An inner barrel flange assembly and a washing machine

Abstract

The present invention belongs to the technical field of washing machines, and discloses an inner barrel flange assembly and a washing machine. The inner barrel flange assembly includes: a flange plate, a centrifugal drainage device, including a valve plug and a centrifugal slider, the centrifugal slider is slidably arranged on the flange plate, and the centrifugal slider slides under the action of centrifugal force, driving the valve plug to move relative to the flange plate; the centrifugal slider applies a first acting force to the flange plate under the action of centrifugal force; and a balancing device, arranged on the flange plate, applying a second acting force to the flange plate under the action of centrifugal force, and the second acting force is balanced with the first acting force. In the present invention, the centrifugal slider in the centrifugal drainage device slides under the action of centrifugal force, and at the same time applies a first acting force to the flange plate. By arranging a balancing device to apply a second acting force balanced with the first acting force to the flange plate, the rotation of the flange plate is made more stable, and at the same time, the lateral acting force of the flange plate or the inner barrel on the inner barrel shaft in the washing machine can be reduced, preventing damage to the inner barrel shaft.

Description

Technical Field

[0001] The present invention belongs to the technical field of washing machines, and more specifically, relates to an inner barrel flange assembly and a washing machine. Background Art

[0002] Most washing machines in the prior art include an inner barrel and an outer barrel that are interconnected. When the washing machine is working, the outer barrel holds washing water, and the inner barrel holds laundry to be washed. The washing water can exist between the inner barrel and the outer barrel. As the working time of the washing machine increases, dirt and lint carried in the washing water will remain in the space between the inner barrel and the outer barrel, and it is difficult to clean, resulting in the generation of bacteria and odors after long-term use. To solve this problem, the prior art has proposed a washing machine without dehydration holes on the inner barrel, so that the inner barrel can independently hold washing water during the washing process. However, at the same time, the existing drainage methods cannot achieve drainage of the non-porous inner barrel.

[0003] For the above-mentioned washing machine without dehydration holes on the inner barrel, a currently proposed solution is to provide a drainage sealing device on the inner barrel that can open the drainage port by using the centrifugal force generated by the rotation of the inner barrel. For example, Chinese Patent No. 201610767640.4 discloses a washing machine without water between the inner and outer barrels, including: an outer barrel; an inner barrel rotatably disposed inside the outer barrel; during washing / rinsing, the inner barrel holds water, and there is no water between the inner barrel and the outer barrel; a drainage hole is opened at the bottom of the inner barrel, and a drainage sealing device is disposed 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 centrifugal block slides under the action of centrifugal force. Since the centrifugal device is installed on the flange, when the centrifugal block slides under the action of centrifugal force, it will also apply a force along the sliding direction to the flange at the same time. The force will be further transmitted to the inner barrel shaft at the center of the flange, and its acting direction is perpendicular to the axis direction of the inner barrel shaft. When the centrifugal force is large, the inner barrel shaft is easily damaged due to the long-term action of the force perpendicular to its axis.

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

[0006] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and provide an inner barrel flange assembly and a washing machine. A balancing device is provided on the flange, and the balancing device and the centrifugal slider are simultaneously affected by centrifugal force, so that forces with similar magnitudes and opposite directions can be applied to the flange respectively, making the force on the flange basically balanced in its plane, the rotation more stable, and at the same time reducing the horizontal force on the inner barrel shaft to prevent damage to the inner barrel shaft.

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

[0008] An inner barrel flange assembly, comprising:

[0009] A flange plate,

[0010] A centrifugal drainage device, including a valve plug and a centrifugal slider, the centrifugal slider is slidably arranged on the flange plate, the centrifugal slider slides under the action of centrifugal force, driving the valve plug to move relative to the flange plate; the centrifugal slider applies a first acting force to the flange plate under the action of centrifugal force;

[0011] And a balancing device, arranged on the flange plate, applying a second acting force to the flange plate under the action of centrifugal force, the second acting force being balanced with the first acting force.

[0012] Further, the balancing device includes a counterweight arranged on the flange plate, the counterweight being symmetric with respect to the central axis of the flange plate relative to the centrifugal slider.

[0013] Further, the centrifugal slider is a plate-like structure perpendicular to the central axis of the flange plate, and the centrifugal slider of the plate-like structure extends along the circumferential direction of the flange plate with a certain length; the counterweight is a plate-like structure symmetric with respect to the central axis of the flange plate relative to the centrifugal slider.

[0014] Further, the counterweight is fixedly connected to the flange plate;

[0015] Preferably, the counterweight is fixedly attached to the lower surface of the flange plate.

[0016] Further, the counterweight is integrally formed with the flange plate;

[0017] Preferably, the thickness of a local area on the flange plate is greater than the thickness of other areas on the flange plate, forming the counterweight; the local area is symmetric with respect to the central axis of the flange plate relative to the area where the centrifugal slider is located.

[0018] Further, the balancing device includes another set of the centrifugal drainage device, and the two sets of centrifugal drainage devices are symmetrically arranged with respect to the central axis of the flange plate.

[0019] Further, the centrifugal drainage device further includes:

[0020] A commutation transmission mechanism, connecting the valve plug and the centrifugal slider, for converting the sliding of the centrifugal slider along the radial direction of the flange plate into driving the valve plug to move in a direction parallel to the central axis of the flange plate;

[0021] And, a mounting bracket, including

[0022] A base, connected to the flange plate;

[0023] A connecting bracket for connecting the base and the valve plug;

[0024] Preferably, the perpendicular projection of the extending direction of the connecting bracket on the plane where the flange is located coincides with the perpendicular projection of the extending direction of the commutation drive mechanism on the plane where the flange is located.

[0025] Furthermore, a part of the edge of the flange is recessed inward to form a mounting opening. The mounting opening has an arc-shaped edge with the center located on the central axis of the flange, and a first mounting portion protruding inward toward the mounting opening is provided on the arc-shaped edge;

[0026] The centrifugal drainage device is arranged in the mounting opening, and the base of the mounting bracket is connected to the first mounting portion.

[0027] Furthermore, the centrifugal drainage device further includes an elastic member. The elastic member has a certain extension length along the sliding direction of the centrifugal slider, and applies a restoring force to the centrifugal slider in the direction opposite to the sliding direction of the centrifugal slider under the action of the centrifugal force. The outer peripheral side of the elastic member is completely covered by the centrifugal slider and / or the flange.

[0028] Another object of the present invention is to provide a washing machine, including an inner tub. A drain opening is provided on the inner tub, and the inner tub flange assembly described above is further included. The flange is coaxially arranged with the bottom of the inner tub and is fixedly installed on the bottom of the inner tub;

[0029] During the washing / rinsing process, the valve plug blocks the drain opening so that the inner tub can hold water independently during the washing / rinsing process; during the drainage process, the centrifugal slider slides under the action of the centrifugal force, driving the valve plug to open the drain opening for drainage.

[0030] After adopting the above technical solutions, the present invention has the following beneficial effects compared with the prior art.

[0031] In the inner tub flange assembly of the present invention, a balancing device is provided on the flange. When it rotates with the inner tub in a washing machine, the force applied by the balancing device to the flange under the action of the centrifugal force can balance the force applied by the centrifugal slider to the flange under the action of the centrifugal force, so that the force on the flange in its plane is basically balanced, the rotation is more stable, and at the same time, the force on the inner tub shaft in the horizontal direction is reduced, protecting the inner tub shaft from being easily damaged and extending the service life of the washing machine.

[0032] In the inner tub flange assembly of the present invention, a counterweight symmetric to the centrifugal slider with respect to the central axis of the flange is used as the balancing component. The counterweight can be directly fixed on the flange or directly formed by local thickening of the flange. The structure is simple and easy to implement. Both the centrifugal slider and the counterweight are arranged in a plate-like structure, which is structurally compact and saves the space occupied below the inner tub.

[0033] In the inner tub flange assembly of the present invention, two sets of symmetrically arranged centrifugal drainage devices are provided on the flange to achieve the force balance of the flange. Two drainage ports can also be correspondingly provided on the inner tub of the washing machine, and during the drainage process, water is drained outwards through the two drainage ports simultaneously, improving the drainage efficiency of the washing machine.

[0034] The following further describes in detail the specific embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings, as part of the present invention, are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the accompanying drawings in the following description are only some embodiments, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts. In the drawings:

[0036] Figure 1 are schematic structural diagrams of the bottom of the inner tub of the washing machine in Embodiments 1 to 3 of the present invention;

[0037] Figure 2 is the present invention Figure 1 magnified schematic diagram at position A;

[0038] Figure 3 is a bottom view of the bottom of the inner tub of the washing machine in Embodiments 1 to 3 of the present invention;

[0039] Figure 4 is an exploded view of the bottom of the inner tub of the washing machine in Embodiments 1 to 3 of the present invention;

[0040] Figure 5 is a schematic structural diagram of the flange in Embodiments 1 to 3 of the present invention;

[0041] Figure 6 is a bottom view of the flange in Embodiments 1 to 3 of the present invention;

[0042] Figure 7 is a cross-sectional view of the drainage port of the washing machine in the blocked state of the drainage port in the embodiment of the present invention;

[0043] Figure 8 is a cross-sectional view of the drainage port of the washing machine in the open state of the drainage port in the embodiment of the present invention;

[0044] Figure 9 is a schematic structural diagram of the mounting bracket in the embodiment of the present invention;

[0045] Figure 10 is a schematic diagram of another perspective of the mounting bracket in the embodiment of the present invention;

[0046] Figure 11It is a schematic structural diagram of the centrifugal slider in an embodiment of the present invention;

[0047] Figure 12 It is a schematic structural diagram of two slideways in an embodiment of the present invention;

[0048] Figure 13 It is a schematic structural diagram of the bottom of the inner tub of a washing machine in the fourth embodiment of the present invention.

[0049] In the figure: 100, the bottom of the tub; 101, the drain port; 200, the valve plug; 201, the sealing cover; 202, the support rod; 203, the gasket; 300, the centrifugal slider; 310, the centrifugal block body; 311, the notch; 320, the sliding member; 321, the sliding portion; 322, the first abutting portion; 323, the limiting boss; 324, the first covering portion; 325, the second covering portion; 326, the clamping groove; 410, the reversing rod; 420, the connecting rod; 500, the mounting bracket; 510, the base; 511, the fixing portion; 512, the transition portion; 520, the connecting frame; 521, the guiding portion; 5211, the avoiding groove; 522, the connecting portion; 5221, the groove; 600, the slideway; 601, the guiding groove; 602, the second abutting portion; 603, the slideway fixing portion; 604, the supporting portion; 610, the elastic member; 700, the flange; 710, the mounting opening; 711, the first edge; 712, the second edge; 713, the fillet; 720, the first mounting portion; 721, the first mounting hole; 730, the drain avoiding opening; 740, the second mounting portion; 741, the second mounting hole; 751, the central region; 752, the outer peripheral region; 753, the transition surface; 754, the vertical section; 800, the counterweight.

[0050] It should be noted that these drawings and textual descriptions are not intended to limit the scope of the concept of the present invention in any way, but to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Embodiments

[0051] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying 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.

[0052] In the description of the present invention, it should be noted that the orientation or positional relationships indicated by the terms "upper", "lower", "left", "right", "vertical", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0053] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] Embodiment 1

[0055] As Figures 1 to 8 shown, this embodiment provides an inner tub flange assembly and a washing machine including the inner tub flange assembly. Specifically, the inner tub flange assembly includes:

[0056] A flange plate 700,

[0057] A centrifugal drainage device, including a valve plug 200 and a centrifugal slider 300. The centrifugal slider 300 is slidably disposed on the flange plate 700. The centrifugal slider 300 slides under the action of centrifugal force, driving the valve plug 200 to move relative to the flange plate 700; the centrifugal slider 300 exerts a first acting force on the flange plate 700 under the action of centrifugal force;

[0058] And a balancing device, disposed on the flange plate 700, which exerts a second acting force on the flange plate 700 under the action of centrifugal force, and the second acting force balances the first acting force.

[0059] In this embodiment, the centrifugal slider 300 is installed on the flange plate 700 so as to be slidable in the radial direction of the flange plate 700. The centrifugal slider 300 and the valve plug 200 are connected by a transmission mechanism. When the centrifugal slider 300 slides in the radial direction of the flange plate 700, the valve plug 200 is driven to move through the transmission mechanism.

[0060] When the inner tub flange assembly is applied to a washing machine, the flange plate 700 rotates synchronously with the inner tub. During drainage, after controlling the inner tub to reach a certain rotational speed, the centrifugal slider 300 slides radially outward along the flange plate 700 under the action of centrifugal force, driving the valve plug 200 to open the drain port 101 through the transmission mechanism. Since the centrifugal slider 300 is under the action of centrifugal force, it exerts a first acting force on the flange plate 700 in the plane where the centrifugal slider 300 slides, that is, the first acting force acts in the horizontal direction. The flange plate 700 also needs to receive a force that can balance the first acting force in order to rotate stably with the inner tub. Since the flange plate 700 is connected to the bottom of the inner tub 100 and is connected to the inner tub shaft, in the case of not providing a balancing device, the force that balances the first acting force is provided by the inner tub shaft.

[0061] While applying a force to the inner barrel axial flange 700, it will also receive a reaction force from the flange 700. The acting direction of the reaction force is also horizontal, that is, perpendicular to the axis direction of the inner barrel shaft. When the centrifugal force received by the centrifugal slider 300 is relatively large, the reaction force received by the inner barrel shaft is also relatively large, and its acting direction is perpendicular to the axis of the inner barrel shaft, which is likely to cause damage to the inner barrel shaft and affect the service life of the washing machine.

[0062] In the solution of this embodiment, a balancing device is provided on the flange 700. When the balancing device rotates with the flange 700, it is also affected by the centrifugal force, and then applies a second force to the flange 700. By designing the structure and installation position of the balancing device, the first force and the second force are offset from each other, so that while ensuring the stable rotation of the flange 700, the horizontal force on the inner barrel shaft can be reduced, thereby protecting the inner barrel shaft from being easily damaged and extending the service life of the washing machine.

[0063] In the specific solution of this embodiment, the balancing device includes a counterweight 800 provided on the flange 700. The counterweight 800 is symmetric with respect to the central axis of the flange 700 relative to the centrifugal slider 300. By providing a counterweight 800 on the flange 700 with a mass equivalent to that of the centrifugal slider 300 and a symmetric installation position, the force balance of the flange 700 can be achieved, and the structure is simple.

[0064] In a further solution of this embodiment, the centrifugal slider 300 is a plate-like structure perpendicular to the central axis of the flange 700. The centrifugal slider 300 of the plate-like structure extends along the circumferential direction of the flange 700 with a certain length. The counterweight 800 is a plate-like structure symmetric with respect to the central axis of the flange 700 relative to the centrifugal slider 300.

[0065] In the above solution, the centrifugal slider 300 has a plate-like structure, which can be as close as possible to the flange 700, reducing the occupation of the space below the flange 700, that is, the space at the bottom of the inner barrel. At the same time, the volume of the centrifugal slider 300 can be increased by increasing the area of the centrifugal slider 300 laid flat, thereby increasing the mass of the centrifugal slider 300 to provide a greater centrifugal force to ensure that the valve plug 200 can be driven to open the drain port 101, while not additionally occupying the space below the inner barrel, which is beneficial to the expansion of the inner barrel.

[0066] The counterweight 800 is set as a plate-like structure similar to the shape of the centrifugal slider 300 and is installed on the flange 700 at a position symmetric with respect to the central axis of the flange 700 relative to the centrifugal slider 300, which can also reduce the occupation of the space below the inner barrel.

[0067] In a solution of this embodiment, the counterweight 800 and the flange 700 are separately provided and fixedly connected to each other. Preferably, the counterweight 800 is arranged below the flange 700 and fixedly attached to the lower surface of the flange 700. The above arrangement has a simple structure and can save space to the greatest extent, making the structure of the inner barrel flange assembly compact and reducing the occupation of the space below the inner barrel.

[0068] In another solution of this embodiment, the counterweight 800 and the flange 700 are integrally formed, for example, by locally thickening the flange 700.

[0069] Specifically, the thickness of a local area on the flange 700 is greater than the thickness of other areas on the flange 700, forming the counterweight 800. The local area is symmetric with respect to the central axis of the flange 700 to the area where the centrifugal slider 300 is located.

[0070] In the above solution, the structure of the flange 700 itself is modified to make the thickness of its local area larger and the mass more concentrated, which can play the role of the counterweight 800. At the same time, the later process of assembling the flange 700 and the counterweight 800 into one body is omitted, which is convenient for production and manufacturing.

[0071] The washing machine provided in this embodiment includes an inner barrel. A drain port 101 is opened on the inner barrel, and the drain port 101 is specifically arranged on the bottom 100 of the inner barrel. It also includes the inner barrel flange assembly described above. The flange 700 is coaxially arranged with the bottom 100 of the inner barrel and fixedly installed on the bottom 100 of the inner barrel.

[0072] During the washing / rinsing process, the valve plug 200 blocks the drain port 101 to make the inner barrel independently hold water during the washing / rinsing process. During the drainage process, the centrifugal slider 300 slides under the action of centrifugal force, driving the valve plug 200 to open the drain port 101 for drainage.

[0073] In this embodiment, dewatering holes are not provided on at least the area of the barrel wall of the inner barrel below the highest water level of the washing machine. During the washing / rinsing process, the elastic member 610 keeps the centrifugal slider 300 at a position close to the central axis of the flange 700, so that the valve plug 200 blocks the drain port 101 to form a closed inner barrel, thereby realizing that the inner barrel independently holds water during the washing / rinsing process. An outer barrel may not be provided in the washing machine, and only a water collecting device is arranged below the inner barrel. The upper edge height of the water collecting device is lower than the barrel mouth height of the inner barrel, thereby realizing the expansion of the inner barrel.

[0074] During the washing / rinsing process, the inner tub is in a free state, and the valve plug 200 blocks the drain port 101. When draining water, the inner tub is controlled to rotate at a certain speed, so as to generate sufficient centrifugal force to make the centrifugal slider 300 slide. Under the action of the centrifugal force, the centrifugal slider 300 slides radially outward along the flange 700, and then drives the valve plug 200 to move in a direction parallel to the central axis of the flange 700, opening the drain port 101 to achieve the drainage function.

[0075] In the washing machine of this embodiment, a counterweight 800 is arranged on the flange 700, which is symmetric with the centrifugal slider 300 in the centrifugal drainage device with respect to the central axis of the flange 700. During the rotation of the flange 700 with the inner tub, the centrifugal slider 300 and the counterweight 800 are simultaneously subjected to centrifugal forces in opposite directions, and then apply a first force and a second force with equal magnitudes and opposite directions to the flange 700, so that the flange 700 is in force balance in the horizontal direction. Furthermore, the stable rotation of the flange 700 can be ensured, and at the same time, no large force will be exerted on the inner tub shaft in the horizontal direction, playing a certain protective role for the inner tub shaft.

[0076] Embodiment Two

[0077] As Figures 1 to 11 shown, this embodiment is a further limitation of the above-mentioned Embodiment One. The centrifugal drainage device further includes:

[0078] A commutation transmission mechanism, connecting the valve plug 200 and the centrifugal slider 300, for converting the sliding of the centrifugal slider 300 along the radial direction of the flange 700 into driving the valve plug 200 to move in a direction parallel to the central axis of the flange 700;

[0079] And, a mounting bracket 500, including

[0080] A base 510, connected to the flange 700;

[0081] A connecting frame 520, connecting the base 510 and the valve plug 200.

[0082] In the above solution, the valve plug 200 is movably installed on the mounting bracket 500. The centrifugal slider 300 drives the valve plug 200 to move through the commutation transmission mechanism. The commutation transmission mechanism can convert the movement of the centrifugal slider 300 in the horizontal direction into the movement of the valve plug 200 in the vertical direction, so that the valve plug 200 moves up and down to open / block the drain port 101. The drain port 101 is arranged on the bottom 100 of the inner tub. When the drain port 101 is opened, water drains directly downward, and the drainage efficiency is high.

[0083] In a further solution of this embodiment, the vertical projection of the extending direction of the connecting frame 520 on the plane where the flange 700 is located coincides with the vertical projection of the extending direction of the commutation transmission mechanism on the plane where the flange 700 is located.

[0084] In the above solution, when the inner barrel flange assembly is installed on the bottom 100 of the inner barrel, the connecting frame 520 of the mounting bracket 500 and the commutation transmission mechanism are located below the drain port 101. Through the structural design of the centrifugal drainage device, the extending directions of the connecting frame 520 and the commutation transmission mechanism coincide in the plane where the flange 700 is located, that is, the vertical projections on the horizontal plane in the figure coincide, which can reduce the occupation of the area below the drain port 101. When the washing machine drains water, the situation that the drain port 101 is blocked by a large area is avoided, thus ensuring a high drainage efficiency.

[0085] On the other hand, a large amount of lint may be carried in the drainage of the washing machine, and these lint may be hooked and remain at any position where the drainage water flows through. The extending directions of the connecting frame 520 and the commutation transmission mechanism have a coincident projection on the horizontal plane, which can also reduce the area exposed to the drainage water flow, thereby reducing the hooking and residue of lint, and further avoiding the reduction of drainage efficiency caused by hooked lint, or hindering the centrifugal drainage device from acting to close the inner barrel, resulting in a water leakage phenomenon.

[0086] In this embodiment, in order to realize the movement of the centrifugal slider 300 and the valve plug 200 in different directions, the commutation transmission mechanism specifically includes:

[0087] A connecting rod 420, with the left end connected to the centrifugal slider 300 and moving with the centrifugal slider 300;

[0088] A commutation rod 410, with one end hinged to the right end of the connecting rod 420 and moving in the same direction as the centrifugal slider 300 under the drive of the connecting rod 420. The other end of the commutation rod 410 is hinged to the valve plug 200, driving the valve plug 200 to move in the vertical direction.

[0089] The vertical projection of the extending direction of the connecting frame 520 on the plane where the flange 700 is located coincides with the vertical projection of the extending direction of the connecting rod 420 on the plane where the flange 700 is located.

[0090] In the preferred solution of this embodiment, the extending direction of the connecting rod 420 is parallel to the sliding direction of the centrifugal slider 300, that is, both the connecting rod 420 and the connecting frame 520 extend along the radial direction of the flange 700. The above method can ensure that the force exerted by the connecting rod 420 on the commutation rod 410 does not have a component along the circumferential direction of the flange 700, thereby reducing the horizontal component of the force received by the valve plug 200 and reducing the frictional resistance received by the valve plug 200 when moving relative to the mounting bracket 500.

[0091] In this embodiment, as Figure 7 and Figure 8As shown, 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 synchronously to the left with the centrifugal slider 300 through the connecting rod 420. The other end of the reversing rod 410 swings around the end where it is hinged to the connecting rod 420, thereby driving the valve plug 200 to move upward in the vertical direction in the mounting bracket 500.

[0092] Specifically, 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 hinged to the connecting rod 420.

[0093] In a further aspect of this embodiment, the connecting frame 520 includes:

[0094] A guiding portion 521 for mounting the valve plug 200;

[0095] A connecting portion 522 for connecting the base 510 and the guiding portion 521.

[0096] Wherein, the vertical projection of the extending direction of the connecting portion 522 on the plane where the flange 700 is located coincides with the vertical projection of the extending direction of the connecting rod 420 on the plane where the flange 700 is located.

[0097] Furthermore, the connecting rod 420 extends from the centrifugal slider 300 radially from the outside to the inside along the bottom of the barrel 100 and is hinged to the reversing rod 410, such that the distance between the centrifugal slider 300 and the central axis of the flange 700 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. Thus, the centrifugal slider 300 can provide a greater centrifugal force.

[0098] On the other hand, the centrifugal slider 300 in this embodiment can increase its mass by increasing the laying area, specifically by increasing the extending length along the circumferential direction of the flange 700 to increase the laying area. The centrifugal slider 300 has a larger rotation radius, and there is a larger installation space around it, facilitating the increase of the laying area of the centrifugal slider 300.

[0099] In this embodiment, the connecting portion 522 is arranged above the connecting rod 420 and extends in the same direction, thus forming an overlapping structure up and down to reduce the blockage of the drain port 101 when installed in the washing machine, and the structure is simple.

[0100] In a preferred aspect of this embodiment, the upper surface of the connecting portion 522 is a concave curved surface with a gradually decreasing height from both ends to the middle.

[0101] In this embodiment, the valve plug 200 seals the drain port 101 downward from the inside of the inner barrel. To achieve a better sealing effect, the part of the bottom of the barrel 100 located outside the circumference of the drain port 101 bulges downward below the bottom of the barrel 100 to cooperate with the valve plug 200. The position of the guiding portion 521 corresponds to the drain port 101. The base 510 is used for fixing the installation bracket 500 and is arranged outside the circumference of the drain port 101, so that the connecting portion 522 extends from the outside of the circumference of the drain port 101 to near the center of the drain port 101, and the middle area of the connecting portion 522 passes through the area that bulges downward on the bottom of the barrel 100. By setting the upper surface of the connecting portion 522 as a concave curved surface with the height gradually decreasing from both ends to the middle, the area that bulges downward on the bottom of the barrel 100 can be effectively avoided, so that the installation bracket 500 can be installed closer to the bottom of the barrel 100, that is, the flange 700 can be as close as possible to the lower surface of the bottom of the inner barrel, thus making the structure more compact.

[0102] In a further solution of this embodiment, a groove 5221 extending in the same direction as the connecting rod 420 is provided on the lower surface of the connecting portion 522, and a part of the connecting rod 420 is arranged in the groove 5221. The above setting method can make the connecting portion 522 and the connecting rod 420 closer in the vertical direction, design the overall structure of the centrifugal drainage device more compactly, make its longitudinal height as close as possible to the thickness of the flange 700, reduce the volume protruding from the lower surface of the flange 700, and further reduce the occupation of the space below the inner barrel when applied to a washing machine, which is beneficial to the expansion of the inner barrel.

[0103] In this embodiment, the base 510 specifically includes:

[0104] Two fixing portions 511 are arranged at intervals, respectively located on both sides of the guiding portion 521 and connected to the flange 700;

[0105] A transition portion 512 is used to connect the two fixing portions 511.

[0106] Both ends of the connecting portion 522 are respectively connected to the transition portion 512 and the guiding portion 521.

[0107] In this embodiment, the fixing portion 511 of the base 510 is connected to the flange 700 to realize the fixation of the installation bracket 500 relative to the flange 700, and the guiding portion 521 is suspended relative to the fixing portion 511. By setting the fixing portion 511 as two, preferably symmetric relative to the guiding portion 521, the fixing effect on the installation bracket 500 is better and the structure is more firm.

[0108] In a further aspect of this embodiment, the guiding portion 521 has a vertically extending hollow slideway. The transition portion 512 has an arc-shaped edge on the side facing the guiding portion 521, and the center of the arc-shaped edge is located on the axis of the hollow slideway. The radius corresponding to the arc-shaped edge is greater than the radius of the drain opening 101, which can achieve the avoidance of the area below the drain opening 101 by the transition portion 512 and prevent the transition portion 512 from blocking the drain water flow and affecting the drainage efficiency.

[0109] The valve plug 200 in this embodiment specifically includes a sealing cover 201 and a support rod 202. The sealing cover 201 is arranged inside the inner barrel and is used to block / open the drain opening 101. 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 arranged in the hollow slideway of the guiding portion 521 and is hinged to the reversing rod 410. The upper end of the support rod 202 extends out of the guiding portion 521 and is fixedly connected to the sealing cover 201.

[0110] Further, the right side of the guiding portion 521 has an avoidance groove 5211 that extends vertically and has an open lower end. When the reversing rod 410 swings to drive the support rod 202 to move, the lower half of the reversing rod 410 extends out of the guiding portion 521 through the avoidance groove 5211 when the sealing cover 201 blocks the drain opening 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 to be hinged to the support rod 202.

[0111] Preferably, a sealing gasket 203 is fixedly arranged on the lower side of the outer periphery of the sealing cover 201. When the valve plug 200 blocks the drain opening 101, the sealing gasket 203 is in sealing fit with the outer periphery of the drain opening 101 on the inner side of the barrel bottom 100, so as to achieve a better sealing effect.

[0112] Since the sealing cover 201 is located inside the inner barrel and blocks the drain opening 101 from top to bottom, when the inner barrel is filled with water, the water pressure acts on the upper surface of the sealing cover 201 to provide an auxiliary sealing force, and the sealing effect is better. The guiding portion 521 can limit the movement of the support rod 202 in the horizontal direction, so as to effectively convert the horizontal movement of the centrifugal slider 300 into driving the valve plug 200 to move in the vertical direction through the reversing rod 410.

[0113] In a further aspect of this embodiment, to realize the installation of the centrifugal drainage device, a part of the edge of the flange 700 is recessed inward to form an installation opening 710. The installation opening 710 has an arc-shaped edge with the center located on the central axis of the flange 700, and a first installation portion 720 protruding inward from the arc-shaped edge to the installation opening 710 is arranged on the arc-shaped edge.

[0114] The centrifugal drainage device is arranged in the installation opening 710, and the base 510 of the installation bracket 500 is connected to the first installation portion 720.

[0115] Specifically, the flange 700 of this embodiment is as follows Figure 5 and Figure 6 As shown, a mounting opening 710 is formed by partial inward depression of the edge of the flange 700. The mounting opening 710 has a certain extension length in the circumferential direction of the flange 700. The mounting opening 710 has two first edges 711 located at both ends of its extension direction, and a second edge 712 connecting the two first edges 711. The second edge 712 is the above-mentioned arc-shaped edge, and the first mounting portion 720 protrudes inward from the second edge 712 into the mounting opening 710.

[0116] In the above solution, the flange 700 forms a mounting opening 710 by partial inward depression of the edge, providing a mounting space for the centrifugal drainage device. At the same time, the first mounting portion 720 protruding inward from the mounting opening 710 is connected to the mounting bracket 500 in the centrifugal drainage device, realizing the fixation of the centrifugal drainage device and the flange 700. The centrifugal drainage device is integrally integrated on the flange 700, with a compact structure and small occupied space. The two can be pre-assembled into an inner barrel flange assembly and then integrally installed in the washing machine, and the assembly process is simple.

[0117] Specifically, the first mounting portion 720 described in this embodiment is formed by extending a certain length from the second edge 712 to the outer circumference of the flange 700.

[0118] In detail, a first mounting hole 721 is provided on the first mounting portion 720. Preferably, at least two first mounting holes 721 are provided along the extension direction of the first mounting portion 720.

[0119] In this embodiment, the first mounting portion 720 is specifically connected to the fixing portion 511 of the base 510. During assembly, the first mounting portion 720 can be connected and fixed to the fixing portion 511 by passing screws through the first mounting holes 721, thereby realizing the fixation of the mounting bracket 500 on the flange 700. The centrifugal slider 300 is fitted and installed in the mounting opening 710 and can slide radially from the inside to the outside along the flange 700 under the action of centrifugal force, and then drive the valve plug 200 to move upward to open the drain port 101 through the connecting rod 420 and the reversing rod 410.

[0120] In a further solution of this embodiment, two first mounting portions 720 are symmetrically arranged in the mounting opening 710, and the extension directions of the two first mounting portions 720 are parallel to the sliding direction of the centrifugal slider 300.

[0121] Furthermore, both of the two first edges 711 are parallel to the extension direction of the first mounting portion 720.

[0122] In the above solution, under the action of centrifugal force, the centrifugal slider 300 slides radially relative to the flange 700. The relative position between the mounting bracket 500 and the flange 700 remains fixed all the time. That is to say, there is also a relative sliding in the same direction between the centrifugal slider 300 and the mounting bracket 500. The shape of the mounting opening 710 matches the outer contour of the centrifugal slider 300. The extending 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 it and the edge of the first mounting portion 720 and the mounting bracket 500, always remains stable, avoiding the situation where the sliding path of the centrifugal slider 300 is unstable, and achieving a better effect of driving the valve plug 200 to move.

[0123] In a further solution of this embodiment, a drain avoidance opening 730 is formed by partial inward depression of the second edge 712, and the first mounting portion 720 is arranged in the area of the second edge 712 outside the drain avoidance opening 730.

[0124] Preferably, the two first mounting portions 720 are respectively located on both sides of the drain avoidance opening 730.

[0125] When the inner barrel flange assembly is applied to a washing machine, the drain avoidance opening 730 is located below the drain opening 101 on the inner barrel, so as to avoid the drain water flow. Arranging the first mounting portion 720 in the area outside the drain avoidance opening 730 can prevent blocking the drain water flow and affecting the drain efficiency of the washing machine.

[0126] 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.

[0127] 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. There is a spaced space between the two first mounting portions 720. The fixing portion 511 is connected to the lower surface of the first mounting portion 720, and the transition portion 512 arranged higher than the fixing portion 511 can fill the spaced space between the two first mounting portions 720.

[0128] Furthermore, an inward 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 at a position close to the central axis of the flange 700, that is, when the centrifugal slider 300 is not affected by centrifugal force and the valve plug 200 is located at the position of blocking the drain opening 101, the mounting bracket 500 and the first mounting portion 720 of the flange 700 are arranged in a matching manner in the notch 311.

[0129] In the above solution, after the mounting bracket 500 is fixedly connected to the first mounting portion 720, a protruding structure of a certain size is formed inside the mounting opening 710. When the centrifugal slider 300 is not under the action of centrifugal force, the whole is located inside the mounting opening 710, and the edge thereof facing the central axis of the flange 700 is close to the second edge 712 of the mounting opening 710. The notch 311 can avoid the protruding structure formed by the mounting bracket 500 and the first mounting portion 720 inside the mounting opening 710, so that the centrifugal slider 300 can be mounted on a plane flush with the flange 700, without the need to be mounted higher or lower than the flange 700, achieving the effect of reducing the height of the inner tub flange assembly in the longitudinal direction.

[0130] In this embodiment, the central region 751 on the lower surface of the flange 700 is concave, and the central region 751 is connected to the outer peripheral region 752 on the lower surface of the flange 700 through an inclined transition surface 753.

[0131] The second edge 712 of the mounting opening 710 is located inside the central region 751, and one end of the first edge 711 away from the outer periphery of the flange 700 is located inside the outer peripheral region 752. The first edge 711 and the second edge 712 are connected by a fillet 713.

[0132] The lower surface of the flange 700 outside the fillet 713 is flush with the central region 751 of the lower surface of the flange 700, and a vertical section plane 754 is formed on the extension line where the first edge 711 extends away from the outer periphery of the flange 700.

[0133] In this embodiment, through the structural design of the centrifugal drainage device, the extending directions of the connecting portion 522 of the mounting bracket 500 and the connecting rod 420 in the commutation transmission mechanism coincide on the plane where the flange 700 is located, which can reduce the shielding of the area below the drainage port 101 by the centrifugal drainage device. Therefore, during the drainage process of the washing machine, the blocking effect of the centrifugal drainage device on the drainage water flow is reduced, and the drainage efficiency is improved.

[0134] The flange 700 has an edge that is partially concave to form the mounting opening 710, providing space for the installation of the centrifugal drainage device. At the same time, a first mounting portion 720 protruding inwardly of the mounting opening 710 is provided for connecting with the mounting bracket 500 of the centrifugal drainage device, realizing the fixation of the centrifugal drainage device to the flange 700. By transforming the structure of the flange 700, the centrifugal drainage device is integrally arranged on the flange 700, with a compact structure and a small overall volume, which can reduce the occupation of the space below the inner tub and is beneficial to the expansion of the inner tub.

[0135] Embodiment Three

[0136] As Figures 1 to 12As shown in the figure, this embodiment further defines the above-mentioned Embodiment 1 or 2. The centrifugal drainage device further includes an elastic member 610. The elastic member 610 has a certain extension length along the sliding direction of the centrifugal slider 300, and applies a restoring force to the centrifugal slider 300 in the direction opposite to the sliding direction of the centrifugal slider 300 under the action of centrifugal force. The outer peripheral side of the elastic member 610 is completely covered by the centrifugal slider 300 and the flange 700.

[0137] Specifically, second mounting portions 740 are respectively formed on the outer sides of the two first edges 711 of the mounting opening 710. The elastic member 610 is disposed between the two end faces of the centrifugal slider 300 extending along the circumferential direction of the flange 700 and the second mounting portions 740. The outer peripheral side of the elastic member 610 is completely covered by the centrifugal slider 300 and the second mounting portions 740.

[0138] The inner tub flange assembly is applied to a washing machine. During drainage, the inner tub is controlled to rotate at a certain speed. The centrifugal slider 300 slides radially outward along the flange 700 under the action of centrifugal force, and drives the valve plug 200 to move to open the drain port 101 through the reversing transmission mechanism. During the process of the rotational speed of the inner tub decreasing until it stops rotating, the centrifugal force received by the centrifugal slider 300 gradually decreases. When the centrifugal force received by the centrifugal slider 300 is less than the restoring force generated by the elastic member 610, the centrifugal slider 300 slides towards the center of the flange 700 under the action of the restoring force, and drives the valve plug 200 to block the drain port 101 through the reversing transmission mechanism, realizing the automatic reset of the centrifugal drainage device.

[0139] In the above solution, the length direction of the elastic member 610 is parallel to the sliding direction of the centrifugal slider 300, and the outer peripheral side of the elastic member 610 is completely covered by the centrifugal slider 300 and the second mounting portions 740 on the flange 700, so that the elastic member 610 can be protected from easily coming into contact with the drainage of the washing machine. Especially for the elastic member 610 made of metal material, it can avoid the situation that the elastic member 610 is corroded in a humid environment for a long time, resulting in the loss of its elasticity and the inability to provide a restoring force. On the other hand, it can also avoid the situation that lint is hooked on the elastic member 610, resulting in the elastic failure caused by the inability of the elastic member 610 to generate effective deformation. Since the above structure protects the elastic member 610 inside the centrifugal drainage device from easily losing its elasticity, the service life of the centrifugal drainage device is prolonged.

[0140] The elastic member 610 in this embodiment is a spring, which can generate an elastic force as the restoring force of the centrifugal slider 300 when compressed. The elastic member 610 can also be any elastic device that can provide an elastic force when compressed.

[0141] In another solution of this embodiment, a covering structure that can cover the outer peripheral side of the elastic member can also be separately formed by the second mounting portion on the centrifugal slider or the flange, so as to achieve the same effect.

[0142] In the 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 surface of the centrifugal slider 300 opposite to the second mounting portion 740.

[0143] 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 surface of the centrifugal slider 300 opposite to the second mounting portion 740 completely cover the outer peripheral side of the elastic member 610.

[0144] Specifically, the first covering portion 324 and the second covering portion 325 may all be formed by the centrifugal slider 300, or may all be formed by the second mounting portion 740, or one of the first covering portion 324 and the second covering portion 325 may be formed by the centrifugal slider 300 and the other may be formed by the second mounting portion 740.

[0145] In a further solution of this embodiment, the surface of the centrifugal slider 300 facing the second mounting portion 740 bulges locally towards the second mounting portion 740 to form the first covering portion 324 and the second covering portion 325. A clamping groove 326 with an opening is formed between the first covering portion 324 and the second covering portion 325. The elastic member 610 is placed inside the clamping groove 326, and the opening of the clamping groove 326 is blocked by the second mounting portion 740.

[0146] Forming the first covering portion 324 and the second covering portion 325 on the centrifugal slider 300 and cooperating with the second mounting portion 740 on the flange 700 enables the outer peripheral side of the elastic member 610 to be 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, with a simple structure and easy implementation.

[0147] Preferably, the depth of the clamping groove 326 gradually deepens from both sides close to the first covering portion 324 and the second covering portion 325 towards 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. Forming a concave curved surface inside the clamping groove 326 can better fit the outer peripheral surface of the elastic member 610, enabling the elastic member 610 to be stably held in the clamping groove 326 and not prone to displacement.

[0148] In a further solution of this embodiment, at least a part of the second mounting portion 740 on the flange 700 is located inside the clamping groove 326.

[0149] Insert the edge of the second mounting portion 740 into the clamping groove 326. On the one hand, it ensures the blocking effect of the second mounting portion 740 on the opening of the clamping groove 326. During the sliding process of the centrifugal slider 300, the elastic member 610 will not be exposed to the outside due to the misalignment between the second mounting portion 740 and the centrifugal slider 300. On the other hand, the clamping groove 326 extends in a direction parallel to the sliding direction of the centrifugal slider 300. When the edge of the second mounting portion 740 is inserted into the clamping groove 326, it can play a certain guiding role for the centrifugal slider 300 during the sliding process of the centrifugal slider 300, ensuring the stability of the sliding path of the centrifugal slider 300.

[0150] Further, a slideway 600 is fixedly installed on the second mounting portion 740, a first abutting portion 322 is provided on the centrifugal slider 300, and the slideway 600 has a second abutting portion 602 that is opposite to and spaced from the first abutting portion 322. The two ends of the elastic member 610 respectively abut against the opposite surfaces of the first abutting portion 322 and the second abutting portion 602.

[0151] By designing the spacing distance between the first abutting portion 322 and the second abutting portion 602, and the initial length of the elastic member 610, when the valve plug 200 is located at the position blocking the drain port 101, that is, when the centrifugal slider 300 is located close to the central axis of the flange 700, the elastic member 610 has a certain pre-compression force. The elastic member 610 pushes the first abutting portion 322 to the right through the pre-compression force, and then applies a downward acting force to the valve plug 200 through the transmission mechanism, assisting the valve plug 200 to seal the drain port 101, and the sealing effect is better.

[0152] During the sliding process of the centrifugal slider 300 towards the outer circumference of the flange 700, the first abutting portion 322 and the second abutting portion 602 gradually approach, further compressing the elastic member 610 to generate a greater elastic force, and at the same time driving the valve plug 200 to open the drain port 101. When the centrifugal force received by the centrifugal slider 300 gradually disappears, the elastic force generated by the elastic member 610 can be used as the reset force of the centrifugal slider 300, pushing the first abutting portion 322 to the right to make the centrifugal slider 300 slide towards the direction close to the central axis of the flange 700, driving the valve plug 200 to re-block the drain port 101.

[0153] Specifically, the clamping groove 326 extends along the length direction of the elastic member 610. One end of the clamping groove 326 is closed to form the first abutting portion 322, and the other end of the clamping groove 326 is open. The second abutting portion 602 on the slideway 600 blocks the open end of the clamping groove 326. The elastic member 610 is arranged inside the clamping groove 326, and the two ends respectively abut against the first abutting portion 322 and the second abutting portion 602.

[0154] In a further aspect of this embodiment, a guiding groove 601 is formed on the slideway 600, and a sliding portion 321 extending along the sliding direction of the centrifugal slider 300 is provided on the centrifugal slider 300. The sliding portion 321 is slidably inserted into the guiding groove 601.

[0155] In the above solution, the guiding groove 601 on the slideway 600 cooperates with the sliding portion 321 on the centrifugal slider 300 to play a major guiding role during the sliding process of the centrifugal slider 300. Combining with the auxiliary guiding effect of the second mounting portion 740 on the centrifugal slider 300, it is possible to prevent the centrifugal slider 300 from deviating from the sliding path, thereby driving the valve plug 200 to move more stably.

[0156] Specifically, the slideway 600 has a slideway fixing portion 603 connected to the lower surface of the second mounting portion 740, and an opening is formed on the slideway fixing portion 603. A second mounting hole 741 is provided on the second mounting portion 740. By passing a screw through the second mounting hole 741 and the opening on the slideway fixing portion 603, the second mounting portion 740 can be connected to the slideway fixing portion 603 as a whole, realizing the installation and fixation of the slideway 600 and the flange 700.

[0157] The lower edge of the surface of the slideway fixing portion 603 facing the inside of the mounting port 710 protrudes towards the inside of the mounting port 710 to form a supporting portion 604. The second abutting portion 602 protrudes from the surface of the slideway fixing portion 603 facing the inside of the mounting port 710. The lower surface of the second abutting portion 602 is spaced from the upper surface of the supporting portion 604, and a guiding groove 601 is formed therebetween.

[0158] In this embodiment, the sliding portion 321 and the second covering portion 325 are the same structure provided on the centrifugal slider 300. On the one hand, it cooperates with the guiding groove 601 on the slideway 600 to realize the guiding of the centrifugal slider 300. On the other hand, it can be used to shield the lower surface of the elastic member 610, and cooperate with the first covering portion 324 and the second mounting portion 740 to realize the covering of the outer peripheral side of the elastic member 610. The same structure realizes two effect functions, which can simplify the structure of the centrifugal slider 300 and at the same time make the overall structure of the inner barrel flange assembly more compact.

[0159] In a further aspect of this embodiment, a limiting boss 323 is locally protruded from the lower surface of one end of the sliding portion 321 close to the central axis of the flange 700. The limiting boss 323 is disposed opposite to one end of the supporting portion 604 close to the central axis of the flange 700.

[0160] In the above solution, the limiting boss 323 and the supporting part 604 cooperate to limit the slidable range of the centrifugal slider 300. When the centrifugal slider 300 slides to the point where the limiting boss 323 abuts against the right end of the supporting part 604, it cannot slide further, so that the maximum distance that the centrifugal slider 300 can slide to can be accurately controlled. Furthermore, when designing the internal structure of the washing machine, sufficient space can be accurately reserved for the sliding of the centrifugal slider 300, to avoid the centrifugal slider 300 rubbing against or even colliding with the internal structure of the washing machine when the centrifugal slider 300 slides to open the drain port 101.

[0161] In a further solution of this embodiment, the centrifugal slider 300 includes a centrifugal block body 310 and a sliding member 320 fixedly connected to the centrifugal block body 310. The fitting and installation structures of the centrifugal slider 300 with the second installation part 740 and the slideway 600 are both formed on the sliding member 320, and the centrifugal slider 300 is slidably installed on the flange 700 and the slideway 600 through the sliding member 320.

[0162] Specifically, the centrifugal block body 310 extends a certain length along the circumferential direction of the flange 700, the sliding members 320 are arranged at both ends in the length direction of the centrifugal block body 310, the first covering part 324, the second covering part 325 (i.e., the sliding part 321) and the first abutting part 322 are all formed by the sliding member 320, and the outer peripheral side of the elastic member 610 is completely covered by the sliding member 320 and the second installation part 740 on the flange 700.

[0163] To provide a greater 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 slideway 600, the friction coefficient between the two is relatively large, and a large frictional resistance will be generated when the centrifugal slider 300 slides, which will hinder the sliding of the centrifugal slider 300 and may cause the drain port 101 to be unable to open.

[0164] In this embodiment, sliding members 320 are arranged on both sides of the centrifugal block body 310 for sliding cooperation with the slideway 600. The sliding member 320 is made of a material that can reduce the friction coefficient. For example, a sliding member 320 made of plastic can be selected and fixed at both ends of the centrifugal block body 310. The friction coefficient between the sliding member 320 and the slideway 600 is relatively small, which can reduce the sliding friction force received by the centrifugal slider 300. Furthermore, the centrifugal slider 300 can be slid under a smaller centrifugal force to control the opening of the drain port 101.

[0165] In this embodiment, by providing an elastic member 610 that applies a restoring force to the centrifugal slider 300, the centrifugal slider 300 can automatically reset after the centrifugal force disappears, restoring the state where the valve plug 200 blocks the drain port 101. Through the structural design of the centrifugal slider 300, the flange 700, and the slideway 600, the elastic member 610 is completely covered by the surrounding structures and will not come into direct contact with the washing machine drain during the drainage process, thereby preventing the elastic member 610 from rusting or snagging lint, avoiding the elastic failure of the elastic member 610, and thus extending the service life of the centrifugal drainage device and the washing machine.

[0166] Embodiment Four

[0167] As Figure 13 shown, the difference between this embodiment and the above-described Embodiments 1 to 3 is that: the balancing device includes another set of centrifugal drainage devices, and the two sets of centrifugal drainage devices are symmetrically arranged with respect to the central axis of the flange 700.

[0168] In this embodiment, two sets of identical centrifugal drainage devices are symmetrically arranged on the flange 700. When the flange 700 rotates with the inner tub, the two symmetrically arranged centrifugal sliders 300 slide radially outward along the flange 700 at the same time, thereby applying equal and opposite acting forces to the flange 700 respectively, achieving the force balance of the flange 700 in the horizontal direction.

[0169] Furthermore, as Figures 7 to 13 shown, two drain ports 101 are symmetrically arranged on the bottom 100 of the inner tub with respect to the axis of the inner tub, and are respectively matched with the two sets of centrifugal drainage devices on the flange 700.

[0170] During the washing / rinsing process, the two drain ports 101 are respectively blocked by their corresponding valve plugs 200, so that the inner tub can hold water independently. During drainage, the inner tub rotates at a certain speed, and the two symmetrically arranged centrifugal sliders 300 slide radially outward synchronously under the action of centrifugal force, thereby driving the two valve plugs 200 to move upward and opening the drain ports 101 for drainage at the same time. Since the number of drain ports 101 is increased from one to two, the drainage efficiency is improved. At the same time, the acting forces applied by the two centrifugal sliders 300 to the flange 700 can balance each other, enabling the flange 700 to rotate smoothly without additional force in the horizontal direction.

[0171] Compared with the above-described Embodiment 1, in this embodiment, since two sets of identical centrifugal drainage devices are arranged on the flange 700, with one set of centrifugal drainage devices serving as the balancing device for the other set, it is easier to control so that the acting forces applied by the centrifugal drainage device and the balancing device to the flange 700 can cancel each other out, and thus the effect of controlling the force balance of the flange 700 is better.

[0172] In a further solution of this embodiment, to achieve the installation of two sets of centrifugal drainage devices on the flange 700, the flange 700 in this embodiment is also configured to be symmetric about its central axis. That is, two concave installation ports are symmetrically formed on the flange 700, and the two sets of centrifugal drainage devices are respectively installed in one of the installation ports.

[0173] Correspondingly, the installation brackets 500 in each set of centrifugal drainage devices are respectively connected to the first installation parts in the installation ports, and the chutes 600 are respectively installed on the second installation parts at both ends of the installation ports.

[0174] In another solution of this embodiment, the balance device can also be composed only of a centrifugal slider, a chute, and an elastic member installed between the two.

[0175] Specifically, a drainage port is still opened on the bottom of the inner barrel. The flange is symmetrically provided with two installation ports. One of the installation ports installs the centrifugal drainage device, and the valve plug thereof cooperates with the drainage port to control the opening and blocking of the drainage port. The chutes are installed at both ends of the other installation port, and a slidable centrifugal slider is arranged between the two chutes. An elastic member for resetting the centrifugal slider is arranged between the centrifugal slider and the chute. The respective structures of the centrifugal slider, the chute, and the elastic member, as well as the assembly structure of the three, are exactly the same as those in the centrifugal drainage device.

[0176] In the centrifugal drainage device, the mass is mainly concentrated on the centrifugal slider 300. When the centrifugal drainage device rotates with the flange 700, the force exerted on the flange 700 by other parts except the centrifugal slider 300 can be ignored compared with the first force exerted by the centrifugal slider 300 on the flange 700. When setting the balance device, only the centrifugal slider that plays a major role in exerting force, the chute for guiding its sliding, and the elastic member for its reset are retained, which can effectively balance the force in the horizontal direction without setting a reversing transmission mechanism and connecting the valve plug. In this way, the structure of the balance device is simpler, which simplifies the structure of the inner barrel flange assembly and also simplifies its assembly process.

[0177] In this embodiment, by setting two sets of centrifugal drainage devices symmetric about the central axis of the flange 700 on the flange 700, or by setting symmetrically slidable centrifugal sliders at symmetric positions of the centrifugal drainage device, the balance effect of the force on the flange 700 in the horizontal direction is better, further reducing the horizontal force exerted on the inner barrel shaft and improving the protection effect on the inner barrel shaft.

[0178] The above are only the preferred embodiments of the present invention, and there is no limitation to the present invention in any form. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art of this patent can make some changes or modifications to equivalent embodiments with equivalent changes within the scope of the technical solution of the present invention by using the technical content prompted above. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the present invention.

Claims

1. An inner barrel flange assembly, characterized in that, Comprising: A flange, with a locally concave edge forming a mounting opening. The mounting opening has an arc-shaped edge with its center on the central axis of the flange, and a first mounting portion protruding inwardly towards the mounting opening is provided on the arc-shaped edge. A centrifugal drainage device, including a valve plug and a centrifugal slider. The centrifugal slider is slidably arranged on the flange. The centrifugal slider slides under the action of centrifugal force, driving the relative movement between the valve plug and the flange. The centrifugal slider exerts a first acting force on the flange under the action of centrifugal force. And a balancing device, arranged on the flange, which exerts a second acting force on the flange under the action of centrifugal force, and the second acting force balances the first acting force. The centrifugal drainage device further includes a commutation transmission mechanism and a mounting bracket. The commutation 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. The extending direction of the connecting rod is parallel to the sliding direction of the centrifugal slider. A commutation rod, one end of which is hinged to the other end of the connecting rod and moves in the same direction as the centrifugal slider under the drive of the connecting rod. The other end of the commutation rod is hinged to the valve plug, converting the sliding of the centrifugal slider along the radial direction of the flange into the movement of driving the valve plug along the direction parallel to the central axis of the flange. The mounting bracket includes A base, connected to the flange. A connecting frame, connecting the base and the valve plug. The vertical projection of the extending direction of the connecting frame on the plane where the flange is located coincides with the vertical projection of the extending direction of the connecting rod on the plane where the flange is located. The centrifugal drainage device is arranged in the mounting opening on the flange, and the base of the mounting bracket is connected to the first mounting portion.

2. The inner barrel flange assembly according to claim 1, characterized in that, The balancing device includes a counterweight arranged on the flange, and the counterweight is symmetric with respect to the central axis of the flange relative to the centrifugal slider.

3. The inner barrel flange assembly according to claim 2, characterized in that, The centrifugal slider is a plate-like structure perpendicular to the central axis of the flange, and the plate-like centrifugal slider extends along the circumferential direction of the flange with a certain length. The counterweight is a plate-like structure symmetric with respect to the central axis of the flange relative to the centrifugal slider.

4. The inner barrel flange assembly according to claim 3, characterized in that, The counterweight is fixedly connected to the flange.

5. The inner barrel flange assembly according to claim 4, characterized in that, The counterweight is fixedly attached to the lower surface of the flange.

6. The inner barrel flange assembly according to claim 3, wherein, The counterweight is integrally formed with the flange.

7. The inner barrel flange assembly according to claim 6, characterized in that, The thickness of a local area on the flange is greater than the thickness of other areas on the flange, forming the counterweight. The local area is symmetric with respect to the central axis of the flange relative to the area where the centrifugal slider is located.

8. The inner barrel flange assembly according to claim 1, characterized in that, The balancing device includes another set of the centrifugal drainage device, and the two sets of centrifugal drainage devices are symmetrically arranged with respect to the central axis of the flange.

9. The inner barrel flange assembly according to any one of claims 1-8, characterized in that The centrifugal drainage device further includes an elastic member. The elastic member has a certain extension length along the sliding direction of the centrifugal slider, and exerts a restoring force on the centrifugal slider in the direction opposite to the sliding direction of the centrifugal slider under the action of centrifugal force. The outer peripheral side of the elastic member is completely covered by the centrifugal slider and / or the flange.

10. A washing machine, comprising an inner tub, and a drain opening is formed on the inner tub, characterized in that, It further includes an inner barrel flange assembly according to any one of claims 1 - 9. The flange is coaxially arranged with the bottom of the inner barrel and is fixedly installed on the bottom of the inner barrel. During the washing or rinsing process, the valve plug blocks the drain opening, enabling the inner barrel to hold water independently during the washing or rinsing process. During the drainage process, the centrifugal slider slides under the action of centrifugal force, driving the valve plug to open the drain opening for drainage.

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