CN109440392B

CN109440392B - Clothes treating apparatus

Info

Publication number: CN109440392B
Application number: CN201811457562.3A
Authority: CN
Inventors: 黄升野; 张玉
Original assignee: Wuxi Little Swan Electric Co Ltd
Current assignee: Wuxi Little Swan Electric Co Ltd
Priority date: 2018-11-30
Filing date: 2018-11-30
Publication date: 2021-04-20
Anticipated expiration: 2038-11-30
Also published as: CN109440392A

Abstract

The present invention discloses a laundry treating apparatus, comprising: an inner barrel defining a chamber; the supporting disc is arranged in the cavity; the rotatable impeller is arranged on the support plate; the driving device is connected with the impeller through a transmission shaft and is used for driving the impeller to rotate; the clutch device is switchable among a separation state, a first joint state and a second joint state, the impeller is allowed to rotate relative to the supporting disc when the clutch device is switched to the separation state, the impeller is allowed to drive the supporting disc to rotate towards the first direction together when the clutch device is switched to the first joint state, and the impeller is allowed to drive the supporting disc to rotate towards the second direction when the clutch device is switched to the second joint state. According to the clothes treatment equipment provided by the embodiment of the invention, the diversification of the motion of the impeller, the support disk and the inner drum can be realized, and the washing and rinsing effects of the clothes treatment equipment are improved.

Description

Clothes treating apparatus

Technical Field

The invention relates to the technical field of clothes treatment, in particular to clothes treatment equipment such as a pulsator washing machine.

Background

The impeller washing machine in the related technology adopts two independent connecting shafts to respectively drive the impeller and the inner barrel to rotate, and the separation and the connection of the two connecting shafts are realized through the clutch device, so that the operation mode that only the impeller rotates in the washing stage and the impeller and the inner barrel rotate together in the dehydration stage is realized, and the existing impeller washing machine cannot realize the operation mode when more operation modes are needed, such as the barrel bottom (supporting disk) needs to move up and down relative to the inner barrel. And current clutch structure is complicated for the control process is complicated, when this kind of clutch switches, leads to the card of internal part to die the problem easily, thereby influences normal work, seriously influences the use and experiences.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. To this end, an object of the present invention is to propose a laundry treating apparatus which is simpler in structure and easier to control.

A laundry treating apparatus according to an embodiment of the present invention includes: an inner barrel defining a chamber open at the top; the supporting disc is arranged in the cavity; a rotatable impeller disposed on a side of the support disk facing the opening of the chamber; the driving device is connected with the impeller through a transmission shaft and is used for driving the impeller to rotate; the clutch device is switchable among a separation state, a first engagement state and a second engagement state, the impeller is allowed to rotate relative to the support plate when the clutch device is switched to the separation state, the impeller is allowed to drive the support plate to rotate together in a first direction when the clutch device is switched to the first engagement state, and the impeller is allowed to drive the support plate to rotate in a second direction opposite to the first direction when the clutch device is switched to the second engagement state.

According to the clothes treatment equipment provided by the embodiment of the invention, the separation and the engagement of the impeller and the supporting disk can be realized by arranging the transmission shaft connected with the impeller and the clutch device capable of being switched among the separation state, the first engagement state and the second engagement state, so that the impeller can rotate relative to the supporting disk or drive the supporting disk to rotate in the first direction or the second direction together, the movement diversification of the impeller, the supporting disk and the inner barrel is realized, and the washing and rinsing effects of the clothes treatment equipment are improved.

According to one embodiment of the present invention, the propeller shaft includes: the driving device is connected with the first shaft to drive the first shaft to rotate; and the second shaft is respectively connected with the first shaft and the impeller so as to drive the impeller to rotate along with the first shaft, and the second shaft is slidable along the axial direction of the first shaft.

In some embodiments, the first shaft has a hollow cavity extending in an axial direction thereof, and the second shaft is inserted into the hollow cavity, wherein one of an inner circumferential wall of the first shaft and an outer circumferential wall of the second shaft has a sliding protrusion, and the other has a sliding groove fitted with the sliding protrusion.

In some embodiments, the sliding projection is provided on an outer circumferential wall of the second shaft and extends axially therealong, and the sliding groove is provided on an inner circumferential wall of the first shaft and extends axially therealong.

According to an embodiment of the present invention, the outer circumferential wall of the support plate and the inner circumferential wall of the inner cylinder are in sliding fit through a threaded structure, the inner cylinder is allowed to rotate together in a state where the support plate is rotated together by the pulsator in the first direction, and the support plate is allowed to move upward in the axial direction of the inner cylinder in a state where the support plate is rotated together by the pulsator in the second direction to raise the height of the support plate.

In some embodiments, the threaded structure includes a sliding groove formed in an outer peripheral wall of the support plate and a rib formed in an inner peripheral wall of the inner cylinder and slidably engaged with the sliding groove, wherein a portion of the peripheral wall of the inner cylinder is recessed into the chamber to form the rib on an inner surface of the peripheral wall of the inner cylinder and to form a groove on an outer surface of the peripheral wall of the inner cylinder.

According to one embodiment of the invention, the clutch device comprises: the driven part is arranged on the supporting disc and is provided with a plurality of driven teeth which are arranged at intervals, and each driven tooth is provided with a forward tooth surface and a reverse tooth surface, wherein the forward tooth surface is positioned on the same side, and the reverse tooth surface is arranged opposite to the forward tooth surface; the driving part is movably arranged on the impeller and is provided with a first driving tooth and a second driving tooth, and when the clutch device is switched to the separation state, the driving part and the driven part are arranged at intervals so as to separate the driving part and the driven part; in the clutch device switched to the first engaged state, the first driving tooth abuts against the forward tooth face to allow the driving member and the driven member to rotate together in the first direction; in the clutch device switched to the second engaged state, the second driving tooth abuts against the reverse tooth face to allow the driving member and the driven member to rotate together in the second direction.

In some embodiments, the clutch device further comprises: the driver is used for driving the driving part to rotate between a first position and a second position around a fixed axis, the driving part rotates to the state of the first position, the first driving tooth abuts against the forward tooth surface, the driving part rotates to the state of the second position, and the second driving tooth abuts against the reverse tooth surface.

In some embodiments, the initial position of the driving member is an intermediate position located between the first position and the second position and spaced apart from the driven member, and the clutch device further includes a return elastic member for returning the driving member from the first position or the second position to the initial position.

In some embodiments, the return spring is in a free state in a state where the active member is located at the initial position.

In some embodiments, the driver is a motor, and the return elastic member is a torsion spring sleeved on a motor shaft of the motor and connected to the driving member.

In some embodiments, the driven member is formed in a ring shape and the driven teeth are formed on an outer circumferential wall of the driven member, and the driving member is disposed outside the driven member.

In some embodiments, the driven member is a ratchet and the driving member is a pawl.

According to one embodiment of the invention, the laundry treatment apparatus has a washing phase, a dehydration phase and a lifting phase, the clutch device being switched to the disengaged state while the laundry treatment apparatus is in the washing phase; the clutching device switches to the first engaged state while the laundry treating apparatus is in the spin-drying phase; the clutch device is switched to the second engagement state to raise the height of the support tray when the laundry treating apparatus is in the lifting stage.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a laundry treating apparatus according to one embodiment of the present invention in a washing state;

fig. 2 is a schematic structural view of a laundry treating apparatus according to one embodiment of the present invention in a dehydrating state;

FIG. 3 is a schematic structural view of a laundry treating apparatus according to one embodiment of the present invention in a lifted state;

FIG. 4 is a schematic structural view of a drum of a fabric treating apparatus according to one embodiment of the present invention;

FIG. 5 is a cross-sectional view taken along line A-A shown in FIG. 4;

fig. 6 is a top view of a support tray of a laundry treating apparatus according to one embodiment of the present invention;

fig. 7 is a front view of a support tray of the laundry treating apparatus shown in fig. 6;

FIG. 8 is an assembly view of the clutch device and the driving device and the outer barrel and the inner barrel according to one embodiment of the present invention;

FIG. 9 is a cross-sectional view taken along line B-B shown in FIG. 8;

fig. 10 is an enlarged view of the portion C shown in fig. 9;

FIG. 11 is a top plan view of the switching assembly of the clutched device shown in FIG. 8;

FIG. 12 is a front view of a switching assembly of the clutched device shown in FIG. 11;

FIG. 13 is a schematic structural view of a mounting socket of the clutched device shown in FIG. 8;

FIG. 14 is a cross-sectional view taken along line D-D shown in FIG. 13;

FIG. 15 is an assembled view of the switching assembly and mounting block of the clutched device shown in FIG. 8;

FIG. 16 is a cross-sectional view taken along line E-E shown in FIG. 15;

FIG. 17 is a functional schematic of the clutched device shown in FIG. 8;

FIG. 18 is an assembly view of the clutch device and the driving device and the outer barrel and the inner barrel according to another embodiment of the present invention;

FIG. 19 is a front view of the structure shown in FIG. 18;

FIG. 20 is a cross-sectional view taken along line F-F of FIG. 19;

fig. 21 is an enlarged view of a portion G shown in fig. 20;

fig. 22 is a schematic structural view of the clutch device shown in fig. 18 when the laundry treating apparatus is in a washing state;

fig. 23 is a schematic structural view of the clutch device shown in fig. 18 when the laundry treating apparatus is in a dehydrating state;

fig. 24 is a schematic structural view of the clutch device shown in fig. 18 when the laundry treating apparatus is in a lifted state.

Reference numerals:

the laundry treating apparatus 100 is provided with a laundry treating device,

an inner barrel 11, a cavity 111, a convex rib 112, a groove body 113, an outer barrel 12,

the support plate 20, the recess 201, the slide groove 21,

the impeller 30, the water-stirring bulge 31,

the drive means (40) is arranged to,

a clutch device 50a (50b),

a mounting seat 51, a first matching groove 511, a second matching groove 512, a rotating bulge 513, a reversing inclined surface 5131, a transmission inclined surface 514, a transmission sleeve 515, a reversing sleeve 516, a support platform 517,

a switching assembly 52, a driving member 521a (521b), a first driving tooth 5211, a second driving tooth 5212, a protrusion 522, a lower mating inclined surface 5221, an upper mating inclined surface 5222, a ring-shaped member 523,

the follower 53a (53b), the follower 531, the forward tooth surface 5311, the reverse tooth surface 5312, the electromagnet 541, the magnet 542, the elastic member 55, the driver 56, the return elastic member 57, the base 58,

the transmission shaft 60, the first shaft 61, the hollow cavity 610, the sliding groove 611, the second shaft 62, the sliding protrusion 621,

and a seal 70.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

A laundry treatment apparatus 100 according to an embodiment of the present invention will be described with reference to fig. 1 to 24.

As shown in fig. 1 to 24, a laundry treating apparatus 100 according to an embodiment of the present invention includes: inner cylinder 11, support disc 20.

The inner drum 11 defines a chamber 111 with an open top, the support tray 20 is disposed in the chamber 111, and the support tray 20 is movable in the axial direction of the inner drum 11, and can lift the height of the laundry in the inner drum 11 when the support tray 20 moves upward in the axial direction of the inner drum 11. The outer peripheral wall of the support disc 20 is in sliding engagement with the inner peripheral wall of the inner barrel 11.

According to the clothes processing equipment 100 provided by the embodiment of the invention, the supporting plate 20 in sliding fit with the inner drum 11 is arranged, so that the supporting plate 20 can move in the axial direction of the inner drum 11, the height of the supporting plate 20 is increased, namely the height of clothes in the inner drum 11 is increased, a user does not need to bend down to take clothes, the use is very convenient, and the user experience is greatly improved.

As shown in fig. 4 to 7, according to one embodiment of the present invention, one of the outer peripheral wall of the support plate 20 and the inner peripheral wall of the inner cylinder 11 has a rib 112, and the other has a slide groove 21 slidably engaged with the rib 112.

For example, the outer peripheral wall of the support plate 20 has a rib 112, and the inner peripheral wall of the inner cylinder 11 has a slide groove 21; for another example, the outer peripheral wall of the supporting disk 20 has the sliding groove 21, the inner peripheral wall of the inner cylinder 11 has the rib 112, and the rib 112 and the sliding groove 21 are adopted for matching, so that the supporting disk 20 can be limited, and the sliding fit between the supporting disk and the sliding groove can be realized.

In some embodiments, as shown in fig. 4 and 5, the inner circumferential wall of the inner cylinder 11 has a rib 112, a portion of the circumferential wall of the inner cylinder 11 is recessed into the chamber 111 to form the rib 112 on the inner surface of the circumferential wall of the inner cylinder 11, and a groove 113 is formed on the outer surface of the circumferential wall of the inner cylinder 11, and for example, the groove 113 may be machined on the outer surface of the circumferential wall of the inner cylinder 11 by a punching process to form the rib 112 on the inner surface of the circumferential wall of the inner cylinder 11. As shown in fig. 7, the outer peripheral wall of the support tray 20 has a slide groove 21.

Accordingly, by providing the ribs 112 on the inner surface of the circumferential wall of the inner tub 11, the washing water and the laundry in the inner tub 11 can be agitated while achieving the sliding engagement with the support plate 20, thereby further improving the washing ratio of the laundry. Moreover, the supporting disc 20 can rotate in the inner cylinder 11 through the driving supporting disc 20, the supporting disc 20 can move in the axial direction of the inner cylinder 11, and the movement of the supporting disc 20 in the axial direction and the circumferential direction can be realized through a single driving device, so that the movement diversity of the supporting disc 20 is increased, the stirring effect of water flow is further improved, and the water flow stirring device is simple in structure and easy to realize.

In some alternative embodiments, the ribs 112 include a plurality of oblique ribs arranged at intervals, each extending in the same direction, and an imaginary connecting line of at least a part of the plurality of oblique ribs forms a spiral line, and the spiral line extends spirally along the central axis of the inner cylinder 11.

Correspondingly, the sliding groove 21 is also formed in a spiral shape, so that the sliding groove 21 and the rib 112 form a thread structure, the supporting disk 20 is in thread fit with the inner cylinder 11, and when the supporting disk 20 rotates relative to the inner cylinder 11, the supporting disk moves in the axial direction of the inner cylinder 11, so that the height of the supporting disk 20 in the inner cylinder 11 is adjusted.

In some examples, the plurality of oblique ribs are arranged in a plurality of rows and columns of rectangular arrays along the circumferential direction and the axial direction of the inner barrel 11, wherein, in any two adjacent rows and two columns of oblique ribs, the oblique rib in the row a and the row b is on the same spiral line with the oblique rib in the row a +1 and the row b + 1.

For example, as shown in fig. 5, when the peripheral wall of the inner cylinder 11 is expanded, it can be seen that the plurality of oblique ribs are arranged in a rectangular array of five rows and six columns, wherein, in the vertical direction, the imaginary connecting lines of the oblique ribs located in any one column of the first row and the oblique ribs located in the next column of the second row are on the same spiral line, and so on, the imaginary connecting lines of the oblique ribs located in any one column of the fourth row and the oblique ribs located in the next column of the fifth row are on the same spiral line, thereby realizing the threaded fit between the support plate 20 and the inner cylinder 11 and ensuring that the support plate 20 slides smoothly in the inner cylinder 11.

In some examples, the height of the inner surface of the peripheral wall of the inner drum 11 protruding from the two ends of each oblique rib is less than the height of the inner surface of the peripheral wall of the inner drum 11 protruding from the middle of the oblique rib, and the wall surfaces of the two ends of each oblique rib smoothly transition with the wall surface of the middle of the oblique rib, so that each oblique rib can smoothly slide into and out of the sliding groove 21, thereby preventing the occurrence of the jamming phenomenon and ensuring the normal operation of the laundry processing apparatus 100.

In other alternative embodiments, the ribs 112 are one or more helical ribs that extend helically upward along the central axis of the inner barrel 11.

For example, the rib 112 forms a spiral rib extending spirally upward along the central axis of the inner cylinder 11, i.e., the thread structure on the inner cylinder 11 is a single thread. For another example, the ribs 112 form a plurality of screw threads extending spirally upward along the central axis of the inner cylinder 11, that is, the thread structure on the inner cylinder 11 is a multi-thread, so as to reduce the friction between the inner cylinder 11 and the support disc 20, and facilitate the transmission of power and movement, that is, improve the transmission efficiency.

According to one embodiment of the present invention, the cross-section of the rib 112 forms a semi-circular arc. The cross section of the rib 112 forms a semi-circular arc shape, so that the rib 112 is well matched with the sliding groove 21, the friction force between the rib 112 and the sliding groove is reduced, the abrasion between the inner cylinder 11 and the supporting disk 20 is delayed or avoided, and the service life of the clothes treatment equipment 100 is prolonged.

According to one embodiment of the invention, the support disk 20 has a recess 201 on the side facing the opening of the chamber 111. As shown in fig. 6 and 7, a cavity with an upward opening is formed on the upper surface of the support plate 20 to facilitate the storage of clothes.

The laundry treating apparatus 100 according to a further embodiment of the present invention further includes: a rotatable pulsator 30 and a driving device 40, the driving device 40 being used for driving the pulsator 30 to rotate, the pulsator 30 being provided on a side of the supporting plate 20 facing the opening of the chamber 111, i.e., the pulsator 30 being provided on an upper surface of the supporting plate 20, the pulsator 30 moving in an axial direction of the inner drum 11 together with the supporting plate 20 when the supporting plate 20 moves in the axial direction of the inner drum 11.

In some embodiments, the pulsator 30 has a plurality of water stirring protrusions 31 spaced apart along a circumferential direction thereof on an upper surface thereof for stirring the washing water and the laundry in the drum 11, thereby enhancing a water current stirring effect and thus a washing effect of the laundry treating apparatus 100.

In some embodiments, the laundry treating apparatus 100 further includes a clutch device 50a (50b), and the clutch device 50a (50b) is switchable between a disengaged state and an engaged state.

When the clutch device 50a (50b) is switched to the disengaged state, the pulsator 30 is disengaged from the supporting plate 20, that is, the pulsator 30 may rotate with respect to the supporting plate 20; when the clutch device 50a (50b) is switched to the engaged state, the relative positions of the pulsator 30 and the supporting plate 20 are fixed, that is, the pulsator 30 can drive the supporting plate 20 to rotate together relative to the inner cylinder 11, and since the threaded structure can be adopted between the supporting plate 20 and the inner cylinder 11 for sliding fit, when the pulsator 30 drives the supporting plate 20 to rotate, the supporting plate 20 can drive the pulsator 30 to move in the axial direction of the inner cylinder 11.

Therefore, the inner barrel 11 and the support plate 20 are in sliding fit by adopting a threaded structure, and based on the structure, the clutch device 50a (50b) can be adopted to realize superposition of movement, so that the movement diversity of each part is increased, and the washing and rinsing effects of the clothes treatment equipment 100 are improved.

In a further embodiment, the laundry processing apparatus 100 further includes an outer tub 12, the inner tub 11 is disposed in the outer tub 12, when the laundry processing apparatus 100 is in a washing stage, the inner tub 11 does not rotate in the outer tub 12, when the laundry processing apparatus 100 is in a dewatering stage, the pulsator 30 may drive the supporting plate 20 and the inner tub 11 to rotate clockwise together, when the laundry processing apparatus 10 is in a lifting stage, the pulsator 30 may drive the supporting plate 20 to rotate counterclockwise together, so as to lift the height of the supporting plate 20 in the inner tub 11, so as to lift the laundry in the inner tub 11, and thus, the user can take out the laundry conveniently.

Some specific embodiments of the laundry treating apparatus 100 according to the present invention are described in detail below with reference to fig. 1 to 24.

As shown in fig. 1 to 17, a laundry treating apparatus 100 according to one embodiment of the present invention includes: inner cylinder 11, supporting disc 20, rotatable pulsator 30, driving device 40 and clutch device 50 a.

The inner cylinder 11 defines a chamber 111 with an open top, the support plate 20 is disposed in the chamber 111, and the pulsator 30 is disposed on one side of the support plate 20 facing the opening of the chamber 111, that is, the pulsator 30 is disposed on the upper side of the support plate 20. The driving device 40 is connected to the pulsator 30 through the driving shaft 60, and the driving device 40 is configured to drive the driving shaft 60 to rotate, so as to drive the pulsator 30 to rotate through the driving shaft 60.

Further, the clutch device 50a is switchable between a disengaged state and an engaged state, allowing the pulsator 30 to rotate relative to the supporting plate 20 when the clutch device 50a is switched to the disengaged state, and allowing the pulsator 30 to rotate with the supporting plate 20 when the clutch device 50a is switched to the engaged state.

According to the laundry treatment apparatus 100 of the embodiment of the present invention, by providing the transmission shaft connected to the pulsator 30 and the clutch device 50a switchable between the disengaged state and the engaged state, the disengagement and engagement of the pulsator 30 and the support plate 20 can be achieved, so that the pulsator 30 can rotate relative to the support plate 20 or drive the support plate 20 to rotate together, the diversification of the movement of the pulsator 30 and the support plate 20 is achieved, the stirring effect of the water flow is further improved, and the washing and rinsing effects of the laundry treatment apparatus 100 are improved.

According to one embodiment of the invention, the transmission shaft 60 comprises a first shaft 61 and a second shaft 62, the drive means 40 being connected to the first shaft 61 so as to drive the first shaft 61 in rotation. The second shaft 62 is connected to the first shaft 61 and the pulsator 30, respectively, i.e., the first shaft 61 is connected to the pulsator 30 through the second shaft 62, so that the pulsator 30 can be driven to rotate together with the first shaft 61 by the second shaft 62. Further, the second shaft 62 is slidable in the axial direction of the first shaft 61, so that the height of the pulsator 30 in the inner tub 11, and thus the height of the supporting plate 20 in the inner tub 11, can be changed.

In some embodiments, the first shaft 61 has a hollow cavity 610 extending along an axial direction thereof, and the second shaft 62 is inserted into the hollow cavity 610, wherein one of an inner peripheral wall of the first shaft 61 and an outer peripheral wall of the second shaft 62 has a sliding protrusion 621, and the other one has a sliding groove 611 matched with the sliding protrusion 621, and by providing the sliding protrusion 621 and the sliding groove 611 matched with each other, the second shaft 62 can be limited, and the sliding matching of the second shaft 62 and the first shaft 61 can be realized, so that the second shaft 62 can extend and retract in the first shaft 61.

In some embodiments, the sliding protrusion 621 is provided on the outer circumferential wall of the second shaft 62 and extends in the axial direction thereof, and the sliding groove 611 is provided on the inner circumferential wall of the first shaft 61 and extends in the axial direction thereof, whereby the second shaft 62 can be ensured to move in the axial direction of the first shaft 61, and the second shaft 62 can be prevented from rotating in the circumferential direction thereof, thereby ensuring the normal operation of the laundry treating apparatus 100.

As shown in fig. 3 and 9, in some embodiments, the bottom of the outer tub 12 is recessed inward to form a receiving area on the outer surface of the bottom of the outer tub 12, a portion of the driving device 40 is received in the receiving area and extends into the outer tub 12, a portion of the driving device 40 extending into the outer tub 12 forms a protruding ring, the first shaft 61 is connected with the driving device 40 and extends out of the protruding ring, the first shaft 61 and the protruding ring are respectively sleeved with a sealing member 70, so as to ensure the sealing connection therebetween, and when the supporting plate 22 is fastened to the bottom of the inner tub 11, the supporting plate 20 is also tightly combined with the sealing member 70, so as to ensure the sealing performance between the supporting plate 20 and the first shaft 61 and between the supporting plate 20 and the protruding ring.

According to an embodiment of the present invention, the outer circumferential wall of the supporting plate 20 and the inner circumferential wall of the inner cylinder 11 are in sliding fit through a threaded structure, so that the inner cylinder 11 is allowed to rotate together when the pulsator 30 drives the supporting plate 20 to rotate together in the first direction, that is, the pulsator 30 can drive the supporting plate 20 and the inner cylinder 11 to rotate together in the first direction; when the pulsator 30 rotates the support plate 20 together in a second direction opposite to the first direction, the support plate 20 is allowed to move upward in the axial direction of the inner cylinder 11 to raise the height of the support plate 20.

It should be noted that the first and second directions are related to the direction of rotation of the cooperating thread formation between the support disc 20 and the inner cylinder 11. For example, if the threaded structure of the mating between the supporting disk 20 and the inner cylinder 11 is a right-handed thread, the first direction is a clockwise direction, and the second direction is an anticlockwise direction, when the pulsator 30 drives the supporting disk 20 to rotate clockwise, the supporting disk 20 gradually approaches to the bottom of the inner cylinder 11 until the supporting disk rotates to the bottom of the inner cylinder 11, so as to achieve the fastening mating between the supporting disk 20 and the inner cylinder 11, and further drive the inner cylinder 11 to rotate clockwise together through the supporting disk 20; when the pulsator 30 drives the supporting plate 20 to rotate counterclockwise, the supporting plate 20 is gradually far away from the bottom of the inner tub 11. However, the threaded structure for the engagement between the support disk 20 and the inner cylinder 11 is left-handed threads, which can be understood by those skilled in the art and will not be described herein.

In some embodiments, the screw structure includes a sliding groove 21 and a rib 112 slidably engaged with the sliding groove 21, the sliding groove 21 is formed on an outer circumferential wall of the support plate 20, the sliding groove 21 is slidably engaged with the rib 112, the rib 112 is formed on an inner circumferential wall of the inner cylinder 11, wherein a portion of the circumferential wall of the inner cylinder 11 is recessed into the chamber 111 to form the rib 112 on an inner surface of the circumferential wall of the inner cylinder 11, and a groove 113 is formed on an outer surface of the circumferential wall of the inner cylinder 11.

For example, the groove 113 may be formed on the outer surface of the circumferential wall of the inner cylinder 11 by a punching process, thereby forming the rib 112 on the inner surface of the circumferential wall of the inner cylinder 11. By providing the ribs 112 on the inner surface of the peripheral wall of the inner tub 11, the washing water and the laundry in the inner tub 11 can be agitated while the sliding engagement with the support plate 20 is achieved, thereby increasing the washing ratio of the laundry.

According to an embodiment of the present invention, the clutch device 50a includes a mounting base 51, a switching assembly 52 and a driven member 53a, the mounting base 51 is disposed on the pulsator 30 and has a first latching portion and a second latching portion, the switching assembly 52 is switchably engaged with the first latching portion and the second latching portion, the switching assembly 52 includes a driving member 521a, and the driven member 53a is disposed on the support plate 20 and is adapted to be engaged with the driving member 521 a.

When the clutch device 50a is switched to the disengaged state, the switching assembly 52 is engaged with the first locking portion, so that the driving element 521a is disengaged from the driven element 53a, and the pulsator 30 can rotate relative to the supporting plate 20. When the clutch device 50a is switched to the engaged state, the switching assembly 52 cooperates with the second locking portion, so that the driving element 521a cooperates with the driven element 53a, and the relative position of the pulsator 30 and the supporting plate 20 is fixed, so that the pulsator 30 can drive the supporting plate 20 to rotate together.

The laundry treating apparatus 100 according to an alternative embodiment of the present invention has a washing stage, a dehydrating stage, and a lifting stage.

When the laundry treating apparatus 100 is in the washing stage, the clutch device 50a is switched to the separated state, so that the pulsator 30 may rotate with respect to the supporting plate 20 and the drum 11.

When the laundry processing apparatus 100 is in the dehydration stage, the clutch device 50a is switched to the engaged state, so that the pulsator 30 drives the support plate 20 to rotate together in the first direction, thereby reducing the height of the support plate 20, when the support plate 20 rotates to the bottom of the inner drum 11, the support plate 20 still has a tendency to move downward under the action of the ribs 112, and at this time, a large pressure is generated on the bottom of the inner drum 11, so that the support plate 20 and the inner drum 11 form a tight fit, which can drive the inner drum 11 to rotate together in the first direction. In some embodiments of the present invention, a driving block is disposed at the bottom of the supporting plate 20, and a matching block matched with the driving block is disposed at the bottom of the inner cylinder 11, so that the inner cylinder is driven by the driving block to rotate for dehydration after the supporting plate 20 descends, and thus, the pressure between the supporting plate 20 and the inner cylinder 11 can be reduced, and the damage of the two can be avoided.

When the laundry processing apparatus 100 is in the lifting stage, the clutch device 50a is switched to the engaged state, so that the pulsator 30 drives the support plate 20 to rotate together in a second direction opposite to the first direction, thereby increasing the height of the support plate 20, i.e. achieving the effect of lifting the laundry, and facilitating the user to take out the laundry.

According to the clothes treatment apparatus 100 of the embodiment of the invention, by the clutch device 50a which is switchable between the separation state and the engagement state, the separation and engagement of the pulsator 30 and the supporting plate 20 can be realized, so that the pulsator 30 can rotate relative to the supporting plate 20 or drive the supporting plate 20 to rotate together, the diversification of the movement of the pulsator 30 and the supporting plate 20 is realized, the normal operation of the clothes treatment apparatus 100 in the washing stage, the dehydration stage and the lifting stage is ensured, and the washing and rinsing effects and the use experience of the clothes treatment apparatus 100 are improved.

In some embodiments, the laundry treating apparatus 100 includes an outer tub 12, an inner tub 11, a support plate 20, a pulsator 30, a driving device 40, a clutch device 50a, and a transmission shaft 60. The outer peripheral wall of the support plate 20 is in sliding fit with the inner peripheral wall of the inner barrel 11 through a threaded structure, the impeller 30 is arranged on the upper surface of the support plate 20, and the driving device 40 is connected with the impeller 30 through a transmission shaft 60 so as to drive the impeller 30 to rotate.

The clutch device 50a is switched between a clutch state and an engagement state, the clutch device 50a comprises a mounting seat 51, a switching assembly 52 and a driven member 53a, the mounting seat 51 comprises a transmission sleeve 515 and a reversing sleeve 516 connected below the transmission sleeve 515, the inner peripheral wall of the transmission sleeve 515 is provided with a plurality of first matching grooves 511 and second matching grooves 512 which are staggered along the circumferential direction of the transmission sleeve 515 and are arranged at intervals, the depth of the first matching grooves 511 is smaller than that of the second matching grooves 512, the inner peripheral wall of the reversing sleeve 516 is provided with a rotating protrusion 513 positioned below the first matching grooves 511, and the upper surface of the rotating protrusion 513 forms a reversing inclined surface 5131.

The switching assembly 52 includes a ring member 523, an active member 521a disposed inside the ring member 523, and a protrusion 522 disposed outside the ring member 523, wherein a lower surface of the protrusion 522 forms a lower mating inclined surface 5221 and an upper surface forms an upper mating inclined surface 5222. The ring member 523, the driving member 521a, and the bump 522 are integrally injection molded by using the magnet 542 as an insert during processing. Furthermore, a mounting ring is arranged at the middle position of the bottom of the support plate 20, a driven part 53a is arranged on the outer peripheral wall of the mounting ring, and the support plate 20 is integrally injection-molded by taking the driven part 53a as an insert during processing.

When the laundry treating apparatus 100 operates the washing program, the protrusion 522 is located in the first fitting groove 511, the driving member 521a and the driven member 53a have a height difference, and maintain a separated state, the pulsator 30 can rotate clockwise and counterclockwise, and the inner drum 11 and the supporting plate 20 do not move.

When the clothes processing device 100 runs a dehydration program, the electromagnet 541 attracts the magnet 542 to drive the switching component 52 to move downwards, the bump 522 moves downwards and contacts with the reversing inclined plane 5131 of the rotating protrusion 513 in the process of moving downwards of the bump 522, the switching component 52 rotates under the action of the reversing inclined plane 5131, at the moment, the electromagnet 541 is powered off, and under the action of the elastic component 55, the switching component 52 moves upwards to enter the second matching groove 512, so that the driving component 521a and the driven component 53a are meshed with each other, and the impeller 30 drives the supporting plate 20 and the inner drum 11 to rotate clockwise together to realize dehydration.

When the lifting program is operated in the clothes processing device 100, the electromagnet 541 attracts the magnet 542 to drive the switching component 52 to move downwards, the bump 522 moves downwards and is in contact with the reversing inclined plane 5131 of the rotating protrusion 513 in the downward moving process of the bump 522, the switching component 52 rotates under the action of the reversing inclined plane 5131, the electromagnet 541 is powered off, and the switching component 52 moves upwards to enter the second matching groove 512 under the action of the elastic component 55, so that the driving component 521a and the driven component 53a are meshed with each other, the impeller 30 drives the supporting plate 20 to rotate anticlockwise to realize lifting action, the height of clothes in the inner drum 11 is further lifted, and a user does not need to bend over.

The laundry treating apparatus 100 according to another alternative embodiment of the present invention includes: the rotary pulsator comprises an inner cylinder 11, a supporting disc 20, a rotatable pulsator 30, a driving device 40 for driving the pulsator 30 to rotate, and a clutch device 50 a.

The inner cylinder 11 defines a chamber 111 with an open top, a supporting plate 20 is disposed in the chamber 111 and is movable in an axial direction of the inner cylinder 11, the pulsator 30 is disposed on the supporting plate 20 and moves with the supporting plate 20 in the axial direction of the inner cylinder 11, the clutch device 50a is switchable between a disengaged state and an engaged state, the pulsator 30 is allowed to rotate relative to the supporting plate 20 when the clutch device 50a is switched to the disengaged state, and the pulsator 30 is allowed to rotate with the supporting plate 20 when the clutch device 50a is switched to the engaged state.

Wherein, the laundry treating apparatus 100 is configured to control the clutch device 50a to be switched to the engaged state and to alternately move the pulsator 30 and the supporting plate 20 up and down in the axial direction of the drum 11 within a preset time of the washing stage.

According to the laundry treatment apparatus 100 of the embodiment of the present invention, the clutch device 50a switchable between the disengaged state and the engaged state is provided, so that the pulsator 30 and the support plate 20 can be disengaged and engaged, when the laundry treatment apparatus 100 is in a washing stage, the clutch device 50a is controlled to switch to the engaged state, so that the pulsator 30 drives the support plate 20 to rotate together in the first direction or the second direction, and the pulsator 30 and the support plate 20 move up and down alternately in the axial direction of the drum 11, so that the movement of the pulsator 30 and the support plate 20 can be diversified, thereby realizing a three-dimensional stirring effect of water flow, and improving the washing and rinsing effects and the use experience of the laundry treatment apparatus 100.

According to an embodiment of the present invention, the outer circumferential wall of the support plate 20 is slidably engaged with the inner circumferential wall of the inner cylinder 11 through a threaded structure, allowing the support plate 20 to move downward in the axial direction of the inner cylinder 11 when the pulsator 30 rotates the support plate 20 together in a first direction, thereby reducing the height of the support plate 20, and allowing the support plate 20 to move upward in the axial direction of the inner cylinder 11 when the pulsator 30 rotates the support plate 20 together in a second direction opposite to the first direction, thereby increasing the height of the support plate 20.

That is, by using the threaded structure to slidably fit the support plate 20 and the inner cylinder 11, when the clutch device 50a is switched to the engaged state and the driving device 40 drives the pulsator 30 to rotate, the pulsator 30 can drive the support plate 20 to rotate, and at the same time, the support plate 20 can be driven to move in the axial direction of the inner cylinder 11, so that the movement of the pulsator 30 and the support plate 20 is diversified by one driving device 40, thereby achieving the three-dimensional stirring effect of the water flow.

In some embodiments, the screw structure includes a sliding groove 21 formed at the outer circumferential wall of the support plate 20 and a rib 112 formed at the inner circumferential wall of the inner cylinder 11, the sliding groove 21 being slidably fitted with the rib 112, wherein a portion of the circumferential wall of the inner cylinder 11 is recessed into the cavity 111 to form the rib 112 on the inner surface of the circumferential wall of the inner cylinder 11, and a groove 113 is formed on the outer surface of the circumferential wall of the inner cylinder 11. Accordingly, by providing the ribs 112 on the inner surface of the circumferential wall of the inner tub 11, the washing water and the laundry in the inner tub 11 can be agitated while the sliding engagement with the support plate 20 is achieved, thereby increasing the washing ratio of the laundry.

In some alternative embodiments, the first direction is clockwise and the thread formation is a right-hand thread.

When the clutch device 50a is switched to the engaged state, if the pulsator 30 drives the supporting plate 20 to rotate together in the clockwise direction, since the inner cylinder 11 and the supporting plate 20 are in sliding fit with a right-handed thread structure, when the supporting plate 20 rotates clockwise, it gradually moves in a direction of screwing into the inner cylinder 11, i.e., moves downward relative to the inner cylinder 11. If the pulsator 30 drives the support plate 20 to rotate along the counterclockwise direction, since the inner cylinder 11 and the support plate 20 adopt the right-handed thread structure for sliding fit, when the support plate 20 rotates counterclockwise, it gradually moves towards the direction of screwing out the inner cylinder 11, i.e. moves upwards relative to the inner cylinder 11, thereby realizing the movement of the support plate 20 and the pulsator 30 in the axial direction of the inner cylinder 11, and realizing the three-dimensional stirring effect of water flow.

It can be understood that when the clutch device 50a is switched to the engaged state, if the support plate 20 rotates to the bottom of the inner cylinder 11, the support plate 20 can be tightly fitted to the inner cylinder, so that the support plate 20 can drive the inner cylinder 11 to rotate clockwise.

In other alternative embodiments, the first direction is counterclockwise and the thread form is left-handed. The threaded structure between the support disc 20 and the inner cylinder 11 is a movement form of left-hand thread, which can be understood by those skilled in the art and will not be described herein.

The clutch device 50a according to the embodiment of the present invention will be described in detail with reference to fig. 1 to 17.

As shown in fig. 1 to 17, a clutch device 50a according to an embodiment of the present invention includes a mount 51, a switching assembly 52, and a follower 53 a. The mounting base 51 has a first engaging portion and a second engaging portion. The switching assembly 52 is switchably engaged with the first latching portion and the second latching portion, and the switching assembly 52 includes an active member 521 a. The driven member 53a is adapted to mate with the driving member 521 a.

Wherein, the clutch device 50a is configured to be switchable between a disengaged state and an engaged state, when the clutch device 50a is switched to the disengaged state, the switching component 52 cooperates with the first blocking portion, so that the driving element 521a is separated from the driven element 53a, i.e. the transmission of power and motion between the driving element 521a and the driven element 53a cannot be realized; when the clutch device 50a is switched to the engaged state, the switching member 52 is engaged with the second detent portion, so that the driving member 521a is engaged with the driven member 53a, i.e., the driving member 521a can transmit power and motion to the driven member 53 a.

According to the clutch device 50a of the embodiment of the invention, the first clamping portion and the second clamping portion are arranged on the mounting seat 51, so that the switching assembly 52 can be in switchable fit with the first clamping portion and the second clamping portion, and the separation and the engagement of the driving part 521a and the driven part 53a are realized.

As shown in fig. 9 to 17, according to an embodiment of the present invention, the heights of the first latching portion and the second latching portion are different, and when the switching assembly 52 is engaged with the first latching portion, the heights of the driving member 521a and the driven member 53a are not flush, so that the driving member 521a and the driven member 53a are separated, and power and motion cannot be transmitted between the driving member 521a and the driven member 53 a; when the switching assembly 52 is engaged with the second locking portion, the driving member 521a is flush with the driven member 53a, so that the driving member 521a is engaged with the driven member 53a, and at this time, the driving member 521a can transmit power and motion to the driven member 53 a.

According to an embodiment of the present invention, the first catching portion forms a first fitting groove 511 with a downward facing groove opening, the second catching portion forms a second fitting groove 512 with a downward facing groove opening, the notch of the first fitting groove 511 is flush with the notch of the second fitting groove 512, and the depth of the first fitting groove 511 is smaller than the depth of the second fitting groove 512.

The switching assembly 52 is provided with a projection 522, the projection 522 can be in sliding fit with any one of the first fitting groove 511 and the second fitting groove 512, when the clutch device 50a is switched to the separated state, the projection 522 is matched with the first fitting groove 511, and when the clutch device 50a is switched to the engaged state, the projection 522 is matched with the second fitting groove 512.

Since the depth of the first fitting groove 511 is smaller than that of the second fitting groove 512, when the protrusion 522 is fitted into the first fitting groove 511 and the second fitting groove 512, respectively, the protrusion 522 is located at a different height, so that the height of the driving member 521a relative to the driven member 53a is changed, and the separation and fitting of the driving member 521a and the driven member 53a are realized.

As shown in fig. 11 to 17, in some embodiments, the first fitting groove 511 and the second fitting groove 512 respectively include a plurality of first fitting grooves 511 and a plurality of second fitting grooves 512 arranged alternately and at intervals along a circumferential direction of an imaginary circle. Wherein the angle between any adjacently disposed first and second

fitting grooves

511 and 512 may be set to be the same.

That is, in the circumferential direction of the imaginary circle, one second fitting groove 512 is provided between any adjacent two of the first fitting grooves 511, and one first fitting groove 511 is provided between any adjacent two of the second fitting grooves 512. By arranging the plurality of first fitting grooves 511 and the plurality of second fitting grooves 512 alternately and at intervals in the circumferential direction of an imaginary circle, the alternate switching of the disengaged state and the engaged state of the clutch device 50a can be achieved.

In some embodiments, as shown in fig. 14 and 17, the mounting seat 51 further has a rotation protrusion 513 below the notch of the first and/or second

fitting grooves

511 and 512, a side of the rotation protrusion 513 facing the notch of the first fitting groove 511 has a reverse inclined surface 5131, the reverse inclined surface 5131 is gradually inclined downward from the first fitting groove 511 to the second fitting groove 512, a lower mating inclined surface 5221 is formed on a lower surface of the protrusion 522, and the lower mating inclined surface 5221 corresponds to an inclination of the reverse inclined surface 5131.

Specifically, as shown in fig. 17, the switching member 52 can slide along the length direction of the first engagement groove 511, and when the protrusion 522 slides out of the first engagement groove 511 and stops against the rotation protrusion 513, the lower engagement inclined surface 5221 of the protrusion 522 slidably engages with the reverse inclined surface 5131 of the rotation protrusion 513, so that the protrusion 522 of the switching member 52 moves toward the second engagement groove 512.

Further, the mounting seat 51 is disposed in a sleeved manner with the switching assembly 52, and when the switching assembly 52 is in switching engagement with the first engagement groove 511 and the second engagement groove 512, the switching assembly 52 rotates relative to the mounting seat 51 under the sliding engagement between the reversing inclined surface 5131 and the lower engagement inclined surface 5221.

That is, when the projection 522 of the switching member 52 slides out of the first fitting groove 511, the projection 522 of the switching member 52 rotates toward the second fitting groove 512 side by the sliding fit of the lower fitting inclined surface 5221 of the projection 522 and the reverse inclined surface 5131 of the rotating projection 513; when the protrusion 522 of the switching assembly 52 slides out of the second matching groove 512, under the sliding fit of the lower matching inclined surface 5221 of the protrusion 522 and the reversing inclined surface 5131 of the reversing protrusion of the rotating protrusion 513, the protrusion 522 of the switching assembly 52 rotates towards one side of the first matching groove 511, so that the switching fit of the switching assembly 52 with the first matching groove 511 and the second matching groove 512 is realized, and the separation and the fit of the driving part 521a and the driven part 53a are further realized.

In some embodiments, the mounting seat 51 is sleeved outside the switching element 52, the protrusion 522 is disposed on an outer side wall of the switching element 52, and the first and second

fitting grooves

511 and 512 are disposed on an inner side wall of the mounting seat 51.

In a further embodiment, the switching assembly 52 further includes a ring member 523, the protrusion 522 is disposed on an outer side wall of the ring member 523, and the driving member 521a is disposed on an inner side wall of the ring member 523.

For example, as shown in fig. 12, the switching assembly 52 includes a ring member 523, a driving member 521a, and a plurality of protrusions 522, wherein the driving member 521a is disposed on an inner sidewall of the ring member 523, the plurality of protrusions 522 are disposed on an outer sidewall of the ring member 523, the plurality of protrusions 522 are spaced in a circumferential direction of the ring member 523, and are staggered in a height direction of the ring member 523, so that a height of one portion of the plurality of protrusions 522 is higher than that of another portion.

As shown in fig. 14, 16-17, according to an embodiment of the present invention, the mounting seat 51 includes a driving sleeve 515 and a reversing sleeve, the driving sleeve 515 forms a ring shape, the first and second

fitting grooves

511 and 512 are arranged at intervals along a circumferential direction of the driving sleeve 515 on an inner side wall of the driving sleeve 515, the reversing sleeve forms a ring shape, and the reversing sleeve is connected below the driving sleeve 515, and the rotating protrusion 513 is provided on the inner side wall of the reversing sleeve. The central axis of the transmission sleeve 515 and the central axis of the reversing sleeve can be collinear, and the structure is simple and the connection is convenient.

In some embodiments, a driving inclined surface 514 is formed between the notch of the first fitting groove 511 and the notch of the second fitting groove 512, the driving inclined surface 514 gradually extends upward from the first fitting groove 511 to the second fitting groove 512, an upper surface of the protrusion 522 forms an upper fitting inclined surface 5222, and the upper fitting inclined surface 5222 is consistent with the inclination of the driving inclined surface 514.

When the clutch device 50a is switched from the disengaged state to the engaged state, the protrusion 522 is switched from the first engagement groove 511 to the second engagement groove 512, and the upper engagement inclined surface 5222 of the protrusion 522 can be in sliding engagement with the transmission inclined surface 514 and then slide into the second engagement groove 512, so that the protrusion 522 is engaged with the second engagement groove 512, and further, the driving member 521a is engaged with the driven member 53 a.

According to an embodiment of the present invention, the clutch device 50a further includes a driving member for driving the switching member 52 to slide along the length direction of the first or second engaging

groove

511, 512, so that the protrusion 522 is disengaged from the first or second engaging

groove

511, 512.

Specifically, when the protrusion 522 of the switching assembly 52 is engaged with the first engaging slot 511, the driving member may drive the switching assembly 52 to move downward along the length direction of the first engaging slot 511, so that the protrusion 522 slides out of the first engaging slot 511; when the protrusion 522 of the switch assembly 52 is engaged with the second engaging slot 512, the driving member can drive the switch assembly 52 to move downward along the length direction of the second engaging slot 512, so that the protrusion 522 slides out of the second engaging slot 512, and the driving member can provide power for the sliding of the switch assembly 52.

As shown in fig. 9-10 and 16, according to an embodiment of the present invention, the driving member includes an electromagnet 541 and a magnet 542 adapted to be attracted by the electromagnet 541, wherein the electromagnet 541 is disposed below the mounting seat 51, the magnet 542 is disposed on the switching member 52, and when the electromagnet 541 is energized, the switching member 52 is driven to slide along the length direction of the first or second engaging

groove

511, 512 by attracting the magnet 542.

When the protrusion 522 of the switching member 52 is engaged with the first engaging groove 511, if the electromagnet 541 is energized, the magnet 542 is attracted, so that the switching member 52 moves downward along the length direction of the first engaging groove 511, and the protrusion 522 slides out of the first engaging groove 511. When the protrusion 522 of the switching member 52 is engaged with the second engaging groove 512, the electromagnet 541 is energized to attract the magnet 542, so that the switching member 52 moves downward along the length direction of the second engaging groove 512, and the protrusion 522 slides out of the second engaging groove 512.

In some embodiments, the clutch device 50a further includes an elastic member 55, the mounting seat 51 has a supporting seat 517, and the elastic member 55 is disposed between the supporting seat 517 and the switching assembly 52, so as to achieve positioning and mounting of the elastic member 55.

Wherein the switching member 52 slides into the other one of the first and second

fitting grooves

511 and 512 from a position separated from the one of the first and second

fitting grooves

511 and 512 by the elastic member 55.

Specifically, when the protrusion 522 of the switching member 52 is engaged with the first engaging groove 511, if the electromagnet 541 is energized, the magnet 542 is attracted, so that the switching member 52 moves downward along the length direction of the first engaging groove 511, and the protrusion 522 slides out of the first engaging groove 511. In addition, under the sliding fit between the lower engagement inclined surface 5221 of the protrusion 522 and the reversing inclined surface 5131 of the reversing protrusion of the rotating protrusion 513, the protrusion 522 of the switching assembly 52 rotates toward the second engagement groove 512, when the protrusion 522 of the switching assembly 52 rotates to a position facing the notch of the second engagement groove 512, the power supply is stopped, the switching assembly 52 slides along the second engagement groove 512 under the action of the elastic member 55, so that the protrusion 522 is engaged with the second engagement groove 512, that is, the clutch device 50a is switched to the engaged state.

When the protrusion 522 of the switching member 52 is engaged with the second engaging groove 512, if the electromagnet 541 is energized, the magnet 542 is attracted, so that the switching member 52 moves downward along the length direction of the second engaging groove 512, and the protrusion 522 slides out of the second engaging groove 512, and further, under the sliding engagement between the lower engaging inclined surface 5221 of the protrusion 522 and the reversing inclined surface 5131 of the reversing projection of the rotating projection 513, the protrusion 522 of the switching member 52 rotates toward the first engaging groove 511, and when the protrusion 522 of the switching member 52 rotates to a position facing the notch of the first engaging groove 511, the energization is stopped, and the switching member 52 slides along the first engaging groove 511 under the action of the elastic member 55, so that the protrusion and the first engaging groove 511 are engaged, that is, the clutch device 50a is switched to the disengaged state.

According to one embodiment of the present invention, the driving member 521a and the driven member 53a are both gears or ratchets. For example, the driven member 53a is a driven gear 531 provided on the supporting plate 20, and the driving member 521a is a driving gear provided in the pulsator 30; for another example, the follower 53a is a follower ratchet wheel provided on the supporting plate 20, and the driving element 521a is a driving ratchet wheel provided in the pulsator 30.

When the driving member 521a is separated from the driven member 53a, the driving member 521a and the driven member 53a cannot be engaged with each other, and thus cannot transmit power and motion, so that the pulsator 30 can rotate relative to the supporting plate 20; when the driving member 521a and the driven member 53a are engaged with each other, the driving member 521a can transmit the motion and power thereof to the driven member 53a, so that the pulsator 30 can rotate the support plate 20.

The laundry treating apparatus 100 according to the embodiment of the present invention includes the clutch device 50a according to the above-described embodiment.

Since the clutch device 50a according to the embodiment of the present invention has the above technical effects, the laundry treating apparatus 100 according to the embodiment of the present invention also has the above technical effects, that is, by providing the first latching portion and the second latching portion on the mounting seat 51, the switching component 52 can be switchably engaged with the first latching portion and the second latching portion, so as to realize the separation and engagement of the driving member 521a and the driven member 53a, and applying the clutch device 50a to the laundry treating apparatus 100, various working forms of the laundry treating apparatus 100 can be realized, and the working requirements of the laundry treating apparatus 100 can be met.

In some embodiments, the laundry treating apparatus 100 further includes an inner drum 11, a supporting plate 20 and a rotatable pulsator 30, the inner drum 11 defines a chamber 111 with an open top, the supporting plate 20 is disposed in the chamber 111 and is movable in an axial direction of the inner drum 11 for lifting a height of laundry in the inner drum 11, the pulsator 30 is disposed on a side of the supporting plate 20 facing the opening of the chamber 111, and the pulsator 30 is movable in the axial direction of the inner drum 11 together with the supporting plate 20, a mount 51 and a switching assembly 52 are provided to the pulsator 30, and a follower 53a is provided to the supporting plate 20.

Thus, by providing the clutch device 50a switchable between the disengaged state and the engaged state in the laundry treating apparatus 100, the impeller 30 and the supporting plate 20 may be disengaged and engaged, so that the impeller 30 may rotate relative to the supporting plate 20 or rotate the supporting plate 20 together, diversification of the motion of the impeller 30 and the supporting plate 20 is achieved, and washing and rinsing effects of the laundry treating apparatus 100 are improved.

As shown in fig. 10, in some embodiments, the support plate 20 has a mounting ring protruding upward at a middle position of the bottom thereof, the mounting ring defines a mounting passage extending in the axial direction of the inner cylinder 11, the drive shaft 60 is inserted into the mounting passage to be connected to the pulsator 30, and the follower 53a is provided on the outer peripheral wall of the mounting ring. Further, the outer peripheral wall of the mounting ring is further provided with a limiting step extending along the circumferential direction of the mounting ring, and the mounting seat 51 is sleeved on the mounting ring and located on the outer side of the limiting step.

As shown in fig. 18 to 24, a laundry treating apparatus 100 according to another embodiment of the present invention includes: inner cylinder 11, supporting disc 20, rotatable pulsator 30, driving device 40 and clutch device 50 b.

The inner drum 11 defines a chamber 111 with an open top, the support plate 20 is disposed in the chamber 111, the pulsator 30 is disposed on one side of the support plate 20 facing the opening of the chamber 111, that is, the pulsator 30 is disposed on the upper side of the support plate 20, the driving device 40 is connected to the pulsator 30 through the transmission shaft 60, and the driving device 40 is used for driving the pulsator 30 to rotate, so as to drive the pulsator 30 to rotate through the transmission shaft 60.

Further, the clutch device 50b is switchable between a disengaged state, a first engaged state, and a second engaged state, and allows the pulsator 30 to rotate relative to the plate 20 when the clutch device 50b is switched to the disengaged state, allows the pulsator 30 to rotate the plate 20 in a first direction together when the clutch device 50b is switched to the first engaged state, and allows the pulsator 30 to rotate the plate 20 in a second direction opposite to the first direction when the clutch device 50b is switched to the second engaged state. The first direction may be a clockwise direction or a counterclockwise direction, and may be specifically designed according to the structures of the inner cylinder 11, the supporting plate 20, the pulsator 30, and the clutch device 50 b.

According to the laundry treating apparatus 100 of the embodiment of the present invention, by providing the transmission shaft 60 connected to the pulsator 30 and the clutch device 50b switchable between the disengaged state, the first engaged state and the second engaged state, the disengagement and engagement of the pulsator 30 and the support plate 20 can be achieved, so that the pulsator 30 can rotate relative to the support plate 20 or the support plate 20 is driven to rotate together in the first direction or the second direction, the diversification of the movement of the pulsator 30, the support plate 20 and the drum 11 is achieved, and the washing and rinsing effects of the laundry treating apparatus 100 are improved.

As shown in fig. 20, according to an embodiment of the present invention, a propeller shaft 60 includes: a first shaft 61 and a second shaft 62, wherein the driving device 40 is connected with the first shaft 61 to drive the first shaft 61 to rotate, and the second shaft 62 is respectively connected with the first shaft 61 and the pulsator 30, i.e. the first shaft 61 is connected with the pulsator 30 through the second shaft 62, so that the pulsator 30 can be driven to rotate together with the first shaft 61 through the second shaft 62. Further, the second shaft 62 is slidable in the axial direction of the first shaft 61, so that the height of the pulsator 30 in the inner tub 11, and thus the height of the supporting plate 20 in the inner tub 11, can be changed.

In some embodiments, the first shaft 61 has a hollow cavity 610 extending along an axial direction thereof, and the second shaft 62 is inserted into the hollow cavity 610, wherein one of an inner peripheral wall of the first shaft 61 and an outer peripheral wall of the second shaft 62 has a sliding protrusion 621, and the other one has a sliding groove 611 matched with the sliding protrusion 621, and by providing the sliding protrusion 621 and the sliding groove 611 matched with each other, both the limit of the second shaft 62 and the sliding matching of the second shaft 62 and the first shaft 61 can be achieved.

As shown in fig. 20, according to an embodiment of the present invention, the outer circumferential wall of the supporting plate 20 and the inner circumferential wall of the inner cylinder 11 are slidably engaged with each other through a threaded structure, so that the inner cylinder 11 is allowed to rotate together when the pulsator 30 drives the supporting plate 20 to rotate together in the first direction, i.e. the pulsator 30 can drive the supporting plate 20 and the inner cylinder 11 to rotate together in the first direction; when the pulsator 30 rotates the support plate 20 together in the second direction, the support plate 20 is allowed to move upward in the axial direction of the inner cylinder 11 to raise the height of the support plate 20.

In some embodiments, the screw structure includes a sliding groove 21 and a rib 112 slidably engaged with the sliding groove 21, the sliding groove 21 is formed on an outer circumferential wall of the support plate 20, the rib 112 is formed on an inner circumferential wall of the inner cylinder 11, wherein a portion of the circumferential wall of the inner cylinder 11 is recessed into the chamber 111 to form the rib 112 on an inner surface of the circumferential wall of the inner cylinder 11, and a groove 113 is formed on an outer surface of the circumferential wall of the inner cylinder 11.

As shown in fig. 21 to 24, according to an embodiment of the present invention, the clutch device 50b includes a driven member 53b and a driving member 521b, the driven member 53b is disposed on the supporting plate 20, the driven member 53b has a plurality of spaced driven teeth 531, each driven tooth 531 has a forward tooth surface 5311 on the same side and a reverse tooth surface 5312 opposite to the forward tooth surface 5311, the driving member 521b is movably disposed on the pulsator 30, and the driving member 521b has a first driving tooth 5211 and a second driving tooth 5212.

When the clutch device 50b is switched to the disengaged state, the driving member 521b is spaced apart from the driven member 53b to allow the driven member 53b to be disengaged, and at this time, power and motion cannot be transmitted between the driving member 521b and the driven member 53 b.

When the clutch device 50b is switched to the first engagement state, the first driving tooth 5211 abuts against the forward tooth surface 5311 to allow the driving member 521b and the driven member 53b to rotate together in the first direction, so that the pulsator 30 may rotate the backup plate 20 in the first direction.

When the clutch device 50b is switched to the second engagement state, the second driving tooth 5212 abuts against the reverse tooth surface 5312 to allow the driving member 521b and the driven member 53b to rotate together in the second direction, so that the pulsator 30 can drive the supporting plate 20 to rotate in the second direction.

When the laundry treating apparatus 100 is in the washing stage, the clutch device 50b is switched to the separated state, so that the pulsator 30 may rotate with respect to the supporting plate 20 and the drum 11.

When the laundry treating apparatus 100 is in the dehydration stage, the clutch device 50b is switched to the first engagement state, and the pulsator 30 may rotate the support plate 20 together in the first direction, thereby reducing the height of the support plate 20, and when the support plate 20 rotates to the bottom of the drum 11, the drum 11 may be rotated together in the first direction.

When the laundry treating apparatus 100 is in the lifting stage, the clutch device 50b is switched to the second engagement state, and the pulsator 30 may rotate the support plate 20 in a second direction opposite to the first direction together, thereby lifting the height of the support plate 20.

According to the laundry treating apparatus 100 of the embodiment of the present invention, by providing the clutch device 50b switchable between the disengaged state, the first engaged state and the second engaged state, the disengagement and engagement of the pulsator 30 and the supporting plate 20 can be achieved, so that the pulsator 30 can rotate relative to the supporting plate 20 or the supporting plate 20 is driven to rotate together, the diversification of the movement of the pulsator 30 and the supporting plate 20 is achieved, so that the laundry treating apparatus 100 can be switched among the washing stage, the dehydration stage and the lifting stage, and the washing and rinsing effects and the use experience of the laundry treating apparatus 100 are improved.

In some embodiments, the clutch device 50b includes a driving member 521b disposed in the pulsator 30, a driven member 53b disposed in the supporting plate 20, a driver 56, and a return elastic member 57.

When the laundry processing apparatus 100 runs a washing program, the driving member 521b is separated from the driven member 53b under the action of the return elastic member 57, the pulsator 30 rotates clockwise and counterclockwise to implement a washing action, and the support plate 20 and the inner tub 11 do not move.

When the clothes processing device 100 runs the dehydration program, the driver 56 drives the driving element 521b to rotate counterclockwise, so that the driving element 521b is engaged with the driven element 53b, and the pulsator 30 drives the supporting disc 20 to rotate clockwise, and the clockwise rotation direction is opposite to the direction of the thread structure, so that the supporting disc 20 gradually descends, and the supporting disc 20 is tightly matched with the bottom of the inner cylinder 11, so as to drive the inner cylinder 11 to rotate together, thereby realizing the dehydration action.

When the laundry processing apparatus 100 runs the lifting program, the driver 56 drives the driving element 521b to rotate clockwise, so that the driving element 521b is engaged with the driven element 53b, and the pulsator 30 drives the supporting plate 20 to rotate counterclockwise, because the counterclockwise rotation direction is the same as the direction of the thread structure, the supporting plate 20 gradually rises, and the second shaft 62 of the transmission shaft 60 rises relative to the first shaft 61, so as to realize the lifting action, thereby lifting the laundry after the washing is finished, and facilitating the user to take out the laundry.

The laundry treating apparatus 100 according to another alternative embodiment of the present invention includes an inner drum 11, a support plate 20, a rotatable pulsator 30, a driving device 40 for driving the pulsator 30 to rotate, and a clutch device 50 b.

The inner cylinder 11 defines a chamber 111 with an open top, a support plate 20 is disposed in the chamber 111 and is movable in the axial direction of the inner cylinder 11, and a pulsator 30 is disposed on the support plate 20 and moves with the support plate 20 in the axial direction of the inner cylinder 11.

The clutch device 50b is switchable between a disengaged state, a first engaged state and a second engaged state, allows the pulsator 30 to rotate relative to the plate 20 when the clutch device 50b is switched to the disengaged state, allows the pulsator 30 to drive the plate 20 to rotate together in a first direction when the clutch device 50b is switched to the first engaged state, allows the pulsator 30 to drive the plate 20 to rotate in a second direction opposite to the first direction when the clutch device 50b is switched to the second engaged state,

wherein, the laundry treating apparatus 100 is configured to control the clutch device 50b to be alternately switched between the first engagement state and the second engagement state and to alternately move the pulsator 30 and the pulsator 20 up and down in the axial direction of the drum 11 within a preset time of the washing stage.

According to the laundry treatment apparatus 100 of the embodiment of the present invention, by providing the clutch device 50b switchable between the disengaged state, the first engaged state and the second engaged state, the disengagement and engagement of the pulsator 30 and the support plate 20 can be achieved, when the laundry treatment apparatus 100 is in the washing stage, by controlling the clutch device 50b to alternately switch between the first engaged state and the second engaged state, the pulsator 30 drives the support plate 20 to alternately rotate together in the first direction and the second direction, and the pulsator 30 and the support plate 20 alternately move up and down in the axial direction of the drum 11, the diversification of the movement of the pulsator 30 and the support plate 20 can be achieved, thereby achieving the three-dimensional toggling effect of the water flow, and improving the washing and rinsing effects and the use experience of the laundry treatment apparatus 100.

That is, by using the threaded structure to slidably fit the support plate 20 and the inner cylinder 11, when the clutch device 50b is switched to the engaged state and the driving device 40 drives the pulsator 30 to rotate, the pulsator 30 can drive the support plate 20 to rotate, and at the same time, the support plate 20 can be driven to move in the axial direction of the inner cylinder 11, so that the movement of the pulsator 30 and the support plate 20 is diversified by one driving device 40, thereby achieving the three-dimensional stirring effect of the water flow.

When the clutch device 50b is switched to the first engagement state, the pulsator 30 can drive the supporting plate 20 to rotate together in the clockwise direction, and since the inner cylinder 11 and the supporting plate 20 are in sliding fit with a right-handed thread structure, when the supporting plate 20 rotates clockwise, it gradually moves in a direction of screwing into the inner cylinder 11, that is, moves downward relative to the inner cylinder 11. When the clutch device 50b is switched to the second engagement state, the pulsator 30 can drive the support plate 20 to rotate together along the counterclockwise direction, and since the inner cylinder 11 and the support plate 20 are in sliding fit by adopting a right-handed thread structure, when the support plate 20 rotates counterclockwise, the support plate gradually moves in a direction of screwing out the inner cylinder 11, that is, moves upward relative to the inner cylinder 11, so that the support plate 20 and the pulsator 30 move in the axial direction of the inner cylinder 11, and a three-dimensional stirring effect of water flow is achieved.

It can be understood that when the clutch device 50b is switched to the first engagement state, if the supporting plate 20 rotates to the bottom of the inner cylinder 11, the supporting plate 20 can be tightly engaged with the inner cylinder, so that the supporting plate 20 can rotate the inner cylinder 11 clockwise.

According to one embodiment of the present invention, the clutch device 50b further includes: and a driver 56 for driving the driving member 521b to rotate around the fixed axis between a first position and a second position, wherein when the driving member 521b rotates to the first position, the first driving tooth 5211 abuts against the forward tooth surface 5311, and when the driving member 521b rotates to the second position, the second driving tooth 5212 abuts against the reverse tooth surface 5312.

Further, the laundry treating apparatus 100 further includes an electromagnet disposed at the bottom of the inner tub 11, and a reed switch that is turned on when the electromagnet is powered on to control the operation of the driver 56, and is turned off when the electromagnet is powered off to control the operation of the driver 56. For example, a reed switch may be provided on the support plate 20, so that the operation of the actuator 56 can be controlled by detecting the relative position of the support plate 20 and the bottom of the inner cylinder 11 to control the on/off of the electromagnet.

The clutch device 50b according to the embodiment of the present invention will be described in detail below with reference to fig. 18 to 24.

As shown in fig. 18 to 24, a clutch device 50b according to an embodiment of the present invention includes: the driven part 53b and the movable driving part 521b, the driven part 53b has a plurality of driven teeth 531 arranged at intervals, each driven tooth 531 has a forward tooth surface 5311 on the same side and a reverse tooth surface 5312 arranged opposite to the forward tooth surface 5311, and the driving part 521b has a first driving tooth 5211 and a second driving tooth 5212.

Wherein the clutch device 50b is configured to be switchable between a disengaged state, a first engaged state and a second engaged state, and when the clutch device 50b is switched to the disengaged state, the driving member 521b is arranged to be spaced apart from the driven member 53b to enable the two to be disengaged; when the clutch device 50b is switched to the first engaged state, the first driving tooth 5211 stops against the forward tooth surface 5311 to allow the driving member 521b and the driven member 53b to rotate together in the first direction; when the clutch device 50b is switched to the second engaged state, the second driving tooth 5212 abuts against the reverse tooth surface 5312 to allow the driving piece 521b and the driven piece 53b to rotate together in a second direction opposite to the first direction.

According to the clutch device 50b of the embodiment of the invention, the driven part 53b is provided with the forward tooth surface 5311 and the reverse tooth surface 5312, the driving part 521b is provided with the first driving tooth 5211 and the second driving tooth 5212, and the position of the driving part 521b relative to the driven part 53b is adjusted, so that the clutch device 50b is switched among a separation state, a first engagement state and a second engagement state.

That is, the driver 56 is configured to drive the driving member 521b to rotate within a preset angle range, so that the clutch device 50b is switched among the disengaged state, the first engaged state and the second engaged state by changing the position of the driving member 521b relative to the driven member 53 b.

In some embodiments, the initial position of the driving member 521b is an intermediate position between the first position and the second position, and when the driving member 521b is located at the intermediate position, the driving member 521b is disposed to be spaced apart from the driven member 53 b.

The intermediate position is the position of the active member 521b shown in fig. 22, the first position is the position of the active member 521b shown in fig. 23, and the second position is the position of the active member 521b shown in fig. 24.

Further, the clutch device 50b further includes a return elastic member 57 for returning the driving member 521b from the first position or the second position to the initial position. By providing the elastic restoring member 57, the active member 521b can be restored from the first position or the second position to the initial position by the elastic restoring member 57, and the device has a simple structure, is convenient to assemble and disassemble, has a low cost, and is highly reliable in use.

When the driver 56 drives the driving member 521b to rotate from the intermediate position to the first position, the return elastic member 57 stores elastic potential energy, when the driver 56 stops driving, the return elastic member 57 releases the elastic potential energy, and the driving member 521b is returned to the intermediate position under the action of the return elastic member 57, so that the clutch device 50b realizes switching between the disengaged state and the first engaged state.

When the driver 56 drives the driving member 521b to rotate from the intermediate position to the second position, the return elastic member 57 stores elastic potential energy, and when the driver 56 stops driving, the return elastic member 57 releases the elastic potential energy, and the driving member 521b is returned to the intermediate position by the action of the return elastic member 57, so that the clutch device 50b realizes switching between the disengaged state and the second engaged state.

In some embodiments, when the active member 521b is located at the initial position, the return elastic member 57 is in a free state. For example, the driver 56 is a motor, the return elastic member 57 is a torsion spring, and the torsion spring is sleeved on a motor shaft of the motor and connected to the driving member 521 b.

When the motor drives the driving member 521b to rotate from the intermediate position to the first position, the torsion spring stores elastic potential energy, and when the motor stops driving, the torsion spring releases the elastic potential energy, and the driving member 521b is reset to the intermediate position under the action of the torsion spring, so that the clutch device 50b realizes switching between the disengaged state and the first engaged state.

When the motor drives the driving member 521b to rotate from the intermediate position to the second position, the torsion spring stores elastic potential energy, and when the motor stops driving, the torsion spring releases the elastic potential energy, and the driving member 521b is reset to the intermediate position under the action of the torsion spring, so that the clutch device 50b realizes switching between the disengaged state and the second engaged state.

According to an embodiment of the present invention, the follower 53b is formed in a ring shape and the follower teeth 531 are formed at the outer circumferential wall of the follower 53b, and the driving member 521b is provided at the outer side of the follower 53 b. For example, the peripheral wall of the follower 53b is provided with a plurality of driven teeth 531 at local positions, and for example, the peripheral wall of the follower 53b is provided with a plurality of driven teeth 531 uniformly and at intervals along the circumferential direction thereof, which can be specifically designed according to actual needs.

According to one embodiment of the present invention, the driven member 53b is a ratchet and the driving member 521b is a pawl. By selecting the ratchet wheel and the pawl as the driven part 53b and the driving part 521b, the structure design is not required to be independently carried out, the cost is reduced, and the ratchet wheel and the pawl have simple structures, are convenient to assemble and are easy to realize the functions.

According to an embodiment of the present invention, the clutch device 50b further includes a base 58, and the driving member 521b is movably disposed on the base 58. Specifically, when the clutch device 50b is applied in the laundry treating apparatus 100, the base 58 may be fixedly installed within the pulsator 30, so that the driving member 521b is movably installed within the pulsator 30, and the driven member 53b may be installed on the supporting plate 20.

The laundry treating apparatus 100 according to the embodiment of the present invention includes the clutch device 50b according to the above-described embodiment.

Since the clutch device 50b according to the embodiment of the present invention has the above technical effects, the laundry treating apparatus 100 according to the embodiment of the present invention also has the above technical effects that the forward tooth surface 5311 and the reverse tooth surface 5312 are provided on the driven member 53b, the first driving tooth 5211 and the second driving tooth 5212 are provided on the driving member 521b, and the various operation forms of the laundry treating apparatus 100 can be realized by applying the clutch device 50b to the laundry treating apparatus 100 by adjusting the position of the driving member 521b with respect to the driven member 53b so as to switch the clutch device 50b between the disengaged state, the first engaged state and the second engaged state, thereby satisfying the operation requirements of the laundry treating apparatus 100.

In some embodiments, the laundry treating apparatus 100 further includes an inner drum 11, a supporting plate 20 and a rotatable pulsator 30, the inner drum 11 defines a chamber 111 with an open top, the supporting plate 20 is disposed in the chamber 111 and is movable in an axial direction of the inner drum 11 for elevating a height of laundry in the inner drum 11, a driven member 53b is disposed on the supporting plate 20, the pulsator 30 is disposed on a side of the supporting plate 20 facing an opening of the chamber 111 and moves in the axial direction of the inner drum 11 together with the supporting plate 20, and a driving member 521b is disposed on the pulsator 30.

By providing the clutch device 50b switchable between the separated state, the first engaged state and the second engaged state in the laundry treating apparatus 100, separation and engagement of the pulsator 30 and the supporting plate 20 can be achieved, so that the pulsator 30 can rotate relative to the supporting plate 20 or rotate the supporting plate 20 together, diversification of movement of the pulsator 30 and the supporting plate 20 is achieved, and washing and rinsing effects of the laundry treating apparatus 100 are improved.

As shown in fig. 21, in some embodiments, the support plate 20 has a mounting ring protruding upward at a middle position of the bottom thereof, the mounting ring defines a mounting passage extending in the axial direction of the inner cylinder 11, the drive shaft 60 is inserted into the mounting passage to be connected to the pulsator 30, and the follower 53b is provided on the outer peripheral wall of the mounting ring. Further, the outer peripheral wall of the mounting ring also has a limit step extending along the circumferential direction thereof, and the driver 56 is provided outside the mounting ring and above the limit step.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Other configurations and operations of the laundry treating apparatus 100 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A laundry treating apparatus, comprising:

an inner barrel defining a chamber open at the top;

the supporting disc is arranged in the cavity;

a rotatable impeller disposed on a side of the support disk facing the opening of the chamber;

the driving device is connected with the impeller through a transmission shaft and is used for driving the impeller to rotate;

a clutch device switchable between a disengaged state, a first engaged state, and a second engaged state, the pulsator being allowed to rotate relative to the supporting plate when the clutch device is switched to the disengaged state, the pulsator being allowed to rotate the supporting plate in a first direction together with the pulsator when the clutch device is switched to the first engaged state, the pulsator being allowed to rotate the supporting plate in a second direction opposite to the first direction when the clutch device is switched to the second engaged state,

the outer peripheral wall of the supporting disc is in sliding fit with the inner peripheral wall of the inner cylinder through a thread structure,

the inner cylinder is allowed to rotate together under the condition that the impeller drives the support disc to rotate together in the first direction, and the support disc is allowed to move upwards in the axial direction of the inner cylinder under the condition that the impeller drives the support disc to rotate together in the second direction so as to lift the height of the support disc.

2. The laundry treating apparatus according to claim 1, wherein the driving shaft includes:

the driving device is connected with the first shaft to drive the first shaft to rotate;

and the second shaft is respectively connected with the first shaft and the impeller so as to drive the impeller to rotate along with the first shaft, and the second shaft is slidable along the axial direction of the first shaft.

3. The laundry treating apparatus according to claim 2, wherein the first shaft has a hollow cavity extending in an axial direction thereof, the second shaft is inserted into the hollow cavity,

wherein one of the inner peripheral wall of the first shaft and the outer peripheral wall of the second shaft has a sliding projection, and the other has a sliding groove fitted with the sliding projection.

4. The laundry treating apparatus according to claim 3, wherein the sliding protrusion is provided on an outer circumferential wall of the second shaft and extends in an axial direction thereof, and the sliding groove is provided on an inner circumferential wall of the first shaft and extends in an axial direction thereof.

5. The laundry processing apparatus according to claim 1, wherein the screw structure includes a slide groove formed at an outer peripheral wall of the support plate and a rib formed at an inner peripheral wall of the inner drum and slidably engaged with the slide groove,

wherein a part of the circumferential wall of the inner cylinder is recessed into the chamber to form the rib on the inner surface of the circumferential wall of the inner cylinder, and a groove is formed on the outer surface of the circumferential wall of the inner cylinder.

6. The laundry treating apparatus according to claim 1, wherein the clutch device includes:

the driven part is arranged on the supporting disc and is provided with a plurality of driven teeth which are arranged at intervals, and each driven tooth is provided with a forward tooth surface and a reverse tooth surface, wherein the forward tooth surface is positioned on the same side, and the reverse tooth surface is arranged opposite to the forward tooth surface;

a driving member movably disposed on the impeller and having a first driving tooth and a second driving tooth,

wherein, when the clutch device is switched to the separation state, the driving part and the driven part are arranged at intervals to separate the driving part and the driven part; in the clutch device switched to the first engaged state, the first driving tooth abuts against the forward tooth face to allow the driving member and the driven member to rotate together in the first direction; in the clutch device switched to the second engaged state, the second driving tooth abuts against the reverse tooth face to allow the driving member and the driven member to rotate together in the second direction.

7. The laundry treating apparatus according to claim 6, further comprising:

the driver is used for driving the driving part to rotate between a first position and a second position around a fixed axis, the driving part rotates to the state of the first position, the first driving tooth abuts against the forward tooth surface, and the driving part rotates to the state of the second position, the second driving tooth abuts against the reverse tooth surface.

8. The laundry treating apparatus according to claim 7, wherein the initial position of the driving member is an intermediate position located between the first position and the second position and spaced apart from the driven member,

the clutch device further comprises a reset elastic piece for resetting the driving piece from the first position or the second position to the initial position.

9. The laundry treating apparatus according to claim 8, wherein the return elastic member is in a free state in a state where the active member is located at the initial position.

10. The laundry treating apparatus according to claim 8, wherein the driver is a motor, and the return elastic member is a torsion spring connected to the driving member.

11. The laundry treating apparatus according to any one of claims 6 to 10, wherein the driven member is formed in a ring shape and the driven teeth are formed at an outer circumferential wall of the driven member, and the driving member is provided at an outer side of the driven member.

12. The laundry treating apparatus according to any one of claims 6-10, wherein the driven member is a ratchet and the driving member is a pawl.

13. The laundry treatment apparatus according to any one of claims 1-10, characterized in that the laundry treatment apparatus has a washing stage, a dewatering stage and a lifting stage,

the clutching device switches to the disengaged state while the laundry treating apparatus is in the washing phase;

the clutching device switches to the first engaged state while the laundry treating apparatus is in the spin-drying phase;

the clutch device is switched to the second engagement state to raise the height of the support tray when the laundry treating apparatus is in the lifting stage.