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 tub flange assembly and a washing machine. The inner tub flange assembly includes a flange plate and a centrifugal drainage device. An installation part is provided on the flange plate. The centrifugal drainage device includes: a centrifugal slider, which is installed on the installation part and slides relative to the flange plate under the action of centrifugal force; a valve plug, which moves relative to the flange plate driven by the centrifugal slider; an elastic member, which 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 centrifugal force, and its outer peripheral side is completely covered by the centrifugal slider and / or the installation part. The inner tub flange assembly of the present invention can be applied to a washing machine. By completely covering the outer peripheral side of the elastic member, the elastic member can be protected from contacting the drainage of the washing machine, avoiding the failure caused by the rusting of the elastic member or the snagging of lint, resulting in the situation that the centrifugal drainage device cannot seal the inner tub.

Description

Technical Field

[0001] The present invention belongs to the technical field of washing machines, and 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 contains washing water, and the inner barrel contains the 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 are 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 contain washing water during the washing process. However, at the same time, the existing drainage method cannot achieve the drainage of the inner barrel without holes.

[0003] For the 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, so as to achieve the closure of the inner barrel during the washing and rinsing processes. When drainage is required, the drainage port can be opened to drain water outwards. In the above solution, in order to achieve the automatic reset of the drainage sealing device after drainage is completed, it is usually necessary to connect a spring or a similar part to the valve plug of the drainage sealing device or the centrifugal block connected to the valve plug. When the centrifugal force is insufficient, the spring can drive the valve plug to re-seal the drainage port, or drive the centrifugal block to move in the reverse direction, and then drive the valve plug to seal the drainage port.

[0004] However, the drainage of the inner barrel generally passes through the drainage sealing device, which may cause the spring in the drainage sealing device to be in a humid environment for a long time, which may cause a certain degree of rusting of the spring made of metal. At the same time, the detergent contained in the drainage may further exacerbate the degree of rusting. On the other hand, the lint carried in the drainage may also remain on the spring. The reset force provided by the spring in the drainage sealing device and the centrifugal force that can be generated by the centrifugal block when rotating with the inner barrel generally require a strict matching relationship. The residue of lint on the spring and the rusting of the spring itself will cause a change in the magnitude of the reset force it can provide, and even the situation of elastic loss may occur, which may lead to the failure of the drainage sealing device and affect the use of the washing machine.

[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. In the inner barrel flange assembly, a centrifugal drainage device is installed on the flange plate, and the outer peripheral side of the elastic member is completely covered. When applied to a washing machine, it can protect the elastic member from contacting the drainage of the washing machine, avoiding the failure caused by corrosion or hooking of lint on the elastic member, and extending the service life of the centrifugal drainage device.

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

[0008] An inner barrel flange assembly includes a flange plate and a centrifugal drainage device. An installation part is provided on the flange plate, and the centrifugal drainage device includes:

[0009] A centrifugal slider is installed on the installation part and slides relative to the flange plate under the action of centrifugal force;

[0010] A valve plug moves relative to the flange plate driven by the centrifugal slider;

[0011] An elastic member has a certain extension length along the sliding direction of the centrifugal slider, applies a restoring force to the centrifugal slider in the direction opposite to the sliding direction of the centrifugal slider under the action of centrifugal force, and its outer peripheral side is completely covered by the centrifugal slider and / or the installation part.

[0012] Further, the centrifugal slider has a surface opposite to and spaced from the installation part, and the elastic member is installed between the surfaces of the centrifugal slider and the installation part that are opposite to each other;

[0013] A first covering part is formed on the centrifugal slider and / or the installation part, located above the elastic member;

[0014] And a second covering part, located below the elastic member;

[0015] The first covering part, the second covering part, and the surface of the centrifugal slider opposite to the installation part completely cover the outer peripheral side of the elastic member.

[0016] Further, the surface of the centrifugal slider facing the installation part bulges locally towards the installation part to form a first covering part and a second covering part; a clamping groove with an opening is formed between the first covering part and the second covering part, the elastic member is placed inside the clamping groove, and the opening of the clamping groove is blocked by the installation part;

[0017] Preferably, the depth of the clamping groove gradually deepens from both sides close to the first covering part and the second covering part towards the middle, forming a concave curved surface connecting the first covering part and the second covering part.

[0018] Further, at least part of the installation part on the flange plate is located inside the clamping groove.

[0019] Further, a mounting opening is formed by partial inward concavity of the edge of the flange, and the centrifugal slider is fitted in the mounting opening, and a portion of the flange located outside the periphery of the mounting opening forms the mounting portion;

[0020] Preferably, the mounting opening extends circumferentially along the flange with a certain length, and two mounting portions are provided, respectively located outside both ends in the length extension direction of the mounting opening; the mutually facing edges of the two mounting portions are parallel to each other.

[0021] Further, a slideway is fixedly mounted on the mounting portion, a first abutting portion is provided on the centrifugal slider, and the slideway has a second abutting portion spaced relatively from the first abutting portion; both ends of the elastic member respectively abut against the mutually facing surfaces of the first abutting portion and the second abutting portion.

[0022] Further, a concave clamping groove is provided on the surface of the centrifugal slider facing the mounting portion, the clamping groove extends along the length direction of the elastic member, and the elastic member is arranged in the clamping groove;

[0023] One end of the clamping groove is closed to form the first abutting portion, and the other end of the clamping groove is open; the second abutting portion on the slideway blocks the open end of the clamping groove.

[0024] Further, a guiding groove is formed on the slideway, a sliding portion extending along the sliding direction of the centrifugal slider is provided on the centrifugal slider, and the sliding portion is slidably inserted into the guiding groove;

[0025] Preferably, the slideway has a slideway fixing portion connected to the lower surface of the mounting portion, and a supporting portion is formed by the downward edge of the surface of the slideway fixing portion facing the inner side of the mounting opening protruding towards the inside of the mounting opening;

[0026] The second abutting portion protrudes from the surface of the slideway fixing portion facing the inner side of the mounting opening, and the lower surface of the second abutting portion is spaced from the upper surface of the supporting portion, and the guiding groove is formed between the two.

[0027] Further, a limiting boss is formed by partial protrusion of the lower surface of one end of the sliding portion close to the central axis of the flange, and the limiting boss is arranged opposite to one end of the supporting portion close to the central axis of the flange.

[0028] Another object of the present invention is to provide a washing machine, including an inner tub, a drain opening is formed on the inner tub, and further including the inner tub flange assembly as described above, the flange is coaxially arranged with the bottom of the inner tub and is fixedly mounted on the bottom of the inner tub;

[0029] During the washing / rinsing process, under the action of the restoring force of the elastic member, the centrifugal slider drives the valve plug to block the drain port, enabling the inner tub to hold water independently during the washing / rinsing process; during the drainage process, the centrifugal slider is affected by the centrifugal force to overcome the restoring force of the elastic member and moves radially outward along the flange, driving the valve plug to open the drain port for drainage.

[0030] After adopting the above technical solution, 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 centrifugal drainage device is installed on the flange, and a covering structure is formed through the centrifugal slider and / or the mounting portion on the flange to completely cover the outer peripheral side of the elastic member for applying a restoring force to the centrifugal slider. When applied to a washing machine, it can protect the elastic member from contacting the drainage of the washing machine, avoiding corrosion of the elastic member in a humid environment or elastic failure caused by lint hooking on the elastic member, thereby extending the service life of the centrifugal drainage device.

[0032] In the inner tub flange assembly of the present invention, a first covering portion and a second covering portion are formed on the centrifugal slider, which cooperate with the mounting portion on the flange to completely cover the outer peripheral side of the elastic member by the clamping groove and the mounting portion. The structure is simple and easy to implement. Part of the mounting portion is arranged inside the clamping groove. On the one hand, it strengthens the stability of the covering structure, and on the other hand, it can also play a guiding role for the centrifugal slider through the cooperation of the clamping groove and the mounting portion to ensure the stable sliding of the centrifugal slider on the flange.

[0033] In the inner tub flange assembly of the present invention, a mounting port is formed by partially concaving the edge of the flange for mounting the centrifugal slider. The overall structure is more compact, which can reduce the overall volume. Thus, when installed inside the washing machine, it reduces the occupation of the space below the inner tub, which is beneficial to the expansion of the inner tub. A slideway with a guiding groove is also connected to the mounting portion, which can play a main guiding role for the centrifugal slider to avoid the centrifugal slider deviating from the sliding path.

[0034] In the washing machine of the present invention, the elastic member applies a restoring force to the centrifugal slider during the washing / rinsing process, and the centrifugal slider transmits the force to the valve plug to block the drain port, resulting in better sealing effect. During drainage, by controlling the inner tub to rotate at a certain speed, a centrifugal force that can overcome the restoring force can be generated, which can drive the centrifugal slider to move, thereby driving the valve plug to move to open the drain port, without the need to position the inner tub, and the control method is simple.

[0035] The following further describes in detail the specific embodiments of the present invention with reference to the accompanying drawings. Description of the Drawings

[0036] 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 unduly limit 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 accompanying drawings:

[0037] Figure 1 is an exploded view of the bottom of the inner tub of the washing machine in an embodiment of the present invention;

[0038] Figure 2 is a schematic structural diagram of the centrifugal slider in an embodiment of the present invention;

[0039] Figure 3 is a schematic structural diagram of the flange in an embodiment of the present invention;

[0040] Figure 4 is a bottom view of the flange in an embodiment of the present invention;

[0041] Figure 5 is a schematic structural diagram of two slideways in an embodiment of the present invention;

[0042] Figure 6 is a schematic diagram of the bottom of the inner tub of the washing machine in a state where the drain opening is closed in an embodiment of the present invention;

[0043] Figure 7 is the present invention Figure 6 an enlarged schematic view of part A;

[0044] Figure 8 is a cross-sectional view of the bottom of the inner tub of the washing machine in a state where the drain opening is closed in an embodiment of the present invention;

[0045] Figure 9 is the present invention Figure 8 an enlarged schematic view of part B;

[0046] Figure 10 is a schematic diagram of the bottom of the inner tub of the washing machine in a state where the drain opening is open in an embodiment of the present invention;

[0047] Figure 11 is a cross-sectional view of the bottom of the inner tub of the washing machine in a state where the drain opening is open in an embodiment of the present invention;

[0048] Figure 12 is the present invention Figure 11 an enlarged schematic view of part C;

[0049] Figure 13 is a schematic structural diagram of the mounting bracket in an embodiment of the present invention;

[0050] Figure 14It is a schematic diagram of another perspective of the mounting bracket in the embodiment of the present invention.

[0051] In the figure: 100, bottom of the barrel; 101, drain port; 200, valve plug; 201, sealing cover; 202, support rod; 203, gasket; 300, centrifugal slider; 310, centrifugal block body; 311, notch; 320, sliding member; 321, sliding part; 322, first abutting part; 323, limiting boss; 324, first covering part; 325, second covering part; 326, clamping groove; 410, reversing rod; 420, connecting rod; 500, mounting bracket; 510, base; 511, fixing part; 512, transition part; 520, connecting frame; 521, guiding part; 5211, avoiding groove; 522, connecting part; 5221, groove; 600, slideway; 601, guiding groove; 602, second abutting part; 603, slideway fixing part; 604, supporting part; 610, elastic member; 700, flange; 710, mounting port; 711, first edge; 712, second edge; 713, fillet; 720, first mounting part; 721, first mounting hole; 730, drain avoiding opening; 740, second mounting part; 741, second mounting hole; 751, central area; 752, peripheral area; 753, transition surface; 754, vertical section.

[0052] It should be noted that these drawings and text 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 implementation manners

[0053] 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.

[0054] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is 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 cannot be construed as a limitation of the present invention.

[0055] 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.

[0056] Embodiment 1

[0057] As Figures 1 to 12 shown, the inner barrel flange assembly described in this embodiment includes a flange 700 and a centrifugal drainage device. A second installation portion 740 is provided on the flange 700. The centrifugal drainage device includes:

[0058] A centrifugal slider 300, which is installed on the second installation portion 740 and slides relative to the flange 700 under the action of centrifugal force;

[0059] A valve plug 200, which moves relative to the flange 700 under the drive of the centrifugal slider 300;

[0060] An elastic member 610, which 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, and its outer peripheral side is completely covered by the centrifugal slider 300 and the second installation portion 740.

[0061] In this embodiment, the centrifugal slider 300 is slidably installed on the flange 700 along the radial direction of the flange 700. The centrifugal slider 300 and the valve plug 200 are connected by a transmission mechanism. When the centrifugal slider 300 slides along the radial direction of the flange 700, the valve plug 200 is driven to move through the transmission mechanism.

[0062] The inner barrel flange assembly is applied to a washing machine. During drainage, by controlling the inner barrel 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 open the drain port 101 through the transmission mechanism. During the process of the rotation speed of the inner barrel 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 transmission mechanism, realizing the automatic reset of the centrifugal drainage device.

[0063] In this embodiment, through the cooperation of the centrifugal slider 300 and the second mounting portion 740, the outer peripheral side of the elastic member 610 is completely covered, which can protect the elastic member 610 from easily coming into contact with the drainage of the washing machine. For the elastic member 610 made of metal, it can avoid the situation that the elastic member 610 rusts 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 prevent lint from being hooked on the elastic member 610, resulting in elastic failure caused by the inability of the elastic member 610 to produce 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 extended.

[0064] 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.

[0065] 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.

[0066] 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 surfaces of the centrifugal slider 300 opposite to the second mounting portion 740.

[0067] A first covering portion 324 is formed on the centrifugal slider 300 and / or the second mounting portion 740, located above the elastic member 610;

[0068] And a second covering portion 325, located below the elastic member 610.

[0069] 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.

[0070] Specifically, the first covering portion 324 and the second covering portion 325 can be all formed by the centrifugal slider 300, or can be all 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.

[0071] 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, and 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.

[0072] A first covering portion 324 and a second covering portion 325 are formed on the centrifugal slider 300 and 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.

[0073] 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. The formation of the concave curved surface in the clamping groove 326 can better fit the outer peripheral surface of the elastic member 610, so that the elastic member 610 is stably held in the clamping groove 326 and is not prone to displacement.

[0074] 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.

[0075] 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. The insertion of the edge of the second mounting portion 740 into the clamping groove 326 can play a certain guiding role during the sliding process of the centrifugal slider 300 and ensure the stability of the sliding path of the centrifugal slider 300.

[0076] In a further solution of this embodiment, a part of the edge of the flange 700 is recessed inward to form a mounting opening 710. The centrifugal slider 300 is fitted and installed in the mounting opening 710, and a part of the flange 700 located outside the periphery of the mounting opening 710 forms the second mounting portion 740.

[0077] Preferably, the mounting opening 710 extends along the circumferential direction of the flange 700 with a certain length. Two second mounting portions 740 are provided, respectively located on the outer sides of both ends of the length extension direction of the mounting opening 710. The mutually opposite edges of the two second mounting portions 740 are parallel to each other.

[0078] In the above solution, the flange 700 forms an installation opening 710 by locally concaving at the edge, providing an installation space for the centrifugal drainage device, especially the centrifugal slider 300 therein. The centrifugal slider 300 is set as a flat plate structure and can be installed on a plane flush with the flange 700 without additionally occupying the space above or below the flange 700. The overall structure is compact, occupies a small space, and can reduce the space occupied by it under the inner barrel of the washing machine, thus facilitating the expansion design of the inner barrel.

[0079] Further, a slideway 600 is fixedly installed on the second installation part 740. A first abutting part 322 is arranged on the centrifugal slider 300. The slideway 600 has a second abutting part 602 opposite to and spaced from the first abutting part 322. Two ends of the elastic member 610 respectively abut against opposite surfaces of the first abutting part 322 and the second abutting part 602.

[0080] By designing the spacing distance between the first abutting part 322 and the second abutting part 602, and the initial length of the elastic member 610, when the valve plug 200 is located at the position of blocking the drain port 101, that is, when the centrifugal slider 300 is located at a position close to the central axis of the flange 700, the elastic member 610 has a certain pre-compressive force. The elastic member 610 pushes the first abutting part 322 to the right through the pre-compressive force, and then applies a 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.

[0081] During the process of the centrifugal slider 300 sliding towards the outer periphery of the flange 700, the first abutting part 322 and the second abutting part 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, and the centrifugal slider 300 is pushed to slide towards the direction close to the central axis of the flange 700 by pushing the first abutting part 322 to the right, driving the valve plug 200 to re-block the drain port 101.

[0082] 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 part 322, and the other end of the clamping groove 326 is open. The second abutting part 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 two ends respectively abut against the first abutting part 322 and the second abutting part 602.

[0083] In a further solution of this embodiment, a guiding groove 601 is formed on the slideway 600. A sliding part 321 extending along the sliding direction of the centrifugal slider 300 is arranged on the centrifugal slider 300, and the sliding part 321 is slidably inserted into the guiding groove 601.

[0084] In the above solution, the guiding groove 601 on the slideway 600 cooperates with the sliding part 321 on the centrifugal slider 300, playing a main guiding role during the sliding process of the centrifugal slider 300. Combining with the auxiliary guiding effect of the second mounting part 740 on the centrifugal slider 300, it can prevent the centrifugal slider 300 from deviating from the sliding path, thereby driving the valve plug 200 to move more stably.

[0085] Specifically, the slideway 600 has a slideway fixing part 603 connected to the lower surface of the second mounting part 740, and the slideway fixing part 603 is perforated. A second mounting hole 741 is provided on the second mounting part 740. By passing a screw through the second mounting hole 741 and the perforation on the slideway fixing part 603, the second mounting part 740 can be connected to the slideway fixing part 603 as a whole, realizing the installation and fixation of the slideway 600 and the flange 700.

[0086] The lower edge of the surface of the slideway fixing part 603 facing the inside of the mounting port 710 protrudes into the mounting port 710 to form a supporting part 604. The second abutting part 602 protrudes from the surface of the slideway fixing part 603 facing the inside of the mounting port 710. The lower surface of the second abutting part 602 is spaced from the upper surface of the supporting part 604, and a guiding groove 601 is formed therebetween.

[0087] In this embodiment, the sliding part 321 and the second covering part 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 block the lower surface of the elastic member 610, and cooperate with the first covering part 324 and the second mounting part 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.

[0088] In a further solution of this embodiment, a limiting boss 323 is locally protruded on the lower surface of one end of the sliding part 321 close to the central axis of the flange 700, and the limiting boss 323 is arranged opposite to one end of the supporting part 604 close to the central axis of the flange 700.

[0089] In the above solution, the cooperation between the limiting boss 323 and the supporting part 604 limits 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 farthest distance that the centrifugal slider 300 can slide 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, avoiding scraping or even collision between the centrifugal slider 300 and the internal structure of the washing machine when the centrifugal slider 300 slides to open the drain port 101.

[0090] In a further aspect 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 mounting structures of the centrifugal slider 300 with the second mounting portion 740 and the slideway 600 are both formed on the sliding member 320, and the centrifugal slider 300 is slidably mounted on the flange 700 and the slideway 600 through the sliding member 320.

[0091] 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 of the centrifugal block body 310 in the length direction, the first covering portion 324, the second covering portion 325 (i.e., the sliding portion 321) and the first abutting portion 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 mounting portion 740 on the flange 700.

[0092] To provide a greater mass to generate a greater centrifugal force, the centrifugal block body 310 is made of a metal material. If directly mounted 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, hindering the sliding of the centrifugal slider 300 and possibly causing the drain opening 101 to be unable to open.

[0093] 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 members 320 are made of a material that can reduce the friction coefficient. For example, sliding members 320 made of plastic can be selected and fixed at both ends of the centrifugal block body 310. The friction coefficient between the sliding members 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 slide under a smaller centrifugal force, controlling the opening of the drain opening 101.

[0094] This embodiment also provides a washing machine, including an inner tub, a drain opening 101 is formed on the inner tub, and the inner tub flange assembly as described above is further included. The flange 700 is coaxially arranged with the bottom 100 of the inner tub and is fixedly installed on the bottom 100 of the inner tub.

[0095] During the washing / rinsing process, under the action of the restoring force of the elastic member 610, the centrifugal slider 300 drives the valve plug 200 to block the drain opening 101, so that the inner tub can hold water independently during the washing / rinsing process; during the draining process, the centrifugal slider 300 is acted on by the centrifugal force to overcome the restoring force of the elastic member 610, moves radially outward along the flange 700, and drives the valve plug 200 to open the drain opening 101 for draining.

[0096] In this embodiment, at least in the area of the inner barrel wall below the highest water level of the washing machine, dewatering holes are not provided. During the washing / rinsing process, the elastic member 610 keeps the centrifugal slider 300 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 the independent water storage of the inner barrel during the washing / rinsing process. An outer barrel may not be provided in the washing machine, and only a water collecting device is provided below the inner barrel. The upper edge height of the water collecting device is lower than the barrel mouth height of the inner barrel, so that the expansion of the inner barrel can be realized.

[0097] During the washing / rinsing process, the inner barrel is in a free state, and the valve plug 200 blocks the drain port 101. When draining water, the inner barrel is controlled to rotate at a certain speed, so as to generate sufficient centrifugal force to enable the centrifugal slider 300 to overcome the acting force exerted by the elastic member 610. Under the action of the centrifugal force, the centrifugal slider 300 slides radially outward along the flange 700, driving the valve plug 200 to move to open the drain port 101, realizing the drainage function.

[0098] In the washing machine of this embodiment, the inner barrel can independently store water during the washing / rinsing process. An inner barrel flange assembly with a centrifugal drainage device is installed below the inner barrel, thereby realizing the drainage function of the inner barrel. An elastic member 610 is provided in the centrifugal drainage assembly for applying a restoring force to the centrifugal slider 300, so that 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 be in direct contact with the washing machine drainage during the drainage process, so that the elastic member 610 can be prevented from rusting or being hooked by lint, avoiding the elastic failure of the elastic member 610, and thus prolonging the service life of the centrifugal drainage device and the washing machine.

[0099] Embodiment Two

[0100] As Figures 1 to 14 shown, this embodiment is a further limitation of the above Embodiment One. The centrifugal drainage device further includes a commutation transmission mechanism connecting the centrifugal slider 300 and the valve plug 200, and a mounting bracket 500 for mounting the valve plug 200. The valve plug 200 is movably mounted on the mounting bracket 500, and the centrifugal slider 300 drives the valve plug 200 to move through the commutation transmission mechanism. The commutation transmission mechanism can convert the sliding of the centrifugal slider 300 in one direction into the movement of driving the valve plug 200 in another direction.

[0101] Specifically, as Figures 6 to 12As shown, when the centrifugal slider 300 slides horizontally along the radial direction of the flange 700, the valve plug 200 moves vertically relative to the mounting bracket 500 along the direction parallel to the central axis of the flange 700 to open / block the drain port 101. The drain port 101 is provided on the bottom 100 of the inner tub. When the drain port 101 is opened, it drains directly downward, and the drainage efficiency is higher.

[0102] In the centrifugal drainage device of this embodiment, the mounting bracket 500 specifically includes:

[0103] A base 510, which is connected to the flange 700;

[0104] A connecting frame 520, which is used to connect the base 510 and the valve plug 200.

[0105] Wherein, the extension direction of the connecting frame 520 coincides with the vertical projection of the extension direction of the commutation transmission mechanism on the plane where the flange 700 is located.

[0106] In the above solution, when the inner tub flange assembly is installed on the bottom 100 of the inner tub, 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 extension directions of the connecting frame 520 and the commutation transmission mechanism on the plane where the flange 700 is located, that is, the vertical projection 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 is draining, the situation that the drain port 101 is blocked by a large area is avoided, thus ensuring a high drainage efficiency.

[0107] 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 extension 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 the hooked lint, or the blockage of the centrifugal drainage device from closing the inner tub, resulting in a water leakage phenomenon.

[0108] In this embodiment, to realize the movement of the centrifugal slider 300 and the valve plug 200 in different directions, the commutation transmission mechanism specifically includes:

[0109] A connecting rod 420, the left end of which is connected to the centrifugal slider 300 and moves with the centrifugal slider 300;

[0110] A commutation rod 410, one end of which 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 commutation rod 410 is hinged to the valve plug 200 and drives the valve plug 200 to move in another direction.

[0111] The perpendicular projection of the extending direction of the connecting frame 520 on the plane where the flange 700 is located coincides with the perpendicular projection of the extending direction of the connecting rod 420 on the plane where the flange 700 is located.

[0112] In a 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 acting force exerted by the connecting rod 420 on the reversing rod 410 does not have a component along the circumferential direction of the flange 700, thereby reducing the component of the acting force on the valve plug 200 in the horizontal direction and reducing the frictional resistance suffered by the valve plug 200 when moving relative to the mounting bracket 500.

[0113] In this embodiment, the centrifugal slider 300 slides horizontally to the left under the action of centrifugal force, and drives one end of the reversing rod 410 to move synchronously to the left 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 mounting bracket 500 along the vertical direction.

[0114] 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.

[0115] In a further solution of this embodiment, the connecting frame 520 includes:

[0116] A guiding part 521 for installing the valve plug 200;

[0117] A connecting part 522 for connecting the base 510 and the guiding part 521.

[0118] Wherein, the perpendicular projection of the extending direction of the connecting part 522 on the plane where the flange 700 is located coincides with the perpendicular projection of the extending direction of the connecting rod 420 on the plane where the flange 700 is located.

[0119] Further, the connecting rod 420 extends from the centrifugal slider 300 radially from the outside to the inside along the bottom of the barrel 100 to be hinged to the reversing rod 410, so 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. In this way, the centrifugal slider 300 can provide a greater centrifugal force.

[0120] In this embodiment, the connecting part 522 is arranged above the connecting rod 420 and extends in the same direction, thereby 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.

[0121] In the preferred solution 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.

[0122] 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 periphery of the drain port 101 bulges downward 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 periphery of the drain port 101, so that the connecting portion 522 extends from the outside 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. Setting the upper surface of the connecting portion 522 as a concave curved surface with a gradually decreasing height from both ends to the middle can effectively avoid the area that bulges downward on the bottom of the barrel 100, so that the installation bracket 500 can be installed closer to the bottom of the barrel 100, that is, the lower surface of the flange 700 and the bottom of the inner barrel 100 can be as close as possible, thus making the structure more compact.

[0123] 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.

[0124] In this embodiment, the base 510 specifically includes:

[0125] Two fixing portions 511 are arranged at intervals, respectively located on both sides of the guiding portion 521 and connected to the flange 700;

[0126] A transition portion 512 is used to connect the two fixing portions 511.

[0127] Both ends of the connecting portion 522 are respectively connected to the transition portion 512 and the guiding portion 521.

[0128] 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. Setting the fixing portion 511 as two, preferably symmetric with respect to the guiding portion 521, has a better fixing effect on the installation bracket 500 and a more solid structure.

[0129] In a further solution of this embodiment, the guiding portion 521 has a hollow slideway extending vertically. 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, preventing the transition portion 512 from blocking the drainage water flow and affecting the drainage efficiency.

[0130] 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.

[0131] Furthermore, the right side of the guiding portion 521 has an avoidance groove 5211 extending vertically with 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 passes through the avoidance groove 5211 and extends out of the guiding portion 521 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 and hinged to the support rod 202.

[0132] 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.

[0133] 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.

[0134] In this embodiment, by designing the structure of the centrifugal drainage device, the extension directions of the connecting frame 520 of the mounting bracket 500 and the reversing transmission mechanism coincide on the plane where the flange 700 is located. Specifically, the extension directions of the connecting portion 522 and the connecting rod 420 in the reversing transmission mechanism coincide on the plane where the flange 700 is located, which can reduce the occlusion of the area below the drain port 101 by the centrifugal drainage device. Thus, 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. At the same time, the connecting portion 522 and the connecting rod 420 overlap vertically, reducing the area exposed to the drainage water flow, which can reduce the snagging of lint, thereby avoiding the influence of lint snagging on the working effect of the centrifugal drainage device.

[0135] Embodiment Three

[0136] As Figures 1 to 12 shown, this embodiment provides a flange 700 for the inner barrel flange assembly in the above-mentioned Embodiment One or Two, so as to integrate the centrifugal drainage device on the flange 700 to form an integral structure that can be directly installed in the washing machine.

[0137] The flange 700 of this embodiment is as Figure 3 and Figure 4 shown. A mounting opening 710 is formed by locally recessing the edge of the flange 700 inward, and 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 at both ends of its extension direction, and a second edge 712 connecting the two first edges 711. A first mounting portion 720 protruding inward from the mounting opening 710 is provided on the second edge 712.

[0138] On the outer sides of the two first edges 711 of the mounting opening 710, second mounting portions 740 for mounting the slideway 600 are respectively formed, and second mounting holes 741 are provided on the second mounting portions 740.

[0139] This embodiment also provides an inner barrel flange assembly formed after the centrifugal drainage assembly is assembled with the flange 700. Among them, the centrifugal drainage assembly is installed in the mounting opening 710 of the flange 700, and the mounting bracket 500 therein is connected to the first mounting portion 720. The slideway 600 is connected to the second mounting portion 740, and the centrifugal slider 300 is slidably installed on the slideway 600, so that it can stably slide radially along the flange 700.

[0140] In the above solution, the flange 700 forms an installation opening 710 by locally concaving the edge, providing an installation space for the centrifugal drainage device. At the same time, the first installation part 720 protruding inward from the inner side of the installation opening 710 and the installation bracket 500 make it easier to fix the centrifugal drainage device to 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 installed in the washing machine as a whole, and the assembly process is simple.

[0141] Specifically, the first installation part 720 described in this embodiment is formed by extending a certain length from the second edge 712 to the outer periphery of the flange 700.

[0142] In detail, a first installation hole 721 is provided on the first installation part 720. Preferably, at least two first installation holes 721 are arranged along the extending direction of the first installation part 720.

[0143] In this embodiment, the first installation part 720 is specifically connected to the fixing part 511 of the installation bracket 500. During assembly, the first installation part 720 and the fixing part 511 of the installation bracket 500 can be connected and fixed by screwing through the first installation hole 721, so as to fix the installation bracket 500 on the flange 700. The centrifugal slider 300 is matched and installed in the installation 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 through the connecting rod 420 and the reversing rod 410 to open the drain port 101.

[0144] In a further solution of this embodiment, two first installation parts 720 are symmetrically arranged in the installation opening 710, and the extending directions of the two first installation parts 720 are parallel to each other.

[0145] Furthermore, both of the two first edges 711 are parallel to the extending direction of the first installation part 720.

[0146] In the centrifugal drainage device, the centrifugal slider 300 is a plate-like structure perpendicular to the central axis of the flange 700 and is matched and installed in the installation opening 710.

[0147] In the above solution, under the action of centrifugal force, the centrifugal slider 300 slides radially relative to the flange 700, and 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 port 710 matches the outer contour of the centrifugal slider 300, and 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 port 710, as well as the gap between it and the edge of the first mounting portion 720 and the mounting bracket 500, always remain 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.

[0148] In a further solution of this embodiment, a drainage avoidance port 730 is formed by a 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 drainage avoidance port 730.

[0149] Preferably, the two first mounting portions 720 are respectively located on both sides of the drainage avoidance port 730.

[0150] When the inner barrel flange assembly is applied to a washing machine, the drainage avoidance port 730 is located below the drainage port 101 on the inner barrel, so as to avoid the drainage water flow. Arranging the first mounting portion 720 in the area outside the drainage avoidance port 730 can prevent blocking the drainage water flow and affecting the drainage efficiency of the washing machine.

[0151] 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.

[0152] 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, and the fixing portion 511 is connected to the lower surface of the first mounting portion 720. The transition portion 512 arranged higher than the fixing portion 511 can fill the spaced space between the two first mounting portions 720.

[0153] 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 subjected to centrifugal force and the valve plug 200 is located at the position of blocking the drainage port 101, the mounting bracket 500 and the first mounting portion 720 of the flange 700 are arranged in the notch 311 in a matching manner.

[0154] 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 subjected to 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, rather than being mounted higher or lower than the flange 700, which has the effect of reducing the height of the inner tub flange assembly in the longitudinal direction.

[0155] For a pulsator washing machine, limited by the maximum rotation speed it can reach, in order to provide sufficient centrifugal force for the centrifugal slider 300 to open the drain port 101, it is necessary to increase the mass of the centrifugal slider 300, that is, a centrifugal slider 300 with a larger volume is required. In this embodiment, the mounting opening 710 extends along the circumferential direction of the flange 700 with a certain length. The centrifugal slider 300 is a plate-like structure and has an outer contour matching the mounting opening 710. By increasing the extension lengths of the mounting opening 710 and the centrifugal slider 300 along the circumferential direction of the flange 700, the mass of the centrifugal slider 300 can be effectively increased.

[0156] 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.

[0157] 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 in the outer peripheral region 752. The first edge 711 and the second edge 712 are connected by a fillet 713.

[0158] 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 754 is formed on the extension line where the first edge 711 extends away from the outer periphery of the flange 700.

[0159] The flange 700 of this embodiment has an edge that is partially concave inward to form a mounting opening 710, providing space for the installation of the centrifugal drainage device. At the same time, a first mounting portion 720 that protrudes inwardly towards 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 and the flange 700. The flange 700 and the centrifugal drainage device can be pre-assembled to form an inner barrel flange assembly, and then the whole is installed in the washing machine, and the assembly process is simple. By modifying 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 barrel and is beneficial to the expansion of the inner barrel.

[0160] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. 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, without departing from the scope of the technical solution of the present invention, can make some changes or modifications using the technical content prompted above into equivalent embodiments of equivalent changes. 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's solution.

Claims

1. An inner barrel flange assembly, comprising a flange plate and a centrifugal drainage device, characterized in that, An installation part is provided on the flange, and the centrifugal drainage device includes: A centrifugal slider, which is installed on the installation part and slides relative to the flange under the action of centrifugal force; A valve plug, which moves relative to the flange under the drive of the centrifugal slider; An elastic member, which has a certain extension length along the sliding direction of the centrifugal slider, applies a restoring force to the centrifugal slider in the direction opposite to the sliding direction of the centrifugal slider under the action of centrifugal force, and its outer peripheral side is completely covered by the centrifugal slider and / or the installation part; The centrifugal slider has a surface opposite to and spaced from the installation part, and the elastic member is installed between the surfaces of the centrifugal slider and the installation part that are opposite to each other; A first covering part is formed on the centrifugal slider and / or the installation part, and is located above the elastic member; And a second covering part, which is located below the elastic member; The first covering part, the second covering part, and the surface of the centrifugal slider opposite to the installation part completely cover the outer peripheral side of the elastic member.

2. The inner barrel flange assembly according to claim 1, wherein, The surface of the centrifugal slider facing the installation part bulges locally towards the installation part to form a first covering part and a second covering part; a clamping groove with an opening is formed between the first covering part and the second covering part, the elastic member is placed inside the clamping groove, and the opening of the clamping groove is blocked by the installation part.

3. The inner barrel flange assembly according to claim 2, characterized in that, The depth of the clamping groove gradually deepens from both sides close to the first covering part and the second covering part towards the middle, forming an inner concave curved surface connecting the first covering part and the second covering part.

4. The inner barrel flange assembly according to claim 2, wherein, At least a part of the installation part on the flange is located inside the clamping groove.

5. The inner barrel flange assembly according to any one of claims 1-4, characterized in that, The edge of the flange is locally concave to form an installation opening, the centrifugal slider is fitted and installed in the installation opening, and a part of the flange located outside the circumference of the installation opening forms the installation part.

6. The inner barrel flange assembly according to claim 5, characterized in that, The installation opening extends along the circumference of the flange with a certain length, and two installation parts are provided, which are respectively located outside both ends of the installation opening in the length extension direction; the opposite edges of the two installation parts are parallel to each other.

7. The inner barrel flange assembly according to claim 5, characterized in that, A slideway is fixedly installed on the installation part, a first abutting part is provided on the centrifugal slider, and the slideway has a second abutting part that is spaced from the first abutting part; both ends of the elastic member respectively abut against the opposite surfaces of the first abutting part and the second abutting part.

8. The inner barrel flange assembly according to claim 7, characterized in that, An inner concave clamping groove is provided on the surface of the centrifugal slider facing the installation part, the clamping groove extends along the length direction of the elastic member, and the elastic member is arranged in the clamping groove; One end of the clamping groove is closed to form a first abutting part, and the other end of the clamping groove is open; the second abutting part on the slideway blocks the open end of the clamping groove.

9. The inner barrel flange assembly according to claim 7, wherein, A guiding groove is opened on the slideway, a sliding part extending along the sliding direction of the centrifugal slider is provided on the centrifugal slider, and the sliding part is slidably inserted into the guiding groove.

10. The inner barrel flange assembly according to claim 9, characterized in that, The slideway has a slideway fixing part connected to the lower surface of the installation part, and the lower edge of the surface of the slideway fixing part facing the inner side of the installation opening bulges towards the inside of the installation opening to form a supporting part; The second abutting part protrudes from the surface of the slideway fixing part facing the inner side of the installation opening, and the lower surface of the second abutting part is spaced from the upper surface of the supporting part, and the guiding groove is formed between the two.

11. The inner barrel flange assembly according to claim 10, characterized in that, A lower surface of one end of the sliding part close to the central axis of the flange is partially convex to form a limiting boss, and the limiting boss is disposed opposite to one end of the supporting part close to the central axis of the flange.

12. A washing machine, including an inner tub, wherein a drain opening is provided on the inner tub, characterized in that, It further includes the inner barrel flange assembly according to any one of claims 1-11, wherein the flange is coaxially arranged with the bottom of the inner barrel and fixedly installed on the bottom of the inner barrel. During the washing or rinsing process, under the action of the restoring force of the elastic member, the centrifugal slider drives the valve plug to block the drain port, so that the inner barrel can independently hold water during the washing or rinsing process; during the draining process, the centrifugal slider is affected by the centrifugal force to overcome the restoring force of the elastic member and move radially outward along the flange, driving the valve plug to open the drain port for draining.

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