tooth A2; small compression spring 1302; external clutch sleeve 1303; fourth spline D1; sixth meshing tooth B1; seventh meshing tooth B2; large compression spring 1304; notch meshing pair 14; intermediate shaft 15; fixed sleeve 16; second meshing tooth B2'; movable sleeve 17; third meshing tooth A1'; a and b represent the root horizontal line and the tip horizontal line of the second meshing tooth B2' on the fixed sleeve 16; c and d represent the tip horizontal line and the root horizontal line of the third meshing tooth A1' of the movable sleeve 17; reduction gear train 18; first elastic body 19; planetary gear 20; input end gear 21; notch 22; clutch wheel 23; lower meshing tooth 1001; upper meshing tooth 1002; sliding ring 1003;; first bearing 24; sector meshing pair 25; second elastic body 26; gear train 27; first clutch sleeve 28; second clutch sleeve 29; third clutch sleeve 30; spring 31; lower clutch sleeve E; middle clutch sleeve G; upper clutch sleeve F. Detailed implementation manners

[0055] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0056] It should be noted that the terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms of "a", "the" and "said" used in the present invention and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0057] All directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0058] In addition, the descriptions involving "first", "second", etc. in the present invention are for descriptive purposes only, and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0059] Embodiment 1. The present invention discloses a water-saving washing machine speed reduction clutch and a washing machine. The speed reduction clutch includes an input end and an output end. The output end includes a pulley shaft 6 connected to the washing machine pulley, a dehydration shaft 4 disposed outside the pulley shaft 6 and connected to the flange 8 of the water-saving washing barrel of the washing machine. The output end further includes a drain shaft 5, and the drain shaft 5 is connected to a drain tray 7. The drain tray 7 can open or close a drain valve, and the drain valve is communicated with the drainage structure of the washing machine. The output end is connected to the input end through a gear train 27. The input end includes an input shaft 1. A clutch shaft 2 is disposed outside the input shaft 1, and a lower clutch sleeve 13 is disposed between the input shaft 1 and the clutch shaft 2. The lower clutch sleeve 13 is configured to engage or disengage the input shaft 1 and the clutch shaft 2.

[0060] As some embodiments of the present invention, the drain shaft 5 is disposed between the pulley shaft 6 and the dehydration shaft 4 and can rotate movably. The lower ends of the drain shaft 5, the pulley shaft 6, and the dehydration shaft 4 at the output end are connected to the gear train 27. Under the driving action of the gear train 27 at the output end, the dehydration shaft 4, the drain shaft 5, and the pulley shaft 6 are engaged or disengaged.

[0061] As some embodiments of the present invention, the drain shaft 5 is disposed between the pulley shaft 6 and the dehydration shaft 4 and can rotate movably. An upper clutch device is provided between the drain shaft 5 and the dehydration shaft 4. The upper clutch device is configured to engage or disengage the dehydration shaft 4, the drain shaft 5, and the pulley shaft 6.

[0062] As some other embodiments of the present invention, the drain shaft 5 is disposed on the side of the dehydration shaft 4 away from the pulley shaft 6. An upper clutch sleeve 10 is disposed between the drain shaft 5 and the dehydration shaft 4. The upper clutch sleeve 10 is configured to engage or disengage the drain shaft 5 and the dehydration shaft 4.

[0063] As some embodiments of the present invention, the output end further includes an intermediate shaft 15. The intermediate shaft 15 is disposed between the input shaft 1 and the clutch shaft 2. The lower clutch sleeve 13 is configured to engage or disengage the input shaft 1, the intermediate shaft 15, and the clutch shaft 2.

[0064] In the washing condition, the clutch device is in the upshift position. Under the action of the clutch device, the clutch shaft 2 at the input end and the dewatering shaft 4 at the output end are clamped with the washing machine clutch housing 9 and remain stationary. The input shaft 1 is completely separated from the clutch device and is in a free state. It rotates bidirectionally under the action of the input power, and the power is transmitted through the gear train 27 to the agitator shaft 6 to wash the clothes. At this time, it is in the washing condition. The clutch device includes a lower clutch sleeve 13 and / or an upper clutch device.

[0065] In the draining condition, under the action of an external force, the clutch shaft 2 of the clutch device is clamped with the housing of the washing machine clutch and remains stationary. The drain shaft 5 is in a free state under the connection action of the gear train 27. The drain shaft 5 can rotate by an angle under the power transmission of the gear train 27 to rotate the drain disk 7 and open the drain valve; or the drain shaft 5 is meshed with the agitator shaft 6 as a whole under the action of the upper clutch device, and the drain shaft can rotate by an angle under the power transmission of the agitator shaft 6 to rotate the drain disk 7 to open the drain valve.

[0066] In the dewatering condition, the drain shaft 5, the agitator shaft 6, and the dewatering shaft 4 at the output end can rotate integrally with the input shaft 1 and the clutch shaft 2 at the input end to achieve dewatering.

[0067] When an intermediate shaft 15 is provided between the input shaft 1 and the clutch shaft 2 at the input end, in the dewatering condition, the intermediate shaft 15, the input shaft 1, and the clutch shaft 2 are meshed as a whole under the action of the lower clutch sleeve 13, and the drain shaft 5, the agitator shaft 6, the dewatering shaft 4, the input shaft 1, the clutch shaft 2, and the intermediate shaft 15 can rotate at a high speed integrally to achieve dewatering.

[0068] After the dewatering is completed, the drain disk 7 returns to its original position, the drain valve is closed, and the drain hole is closed.

[0069] The output end of the water-saving washing machine described in the present invention includes a drain shaft 5, an agitator shaft 6, and a dewatering shaft 4, and the input end includes two shafts, namely an input shaft 1 and a clutch shaft 2, to achieve two-shaft input; or the input end includes three shafts, namely an input shaft 1, a clutch shaft 2, and an intermediate shaft 15, to achieve three-shaft input. A lower clutch sleeve 13 is provided at the input end, and the working condition of the washing machine is adjusted through a single clutch device under the action of the gear train 28; or an upper clutch device is further provided at the output end, and the washing machine realizes dual-clutch control under the action of the lower clutch sleeve 13 and the upper clutch device to adjust the working condition of the washing machine.

[0070] Example 2, in combination with Figure 1, a three-axis input and three-axis output washing machine reduction clutch is disclosed, which includes an input shaft 1 for transmitting power and a pulsator shaft 6 for outputting power after being transmitted through a reduction power transmission component. The outer peripheries of the input shaft 1 and the pulsator shaft 6 are provided with a clutch shaft and a dewatering shaft for flexibly converting washing and dewatering. Among them, the outer periphery of the input shaft 1 is successively provided with a rotatable intermediate shaft 15 and a clutch shaft 2 from the inside to the outside, and the outer periphery of the pulsator shaft 6 is successively provided with a rotatable drain shaft 5 and a dewatering shaft 4 from the inside to the outside; the reduction power transmission component includes an input shaft gear 21 arranged at the top of the input shaft, an internal gear ring 12 placed around the input shaft gear 21, and a planetary gear 20 placed between the input shaft gear 21 and the internal gear ring 12 and meshing with the input shaft gear 21 on the inner side and the internal gear ring 12 on the outer side. The planetary gear 20 is rotatably installed on a planetary carrier 11; the planetary carrier 11 is connected to the pulsator shaft 6, and the internal gear ring 12 is connected to the drain shaft 5; the clutch position provided on the clutch shaft is located at the intermediate shaft 15; bearings for supporting lubrication and rotation are provided between the input shaft 1, the intermediate shaft 15 and the clutch shaft 2 in pairs; bearings for supporting lubrication and rotation are provided between the pulsator shaft 6, the drain shaft 5 and the input end 302 of the dewatering shaft in pairs.

[0071] During the washing condition: the dewatering shaft is locked, the clutch shaft is locked, and the input shaft 1 is in a free state;

[0072] During the draining condition: the dewatering shaft is locked, the clutch shaft is in a free state, and the input shaft 1 is also in a free state;

[0073] During the dewatering condition: the dewatering shaft is in a free state, the clutch shaft is locked, and the input shaft 1 is locked.

[0074] Next, in combination with the attached Figure 1 , the operating states of each condition will be specifically described.

[0075] As Figure 1 shown, the reduction clutch includes an input shaft 1 for transmitting power and a pulsator shaft 6 for outputting power after being transmitted through a reduction power transmission component. The outer peripheries of the input shaft 1 and the pulsator shaft 6 are provided with a clutch shaft and a dewatering shaft for flexibly converting washing and dewatering. Among them, the outer periphery of the input shaft 1 is successively provided with a rotatable intermediate shaft 15 and a clutch shaft 2 from the inside to the outside, and the outer periphery of the pulsator shaft 6 is successively provided with a rotatable drain shaft 5 and a dewatering shaft 4 from the inside to the outside. A clutch device is provided on the clutch shaft, and the clutch device can slide up and down at three positions: upper, middle, and lower on the clutch shaft.

[0076] Preferably, the speed reduction power transmission component includes an input shaft gear 21 disposed at the top of the input shaft 1, an internal gear ring 12 disposed around the input shaft gear 21, and a planetary gear 20 disposed between the input shaft gear 21 and the internal gear ring 12. The inner side of the planetary gear 20 meshes with the input shaft gear 21, the outer side of the planetary gear 20 meshes with the internal gear ring 12, and the planetary gear 20 is rotatably mounted on the planet carrier 11.

[0077] Further, the planet carrier 11 is connected to the agitator shaft 6, and the internal gear ring 12 is connected to the drain shaft 5.

[0078] Furthermore, the clutch position of the clutch device is located at the intermediate shaft 15 and / or the drain shaft 5 or any intermediate position.

[0079] A clutch device (not shown in the figure) is provided at the clutch position of the intermediate shaft 15. Under the control of the washing machine control board program, the clutch device can slide up and down at three positions, namely, the upper, middle, and lower positions, on the surface of the intermediate shaft 15.

[0080] During the washing operation, the clutch device is in the upper position. At this time, under the action of the clutch device, the intermediate shaft 15 and the clutch shaft 2 are engaged with the housing of the washing machine clutch and remain stationary. The input shaft 1 is completely separated from the clutch device and is in a free state. Under the action of the input power, it rotates bidirectionally and outputs to the agitator shaft 6 through the speed reduction power transmission component to wash the clothes. This is the connection state of the clutch device during the washing operation.

[0081] When the clutch device moves downward to the middle position under the action of an external force, the clutch shaft 2 still remains engaged with the housing of the washing machine clutch and remains stationary. The input shaft 1 and the intermediate shaft 15 are both in a free state and can rotate freely. The power at the end of the input shaft 1 drives the drain shaft 5 to rotate by an angle under the action of the gear train, opening the drain valve to drain water. This is the connection state during the drainage operation.

[0082] When the clutch device slides downward to the lower position under the action of an external force, the clutch device completely engages the intermediate shaft 15 and the input shaft 1 as a whole. At this time, the clutch shaft 2 is completely disengaged from the housing and is also in a free state. The input power connects the dewatering shaft 301, the intermediate shaft 15, and the input shaft 1 as a whole. This is the connection state of the clutch device during the dewatering operation.

[0083] When the dewatering is completed, the clutch device returns to the middle position under the action of an external force. The clutch device engages the clutch shaft 2 with the housing and remains stationary. The intermediate shaft 15 and the input shaft 1 are in a free state and can rotate relative to each other. Under the action of the control board program, the input shaft 1 and the intermediate shaft 1 rotate in the opposite direction by an angle. Under the action of the gear train, the agitator shaft 6 and the drain shaft 5 rotate in the opposite direction by an angle to close the drain valve. This is the connection state when the drain hole is closed.

[0084] When the clutch device returns to the initial position under the action of an external force, the clutch device drives the clutch shaft 2 and the intermediate shaft 15 to be fully engaged with the housing and remain stationary, and is completely disengaged from the input shaft 1, restoring the connection state in the washing working condition.

[0085] As some embodiments of the present invention, the clutch device can slide axially at three positions: upper, middle, and lower under the action of an external pawl. The external pawl controls the axial movement of the pawl at the upper, middle, and lower positions through a lever fulcrum. One end of the pawl connected to an external traction motor is connected to the clutch device at the other end of the fulcrum.

[0086] Example 3, in combination with Figures 2 - 3, a double-clutch device for a water-saving washing machine is disclosed. It includes a pulsator shaft 6 connected to the pulsator of the washing machine, a dehydration shaft 4 disposed outside the pulsator shaft 6 and connected to the flange 8 of the water-saving washing barrel of the washing machine, and a drainage shaft 5 rotatably disposed between the pulsator shaft 6 and the dehydration shaft 4 and connected to a drainage tray 7 for draining water. A notch engagement pair 14 is provided between the drainage shaft 5 and the dehydration shaft 4. An upper clutch sleeve 10 for sliding clutch is provided on the drainage shaft 5, and the upper clutch sleeve 10 passes through a notch provided on the dehydration shaft 4. The pulsator shaft 6 is connected to the input shaft 1 through a speed reduction gear train disposed in a brake wheel 3. The brake wheel 3 is integrally fixed with the dehydration shaft 4 at the upper part and integrally fixed with a clutch shaft 2 at the lower part. The clutch shaft 2 is rotatably disposed outside the input shaft 1. An intermediate shaft 15 that can rotate is provided between the clutch shaft 2 and the input shaft 1. A lower clutch sleeve 13 is provided on the clutch shaft 2 and the intermediate shaft 15. The lower clutch sleeve 13 is divided into two parts, an inner part and an outer part, that can rotate relative to each other, and the inner and outer parts can slide on the intermediate shaft 15 and the clutch shaft 2 respectively. When the lower clutch sleeve 13 moves upward to the upper position, its inner part engages with the housing 9 and disengages from the input shaft 1, and its outer part disengages from the housing 9. When the lower clutch sleeve 13 is in the middle position, its inner part disengages from the housing 9 and the input shaft 1, and its outer part engages with the housing 9. When the lower clutch sleeve 13 moves downward to the lower position, both its inner and outer parts disengage from the housing 9, and its inner part engages with the input shaft 1. The engagement angle of the notch engagement pair 14 is 45-90 degrees. A planet carrier 11 and an internal gear ring 12 are provided in the speed reduction gear train. The planet carrier 11 is connected to the pulsator shaft 6, the intermediate shaft 15 is connected to the planet carrier 11, the internal gear ring 12 is connected to the drainage shaft 5, the internal gear ring 12 engages with a planet gear inside, the planet gear is movably installed on the planet carrier 11, and the planet gear engages with an input shaft gear disposed at the top of the input shaft 1. The upper clutch sleeve 10 and the drainage shaft 5 are axially slidably clutched. The lower clutch sleeve 13 is axially slidably connected to the clutch shaft 2, the intermediate shaft 15, and the input shaft 1, and the lower clutch sleeve 10 is axially slidably connected to the housing 9.

[0087] During the washing state, the upper clutch sleeve 10 is in the upper position, the dehydration shaft 4 and the drainage shaft 5 are integrated. The lower clutch sleeve 13 is in the middle position, the outer part of the lower clutch sleeve 13 engages with the housing 9, the clutch shaft 2 engaged with the lower clutch sleeve 13 is locked, and the dehydration shaft 4 connected to the brake wheel 3 is fixed. Therefore, the drainage shaft 5 is also fixed. When the input shaft 1 rotates, it drives the pulsator shaft 6 to rotate.

[0088] In the drainage state, the upper clutch sleeve 10 is in the lower position, the dehydration shaft 4 is disengaged from the drainage shaft 5, the drainage shaft 5 is in a free state, the lower clutch sleeve is in the middle position, the outer part of the lower clutch sleeve 13 is meshed with the shell 9 as a whole, the clutch shaft 2 is locked, the dehydration shaft 4 connected with the clutch shaft 2 and the brake wheel 3 is locked, and the intermediate shaft 15 is in a free state. However, since the intermediate shaft 15 is kept relatively stationary by the resistance of the clothes through the planetary carrier 11 and the impeller shaft 6, when the input shaft 1 inputs power, the inner gear ring 12 in the free state obtains a corresponding increased torque after the deceleration of the reduction gear train, and the drainage shaft 5 connected to the inner gear ring 12 also obtains a corresponding increased torque, and the water sealing disk rotates a corresponding angle, the drainage hole is connected, and the water is drained.

[0089] In the dehydration state, the upper clutch sleeve 10 is in the upper position, the dehydration shaft 4 is connected to the drainage shaft 5 as a whole, the lower clutch sleeve 13 is in the lower position, the clutch shaft 2 is relaxed, the intermediate shaft 15 is connected to the input shaft 1 as a whole, and the entire brake wheel rotates together for dehydration.

[0090] On the contrary, when switching from the dehydration state to the washing state, the drain outlet is closed.

[0091] As some embodiments of the present invention, Figures 22 - 28 As shown, a fixed sleeve 16 is fixedly installed at the lower end of the housing 9, and the fixed sleeve 16 is provided with a second meshing tooth B2', and the second meshing tooth B2' forms a slot. The lower ends of the input shaft 1, the intermediate shaft 15 and the clutch shaft 2 are all provided with spline teeth, and the spline teeth at the lower ends of the input shaft 1, the intermediate shaft 15 and the clutch shaft 2 are input shaft spline, first spline and second spline respectively. The lower end of the clutch shaft 2 is provided with a first meshing tooth on the lower side of the first spline. A movable sleeve 17 is also mounted on the input shaft spline at the lower end of the input shaft 1, and the movable sleeve 17 is provided with a third meshing tooth A1'.

[0092] The intermediate shaft 15 and the clutch shaft 2 are provided with a lower clutch sleeve 13, which can slide in the axial direction, so that the lower clutch sleeve 13 is meshed or separated with the input shaft 1, the intermediate shaft 15 and the clutch shaft 2, thereby controlling the relative meshing relationship between the input shaft 1, the intermediate shaft 15 and the clutch shaft 2. The lower clutch sleeve 13 includes an inner clutch sleeve 1301 and an outer clutch sleeve 1303 which are separated from each other. The inner clutch sleeve 1301 is sleeved in the outer clutch sleeve 1303, and the inner sleeve can rotate freely in the circumferential direction. The inner side of the outer clutch sleeve 1303 is provided with a first step surface in the circumferential direction, and the outer side of the inner clutch sleeve 1301 is provided with a second step surface in the circumferential direction. The second step surface is relatively independent of the first step surface. The second step surface on the inner clutch sleeve 1301 is located on the first step surface of the outer clutch sleeve 1303, so that the inner clutch sleeve 1301 and the outer clutch sleeve 1303 are clamped in the axial direction.

[0093] The inner side wall of the inner clutch sleeve 1301 is provided with a third spline C1, the lower end is provided with a fourth engaging tooth A1, and the upper end is provided with a fifth engaging tooth A2. The inner side wall of the outer clutch sleeve 1303 is provided with a fourth spline D1, the lower end is provided with a sixth engaging tooth B1, and the upper end is provided with a seventh engaging tooth B2. Small compression springs 1302 and large compression springs 1304 are respectively sleeved on the inner clutch sleeve 1301 and the outer clutch sleeve 1303, and the small compression springs 1302 and the large compression springs 1304 are movably installed on the inner clutch sleeve 1301 and the outer clutch sleeve 1303. The outer clutch sleeve 1303 can slide axially.

[0094] The meshing relationships of various types of teeth on the intermediate shaft 15, the clutch shaft 2, the outer clutch sleeve 1303, and the inner clutch sleeve 1301 are as follows:

[0095] The first spline at the lower end of the intermediate shaft 15 is always meshed with the third spline C1 on the inner side wall of the inner clutch sleeve 1301;

[0096] The second spline at the lower end of the clutch shaft 2 is always meshed with the fourth spline D1 on the inner side wall of the outer clutch sleeve 1303;

[0097] The second engaging tooth B2' at the lower end of the fixed sleeve 16 is meshed with or separated from the seventh engaging tooth B2 at the upper end of the outer clutch sleeve 1303;

[0098] The first engaging tooth at the lower end of the clutch shaft 2 is meshed with or separated from the fifth upper engaging tooth A2 at the upper end of the inner clutch sleeve 1301;

[0099] The third engaging tooth A1' on the movable sleeve 17 is meshed with or separated from the fourth engaging tooth A1 at the lower end of the inner clutch sleeve 1301; at the same time, the third engaging tooth A1' on the movable sleeve 17 can also be meshed with or separated from the sixth engaging tooth B1 of the outer clutch sleeve 1303.

[0100] The washing machine is provided with a clutch pawl, and the clutch pawl is connected to a double-stroke tractor. Under the action of the externally provided clutch pawl, the lower clutch sleeve 13 can be respectively fixed at three positions, namely the upper position, the middle position, and the lower position, from the top to the bottom of the washing machine, such as Figure 28 the three positions shown as I, II, and III. Under the action of the tractor, the clutch pawl adjusts the position of the lower clutch sleeve 13, so that the outer clutch sleeve 1303 and the inner clutch sleeve 1301 are respectively in different positions, thereby controlling the relationship among the input shaft 1, the intermediate shaft 15, and the clutch shaft 2. By adjusting the positional relationship between the upper clutch sleeve 10 and the notch engaging pair 14 through the control system, the dehydration shaft 4 and the drainage shaft 5 are engaged or separated, and finally the control of different working conditions of the corresponding washing machine is realized. Among them, the outer clutch sleeve 1303 can be fixed at three positions axially, and the inner clutch sleeve 1301 can be fixed at two positions axially. The inner clutch sleeve 1301 and the outer clutch sleeve 1303 cooperate with each other under the control of the clutch pawl and can form as Figure 28The three position structures shown in I, II, and III. Under the action of the control system or the clutch pawl, the upper clutch sleeve 10 and the notch engagement pair 14 are in two positions, the upper position and the lower position. According to the function of the dual clutch, different working conditions of the washing machine are realized.

[0101] As Figure 28 shown, when the lower clutch sleeve 13 is in the first position, the tractor does not work. Under the action of the external clutch pawl spring force, the lower clutch sleeve 13 is in the upper position state, and both the inner clutch sleeve 1301 and the outer clutch sleeve 1303 are in the uppermost position. At this time, the second engagement tooth B2' at the lower end of the fixed sleeve 16 meshes with the seventh engagement tooth B2 at the upper end of the outer clutch sleeve 1303; the first engagement tooth A2' at the lower end of the clutch shaft 2 meshes with the fifth engagement tooth A2 at the upper end of the inner clutch sleeve 1301; the third engagement tooth A1' on the movable sleeve 17 is separated from the fourth engagement tooth A1 at the lower end of the inner clutch sleeve 1301; at the same time, the third engagement tooth A1' on the movable sleeve 17 is separated from the sixth engagement tooth B1 of the outer clutch sleeve 1303.

[0102] Since the fixed sleeve 16 is fixed, the second engagement tooth B2' at the lower end of the fixed sleeve 16 meshes with the seventh engagement tooth B2 at the upper end of the outer clutch sleeve 1303, and at this time the outer clutch sleeve 1303 is fixed; since the second spline at the lower end of the clutch shaft 2 meshes with the fourth spline D1 on the inner side wall of the outer clutch sleeve 1303, under the action of the outer clutch sleeve 1303, the clutch shaft 2 is fixed. Since the first engagement tooth at the lower end of the clutch shaft 2 meshes with the fifth upper engagement tooth A2 at the upper end of the inner clutch sleeve 1301, the inner clutch sleeve 1301 is fixed at this time; since the first spline at the lower end of the intermediate shaft 15 meshes with the third spline C1 on the inner side wall of the inner clutch sleeve 1301, under the action of the inner clutch sleeve 1301, the intermediate shaft 15 is fixed. At the same time, since the third engagement tooth A1' on the movable sleeve 17 is separated from the fourth engagement tooth A1 at the lower end of the inner clutch sleeve 1301; and the third engagement tooth A1' on the movable sleeve 17 is separated from the sixth engagement tooth B1 of the outer clutch sleeve 1303, the inner clutch sleeve 1301 and the outer clutch sleeve 1303 are relatively independent of the input shaft 1. That is, at this time, both the clutch shaft 2 and the intermediate shaft 15 are fixed by the fixed sleeve 16 and are relatively independent of the input shaft 1. The meshing relationship between the intermediate shaft 15 and the lower planetary gear causes the lower planetary gear to be braked, and finally the brake wheel 3 is braked, and the dehydration shaft 4 connected to the brake wheel 3 also remains stationary.

[0103] When the washing machine is in the washing working condition, the tractor executes the first stroke, the clutch pawl turns through a preset angle, and the inner clutch sleeve 1301 and the outer clutch sleeve 1303 of the lower clutch sleeve 13 move downward by one stroke respectively under the action of the small compression spring 1302 and the large compression spring 1304. At this time, the lower clutch sleeve 13 is in the middle position state, that is, the second position.

[0104] At this time, the second engaging tooth B2' at the lower end of the fixed sleeve 16 engages with the seventh engaging tooth B2 at the upper end of the outer clutch sleeve 1303; the first engaging tooth at the lower end of the clutch shaft 2 separates from the fifth upper engaging tooth A2 at the upper end of the inner clutch sleeve 1301; the third engaging tooth A1' on the movable sleeve 17 engages with the fourth engaging tooth A1 at the lower end of the inner clutch sleeve 1301; the third engaging tooth A1' on the movable sleeve 17 separates from the sixth engaging tooth B1 of the outer clutch sleeve 1303.

[0105] The fixed sleeve 16 is stationary. Since the second engaging tooth B2' at the lower end of the fixed sleeve 16 engages with the seventh engaging tooth B2 at the upper end of the outer clutch sleeve 1303, the outer clutch sleeve 1303 is fixed at this time; since the second spline at the lower end of the clutch shaft 2 engages with the fourth spline D1 on the inner side wall of the outer clutch sleeve 1303, the clutch shaft 2 is fixed under the action of the outer clutch sleeve 1303. The movable sleeve 17 is fixed together with the input shaft 1. Since the third engaging tooth A1' on the movable sleeve 17 separates from the sixth engaging tooth B1 of the outer clutch sleeve 1303, the intermediate shaft 15 remains in a free state.

[0106] Since the first engaging tooth at the lower end of the clutch shaft 2 separates from the fifth engaging tooth A2 at the upper end of the inner clutch sleeve 1301, the inner clutch sleeve 1301 and the outer clutch sleeve 1303 are relatively independent at this time. That is, the clutch shaft 2 and the intermediate shaft 15 remain relatively independent.

[0107] The movable sleeve 17 is fixed together with the input shaft 1. Since the third engaging tooth A1' on the movable sleeve 17 engages with the fourth engaging tooth A1 at the lower end of the inner clutch sleeve 1301, the inner clutch sleeve 1301 is fixed together with the input shaft 1; since the first spline at the lower end of the intermediate shaft 15 engages with the third spline C1 on the inner side wall of the inner clutch sleeve 1301, the intermediate shaft 15 is fixed together with the input shaft 1 under the action of the inner clutch sleeve 1301. That is, at this time, the clutch shaft 2 is fixed by the fixed sleeve 16, the intermediate shaft 15 is fixed together with the input shaft 1, the clutch shaft 2 is relatively independent from the intermediate shaft 15 and the input shaft 1 that are fixed together, the intermediate shaft 15 and the input shaft 1 engage and rotate with each other, and the clutch shaft 2 is fixed.

[0108] At this time, the upper clutch sleeve 10 is also in the upper position. Under the action of the upper clutch sleeve 10, the drain shaft 5 engages and integrates with the dewatering shaft 4 through a sliding key or a gear. When the input shaft 1 rotates, the input gear at the top of the input shaft 1 engages with the upper planetary gear, thereby driving the planet carrier 11 to rotate in the same direction as the wave wheel shaft 6. Finally, the wave wheel shaft 6 rotates under the power of the input shaft 1. At this time, only the wave wheel in the washing machine moves under the action of the wave wheel shaft 6 to achieve washing.

[0109] During the drainage operation, the upper clutch sleeve 10 moves downward under the action of the control device or the tractor. A receiving groove is provided on the drainage tray 5. At this time, the engaging member between the upper clutch sleeve 10 and the drainage tray 5 is separated, and the drainage shaft 5 is in a free state. When the upper clutch sleeve 10 is in the lower position, the lower clutch sleeve 13 is still in the middle position.

[0110] The intermediate shaft 15 is in a free state. At this time, the upper clutch sleeve 10 is in the lower position under the action of the control system. The dehydration shaft 4 is disengaged from the drainage shaft 5, and the dehydration shaft 4 and the drainage shaft 5 are in a separated state. The drainage shaft 5 is in a free state. However, since the intermediate shaft 15 and the impeller shaft 6 are relatively stationary under the resistance of the clothes through the planet carrier 11, when the input shaft 1 inputs power, after the deceleration of the reduction gear train, a corresponding increased torque is obtained on the internally toothed ring 12 in the free state. The drainage shaft 5 connected to the internally toothed ring 12 also obtains a corresponding increased torque. Since the brake wheel 3 is connected to the dehydration shaft 4, the dehydration shaft 4 is locked under the drive of the brake wheel 3, and the water sealing plate rotates by a corresponding angle, and the drainage holes are conducted to achieve drainage.

[0111] Furthermore, when the washing machine is in the dehydration state or the centrifugal washing state, the double-stroke tractor performs the second action, and the clutch pawl rotates by a preset angle again. The position of the inner clutch sleeve 1301 is the same as that in the above-mentioned reverse double-power output. The outer clutch sleeve 1303 moves downward by one position and is in the lower position state.

[0112] At this time, the second engaging tooth B2' at the lower end of the fixed sleeve 16 is separated from the seventh engaging tooth B2 at the upper end of the outer clutch sleeve 1303; the first engaging tooth at the lower end of the clutch shaft 2 is separated from the fifth upper engaging tooth A2 at the upper end of the inner clutch sleeve 1301; the third engaging tooth A1' on the movable sleeve 17 is engaged with the fourth engaging tooth A1 at the lower end of the inner clutch sleeve 1301; at the same time, the third engaging tooth A1' on the movable sleeve 17 is engaged with the sixth engaging tooth B1 of the outer clutch sleeve 1303.

[0113] Since the second engaging tooth B2' at the lower end of the fixed sleeve 16 is separated from the seventh engaging tooth B2 at the upper end of the outer clutch sleeve 1303, at this time, the outer clutch sleeve 1303 and the fixed sleeve 16 are relatively independent, and the outer clutch sleeve 1303 is not restricted by the fixed sleeve 16;

[0114] Since the first engaging tooth at the lower end of the clutch shaft 2 is separated from the fifth upper engaging tooth A2 at the upper end of the inner clutch sleeve 1301, at this time, the inner clutch sleeve 1301 and the outer clutch sleeve 1303 are relatively independent.

[0115] The movable sleeve 17 is fixed together with the input shaft 1. Since the third engaging tooth A1' on the movable sleeve 17 is engaged with the sixth engaging tooth B1 of the outer clutch sleeve 1303, the outer clutch sleeve 1303 is fixed together with the input shaft 1.

[0116] Since the second spline at the lower end of the clutch shaft 2 meshes with the fourth spline D1 on the inner side wall of the outer clutch sleeve 1303, the outer clutch sleeve 1303 is fixed to the clutch shaft 2. That is, the clutch shaft 2 is fixed to the input shaft 1 through the outer clutch sleeve 1303.

[0117] The movable sleeve 17 is fixed to the input shaft 1. Since the third engaging tooth A1' on the movable sleeve 17 meshes with the fourth engaging tooth A1 at the lower end of the inner clutch sleeve 1301, the inner clutch sleeve 1301 is fixed to the input shaft 1. Since the first spline at the lower end of the intermediate shaft 15 meshes with the third spline C1 on the inner side wall of the inner clutch sleeve 1301, under the action of the inner clutch sleeve 1301, the intermediate shaft 15 is fixed to the input shaft 1.

[0118] That is, at this time, the clutch shaft 2, the intermediate shaft 15, and the input shaft 1 are fixed together. The upper clutch sleeve 10 is in the upper position under the action of the control system, and the dehydration shaft 4 and the drainage shaft 5 are connected as a whole. At this time, the clutch shaft 2, the intermediate shaft 15, and the input shaft 1 rotate together. The reduction gear train transmits motion under the action of the input shaft 1. When the input shaft 1 rotates, the intermediate shaft 15, the clutch shaft 2, and the input shaft 1 are connected as a whole. The dehydration shaft 4 connected to the brake wheel 3, the drainage shaft 5 meshed with the dehydration shaft 4 under the action of the upper clutch sleeve 10, and the wave wheel shaft 6 driven by the planet carrier 11 rotate in the same direction under the simultaneous action of the three shafts at the input end, for the same-speed output in the dehydration state.

[0119] In the embodiment of the present invention, the system for controlling the up and down movement of the upper clutch sleeve 10 and the lower clutch sleeve 13 includes, but is not limited to, control devices such as a fork, a ratchet and pawl, an electric control, and a magnetic attraction to achieve.

[0120] Embodiment 4, as Figures 4 - 10As shown in the figure, a water-saving washing machine clutch device is disclosed. It includes a pulley shaft 6 connected to the washing machine agitator, a dehydration shaft 4 disposed outside the pulley shaft 6 and connected to the water-saving washing barrel of the washing machine, and a drainage shaft 5 rotatably disposed between the pulley shaft 6 and the dehydration shaft 4 and connected to a drainage tray for draining water. A clutch wheel 23 is axially slidably connected to the lower part of the drainage shaft 5. The clutch wheel 23 includes two parts, an inner clutch wheel and an outer clutch wheel, which can rotate relative to each other radially, and the two parts are in a non-moving state axially. When the inner clutch wheel is driven downward, it can be engaged with the pulley shaft 6 as a whole. When the outer clutch wheel is driven upward, it is engaged with the dehydration shaft 4 as a whole. The outer edge of the outer clutch wheel is connected to an external pawl that controls its up and down movement by rotation. A gear train 27 for decelerating drive is connected to the lower part of the pulley shaft 6. The gear train 27 is wrapped in a brake wheel 3. A planet carrier and an internal gear ring are provided in the gear train 27. The planet carrier is connected to the pulley shaft. The pulley shaft 6 is connected to the planet carrier. The internal gear ring is connected to the brake wheel 3. The internal gear ring meshes with a planet gear inside. The planet gear is movably installed on the planet carrier. The planet gear meshes with a input shaft gear disposed at the top of the input shaft. The upper opening of the brake wheel 3 is fixedly connected to the dehydration shaft 4 as a whole. A pair of symmetric notches 22 are formed in the connection pair between the brake wheel 3 and the dehydration shaft 4. The outer clutch wheel passes through the inside and outside of the notch 22 for up and down movement. A first elastic body 19 is provided between the dehydration shaft 4 and the clutch wheel 23. The first elastic body 19 is preferably a compression spring. The inner clutch wheel is connected to the pulley shaft 6 and the outer clutch wheel is connected to the dehydration shaft 4 through end face clutch cooperation. The lower part of the inner clutch wheel is provided with a lower engagement tooth 2301 that meshes downward with the pulley shaft 6. A lower engagement tooth groove 601 that meshes with the lower engagement tooth 2301 of the inner clutch wheel is provided on the outer periphery of the lower part of the pulley shaft 6. The upper part of the outer clutch wheel is provided with an upper engagement tooth 2302 that meshes upward with the dehydration shaft 4. An upper engagement tooth groove 401 that meshes with the upper engagement tooth 2302 of the outer clutch wheel is provided inside the dehydration shaft 4. A chute 501 is provided on the outer periphery of the lower part of the drainage shaft 1. A sliding ring 2303 that is slidably matched with the chute 501 is provided on the inner periphery of the inner clutch wheel. A lower clutch sleeve 13 for converting the washing and dehydration working conditions is provided at the power input end of the reduction gear train 27.

[0121] The two parts inside and outside the clutch wheel 23 are connected by a first bearing 24.

[0122] Combined Figure 8, in the washing state, the clutch wheel 23 moves upward to the upper position. The lower engaging teeth 2301 at the lower end of the clutch wheel 23 are completely disengaged from the lower engaging tooth groove 601 of the agitator shaft 6. The upper engaging teeth 2302 of the outer clutch wheel are engaged with the upper engaging tooth groove 401 of the dewatering shaft 4. At this time, the drain shaft 5 and the dewatering shaft 4 remain stationary. The lower clutch sleeve 13 of the input part is in a disengaged state. After the power of the input part is decelerated by the gear train 27, it drives the agitator shaft 6 to rotate to wash the clothes.

[0123] Combined with Figure 9 、 10 , in the draining state, the clutch wheel 23 moves downward to the middle position. The lower engaging teeth 2301 at the lower end of the clutch wheel 23 are still in the tooth alignment state before engagement with the lower engaging tooth groove 601 of the agitator shaft 6. The upper engaging teeth 2302 of the outer clutch wheel are disengaged from the upper engaging tooth groove 401 of the dewatering shaft 4. The lower clutch sleeve 13 of the input part is in a disengaged state. At this time, the washing tub connected to the dewatering shaft 4 remains stationary. Under the action of the downward movement of the clutch wheel 23, the drain shaft 5 connected to the drain pan is integrated with the agitator shaft 6 and rotates under the action of the input power, driving the drain pan and the washing tub to rotate relative to each other by an angle to open the drain hole for draining.

[0124] Combined with Figure 10 , in the dewatering state, the clutch wheel 23 is in the lower position. The lower engaging teeth 2301 at the lower end of the clutch wheel 23 are completely engaged with the lower engaging tooth groove 601 of the agitator shaft 6. The upper engaging teeth 2302 of the outer clutch wheel are disengaged from the upper engaging tooth groove 401 of the dewatering shaft 4. The lower clutch sleeve 13 of the input part is in an engaged state. At this time, the agitator shaft 6 moves together with the dewatering shaft 4 and the drain shaft 5 for high-speed centrifugal dewatering.

[0125] Embodiment 5, as Figure 11 、 Figures 22 - 28 shown, discloses a structure of the working position of the lower clutch sleeve 13 under the action of three-axis input. The lower end of the reduction clutch includes an input shaft 1, a clutch shaft 2, and an intermediate shaft 15. The clutch shaft 2 is rotatably disposed outside the input shaft 1. An intermediate shaft 15 that can rotate movably is provided between the clutch shaft 2 and the input shaft 1. The upper end of the clutch shaft 2 is connected to the brake wheel 3. A fixed sleeve is fixedly installed at the lower end of the reduction clutch housing. The fixed sleeve is provided with second engaging teeth, and the second engaging teeth form a card slot. Spline teeth are provided at the lower ends of the input shaft 1, the intermediate shaft 15, and the clutch shaft 2. The spline teeth at the lower ends of the input shaft 1, the intermediate shaft 15, and the clutch shaft 2 are the input shaft spline, the first spline, and the second spline in sequence. Among them, the lower end of the clutch shaft 2 is provided with first engaging teeth on the lower side of the first spline. An activity sleeve is also sleeved on the input shaft spline at the lower end of the input shaft 1, and the activity sleeve is provided with third engaging teeth.

[0126] A lower clutch sleeve 13 is provided on the intermediate shaft 15 and the clutch shaft 2. The lower clutch sleeve 13 can slide axially, so that the lower clutch sleeve 13 meshes with or separates from the input shaft 1, the intermediate shaft 15 and the clutch shaft 2, thereby controlling the relative meshing relationship among the input shaft 1, the intermediate shaft 15 and the clutch shaft 2. The lower clutch sleeve 13 includes a separated inner clutch sleeve 1301 and an outer clutch sleeve 1303. The inner clutch sleeve 1301 is sleeved inside the outer clutch sleeve 1303. The inner sleeve can rotate freely in the circumferential direction. A first stepped surface is provided along the circumferential direction on the inner side of the outer clutch sleeve 1303, and a second stepped surface is provided along the circumferential direction on the outer side of the inner clutch sleeve 1301. The second stepped surface is relatively independent of the first stepped surface. The second stepped surface on the inner clutch sleeve 1301 is located on the first stepped surface of the outer clutch sleeve 1303, so that the inner clutch sleeve 1301 and the outer clutch sleeve 1303 are axially clamped together.

[0127] The inner side wall of the inner clutch sleeve 1301 is provided with a third spline C1, the lower end is provided with a fourth meshing tooth A1, and the upper end is provided with a fifth meshing tooth A2. The inner side wall of the outer clutch sleeve 1303 is provided with a fourth spline D1, the lower end is provided with a sixth meshing tooth B1, and the upper end is provided with a seventh meshing tooth B2. Small compression springs 1302 and large compression springs 1304 are respectively sleeved on the inner clutch sleeve 1301 and the outer clutch sleeve 1303. The small compression spring 1302 and the large compression spring 1304 are movably installed on the inner clutch sleeve 1301 and the outer clutch sleeve 1303. The outer clutch sleeve 1303 can slide axially.

[0128] The meshing relationships of various types of teeth on the intermediate shaft 15, the clutch shaft 2, the outer clutch sleeve 1303 and the inner clutch sleeve 1301 are as follows:

[0129] The first spline at the lower end of the intermediate shaft 15 is always meshed with the third spline C1 on the inner side wall of the inner clutch sleeve 1301;

[0130] The second spline at the lower end of the clutch shaft 2 is always meshed with the fourth spline D1 on the inner side wall of the outer clutch sleeve 1303;

[0131] The second meshing tooth B2' at the lower end of the fixed sleeve 16 meshes with or separates from the seventh meshing tooth B2 at the upper end of the outer clutch sleeve 1303;

[0132] The first meshing tooth at the lower end of the clutch shaft 2 meshes with or separates from the fifth upper meshing tooth A2 at the upper end of the inner clutch sleeve 1301;

[0133] The third meshing tooth on the movable sleeve meshes with or separates from the fourth meshing tooth A1 at the lower end of the inner clutch sleeve 1301; at the same time, the third meshing tooth on the movable sleeve 17 can also mesh with or separate from the sixth meshing tooth B1 of the outer clutch sleeve 1303.

[0134] The washing machine is provided with a clutch pawl, and the clutch pawl is connected to a double-stroke tractor. Under the action of the externally provided clutch pawl, the lower clutch sleeve 13 can be fixed at three positions, namely the upper position, the middle position, and the lower position, from the top to the bottom of the washing machine, such as Figure 28 shown in the three positions I, II, and III. Under the action of the tractor, the clutch pawl adjusts the position of the lower clutch sleeve 13, so that the outer clutch sleeve 1303 and the inner clutch sleeve 1301 are respectively in different positions, thereby controlling the relationship between the input shaft 1, the intermediate shaft 15, and the clutch shaft 2. By adjusting the positional relationship between the upper clutch sleeve 10 and the clutch wheel 23 through the control system, the dehydration shaft 4 and the drainage shaft 5 are engaged or separated, and finally the control of different working conditions of the corresponding washing machine is realized. Among them, the outer clutch sleeve 1303 can be fixed at three positions along the axial direction, and the inner clutch sleeve 1301 can be fixed at two positions along the axial direction. The inner clutch sleeve 1301 and the outer clutch sleeve 1303 cooperate with each other under the control of the clutch pawl, and can form three position structures shown in Figure 28 I, II, and III. The upper clutch sleeve 10 and the clutch wheel 23 are in the upper position and the lower position under the action of the control system or the clutch pawl, and different working conditions of the washing machine are realized according to the action of the additional clutch. Figure 28 In the above, a and b represent the root horizontal line and the tip horizontal line of the second meshing teeth on the fixed sleeve; c and d represent the tip horizontal line and the root horizontal line of the third meshing teeth of the movable sleeve.

[0135] Such as Figure 28 shown, when the lower clutch sleeve 13 is in the first position, the tractor does not work. Under the action of the spring force of the externally provided clutch pawl, the lower clutch sleeve 13 is in the upper position state, and both the inner clutch sleeve 1301 and the outer clutch sleeve 1303 are in the uppermost position. At this time, the second meshing teeth at the lower end of the fixed sleeve are engaged with the seventh meshing teeth B2 at the upper end of the outer clutch sleeve 1303; the first meshing teeth at the lower end of the clutch shaft 2 are engaged with the fifth meshing teeth A2 at the upper end of the inner clutch sleeve 1301; the third meshing teeth on the movable sleeve 17 are separated from the fourth meshing teeth A1 at the lower end of the inner clutch sleeve 1301; at the same time, the third meshing teeth on the movable sleeve 17 are separated from the sixth meshing teeth B1 of the outer clutch sleeve 1303.

[0136] Since the fixed sleeve is stationary, the second engaging tooth at the lower end of the fixed sleeve engages with the seventh engaging tooth B2 at the upper end of the outer clutch sleeve 1303. At this time, the outer clutch sleeve 1303 is fixed. Since the second spline at the lower end of the clutch shaft 2 engages with the fourth spline D1 on the inner side wall of the outer clutch sleeve 1303, the clutch shaft 2 is fixed under the action of the outer clutch sleeve 1303. Since the first engaging tooth at the lower end of the clutch shaft 2 engages with the fifth upper engaging tooth A2 at the upper end of the inner clutch sleeve 1301, the inner clutch sleeve 1301 is fixed at this time. Since the first spline at the lower end of the intermediate shaft 15 engages with the third spline C1 on the inner side wall of the inner clutch sleeve 1301, the intermediate shaft 15 is fixed under the action of the inner clutch sleeve 1301. At the same time, since the third engaging tooth on the movable sleeve 17 separates from the fourth engaging tooth A1 at the lower end of the inner clutch sleeve 1301; and the third engaging tooth on the movable sleeve 17 separates from the sixth engaging tooth B1 of the outer clutch sleeve 1303, the inner clutch sleeve 1301 and the outer clutch sleeve 1303 are relatively independent of the input shaft 1. That is, at this time, both the clutch shaft 2 and the intermediate shaft 15 are fixed by the fixed sleeve and are relatively independent of the input shaft 1. The clutch shaft 2 is fixedly connected to the brake wheel 3, and finally the brake wheel 3 is braked, and the dehydration shaft 4 connected to the brake wheel 3 also remains stationary.

[0137] When the lower clutch sleeve 13 is displaced from the first position to the second position, the tractor executes the first stroke, the clutch pawl turns through a preset angle, and the inner clutch sleeve 1301 and the outer clutch sleeve 1303 of the lower clutch sleeve 13 move downward by one stroke respectively under the action of the small compression spring 1302 and the large compression spring 1304. At this time, the lower clutch sleeve 13 is in the middle position, that is, the second position.

[0138] At this time, the second engaging tooth at the lower end of the fixed sleeve engages with the seventh engaging tooth B2 at the upper end of the outer clutch sleeve 1303; the first engaging tooth at the lower end of the clutch shaft 2 separates from the fifth upper engaging tooth A2 at the upper end of the inner clutch sleeve 1301; the third engaging tooth on the movable sleeve engages with the fourth engaging tooth A1 at the lower end of the inner clutch sleeve 1301; the third engaging tooth on the movable sleeve separates from the sixth engaging tooth B1 of the outer clutch sleeve 1303.

[0139] The fixed sleeve is stationary. Since the second engaging tooth at the lower end of the fixed sleeve engages with the seventh engaging tooth B2 at the upper end of the outer clutch sleeve 1303, the outer clutch sleeve 1303 is fixed at this time. Since the second spline at the lower end of the clutch shaft 2 engages with the fourth spline D1 on the inner side wall of the outer clutch sleeve 1303, the clutch shaft 2 is fixed under the action of the outer clutch sleeve 1303. The movable sleeve is fixedly connected to the input shaft 1. Since the third engaging tooth on the movable sleeve separates from the sixth engaging tooth B1 of the outer clutch sleeve 1303, the intermediate shaft 15 remains in a free state.

[0140] Since the first meshing tooth at the lower end of the clutch shaft 2 is separated from the fifth meshing tooth A2 at the upper end of the inner clutch sleeve 1301, the inner clutch sleeve 1301 and the outer clutch sleeve 1303 are relatively independent at this time. That is, the clutch shaft 2 and the intermediate shaft 15 remain relatively independent.

[0141] The movable sleeve is fixed to the input shaft 1. Since the third meshing tooth on the movable sleeve meshes with the fourth meshing tooth A1 at the lower end of the inner clutch sleeve 1301, the inner clutch sleeve 1301 is fixed to the input shaft 1; since the first spline at the lower end of the intermediate shaft 15 meshes with the third spline C1 on the inner side wall of the inner clutch sleeve 1301, under the action of the inner clutch sleeve 1301, the intermediate shaft 15 and the input shaft 1 are fixed together. That is, at this time, the clutch shaft 2 is fixed by the fixed sleeve, the intermediate shaft 15 and the input shaft 1 are fixed together, the clutch shaft 2 is relatively independent of the fixed intermediate shaft 15 and input shaft 1, the intermediate shaft 15 meshes and rotates with the input shaft 1, and the clutch shaft 2 is fixed. This is the second position of the lower clutch sleeve 13.

[0142] When the lower clutch sleeve 13 moves from the second position to the third position, the double-stroke tractor executes the second action, the clutch pawl rotates by a preset angle again, and the position of the inner clutch sleeve 1301 remains the same as that in the above-mentioned reverse double-power output. The outer clutch sleeve 1303 moves down one position and is in the lower position state.

[0143] At this time, the second meshing tooth at the lower end of the fixed sleeve is separated from the seventh meshing tooth B2 at the upper end of the outer clutch sleeve 1303; the first meshing tooth at the lower end of the clutch shaft 2 is separated from the fifth upper meshing tooth A2 at the upper end of the inner clutch sleeve 1301; the third meshing tooth on the movable sleeve meshes with the fourth meshing tooth A1 at the lower end of the inner clutch sleeve 1301; at the same time, the third meshing tooth on the movable sleeve meshes with the sixth meshing tooth B1 of the outer clutch sleeve 1303.

[0144] Since the second meshing tooth at the lower end of the fixed sleeve is separated from the seventh meshing tooth B2 at the upper end of the outer clutch sleeve 1303, the outer clutch sleeve 1303 and the fixed sleeve are relatively independent at this time, and the outer clutch sleeve 1303 is not restricted by the fixed sleeve;

[0145] Since the first meshing tooth at the lower end of the clutch shaft 2 is separated from the fifth upper meshing tooth A2 at the upper end of the inner clutch sleeve 1301, the inner clutch sleeve 1301 and the outer clutch sleeve 1303 are relatively independent at this time.

[0146] The movable sleeve is fixed to the input shaft 1. Since the third meshing tooth on the movable sleeve meshes with the sixth meshing tooth B1 of the outer clutch sleeve 1303, the outer clutch sleeve 1303 is fixed to the input shaft 1.

[0147] Since the second spline at the lower end of the clutch shaft 2 meshes with the fourth spline D1 on the inner side wall of the outer clutch sleeve 1303, the outer clutch sleeve 1303 is fixed to the clutch shaft 2. That is, the clutch shaft 2 is fixed to the input shaft 1 through the outer clutch sleeve 1303.

[0148] The movable sleeve is fixed to the input shaft 1. Since the third engaging tooth on the movable sleeve meshes with the fourth engaging tooth A1 at the lower end of the inner clutch sleeve 1301, the inner clutch sleeve 1301 is fixed to the input shaft 1. Since the first spline at the lower end of the intermediate shaft 15 meshes with the third spline C1 on the inner side wall of the inner clutch sleeve 1301, under the action of the inner clutch sleeve 1301, the intermediate shaft 15 is fixed to the input shaft 1.

[0149] That is, at this time, the clutch shaft 2, the intermediate shaft 15, and the input shaft 1 are fixed together. At this time, the clutch shaft 2, the intermediate shaft 15, and the input shaft 1 can rotate together. This is the third position of the lower clutch sleeve 13.

[0150] This embodiment discloses a structure of a three-axis input of a lower clutch device. That is, according to the need for the lower clutch sleeve 13 to be configured to couple or separate the input shaft from the brake wheel 3, by controlling the position of the lower clutch device, the engagement or separation between the input shaft and the brake wheel 3 is achieved.

[0151] Example 6, in combination with Figures 12 - 13, a structural schematic diagram of an embodiment of a double-clutch device for a water-saving washing machine is disclosed. It includes a pulley shaft 6 connected to the washing machine pulley, a dehydration shaft 4 disposed outside the pulley shaft 6 and connected to the flange 8 of the water-saving washing barrel of the washing machine, a drainage shaft 5 rotatably disposed between the pulley shaft 6 and the dehydration shaft 4 and connected to a drainage tray 7 for draining water. A sector gear engagement pair 25 is provided between the drainage shaft 5 and the dehydration shaft 4. The sector gear engagement pair 25 is configured to engage or disengage the dehydration shaft 4 and the drainage shaft 5 through an upper clutch sleeve 10. An upper clutch sleeve 10 that can be engaged or separated from the housing 9 is provided on the dehydration shaft 4. The pulley shaft 6 is connected to the input shaft 1 through a speed reduction gear train disposed in a brake wheel 3. The upper part of the brake wheel 3 is integrally fixed to the drainage shaft 5, and the lower part of the brake wheel 3 is integrally fixed to a clutch shaft 2. The clutch shaft 2 is rotatably disposed outside the input shaft 1. An axially slidable lower clutch sleeve 13 is provided on the clutch shaft 2. The lower clutch sleeve 13 is configured to connect or disconnect the clutch shaft 2, the housing 9, and the input shaft 1 from each other. The lower clutch sleeve 13 can be engaged with the housing 9 when it moves upward and engaged with the input shaft 1 when it moves downward. When the lower clutch sleeve 13 is in the middle position, it is in a separated state from both the housing 9 and the input shaft 1. The engagement angle of the sector gear engagement pair 25 is 30 - 120 degrees, preferably 45 - 90 degrees. A planet carrier 11 and an internal gear ring 12 are provided in the speed reduction gear train. The planet carrier 11 is connected to the pulley shaft 6. The internal gear ring 12 is fixedly installed on the brake wheel 3 and / or the clutch shaft 2. The internal gear ring 12 meshes with a planet gear inside it. The planet gear is movably installed on the planet carrier 11. The planet gear meshes with an input shaft gear disposed at the top of the input shaft 1. The upper clutch sleeve 10 is connected to the dehydration shaft 4 through an axially sliding fit. The upper clutch sleeve 10 is connected to the housing 9 through an end face clutch fit. The lower clutch sleeve 13 is connected to the clutch shaft 2 and the input shaft through an axially sliding fit. The lower clutch sleeve 10 is connected to the housing 9 through an end face clutch fit.

[0152] In the washing state, under the action of an external control component, the upper clutch sleeve 10 and the lower clutch sleeve 13 move upward to engage with the housing 9 and are in the upper position. The dehydration shaft 4 engaged with the upper clutch sleeve 10 also remains stationary. The brake wheel 3 and the drainage shaft 5 also remain stationary. After the power of the input shaft 1 passes through the speed reduction gear train, it drives the pulley shaft 6 to rotate and wash the clothes.

[0153] In the drainage state, the upper clutch sleeve 10 is in the upper position, the dehydration shaft 4 is fixed, the lower clutch sleeve 13 is in the middle position, the drainage shaft 5 connected to the clutch shaft and the brake wheel 3 can rotate, the agitator shaft 6 is also released, and one input shaft gear of the planetary gear train, two planet carriers 11 and the internal gear ring 12 after deceleration are simultaneously released, resulting in three degrees of freedom. Due to the pressure of the clothes on the agitator connected to the agitator shaft 6, the agitator shaft 6 is blocked. When the input shaft 1 rotates, the drainage shaft 5 connected to the clutch shaft 2 and the brake wheel 3 is driven to rotate passively under the action of the internal gear ring 12, obtaining an increased torque corresponding to the reduction ratio of the gear train, causing the drainage tray 7 connected to the drainage shaft 5 to rotate. The drainage holes on the drainage tray 7 are communicated with the drainage holes on the flange 8, and drainage is carried out.

[0154] In the dehydration state, the upper clutch sleeve 10 and the lower clutch sleeve 13 are lowered to the lower position under the action of the external control component, the dehydration shaft 4 is released, the dehydration shaft 4 is separated from the housing 9, and the dehydration shaft 4 is engaged with the drainage shaft 5 as a whole under the action of the sector gear engagement pair 25. The clutch shaft 2 and the input shaft 1 are integrated and rotate synchronously, and the entire brake wheel 3 rotates together for high-speed centrifugal dehydration.

[0155] Conversely, when switching from the dehydration state to the washing state, the drainage port of the washing machine is closed, including closing the drainage port of the washing machine and / or preventing the drainage holes on the drainage tray 7 from communicating with the drainage holes on the flange 8, so that the washing tub can store water and the working condition can be switched.

[0156] Example 7, in combination with Figures 14 - 15, which is a three-axis input and three-axis output double-clutch device for a water-saving washing machine according to the present invention. It includes a pulsator shaft 6 connected to the pulsator of the washing machine, a dehydration shaft 4 disposed outside the pulsator shaft 6 and connected to the flange 8 of the water-saving washing tub of the washing machine, and a drainage shaft 5 rotatably disposed between the pulsator shaft 6 and the dehydration shaft 4 and connected to a drainage tray 7 for draining water. A sector gear engagement pair 25 is provided between the drainage shaft 5 and the dehydration shaft 4. The sector gear engagement pair 25 is configured to engage or disengage the dehydration shaft 4 and the drainage shaft 5 through an upper clutch sleeve 10. An upper clutch sleeve 10 that can be engaged with or separated from the housing 9 as a whole is provided on the dehydration shaft 4. The pulsator shaft 6 is connected to the input shaft 1 through a speed reduction gear train disposed within a brake wheel 3. The upper part of the brake wheel 3 is integrally fixed to the drainage shaft 5, and the lower part of the brake wheel 3 is integrally fixed to a clutch shaft 2. The clutch shaft 2 is rotatably disposed outside the input shaft 1. An intermediate shaft 15 that can rotate is provided between the clutch shaft 2 and the input shaft 1. A lower clutch sleeve 13 is provided on the clutch shaft 2 and the intermediate shaft 15. The lower clutch sleeve 13 is configured to connect or disconnect the clutch shaft 2, the intermediate shaft 15, the housing 9, and the input shaft 1 from each other. The lower clutch sleeve 13 is divided into two parts, an inner part and an outer part, that can rotate relative to each other, and the inner and outer parts can slide on the intermediate shaft 15 and the clutch shaft 2 respectively. When the lower clutch sleeve 13 moves upward to the upper position, its inner part engages with the housing 9 and disengages from the input shaft 1, and its outer part disengages from the housing 9. When the lower clutch sleeve 13 is in the middle position, its inner part disengages from the housing 9 and the input shaft 1, and its outer part engages with the housing 9. When the lower clutch sleeve 13 moves downward to the lower position, both its inner and outer parts disengage from the housing 9, and its inner part engages with the input shaft 1. The engagement angle of the sector gear engagement pair 25 is 30-120 degrees, preferably 45-90 degrees. A planet carrier 11 and an internal gear ring 12 are provided within the speed reduction gear train. The planet carrier 11 is connected to the pulsator shaft 6, and the intermediate shaft 15 is connected to the planet carrier. The internal gear ring 12 is fixedly installed on the brake wheel 3 and / or the clutch shaft 2. The internal gear ring 12 meshes with a planet gear inside it. The planet gear is movably installed on the planet carrier 11, and the planet gear meshes with an input shaft gear disposed at the top of the input shaft 1. The upper clutch sleeve 10 is connected to the dehydration shaft 4 through an axial sliding fit, and the upper clutch sleeve 10 is connected to the housing 9 through an end face clutch fit. The lower clutch sleeve 13 is connected to the clutch shaft 2, the intermediate shaft 15, and the input shaft 1 through an axial sliding fit, and the lower clutch sleeve 13 is connected to the housing 9 through an axial sliding fit.

[0157] In the washing state, the inner parts of the upper clutch sleeve 10 and the lower clutch sleeve 13 move upward under the action of an externally connected control component and engage with the housing 9 to form an integral body, being in the upper position. The dehydration shaft 4 meshing with the upper clutch sleeve 10 is also fixed, and the brake wheel 3 and the drain shaft 5 are also fixed. The power of the input shaft 1 drives the agitator shaft 6 to rotate and wash the clothes after passing through the speed reduction gear train.

[0158] In the draining state, the upper clutch sleeve 10 is in the upper position, the dehydration shaft 4 is fixed, and the lower clutch sleeve 13 is also in the upper position. Its inner part engages with the housing 9 to form an integral body. The agitator shaft 6 connected to the intermediate shaft 15 slidably connected to its inner part is fixed, its outer part is disengaged from the housing 9, and its inner part is disengaged from the input shaft 1. The rotational power of the input shaft 1 is transmitted to the drain shaft 5 integrally connected with the internal gear ring 12 after passing through the speed reduction gear train, obtaining an increased torque corresponding to the speed reduction ratio of the gear train, causing the drain tray 7 connected to the drain shaft 5 to rotate. The drain holes on the drain tray 7 are communicated with the drain holes on the flange 8 to drain water.

[0159] In the dehydration state, the upper clutch sleeve 10 and the lower clutch sleeve 13 move downward under the action of an externally connected control component and are in the lower position. The dehydration shaft 4 is released, and the dehydration shaft 4 is separated from the housing 9. The dehydration shaft 4 engages with the drain shaft 5 to form an integral body under the action of the sector gear meshing pair 25. The clutch shaft 2, the intermediate shaft 15 and the input shaft 1 are connected to form an integral body and rotate synchronously with each other. The entire brake wheel 3 rotates together for high-speed centrifugal dehydration.

[0160] Conversely, when converting from the dehydration state to the washing state, the drain opening is closed, including closing the drain opening of the washing machine and / or the drain holes on the drain tray 7 are not communicated with the drain holes on the flange 8, so that the washing tub can store water to achieve the conversion of working conditions.

[0161] Example 8, combined with Figures 16 - 17, a schematic diagram of the principle structure of an embodiment of a three-axis input single-clutch device for a water-saving washing machine is disclosed. It includes an input shaft 1 for transmitting power, a clutch shaft 2 rotatably mounted outside the input shaft 1, and an intermediate shaft 15 rotatably disposed between the input shaft 1 and the clutch shaft 2. The clutch shaft 2 is rotatably mounted in a housing 9. The input shaft 1 and the intermediate shaft 15 are connected to a wave wheel shaft 6 and a drainage shaft 5 through a speed reduction gear train disposed within a brake wheel 3. The brake wheel 3 is connected to the clutch shaft 2 at the bottom and to a dehydration shaft 4 rotatably provided outside the wave wheel shaft 6 at the top. An axially slidable lower clutch sleeve 13 is provided on the clutch shaft 2. The lower clutch sleeve 13 cooperates to engage or disengage between the input shaft 1, the intermediate shaft 15, the clutch shaft 2, and the housing 9, realizing the conversion between the washing working condition, the drainage working condition, and the dehydration working condition. Three meshing teeth A, B, and C are provided on the lower clutch sleeve 13. When the lower clutch sleeve 13 slides to the upper position on the clutch shaft 2, A disengages from the input shaft 1, B engages with the intermediate shaft 15, and C engages with the housing 9, and the input shaft 1 is in a free state. When the lower clutch sleeve 13 slides to the middle position on the clutch shaft 2, A disengages from the input shaft 1, B disengages from the intermediate shaft 15, and C engages with the housing 9, and the input shaft 1 and the intermediate shaft 15 are in a free state. When the lower clutch sleeve 13 slides to the lower position on the clutch shaft 2, A engages with the input shaft 1, B disengages from the intermediate shaft 15, and C disengages from the housing 9, and the input shaft 1 and the clutch shaft 2 are integrated, and the intermediate shaft is in a free state. The input shaft 1 and the intermediate shaft 15 are connected to the wave wheel shaft 6 and the drainage shaft 5 through a speed reduction gear train disposed within the brake wheel 3. The brake wheel 3 is connected to the clutch shaft 2 at the bottom and to the dehydration shaft 4 rotatably provided outside the wave wheel shaft 6 at the top. The drainage shaft 5 is rotatably provided between the wave wheel shaft 6 and the dehydration shaft 4. The speed reduction gear train includes an input shaft gear provided at the top end of the input shaft 1, an internal gear ring 12 disposed around the input shaft gear, and planetary gears disposed between the input shaft gear and the internal gear ring 12 and meshing with the input shaft gear on the inner side and the internal gear ring 12 on the outer side. The planetary gears are rotatably mounted on a planet carrier 11. The planet carrier 11 is connected to the wave wheel shaft 6. The internal gear ring 12 is connected to the intermediate shaft 15 at the bottom and to the drainage shaft 5 at the top. A second elastic body 26 is provided between the lower clutch sleeve 13 and the housing 9. When the lower clutch sleeve 13 slides downward under an external force, the second elastic body 26 is configured to provide a restoring force to the lower clutch sleeve 13, so that the lower clutch sleeve 13 returns to its original position after the external force action ends. Oil-containing bearings for supporting lubrication and rotation are provided between the adjacent input shaft 1, intermediate shaft 15, and clutch shaft 2. A one-way bearing is provided between the clutch shaft 2 and the housing 9. A brake band is provided on the brake wheel 3. Oil-containing bearings for supporting lubrication and rotation are provided between the adjacent wave wheel shaft 6, drainage shaft 5, and dehydration shaft 4.

[0162] During the washing operation: When the lower clutch sleeve 13 slides upward on the clutch shaft 2 to the upper position, A disengages from the input shaft 1, B engages with the intermediate shaft 15, C engages with the housing 9, the dewatering shaft 4 and the drain shaft 5 are fixed, the input shaft 1 is in a free state. After the input power is decelerated by the gear train, it drives the agitator shaft 6 to rotate for washing.

[0163] During the draining operation: When the lower clutch sleeve 13 slides to the middle position on the clutch shaft 2, A disengages from the input shaft 1, B disengages from the intermediate shaft 15, C engages with the housing 9, the clutch shaft 2 is fixed, and the dewatering shaft integrated with the clutch shaft through the brake wheel 3 is also fixed. The input shaft 1 and the intermediate shaft 15 are in a free state, that is, the agitator shaft 6 connected to the planet carrier 11 is in a free state, and the drain shaft 5 connected to the intermediate shaft 15 through the internal gear ring 12 is also in a free state. However, the agitator shaft 6 remains in its original relatively stationary state due to the resistance from the entanglement of the clothes. Therefore, an increased torque after the deceleration of the gear train is obtained on the drain shaft 5, and the drain pan is opened for draining.

[0164] During the dewatering operation: When the lower clutch sleeve 13 slides downward on the clutch shaft 2 to the lower position, A engages with the input shaft 1, B disengages from the intermediate shaft 15, C disengages from the housing 9, the input shaft 1 and the clutch shaft 2 are combined into one body, the intermediate shaft is in a free state, and the agitator shaft 6 and the dewatering shaft 4 rotate together for dewatering.

[0165] Conversely, after dewatering, during washing, the drain shaft rotates in the reverse direction by an angle, and the drain pan and the washing tub rotate in the opposite direction relative to each other by an angle to close the switch.

[0166] As some embodiments of the present invention, the lower clutch sleeve 13 can slide axially to three positions: upper, middle, and lower under the action of an external pawl. The external pawl controls the axial movement of the pawl shaft to three positions: upper, middle, and lower through a lever fulcrum. One end of the external traction motor is connected to the pawl, and the other end of the fulcrum of the pawl is connected to the lower clutch sleeve 13.

[0167] Example 9, in combination with Figure 18 、 Figure 19, a water-saving washing machine speed reduction clutch is disclosed. The attached drawing is a schematic structural diagram of the single-clutch principle of a three-axis input and three-axis output of a second water-saving washing machine. It includes a wave wheel shaft 6 connected to the washing machine wave wheel, a dehydration shaft 4 placed outside the wave wheel shaft 6 and connected to the flange 8 of the water-saving washing barrel of the washing machine, and a drainage shaft 5 placed between the wave wheel shaft 6 and the dehydration shaft 4 and rotatably connected to a drainage tray 7 for draining water. The wave wheel shaft 6 is connected to the input shaft 1 through a speed reduction gear train placed inside a brake wheel 3. The upper part of the brake wheel 3 is integrally fixed to the dehydration shaft 4, and the lower part of the brake wheel 3 is integrally fixed to the clutch shaft 2. The clutch shaft 2 is rotatably placed outside the input shaft 1. An intermediate shaft 15 is provided between the clutch shaft 2 and the input shaft 1. The speed reduction gear train includes an input shaft gear provided at the top of the input shaft 1, an upper internal gear ring 1201 placed around the input shaft gear, an upper planetary gear placed between the input shaft gear and the upper internal gear ring 1201 and meshing with the input shaft gear on the inner side and the upper internal gear ring 1201 on the outer side. The upper planetary gear is rotatably installed on an upper planetary carrier 1101. The upper internal gear ring 1201 is connected to the clutch shaft 2 through a lower planetary carrier 1102. A rotatable lower planetary gear is provided on the lower planetary carrier 1102. The inner side of the lower planetary gear meshes with an intermediate shaft gear at the upper end of the intermediate shaft 15, and its outer side meshes with a lower internal gear ring 1202. The lower internal gear ring 1202 is connected to the drainage shaft 5. Bearings for supporting lubricated rotation are provided between the intermediate shaft 15 and the input shaft 1 and the clutch shaft 2 in pairs. Bearings for supporting lubricated rotation are provided between the drainage shaft 5 and the wave wheel shaft 6 and the dehydration shaft 4 in pairs. The clutch shaft 2, the dehydration shaft 4 and / or the brake wheel 3 are movably connected to the housing 9 through bearings and sealing rings. A lower clutch sleeve 13 for controlling the mutual conversion of washing, draining and dehydrating working conditions is provided between the intermediate shaft 15 and the clutch shaft 2 and the input shaft 1.

[0168] The lower clutch sleeve 13 is composed of two parts, an inner part and an outer part. The two parts can be rotatably connected to each other radially and integrally. The inner part is axially slidably installed on the intermediate shaft 15, and the outer part is axially slidably installed on the clutch shaft 2.

[0169] The lower clutch sleeve 13 has three positions: upper, middle and lower. The initial position is at the upper gear position (as shown in the figure). At this time, the outer part of the lower clutch sleeve 13 meshes with the housing 9 and remains stationary, that is, the clutch shaft 2 remains stationary. The inner part of the lower clutch sleeve 13 connected to the intermediate shaft also remains stationary under the action of an external force. The input shaft 1 is separated from the lower clutch sleeve 13. This is the connection state of the lower clutch sleeve 13 in the washing working condition.

[0170] At this time, when the lower clutch sleeve 13 moves downward to the neutral position under the action of an external force, the outer part of the lower clutch sleeve 13 still remains engaged with the housing 9 and does not move, but its inner part moves downward and combines with the input shaft 1. Since the inner and outer parts of the clutch sleeve can rotate relative to each other, under the action of the computer board program, the input shaft 1 and the intermediate shaft 15 rotate by an angle simultaneously. Under the action of the gear train, the drain shaft 5 is driven to rotate by an angle. At this time, the drain disk 7 and the flange 8 rotate relative to each other by an angle to fully open the drain holes. This is the connection state of the clutch sleeve during the drainage working condition.

[0171] When the lower clutch sleeve 13 slides downward further to the lower position under the action of an external force, its inner part is fully engaged with the input shaft 1, and its outer part disengages from the housing 9, connecting the clutch shaft 2, the intermediate shaft 15, and the input shaft 1 into a whole. This is the connection state during dehydration. When the dehydration ends, the lower clutch sleeve 13 returns to the neutral position under the action of an external force. The outer part of the lower clutch sleeve 13 remains engaged with the housing 9 and does not move, but its inner part is still combined with the input shaft 1. Since the inner and outer parts of the clutch sleeve can rotate relative to each other, under the action of the computer board program, the input shaft 1 and the intermediate shaft 15 rotate by an angle in opposite directions simultaneously. Under the action of the gear train, the drain shaft 5 is driven to rotate by an angle. At this time, the drain disk 7 and the flange 8 rotate relative to each other by an angle to fully close the drain holes. This is the connection state when the drain holes are closed.

[0172] When the lower clutch sleeve 13 returns to the initial position under the action of an external force, the outer part of the lower clutch sleeve 13 is fully engaged with the housing 9 and does not move, and its inner part is completely disengaged from the input shaft 1, returning to the connection state during the washing working condition.

[0173] During the washing working condition: Under the action of the lower clutch sleeve 13, the intermediate shaft 15 and the clutch shaft 2 remain stationary, and the input shaft 1 drives the upper planet carrier 1101 to rotate. The agitator shaft 6 connected to the upper planet carrier 1101 obtains a decelerated rotation to wash the clothes.

[0174] During the drainage working condition: Under the action of the lower clutch sleeve 13, the clutch shaft 2 remains stationary, and the intermediate shaft 15 and the input shaft 1 are connected as a whole. When a short-term power rotation is obtained on the input shaft 1, it drives the upper planet carrier 1101 to rotate and the lower internal gear ring 1202 to rotate in the opposite direction. Under the action of the reduction gear train, the drain shaft 5 obtains a decelerated and increased torque, driving the drain disk 7 to rotate. The drain holes on the drain disk 7 are communicated with the drain holes on the flange 8 to open the drain valve for drainage.

[0175] During the dehydration condition: Under the action of the lower clutch sleeve 13, the clutch shaft 2, the intermediate shaft 15 and the input shaft 1 are connected as a whole. When the input shaft 1 obtains a long-term power rotation, it drives the upper planet carrier 1101 to rotate, and the lower internal gear ring 1202 and the brake wheel 3 to rotate together. In this way, the dehydration shaft 4, the drainage shaft 5 and the agitator shaft rotate at high speed for dehydration.

[0176] Conversely, after dehydration, the lower internal gear ring 1202 rotates in the reverse direction by an angle during drainage, closing the drainage tray 7 and sealing the drainage holes on the drainage tray 7 and the drainage holes on the flange 8.

[0177] Embodiment 10, in combination with Figures 20 - 21 , discloses a three-axis input single-clutch device for a water-saving washing machine. The attached drawing is a schematic structural diagram of the single-clutch principle of a third water-saving washing machine with three-axis input and three-axis output. It includes an input shaft 1, a clutch shaft 2 movably installed in a housing 9, and an intermediate shaft 15 rotatably arranged between the input shaft 1 and the clutch shaft 2. A third clutch sleeve 30 is axially slidably connected to the input shaft 1. A first clutch sleeve 2 is axially slidably connected to the clutch shaft 2. A second clutch sleeve 29 is axially slidably connected to the intermediate shaft 15. The second clutch sleeve 29 is sleeved in the first clutch sleeve 2, and a spring 31 is provided in the inner cavity of the clutch shaft 2. A spring 31 is also provided between the first clutch sleeve 2 and the housing 9. Under the action of an externally provided claw, the first clutch sleeve 2 can axially slide in three positions: upper, middle, and lower. The upper position is the initial position. When in the upper-middle position, the first clutch sleeve 2 remains engaged with the housing 9 and is not engaged with the third clutch sleeve 30. When in the lower position, the first clutch sleeve 2 is separated from the housing 9 and engaged with the third clutch sleeve 30. The intermediate clutch sleeve is separated from the third clutch sleeve 30 when the first clutch sleeve 2 is in the upper position, and is engaged with the third clutch sleeve 30 when the first clutch sleeve 2 is in the middle and lower positions. The input shaft 1, the intermediate shaft 15 and the clutch shaft 2 are connected to the agitator shaft 6, the drainage shaft 5 and the dehydration shaft 4 at the output end through a reduction gear train. Among them, the clutch shaft 2 is directly connected to the dehydration shaft 4 through a brake wheel 3. The input shaft 1 is decelerated and drives the connection of the agitator shaft 6. The intermediate shaft 15 is decelerated and drives the connection of the drainage shaft 5. The drainage shaft 5 is connected to a drainage tray 7 for sealing drainage. The dehydration shaft 4 is connected to a flange 8 of the inner tub. An active rotary lubricating component is provided between the agitator shaft 6, the drainage shaft 5 and the dehydration shaft 4 connected to the agitator. The externally provided claw controls the axial movement of the claw in three positions: upper, middle, and lower through a lever fulcrum. One end of the claw connected to an external traction motor is pulled, and the other end of the claw at the fulcrum is connected to the first clutch sleeve 2.

[0178] The embodiment of the present invention also discloses a washing machine including the above three-axis input single-clutch device for a water-saving washing machine.

[0179] In the washing state, the first clutch sleeve 2 is in the initial position of the upper gear, the first clutch sleeve 2 remains engaged with the housing 9, the first clutch sleeve 2 and the second clutch sleeve 29 are not engaged with the third clutch sleeve 30, and the input shaft 1 and the third clutch sleeve 30 drive the agitator shaft 6 to rotate and wash clothes under the deceleration of the gear train.

[0180] In the draining state, under the action of the peripheral pawl, the first clutch sleeve 2 is in the middle gear position, the first clutch sleeve 2 still remains engaged with the housing 9, the first clutch sleeve 2 is not in contact with the lower clutch sleeve, that is, the dewatering shaft 4 does not move. However, at this time, the second clutch sleeve 29 moves downward under the action of the spring 31 and its own gravity and engages with the third clutch sleeve 30, and the intermediate shaft 15 rotates. Through the deceleration and torque increase of the gear train, it drives the draining shaft to rotate and opens the drain pan 7 to drain water.

[0181] In the dewatering state, under the continuous action of the peripheral pawl, the first clutch sleeve 2 is in the lower gear position and is separated from the housing 9. Together with the second clutch sleeve 29, they are both engaged with the third clutch sleeve 30, and the three shafts rotate simultaneously, driving the agitator shaft, the draining shaft and the dewatering shaft to rotate together for dewatering.

[0182] Conversely, when converting from the dewatering state to the washing state, the drain opening is closed.

[0183] As some embodiments of the present invention, the upper clutch device in the embodiments may include, but is not limited to, a clutch wheel, an upper clutch sleeve, a notch engagement pair, and a sector engagement pair. The lower lower clutch device adopts any one of the lower clutch sleeves in the above embodiments. Each technical feature and technical solution in the embodiments can be combined with each other to achieve three-axis output, two-axis or three-axis input, and adopt single-clutch or double-clutch control. Based on what can be achieved by those of ordinary skill in the art, when the combination of technical solutions is contradictory or cannot be achieved, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0184] The present invention also discloses a washing machine including any one of the above deceleration clutches.

[0185] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A water-saving washing machine speed reduction clutch, characterized in that: It includes an input end and an output end. The output end includes a wave wheel shaft (6) connected to the washing machine wave wheel, a dehydration shaft (4) disposed outside the wave wheel shaft (6) and connected to the flange of the water-saving washing barrel of the washing machine (8). The output end further includes a drain shaft (5). The drain shaft (5) is connected to a drain pan (7). The drain pan (7) can open or close a drain valve. The output end is connected to the input end through a gear train (27). The input end includes an input shaft (1). A clutch shaft (2) is disposed outside the input shaft (1). A lower clutch sleeve (13) is disposed between the input shaft (1) and the clutch shaft (2). The lower clutch sleeve (13) is configured to engage or disengage the input shaft (1) and the clutch shaft (2). The input end further includes an intermediate shaft (15). The intermediate shaft (15) is disposed between the input shaft (1) and the clutch shaft (2). The lower clutch sleeve (13) is configured to engage or disengage the input shaft (1), the intermediate shaft (15), and the clutch shaft (2). An intermediate shaft (15) and a clutch shaft (2) that rotate movably are sequentially provided on the outer periphery of the input shaft (1) from inside to outside. A drain shaft (5) and a dehydration shaft (4) that rotate movably are sequentially provided on the outer periphery of the wave wheel shaft (6) from inside to outside. A clutch device is disposed on the clutch shaft. The clutch device can slide up and down at three positions, namely, the upper, middle, and lower positions of the clutch shaft. The input shaft is output to the wave wheel shaft through a reduction gear train. The reduction gear train includes an input shaft gear disposed at the top of the input shaft, an internal gear ring disposed around the input shaft gear, and a planetary gear disposed between the input shaft gear and the internal gear ring and meshing with the input shaft gear on the inner side and the internal gear ring on the outer side. The planetary gear is rotatably mounted on a planet carrier. The planet carrier is connected to the wave wheel shaft. The internal gear ring is connected to the drain shaft. A notch engagement pair (14) is provided between the drainage shaft (5) and the dehydration shaft (4). An upper clutch sleeve (10) with sliding clutch is provided on the drainage shaft (5). The upper clutch sleeve (10) passes through a notch provided on the dehydration shaft (4). The agitator shaft (6) is connected to the input shaft (1) through a speed reduction gear train disposed within the brake wheel (3). The brake wheel (3) is integrally fixed to the dehydration shaft (4) at the upper part and integrally fixed to the clutch shaft (2) at the lower part. The clutch shaft (2) is rotatably disposed outside the input shaft (1). An intermediate shaft (15) that can rotate movably is provided between the clutch shaft (2) and the input shaft (1). A lower clutch sleeve (13) is provided on the clutch shaft (2) and the intermediate shaft (15). The lower clutch sleeve (13) is divided into two parts, an inner part and an outer part, which can rotate relative to each other. The inner and outer parts can slide on the intermediate shaft (15) and the clutch shaft (2) respectively. When the lower clutch sleeve (13) moves upward to the upper position, its inner part engages with the housing (9) and disengages from the input shaft (1), and its outer part disengages from the housing (9). When the lower clutch sleeve (13) is in the middle position, its inner part disengages from the housing (9) and the input shaft (1), and its outer part engages with the housing (9). When the lower clutch sleeve (13) moves downward to the lower position, both its inner and outer parts disengage from the housing (9), and its inner part engages with the input shaft (1). The engagement angle of the notch engagement pair (14) is 45 - 90 degrees. Axial sliding clutch is provided between the upper clutch sleeve (10) and the drainage shaft (5). Axial sliding fit is provided between the lower clutch sleeve (13) and the clutch shaft (2), the intermediate shaft (15) and the input shaft (1), and axial sliding fit is also provided between the lower clutch sleeve and the housing (9). During the washing operation: the dehydration shaft is locked, the clutch shaft is locked, and the input shaft (1) is in a free state; During the drainage operation: the dehydration shaft is locked, the clutch shaft is in a free state, and the input shaft (1) is also in a free state; During the dehydration operation: the dehydration shaft is in a free state, the clutch shaft is locked, and the input shaft (1) is locked.

2. A water-saving washing machine, characterized in that: The water-saving washing machine speed reduction clutch according to claim 1, during the washing operation, under the action of the clutch device, the clutch shaft (2) at the input end and the dehydration shaft (4) at the output end are clamped to the washing machine clutch housing (9) and remain stationary. The input shaft (1) is completely separated from the clutch device and is in a free state. It rotates bidirectionally under the action of the input power, and the power is transmitted through the gear train (27) to the agitator shaft (6) to wash the clothes. At this time, it is the washing operation. The clutch device includes the lower clutch sleeve (13) and / or the upper clutch device.

3. The water-saving washing machine according to claim 2, characterized in that: In the drainage working condition, under the action of an external force, the clutch shaft (2) of the clutch device is clamped and fixed with the housing of the washing machine clutch, and the drainage shaft (5) is in a free state under the connection of the gear train (27). The drainage shaft (5) can rotate by an angle under the power transmission of the gear train (27) to rotate the drainage disc (7) and open the drain valve; or the drainage shaft (5) meshes with the agitator shaft (6) under the action of the upper clutch device to form a whole, and the drainage shaft can rotate by an angle under the power transmission of the agitator shaft (6) to rotate the drainage disc (7) and open the drain valve.

4. The water-saving washing machine according to claim 3, characterized in that: In the dehydration working condition, the drainage shaft (5), the agitator shaft (6), and the dehydration shaft (4) at the output end can rotate together with the input shaft (1) and the clutch shaft (2) at the input end.

5. The water-saving washing machine according to claim 4, characterized in that: An intermediate shaft (15) is arranged between the input shaft (1) and the clutch shaft (2) at the input end. In the dehydration working condition, the intermediate shaft (15), the input shaft (1), and the clutch shaft (2) are meshed into a whole under the action of the lower clutch sleeve (13), and the drainage shaft (5), the agitator shaft (6), the dehydration shaft (4), the input shaft (1), the clutch shaft (2), and the intermediate shaft (15) can rotate at a high speed together to drain water.

6. The water-saving washing machine according to claim 5, characterized in that: After dehydration is completed, the drainage disc (7) returns to its original position, the drain valve is closed, and the drain hole is closed.

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