A three-output shaft clutch for washing machine

Abstract

A three-output shaft clutch for a washing machine, the clutch comprising: a pulsator shaft, a middle sleeve and an outer sleeve, wherein the pulsator shaft is connected to a clutch planetary carrier, the middle sleeve is connected to a brake wheel, and the outer sleeve is sleeved outside the middle sleeve. The lower end of the outer sleeve has a spline structure, and an upper clutch sleeve is sleeved thereon. The upper fixed sleeve is fixed on a clutch mounting plate, the upper movable sleeve is fixed on the brake wheel, and both ends of the upper clutch sleeve have uniformly distributed tooth structures, which are respectively engaged with the upper fixed sleeve and the upper movable sleeve. A washing machine using the clutch has a washing tub and a flange connected to the outer sleeve, a pulsator shaft connected to the pulsator, and a middle sleeve fixedly connected to a water sealing disk. One or more flange drain holes are provided on the flange, and the water sealing disk is provided with the same number of water sealing disk drain holes as the flange drain holes. The clutch state of the lower clutch sleeve and the upper clutch sleeve is achieved by external forces such as a traction motor. The overall structure has high reliability, and effectively realizes the water sealing and drainage functions of a water-saving and environmentally friendly washing machine.

Description

Technical Field

[0001] The invention relates to the technical field of a water-saving washing machine with a hole-free inner barrel, and in particular to a three-output shaft clutch of a washing machine. Background Art

[0002] In order to solve the water-saving and secondary pollution problems of fully automatic pulsator or drum washing machines, the industry has developed water-saving washing machines, i.e., hole-free washing drum washing machines. For example, the structure of a pulsator washing machine is that the lower part of the inner drum is designed as an integral whole, and only the part of the drum wall near the balance ring has a circle of water-spraying holes, and there are no holes in other parts. During the washing process, the inner drum of this structure washing machine contains water, and there is no water between the inner drum and the box body, which can solve the water-saving and secondary pollution problems; however, in the dehydration condition, water usually needs to be thrown to the wall of the inner drum, and the water rises along the wall of the inner drum under the action of centrifugal force to the water-spraying hole and flows out of the hole. Accelerating the water in the drum to a suitable centrifugal force requires a lot of electricity, so that the washing machine cannot meet the energy-saving requirements. How to effectively discharge the water in the inner drum is a technical problem that we currently need to solve. Summary of the invention

[0003] The basic purpose of the present invention is to provide a three-output shaft clutch for a washing machine. The washing machine using this clutch can achieve the sealing and discharge of water in a hole-free washing tub, so as to solve the technical problem of how to discharge water in such water-saving washing machines currently on the market.

[0004] A three-output shaft clutch for a washing machine, wherein the output end of the clutch is a three-shaft sleeve, comprising: a pulsator shaft, a middle shaft sleeve and an outer shaft sleeve, wherein the three shafts are movably mounted together through bearings and water seals and can rotate in a circumferential direction;

[0005] The lower end of the impeller shaft is connected to the planetary frame inside the brake wheel, and the upper part is connected to the impeller;

[0006] The lower end of the middle shaft sleeve is connected to the brake wheel, and the upper part thereof is connected to a water sealing disc;

[0007] The outer shaft sleeve is a shaft sleeve which is hollowly sleeved at the outermost end and is connected with the flange of the washing tub.

[0008] The outer shaft sleeve is provided with a spline groove, and an upper clutch sleeve is mounted thereon. The upper clutch sleeve can slide axially, and a circle of tooth structure is provided at each end of the upper clutch sleeve, which can respectively engage with an upper fixed sleeve fixed on the clutch mounting plate and an upper movable sleeve fixed on the brake wheel.

[0009] The input end of the clutch is composed of an input shaft and a lower sleeve that are fitted together. The lower sleeve also has a spline structure on the outside, on which the lower clutch sleeve is fitted. The lower fixed sleeve is fixed on the lower bearing support of the clutch, and the lower movable sleeve is fixedly connected to the input shaft. The upper and lower ends of the lower clutch sleeve each have a circle of tooth structures that can mesh with the lower fixed sleeve and the lower movable sleeve respectively.

[0010] The clutch mounting plate is provided with an upper shift fork rod. When the upper shift fork rod rotates around its rotating shaft under the action of the traction motor, it can shift the upper clutch sleeve to slide axially. When the upper clutch sleeve moves upward, it engages with the upper fixed sleeve, so that the outer sleeve is fixed. When the upper shift fork rod is separated from the upper clutch sleeve, the upper clutch sleeve moves downward along the axial direction under the action of gravity and the return spring, separates from the upper fixed sleeve and engages with the upper movable sleeve fixed on the brake wheel, so that the outer sleeve is connected to the brake wheel as a whole, so that the outer sleeve and the middle sleeve rotate together.

[0011] The clutch mounting plate is provided with a lower shift fork rod. When the lower shift fork rod rotates around its rotating shaft under the action of the traction motor, it can shift the lower clutch sleeve to slide axially. When the lower clutch sleeve moves up, it meshes with the lower fixed sleeve, so that the lower sleeve and the brake wheel are fixed. When the lower clutch sleeve moves down, the lower clutch sleeve is separated from the lower fixed sleeve and meshes with the lower movable sleeve, so that the lower sleeve and the brake wheel are connected to the input shaft.

[0012] Furthermore, in the washing machine using the three-output shaft clutch, the washing tub is sealed and fixedly connected to the flange, and the washing tub is a relatively closed structure, with only a circle of water-spraying holes at the upper part near the lower part of the balance ring.

[0013] Furthermore, the flange has one or more flange drain holes. When there are multiple flange drain holes, they are evenly distributed on a circle with the center of the flange as the center.

[0014] Furthermore, in the washing tub, a water sealing pan is arranged on the flange, and the water sealing pan is fixedly connected to the central shaft sleeve through a locking nut. The water sealing pan has the same number of water sealing pan drainage holes as the above-mentioned flange drainage holes, and the two have the same circumferential radius relative to the central axis. When in the drainage state, all the water sealing pan drainage holes can correspond to the flange drainage holes to achieve the drainage function.

[0015] During washing,

[0016] During the water intake and washing process, the upper fork lever is first used to move the upper clutch sleeve upwards and mesh with the upper fixed sleeve, thereby fixing the outer sleeve and the flange and washing bucket fixed thereto. The lower fork lever then moves the lower clutch sleeve to mesh with the lower movable sleeve, so that the input shaft and the lower sleeve are connected as one, realizing the integrated state of the wheel train in the brake wheel, so that the impeller shaft and the middle sleeve at the output end, as well as the impeller and the water sealing disk rotate together, and the frequency conversion motor drives the input shaft and the above-mentioned components to rotate through an angle, so that the flange drainage hole and the water sealing disk drainage hole are misaligned, realizing the water sealing state.

[0017] When the water sealing state is reached by sensing through position sensors or the like, the traction motor controls the lower shift fork rod to move the lower clutch sleeve upward, engaging with the lower fixed sleeve to fix the lower shaft sleeve and the brake wheel, middle shaft sleeve and water sealing plate connected thereto.

[0018] The washing machine starts to take in water, and the amount of water taken in is controlled by means of a flow meter or the like. When the preset amount of water is reached, it starts to enter the washing state. Since the upper clutch sleeve and the clutch sleeve are both in a fixed state, the power of the input shaft is transmitted to the impeller shaft and the impeller through the deceleration of the planetary gear system to achieve the washing state.

[0019] At the end of washing, the traction motor first drives the lower fork rod to move the lower clutch sleeve downward, disengage the lower fixed sleeve, and engage with the lower movable sleeve, so that the input shaft, the lower sleeve, the brake wheel, the middle sleeve and the water sealing disk are connected together. At this time, the upper clutch sleeve, the outer sleeve, the washing bucket, etc. are still in a fixed state. The variable frequency motor drives the input shaft, the lower sleeve, the brake wheel, the middle sleeve and the water sealing disk to rotate clockwise at an angle, and the position sensor controls the drainage hole of the water sealing disk to face the drainage hole of the flange for drainage.

[0020] When the drainage is finished, the traction motor pulls the upper fork rod to rotate, so that the upper clutch sleeve disengages from the upper fixed sleeve and engages with the upper movable sleeve, that is, the outer sleeve and the middle sleeve, as well as the impeller shaft become one. At this time, the frequency conversion motor rotates, driving the impeller, the water sealing plate, the washing tub and the flange to rotate together, realizing the dehydration state.

[0021] There are three states in the whole washing process.

[0022] The first state is that the upper clutch sleeve is meshed with the upper fixed sleeve, the lower clutch sleeve is meshed with the lower fixed sleeve, and then the lower sleeve, brake wheel, middle sleeve, and outer sleeve are all in a fixed state, and the washing bucket, flange, and water sealing plate are also stationary. When the motor drives the input shaft to rotate, it drives the impeller shaft and the impeller to reduce the speed through the planetary gear system. It is the washing state.

[0023] In the second state, the upper clutch sleeve is meshed with the upper movable sleeve, the lower clutch sleeve is meshed with the lower movable sleeve, and then the input shaft, the lower sleeve, the brake wheel, the middle sleeve, the outer sleeve and the impeller shaft are all integrated. When the motor rotates, it drives the impeller, the water sealing plate and the washing tub to rotate together, which is the dehydration state.

[0024] The third state is the switching state of the sealing and draining switch of the washing tub, that is, the upper clutch sleeve is engaged with the upper fixed sleeve, and the lower clutch sleeve is engaged with the lower movable sleeve. The overall state is that the outer sleeve, the washing tub and the flange are fixed, while the middle sleeve and the water sealing plate rotate together with the impeller, and rotate clockwise by an angle or counterclockwise by an angle under the drive of the motor to realize the conversion of the water sealing and discharge state in the washing tub.

[0025] Furthermore, one of the water sealing disk and the flange may not have a drainage hole, and the sealing and drainage states are switched by moving the flange up and down. The up and down movement of the flange is achieved by a spiral structure or a slope structure provided on the central sleeve when the central sleeve rotates.

[0026] Furthermore, the motor used in the washing machine is a variable frequency motor, and the rotation angle control and speed control are achieved through a position sensor.

[0027] During the transition between the water sealing and discharge states in the washing tub, position control is achieved through a position sensor.

[0028] Compared with the prior art, the advantages and beneficial effects of the present invention are as follows: the product of the present invention realizes the controllable switch function of the water in the washing tub through the three-output shaft clutch. It is closed when water is entering and washing, and opened when draining and dehydrating. Most of the washing water is drained away first, and then high-speed dehydration is performed. It is not only easy to control, but also has a small appearance, low cost, energy saving and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A three-output shaft clutch of a washing machine according to the present invention is a schematic diagram of the principle structure of the clutch;

[0030] Figure 2 A three-output shaft clutch of a washing machine according to the present invention is a schematic diagram of the principle structure of the washing machine;

[0031] Figure 3 This is the position relationship diagram of the flange and the water sealing pan in the drainage and dehydration states.

[0032] Figure 4 This is the position relationship diagram of the flange and water sealing plate in the water filling and washing state.

[0033] Figure 5 It is a spiral diagram showing the position relationship between the flange and the water sealing plate in the washing and water filling states.

[0034] Figure 6 This is a spiral diagram showing the position relationship between the flange and the water sealing plate in the drainage and dehydration states.

[0035] In the figure: outer barrel 1, balance ring 2, water throwing hole 3, washing barrel 4, impeller 5, impeller shaft 6, intermediate shaft 7, locking nut 8, water sealing plate drain port 9, water sealing plate 10, flange drain hole 11, flange 12, outer shaft sleeve 13, clutch mounting plate 14, upper fixed sleeve 15, upper clutch sleeve 16, upper movable sleeve 17, upper shift fork stem 18, brake wheel 19, lower shaft sleeve 20, lower fixed sleeve 21, lower clutch sleeve 22, lower shift fork rod 23, lower movable sleeve 24, motor rotor 25, input shaft 26, motor stator 27, lower bearing support 28. DETAILED DESCRIPTION

[0036] Example 1

[0037] The output end of the three-output shaft clutch is a three-shaft set together, including: the impeller shaft 6, the middle shaft sleeve 7 and the outer shaft sleeve 13 are movably mounted together through bearings and water seals, and can rotate freely in the circumferential direction.

[0038] The lower end of the impeller shaft 6 is connected to the inner planetary frame of the brake wheel 19, and the upper part is connected to the impeller 5;

[0039] The lower end of the middle sleeve 7 is connected to the brake wheel 19, and the upper part thereof is connected to a water sealing disc 10;

[0040] The outer sleeve 13 is a sleeve that is hollowly sleeved at the outermost end and is connected to the washing tub flange 12 .

[0041] The outer sleeve 13 is provided with a spline groove, on which an upper clutch sleeve 16 is mounted. The upper clutch sleeve 16 can slide axially. A circle of tooth structure is provided at each end of the upper clutch sleeve 16, which can respectively engage with an upper fixed sleeve 15 fixed on the clutch mounting plate 14 and an upper movable sleeve 17 fixed on the brake wheel 19.

[0042] The clutch mounting plate is provided with an upper fork rod 18. When the upper fork rod 18 rotates around its rotating shaft under the action of the traction motor, it can shift the upper clutch sleeve 16 to slide axially. When the upper clutch sleeve 16 moves upward, it engages with the upper fixed sleeve 15, so that the outer sleeve 16 is fixed. When the upper fork rod 18 is separated from the upper clutch sleeve 16, the upper clutch sleeve 16 moves downward along the axial direction under the action of gravity and the return spring, separates from the upper fixed sleeve 15 and engages with the upper movable sleeve 17 fixed on the brake wheel 19, so that the outer sleeve 13 and the middle sleeve 7 rotate together.

[0043] The input end of the clutch is composed of an input shaft 26 and a lower sleeve 20 which are sleeved together. The lower sleeve 20 also has a spline structure on the outside, and a lower clutch sleeve 22 is sleeved thereon, which can slide axially, while the lower fixed sleeve 21 is fixed on the lower bearing support 28 of the clutch, and the lower movable sleeve 24 is fixedly connected to the input shaft 26. The upper and lower ends of the lower clutch sleeve 22 each have a circle of tooth structures, which can be meshed with the lower fixed sleeve 21 and the lower movable sleeve 24 respectively.

[0044] The clutch mounting plate is provided with a lower fork rod 23. When the lower fork rod 23 rotates around its rotating shaft under the action of the traction motor, it can shift the lower clutch sleeve 22 to slide axially. When the lower clutch sleeve 22 moves up, it meshes with the lower fixed sleeve 21, so that the lower sleeve 20 and the brake wheel 19 are fixed. When the lower clutch sleeve 22 moves down, the lower clutch sleeve 22 is separated from the lower fixed sleeve 22 and meshes with the lower movable sleeve 24, so that the lower sleeve 20 and the brake wheel 19 are connected with the input shaft 26.

[0045] Furthermore, in the washing machine using the above three-output shaft clutch, the washing tub 4 is sealed and fixedly connected to the flange 12, and the washing tub 4 is a relatively closed structure, with only the upper part near the lower part of the balance ring 2 having a circle of water-spraying holes 3.

[0046] Further, the flange 12 has one or more flange drainage holes 11. When there are multiple flange drainage holes 11, they are evenly distributed on the circumference of a circle with the center of the flange as the center.

[0047] Furthermore, in the washing tub 4, a water sealing pan 10 is arranged on the flange 12, and the water sealing pan 10 is fixedly connected to the central shaft sleeve 7 through a locking nut 8. The water sealing pan 10 has the same number of water sealing pan drainage holes 9 as the flange drainage holes 11, and the two have the same circumferential radius relative to the central axis. When in the drainage state, all the water sealing pan drainage holes 9 can correspond to the flange drainage holes 11 to achieve the drainage function.

[0048] Working principle during washing process.

[0049] During the water intake and washing process, the upper fork rod 18 is first used to move the upper clutch sleeve 16 upwards and mesh with the upper fixed sleeve 15, thereby fixing the outer sleeve 13 and the flange 12 and the washing tub 4 fixed thereto. The lower fork rod 23 then moves the lower clutch sleeve 22 to mesh with the lower movable sleeve 24, so that the input shaft 26 and the lower sleeve 20 are connected as one, realizing the integrated state of the wheel train in the brake wheel, so that the impeller shaft 6 and the middle sleeve 7 at the output end, as well as the impeller 5 and the water sealing disk 10 rotate together, and the input shaft 26 and the above-mentioned components are driven by the variable frequency motor to rotate through an angle, so that the flange drain hole 11 and the water sealing disk drain hole 9 are misaligned, realizing the water sealing state, as shown in FIG. Figure 4As shown, the solid line is the pattern of the flange 12 and the flange drain hole 11, and the dotted line is the pattern of the water sealing disk 10 and the water sealing disk drain hole 9. At this time, the flange drain hole 11 and the water sealing disk drain hole 9 are offset by one position, so that the corresponding holes are completely separated.

[0050] When the water sealing state is reached by sensing through a position sensor or the like, the traction motor controls the lower fork rod 23 to move the lower clutch sleeve 22 upward, engaging with the lower fixed sleeve 21, fixing the lower shaft sleeve 20 and the brake wheel 19, the middle shaft sleeve 7 and the water sealing disk 10 connected thereto.

[0051] The washing machine starts to take in water, and the amount of water taken in is controlled by a flow meter or the like. When the preset amount of water is reached, the washing state begins. Since the upper clutch sleeve 16 and the clutch sleeve 23 are both in a fixed state, the power of the input shaft 26 is transmitted to the impeller shaft 6 and the impeller 5 through the deceleration of the planetary gear system to achieve the washing state.

[0052] At the end of washing, the traction motor first drives the lower fork rod 23 to move the lower clutch sleeve 22 downward, disengage the lower fixed sleeve 21, and engage with the lower movable sleeve 24, so that the input shaft 26, the lower sleeve 20, the brake wheel 19, the middle sleeve 7 and the water sealing disk 10 are connected together. At this time, the upper clutch sleeve 16, the outer sleeve 13, the washing tub 4, etc. are still in a fixed state. The variable frequency motor drives the input shaft 26, the lower sleeve 20, the brake wheel 19, the middle sleeve 7 and the water sealing disk 10 to rotate clockwise by an angle, and the position sensor controls the water sealing disk drain hole 9 to face the flange drain hole 11 for drainage. Figure 3 As shown, the solid line is the diagram of the flange 12 and the flange drain hole 11, and the dotted line is the diagram of the water sealing disk 10 and the water sealing disk drain hole 9. At this time, the flange drain hole 11 is directly opposite to the water sealing disk drain hole 9, and enters the drainage state.

[0053] When the drainage is finished, the traction motor pulls the upper fork rod 18 to rotate, so that the upper clutch sleeve 16 disengages from the upper fixed sleeve 15 and engages with the upper movable sleeve 17, that is, the outer sleeve 13 and the middle sleeve 7, as well as the impeller shaft 6 become one. At this time, the frequency conversion motor rotates, driving the impeller 5, the water sealing plate 10, the washing tub 4 and the flange 12 to rotate together, realizing the dehydration state.

[0054] There are three states in the whole washing process.

[0055] The first state is that the upper clutch sleeve 16 is meshed with the upper fixed sleeve, the lower clutch sleeve 22 is meshed with the lower fixed sleeve, and then the lower sleeve 20, the brake wheel 19, the middle sleeve 7, and the outer sleeve 13 are all in a fixed state, and the washing tub 4, the flange 12, and the water sealing plate 10 are also stationary. When the motor drives the input shaft 26 to rotate, the impeller shaft 6 and the impeller 5 are driven to rotate at a reduced speed through the planetary gear system. It is a washing state.

[0056] In the second state, the upper clutch sleeve 16 is meshed with the upper movable sleeve 17, the lower clutch sleeve 22 is meshed with the lower movable sleeve 24, and then, the input shaft 26, the lower sleeve 20, the brake wheel 19, the middle sleeve 7, the outer sleeve 13 and the impeller shaft 6 are all integrated. When the motor rotates, it drives the impeller 5, the water sealing plate 10 and the washing tub 4 to rotate together, which is the dehydration state.

[0057] The third state is the switching state of the sealing and draining switch of the washing tub 4, that is, the upper clutch sleeve 16 is engaged with the upper fixed sleeve 15, and the lower clutch sleeve 22 is engaged with the lower movable sleeve 24. The overall state is that the outer sleeve 13, the washing tub 4 and the flange 12 are fixed, while the middle sleeve 7 and the water sealing plate 10 rotate together with the impeller 5, and rotate clockwise by an angle or counterclockwise by an angle under the drive of the motor to realize the conversion of the water sealing and discharge state in the washing tub.

[0058] During the transition between the water sealing and discharge states in the washing tub, position control is achieved through a position sensor.

[0059] Embodiment 2. This type of three-output shaft clutch is similar to the above-mentioned clutch, and the lower part is the same, only the top of the middle sleeve 7 is a spiral structure, or a ramp structure, and the middle part of the water sealing disk 10 is also a spiral structure, or a structure corresponding to the ramp structure. A guide limit pin is also provided on the water sealing disk. When the middle sleeve 7 rotates an angle relative to the outer sleeve 13, the water sealing disk 10 cannot rotate due to the control of the guide limit pin, and can slide axially under the control of the middle spiral structure or ramp structure.

[0060] There is no drainage hole on the water sealing pan 10. When the water sealing pan 10 moves down, it is pressed against the flange surface, blocking the flange drainage hole 11 on the flange 12. At this time, the washing tub is in a closed state, and water can flow in and wash. When the water sealing pan 10 moves up, the water sealing pan 10 and the flange 12 are separated, and the water in the washing tub 4 enters the flange drainage hole 11 from the gap between the water sealing pan 10 and the flange 12, and then is discharged out of the washing tub.

[0061] There are also three states in the entire washing process.

[0062] The first state is that the upper clutch sleeve 16 is meshed with the upper fixed sleeve, the lower clutch sleeve 22 is meshed with the lower fixed sleeve, and then the lower sleeve 20, the brake wheel 19, the middle sleeve 7, and the outer sleeve 13 are all in a fixed state, and the washing tub 4, the flange 12, and the water sealing plate 10 are also stationary. When the motor drives the input shaft 26 to rotate, it drives the impeller shaft 6 and the impeller 5 to rotate at a reduced speed through the planetary gear system. It is the washing state. Figure 5 As shown, at this time, the water sealing plate 10 is pressed against the surface of the flange 12, sealing the flange drain hole 11 on the flange 12, and the washing tub is in a closed state.

[0063] In the second state, the upper clutch sleeve 16 is meshed with the upper movable sleeve 17, the lower clutch sleeve 22 is meshed with the lower movable sleeve 24, and then, the input shaft 26, the lower sleeve 20, the brake wheel 19, the middle sleeve 7, the outer sleeve 13 and the impeller shaft 6 are all integrated. When the motor rotates, it drives the impeller 5, the water sealing plate 10 and the washing tub 4 to rotate together, which is the dehydration state. Figure 6 As shown, at this time, the water sealing plate 10 is separated from the flange 12 by a certain distance, and the water in the washing tub 4 flows into the flange drainage hole 11 through the gap between the water sealing plate 10 and the flange 12, flows into the washing tub 40, the outer tub 1, and is discharged from the drainage hole at the bottom of the outer tub. When the drainage is completed and the dehydration state is entered, under the action of centrifugal force, the residual water in the clothes is thrown to the inner wall of the washing tub, and then moves up along the inner wall, and is thrown from the water throwing hole 3 at the top of the washing tub 4 into the outer tub 1, and then discharged from the drainage port at the bottom of the outer tub 1.

[0064] The third state is the water sealing and drainage switch switching state of the washing tub 4, that is, the upper clutch sleeve 16 is meshed with the upper fixed sleeve 15, and the lower clutch sleeve 22 is meshed with the lower movable sleeve 24. The overall state is that the outer sleeve 13, the washing tub 4 and the flange 12 are fixed, and the middle sleeve 7 rotates with the impeller 5. When the middle sleeve 7 rotates, the water sealing disc 10 mounted thereon cannot rotate under the action of the guide stop pin, but the water sealing disc 10 moves axially under the action of the spiral structure or inclined surface structure in the middle of the water sealing disc 10. For example, the inside of the water sealing disc 10 is a right-handed spiral. If the current state is the washing state, that is, the water sealing disc 10 is pressed on the upper surface of the flange 12, the variable frequency motor is started to rotate counterclockwise at a low speed for an angle, which drives the middle sleeve 10 to rotate. According to the above description, the water sealing disc moves axially upward for a certain distance, disengages from the flange 12, and opens the drainage channel. On the other hand, if it is in the dehydration state, that is, the water sealing disk 10 is a certain distance above the flange 12, it is in the dehydration and drainage state. At this time, the frequency conversion motor is started to rotate clockwise for a certain angle, which drives the middle shaft sleeve 10 to rotate clockwise for a certain distance. According to the above description, the water sealing disk 10 moves axially downward for a certain distance and presses on the flange 12 again. The water in the washing barrel is closed and turns into the washing and water intake state.

[0065] The rotation angle of the motor is controlled by a position sensor.

Claims

1. A three-output shaft clutch for a washing machine, characterized in that: The output end of the clutch is a three-shaft sleeve, comprising: a pulsator shaft (6), a middle shaft sleeve (7) and an outer shaft sleeve (13). The upper part of the impeller shaft (6) is connected to the impeller (5); The middle shaft sleeve (7) is connected to the brake wheel (19), and a water sealing disc (10) is connected to the upper part of the middle shaft sleeve (7); The outer sleeve (13) is a sleeve which is hollowly sleeved at the outermost end and is connected to the flange (12) of the washing tub; The outer shaft sleeve (13) is provided with a spline groove, and an upper clutch sleeve (16) is sleeved thereon. The upper clutch sleeve (16) can slide axially, and a circle of tooth structures are respectively provided at both ends of the upper clutch sleeve (16), which can respectively mesh with an upper fixed sleeve (15) fixed on the clutch mounting plate (14) and an upper movable sleeve (17) fixed on the brake wheel (19); The input end of the clutch is composed of an input shaft (26) and a lower sleeve (20) which are sleeved together. The lower sleeve (20) also has a spline structure on the outside, and a lower clutch sleeve (22) is sleeved thereon. The lower fixed sleeve (21) is fixed on the lower bearing support (28) of the clutch, and the lower movable sleeve (24) is fixedly connected to the input shaft (26). The lower and upper ends of the lower clutch sleeve each have a tooth structure, which can be meshed with the lower fixed sleeve (21) and the lower movable sleeve (24) respectively. An upper shift fork rod (18) and a lower shift fork rod (23) are arranged on the clutch mounting plate; when the upper shift fork rod (18) rotates around its rotating shaft, the upper clutch sleeve (16) can be shifted to slide axially; when the upper clutch sleeve (16) moves upward, it meshes with the upper fixed sleeve (15), so that the outer shaft sleeve (13) is fixed; when the upper clutch sleeve (16) moves downward, it meshes with the upper movable sleeve (17), so that the outer shaft sleeve (13) and the brake wheel are connected as a whole; When the lower fork rod (23) rotates around its rotation axis, the lower clutch sleeve (22) can be driven to slide axially. When the lower clutch sleeve (22) moves upward, it meshes with the lower fixed sleeve (21), so that the lower shaft sleeve (20) and the brake wheel are fixed; when the lower clutch sleeve (22) moves downward, it meshes with the lower movable sleeve (24), so that the lower shaft sleeve (20) and the brake wheel (19) are connected with the input shaft (26). The washing bucket (4) is sealed and fixedly connected to the flange (12). The washing bucket (4) is a relatively closed structure, and only the upper part close to the lower part of the balance ring (2) has a circle of water throwing holes (3); the flange (12) has one or more flange drainage holes (11), and the water sealing disk (10) is fixedly connected to the middle shaft sleeve (7); the water sealing disk (10) has a water sealing disk drainage hole (9), and the water sealing disk (10) and the flange (12) are rotated by a certain angle to achieve the correspondence or dislocation between the water sealing disk drainage hole (9) and the flange drainage hole (11), so as to realize the conversion of the open and closed state of water in the washing bucket (4).

2. The three-output shaft clutch of the washing machine according to claim 1, characterized in that: The upper shift fork rod (18) and the lower shift fork rod (23) are respectively controlled by different tractor motors, or by a double-stroke tractor motor.

3. The three-output shaft clutch of a washing machine according to claim 1 or 2, characterized in that: The water sealing disc (10) is fixedly connected to the central shaft sleeve (7) via a locking nut (8); the water sealing disc (10) has the same number of water sealing disc drainage holes (9) as the flange drainage holes (11), and the two have the same circumferential radius relative to the central axis. When in a drainage state, all the water sealing disc drainage holes (9) can correspond to the flange drainage holes (11).

4. The three-output shaft clutch of a washing machine according to claim 1 or 2, characterized in that: The motor used in the washing machine is a variable frequency motor, which uses a position sensor to control the rotation angle and speed.

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