A laundry lifting device for a washing machine and a washing machine

Abstract

The present invention relates to the technical field of laundry treatment equipment, and specifically discloses a laundry lifting device for a washing machine and a washing machine. The laundry lifting device includes: a lifting rib housing with an open cavity inside; a mounting cover plate mounted at the open end of the lifting rib housing; a centrifugal drainage mechanism, including a centrifugal component and a valve plug component arranged in the lifting housing, and a lever structure connected between the centrifugal component and the valve plug component. The middle of the lever structure is rotatably connected to a rotating shaft, and the rotating shaft is supported and fixed on the mounting cover plate through a fixed support member. The laundry lifting device provided by the present invention fastens the rotating shaft to the mounting cover plate through the provided fixed support member, while achieving efficient and rapid assembly connection between the rotating shaft and the mounting cover plate, and the connection is firm and reliable, having the advantages of high reliability and high stability.

Description

Technical Field

[0001] The present invention relates to the technical field of laundry treatment equipment, and in particular, to a laundry lifting device for a washing machine and a washing machine. Background Art

[0002] As a widely used household appliance in people's daily lives, the washing machine helps people get rid of the trouble of doing laundry and brings great convenience to people. However, the washing machine also has certain disadvantages, such as long time consumption and large water consumption. With the development of society, water resources, as an important natural resource, have become increasingly important, and people's awareness of water conservation has also increased accordingly. Therefore, how to achieve the water-saving function of the washing machine has become particularly important. In addition, since the inner drum is not only used to hold washing water but also rotates to beat and clean the clothes in the drum, how to set up a dehydration structure and a drainage structure suitable for the above-mentioned washing machine has become a difficult problem to be solved urgently.

[0003] The invention patent with the application number 201810163972.0 discloses a sealing valve spool structure and a self-cleaning washing machine, including a valve plug column correspondingly installed at a drainage hole provided on the side wall of the inner drum, and a counterweight block hinged to the upper end of the valve plug column. The upper end of the counterweight block is provided with a connecting rib protruding axially upward. The end of the connecting rib is hingedly connected to the upper end of the valve plug column. The middle part of the connecting rib corresponds to and overlaps with the second extension rib of the mounting sleeve and is hingedly installed through a through pin at the overlapping part.

[0004] Although the above-mentioned self-cleaning washing machine solves the drainage problem of the drum washing machine without holes by using a sealing valve for centrifugal drainage. However, since the middle part of the connecting rib in the above application corresponds to and overlaps with the second extension rib of the mounting sleeve and is directly hingedly installed through a through pin, not only the structure assembly is complex, but also when the through pin is affected by factors such as vibration during long-term use, it is easy to loosen, resulting in poor reliability of the entire structure.

[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 a laundry lifting device for a washing machine. By setting a fixed support member to fasten the rotating shaft on the mounting cover plate, while achieving efficient and rapid assembly and fixation between the rotating shaft and the mounting cover plate, it effectively solves the problems of poor reliability and low stability of the existing centrifugal drainage mechanism.

[0007] To solve the above technical problem, the first aspect of the present application discloses a laundry lifting device for a washing machine, including:

[0008] A lifting rib housing with an open cavity inside;

[0009] An installation cover plate is installed at the open end of the lifting rib housing.

[0010] A centrifugal drainage mechanism includes a centrifugal component and a valve plug component disposed in the lifting housing, and a lever structure connected between the centrifugal component and the valve plug component.

[0011] The middle part of the lever structure is rotatably connected to a rotating shaft, and the rotating shaft is supported and fixed on the installation cover plate through a fixed support member.

[0012] Further, the rotating shaft has a fixing portion that cooperates with the fixed support member, and the fixed support member is connected and fixed to the fixing portion to support and fix the rotating shaft on the installation cover plate.

[0013] Further, the fixed support member is a screw with an extended length, the fixing portion is a threaded through hole opened on the rotating shaft, and the screw passes through the threaded through hole to support and fix the rotating shaft at a set height position above the installation cover plate.

[0014] Further, both ends of the rotating shaft are rotatably engaged with the lever structure, the threaded through hole is opened at the middle position of the rotating shaft, and the screw is supported and fixed at the middle position of the rotating shaft.

[0015] Further, a bracket is fixedly provided on the installation cover plate, and a threaded connection groove with an extended length that cooperates with the screw is provided in the bracket, and the screw is connected and fixed in the threaded connection groove.

[0016] Preferably, the bracket supports at the middle position of the lever structure, and the upper end surface of the bracket has an arc-shaped support surface that cooperates with the lever structure.

[0017] Preferably, the bracket is integrally provided with the installation cover plate.

[0018] Further, the lever structure includes a connecting portion at the middle fulcrum position. The connecting portion is provided with a rotating shaft hole that cooperates with the rotating shaft in a first direction, and an avoidance hole for avoiding the fixed support member is provided in the connecting portion in a second direction.

[0019] Preferably, the first direction is the horizontal direction, the second direction is the vertical direction, and the avoidance hole is an avoidance through hole with a long strip-shaped cross-section that is vertically and throughly opened on the connecting portion.

[0020] Further, the connecting portion is a thickened connecting portion with an enlarged outer diameter at the middle part of the lever structure. The lever structure further includes a resistance arm and a power arm connected to both sides of the thickened connecting portion. Among them: the power arm is connected to the centrifugal component, and the resistance arm is connected to the valve plug component.

[0021] Furthermore, the thickened connecting portion is a columnar structure with an enlarged outer diameter and having a first extension length L1, and the extending direction of the thickened connecting portion is perpendicular to the swinging direction of the lever structure;

[0022] The power arm and the resistance arm are plate-like structures each having a first width H1 and connected to both sides of the thickened connecting portion. Specifically: The power arm is connected to the lower part of the thickened connecting portion close to the centrifugal component, and the resistance arm is connected to the upper part of the thickened connecting portion close to the valve plug component;

[0023] Preferably, the first width H1 = the first extension length L1, and the thickness of the power arm / resistance arm gradually decreases from the thickened connecting portion towards the direction close to the centrifugal component / valve plug component.

[0024] Furthermore, the valve plug component includes a valve plug and a valve rod. The upper end of the valve rod is rotatably connected to the resistance arm through a valve plug rotating shaft, and the lower end is connected to the valve plug;

[0025] An opening groove for accommodating and avoiding the valve rod is provided at the end of the resistance arm that cooperates with the valve plug component. The opening groove includes a first side wall and a second side wall arranged opposite to each other, and the first side wall and the second side wall are respectively provided with valve plug rotating shaft holes for cooperating with the valve plug rotating shaft.

[0026] The second aspect of the present application provides a washing machine having the above-mentioned laundry lifting device.

[0027] Furthermore, the washing machine includes:

[0028] An inner tub;

[0029] An inner tub door, which is installed on the opening of the inner tub in an openable / closable manner. When the inner tub door is closed, it forms an independent washing chamber together with the inner tub, and independently holds washing water when washing clothes;

[0030] Drain holes are provided on the side wall of the inner tub. The laundry lifting device is installed on the drain holes on the inner wall of the inner tub, and the centrifugal drainage mechanism can close / open the drain holes.

[0031] After adopting the above technical solutions, the present invention has the following beneficial effects compared with the prior art.

[0032] 1. For the laundry lifting device for a washing machine provided by the present invention, by fastening the rotating shaft to the mounting cover plate through the provided fixed support member, while achieving efficient and rapid assembly and fixation between the rotating shaft and the mounting cover plate, and the connection is firm and reliable, having the advantages of high reliability and high stability, effectively solving the problems of poor reliability and low stability of the existing centrifugal drainage mechanism.

[0033] 2. In this application, the fixed support member is a screw with an extended length. A threaded through-hole matching with it is correspondingly provided on the rotating shaft. The screw passes through the threaded through-hole to support and fix the rotating shaft at a set height position above the mounting cover plate. By using a screw as the fixed support member for connecting and fixing the rotating shaft and the mounting cover plate, rapid and efficient assembly connection can be achieved, which is easy to disassemble and install. It is not only firmly and reliably connected without loosening, but also has a simple structure, low cost, and is easy to use and promote.

[0034] 3. In this application, the lever structure connected between the centrifugal component and the valve plug component adopts a thickened connecting part with a relatively thick middle part. A rotating shaft hole for inserting the rotating shaft and an avoidance hole for avoiding the fixed support member are opened on the thickened connecting part in the middle. The whole lever structure forms a combined structure similar to the combination of "6" and "9". By adopting the above structure, the lever structure is convenient for opening the rotating shaft hole and the avoidance hole, and effectively ensures the structural strength of the lever structure itself, making the lever structure not easily deformed during use, increasing its durability, and effectively avoiding the problems of low strength and poor durability of the lever structure caused by opening the rotating shaft hole and the avoidance hole.

[0035] The following further describes in detail the specific embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The accompanying drawings, as a part of the present invention, are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention, but do not constitute an improper limitation to the present invention. Obviously, the accompanying drawings in the following description are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. In the drawings:

[0037] Figure 1 is a schematic cross-sectional structure diagram of the washing machine of the present invention;

[0038] Figure 2 is a schematic structural diagram of the laundry lifting device of the present invention from an angle;

[0039] Figure 3 is a schematic cross-sectional structure diagram of the laundry lifting device of the present invention;

[0040] Figure 4 is a schematic internal structure diagram of the laundry lifting device of the present invention after the lifting rib housing and the mounting cover plate are disassembled;

[0041] Figure 5 is an enlarged partial cross-sectional view of the laundry lifting device in the embodiment of the present invention;

[0042] Figure 6 is a schematic structure diagram of the laundry lifting device in the second embodiment of the present invention after removing the lifting rib housing;

[0043] In the figure:

[0044] 1. Inner cylinder; 2. Inner cylinder door; 3. Machine door;

[0045] 4. Clothing lifting device; 41. Lifting rib housing; 411. Spray holes; 42. Installation cover plate; 421. Bracket; 4211. Threaded connection groove;

[0046] 5. Centrifugal drainage mechanism; 51. Centrifugal component;

[0047] 52. Valve plug component; 521. Valve plug; 522. Valve rod; 523. Spring; 524. Valve plug rotating shaft;

[0048] 53. Lever structure; 531. Connection part; 532. Power arm; 533. Resistance arm; 5331. Open slot; 534. Rotating shaft hole; 535. Avoidance hole;

[0049] 54. Limiting structure; 541. First limiting plate; 542. Second limiting plate; 543. Reinforcing rib;

[0050] 551. First resisting wall; 552. Second resisting wall; 553. Third resisting wall; 554. Fourth resisting wall; 561. First clamping wall; 562. Second clamping wall; 563. Third clamping wall; 564. Fourth clamping wall; 565. Connecting rib;

[0051] 6. Rotating shaft; 61. Fixed support member;

[0052] 7. Motor shaft; 8. Dynamic sealing structure; 9. Driving motor; 10. Water inlet pipe; 11. Machine shell; 12. Water inlet valve; 13. Feeding box; 14. Outer cylinder.

[0053] 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

[0054] To make the objectives, 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 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.

[0055] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It 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. Therefore, it should not be construed as a limitation to the present invention.

[0056] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" 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 mechanical connection or an electrical connection; it can be directly connected or indirectly connected 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.

[0057] As Figures 1 to 6 shown, the present invention provides a washing machine, including an outer tub 14 and an inner tub 1 coaxially arranged inside the outer tub 14. The inner tub 1 is a perforation-free inner tub without water-permeable holes on it. When washing clothes, it independently holds the washing water, greatly reducing the washing water consumption of the washing machine without filling washing / rinsing water between the inner tub 1 and the outer tub 14, avoiding the possibility of dirt adhesion between the inner tub 1 and the outer tub 14, greatly improving user health and user experience, and greatly saving water resources.

[0058] The washing machine provided by the present invention is a drum washing machine, and of course it can also be a pulsator washing machine. The washing machine has a casing 11, and an outer tub 14 is arranged inside the casing 11. An inner tub 1 is coaxially arranged inside the outer tub 14. During the washing process, the inner tub 1 rotates. Preferably, a clothes lifting device 4 is arranged inside the inner tub 1 to continuously lift and drop and beat the clothes in order to wash the clothes clean. The outer tub 14 has a central mounting hole, a bearing is installed and fixed, and a motor shaft 7 fixedly connected to the inner tub 1 passes through the bearing and is connected to a driving motor 9. The driving motor 9 drives the inner tub 1 to rotate to wash clothes.

[0059] In the present invention, as Figure 1 shown, the motor shaft 7 is a hollow shaft. The water outlet end of the water inlet pipe 10 of the washing machine is rotatably and sealingly connected to the hollow shaft through a dynamic sealing structure 8, and water is introduced into the inner tub 1 through the motor shaft 7. The inlet end of the water inlet pipe 10 is provided with a water inlet valve 12 for controlling the opening and closing of the water inlet. The first water outlet of the water inlet valve 12 is connected to the water inlet pipe 10, and the second water outlet is communicated with the detergent dispenser 13 of the washing machine for dispensing additives into the washing machine.

[0060] In the present invention, an openable / closable inner cylinder door 2 is installed on the front cylinder opening of the inner cylinder 1, so as to realize that the inner cylinder 1 is a sealed cabin structure, and an openable / closable machine door 3 is installed on the machine shell 11.

[0061] In the present invention, drain holes are provided on the peripheral wall of the inner cylinder 1, and a centrifugal drainage mechanism 5 that seals the drain holes under normal conditions is provided on the drain holes. During the dehydration program and / or the drainage program, the washing machine rotates at a high speed, and the centrifugal drainage mechanism 5 opens the drain holes under the action of centrifugal force to perform centrifugal drainage.

[0062] The present invention will be further described in detail below with reference to embodiments.

[0063] Example 1

[0064] As Figures 1 to 4 shown, this embodiment provides a clothes lifting device 4 for a washing machine. By setting a fixed support member 61 to fasten the rotating shaft 6 on the mounting cover plate 42, while realizing the efficient and rapid connection and fixation between the rotating shaft 6 and the mounting cover plate 42, it effectively solves the problems of poor reliability and low stability of the existing centrifugal drainage mechanism 5.

[0065] Specifically, the present application discloses a clothes lifting device 4 for a washing machine, including:

[0066] A lifting rib housing 41 with an open cavity inside;

[0067] A mounting cover plate 42 installed at the open end of the lifting rib housing 41;

[0068] A centrifugal drainage mechanism 5, including a centrifugal component 51 and a valve plug component 52 arranged in the lifting housing, and a lever structure 53 connected between the centrifugal component 51 and the valve plug component 52;

[0069] The valve plug component 52 includes a valve plug 521 that seals the drain 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 drives the valve plug component 52 to move in the radial direction of the inner cylinder 1 towards the center of the circle to open the drain hole.

[0070] In this embodiment, as Figure 3 and Figure 4 shown, the middle of the lever structure 53 has a rotation fulcrum, the rotation fulcrum is rotatably connected to a rotating shaft 6, and the rotating shaft 6 is supported and fixed on the mounting cover plate 42 through a fixed support member 61.

[0071] The clothes lifting device 4 for a washing machine provided in this embodiment fastens the rotating shaft 6 to the mounting cover plate 42 through the provided fixed support member 61. While achieving efficient and rapid assembly and fixation between the rotating shaft 6 and the mounting cover plate 42, the connection is firm and reliable, with the advantages of high reliability and high stability, effectively solving the problems of poor reliability and low stability of the existing centrifugal drainage mechanism 5.

[0072] As Figures 2 to 4 shown, the clothes lifting device 4 provided in this embodiment consists of two parts, one is the lifting rib housing 41, and the other is the mounting cover plate 42. The two can be connected by screws or bolts and fixing holes to form an integral part. Fixing columns or fixing holes are provided on the mounting cover plate 42 or the lifting rib housing 41. The clothes lifting device 4 is connected to the inner cylinder 1 by screws / bolts. The valve plug member 52 of the centrifugal drainage mechanism 5 provided in the lifting rib housing 41 corresponds to the position of the drainage hole of the inner cylinder 1.

[0073] As Figure 1 、 Figure 2 and Figure 4 shown, the lifting rib housing 41 is provided with spray holes 411 to realize that the lifted water sprays clothes after reaching a high place through the spray holes. An inlet is provided on the lifting rib housing 41 or the mounting cover plate 42 to realize the connection between the inside of the lifting rib housing 41 and the inner cavity of the inner cylinder 1.

[0074] Furthermore, as Figure 3 and Figure 4 shown, the rotating shaft 6 has a fixing part that cooperates with the fixed support member 61. The fixed support member 61 is connected and fixed to the fixing part to support and fix the rotating shaft 6 on the mounting cover plate 42. The fixing part can be a partial structure of the fixed support member 61, such as a connection hole opened on the rotating shaft 6 or a clamping table or clamping groove integrally provided on the rotating shaft 6 and other structures. The fixed support member 61 can be connected and fixed to the connection hole or clamping table or clamping groove to support and fix the rotating shaft 6 on the mounting cover plate 42.

[0075] Furthermore, as Figure 3 and Figure 4 shown, in this embodiment, the fixed support member 61 is a screw rod with an extended length, and the fixing part is a threaded through hole opened on the rotating shaft 6. The screw rod passes through the threaded through hole to support and fix the rotating shaft 6 at a set height position above the mounting cover plate 42. By using a screw rod as the fixed support member 61 for connecting and fixing the rotating shaft 6 and the mounting cover plate 42, rapid and efficient assembly connection is achieved, which is easy to disassemble and install. Not only is the connection firm and reliable and not easy to loosen, but also the structure is simple, the cost is low, and it is easy to use and promote.

[0076] In the above solution, the entire rotating shaft 6 can be set as a columnar structure with a relatively thick diameter to facilitate the opening of the threaded through hole, so that the threaded through hole can be directly opened on the rotating shaft 6. Alternatively, an extended connecting portion can be formed by extending outward from the outer wall portion of the rotating shaft 6, and the threaded through hole is opened on the extended connecting portion.

[0077] Further, in this embodiment, both ends of the rotating shaft 6 are rotatably matched with the lever structure 53. The threaded through hole is opened at the middle position of the rotating shaft 6, and the screw rod is supported and fixedly connected at the middle position of the rotating shaft 6. Preferably, the middle part of the rotating shaft 6 is thickened, and the threaded through hole is opened at the thickened middle part of the rotating shaft 6. Through the above settings, the strength of the structure of the rotating shaft 6 can be effectively guaranteed, and problems such as the reduction of the structural strength of the rotating shaft 6 caused by the opening of the threaded through hole and the easy deformation during use can be effectively avoided.

[0078] Further, as Figure 3 and Figure 4 shown, a bracket 421 is fixedly arranged on the mounting cover plate 42. A threaded connection groove 4211 with an extended length and matched with the screw rod is arranged in the bracket 421, and the screw rod is connected and fixed in the threaded connection groove 4211. The bracket 421 is a pillar structure fixedly arranged on the mounting cover plate 42. A cylindrical groove is opened at the position corresponding to the screw rod in the pillar structure, and threads are arranged on the inner wall of the cylindrical groove to form the threaded connection groove 4211. The inner diameter of the threaded connection groove 4211 matches the outer diameter of the screw rod, and the screw rod passes through the threaded through hole of the rotating shaft 6 and then extends into and is threadedly connected and fixed in the threaded connection groove 4211.

[0079] In the above solution, the screw rod is connected and fixed to the rotating shaft 6 and the mounting cover plate 42 by means of threaded connection. It not only has a simple structure, fast and efficient connection, but also makes the reliability of the entire clothing lifting device 4 higher and has higher stability.

[0080] Preferably, while the bracket 421 realizes the support and fixation of the rotating shaft 6, the bracket 421 also supports the middle position of the lever structure 53 to support the lever structure 53. In this embodiment, the upper end surface of the bracket 421 has an arc-shaped support surface matched with the lever structure 53. Through the above design, the bracket 421 provides a relatively stable and gentle support force for the lever structure 53. The bracket 421 supports below the lever structure 53 and shares part of the weight of the centrifugal component 51 and the lever structure 53, effectively avoiding that only the rotating shaft 6 provides all the support for the lever structure 53, so that the rotating shaft 6 is under too much pressure and is prone to fracture or deformation.

[0081] Preferably, the bracket 421 is integrally provided with the mounting cover plate 42. The bracket 421 is a pillar structure integrally formed by injection molding on the mounting cover plate 42 with a certain extended length, and the pillar structure has an extended width matching the width of the lever structure 53, and is supported below the fulcrum position in the middle of the lever structure 53.

[0082] Further, as Figure 3 and Figure 4 shown, the lever structure 53 includes a connecting portion 531 at the middle fulcrum position. The connecting portion 531 is provided with a rotating shaft hole 534 matching the rotating shaft 6 in a first direction, and the connecting portion 531 is provided with an avoidance hole 535 for avoiding the fixed support member 61 in a second direction.

[0083] Preferably, the first direction is the horizontal direction, the second direction is the vertical direction, and the avoidance hole 535 is an avoidance through hole with a long strip-shaped cross-section penetrating through the connecting portion 531 up and down, providing sufficient avoidance space for the screw.

[0084] In the above solution, as Figure 3 and Figure 4 shown, the screw can be effectively avoided through the provided avoidance hole 535, and the nut at the end of the screw is hidden in the avoidance hole 535, avoiding the exposure of the end of the screw outside the lever structure 53, which is likely to scratch other components or interfere with the setting of other components, and through the above design, the screw cannot be seen from the outside, improving the overall aesthetics.

[0085] When assembling the centrifugal drain valve mechanism, the connecting portion 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, and 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 and connected and fixed to the threaded connection groove 4211 of the bracket 421, so as to fasten the rotating shaft 6 on the bracket 421. The assembly connection is simple, efficient, and highly reliable.

[0086] Further, as Figure 3 and Figure 4 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 further includes a resistance arm 533 and a power arm 532 connected to both sides of the thickened connecting portion 531, where: the power arm 532 is connected to the centrifugal component 51, and the resistance arm 533 is connected to the valve plug component 52.

[0087] By expanding the outer diameter of the connecting portion 531 to form a thickened connecting portion 531, while facilitating the opening of the rotating shaft hole 534 and the avoidance hole 535, the structural strength of the lever structure 53 itself is effectively guaranteed, so that the lever structure 53 is not easily deformed during use, increasing durability, and effectively avoiding the problems of low strength and poor durability of the lever structure 53 caused by the opening of the rotating shaft hole 534 and the avoidance hole 535.

[0088] Further, the thickened connecting portion 531 is a columnar structure with an enlarged outer diameter and having a first extension length L1, and the extending direction of the thickened connecting portion 531 is perpendicular to the swinging direction of the lever structure 53.

[0089] The power arm 532 and the resistance arm 533 are plate-like structures respectively having a first width H1 connected to both sides of the thickened connecting portion 531, wherein: the power arm 532 is connected to the lower part of the thickened connecting portion 531 close to the centrifugal component 51, and the power arm 532 is slightly inclined upward from the thickened connecting portion 531 towards the centrifugal component 51 and is fixedly connected to the centrifugal component 51.

[0090] As Figure 3 and Figure 4 shown, the resistance arm 533 is connected to the upper part of the thickened connecting portion 531 close to the valve plug component 52, and the resistance arm 533 is slightly inclined downward from the thickened connecting portion 531 towards the valve plug component 52 and is hinged to the valve plug component 52, and the entire lever structure 53 forms a combined structure similar to the combination of "6" and "9" or the superposition of two whistle parts. By adopting the above structural arrangement of the lever structure 53, the centrifugal component 51 can drive the valve plug component 52 to move more easily.

[0091] Preferably, the first width H1 = the first extension length L1, the thickness of the power arm 532 gradually decreases from the thickened connecting portion 531 towards the centrifugal component 51, the thickness of the resistance arm 533 gradually decreases from the thickened connecting portion 531 towards the valve plug component 52, and the end of the power arm 532 or the resistance arm 533 connected to the thickened connecting portion 531 is relatively thick, ensuring the structural strength of the power arm 532 or the resistance arm 533. By setting the power arm 532 or the resistance arm 533 to have a gradually decreasing thickness structure, while saving material costs, the weight of the entire centrifugal drainage mechanism 5 is effectively reduced.

[0092] Further, the valve plug component 52 includes a valve plug 521 and a valve stem 522. A guide sleeve through which the valve stem 522 can move in the radial direction of the inner cylinder 1 is provided on the mounting cover plate 42. The upper end of the valve stem 522 is rotatably connected to the resistance arm 533 through a valve plug rotating shaft 524, and the lower end is connected to the valve plug 521. Specifically, the guide sleeve has a hollow guide channel, and the valve stem 522 can move up and down along the guide sleeve. The lower end of the valve stem 522 extends out of the hollow channel and is connected to the valve plug 521.

[0093] As Figure 4 shown, an opening groove 5331 for accommodating and avoiding the valve stem 522 is provided at the end of the resistance arm 533 that cooperates with the valve plug component 52. The opening groove 5331 includes a first side wall and a second side wall that are oppositely arranged, and valve plug rotating shaft 524 holes that cooperate with the valve plug rotating shaft 524 are respectively provided on the first side wall and the second side wall. When the resistance arm 533 of the lever structure 53 moves upward, it drives the valve stem 522 to move upward, thereby driving the valve plug 521 to move upward to open the drain hole on the inner cylinder 1 of the washing machine.

[0094] As Figures 1 to 4 shown, this embodiment provides a washing machine with the above-mentioned laundry lifting device 4, including: an inner cylinder 1; an inner cylinder door 2, which is installed on the mouth of the inner cylinder 1 in an openable / closable manner. When the inner cylinder door 2 is closed, it forms an independent washing chamber together with the inner cylinder 1, and the washing water is independently contained when washing clothes; a drain hole is provided on the side wall of the inner cylinder 1, and the laundry lifting device 4 is installed on the inner wall of the inner cylinder 1 at the position of the drain hole, and the centrifugal drainage mechanism 5 can close / open the drain hole.

[0095] Example 2

[0096] As Figures 1 to 6 shown, this embodiment provides a laundry lifting device 4 for a washing machine on the basis of Embodiment 1, mainly to solve the problems in Embodiment 1 that the centrifugal component 51 of the centrifugal drainage mechanism is prone to skew due to reasons such as the high-speed rotation and vibration of the washing machine, affecting normal drainage, and the long-term skew of the centrifugal component 51 resulting in deformation of the lifting rib housing 41 made of plastic material, causing poor appearance fit.

[0097] The laundry lifting device 4 in this embodiment further includes a centrifugal drainage mechanism 5. The centrifugal drainage mechanism 5 is arranged in the accommodating chamber of the lifting rib housing 41 and can be opened for drainage under the action of centrifugal force. In this embodiment, the centrifugal drainage mechanism 5 is fixedly installed on the mounting cover plate 42.

[0098] The centrifugal drainage mechanism 5 described above includes a centrifugal component 51 and a valve plug component 52. The centrifugal component 51 generates centrifugal motion on the first moving surface under the action of centrifugal force, driving the valve plug component 52 to open the drainage hole on the cylinder body of the inner cylinder 1 of the washing machine for drainage.

[0099] As Figures 4 to 6 shown, the clothes lifting device 4 provided in this embodiment further includes a limiting structure 54 fixedly arranged on the mounting cover plate 42. The limiting structure 54 restricts the offset motion of the centrifugal component 51 deviating from the first moving surface.

[0100] In this embodiment, by providing the limiting structure 54 on the mounting cover plate 42 to restrict the offset motion of the centrifugal component 51 deviating from the first moving surface, it can effectively prevent problems such as the position of the centrifugal component 51 being skewed during the high-speed rotation of the washing machine, affecting the normal drainage of the centrifugal drainage mechanism 5.

[0101] Furthermore, the centrifugal component 51 includes a counterweight that makes centrifugal motion along the first moving surface under the action of centrifugal force. Due to reasons such as the high-speed rotation and vibration of the washing machine, the position of the counterweight in the clothes lifting device 4 is extremely prone to problems such as skewing, affecting normal drainage. And if the counterweight is skewed for a long time, it is also easy to cause the lifting ribs made of plastic to deform, resulting in problems such as poor appearance fit.

[0102] In this embodiment, the limiting structure 54 includes limiting baffles arranged on the left and right sides of the counterweight. By providing the limiting baffles on both sides of the counterweight to limit the position of the counterweight, it can effectively prevent the phenomenon that the counterweight is skewed to the left and right sides under the action of external force.

[0103] Furthermore, as Figure 5 and Figure 6 shown, the limiting baffle includes a first limiting plate 541 and a second limiting plate 542 that are fixedly arranged on the mounting cover plate 42 at intervals. A limiting space for the limited installation of the counterweight is formed between the first limiting plate 541 and the second limiting plate 542.

[0104] Furthermore, the counterweight includes a first side wall and a second side wall that are oppositely arranged on its left and right sides. Among them, the first limiting plate 541 is located outside the first side wall and is parallel to the first side wall of the counterweight. The second limiting plate 542 is located outside the second side wall and is parallel to the second side wall of the counterweight. There is a certain gap distance between the first limiting plate 541 and the first side wall, and there is a certain gap distance between the second limiting plate 542 and the second side wall to avoid interfering with the normal centrifugal motion of the counterweight on the first moving surface.

[0105] 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 to limit the left - right offset 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 the offset surface perpendicular to the first moving surface.

[0106] Preferably, the first limiting plate 541 and the second limiting plate 542 are integrally injection - molded with the mounting cover plate 42. In the embodiment of the present invention, the first limiting plate 541 and the second limiting plate 542 are processed and manufactured by an integrally injection - molded method. The molding process is simple and the manufacturing cost is low.

[0107] In this embodiment, the first limiting plate 541 and the second limiting plate 542 are integrally formed on the mounting cover plate 42. Compared with being arranged in the lifting rib housing 41, the molding is easier and it is more convenient to process and manufacture.

[0108] Furthermore, the clothes lifting device 4 provided in this embodiment further includes a strengthening structure for increasing the strength of the limiting baffle.

[0109] Preferably, as Figure 5 and Figure 6 shown, the strengthening structure is a reinforcing rib 543 connected between the limiting baffle and the mounting cover plate 42. There are multiple reinforcing ribs 543, which are arranged at intervals along the length direction of the limiting baffle. The reinforcing rib 543 includes a first connecting side and a second connecting side that are perpendicularly connected. The first connecting side is fixedly connected to the limiting baffle, and the second connecting side is fixedly connected to the mounting cover plate 42.

[0110] More preferably, the reinforcing rib 543 is integrally injection - molded with the mounting cover plate 42, the first limiting plate 541, and the second limiting plate 542.

[0111] In this embodiment, by arranging the first limiting plate 541 and the second limiting plate 542 on the left and right sides of the counterweight, the left - right swaying of the counterweight can be effectively limited, preventing the damage of the centrifugal components caused by reasons such as resonance, and avoiding problems such as the deformation of the plastic - made lifting rib housing 41 and poor appearance fit caused by the long - term skew of the centrifugal component 51.

[0112] Furthermore, the clothes lifting device 4 further includes a positioning structure that restricts the offset of the position of the mounting cover plate 42.

[0113] In this embodiment, a positioning structure for restricting the offset of the mounting cover plate 42 is further provided inside the clothing lifting device 4, which plays a role of double guarantee. While avoiding the offset of the encapsulation cover plate within the lifting rib housing 41, it also effectively ensures the stability of the positions of the first limiting plate 541 and the second limiting plate 542, further preventing the skew of the position of the counterweight block.

[0114] Further, as Figure 5 shown, the positioning structure includes a first clamping wall 561 and a second clamping wall 562 fixedly arranged on both sides of the mounting cover plate 42, and the first clamping wall 561 and the second clamping wall 562 extend along the length direction of the mounting cover plate 42.

[0115] As Figure 5 and Figure 6 shown, along the length direction of the mounting cover plate 42, the mounting cover plate 42 includes a first long edge and a second long edge arranged oppositely. The first clamping wall 561 is arranged at a position on the upper side of the mounting cover plate 42 close to the first long edge, and the second clamping wall 562 is arranged at a position on the upper side of the mounting cover plate 42 close to the second long edge.

[0116] The first clamping wall 561 and the second clamping wall 562 can be strip-shaped clamping walls extending along the length direction of the mounting cover plate 42, or can also be clamping walls arranged at intervals on the mounting cover plate 42.

[0117] Further, the positioning structure further includes a first resisting wall 551 and a second resisting wall 552 correspondingly fixedly arranged on both sides of the lifting rib housing 41. The first clamping wall 561 is limited and clamped within the first resisting wall 551, and the second clamping wall 562 is limited and clamped within the second resisting wall 552.

[0118] Preferably, the first clamping wall 561 and the second clamping wall 562 are arranged at positions close to both side edges of the mounting cover plate 42, and the first resisting wall 551 and the second resisting wall 552 are constituted by the side walls on both sides of the lifting rib housing 41.

[0119] Specifically, as Figure 5 shown, the lifting rib housing 41 includes a strip-shaped top wall and side walls connected to both sides of the strip-shaped top wall. The first resisting wall 551 and the second resisting wall 552 are formed by vertically extending downward from the lower edges of the side walls on both sides of the lifting rib housing 41. The first clamping wall 561 and the second clamping wall 562 are respectively clamped and limited within the side walls on both sides of the lifting rib housing 41.

[0120] Through the clamping and limiting cooperation between the first clamping wall 561 and the first resisting wall 551, and between the second clamping wall 562 and the second resisting wall 552, the cooperation between the mounting cover plate 42 and the ribbed housing 41 is made more stable, and the stability of the positions of the first limiting plate 541 and the second limiting plate 542 can be enhanced.

[0121] Further, in another more preferred embodiment, the positioning structure further includes a third clamping wall 563 provided on the mounting cover plate 42 and spaced from the first clamping wall 561, and a fourth clamping wall 564 spaced from the second clamping wall 562; the third clamping wall 563 is located between the first clamping wall 561 and the first limiting plate 541, and the fourth clamping wall 564 is located between the second clamping wall 562 and the second limiting plate 542.

[0122] The positioning structure further includes a third resisting wall 553 and a fourth resisting wall 554 fixedly provided corresponding to the inner wall of the ribbed housing 41. The third clamping wall 563 is clamped and limited on the third resisting wall 553, and the fourth clamping wall 564 is clamped and limited on the fourth resisting wall 554.

[0123] Further, at least a part of the third clamping wall 563 is clamped and limited on the outer side or the inner side of the third resisting wall 553, and at least a part of the fourth clamping wall 564 is clamped and limited on the outer side or the inner side of the fourth resisting wall 554.

[0124] Preferably, the upper end of the third clamping wall 563 is clamped and limited on the inner side of the third resisting wall 553, and the upper end of the fourth clamping wall 564 is clamped and limited on the inner side of the fourth resisting wall 554.

[0125] As Figure 5 shown, through the clamping and limiting cooperation between the third clamping wall 563 and the third resisting wall 553, and between the fourth clamping wall 564 and the fourth resisting wall 554, the mounting cover plate 42 is more firmly clamped and limited in the ribbed housing 41, so that the position of the mounting cover plate 42 does not shift in the horizontal direction, further ensuring the stability of the positions of the first limiting plate 541 and the second limiting plate 542, and being able to better limit the offset of the counterweight.

[0126] In the above solution, the reinforcing rib 543 is integrally connected to the third clamping wall 563 and the fourth clamping wall 564.

[0127] Specifically, the reinforcing rib 543 has a plate-shaped pentagonal structure. The reinforcing rib 543 includes a bottom reinforcing edge, a first side reinforcing edge and a second side reinforcing edge that are perpendicularly connected to the bottom reinforcing edge. The first side reinforcing edge is fixedly connected to the first limiting plate 541 or the second limiting plate 542, and the second side reinforcing edge is fixedly connected to the second limiting plate 542.

[0128] As Figure 6 shown, in this embodiment, a plurality of connecting ribs 565 are connected between the first clamping wall 561 and the third clamping wall 563, and between the second clamping wall 562 and the fourth clamping wall 564. The plurality of connecting ribs 565 are arranged at intervals along the length direction of the mounting cover plate 42 between the first clamping wall 561 and the third clamping wall 563, and between the second clamping wall 562 and the fourth clamping wall 564. By providing the connecting ribs, the structural stability between the first clamping wall 561 and the third clamping wall 563, and between the second clamping wall 562 and the fourth clamping wall 564 is further enhanced, avoiding the phenomena of shaking and deformation when matching with the resisting wall of the lifting rib housing 41.

[0129] Further, the connecting rib 565 is an L-shaped connecting plate respectively connected between the first clamping wall 561 and the third clamping wall 563, and between the second clamping wall 562 and the fourth clamping wall 564. By setting the connecting rib 565 in an L shape, on the one hand, the firmness of its connection can be ensured, and on the other hand, the material cost can be reduced.

[0130] In another embodiment, a plurality of water drainage holes are provided at intervals on the mounting cover plate 42 between the first clamping wall 561 and the third clamping wall 563, and between the second clamping wall 562 and the fourth clamping wall 564, to prevent a large amount of residual water from accumulating in the groove formed by the first clamping wall 561, the third clamping wall 563 and the mounting cover plate 42 therebetween, or in the groove formed by the second clamping wall 562, the fourth clamping wall 564 and the mounting cover plate 42 therebetween, which cannot be drained, breeding bacteria and affecting the cleaning effect inside the washing machine.

[0131] Preferably, at least one water drainage hole is provided on the mounting cover plate 42 between every two connecting ribs 565 to ensure that the washing water accumulated in the space between every two connecting ribs 565 can be drained, ensuring that there is no possibility of accumulated washing water in any corner position inside the mounting cover plate 42.

[0132] It should be noted that in each embodiment of the present invention, the "upper end", "lower end", "upward", and "downward" do not indicate that the indicated device or element must have a specific orientation, but are for the sake of simplified description. In this embodiment, the direction close to the center of the inner cylinder is simplified as the "upper end" and "upward", and the direction away from the center of the inner cylinder and close to the circumferential wall of the inner cylinder is simplified as the "lower end" and "downward".

[0133] 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. A laundry lifting device for a washing machine, comprising: Lifting rib housing with an open cavity inside; Installation cover plate installed at the open end of the lifting rib housing; Centrifugal drainage mechanism, including a centrifugal component and a valve plug component arranged inside the lifting housing, and a lever structure connected between the centrifugal component and the valve plug component, characterized in that: The middle of the lever structure is rotatably connected to a rotating shaft, and the rotating shaft is supported and fixed on the installation cover plate through a fixed support; The lever structure includes a connecting part at the middle fulcrum position, the connecting part is a thickened connecting part with an enlarged outer diameter at the middle of the lever structure, and the lever structure also includes a resistance arm and a power arm connected to both sides of the thickened connecting part, where: the power arm is connected to the centrifugal component, and the resistance arm is connected to the valve plug component; The thickened connecting part is a columnar structure with an enlarged outer diameter and a first extension length L1, and the extension direction of the thickened connecting part is perpendicular to the swinging direction of the lever structure; The power arm and the resistance arm are plate-like structures with a first width H1 connected to both sides of the thickened connecting part, where: the power arm is connected to the lower part of the thickened connecting part close to the centrifugal component, and the resistance arm is connected to the upper part of the thickened connecting part close to the valve plug component.

2. The laundry lifting device for a washing machine according to claim 1, wherein: The rotating shaft has a fixing part that cooperates with the fixed support, and the fixed support is connected and fixed to the fixing part to support and fix the rotating shaft on the installation cover plate.

3. The laundry lifting device for a washing machine according to claim 2, wherein: The fixed support is a screw with an extension length, the fixing part is a threaded through hole opened on the rotating shaft, and the screw passes through the threaded through hole to support and fix the rotating shaft at a set height position above the installation cover plate.

4. The laundry lifting device for a washing machine according to claim 3, wherein: Both ends of the rotating shaft are rotatably matched with the lever structure, the threaded through hole is opened at the middle position of the rotating shaft, and the screw is supported and fixed at the middle position of the rotating shaft.

5. The laundry lifting device for a washing machine according to claim 3, wherein: A bracket is fixedly arranged on the installation cover plate, and a threaded connection groove with an extension length that cooperates with the screw is arranged inside the bracket, and the screw is connected and fixed in the threaded connection groove.

6. The laundry lifting device for a washing machine according to claim 5, wherein: The bracket supports the middle position of the lever structure, and the upper end surface of the bracket has an arc-shaped support surface that cooperates with the lever structure.

7. The laundry lifting device for a washing machine according to claim 5, wherein: The bracket is integrally provided with the installation cover plate.

8. The laundry lifting device for a washing machine according to any one of claims 1-7, wherein: The connecting part is provided with a rotating shaft hole that cooperates with the rotating shaft in a first direction, and an avoidance hole for avoiding the fixed support is opened in the connecting part in a second direction.

9. The laundry lifting device for a washing machine according to claim 8, wherein: The first direction is the horizontal direction, the second direction is the vertical direction, and the avoidance hole is an avoidance through hole with a long strip-shaped cross-section that penetrates up and down on the connecting part.

10. The laundry lifting device for a washing machine according to claim 1, wherein: The first width H1 = the first extension length L1, the thickness of the power arm gradually decreases from the thickened connecting part towards the direction close to the centrifugal component, and the thickness of the resistance arm gradually decreases from the thickened connecting part towards the direction close to the valve plug component.

11. The laundry lifting device for a washing machine according to claim 10, wherein: The valve plug component includes a valve plug and a valve rod, the upper end of the valve rod is rotatably connected to the resistance arm through a valve plug rotating shaft, and the lower end is connected to the valve plug; An opening groove for accommodating and avoiding the valve rod is formed at an end of the resistance arm that cooperates with the valve plug component. The opening groove includes a first side wall and a second side wall that are oppositely arranged, and valve plug rotation shaft holes that cooperate with the valve plug rotation shaft are respectively formed in the first side wall and the second side wall.

12. A washing machine, wherein, A clothes lifting device according to any one of the above claims 1-11.

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