Centrifugal drainage device and washing machine

Abstract

The present invention belongs to the technical field of washing machines, and discloses a centrifugal drainage device and a washing machine. The centrifugal drainage device includes: a mounting bracket, a valve plug, which is relatively movable and mounted on the mounting bracket; and a driving component for driving the valve plug to move. The driving component is characterized in that the driving component includes a centrifugal slider, which slides under the action of centrifugal force; a reversing transmission mechanism, which connects the valve plug and the centrifugal slider and is used to convert the sliding of the centrifugal slider in one direction into driving the movement of the valve plug in another direction; the mounting bracket includes a base, a connecting frame, which is used to connect the base and the valve plug; the extending direction of the connecting frame coincides with the extending direction of the reversing transmission mechanism. By arranging the connecting frame to coincide with the extending direction of the reversing transmission mechanism, the present invention can reduce the area occupied below the drain outlet, thereby reducing the obstruction of the drain outlet by the centrifugal drainage device, and can improve the drainage efficiency of the washing machine.

Description

Technical Field

[0001] The present invention belongs to the technical field of washing machines, and in particular relates to a centrifugal drainage device and a washing machine. Background Art

[0002] Most conventional washing machines include interconnected inner and outer tubs. During operation, the outer tub holds wash water, while the inner tub holds laundry. Wash water can accumulate between the inner and outer tubs. As the washing machine operates over time, dirt and lint carried in the wash water can become trapped in the space between the inner and outer tubs, making it difficult to clean. This can lead to bacteria and odor buildup over years of use. To address this issue, conventional washing machines have been proposed that lack drain holes in the inner tub, allowing the inner tub to independently hold wash water during the wash cycle. However, conventional drainage methods cannot achieve this goal with a non-perforated inner tub.

[0003] Chinese patent application number 201610767640.4 discloses a washing machine with no water between the inner and outer barrels, comprising: an outer barrel; an inner barrel rotatably disposed within the outer barrel; during the washing / rinsing process, the inner barrel is filled with water, and no water is present between the inner and outer barrels; a drainage hole is provided at the bottom of the inner barrel, and a drainage sealing device is provided on the outer wall of the bottom of the inner barrel corresponding to the drainage hole; during washing / rinsing, the drainage sealing device keeps the drainage hole closed, and during dehydration, the drainage sealing device opens the drainage hole under the action of centrifugal force.

[0004] However, in the above solution, the valve plug slides radially along the inner drum to open and close the drain hole, which can be affected by water pressure, resulting in a less than ideal sealing effect. Furthermore, due to the speed limit of a pulsator washing machine, the centrifugal force provided by the centrifugal block is limited, potentially preventing the drain sealing device from opening the drain hole. Furthermore, the valve plug itself partially obstructs the drain outlet, significantly impacting drainage efficiency when unable to fully open, leading to slow drainage.

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

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing technology and provide a centrifugal drainage device and a washing machine. In the centrifugal drainage device, the vertical projection of the extension direction of the connecting frame in the mounting bracket on the plane where the centrifugal slider slides coincides with the vertical projection of the extension direction of the reversing transmission mechanism on the plane where the centrifugal slider slides, which can reduce the occupation of the area below the drain outlet, thereby avoiding the situation where a large area of the drain outlet is blocked and the drainage efficiency is affected during the drainage process. At the same time, it also reduces the possibility of line scraps hanging on the centrifugal drainage device, thereby avoiding affecting the blocking of the inner barrel by the centrifugal drainage device.

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

[0008] A centrifugal drainage device comprising:

[0009] Mounting bracket,

[0010] a valve plug mounted on the mounting bracket so as to be relatively movable;

[0011] and a driving component for driving the valve plug to move, the driving component comprising

[0012] Centrifugal slider, sliding under the action of centrifugal force;

[0013] The vertical projection of the extension direction of the connecting frame on the plane where the centrifugal slider slides coincides with the vertical projection of the extension direction of the reversing transmission mechanism on the plane where the centrifugal slider slides.

[0014] The mounting bracket includes

[0015] base,

[0016] A connecting frame, used for connecting the base and the valve plug;

[0017] The extending direction of the connecting frame coincides with the extending direction of the reversing transmission mechanism.

[0018] Furthermore, the reversing transmission mechanism includes:

[0019] A connecting rod, one end of which is connected to the centrifugal slider and moves with the centrifugal slider;

[0020] A reversing rod, one end of which is hinged to the other end of the connecting rod, moves in the same direction as the centrifugal slider under the drive of the connecting rod, and the other end of the reversing rod is hinged to the valve plug, driving the valve plug to move in the other direction;

[0021] The vertical projection of the extension direction of the connecting frame on the plane where the centrifugal slider slides coincides with the vertical projection of the extension direction of the connecting rod on the plane where the centrifugal slider slides;

[0022] Preferably, the extending direction of the connecting rod is parallel to the sliding direction of the centrifugal slider.

[0023] Furthermore, the connecting frame includes:

[0024] A guide portion for mounting a valve plug;

[0025] A connecting portion, used to connect the base and the guide portion;

[0026] A vertical projection of the extending direction of the connecting portion on the plane where the centrifugal slider slides coincides with a vertical projection of the extending direction of the connecting rod on the plane where the centrifugal slider slides.

[0027] Furthermore, the connecting portion is arranged above the connecting rod;

[0028] Preferably, the upper surface of the connecting portion is a concave curved surface whose height gradually decreases from both ends to the middle.

[0029] Furthermore, a groove extending in the same direction as the connecting rod is provided on the lower surface of the connecting portion, and the connecting rod is partially provided in the groove.

[0030] Furthermore, the base includes:

[0031] Two fixing parts are provided at intervals and are located on both sides of the guide part respectively, for fixing the base;

[0032] A transition portion, used to connect the two fixing portions;

[0033] The two ends of the connecting portion are respectively connected to the transition portion and the guide portion;

[0034] Preferably, the upper surface of the transition portion is higher than the upper surface of the fixing portion.

[0035] Furthermore, the guide portion has a vertically extending hollow slideway, and the transition portion has an arc-shaped edge on the side facing the guide portion, and the center of the arc-shaped edge is located on the axis of the hollow slideway.

[0036] Furthermore, the centrifugal drainage device further comprises a slideway, wherein a guide groove parallel to the sliding direction of the centrifugal slider is provided on the slideway, and a sliding portion is provided on the centrifugal slider corresponding to the guide groove, and the sliding portion is slidably inserted in the guide groove;

[0037] Preferably, the centrifugal sliding block includes a centrifugal block body and a sliding member fixedly connected to the centrifugal block body; the sliding portion is formed on the sliding member, and the sliding member is slidably installed on the slideway.

[0038] Furthermore, an elastic member is installed between the centrifugal slider and the slideway, and the elastic member applies a reset force to the centrifugal slider, and the action direction of the reset force is opposite to the direction in which the centrifugal slider slides under the action of the centrifugal force;

[0039] Preferably, a first stop portion is provided on the centrifugal slider, and a second stop portion is provided on the slideway and is spaced apart from the first stop portion; both ends of the elastic member respectively stop against the surfaces opposite to the first stop portion and the second stop portion.

[0040] Another object of the present invention is to provide a washing machine comprising an inner tub, a drain opening being provided at the bottom of the inner tub, and the centrifugal drain device described above;

[0041] During the washing / rinsing process, the valve plug blocks the drain outlet, allowing the inner tub to independently hold water;

[0042] During the drainage process, the centrifugal slider slides from the inside to the outside along the radial direction of the inner barrel under the action of centrifugal force, and drives the valve plug to move in a direction parallel to the central axis of the inner barrel through the reversing transmission mechanism to open the drainage port.

[0043] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0044] In the centrifugal drainage device of the present invention, since the vertical projections of the extension directions of the connecting frame and the reversing transmission mechanism on the plane where the centrifugal slider slides coincide, when it is used in a washing machine for drainage, the area occupied below the drain outlet can be reduced, thereby avoiding the situation where a large area of the drain outlet is blocked and the drainage efficiency is affected. At the same time, the possibility of wire scraps carried in the drainage being caught on the centrifugal drainage device can be reduced, thereby avoiding the reduction in drainage efficiency caused by the hooking of wire scraps, or obstruction of the centrifugal drainage device from closing the inner barrel and causing water leakage.

[0045] In the centrifugal drainage device of the present invention, the connecting portion of the mounting bracket is arranged to overlap with the connecting rod in the reversing transmission mechanism, and a groove that can avoid the connecting rod is provided on the lower surface of the connecting portion, so that the overall structure of the centrifugal drainage device is more compact. When used in a washing machine, it can reduce the space occupied below the inner barrel, which is conducive to the expansion of the inner barrel.

[0046] The washing machine of the present invention incorporates the aforementioned centrifugal drainage device. During the washing / rinsing process, a valve plug seals the drain opening, allowing the inner tub to independently hold water. This prevents water from accumulating between the inner and outer tubs, potentially leading to the accumulation of dirt and lint. A centrifugal slider slides radially along the inner tub, and a reversing transmission mechanism drives the valve plug parallel to the central axis of the inner tub to open and close the drain opening, effectively sealing the drain opening. The centrifugal drainage device itself boasts a compact structure. By aligning the connecting frame with the reversing transmission mechanism, obstruction to the drainage flow is reduced, thereby improving drainage efficiency.

[0047] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without inventive effort. In the accompanying drawings:

[0049] Figure 11 is a schematic diagram of the bottom of the inner drum of a washing machine in an embodiment of the present invention with the drain outlet blocked;

[0050] Figure 2 This invention Figure 1 A magnified schematic diagram of point A in the middle;

[0051] Figure 3 is a cross-sectional view of the bottom of the inner drum of the washing machine in the embodiment of the present invention with the drain outlet blocked;

[0052] Figure 4 This invention Figure 3 A magnified schematic diagram of point B in the middle;

[0053] Figure 5 1 is a schematic diagram of the bottom of the inner drum of a washing machine in an embodiment of the present invention with the drain port open;

[0054] Figure 6 is a cross-sectional view of the bottom of the inner tub of a washing machine in an embodiment of the present invention with the drain port open;

[0055] Figure 7 This invention Figure 6 Enlarged schematic diagram of point C in the middle;

[0056] Figure 8 is an exploded view of the bottom of the inner tub of a washing machine according to an embodiment of the present invention;

[0057] Figure 9 is a structural schematic diagram of a mounting bracket according to an embodiment of the present invention;

[0058] Figure 10 is a schematic diagram of the mounting bracket from another perspective in an embodiment of the present invention;

[0059] Figure 11 This is a schematic structural diagram of a flange according to an embodiment of the present invention;

[0060] Figure 12 is a bottom view of the flange in an embodiment of the present invention;

[0061] Figure 13 2 is a schematic structural diagram of a centrifugal slider in an embodiment of the present invention;

[0062] Figure 14 2 is a schematic structural diagram of two slideways in an embodiment of the present invention.

[0063] In the figure: 100, barrel bottom; 101, drain outlet; 200, valve plug; 201, sealing cover; 202, support rod; 203, sealing gasket; 300, centrifugal slider; 310, centrifugal block body; 311, notch; 320, sliding member; 321, sliding portion; 322, first stop portion; 323, limiting boss; 324, first covering portion; 325, second covering portion; 326, clamping groove; 410, reversing rod; 420, connecting rod; 500, mounting bracket; 510, base; 511, fixing portion; 512, transition portion; 520, connecting frame; 521, guide portion; 5211, avoidance groove; 522, connecting part; 5221, groove; 600, slide; 601, guide groove; 602, second stop part; 603, slide fixing part; 604, supporting part; 610, elastic member; 700, flange; 710, mounting opening; 711, first edge; 712, second edge; 713, fillet; 720, first mounting part; 721, first mounting hole; 730, drainage avoidance opening; 740, second mounting part; 741, second mounting hole; 751, central area; 752, peripheral area; 753, transition surface; 754, vertical section.

[0064] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0065] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0066] In the description of the present invention, it should be noted that the terms "up", "down", "left", "right", "vertical", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0067] In the description of the present invention, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0068] Example 1

[0069] like Figures 1 to 10 As shown, this embodiment provides a centrifugal drainage device and a washing machine. The centrifugal drainage device is installed at the bottom of the inner barrel of the washing machine and can open or block the drainage port 101 on the inner barrel, thereby controlling the drainage of the inner barrel.

[0070] The centrifugal drainage device described in this embodiment specifically includes:

[0071] Mounting bracket 500,

[0072] The valve plug 200 is mounted on the mounting bracket 500 so as to be relatively movable;

[0073] And a driving component, used to drive the valve plug 200 to move.

[0074] The driving component includes:

[0075] The centrifugal slider 300 slides under the action of centrifugal force;

[0076] The reversing transmission mechanism connects the valve plug 200 and the centrifugal slider 300 and is used to convert the sliding of the centrifugal slider 300 in one direction into driving the valve plug 200 to move in another direction.

[0077] The mounting bracket 500 includes:

[0078] base 510,

[0079] The connecting frame 520 is used to connect the base 510 and the valve plug 200 .

[0080] The vertical projection of the extension direction of the connecting frame 520 on the plane where the centrifugal slider 300 slides coincides with the vertical projection of the extension direction of the reversing transmission mechanism on the plane where the centrifugal slider 300 slides.

[0081] In this embodiment, the centrifugal slider 300 drives the valve plug 200 to move through the reversing transmission mechanism, and the reversing transmission mechanism can convert the horizontal movement of the centrifugal slider 300 into the vertical movement of the valve plug 200. Figures 1 to 7 As shown, when the centrifugal slider 300 slides horizontally along the radial direction of the inner barrel, the valve plug 200 moves vertically in a direction parallel to the central axis of the inner barrel to open / block the drain port 101, so that the drain port 101 can be set on the bottom 100 of the inner barrel. When the drain port 101 is opened, the water is directly discharged downward, and the drainage efficiency is higher.

[0082] The connecting frame 520 of the mounting bracket 500 and the reversing transmission mechanism are located below the drain outlet 101. In this embodiment, the structural design of the centrifugal drainage device allows the extension directions of the connecting frame 520 and the reversing transmission mechanism to coincide with the plane where the centrifugal slider 300 slides, that is, the vertical projection on the horizontal plane in the figure. This can reduce the area occupied below the drain outlet 101. When the washing machine is draining, the drain outlet 101 is prevented from being blocked by a large area, thereby ensuring a higher drainage efficiency. On the other hand, the washing machine may carry a large amount of wire scraps in the drainage, which may be hooked and remain at any position where the drainage water flows. The connecting frame 520 and the reversing transmission mechanism have overlapping projections on the horizontal plane, which can also reduce the area exposed to the drainage water flow, thereby reducing the hooking and residue of wire scraps, thereby avoiding the reduction in drainage efficiency caused by the hooking of wire scraps, or obstructing the action of the centrifugal drainage device to close the inner barrel, causing leakage.

[0083] In this embodiment, in order to realize the different direction movement of the centrifugal slider 300 and the valve plug 200, the reversing transmission mechanism specifically includes:

[0084] The connecting rod 420 has a left end connected to the centrifugal slider 300 and moves with the centrifugal slider 300;

[0085] One end of the reversing rod 410 is hinged to the right end of the connecting rod 420, and moves in the same direction as the centrifugal slider 300 under the drive of the connecting rod 420. The other end of the reversing rod 410 is hinged to the valve plug 200, driving the valve plug 200 to move in the other direction.

[0086] The vertical projection of the extension direction of the connecting frame 520 on the plane where the centrifugal slider 300 slides coincides with the vertical projection of the extension direction of the connecting rod 420 on the plane where the centrifugal slider 300 slides.

[0087] In a preferred embodiment of this embodiment, the connecting rod 420 extends parallel to the direction in which the centrifugal slider 300 slides. That is, both the connecting rod 420 and the connecting bracket 520 extend radially along the inner barrel bottom 100. This ensures that the force applied by the connecting rod 420 to the reversing rod 410 has no circumferential component along the barrel bottom 100. This reduces the horizontal component of the force acting on the valve plug 200 and the frictional resistance experienced by the valve plug 200 when it moves relative to the mounting bracket 500.

[0088] In this embodiment, the centrifugal slider 300 slides horizontally to the left under the action of centrifugal force, driving one end of the reversing rod 410 to move leftward synchronously with the centrifugal slider 300 via the connecting rod 420. The other end of the reversing rod 410 swings about its hinged end to the connecting rod 420, thereby driving the valve plug 200 to move vertically upward in the mounting bracket 500.

[0089] In detail, the right end of the connecting rod 420 has a connecting groove, and the lower end of the reversing rod 410 is arranged in the connecting groove and is hinged to the connecting rod 420.

[0090] In a further solution of this embodiment, the connecting frame 520 includes:

[0091] The guide portion 521 is used for installing the valve plug 200;

[0092] The connecting portion 522 is used to connect the base 510 and the guiding portion 521 .

[0093] The vertical projection of the extending direction of the connecting portion 522 on the plane where the centrifugal slider 300 slides coincides with the vertical projection of the extending direction of the connecting rod 420 on the plane where the centrifugal slider 300 slides.

[0094] Furthermore, the connecting rod 420 extends from the centrifugal slider 300 along the radial direction of the barrel bottom 100 from the outside to the inside until it is hinged with the reversing rod 410, so that the distance between the centrifugal slider 300 and the central axis of the inner barrel bottom 100 is greater than the distance between the valve plug 200 and the central axis, that is, the centrifugal slider 300 has a larger rotation radius. In this way, the centrifugal slider 300 can provide greater centrifugal force.

[0095] In this embodiment, the connecting portion 522 is arranged above the connecting rod 420, and the two extend in the same direction, thereby forming an upper and lower overlapping structure to reduce obstruction to the drain outlet 101 when installed in the washing machine, and the structure is simple.

[0096] In a preferred solution of this embodiment, the upper surface of the connecting portion 522 is an inwardly concave curved surface whose height gradually decreases from both ends to the middle.

[0097] In this embodiment, the valve stopper 200 seals the drain outlet 101 downward from the interior of the inner barrel. To achieve a better seal, a portion of the barrel bottom 100 located on the outer periphery of the drain outlet 101 protrudes downward from the barrel bottom 100 to mate with the valve stopper 200. The guide portion 521 is positioned corresponding to the drain outlet 101. The base 510, used to secure the mounting bracket 500, is positioned on the outer periphery of the drain outlet 101, such that the connecting portion 522 extends from the outer periphery of the drain outlet 101 to near the center of the drain outlet 101. The middle area of the connecting portion 522 passes through the downwardly protruding area of the barrel bottom 100. The upper surface of the connecting portion 522 is configured as an inwardly curved surface, with the height gradually decreasing from both ends to the middle. This effectively avoids the downwardly protruding area of the barrel bottom 100, allowing the mounting bracket 500 to be installed closer to the barrel bottom 100, resulting in a more compact structure.

[0098] In a further embodiment of this embodiment, a groove 5221 is provided on the lower surface of the connecting portion 522, extending in the same direction as the connecting rod 420, and the connecting rod 420 is partially disposed in the groove 5221. This arrangement allows the connecting portion 522 to be closer to the connecting rod 420 in the vertical direction, making the overall structure of the centrifugal drainage device more compact and reducing its overall volume. This, in turn, reduces the space occupied below the inner tub when used in a washing machine, facilitating expansion of the inner tub.

[0099] In this embodiment, the base 510 specifically includes:

[0100] Two fixing portions 511 are provided at intervals, one on each side of the guide portion 521 , for fixing the base 510 ;

[0101] The transition portion 512 is used to connect the two fixing portions 511 .

[0102] Two ends of the connecting portion 522 are connected to the transition portion 512 and the guiding portion 521 respectively.

[0103] In this embodiment, the fixing portion 511 of the base 510 is connected to the structure below the inner tub to secure the mounting bracket 500 relative to the inner tub. The guide portion 521 is suspended relative to the fixing portion 511. Providing two fixing portions 511, preferably symmetrically relative to the guide portion 521, provides better securing of the mounting bracket 500 and a more robust structure.

[0104] In a further embodiment of this embodiment, the guide portion 521 comprises a vertically extending hollow channel, and the transition portion 512 has a curved edge on the side facing the guide portion 521, with the center of the curved edge located on the axis of the hollow channel. The radius of the curved edge is greater than the radius of the drain outlet 101, allowing the transition portion 512 to avoid the area below the drain outlet 101, preventing the transition portion 512 from blocking the drainage flow and affecting drainage efficiency.

[0105] The valve plug 200 in this embodiment specifically includes a sealing cover 201 and a support rod 202. The sealing cover 201 is used to block / open the drain port 101, and the two ends of the support rod 202 are respectively connected to the sealing cover 201 and the reversing rod 410. Specifically, the lower end of the support rod 202 is slidably disposed within the hollow slideway of the guide portion 521 and is hingedly connected to the reversing rod 410. The upper end of the support rod 202 extends out of the guide portion 521 and is fixedly connected to the sealing cover 201.

[0106] Furthermore, the right side of the guide portion 521 has a vertically extending escape groove 5211 with an open lower end. When the reversing rod 410 swings to drive the support rod 202, the lower half of the reversing rod 410 passes through the escape groove 5211 and extends out of the guide portion 521 when the sealing cover 201 seals the drain outlet 101. The lower end of the support rod 202 has an open mounting groove, and the upper end of the reversing rod 410 is inserted into the mounting groove and hingedly connected to the support rod 202.

[0107] Preferably, a sealing gasket 203 is fixedly provided on the lower side of the outer periphery of the sealing cover 201. When the valve plug 200 blocks the drain outlet 101, the sealing gasket 203 is sealed and fitted with the outer periphery of the drain outlet 101 on the inner side of the barrel bottom 100, thereby achieving a better sealing effect.

[0108] Because sealing cover 201 is located inside the inner tub, it blocks drain port 101 from top to bottom. When the inner tub is filled with water, water pressure acts on the upper surface of sealing cover 201 to provide auxiliary sealing force, improving the sealing effect. Guide portion 521 limits the horizontal movement of support rod 202, thereby effectively converting the horizontal movement of centrifugal slider 300 into vertical movement of valve plug 200 via reversing rod 410.

[0109] For a pulsator washing machine, due to the maximum speed it can reach, providing sufficient centrifugal force to open the drain outlet 101 through the centrifugal slider 300 requires a larger mass, i.e., a larger volume. In this embodiment, the centrifugal slider 300 has a flat structure. When used in a washing machine, it can be installed as close to the bottom 100 of the inner tub as possible. This allows it to increase its volume by increasing its flat surface area without occupying too much space below the inner tub, thereby providing a greater mass and enhancing the centrifugal force it can provide.

[0110] Specifically, the centrifugal slider 300 in this embodiment extends to a certain length along the circumference of the inner barrel. By increasing the extension length of the centrifugal slider 300 along the circumference of the inner barrel, the mass of the centrifugal slider 300 can be effectively increased.

[0111] The washing machine provided in this embodiment includes an inner tub, and a drain port 101 is provided at the bottom 100 of the inner tub. The washing machine also includes the centrifugal drainage device described above.

[0112] During the washing / rinsing process, the valve plug 200 blocks the drain outlet 101, allowing the inner tub to hold water independently.

[0113] During drainage, the centrifugal slider 300 slides radially from inside to outside along the inner barrel under the action of centrifugal force, and drives the valve plug 200 to move in a direction parallel to the central axis of the inner barrel through the reversing transmission mechanism to open the drainage port 101.

[0114] In this embodiment, no drain holes are provided on the inner tub wall, at least in an area below the maximum water level of the washing machine. During the washing / rinsing process, the valve plug 200 blocks the drain port 101, forming a closed inner tub, thereby allowing the inner tub to independently hold water during the washing / rinsing process. The washing machine may not include an outer tub, but instead may include a water collection device below the inner tub, with the upper edge of the water collection device lower than the opening of the inner tub, thereby expanding the capacity of the inner tub.

[0115] The centrifugal drainage device can be directly installed on the bottom 100 of the inner barrel, or installed on the flange 700 fixedly connected below the bottom 100. The valve plug 200 corresponds to the position of the drain port 101, so that the opening and blocking of the drain port 101 can be controlled.

[0116] During the washing / rinsing process, the inner tub is in a free state, and the valve plug 200 blocks the drain port 101. During drainage, the inner tub is controlled to rotate at a certain speed, thereby generating sufficient centrifugal force to slide the centrifugal slider 300. Under the action of centrifugal force, the centrifugal slider 300 slides radially outward along the tub bottom 100, driving the reversing rod 410 to swing, which in turn drives the valve plug 200 to open the drain port 101 and realize the drainage function.

[0117] In this embodiment of the washing machine, the inner tub can independently hold water during the wash / rinse cycle. This inner tub drainage function is achieved through a centrifugal drain device installed at the bottom of the inner tub. This purely mechanical structure eliminates the need for a separate drive motor for inner tub drainage, as is common in the prior art. This reduces costs and eliminates the need for positioning the inner tub before drainage, simplifying control. The structural design of the centrifugal drain device reduces the area below the drain port 101 when installed in the washing machine, preventing obstruction of the drainage flow and improving drainage efficiency.

[0118] Example 2

[0119] like Figures 1 to 13 As shown, this embodiment provides a flange 700 for installing the centrifugal drainage device in the above-mentioned embodiment 1, and also provides an inner barrel flange assembly, including the flange 700 and the centrifugal drainage device in embodiment 1, which can be installed in the washing machine as an integral structure.

[0120] The flange 700 of this embodiment is as follows Figure 12 and Figure 13 As shown, the edge of the flange 700 is partially recessed inward to form a mounting opening 710. The mounting opening 710 extends a certain length in the circumferential direction of the flange 700. The mounting opening 710 has two first edges 711 at both ends of the mounting opening 710, and a second edge 712 connecting the two first edges 711. The second edge 712 is provided with a first mounting portion 720 that protrudes toward the inside of the mounting opening 710.

[0121] In the inner barrel flange assembly of this embodiment, the centrifugal drainage device is installed in the installation opening 710 of the flange 700, the installation bracket 500 is connected to the first installation part 720, and the centrifugal slider 300 slides relative to the flange 700 under the action of centrifugal force.

[0122] In the above solution, flange 700 forms a mounting opening 710 by partially recessing its edge, providing space for the centrifugal drain device. Furthermore, a first mounting portion 720 protruding from the inside of mounting opening 710 connects to mounting bracket 500, securing the centrifugal drain device to flange 700. The centrifugal drain device is integrally integrated with flange 700, resulting in a compact structure and minimal space. The two can be preassembled to form an inner tub flange assembly, which can then be installed in the washing machine as a whole, simplifying the assembly process.

[0123] Specifically, the first mounting portion 720 described in this embodiment is formed by extending a certain length from the second edge 712 toward the outer periphery of the flange 700 .

[0124] Specifically, the first mounting portion 720 is provided with a first mounting hole 721. Preferably, at least two first mounting holes 721 are provided along the extending direction of the first mounting portion 720.

[0125] In this embodiment, the first mounting portion 720 is specifically connected to the fixing portion 511 on the mounting bracket 500. During assembly, the first mounting portion 720 can be connected and fixed to the fixing portion 511 of the mounting bracket 500 by passing a screw through the first mounting hole 721, thereby achieving the fixation of the mounting bracket 500 on the flange 700.

[0126] In a further solution of this embodiment, two first mounting portions 720 are symmetrically provided in the mounting opening 710 , and the extension directions of the two first mounting portions 720 are parallel to each other.

[0127] Furthermore, the two first edges 711 are parallel to the extending direction of the first mounting portion 720 .

[0128] In the centrifugal drainage device, the centrifugal slider 300 is a plate-shaped structure perpendicular to the central axis of the flange 700 and is matched and installed in the installation opening 710.

[0129] In the above solution, under the action of centrifugal force, the centrifugal slider 300 slides radially relative to the flange 700, and the relative positions of the mounting bracket 500 and the flange 700 remain fixed, that is, the centrifugal slider 300 and the mounting bracket 500 also slide relative to each other in the same direction. The shape of the mounting opening 710 matches the outer profile of the centrifugal slider 300, and the extension directions of the first mounting portion 720 and the first edge 711 are both parallel to the sliding direction of the centrifugal slider 300. During the sliding process of the centrifugal slider 300, the gap between its edge and the first edge 711 of the mounting opening 710, as well as the gap between the first mounting portion 720 and the edge of the mounting bracket 500, remains stable, thus avoiding the instability of the sliding path of the centrifugal slider 300 and achieving a better effect in driving the movement of the valve plug 200.

[0130] In a further solution of this embodiment, the second edge 712 is partially recessed inward to form a drainage avoidance opening 730 , and the first mounting portion 720 is disposed on the second edge 712 in an area outside the drainage avoidance opening 730 .

[0131] Preferably, the two first mounting portions 720 are respectively located on both sides of the drainage avoidance opening 730 .

[0132] When the inner barrel flange assembly is used in a washing machine, the drainage avoidance port 730 is located below the drainage port 101 on the inner barrel, thereby avoiding the drainage water flow. The first mounting portion 720 is arranged in an area outside the drainage avoidance port 730 to prevent obstruction of the drainage water flow and affect the drainage efficiency of the washing machine.

[0133] The two first mounting portions 720 are respectively connected to the two fixing portions 511 of the mounting bracket 500 , so that the mounting bracket 500 can be more stably fixed on the flange 700 .

[0134] In this embodiment, the upper surface of the transition portion 512 connecting the two fixing portions 511 is higher than the upper surface of the fixing portion 511. A space exists between the two first mounting portions 720. The fixing portion 511 is connected to the lower surface of the first mounting portion 720. The transition portion 512, which is higher than the fixing portion 511, can fill the space between the two first mounting portions 720.

[0135] Furthermore, a concave notch 311 is provided on the edge of the centrifugal slider 300 facing the central axis of the flange 700. When the centrifugal slider 300 is located near the central axis of the flange 700, that is, when the centrifugal slider 300 is not subjected to centrifugal force and the valve plug 200 is located in a position to block the drain outlet 101, the mounting bracket 500 is matched with the first mounting portion 720 of the flange 700 and is arranged in the notch 311.

[0136] In the above solution, after the mounting bracket 500 is connected and fixed to the first mounting portion 720, a protrusion of a certain size is formed on the inside of the mounting opening 710. When not subjected to centrifugal force, the centrifugal slider 300 is entirely located inside the mounting opening 710, with its edge facing the central axis of the flange 700 close to the second edge 712 of the mounting opening 710. The provision of the notch 311 can avoid the protrusion formed by the mounting bracket 500 and the first mounting portion 720 on the inside of the mounting opening 710, thereby allowing the centrifugal slider 300 to be installed on a plane flush with the flange 700, without having to be installed above or below the flange 700, thereby reducing the vertical height of the inner barrel flange assembly.

[0137] In this embodiment, the central area 751 of the lower surface of the flange 700 is concave, and the central area 751 and the peripheral area 752 of the lower surface of the flange 700 are connected by an inclined transition surface 753 .

[0138] The second edge 712 of the mounting opening 710 is located inside the central region 751 , and the end of the first edge 711 away from the periphery of the flange 700 is located inside the peripheral region 752 . The first edge 711 and the second edge 712 are connected by a rounded corner 713 .

[0139] The lower surface of the flange 700 outside the fillet 713 is flush with the central area 751 of the lower surface of the flange 700 , and a vertical section 754 is formed on the extension line of the first edge 711 extending away from the periphery of the flange 700 .

[0140] In this embodiment, second mounting portions 740 are formed on the outer sides of the two first edges 711 of the mounting opening 710, and second mounting holes 741 are provided on the second mounting portions 740. The second mounting portions 740 are used to mount the slideway 600, which guides the centrifugal slider 300. Specifically, the second mounting portions 740 and the slideway 600 are connected by screws passing through the second mounting holes 741. The centrifugal slider 300 is slidably mounted on the slideway 600, thereby enabling more stable radial sliding along the flange 700.

[0141] The flange 700 of this embodiment has a partially recessed edge forming a mounting opening 710, which provides space for installing a centrifugal drain device. A first mounting portion 720, projecting inwardly from the mounting opening 710, is provided for connecting with the centrifugal drain device, thereby securing the centrifugal drain device to the flange 700. The flange 700 and centrifugal drain device can be pre-assembled to form an inner tub flange assembly, which can then be installed as a whole in the washing machine, simplifying the assembly process. By modifying the structure of the flange 700, the centrifugal drain device is integrated onto the flange 700, resulting in a compact structure and a small overall size. This reduces the space occupied below the inner tub, facilitating expansion of the inner tub.

[0142] Example 3

[0143] like Figures 1 to 14 As shown, this embodiment is a further limitation of the above-mentioned embodiment 1 or 2, wherein the centrifugal drainage device further includes a slide 600, which is provided with a guide groove 601 parallel to the sliding direction of the centrifugal slider 300. The centrifugal slider 300 is provided with a sliding portion 321 corresponding to the guide groove 601, and the sliding portion 321 is slidably inserted in the guide groove 601.

[0144] In the above scheme, the guide groove 601 on the slide 600 cooperates with the sliding part 321 on the centrifugal slider 300 to guide the sliding direction of the centrifugal slider 300, ensuring that when the centrifugal drainage device rotates with the inner barrel, the centrifugal slider 300 can slide radially outward along the inner barrel, thereby better driving the reversing rod 410 to push the valve plug 200 upward for drainage.

[0145] In a preferred embodiment of the present invention, the centrifugal slider 300 includes a centrifugal block body 310 and a sliding member 320 fixedly connected to the centrifugal block body 310. A sliding portion 321 is formed on the sliding member 320, and the sliding member 320 is slidably mounted on the slideway 600.

[0146] Specifically, in order to provide a larger mass to generate a greater centrifugal force, the centrifugal block body 310 is made of a metal material. If it is directly installed on the slide 600, the friction coefficient between the two is large, and a large friction resistance is generated when the centrifugal slider 300 slides, which hinders the sliding of the centrifugal slider 300 and may cause the drain outlet 101 to be unable to open.

[0147] In this embodiment, sliding members 320 are provided on both sides of the centrifugal block body 310 for slidingly cooperating with the slideway 600. The sliding members 320 are made of a material that can reduce the coefficient of friction, such as plastic. The sliding members 320 are fixed to both ends of the centrifugal block body 310. The coefficient of friction between the sliding members 320 and the slideway 600 is low, which can reduce the sliding friction force on the centrifugal slider 300. As a result, the centrifugal slider 300 can slide under the action of a smaller centrifugal force, thereby controlling the opening of the drain outlet 101.

[0148] In a further solution of this embodiment, an elastic member 610 is further installed between the centrifugal slider 300 and the slide 600, that is, between the sliding member 320 and the slide 600. The elastic member 610 applies a reset force to the centrifugal slider 300, and the direction of action of the reset force is opposite to the direction in which the centrifugal slider 300 slides under the action of the centrifugal force.

[0149] Specifically, the centrifugal slider 300 is provided with a first stop portion 322, and the slideway 600 is provided with a second stop portion 602 spaced apart from the first stop portion 322. Both ends of the elastic member 610 respectively stop against the surfaces opposite to the first stop portion 322 and the second stop portion 602.

[0150] The elastic member 610 in this embodiment is a spring. The elastic member 610 may also be any elastic device that can provide elastic force when compressed.

[0151] When the centrifugal drainage device of this embodiment is installed in a washing machine, the elastic member 610 is normally in a compressed state, which can apply a rightward elastic force to the centrifugal slider 300 to ensure that the valve plug 200 is stably in a position to block the drain outlet 101.

[0152] When draining, the inner barrel rotates at a certain speed, and the centrifugal slider 300 overcomes the elastic force of the elastic member 610 under the action of centrifugal force and slides toward the outer circumference of the barrel bottom 100, and then drives the valve plug 200 to open the drain port 101 upward through the connecting rod 420 and the reversing rod 410.

[0153] As the speed of the inner barrel decreases until it stops, the centrifugal force on the centrifugal slider 300 gradually decreases. When the centrifugal force on the centrifugal slider 300 is less than the elastic force generated by the elastic member 610, the elastic member 610 pushes the first stop portion 322 to the right, causing the centrifugal slider 300 to slide toward the center of the barrel bottom 100, and pulling the valve plug 200 downward through the connecting rod 420 and the reversing rod 410 to block the drain outlet 101.

[0154] In a further embodiment of this embodiment, the centrifugal drainage device is mounted on a flange 700 to form an inner barrel flange assembly. A second mounting portion 740 is provided on the flange 700, and the centrifugal slider 300 is slidably mounted on the second mounting portion 740 along the radial direction of the flange 700. An elastic member 610 is disposed between the centrifugal slider 300 and the second mounting portion 740. Its length is parallel to the sliding direction of the centrifugal slider 300, and the outer periphery of the elastic member 610 is completely covered by the centrifugal slider 300 and the second mounting portion 740.

[0155] In the above solution, the outer periphery of the elastic member 610 is completely covered, protecting it from easy contact with the washing machine's drain. This prevents metal elastic members 610 from rusting due to prolonged exposure to humid conditions, which could lead to elastic failure and an inability to provide a restoring force. Furthermore, this prevents thread scraps from catching on the elastic member 610, preventing it from effectively deforming and causing elastic failure. Because this structure protects the elastic member 610 within the centrifugal drain device from easily losing its elasticity, it extends the device's service life.

[0156] In another solution of this embodiment, a covering structure that can cover the outer peripheral side of the elastic member can also be formed separately by the centrifugal slider or the second mounting portion on the flange, thereby achieving the same effect.

[0157] In a specific solution of this embodiment, the centrifugal slider 300 has a surface opposite to and spaced from the second mounting portion 740 , and the elastic member 610 is installed between the surfaces opposite to the centrifugal slider 300 and the second mounting portion 740 .

[0158] A first covering portion 324 and a second covering portion 325 are formed on the centrifugal slider 300 and / or the second mounting portion 740. The first covering portion 324 is located above the elastic member 610, and the second covering portion 325 is located below the elastic member 610. The first covering portion 324, the second covering portion 325, and the opposing surface of the centrifugal slider 300 and the second mounting portion 740 completely cover the outer circumference of the elastic member 610.

[0159] In detail, the first covering portion 324 and the second covering portion 325 can be entirely formed by the centrifugal slider 300 , or entirely formed by the second mounting portion 740 , or one of the first covering portion 324 and the second covering portion 325 can be formed by the centrifugal slider 300 and the other can be formed by the second mounting portion 740 .

[0160] In a further embodiment of this embodiment, the surface of the centrifugal slider 300 facing the second mounting portion 740 partially protrudes toward the second mounting portion 740, forming a first covering portion 324 and a second covering portion 325. An open clamping groove 326 is formed between the first covering portion 324 and the second covering portion 325. The elastic member 610 is positioned within the clamping groove 326, and the opening of the clamping groove 326 is blocked by the second mounting portion 740.

[0161] A first covering portion 324 and a second covering portion 325 are formed on the centrifugal slider 300, which cooperate with the second mounting portion 740 on the flange 700, so that the outer peripheral side of the elastic member 610 is completely covered by the inner surface of the clamping groove 326 and the surface of the second mounting portion 740 facing the centrifugal slider 300. The structure is simple and easy to implement.

[0162] Preferably, the depth of the clamping groove 326 gradually increases from the sides near the first covering portion 324 and the second covering portion 325 toward the middle, forming a concave curved surface connecting the first covering portion 324 and the second covering portion 325. In this embodiment, a cylindrical spring is used as the elastic member 610. The concave curved surface formed in the clamping groove 326 can better fit the outer circumference of the elastic member 610, thereby stably retaining the elastic member 610 in the clamping groove 326 and preventing displacement.

[0163] In a further solution of this embodiment, the second mounting portion 740 on the flange 700 is at least partially located inside the clamping groove 326 .

[0164] Inserting the edge of the second mounting portion 740 into the clamping groove 326 ensures that the second mounting portion 740 blocks the opening of the clamping groove 326. This prevents the elastic member 610 from being exposed to the outside due to misalignment between the second mounting portion 740 and the centrifugal slider 300 during sliding. Furthermore, the clamping groove 326 extends parallel to the sliding direction of the centrifugal slider 300. The edge of the second mounting portion 740 inserted into the clamping groove 326 assists in guiding the centrifugal slider 300 in conjunction with the slideway 600 during sliding, further ensuring a stable sliding path for the centrifugal slider 300.

[0165] In this embodiment, the slideway 600 is mounted on the second mounting portion 740, and the ends of the elastic member 610 respectively abut against the first abutment portion 322 on the centrifugal slider 300 and the second abutment portion 602 on the slideway 600. By designing the spacing between the first abutment portion 322 and the second abutment portion 602, as well as the initial length of the elastic member 610, the elastic member 610 is compressed and exerts a certain pre-compression force when the valve plug 200 is in a position to block the drain outlet 101, that is, when the centrifugal slider 300 is near the center of the flange 700. This pre-compression force pushes the elastic member 610 rightward, causing the centrifugal slider 300 to apply a downward pulling force to the valve plug 200 via the connecting rod 420 and the reversing rod 410, thereby assisting the valve plug 200 in sealing the drain outlet 101 and achieving a better sealing effect.

[0166] In a specific embodiment of this embodiment, the clamping groove 326 on the centrifugal slider 300 extends along the length of the elastic member 610. One end of the clamping groove 326 is closed to form the first stop portion 322, while the other end of the clamping groove 326 is open. The second stop portion 602 on the slideway 600 blocks the open end of the clamping groove 326. The elastic member 610 is disposed within the clamping groove 326, with its ends respectively abutting against the first stop portion 322 and the second stop portion 602.

[0167] Furthermore, the slide 600 has a slide fixing portion 603 connected to the lower surface of the second mounting portion 740, and a hole is opened in the slide fixing portion 603. The second mounting portion 740 is provided with a second mounting hole 741. By passing a screw through the second mounting hole 741 and the opening in the slide fixing portion 603, the second mounting portion 740 and the slide fixing portion 603 can be connected as a whole, thereby achieving the installation and fixation of the slide 600 and the flange 700.

[0168] The lower edge of the surface of the slide fixing portion 603 facing the inner side of the installation opening 710 protrudes toward the inside of the installation opening 710 to form a support portion 604, and the second stop portion 602 protrudes from the surface of the slide fixing portion 603 facing the inner side of the installation opening 710. The lower surface of the second stop portion 602 and the upper surface of the support portion 604 are spaced apart, and a guide groove 601 is formed therebetween, which cooperates with the sliding portion 321 on the centrifugal slider 300 to achieve a guiding effect on the sliding of the centrifugal slider 300.

[0169] In the centrifugal slider 300 of this embodiment, the sliding portion 321 and the second covering portion 325 are identical structures provided on the centrifugal slider 300. They cooperate with the guide groove 601 on the slideway 600 to guide the centrifugal slider 300. They also shield the lower surface of the elastic member 610 and, in conjunction with the first covering portion 324 and the second mounting portion 740, cover the outer circumference of the elastic member 610. This single structure achieves both functions, simplifying the structure of the centrifugal slider 300 and making the overall structure of the inner barrel flange assembly more compact.

[0170] Specifically, the centrifugal block body 310 in the centrifugal slider 300 is only used to provide mass to generate sufficient centrifugal force. The matching mounting structure of the centrifugal block 300, the second mounting portion 740, and the slideway 600 are all formed on the sliding member 320. In detail, the centrifugal block body 310 extends a certain length along the circumference of the flange 700. The sliding members 320 are arranged at both ends of the centrifugal block body 310 in the longitudinal direction. The first covering portion 324, the second covering portion 325 (i.e., the sliding portion 321), and the first stop portion 322 are all formed by the sliding member 320. The outer peripheral side of the elastic member 610 is completely covered by the sliding member 320 and the second mounting portion 740 on the flange 700.

[0171] In a further solution of this embodiment, the lower surface of one end of the sliding portion 321 close to the central axis of the flange 700 is partially raised to form a limiting boss 323, and the limiting boss 323 is arranged opposite to the end of the support portion 604 close to the central axis of the flange 700.

[0172] In the above solution, the limiting boss 323 cooperates with the support portion 604 to limit the sliding range of the centrifugal slider 300. When the centrifugal slider 300 slides to the point where the limiting boss 323 abuts the right end of the support portion 604, it cannot slide further, thereby accurately controlling the maximum sliding distance of the centrifugal slider 300. Furthermore, when designing the internal structure of the washing machine, sufficient space can be accurately reserved for the sliding of the centrifugal slider 300, preventing the centrifugal slider 300 from scratching or even colliding with the internal structure of the washing machine when sliding to open the drain outlet 101.

[0173] In this embodiment, the centrifugal drain device is integrated with the flange 700 to form an inner drum flange assembly. By providing an elastic member 610 that applies a restoring force to the centrifugal slider 300, the centrifugal slider 300 automatically resets after the centrifugal force disappears, restoring the valve plug 200 to the state of blocking the drain port 101. The structural design of the centrifugal slider 300, flange 700, and slideway 600 ensures that the elastic member 610 is completely enclosed by the surrounding structure and does not come into direct contact with the washing machine's drain water during drainage. This prevents the elastic member 610 from rusting or catching thread debris, thus avoiding elastic failure and extending the service life of the centrifugal drain device and the washing machine.

[0174] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this patent can make slight changes or modifications to equivalent embodiments using the above technical content without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A centrifugal drainage device comprising: Mounting bracket, a valve plug mounted on the mounting bracket so as to be relatively movable; and a driving component for driving the valve plug to move, characterized in that the driving component includes Centrifugal slider, sliding under the action of centrifugal force; A reversing transmission mechanism, connecting the valve plug and the centrifugal slider, includes A connecting rod, one end of which is connected to the centrifugal slider and moves with the centrifugal slider, and an extending direction of the connecting rod is parallel to the sliding direction of the centrifugal slider; A reversing rod, one end of which is hinged to the other end of the connecting rod, moves in the same direction as the centrifugal slider under the drive of the connecting rod, and the other end of the reversing rod is hinged to the valve plug, converting the sliding of the centrifugal slider in one direction into driving the movement of the valve plug in the other direction; The mounting bracket includes base, A connecting frame, used for connecting the base and the valve plug; The vertical projection of the extension direction of the connecting frame on the plane where the centrifugal slider slides coincides with the vertical projection of the extension direction of the connecting rod of the reversing transmission mechanism on the plane where the centrifugal slider slides.

2. The centrifugal drainage device according to claim 1, characterized in that: The connecting frame includes: A guide portion for mounting a valve plug; A connecting portion, used to connect the base and the guide portion; A vertical projection of the extending direction of the connecting portion on the plane where the centrifugal slider slides coincides with a vertical projection of the extending direction of the connecting rod on the plane where the centrifugal slider slides.

3. The centrifugal drainage device according to claim 2, characterized in that: The connecting portion is arranged above the connecting rod.

4. The centrifugal drainage device according to claim 3, characterized in that: The upper surface of the connecting portion is an inwardly concave curved surface whose height gradually decreases from both ends to the middle.

5. The centrifugal drainage device according to claim 3, characterized in that: A groove extending in the same direction as the connecting rod is provided on the lower surface of the connecting portion, and the connecting rod is partially provided in the groove.

6. The centrifugal drainage device according to claim 3, characterized in that: The base comprises: Two fixing parts are provided at intervals and are located on both sides of the guide part respectively, for fixing the base; A transition portion, used to connect the two fixing portions; Two ends of the connecting portion are respectively connected to the transition portion and the guide portion.

7. The centrifugal drainage device according to claim 6, characterized in that: The upper surface of the transition portion is higher than the upper surface of the fixing portion.

8. The centrifugal drainage device according to claim 6, characterized in that: The guide portion has a vertically extending hollow slideway, and the transition portion has an arc-shaped edge on a side facing the guide portion, and the center of the arc-shaped edge is located on the axis of the hollow slideway.

9. The centrifugal drainage device according to any one of claims 1 to 8, characterized in that: The centrifugal drainage device also includes a slideway, which is provided with a guide groove parallel to the sliding direction of the centrifugal slider. A sliding portion is provided on the centrifugal slider corresponding to the guide groove, and the sliding portion is slidably inserted in the guide groove.

10. The centrifugal drainage device according to claim 9, characterized in that: The centrifugal sliding block includes a centrifugal block body and a sliding member fixedly connected to the centrifugal block body; the sliding portion is formed on the sliding member, and the sliding member is slidably installed on the slideway.

11. The centrifugal drainage device according to claim 9, characterized in that: An elastic member is further installed between the centrifugal slider and the slideway, and the elastic member applies a restoring force to the centrifugal slider. The action direction of the restoring force is opposite to the direction in which the centrifugal slider slides under the action of the centrifugal force.

12. The centrifugal drainage device according to claim 11, characterized in that: A first stop portion is provided on the centrifugal slider, and a second stop portion is provided on the slideway and is spaced apart from the first stop portion; both ends of the elastic member respectively stop against surfaces opposite to the first stop portion and the second stop portion.

13. A washing machine comprising an inner tub, wherein a drain outlet is provided at the bottom of the inner tub, wherein: Also includes the centrifugal drainage device according to any one of claims 1 to 12; During washing or rinsing, the valve plug blocks the drain outlet, allowing the inner tub to independently hold water; During the drainage process, the centrifugal slider slides from the inside to the outside along the radial direction of the inner barrel under the action of centrifugal force, and drives the valve plug to move in a direction parallel to the central axis of the inner barrel through the reversing transmission mechanism to open the drainage port.

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