Wave-wheel washing machine

Abstract

The present application relates to the technical field of washing devices, and discloses a pulsator washing machine, which includes an outer tub, an inner tub, and a balancing device disposed on the inner wall of the inner tub. The balancing device includes: a housing that defines a water-containing cavity with the inner wall of the inner tub, and includes a water outlet connected to the drainage channel of the pulsator washing machine; a linkage assembly disposed in the water-containing cavity and configured to open the water outlet when the inner tub deviates from its centroid. In the pulsator washing machine provided by the embodiments of the present disclosure, when the inner tub deviates from its centroid and the distance from the outer tub becomes smaller, the linkage assembly opens the water outlet to drain the water in the water-containing cavity, adjusts the weight on the heavier side, and thus adjusts the position of the centroid of the inner tub. When the centroid of the inner tub is adjusted to be balanced with the outer tub accordingly, the linkage assembly resets and the water outlet stops draining water. According to the change in the distance between the inner tub and the outer tub, the balancing device dynamically balances and adjusts the centroid of the inner tub, so that the inner tub operates stably during the dehydration process, improving the balance performance and safety of the pulsator washing machine.

Description

Technical Field

[0001] This application relates to the technical field of washing devices, for example, a pulsator washing machine. Background Art

[0002] Currently, during the dehydration process of a pulsator washing machine, clothes are prone to accumulate on one side of the inner tub, causing the centroid of the inner tub to deviate from its rotation axis, thereby damaging the washing machine components and reducing their lifespan.

[0003] In the prior art, in order to balance the centrifugal force generated by uneven distribution of clothes, a balance ring is usually provided at the top or bottom of the inner tub side wall, and a salt water balance liquid is injected into the balance ring. The hysteresis of the salt water is used to balance the load of the inner tub of the washing machine.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] Due to the limited salt water balance liquid in the balance ring, during the dehydration process of the washing machine, the distribution of clothes changes in real time and is uneven, making it difficult to ensure that the center of gravity of the inner tub is always on the central axis of the inner tub, and the balancing effect is not good. Summary of the Invention

[0006] To have a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. This summary is not a general review, nor is it intended to identify key / important constituent elements or delineate the protection scope of these embodiments, but rather serves as a preface to the following detailed description.

[0007] The embodiments of the present disclosure provide a pulsator washing machine to solve the problem of poor dynamic adjustment of the balance of the inner tub during the dehydration process of the washing machine.

[0008] In some embodiments, the pulsator washing machine includes an outer tub, an inner tub, and a balancing device provided on the inner wall of the inner tub. The balancing device includes: a housing that defines a water-containing cavity with the inner wall of the inner tub and includes a water outlet connected to the drainage channel of the pulsator washing machine; a linkage component disposed in the water-containing cavity and configured to open the water outlet when the inner tub deviates from its centroid.

[0009] The pulsator washing machine provided by the embodiments of the present disclosure can achieve the following technical effects:

[0010] Due to the uneven distribution of the clothes in the inner tub, the distance between the inner tub and the outer tub also varies. When the center of gravity of the inner tub deviates from its centroid and the distance from the outer tub becomes smaller, the linkage component opens the water outlet to drain the water in the water storage cavity, adjusting the weight on the heavier side, thereby adjusting the position of the center of gravity of the inner tub. When the center of gravity of the inner tub is adjusted to be balanced with the outer tub, the linkage component resets and the water outlet stops draining water. In this way, according to the change in the distance between the inner tub and the outer tub, the balancing device dynamically balances and adjusts the weight of the inner tub, so that the inner tub operates stably during dehydration, improving the balance performance and safety of the pulsator washing machine.

[0011] The above general description and the following description are only exemplary and explanatory and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] One or more embodiments are exemplarily illustrated by corresponding drawings. These exemplary illustrations and the drawings do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation, and among them:

[0013] Figure 1 is a schematic cross-sectional view of a pulsator washing machine provided by an embodiment of the present disclosure;

[0014] Figure 2 is a schematic structural view of a balancing device provided by an embodiment of the present disclosure;

[0015] Figure 3 is a schematic cross-sectional view of a balancing device provided by an embodiment of the present disclosure;

[0016] Figure 4 is a schematic structural view of a housing from a first perspective provided by an embodiment of the present disclosure;

[0017] Figure 5 is a schematic structural view of a housing from a second perspective provided by an embodiment of the present disclosure.

[0018] REFERENCE SIGNS:

[0019] 100, outer tub; 200, inner tub; 300, balancing device; 310, housing; 311, water outlet; 312, water inlet; 3121, water blocking member; 320, linkage component; 321, extending portion; 3211, first end; 3212, second end; 322, cover plate; 323, transmission component; 3231, first connecting rod; 3232, second connecting rod; 3233, crankshaft; 324, elastic member; 325, buffer member; 330, water storage cavity; 400, first sealing member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] To more fully understand the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for reference and illustration purposes only and are not intended to limit the embodiments of the present disclosure. In the following technical description, for the sake of explanation, numerous details are provided to give a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other instances, well-known structures and devices may be shown in a simplified manner to simplify the drawings.

[0021] In the embodiments of the present disclosure, the terms "first", "second", etc. in the specification, claims and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data may be interchanged under appropriate circumstances so as to implement the embodiments of the present disclosure described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0022] In the embodiments of the present disclosure, the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "middle", "outer", "front", "rear", etc. is based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly used to better describe the embodiments of the present disclosure and their implementations and are not intended to limit that the indicated devices, elements or components must have a specific orientation or be constructed and operated in a specific orientation. Also, in addition to being used to represent an orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0023] In addition, the terms "arranged", "connected", "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there can be internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0024] Unless otherwise specified, the term "plurality" means two or more.

[0025] It should be noted that, without conflict, the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

[0026] There are mainly two types of fully automatic washing machines commonly used at present. One is the pulsator washing machine, and the other is the drum washing machine. The pulsator washing machine has an inner tub disposed in the washing tub that can rotate around the central axis of the tub. At the bottom of the inner tub, there is a pulsator that can rotate coaxially with the inner tub. The rotation axes of the inner tub and the pulsator are both perpendicular to the ground. During the washing process, the rotation of the pulsator mainly drives the water flow to rotate. However, during the dehydration process of the clothes, the clothes are likely to accumulate on one side of the inner tub, causing the centroid of the inner tub to deviate from its rotation axis, thereby causing damage to the components of the washing machine and reducing its lifespan. In the prior art, in order to balance the centrifugal force generated by the uneven distribution of the clothes, a balance ring is usually provided at the top or bottom of the side wall of the inner tub, and a salt water balance liquid is injected into the balance ring, and the hysteresis of the salt water is used to balance the load of the inner tub of the washing machine. However, due to the limited salt water balance liquid in the balance ring, during the dehydration process of the washing machine, the distribution of the clothes changes in real time and is uneven, making it difficult to ensure that the center of gravity of the inner tub is always on the central axis of the inner tub, and the balance effect is not good. Once the inner tub and the outer tub collide, the pulsator washing machine will stop running, and the user needs to manually adjust and restart it.

[0027] Figure 1 is a schematic cross-sectional view of the pulsator washing machine provided by an embodiment of the present disclosure; Figure 2 is a schematic structural view of the balance device provided by an embodiment of the present disclosure; Figure 4 is a schematic structural view of the first perspective of the housing provided by an embodiment of the present disclosure. Combining Figure 1 、 Figure 2 and Figure 4 As shown, an embodiment of the present disclosure provides a pulsator washing machine, including an outer tub 100, an inner tub 200, and a balance device 300 disposed on the inner wall of the inner tub 200. The balance device 300 includes a housing 310 and a linkage component 320. The housing 310 and the inner wall of the inner tub 200 define a water-containing cavity 330. The housing 310 includes a water outlet 311 connected to the drainage channel of the pulsator washing machine. The linkage component 320 is disposed in the water-containing cavity 330 and is configured to open the water outlet 311 when the inner tub 200 deviates from its centroid.

[0028] The balance device is disposed on the inner wall of the inner tub 200, and the housing 310 and the inner wall of the inner tub 200 define a water-containing cavity 330. When water is injected into the inner tub 200 of the pulsator washing machine, the water-containing cavity 330 is simultaneously filled with water. Thus, during the dehydration process, according to the distribution of the clothes in the inner tub 200 and the influence of the centrifugal force on the clothes, when the center of gravity of the inner tub 200 deviates from its centroid, the balance device 300 automatically adjusts the water in the water-containing cavity 330 to be discharged. When the center of gravity of the inner tub 200 coincides with the centroid, that is, when the centroids of the inner tub 200 and the outer tub 100 are relatively balanced, the drainage stops, thereby realizing real-time adjustment of the counterweight of the inner tub 200, achieving the purpose of dynamically adjusting the balance of the pulsator washing machine, and making the inner tub 200 operate stably during the dehydration process.

[0029] Optionally, the water outlet 311 is provided at the bottom of the housing 310 and connected to the drainage channel of the pulsator washing machine. In this way, it is convenient to drain water when adjusting the center of gravity of the inner tub 200.

[0030] Optionally, the linkage component 320 is arranged in the water-containing cavity and connected to the water outlet 311. In this way, the water outlet 311 is opened or closed through the adjustment of the linkage component 320, so as to adjust the water volume in the water-containing cavity 330.

[0031] With the pulsator washing machine provided by the embodiment of the present disclosure, when the center of gravity of the inner tub 200 deviates from its centroid and the distance from the outer tub 100 becomes smaller, the linkage component 320 opens the water outlet 311, discharges the water in the water-containing cavity 330, adjusts the weight on the heavier side in the inner tub 200, and thus adjusts the position of the center of gravity of the inner tub 200. When the inner tub 200 is adjusted to be balanced with the outer tub 100, the linkage component 320 resets and the water outlet 311 stops draining water. In this way, according to the change of the distance between the inner tub 200 and the outer tub 100, the balancing device 300 can dynamically balance and adjust the center of gravity of the inner tub 200, so that the inner tub 200 operates stably during the dehydration process, improving the balance performance and safety of the pulsator washing machine.

[0032] Figure 2 It is a schematic structural view of the balancing device provided by the embodiment of the present disclosure; Figure 3 It is a schematic sectional view of the balancing device provided by the embodiment of the present disclosure; Figure 4 It is a schematic structural view of the first perspective of the housing provided by the embodiment of the present disclosure. Combining Figures 2 to 4 As shown, optionally, the linkage component 320 includes an extension part 321, a cover plate 322 and a transmission component 323. When the balancing device 300 is squeezed with the outer tub 100, the water outlet 311 is opened through the linkage component 320, thereby adjusting the center of gravity of the inner tub 200 and realizing the adjustment of the dynamic balance of the inner tub 200. Optionally, the linkage component 320 includes an extension part 321, a transmission component 323 and a cover plate 322 that are connected to each other. In this way, during the dehydration process of the pulsator washing machine, when the extension part 321 is squeezed with the outer tub 100, a force is applied to the cover plate 322 through the transmission component 323 to open the water outlet 311, adjust the center of gravity of the inner tub 200, and dynamically adjust the balance of the inner tub 200.

[0033] The protruding portion 321 includes a first end 3211 and a second end 3212 disposed opposite to the first end 3211. The first end 3211 is located between the inner tub 200 and the outer tub 100 and has a gap with the outer tub 100. The second end 3212 is located within the water-containing cavity 330. During the dehydration process of the pulsator washing machine, when the center of gravity of the inner tub 200 deviates from its centroid, the distance between the inner tub 200 and the outer tub 100 decreases. The distance between the first end 3211 located between the inner tub 200 and the outer tub 100 and the outer tub 100 decreases until they are squeezed against each other. The second end located within the water-containing cavity 330 is subjected to the force exerted by the first end, and the second end 3212 applies a force to the transmission component 323, driving the transmission component 323 to move and open the water outlet 311. In this way, the balancing device 300 autonomously adjusts the center of gravity of the inner tub 200 by draining the water in the water-containing cavity 330 until it is balanced.

[0034] The cover plate 322 is disposed at the water outlet 311 and is hinged to the housing 310. The cover plate 322 is disposed at the water outlet 311 and is used to open the water outlet 311 when adjusting the center of gravity of the inner tub 200, or to close the water outlet 311 after the center of gravity of the inner tub 200 is adjusted. Moreover, the cover plate 322 is hinged to the housing 310. In this way, the cover plate 322 rotates relative to the water outlet 311 to open or close, with a simple structure and convenient control.

[0035] The transmission component 323 connects the second end 3212 and the cover plate 322 and is configured to drive the cover plate 322 to move and open the water outlet 311 when the inner tub 200 deviates from its centroid and the protruding portion 321 is squeezed against the outer tub 100.

[0036] During the dehydration process of the pulsator washing machine, when the center of gravity of the inner tub 200 deviates from its centroid and the protruding portion 321 is squeezed against the outer tub 100, the protruding portion 321 applies a force to the transmission component 323. The transmission component 323 drives the cover plate 322 to move and open the water outlet 311, enabling the water in the water-containing cavity 330 to drain into the drainage channel of the pulsator washing machine, changing the weight distribution within the inner tub 200 of the washing machine, adjusting the center of gravity of the inner tub 200, and stopping the drainage when the center of gravity of the inner tub 200 coincides with its centroid, that is, when the centroids of the inner tub 200 and the outer tub 100 are relatively balanced. Thus, the inner tub 200 operates stably during the dehydration process, improving the balance performance and safety of the pulsator washing machine.

[0037] Optionally, the transmission component 323 is fixedly connected or integrally formed with the second end 3212 and the cover plate 322 respectively. In this way, the structure of the linkage component 320 can be made more stable, avoiding the influence of the centrifugal force of the inner tub 200 during the dehydration process of the pulsator washing machine, causing the linkage component 320 to shake or even break, resulting in faults in the pulsator washing machine.

[0038] Optionally, the shell 310 and the second end 3212 are connected by an elastic member 324, which is located at the upper part of the water holding chamber 330; when the first end 3211 and the outer barrel 100 are squeezed against each other, the elastic member 324 is compressed, and the extension 321 applies force to the transmission assembly 323.

[0039] For a vertically positioned pulsator washing machine (i.e., one in use), the centerline of the balancing device is defined as halfway up the balancing device's height. The upper portion of the balancing device is defined as the centerline, while the lower portion is defined as the centerline. Elastic member 324 is located above water chamber 330, facilitating the extension 321's application of force to transmission assembly 323.

[0040] Optionally, the elastic member 324 is fixedly connected to the housing 310 and the second end 3212. This prevents excessive centrifugal force on the inner tub 200 during the dehydration process, which could damage the connection between the elastic member 324 and the housing 310 and the second end 3212, thereby preventing the balancing device 300 from dynamically adjusting the balance of the inner tub 200 and reducing the user experience and convenience.

[0041] Optionally, the transmission assembly 323 includes a first connecting rod 3231, a second connecting rod 3232 and a crankshaft 3233. In this way, the transmission assembly 323 has a simple structure and is easy to manufacture.

[0042] The first connecting rod 3231 is fixedly connected to the second end 3212. The second connecting rod 3232 is fixedly connected to the cover plate 322. The crankshaft 3233 is fixedly connected to the first connecting rod 3231 and the second connecting rod 3232, and is rotatably connected to the housing 310. When the elastic member 324 is compressed, the second end 3212 of the extension 321 applies force to the first connecting rod 3231, and the end of the crankshaft 3233 connected to the second connecting rod 3232 is subjected to a downward force, and the other end of the crankshaft 3233 moves upward, thereby driving the second connecting rod 3232 to drive the cover plate 322 to move upward, opening the water outlet 311. Optionally, the crankshaft 3233 is a centrally symmetrical structure relative to the connection point of the housing 310. In this way, the force output by the crankshaft 3233 to the second connecting rod 3232 is more efficient and stable.

[0043] Optionally, the length of the first connecting rod 3231 is smaller than the length of the second connecting rod 3232. In this way, by utilizing the mechanical properties of the Archimedean screw, the smaller torque input of the first connecting rod 3231 will generate a larger linear thrust on the second connecting rod 3232, which can efficiently transmit power during movement.

[0044] Optionally, a buffer member 325 is provided at the first end portion 3211, with a gap between the buffer member and the outer tub 100, and is configured to reduce the impact force between the outer tub 100 and the extending portion 321. Due to the uneven distribution of clothes in the inner tub 200 and the action of the centrifugal force generated during the rotation of the inner tub, the extending portion 321 may violently collide with the outer tub 100. The buffer member 325 is provided at the first end portion 3211. In this way, it is possible to prevent the outer tub 100 from cracking or even being damaged due to the impact of the extending portion 321, improving the safety and stability of the operation of the pulsator washing machine. Optionally, the side wall of the buffer member 325 facing the outer tub 100 is elastic. In this way, it is possible to effectively reduce the intensity of the force when the extending portion 321 collides with the outer tub 100, with good safety, and avoid the outer tub 100 being damaged, deformed, cracked or even damaged. Optionally, the elasticity of the side wall of the buffer member 325 facing the outer tub 100 is within a certain range, neither making the extending portion 321 unable to receive the action of the force due to excessive elasticity, nor making the first end portion 3211 collide with the outer tub 100 due to too small elasticity, thus avoiding deformation, cracking or even damage of the outer tub.

[0045] Optionally, the side wall of the buffer member 325 facing the outer tub 100 is an arc-shaped side wall. Optionally, it protrudes towards the outer tub 100. In this way, the side wall of the buffer member 325 facing the outer tub 100 is a smooth curved surface without edges and corners, reducing the damage to the outer tub 100 in the case of the first end portion 3211 colliding with the outer tub 100. Optionally, the arc-shaped side wall fits with the inner wall of the outer tub 100. Further reducing the impact force generated when the first end portion 3211 collides with the outer tub 100. Optionally, the buffer member 325 is a roller. In this way, the buffer effect of the buffer member 325 is better, and the roller is easy to obtain, with low cost and convenient replacement.

[0046] Optionally, an even number of balancing devices 300 are provided and are evenly distributed at equal intervals along the circumferential direction of the inner tub 200. In this way, the circumferential balance counterweight of the inner tub 200 is achieved, ensuring the circumferential balance and stability of the inner tub 200. Optionally, 2, 4, 8 or 12 balancing devices 300 are provided at equal intervals and evenly along the circumferential direction of the inner tub 200.

[0047] Figure 5 It is a schematic structural view of the second perspective of the housing provided by the embodiment of the present disclosure. Combining Figure 1 、 Figure 5 As shown, optionally, a water inlet 312 is provided at the upper part of the side wall of the housing 310, and a water blocking member 3121 inclined downward towards the inside of the water containing cavity 330 is provided at the water inlet 312, and the water blocking member 3121 is configured to prevent the water in the water containing cavity 330 from being thrown out.

[0048] Optionally, a water inlet 312 is provided at the upper part of the side wall of the housing 310 and is located below the elastic member 324. In this way, when the agitator washing machine starts to fill water into the inner tub 200, water will simultaneously enter the water storage cavity 330 along the water inlet 312 until the water storage cavity 330 is filled with water. During the dehydration process of the agitator washing machine, when the center of gravity of the inner tub 200 deviates from its centroid, the water volume in the water storage cavity 330 can be adjusted by opening the drain port 311, the center of gravity of the inner tub 200 can be adjusted, so as to achieve the purpose of adjusting the stability of the inner tub 200, and improve the balance performance and safety of the agitator washing machine.

[0049] Optionally, a water baffle 3121 is provided at the water inlet 312 and is inclined downward towards the inside of the water storage cavity 330. In this way, during the dehydration process of the agitator washing machine, the water in the water storage cavity 330 can be prevented from being thrown out from the water inlet 312, affecting the balancing function of the balancing device 300.

[0050] Optionally, the water inlet 312 includes an upper side edge and a lower side edge, and the lower side edge of the water inlet has the same inclination angle as the water baffle 3121. In this way, when filling water into the water storage cavity 330, it can play a role in guiding the water flow. Optionally, the water baffle 3121 is arranged on the upper side edge and the lower side edge. In this way, the water baffle 3121 arranged on the lower side edge can not only prevent water from being thrown out of the water storage cavity 330 during the dehydration process of the agitator washing machine, but also play a role in guiding the water flow when filling water into the water storage cavity 330.

[0051] Optionally, the agitator washing machine further includes a first seal 400. The first seal 400 is arranged between the inner wall of the inner tub 200 and the housing 310 and is configured to prevent the water in the water storage cavity 330 from overflowing into the inner tub 200.

[0052] Optionally, the first seal 400 is of an integral structure.

[0053] Optionally, the first seal 400 can be made of materials such as rubber, PVC or PU. In this way, the materials are easy to obtain and the cost is low.

[0054] Optionally, the first seal 400 has elasticity. In this way, during the dehydration process of the agitator washing machine, when the center of gravity of the inner tub 200 deviates from its centroid, while the balancing device 300 and the inner tub 200 are mutually extruded, the first seal 400 is extruded, improving the sealing effect of the first seal 400.

[0055] Optionally, the agitator washing machine further includes a second seal, which is arranged along the periphery of the water outlet 311 (not shown in the figure) and is configured to prevent the water in the water storage cavity 330 from overflowing into the drainage channel of the agitator washing machine.

[0056] Optionally, the second seal is an integral structure and has the same shape as the water outlet 311.

[0057] Optionally, the second seal can be made of materials such as rubber, PVC or PU. In this way, the materials are easily available and the cost is low.

[0058] Optionally, the second seal is elastic. In this way, during the operation of the pulsator washing machine, the cover plate 322 and the housing 310 squeeze the second seal, which can improve the sealing effect of the second seal and prevent the water in the water storage cavity 330 from overflowing into the drainage channel of the pulsator washing machine without adjusting the balance of the inner tub 200.

[0059] Optionally, for the balance device 300 provided in this embodiment, when the pulsator washing machine is in the washing stage, the water in the inner tub 200 enters the water storage cavity 330. Due to the settings of the first seal 400 and the second seal 500, the water will not overflow from the water storage cavity 330. At this time, the linkage component 320 is in the initial position. Before the pulsator washing machine performs the dehydration operation, the balance device 300 can pre-adjust the center of gravity of the inner tub 200. Due to the uneven distribution of the clothes, the center of gravity of the inner tub 200 deviates from its centroid. When the distance between the inner tub 200 and the outer tub 100 becomes smaller and the protruding portion 321 squeezes the outer tub 100, the transmission component 323 drives the cover plate 322 to move upward to open the water outlet 311, so that the water in the water storage cavity 330 is discharged, adjusting the weight on the heavier side in the inner tub 200, thereby adjusting the position of the center of gravity of the inner tub 200. When the center of gravity of the inner tub 200 is adjusted to be balanced with the outer tub 100, the linkage component 320 resets and the water outlet 311 stops draining. In this way, according to the change in the distance between the inner tub 200 and the outer tub 100, the balance device 300 can dynamically balance and adjust the center of gravity of the inner tub 200 until it coincides with the centroid, so as to balance the inner tub 200.

[0060] When the pulsator washing machine enters the dehydration stage, it will first run at a low speed for a period of time. At this time, due to the centrifugal force of the rotation of the inner tub 200, the positions of the clothes will change, affecting the rotational balance of the inner tub 200. When the distance between the inner tub 200 and the outer tub 100 becomes smaller and the protruding portion 321 squeezes the outer tub 100, the water outlet 311 is opened again and drains water into the drainage channel of the pulsator washing machine until the center of gravity of the inner tub 200 coincides with its centroid. When a new balance state is reached, the balance device 300 stops adjusting the center of gravity of the inner tub 200.

[0061] Based on the above adjustment of the center of gravity of the inner tub 200, even if the pulsator washing machine starts to run at a high speed at this time, the inner tub 200 and the outer tub 100 will not collide due to the rapid operation, preventing the pulsator washing machine from stopping due to the collision of the inner and outer tubs.

[0062] In the high-speed dehydration stage, due to the increasing centrifugal force of the inner tub 200, the water in the clothes begins to be gradually thrown out, and the center of gravity of the inner tub 200 starts to change dynamically. At this time, the balance device 300 on the heavier side in the inner tub 200 starts to operate automatically according to the change of the center of gravity of the inner tub 200, that is, it starts to dynamically adjust the center of gravity of the inner tub 200 when the extending part 321 and the outer tub 100 are mutually pressed, and the adjustment starts from the heavier side in the inner tub 200 first.

[0063] Due to the uneven distribution of the clothes, the tilting direction of the inner tub 200 is uncertain. The water volumes in an even number of balance devices 300 evenly arranged at equal circumferential intervals along the inner tub 200 are different, and the generated centrifugal forces are also different. In the dehydration stage, each balance device 300 will drain water respectively according to the relative positions of the inner tub 200 and the outer tub 100 and the distance between the extending part 321 and the outer tub 100, so as to achieve the dynamic balance adjustment of the inner tub 200 and improve the balance performance and safety of the pulsator washing machine.

[0064] Optionally, the balance device 300 is detachably connected to the inner wall of the inner tub 200. In this way, it is easy to inspect, clean, and replace the balance device 300. In the case of a malfunction of the balance device 300, the balance device 300 can be removed for replacement. Or after long-term use, the balance device 300 can be disassembled from the inner wall of the inner tub 200 to clean the internal components, ensuring the cleanliness of the pulsator washing machine.

[0065] Optionally, the balance device 300 is fixedly connected to the inner wall of the inner tub 200. In this way, during the operation of the inner tub 200, the connection between the balance device 300 and the inner tub 200 will not be disconnected due to excessive centrifugal forces generated by the clothes and the inner tub 200, with a stable structure and improved stability and safety of the pulsator washing machine.

[0066] Optionally, the balance device is arranged between the inner tub and the outer tub and includes a housing and a linkage component; the housing and the outer wall of the inner tub or the inner wall of the outer tub enclose a water-containing cavity, and the water inlet is arranged on the side wall of the inner tub. In this way, when water is injected into the inner tub of the pulsator washing machine, the water-containing cavity is filled with water at the same time. During the dehydration process, according to the distribution of the clothes in the inner tub and the influence of the centrifugal force on the clothes, when the center of gravity of the inner tub deviates from its centroid, the balance device automatically adjusts the water in the water-containing cavity to be drained, and stops draining when the center of gravity of the inner tub coincides with the centroid, that is, when the centroids of the inner tub and the outer tub are relatively balanced, so as to achieve real-time adjustment of the counterweight of the inner tub, achieve the purpose of dynamic balance adjustment of the pulsator washing machine, and make the inner tub operate stably during the dehydration process. Moreover, by arranging the balance device between the inner tub and the outer tub, the balance device does not need to occupy the space of the inner tub, and can also achieve the dynamic balance adjustment of the inner tub by the balance device, and can also prevent the clothes from damaging the balance device under the action of a large centrifugal force.

[0067] The foregoing description and the drawings sufficiently illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. Embodiments represent merely possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures already described and shown in the drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A pulsator washing machine comprising an outer tub, an inner tub, and a balancing device disposed on the inner wall of the inner tub, characterized in that: The balancing device comprises: A housing, which, together with the inner wall of the inner tub, encloses a water outlet cavity and includes a water outlet connected to the drainage channel of the pulsator washing machine; a linkage assembly, disposed in the water holding cavity and configured to open the water outlet when the inner barrel deviates from its center of mass; Wherein, the linkage component includes: The extension portion includes a first end portion and a second end portion disposed opposite to the first end portion, wherein the first end portion is located between the inner tub and the outer tub and has a gap with the outer tub, and the second end portion is located in the water containing cavity; a cover plate, disposed at the water outlet and hinged to the shell; A transmission assembly connects the second end portion and the cover plate and is configured to drive the cover plate to move and open the water outlet when the inner tub deviates from its center of mass and the protruding portion and the outer tub are squeezed against each other; the balancing device changes the weight distribution in the inner tub and adjusts the center of gravity of the inner tub by draining the water in the water holding chamber into the drainage channel.

2. The pulsator washing machine according to claim 1, characterized in that: The water outlet is arranged at the bottom of the shell; when water is poured into the inner barrel, the water holding chamber is simultaneously filled with water; during the dehydration process, the amount of water in the water holding chamber is adjusted by opening the water outlet.

3. The pulsator washing machine according to claim 2, characterized in that: The housing and the second end are connected via an elastic member, and the elastic member is located at the upper portion of the water containing chamber; When the first end portion and the outer barrel are pressed against each other, the elastic member is compressed, and the protruding portion applies force to the transmission assembly.

4. The pulsator washing machine according to claim 3, characterized in that: The transmission assembly comprises: a first connecting rod fixedly connected to the second end portion; a second connecting rod, fixedly connected to the cover plate; a crankshaft, fixedly connected to the first connecting rod and the second connecting rod, and rotatably connected to the housing; When the elastic member is compressed, the protruding portion applies force to the first connecting rod, so that the crankshaft drives the second connecting rod to drive the cover plate to move.

5. The pulsator washing machine according to claim 2, characterized in that: The first end portion is provided with a buffer member, and a gap is defined between the buffer member and the outer tub, and is configured to reduce the impact force between the outer tub and the protruding portion.

6. The pulsator washing machine according to claim 5, characterized in that: The side wall of the buffer member facing the outer barrel is an arc-shaped side wall.

7. The pulsator washing machine according to any one of claims 1 to 6, characterized in that: The balancing devices are provided in an even number and are evenly distributed along the circumference of the inner barrel at equal distances.

8. The pulsator washing machine according to any one of claims 1 to 6, characterized in that: A water inlet is provided on the upper portion of the side wall of the shell, and the water inlet is provided with a water blocking member inclined downward toward the inside of the water containing cavity, and the water blocking member is configured to prevent water in the water containing cavity from being thrown out.

9. The pulsator washing machine according to claim 8, characterized in that: Also includes: The first sealing member is disposed between the inner wall of the inner tub and the shell, and is configured to prevent water in the water containing cavity from overflowing into the inner tub.

10. The pulsator washing machine according to claim 9, characterized in that: Also includes: The second sealing member is provided along the periphery of the water outlet and is configured to prevent the water in the water containing cavity from overflowing into the drainage channel of the pulsator washing machine.

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