Centrifugal drainage mechanism of washing machine, clothes lifting device and washing machine

Abstract

The present invention discloses a centrifugal drainage mechanism of a washing machine, a clothing lifting device, and a washing machine. The centrifugal drainage mechanism includes: a centrifugal component that moves under the action of centrifugal force; a valve plug component that seals the drainage hole of the washing machine under normal conditions; a lever structure, the middle part of which is rotatably supported and fixed, one end of which is connected and fixed to the centrifugal component, and the other end of which presses on the valve plug component and contacts and cooperates with the valve plug component; under the action of centrifugal force, the centrifugal component presses the end of the lever structure that cooperates with the valve plug component to rotate in a direction away from the valve plug component, and the valve plug component moves accordingly to open the drainage hole. The lever structure of the present application and the valve plug component are only in contact and cooperate, which effectively avoids the problem that the existing lever structure and the valve plug are hingedly connected through a shaft and a shaft hole, which causes the valve plug component to be subjected to a lateral bias force due to the lever pulling force, so that the position of the valve plug does not correspond well to the position of the drainage hole, resulting in valve plug failure and affecting the sealing effect of the inner drum.

Description

Technical Field

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

[0002] Washing machines, as one of the most widely used household appliances in daily life, have helped people get rid of the trouble of washing clothes and brought great convenience. However, washing machines also have certain disadvantages, such as long washing time and high water consumption. With the development of society, water resources as a key natural resource have become increasingly important, and people's awareness of water conservation has also increased. Therefore, how to achieve water-saving functions in washing machines has become particularly important. In addition, because the inner drum not only holds wash water but also rotates to shake and clean the clothes inside, how to provide a drainage mechanism suitable for such washing machines has become a difficult problem that needs to be solved urgently.

[0003] Patent application number 201810163972.0 discloses a sealing valve core structure and a no-clean washing machine. The sealing valve core structure comprises a valve plug mounted corresponding to a drain port provided on the sidewall of an inner drum, and a counterweight hingedly connected to the upper end of the valve plug. A sealing valve mounting structure is fixedly mounted on the sidewall of the inner drum, with a return spring sandwiched between the sealing valve mounting structure and the valve plug. The upper end of the counterweight is provided with a connecting rib extending axially upward. The upper end of the valve plug extends through the top of the mounting sleeve, and the end of the connecting rib is hingedly connected to the upper end of the valve plug.

[0004] The aforementioned no-clean washing machine proposed in the application solves the drainage problem of hole-free drum washing machines by using a sealing valve for centrifugal drainage. However, because the end of the connecting rib is hingedly connected to the upper end of the valve plug via a shaft and a shaft hole, the sealing valve is subjected to lateral force due to the pull of the lever. This causes the position of the valve core to misalign with the position of the drainage hole, resulting in valve core failure and affecting the sealing effect of the inner drum.

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

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing technology and provide a centrifugal drainage mechanism, in which the lever structure and the valve plug component are only in contact and fit, which effectively solves the problem that the lever structure and the valve plug of the existing centrifugal drainage mechanism are hingedly connected through an axis and an axis hole, which will cause the valve plug component to be subjected to lateral force due to the lever pull, so that the position of the valve plug and the position of the drainage hole cannot correspond well, resulting in failure of the valve plug and affecting the sealing effect of the inner cylinder.

[0007] In order to solve the above technical problems, the first aspect of the present application discloses a centrifugal drainage mechanism for a washing machine, comprising:

[0008] Centrifugal components, which move under the action of centrifugal force;

[0009] Valve plug component, which seals the drain hole of the washing machine under normal conditions;

[0010] A lever structure, wherein the middle portion is rotatably supported and fixed, one end of the lever structure is connected and fixed to the centrifugal component, and the other end of the lever structure presses against the valve plug component and contacts and cooperates with the valve plug component;

[0011] Under the action of centrifugal force, the centrifugal component presses the end of the lever structure that cooperates with the valve plug component to rotate in a direction away from the valve plug component, and the valve plug component moves accordingly to open the drain hole.

[0012] Furthermore, the valve plug component includes:

[0013] The valve plug is normally sealed at the drain hole of the washing machine;

[0014] A valve stem, the upper end of which contacts and fits with the end of the lever structure, is limited below the lever structure, and the lower end is connected to the valve plug;

[0015] an elastic element, applying an upward pushing or pulling force to the valve stem, and driving the valve plug to move upward to open the drain hole when the end of the lever structure that cooperates with the valve stem rotates upward;

[0016] Preferably, the elastic element comprises a compression spring sleeved outside the valve stem, and the upper end portion of the compression spring is limitatively connected to the valve stem.

[0017] Furthermore, the upper end portion of the valve stem is provided with a pressing contact portion with an enlarged outer diameter, and the end portion of the lever structure presses against the pressing contact portion.

[0018] Furthermore, the upper surface of the pressing contact portion is an arc-shaped curved surface structure;

[0019] The lower surface of the pressing contact portion is a straight wall structure, and the upper end of the compression spring is compressed and abutted against the lower surface of the pressing contact portion.

[0020] Preferably, an annular pressing plate is connected to the upper end of the compression spring, and the annular pressing plate abuts against the lower surface of the pressing contact portion.

[0021] Furthermore, the lever structure includes:

[0022] a power arm connected to the centrifugal component;

[0023] The resistance arm is pressed against the valve plug component and is in contact with the valve plug component;

[0024] A rolling element is provided on the end of the resistance arm, and the rolling element is in rolling point contact with the valve plug component.

[0025] Furthermore, the rolling element is a roller installed on the end of the resistance arm of the lever structure.

[0026] Furthermore, the resistance arm of the lever structure is provided with a notch groove for accommodating and installing the rolling element;

[0027] The rolling element is rotatably arranged in the notch groove, a connecting shaft is fixedly arranged in the notch groove, and the rolling element is rotatably connected to the connecting shaft.

[0028] A second aspect of the present application provides a clothing lifting device having the above-mentioned centrifugal drainage mechanism, comprising:

[0029] a lifting rib shell having an open cavity therein;

[0030] Install the cover plate on the open end of the lifting rib shell;

[0031] And the above-mentioned centrifugal drainage mechanism is arranged in the lifting rib shell and fixedly installed on the installation cover.

[0032] Furthermore, the mounting cover plate is provided with a through hole for the valve stem of the valve plug component to pass through;

[0033] The upper end of the valve stem contacts and cooperates with the lever structure located in the lifting rib housing, and the lower end extends out of the through hole to connect with the mounting cover plate and the valve plug;

[0034] An elastic element is provided between the mounting cover plate and the valve stem, and the elastic element is compressed and abutted between the mounting cover plate and the valve stem;

[0035] Preferably, the elastic element is a compression spring fixedly arranged on the mounting cover plate and sleeved outside the valve stem, one end of the compression spring is fixedly connected to the mounting cover plate, and the other end is compressed and abutted against the valve stem.

[0036] A third aspect of the present application provides a washing machine having the above-mentioned centrifugal drainage mechanism or the above-mentioned clothing lifting device.

[0037] Furthermore, the washing machine comprises: an inner drum, wherein a drainage hole is provided on a side wall of the inner drum;

[0038] The clothes lifting device is installed on the drainage hole on the inner wall of the inner drum, and the centrifugal drainage mechanism of the washing machine can close / open the drainage hole.

[0039] Preferably, the washing machine further comprises an inner drum door, which is openably / closably mounted on the drum mouth of the inner drum. When the inner drum door is closed, it forms an independent washing chamber together with the inner drum for independently holding washing water when washing clothes.

[0040] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0041] 1. The centrifugal drainage mechanism provided by the present application has a merely contact-fitting relationship between the lever structure and the valve plug component. In its initial state, the valve plug component is closed at the drainage hole under the pressure of the lever structure and the action of a compression spring. Under the action of centrifugal force, the centrifugal component compresses the end of the lever structure that engages the valve plug component and rotates in a direction away from the valve plug component. The valve plug component then automatically moves upward under the action of an elastic element, opening the drainage hole. This design prevents the valve plug component from being affected by the lateral force of the lever structure's pull. Under normal conditions, the valve plug and the drainage hole can always remain aligned, improving the sealing performance of the inner cylinder. This effectively avoids the problem of the lever structure and the valve plug being hingedly connected via an axis and an axis hole, which would cause the valve plug component to be affected by the lateral force of the lever pull, resulting in a misalignment between the valve plug position and the drainage hole, leading to valve plug failure and affecting the sealing performance of the inner cylinder.

[0042] 2. The centrifugal drainage mechanism provided by the present application has a pressure contact portion with an enlarged outer diameter provided at the upper end of the valve stem, and the upper surface of the pressure contact portion is a circular arc-shaped curved surface structure. In addition, a rolling element is provided at the end of the resistance arm of the lever structure, and there is rolling point contact between the rolling element and the pressure contact portion. By adopting the above design, point contact is achieved between the valve plug component and the lever structure, which reduces the contact area, greatly reduces frictional resistance, reduces wear, and effectively extends the service life of the centrifugal drainage mechanism. In addition, the use of rolling contact ensures smooth operation, reduces noise, and provides a better user experience.

[0043] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In the attached figure:

[0045] Figure 1 is a schematic cross-sectional structural diagram of a washing machine according to an embodiment of the present invention;

[0046] Figure 2 This is a schematic diagram of the structure of a clothing lifting device according to an embodiment of the present invention from an angle;

[0047] Figure 3 is a schematic cross-sectional view at one angle of a clothing lifting device according to an embodiment of the present invention;

[0048] Figure 4 is a schematic cross-sectional view from another angle of the clothing lifting device in an embodiment of the present invention;

[0049] Figure 5 It is a partial enlarged schematic diagram of the structure where the lever structure and the valve stem contact and cooperate with each other in an embodiment of the present invention;

[0050] Figure 6 This is a schematic diagram of the internal structure of the clothing lifting device in an embodiment of the present invention after the lifting rib housing and the mounting cover are disassembled;

[0051] In the picture:

[0052] 1. Inner cylinder; 2. Inner cylinder door; 3. Machine door;

[0053] 4. Clothes lifting device; 41. Lifting rib housing; 411. Spray hole; 42. Mounting cover; 421. Bracket; 4211. Threaded connection groove; 422. Annular limit groove;

[0054] 5. Centrifugal drainage mechanism; 51. Centrifugal components;

[0055] 52. Valve plug component; 521. Valve plug; 522. Valve stem; 5221. Pressing contact portion; 523. Compression spring; 5231. Annular pressing plate; 524. Connecting shaft;

[0056] 53. Lever structure; 531. Connecting portion; 532. Power arm; 533. Resistance arm; 5331. Notch groove; 534. Rotating shaft hole; 535. Avoidance hole; 536. Rolling element;

[0057] 54. Limiting structure; 541. First limiting plate; 542. Second limiting plate;

[0058] 6. Rotating shaft; 61. Fixed support member;

[0059] 7. Motor shaft; 8. Dynamic sealing structure; 9. Drive motor; 10. Water inlet pipe; 11. Casing; 12. Water inlet valve; 13. Dispensing box; 14. Outer tube.

[0060] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0061] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0062] In the description of the present invention, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0063] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0064] like Figures 1 to 6 As shown, the present invention provides a washing machine, comprising an outer drum 14 and an inner drum 1 coaxially arranged in the outer drum 14. The inner drum 1 is a non-porous inner drum, and the inner drum 1 has no water permeable holes. When washing clothes, washing water is independently held. There is no need to fill washing / rinsing water between the inner drum 1 and the outer drum 14, which greatly reduces the washing water consumption of the washing machine, avoids the possibility of dirt adhesion between the inner drum 1 and the outer drum 14, greatly improves user health and user experience, and greatly saves water resources.

[0065] The washing machine provided by the present invention is a drum washing machine, which may also be a pulsator washing machine. The washing machine comprises a housing 11, within which is an outer drum 14. An inner drum 1 is coaxially disposed within outer drum 14. During the washing process, inner drum 1 rotates. Preferably, a clothing lifting device 4 is disposed within inner drum 1 to continuously lift, drop, and shake the clothing to clean it. Outer drum 14 has a central mounting hole, into which a bearing is mounted and fixed. A motor shaft 7, which is securely connected to inner drum 1, passes through the bearing and is connected to a drive motor 9. The drive motor 9 drives inner drum 1 to rotate and wash the clothing.

[0066] In the present invention, Figure 1 As shown, the motor shaft 7 is a hollow shaft. The outlet end of the washing machine's water inlet pipe 10 is rotatably and hermetically connected to the hollow shaft via a dynamic seal structure 8, allowing water to flow into the inner drum 1 through the motor shaft 7. A water inlet valve 12 is provided at the inlet end of the water inlet pipe 10 for controlling the opening and closing of the water inlet. A first water outlet of the water inlet valve 12 is connected to the water inlet pipe 10, and a second water outlet is connected to a dispenser box 13 of the washing machine for dispensing additives into the washing machine.

[0067] In the present invention, an openable / closable inner cylinder door 2 is installed on the front cylinder opening of the inner cylinder 1, thereby realizing that the inner cylinder 1 is a sealed cabin structure, and an openable / closable machine door 3 is installed on the casing 11.

[0068] In the present invention, a drainage hole is provided on the peripheral wall of the inner drum 1, and a centrifugal drainage mechanism 5 is provided on the drainage hole for sealing the drainage hole under normal conditions. During the dehydration process and / or the drainage process, the washing machine rotates at high speed, and the centrifugal drainage mechanism 5 opens the drainage hole under the action of centrifugal force to perform centrifugal drainage.

[0069] The present invention will be further described in detail below with reference to the embodiments.

[0070] Example 1

[0071] like Figures 1 to 6 As shown, this embodiment provides a centrifugal drain valve mechanism, which is mainly intended to solve the problem that the lever structure 53 of the existing centrifugal drain mechanism 5 is hingedly connected to the valve plug 521 through an axis and an axis hole, which will cause the valve plug component 52 to be subjected to a lateral force caused by the lever pull, so that the position of the valve plug 521 cannot correspond well to the position of the drain hole, resulting in failure of the valve plug 521 and affecting the sealing effect of the inner tube.

[0072] Specifically, this embodiment provides a centrifugal drainage mechanism 5 for a washing machine, comprising:

[0073] The centrifugal component 51 moves under the action of centrifugal force;

[0074] The valve plug component 52 seals the drain hole on the inner drum 1 of the washing machine under normal conditions;

[0075] The lever structure 53 is rotatably supported and fixed in the middle, one end of which is connected and fixed to the centrifugal component 51, and the other end of which presses against the valve plug component 52 and contacts and cooperates with the valve plug component 52;

[0076] Under the action of centrifugal force, the centrifugal component 51 presses the end of the lever structure 53 that cooperates with the valve plug component 52 to rotate toward the center of the inner tube 1, and the valve plug component 52 moves accordingly to open the drainage hole.

[0077] Specifically, in this embodiment, the lever structure 53 and the valve plug component 52 are only in contact with each other. In the initial state, the valve plug component 52 is closed at the drainage hole under the pressure of the lever structure 53. Under the action of centrifugal force, the centrifugal component 51 moves along the radial direction of the inner cylinder 1 in the direction away from the center of the inner cylinder 1. The centrifugal component 51 presses the end of the lever structure 53 that cooperates with the valve plug component 52 to rotate toward the center of the inner cylinder 1, and the valve plug component 52 automatically moves toward the center of the inner cylinder 1 to open the drainage hole.

[0078] In this application, the valve plug 52 and lever structure 53 are merely in contact, unaffected by the lateral forces exerted by the pull of the lever structure 53. This ensures that the valve plug 52 remains in a position that seals against the drain hole in the inner cylinder, improving sealing performance. This effectively avoids the problem of the lever structure 53 and valve plug 521 being hingedly connected via an axis and an axis hole, which would cause the valve plug 52 to be subjected to lateral forces exerted by the pull of the lever, leading to misalignment between the position of the valve plug 521 and the drain hole, resulting in valve plug 521 failure and compromised sealing of the inner cylinder.

[0079] Furthermore, if Figures 3 to 5 As shown, the valve plug component 52 includes:

[0080] The valve plug 521 is normally sealed at the drain hole of the washing machine;

[0081] The valve stem 522 has an upper end that contacts and fits with the end of the lever structure 53 and is positioned below the lever structure 53 , and a lower end that is connected to the valve plug 521 ;

[0082] The elastic element applies an upward elastic thrust or elastic pull to the valve stem 522 , and when the end of the lever structure 53 that cooperates with the valve stem 522 rotates upward, the valve plug 521 is driven to move upward to open the drainage hole.

[0083] An upward elastic thrust or elastic pull is applied to the valve stem 522 through an elastic element, so that when the centrifugal component 51 is not affected by the centrifugal force, the valve stem 522 maintains contact with the lever structure 53, ensuring that the valve plug 521 is always sealed at the drainage hole under normal conditions; when the centrifugal component 51 is acted upon by the centrifugal force and the resistance end of the valve stem 522 is pressed upward, the valve stem 522 moves upward accordingly under the action of the elastic element, thereby causing the valve plug 521 to move upward, opening the drainage hole and achieving drainage.

[0084] Preferably, if Figures 3 to 6 As shown, the elastic element includes a compression spring 523 sleeved on the valve stem 522, with the upper end of the compression spring 523 being limitedly connected to the valve stem 522. The compression spring 523 can also adjust the axis of the valve stem 522, thereby achieving self-adjustment of the position of the valve plug 521, ensuring that the valve plug 521 is always in a position that seals the drain hole of the inner cylinder, thereby improving the sealing performance.

[0085] Of course, the elastic element is not limited to a compression spring 523, and may also be a tension spring, with the upper end of the tension spring fixed and the lower end connected to the valve stem 522, exerting an upward elastic tension on the valve stem 522. Preferably, to reduce interference between components, the elastic element in this application is a compression spring 523, which is sleeved outside the valve stem 522, with the lower end fixed and the upper end connected to the valve stem 522 in a limited manner, to avoid being arranged above the valve stem 522, which would interfere with the cooperation between the lever structure 53 and the valve stem 522.

[0086] Furthermore, the upper end of the valve stem 522 is provided with a pressing contact portion 5221 having an enlarged outer diameter, and the end of the lever structure 53 presses against the pressing contact portion 5221. The enlarged outer diameter pressing contact portion 5221 provided at the upper end of the valve stem 522 increases the area of ​​the upper end of the valve stem 522, allowing for easier pressing contact between the valve stem 522 and the lever structure 53. This avoids the problem of the upper end of the valve stem 522 having an excessively small area, which makes it difficult for the lever structure 53 to contact, and thus causes the valve plug 521 to fail.

[0087] Furthermore, if Figures 3 to 5 As shown, the valve stem 522 includes a rod-shaped valve stem body and a pressing contact portion 5221 integrally provided at the upper end of the valve stem 522. The pressing contact portion 5221 can be a flat cylindrical structure with an enlarged outer diameter and a circular cross-section, or a flat prismatic structure with a polygonal cross-section. The upper surface of the pressing contact portion 5221 can be flat or curved.

[0088] Preferably, the upper surface of the pressing contact portion 5221 in this embodiment is an arc-shaped curved surface structure. By setting the upper surface of the pressing contact portion 5221 as a curved surface structure, the lever structure 53 and the pressing contact portion 5221 are in point contact, which reduces friction resistance, reduces wear, and effectively extends the service life of the centrifugal drainage mechanism 5.

[0089] Furthermore, the lower surface of the pressing contact portion 5221 is a flat wall structure, the compression spring 523 is sleeved outside the valve stem 522 , and the upper end of the compression spring 523 is compressed and abutted against the lower surface of the pressing contact portion 5221 .

[0090] Preferably, if Figures 3 to 5 As shown, an annular pressure plate 5231 is fixedly connected to the upper end of the compression spring 523, and the annular pressure plate 5231 abuts against the lower surface of the pressure contact portion 5221. The area of ​​the annular pressure plate 5231 is much larger than the cross-sectional area of ​​the pressure contact portion 5221, so that the compression spring 523 can provide more stable support for the valve stem 522 and is not easily disengaged from the valve stem 522, thereby improving the reliability of the cooperation between the valve stem 522 and the compression spring 523.

[0091] Furthermore, if Figure 3 、 Figure 5 、 Figure 6 As shown, the lever structure 53 includes:

[0092] The power arm 532 is fixedly connected to the centrifugal component 51;

[0093] The resistance arm 533 is pressed against the valve plug component 52 and is in contact with the valve plug component 52;

[0094] The rolling element 536 is provided on the end of the resistance arm 533 , and the rolling element 536 is in rolling point contact with the valve plug component 52 .

[0095] The centrifugal drainage mechanism 5 provided herein has a pressure contact portion 5221 with an enlarged outer diameter disposed at the upper end of a valve stem 522. The upper surface of the pressure contact portion 5221 is an arc-shaped curved surface. Furthermore, a rolling element 536 is disposed at the end of a resistance arm 533 of the lever structure 53. The rolling element 536 forms rolling point contact with the pressure contact portion 5221.

[0096] By adopting the above design, the valve plug component 52 and the lever structure 53 are in point contact, which reduces the contact area, greatly reduces the friction resistance, reduces wear, and effectively extends the service life of the centrifugal drainage mechanism 5. In addition, the two use rolling contact to operate smoothly, reduce noise, and provide a better user experience.

[0097] Furthermore, if Figures 3 to 5 As shown, the rolling element 536 is a roller mounted on the end of the resistance arm 533 of the lever structure 53. Using a roller as a rolling structure to achieve rolling contact between the lever structure 53 and the valve plug component 52 is not only simple in structure and low in cost, but also highly flexible.

[0098] Preferably, the outer periphery of the roller is provided with a rubber lining or a rubber pad, which effectively reduces the wear at the matching position between the roller and the valve stem 522, improves the wear resistance of the roller, and can also play a role in buffering and shock absorption, effectively reducing noise.

[0099] Furthermore, if Figure 6 As shown, the resistance arm 533 of the lever structure 53 is provided with a notch groove 5331 for accommodating and installing the rolling element 536 ; the rolling element 536 is rotatably disposed in the notch groove 5331 .

[0100] Specifically, a connecting shaft 524 is fixedly disposed within the notched groove 5331, and the rolling element 536 is rotatably connected to the connecting shaft 524. The notched groove 5331 includes a first side wall and a second side wall, the connecting shaft 524 is fixedly connected between the first and second side walls, and the roller is rotatably mounted on the connecting shaft 524.

[0101] like Figures 1 to 6 As shown, this embodiment also provides a clothing lifting device 4 as described above, comprising:

[0102] The lifting rib housing 41 has an open cavity inside;

[0103] Install the cover plate 42, which is installed on the open end of the lifting rib housing 41;

[0104] And the centrifugal drainage mechanism 5 is arranged in the lifting rib housing 41 and fixedly mounted on the mounting cover 42 .

[0105] In the present application, the centrifugal drainage mechanism 5 is hidden in the lifting rib shell 41 to improve the overall aesthetics, fully utilize the internal space of the lifting rib shell 41, reduce the space occupied by the inner drum, and effectively increase the washing capacity of the inner drum.

[0106] Furthermore, if Figures 3 to 6 As shown, the mounting cover plate 42 is provided with a through hole for the valve stem 522 of the valve plug component 52 to pass through; the upper end of the valve stem 522 is in contact with the lever structure 53 located in the lifting rib shell 41, and the lower end extends out of the through hole to connect the mounting cover plate 42 with the valve plug 521; an elastic element is provided between the mounting cover plate 42 and the valve stem 522, and the elastic element is compressed and abutted between the mounting cover plate 42 and the valve stem 522.

[0107] Preferably, the elastic element is a compression spring 523 fixedly provided on the mounting cover plate 42 and sleeved outside the valve stem 522 . One end of the compression spring 523 is fixedly connected to the mounting cover plate 42 , and the other end is compressed and abutted against the valve stem 522 .

[0108] Better, if Figure 3 As shown, an annular limiting groove 422 is provided on the upper surface of the mounting cover 42, and the lower end portion of the compression spring 523 is limited in the annular limiting groove 422. The annular limiting groove 422 and the compression spring 523 are limitedly installed and matched to further ensure the stability of the compression spring 523 and avoid the position of the compression spring 523 from being offset.

[0109] Further preferably, an annular support plate is fixedly connected to the lower end of the compression spring 523 , and the annular support plate is fixed in the annular limiting groove 422 to provide more stable support for the compression spring 523 .

[0110] Further preferably, the compression spring 523 is also covered with a flexible sheath. While protecting the compression spring 523, the flexible sheath can also effectively block the impact of water flow and impurities on the compression spring 523, thereby avoiding the compression spring 523 from getting stuck due to rust or too many attached impurities.

[0111] like Figure 1 As shown, this embodiment also provides a washing machine having the above-mentioned centrifugal drainage mechanism 5 or the above-mentioned clothes lifting device 4.

[0112] Furthermore, the washing machine comprises: an inner drum 1, wherein a drainage hole is provided on a side wall of the inner drum 1;

[0113] The clothes lifting device 4 is installed on the inner wall of the inner drum 1 at the drainage hole, and the centrifugal drainage mechanism 5 of the washing machine can close / open the drainage hole.

[0114] Preferably, the washing machine further comprises an inner drum door 2, which is installed on the drum mouth of the inner drum 1 in an openable / closable manner. When the inner drum door 2 is closed, it forms an independent washing chamber together with the inner drum 1 to independently hold washing water when washing clothes.

[0115] Example 2

[0116] like Figures 1 to 6 As shown, this embodiment improves the centrifugal drainage mechanism 5 on the basis of the first embodiment, mainly to solve the problem that there is no restraining force between the lever structure 53 and the valve plug component 52 in the first embodiment, and the centrifugal force on the centrifugal component 51 is too large or other force majeure factors cause the lever structure 53 and the valve plug component 52 to be out of contact.

[0117] Specifically, it is achieved through the following implementation methods:

[0118] The first implementation method:

[0119] A flexible connector is connected between the resistance arm 533 of the lever structure 53 and the valve stem 522. The flexible connector has a certain extension length and can be a pull rope with a certain length. The flexible connector can effectively avoid the phenomenon of the lever structure 53 and the valve plug component 52 being out of contact due to excessive centrifugal force on the centrifugal component 51 or other force majeure factors.

[0120] In a natural state, the pull rope is in a relaxed state, so that there is a certain tolerance space between the lever structure 53 and the valve plug component 52, to ensure that the lever structure 53 does not generate lateral pulling force on the valve plug component 52, to avoid the position of the valve plug 521 not corresponding to the position of the drain hole, and to affect the sealing effect of the inner tube.

[0121] Preferably, the flexible connector can be a drawstring with a certain elasticity, and the drawstring has good contraction performance, so that the drawstring does not need to be set too long. With its own elastic force, it can offset the lateral pulling force of the lever structure 53 on the valve plug component 52.

[0122] Second implementation method:

[0123] A sliding limit rod is provided between the resistance arm 533 of the lever structure 53 and the valve stem 522 , and both ends of the sliding limit rod are respectively limited in the lever structure 53 and the valve stem 522 .

[0124] Specifically, annular limiting bosses are respectively provided on the circumferential walls at both ends of the sliding limiting rod, a limiting through hole is opened on the end of the resistance arm 533, and a limiting through hole is provided on the top of the valve stem 522 for the sliding limiting rod to pass through, and the interior of the valve stem 522 is hollow, and the inner diameter of the limiting through hole is larger than the outer diameter of the sliding limiting rod body and smaller than the outer diameter of the annular limiting boss, so that the sliding limiting rod is limitedly connected between the lever structure 53 and the valve stem 522, ensuring that when the centrifugal force applied to the centrifugal component 51 is too large or other force majeure factors occur, the lever structure 53 and the valve plug component 52 will not be separated.

[0125] The third implementation method:

[0126] A limiting cover is provided at the top of the valve stem 522. The limiting cover is a hemispherical concave structure with an open top, similar to a bowl-shaped structure, or the limiting cover can also be a trumpet-shaped structure with an upward opening, which covers the pressing contact portion 5221 and the rolling element 536 provided at the end of the lever structure 53. The limiting cover is fixedly connected to the peripheral wall of the valve stem 522 located below the pressing contact portion 5221. The limiting cover has a hemispherical concave limiting surface inside that limits the rolling element 536 in the first embodiment, thereby limiting the rolling element 536 therein and preventing the rolling element 536 from disengaging from the pressing contact portion 5221 when it is engaged with the pressing contact portion 5221 at the top of the valve stem 522. A certain gap is provided between the limiting surface and the rolling element 536 to avoid interfering with the normal movement of the lever structure 53.

[0127] In another alternative solution, the above-mentioned limiting cover can also be set on the end of the lever structure 53. The limiting cover is a hemispherical concave structure with an opening at the bottom, similar to a bowl-shaped structure, or the limiting cover can also be a trumpet-shaped structure with an opening facing downward, in which the top of the valve stem 522 and the rolling element 536 are both covered. The limiting cover is fixedly connected to the end of the resistance arm 533 of the lever structure 53. The limiting cover has a hemispherical concave limiting surface inside that cooperates with the pressing contact portion 5221 in Example 1 to limit the pressing contact portion 5221, and has a certain gap distance with the outer wall of the pressing contact portion 5221, which can effectively prevent the rolling element 536 from being disengaged when cooperating with the pressing contact portion 5221 at the top of the valve stem 522.

[0128] Preferably, the position limiting cover in the above scheme can be configured as a ball seat structure with a larger cavity, rather than a hemispherical concave structure. The position limiting cover is a ball seat structure between a non-hemispherical and a fully spherical shape, with a position limiting opening at the lower end. The position limiting cover covers both the pressing contact portion 5221 and the rolling element 536 therein. The inner diameter of the position limiting opening of the ball seat structure is larger than the outer diameter of the valve stem 522 and smaller than the outer diameter of the pressing contact portion 5221. By adopting the above design, the position limiting cover can be positioned in multiple directions, preventing the rolling element 536 from disengaging from the pressing contact portion 5221. A certain gap is provided between the inner circumferential wall of the ball seat structure and the outer circumferential wall of the pressing contact portion 5221, as well as between the position limiting opening and the outer circumferential wall of the valve stem 522. This provides a certain tolerance for the lever structure 53 to exert a certain amount of force on the valve plug component 52, thereby preventing the lever structure 53 from exerting a lateral pulling force on the valve plug component 52.

[0129] In the first and second embodiments, the valve stem 522 and the lever structure 53 are vertically limited in connection to prevent the lever structure 53 from disengaging from the pressing contact portion 5221 of the valve stem 522. In the third embodiment, the valve stem 522 and the lever structure 53 are horizontally limited to effectively prevent the rolling element 536 from being severely dislocated in the horizontal direction from the pressing contact portion 5221, thereby preventing the rolling element 536 from being disengaged from the pressing contact portion 5221.

[0130] The above three embodiments can be used individually or in any combination. By using them in combination, the lever structure 53 and the pressing contact portion 5221 of the valve stem 522 can be limited in multiple directions to ensure that the valve plug component 52 is not affected by the lateral tension of the lever structure 53 while effectively avoiding the two from being out of contact.

[0131] Example 3

[0132] like Figures 1 to 6As shown, this embodiment provides a clothes lifting device 4 for a washing machine on the basis of the first and second embodiments, and mainly introduces in detail the connection and cooperation between the middle part of the lever structure 53 and the mounting cover plate 42, mainly to solve the problem of poor reliability and low stability of the connection and cooperation between the lever structure 53 of the existing centrifugal drainage mechanism 5 and the mounting cover plate 42.

[0133] Specifically, this embodiment discloses a clothes lifting device 4 for a washing machine, comprising:

[0134] The lifting rib housing 41 has an open cavity inside;

[0135] Install the cover plate 42, which is installed on the open end of the lifting rib housing 41;

[0136] The centrifugal drainage mechanism 5 includes a centrifugal component 51 and a valve plug component 52 disposed in the lifting housing, and a lever structure 53 connected between the centrifugal component 51 and the valve plug component 52;

[0137] The valve plug component 52 includes a valve plug 521 that is sealed at the drainage hole of the inner cylinder 1 under normal conditions. The centrifugal component 51 moves in the radial direction of the cylinder away from the center of the circle under the action of centrifugal force. Under the action of the lever structure 53, the valve plug component 52 is driven by the valve plug component 52 to move in the radial direction of the inner cylinder 1 toward the center of the circle, thereby opening the drainage hole.

[0138] In this embodiment, Figure 3 and Figure 5 、 Figure 6 As shown, the middle portion of the lever structure 53 has a rotation fulcrum, and the rotation fulcrum is rotatably connected to a rotation shaft 6 , and the rotation shaft 6 is supported and fixed on the installation cover 42 through a fixed support member 61 .

[0139] The clothes lifting device 4 for the washing machine provided in this embodiment fastens the rotating shaft 6 to the mounting cover 42 by means of a fixed support 61, thereby achieving efficient and rapid assembly and fixation between the rotating shaft 6 and the mounting cover 42, and providing a firm and reliable connection, with the advantages of high reliability and high stability, and effectively solving the problems of poor reliability and low stability of the existing centrifugal drainage mechanism 5.

[0140] like Figures 2 to 6 As shown, the clothing lifting device 4 provided in this embodiment consists of two parts: a lifting rib housing 41 and a mounting cover 42. The two parts can be connected by screws or bolts and fixing holes to form an integrated component. The mounting cover 42 or the lifting rib housing 41 is provided with fixing posts or fixing holes. The clothing lifting device 4 is connected to the inner drum 1 via screws or bolts. The valve plug component 52 of the centrifugal drainage mechanism 5, located within the lifting rib housing 41, corresponds to the position of the drainage hole in the inner drum 1.

[0141] like Figure 1 、 Figure 2 and Figure 6 As shown, the lifting rib housing 41 is provided with a spray hole 411, which enables the lifting water to be sprayed on the clothes through the spray hole 411 after being lifted up. A water inlet is provided on the lifting rib housing 41 or the mounting cover 42, so that the interior of the lifting rib housing 41 is connected to the internal chamber of the inner drum 1.

[0142] Furthermore, if Figure 3 、 Figure 5 、 Figure 6 As shown, the rotating shaft 6 has a fixing portion that cooperates with the fixing support 61. The fixing support 61 is connected and fixed to the fixing portion, supporting and fixing the rotating shaft 6 on the mounting cover 42. The fixing portion can be a partial structure of the fixing support 61, such as a connecting hole defined on the rotating shaft 6 or a fixture or slot integrally provided on the rotating shaft 6. The fixing support 61 can be connected and fixed to the connecting hole, fixture, or slot to support and fix the rotating shaft 6 on the mounting cover 42.

[0143] Furthermore, if Figure 3 and Figure 6 As shown, in this embodiment, the fixing support member 61 is a screw having an extended length, and the fixing portion is a threaded through-hole formed in the rotating shaft 6. The screw passes through the threaded through-hole to support and fix the rotating shaft 6 at a set height above the mounting cover 42. By using a screw as the fixing support member 61 to connect and fix the rotating shaft 6 and the mounting cover 42, a fast and efficient assembly connection is achieved, and disassembly and installation are easy. Not only is the connection secure and reliable, and not prone to loosening, but the structure is simple, the cost is low, and it is easy to use and promote.

[0144] In the above solution, the entire shaft 6 can be configured as a columnar structure with a relatively large diameter to facilitate the formation of the threaded through hole, so that the threaded through hole can be directly formed on the shaft 6. Alternatively, an extension connection portion 531 can be formed by extending outward from the outer wall of the shaft 6, and the threaded through hole can be formed on the extension connection portion 531.

[0145] Furthermore, in this embodiment, the ends of the rotating shaft 6 are rotatably engaged with the lever structure 53, the threaded through-hole is provided in the middle of the rotating shaft 6, and the screw support is fixedly connected to the middle of the rotating shaft 6. Preferably, the middle portion of the rotating shaft 6 is thickened, and the threaded through-hole is provided in the thickened middle portion of the rotating shaft 6. This arrangement effectively ensures the structural strength of the rotating shaft 6 and effectively avoids problems such as reduced structural strength of the rotating shaft 6 and easy deformation during use caused by the threaded through-hole.

[0146] Further, combined with Figure 3 、 Figure 5 、 Figure 6 As shown, a bracket 421 is fixedly mounted on the mounting cover 42. A threaded connection groove 4211 extending in length is provided within the bracket 421, which mates with the screw. The screw is secured within the threaded connection groove 4211. The bracket 421 is a support structure fixed to the mounting cover 42. A cylindrical groove is defined within the support structure at a position corresponding to the screw. The inner wall of the cylindrical groove is threaded to form the threaded connection groove 4211. The inner diameter of the threaded connection groove 4211 matches the outer diameter of the screw. The screw extends through the threaded through-hole of the rotating shaft 6 through the rear end and is threadedly secured within the threaded connection groove 4211.

[0147] In the above solution, the screw rod is connected and fixed to the rotating shaft 6 and the mounting cover plate 42 by threaded connection, which not only has a simple structure and fast and efficient connection, but also makes the entire clothing lifting device 4 more reliable and has higher stability.

[0148] Preferably, if Figure 3 and Figure 6 As shown, the bracket 421 not only supports and fixes the rotating shaft 6, but also supports the middle position of the lever structure 53 to support the lever structure 53. In this embodiment, the upper end face of the bracket 421 has an arc-shaped supporting surface that cooperates with the lever structure 53. Through the above design, the bracket 421 provides a relatively stable and gentle supporting force for the lever structure 53. The bracket 421 is supported below the lever structure 53 to share part of the weight of the centrifugal component 51 and the lever structure 53, effectively avoiding the rotating shaft 6 providing all the support for the lever structure 53, so that the rotating shaft 6 is under too much pressure and is prone to breakage or deformation.

[0149] Preferably, the bracket 421 is integrally arranged with the mounting cover 42. The bracket 421 is a pillar structure with a certain extended length that is arranged on the mounting cover 42 by integral injection molding, and the pillar structure has an extended width that matches the width of the lever structure 53, and is supported below the fulcrum position in the middle of the lever structure 53.

[0150] Furthermore, if Figure 3 、 Figure 5 、 Figure 6 As shown, the lever structure 53 includes a connecting portion 531 located at the middle fulcrum position, the connecting portion 531 is provided with a rotating shaft hole 534 that cooperates with the rotating shaft 6 in the first direction, and the connecting portion 531 is provided with an avoidance hole 535 in the second direction for avoiding the fixed support member 61.

[0151] Preferably, the first direction is the horizontal direction, the second direction is the vertical direction, and the avoidance hole 535 is a through hole with a long cross section that is opened on the connecting portion 531 from top to bottom, providing sufficient avoidance space for the screw.

[0152] In the above scheme, if Figure 3 and Figure 6 As shown, the avoidance hole 535 is provided to effectively avoid the screw, and the nut at the end of the screw is hidden in the avoidance hole 535 to prevent the end of the screw from being exposed to the outside of the lever structure 53, which may cause scratches with other components or interfere with the settings of other components. In addition, the screw cannot be seen from the outside due to the above design, thereby improving the overall aesthetics.

[0153] When assembling the centrifugal drain valve mechanism, the connection part 531 of the lever structure 53 can be placed above the bracket 421 to ensure that the threaded connection groove 4211 on the bracket 421 corresponds to the avoidance hole 535 on the lever structure 53. Then, the rotating shaft 6 is passed through the rotating shaft hole 534 of the lever structure 53, and the screw is passed through the threaded through hole of the rotating shaft 6 to connect and fix it with the threaded connection groove 4211 of the bracket 421, so that the rotating shaft 6 is fastened to the bracket 421. The assembly connection is simple, efficient and reliable.

[0154] Furthermore, if Figure 3 、 Figure 5 、 Figure 6 As shown, the connecting portion 531 is a thickened connecting portion 531 with an enlarged outer diameter in the middle of the lever structure 53. The lever structure 53 also includes a resistance arm 533 and a power arm 532 connected on both sides of the thickened connecting portion 531, wherein: the power arm 532 is connected to the centrifugal component 51, and the resistance arm 533 is connected to the valve plug component 52.

[0155] By enlarging the outer diameter of the connecting portion 531 to form a thickened connecting portion 531, it is convenient to provide the rotating shaft hole 534 and the avoidance hole 535, while effectively ensuring the structural strength of the lever structure 53 itself, so that the lever structure 53 is not easily deformed during use, thereby increasing durability, and effectively avoiding the problem of low strength and poor durability of the lever structure 53 due to the provision of the rotating shaft hole 534 and the avoidance hole 535.

[0156] Furthermore, the thickened connecting portion 531 is a columnar structure with an enlarged outer diameter and a first extension length L1 , and an extension direction of the thickened connecting portion 531 is perpendicular to the swing direction of the lever structure 53 .

[0157] like Figure 5As shown, the power arm 532 and the resistance arm 533 are plate-like structures connected to both sides of the thickened connection part 531 and each having a first width H1, wherein: the power arm 532 is connected to the lower part of the thickened connection part 531 on the side close to the centrifugal component 51, and the power arm 532 is slightly inclined upward from the thickened connection part 531 to the direction close to the centrifugal component 51, and is fixedly connected to the centrifugal component 51.

[0158] like Figures 3 to 6 As shown, the resistance arm 533 is connected to the upper portion of the thickened connecting portion 531 on the side closest to the valve plug 52. The resistance arm 533 is arranged at a slight downward angle from the thickened connecting portion 531 toward the valve plug 52, and engages with the valve plug 52. The entire lever structure 53 forms a structure similar to a "6" and a "9" or two whistle parts stacked together. This structural arrangement of the lever structure 53 allows the centrifugal component 51 to more easily drive the valve plug 52.

[0159] Preferably, if Figure 6 As shown, the first width H1 = the first extension length L1, the thickness of the power arm 532 gradually decreases from the thickened connection part 531 to the direction close to the centrifugal component 51, and the thickness of the resistance arm 533 gradually decreases from the thickened connection part 531 to the direction close to the valve plug component 52. The end of the power arm 532 or the resistance arm 533 connected to the thickened connection part 531 is set to be relatively thick to ensure the structural strength of the power arm 532 or the resistance arm 533. The power arm 532 or the resistance arm 533 is set to a structure with gradually decreasing thickness, which saves material costs and effectively reduces the weight of the entire centrifugal drainage mechanism 5.

[0160] Example 4

[0161] like Figures 1 to 6 As shown, this embodiment provides a clothes lifting device 4 for a washing machine on the basis of embodiments one to three, mainly to solve the problems that the centrifugal component 51 of the centrifugal drainage mechanism 5 is easily deflected due to the high-speed rotation and vibration of the washing machine, affecting normal drainage, and the centrifugal component 51 is deflected for a long time, causing the plastic lifting rib shell 41 to deform, resulting in poor appearance and other problems.

[0162] The centrifugal drainage mechanism 5 includes a centrifugal component 51 and a valve plug component 52. The centrifugal component 51 generates centrifugal motion on the first motion surface under the action of centrifugal force, driving the valve plug component 52 to open the drainage hole on the inner drum 1 of the washing machine to drain water.

[0163] like Figure 4 、 Figure 6 As shown, the clothing lifting device 4 provided in this embodiment further includes a limiting structure 54 fixedly provided on the mounting cover 42 , and the limiting structure 54 limits the centrifugal component 51 from generating an offset motion away from the first motion surface.

[0164] In this embodiment, a limiting structure 54 is provided on the mounting cover 42 to limit the centrifugal component 51 from producing an offset movement away from the first motion surface, thereby effectively preventing the centrifugal component 51 from being skewed during high-speed rotation of the washing machine, thereby affecting the normal drainage of the centrifugal drainage mechanism 5.

[0165] Furthermore, the centrifugal component 51 includes a counterweight block that performs centrifugal motion along the first motion surface under the action of centrifugal force. Due to the high-speed rotation and vibration of the washing machine, the position of the counterweight block in the clothing lifting device 4 is very likely to be skewed, affecting normal drainage. In addition, long-term deflection of the counterweight block is also likely to cause deformation of the lifting ribs made of plastic material, resulting in problems such as poor appearance.

[0166] In this embodiment, the limiting structure 54 includes limiting baffles arranged on the left and right sides of the counterweight block. By limiting the position of the counterweight block by the limiting baffles arranged on both sides of the counterweight block, the counterweight block can be effectively prevented from being deflected to the left or right by external force.

[0167] Further, combined with Figure 4 and Figure 6 The limiting baffle includes a first limiting plate 541 and a second limiting plate 542 fixedly arranged at intervals on the installation cover plate 42, and a limiting space for the limiting installation of the counterweight block is formed between the first limiting plate 541 and the second limiting plate 542.

[0168] Furthermore, if Figure 4 、 Figure 6 As shown, the counterweight includes a first sidewall and a second sidewall disposed opposite each other on its left and right sides. A first limiting plate 541 is located outside the first sidewall and parallel to the first sidewall of the counterweight. A second limiting plate 542 is located outside the second sidewall and parallel to the second sidewall of the counterweight. A certain gap is provided between the first limiting plate 541 and the first sidewall, and a certain gap is provided between the second limiting plate 542 and the second sidewall to prevent interference with the normal centrifugal motion of the counterweight on the first motion surface.

[0169] Preferably, the first moving surface is parallel to the radial direction of the washing machine drum, and the extending direction of the limiting baffle is parallel to the first moving surface, limiting the left and right deviation of the counterweight relative to the first moving surface. The first limiting plate 541 and the second limiting plate 542 limit the movement of the counterweight in an offset plane perpendicular to the first moving surface.

[0170] Preferably, the first and second limiting plates 541, 542 are integrally injection molded with the mounting cover 42. In the embodiment of the present invention, the first and second limiting plates 541, 542 are integrally injection molded with the mounting cover 42, which has a simple molding process and low manufacturing cost.

[0171] In this embodiment, the first limiting plate 541 and the second limiting plate 542 are integrally formed on the installation cover plate 42 , which is easier to form and more convenient to manufacture than being arranged in the lifting rib shell 41 .

[0172] Furthermore, the clothing lifting device 4 provided in this embodiment also includes a reinforcing structure for increasing the strength of the limiting baffle.

[0173] Preferably, the reinforcing structure is a reinforcing rib connected between the limiting baffle and the mounting cover plate 42. There are multiple reinforcing ribs, which are arranged at intervals along the length direction of the limiting baffle. The reinforcing rib includes a first connecting edge and a second connecting edge that are vertically connected. The first connecting edge is connected and fixed to the limiting baffle, and the second connecting edge is connected and fixed to the mounting cover plate 42.

[0174] More preferably, the reinforcing ribs are integrally formed with the mounting cover plate 42 , the first limiting plate 541 , and the second limiting plate 542 by injection molding.

[0175] This embodiment can effectively limit the left and right swing of the counterweight block by providing the first limit plate 541 and the second limit plate 542 on the left and right sides of the counterweight block, thereby preventing the centrifugal component from being damaged due to resonance and other reasons, and avoiding the long-term deflection of the centrifugal component 51, which may cause the plastic lifting rib shell 41 to be deformed, resulting in poor appearance and other problems.

[0176] It should be noted that in the various embodiments of the present invention, the "upper end", "lower end", "upward" and "downward" do not indicate that the device or element referred to must have a specific orientation, but are simplified descriptions for the convenience of description. In this embodiment, the direction close to the center of the inner cylinder is simplified as "upper end" and "upward", and the direction away from the center of the inner cylinder and close to the inner cylinder wall is simplified as "lower end" and "downward".

[0177] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this patent can make slight changes or modifications to equivalent embodiments using the above technical content without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A centrifugal drainage mechanism for a washing machine, characterized in that: include: Centrifugal components, which move under the action of centrifugal force; Valve plug component, which seals the drain hole of the washing machine under normal conditions; A lever structure, wherein the middle portion is rotatably supported and fixed, one end of the lever structure is connected and fixed to the centrifugal component, and the other end of the lever structure presses against the valve plug component and contacts and cooperates with the valve plug component; Under the action of centrifugal force, the centrifugal component presses the end of the lever structure that cooperates with the valve plug component to rotate in a direction away from the valve plug component, and the valve plug component moves accordingly to open the drain hole; The valve plug component includes: The valve plug is normally sealed at the drain hole of the washing machine; A valve stem, the upper end of which contacts and fits with the end of the lever structure, is limited below the lever structure, and the lower end is connected to the valve plug; The elastic element applies an upward pushing force or pulling force to the valve stem, and when the end of the lever structure that cooperates with the valve stem rotates upward, it drives the valve plug to move upward to open the drain hole.

2. The centrifugal drainage mechanism of a washing machine according to claim 1, characterized in that: The elastic element comprises a compression spring sleeved outside the valve stem, and the upper end portion of the compression spring is limitedly connected to the valve stem.

3. The centrifugal drainage mechanism of a washing machine according to claim 2, characterized in that: The upper end portion of the valve stem is provided with a pressing contact portion with an enlarged outer diameter, and the end portion of the lever structure presses against the pressing contact portion.

4. The centrifugal drainage mechanism of a washing machine according to claim 3, characterized in that: The upper surface of the pressing contact portion is an arc-shaped curved surface structure; The lower surface of the pressing contact portion is a straight wall structure, and the upper end of the compression spring is compressed and abutted against the lower surface of the pressing contact portion.

5. The centrifugal drainage mechanism of a washing machine according to claim 4, characterized in that: An annular pressing plate is connected to the upper end of the compression spring, and the annular pressing plate abuts against the lower surface of the pressing contact portion.

6. The centrifugal drainage mechanism of a washing machine according to any one of claims 1 to 5, characterized in that: The lever structure include: a power arm connected to the centrifugal component; The resistance arm is pressed against the valve plug component and is in contact with the valve plug component; A rolling element is provided on the end of the resistance arm, and the rolling element is in rolling point contact with the valve plug component.

7. The centrifugal drainage mechanism of a washing machine according to claim 6, characterized in that: The rolling element is a roller installed on the end of the resistance arm of the lever structure.

8. The centrifugal drainage mechanism of a washing machine according to claim 6, characterized in that: The resistance arm of the lever structure is provided with a notch groove for accommodating and installing the rolling element; The rolling element is rotatably arranged in the notch groove, a connecting shaft is fixedly arranged in the notch groove, and the rolling element is rotatably connected to the connecting shaft.

9. A clothing lifting device, characterized in that: include: a lifting rib shell having an open cavity therein; Install the cover plate on the open end of the lifting rib shell; And the centrifugal drainage mechanism according to any one of claims 1 to 8 above, wherein the centrifugal drainage mechanism is arranged in the lifting rib shell and fixedly mounted on the mounting cover.

10. The clothing lifting device according to claim 9, characterized in that: The mounting cover plate is provided with a through hole through which the valve stem of the valve plug component can pass; The upper end of the valve stem contacts and cooperates with the lever structure located in the lifting rib housing, and the lower end extends out of the through hole to connect with the mounting cover plate and the valve plug; An elastic element is provided between the mounting cover plate and the valve stem, and the elastic element is compressed and abutted between the mounting cover plate and the valve stem.

11. The clothing lifting device according to claim 10, characterized in that: The elastic element is a compression spring fixedly arranged on the installation cover plate and sleeved outside the valve stem. One end of the compression spring is fixedly connected to the installation cover plate, and the other end is compressed and abutted against the valve stem.

12. A washing machine, characterized in that: It has the centrifugal drainage mechanism according to any one of claims 1 to 8 or the clothing lifting device according to any one of claims 9 to 11.

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