A washing machine

CN115874412BActive Publication Date: 2026-10-27QINGDAO HAIER WASHING MASCH CO LTD +1
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Patent Information

Application Number
CN202111141021.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-09-28
Publication Date
2026-10-27
Estimated Expiration
2041-09-28

AI Technical Summary

Technical Problem

该专利的脚踏升降装置虽然能够实现升降轮的升降,但该脚踏升降装置的主动轴的两端是通过主动轴座安装在洗衣机底面的一端,在脚踩脚踏臂时,其作用力会完全作用在主动轴座上,而主动轴座又是与洗衣机的底面固定连接,因此在使用时,该主动轴座容易受到损坏,从而影响脚踏升降装置的使用寿命

Benefits of technology

[0036]本发明提供的洗衣机,驱动杠杆通过弹性件安装在洗衣机的底部,并通过设置活动支撑架的最低点低于驱动杠杆的最低点,在驱动杠杆转动时,通过弹性件和活动支撑架可以降低洗衣机底部和驱动杠杆的承受力,增强了驱动杠杆与洗衣机的连接可靠性,从而延长了驱动杠杆的使用寿命,解决了驱动杠杆与洗衣机底部刚性连接时,会减小驱动杠杆使用寿命的问题。

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Abstract

The application discloses a washing machine, which comprises a lifting wheel assembly arranged at the bottom of the washing machine, the lifting wheel assembly comprising a lifting wheel support and a lifting wheel installed on the lifting wheel support; a driving lever connected to the bottom of the washing machine through an elastic member, the first end of the driving lever being connected to the lifting wheel assembly, the distance between the lifting wheel and the bottom of the washing machine being adjusted by controlling the second end of the driving lever; and a movable support frame connected to the driving lever, the lowest point of the movable support frame being lower than the lowest point of the driving lever, the movable support frame being supported on the ground by controlling the second end of the driving lever to move downwards, so that a supporting force is provided for the rotation of the driving lever. The washing machine provided by the application can reduce the bearing force of the bottom of the washing machine and the driving lever through the elastic member and the movable support frame when the driving lever rotates, the connection reliability of the driving lever and the washing machine is enhanced, and the service life of the driving lever is prolonged.
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Description

Technical Field

[0001] This invention belongs to the field of household appliance technology, specifically, it relates to a washing machine. Background Technology

[0002] Traditional washing machines are mostly placed directly on the ground. When users need to move or transport the washing machine, it usually requires manual labor, which is labor-intensive and inconvenient. Currently, some washing machines have casters installed directly on the bottom. However, while casters can facilitate the movement of the appliance to some extent, they are not stable and can easily cause danger during operation.

[0003] For example, Chinese Patent Application No. 200820021442.4 discloses a lifting and movable device for a washing machine, including a foot-operated lifting device, a drive shaft, a drive shaft seat, and lifting wheels. The two ends of the drive shaft are mounted on the center of the washing machine's bottom surface via the drive shaft seat and can rotate freely. A baffle is provided on the drive shaft seat, and a wheel frame is fixed to the drive shaft. The lifting wheels are mounted on the wheel frame, and the foot-operated lifting device is connected to the drive shaft. The foot-operated lifting device drives the drive shaft to rotate, and the drive shaft drives the lifting wheels to rotate up and down via the wheel frame, thus raising and lowering the lifting wheels. Although this patent's foot-operated lifting device can raise and lower the lifting wheels, the two ends of the drive shaft are mounted on one end of the washing machine's bottom surface via a drive shaft seat. When the foot pedal is pressed, the force is entirely applied to the drive shaft seat, which is fixedly connected to the bottom surface of the washing machine. Therefore, the drive shaft seat is easily damaged during use, thus affecting the service life of the foot-operated lifting device.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art. The present invention provides a washing machine that is more convenient, faster and more time-saving and labor-saving to move.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0007] A washing machine, comprising:

[0008] A lifting wheel assembly is disposed at the bottom of the washing machine, the lifting wheel assembly including a lifting wheel bracket and lifting wheels mounted on the lifting wheel bracket;

[0009] A drive lever is connected to the bottom of the washing machine via an elastic element. The first end of the drive lever is connected to the lifting wheel assembly. The distance between the lifting wheel and the bottom of the washing machine is adjusted by controlling the second end of the drive lever.

[0010] A movable support frame is connected to the drive lever. The lowest point of the movable support frame is lower than the lowest point of the drive lever. By driving the second end of the drive lever to move downward, the movable support frame is supported on the ground, providing support force for the rotation of the drive lever.

[0011] In the above solution, the drive lever is installed at the bottom of the washing machine through an elastic element, and the lowest point of the movable support frame is set lower than the lowest point of the drive lever. When the drive lever rotates, the elastic element and the movable support frame can reduce the load on the bottom of the washing machine and the drive lever, thereby enhancing the connection reliability between the drive lever and the washing machine and extending the service life of the drive lever. This solves the problem that a rigid connection between the drive lever and the bottom of the washing machine would reduce the service life of the drive lever.

[0012] Furthermore, the movable support frame includes,

[0013] The first support plate and the second support plate are located on both sides of the drive lever and are connected to the first end via a shaft;

[0014] The lowest point of the first support plate and the lowest point of the second support plate are located on the same horizontal plane.

[0015] Furthermore, the movable support frame also includes,

[0016] A connecting plate is located between the first support plate and the second support plate, and is connected to the end of the first support plate and the second support plate that is closer to the washing machine.

[0017] Preferably, the connecting plate is provided with a through hole, and the elastic element passes through the through hole and is connected to the driving lever.

[0018] Furthermore, the washing machine also includes,

[0019] At least two guide members of a certain height are respectively installed at the bottom of the washing machine, located on both sides of the lifting wheel bracket; outwardly extending guide members are respectively installed on both sides of the lifting wheel bracket, and the guide members are slidably connected to the guide members.

[0020] The second end of the drive lever rotates vertically up and down, thereby driving the guide to slide up and down along the guide via the first end of the drive lever, so as to adjust the distance between the lifting wheel and the bottom of the washing machine.

[0021] Furthermore, a guide groove is provided on the side wall of the guide member facing the lifting wheel bracket;

[0022] The guide groove extends downward at an angle from the side of the guide member facing the washing machine towards the opposite side of the washing machine. The guide member is inserted into the guide groove and slides up and down along the extension direction of the guide groove.

[0023] In the above scheme, by setting the structure of the guide member to have an inclined extended guide groove, it is easier to guide the lifting wheel assembly to move up and down, thereby simplifying the lifting motion of the lifting wheel.

[0024] Furthermore, the lifting wheel is mounted on the lifting wheel bracket via a rotating shaft, with both ends of the rotating shaft passing through the lifting wheel bracket to form the guide.

[0025] Furthermore, the first end of the drive lever is provided with a slider, the slider is connected to the lifting wheel assembly, and the side of the slider near the drive lever is engaged with the inclined surface of the end face of the first end;

[0026] The second end of the drive lever controls the first end to rotate up and down in the vertical direction, so as to drive the lifting wheel assembly to reciprocate along the length direction of the drive lever through the slider, thereby driving the guide to slide up and down along the guide.

[0027] In the above solution, the second end of the drive lever controls the first end to rotate up and down in the vertical direction, so as to drive the lifting wheel assembly to move back and forth along the length direction of the drive lever through the slider. This can easily realize the guide sliding up and down along the guide, thereby adjusting the distance between the lifting wheel and the bottom of the washing machine, so that the lifting wheel is raised or lowered relative to the ground. The designed moving device is simpler and the lifting operation of the wheel is more simplified, which not only reduces production costs but also improves the user experience.

[0028] Furthermore, the first end extends downward from the side of the drive lever toward the washing machine toward the slider to form a first inclined surface, and one end of the slider extends downward from the side of the slider toward the washing machine toward the drive lever to form a second inclined surface.

[0029] The lower end of the first inclined surface slides into the second inclined surface to drive the slider to reciprocate along the length of the drive lever.

[0030] Furthermore, the upper region of the second inclined surface is provided with a locking groove that matches the shape of the lower end to lock the position of the slider.

[0031] Furthermore, the washing machine also includes,

[0032] Multiple feet are provided at the bottom of the washing machine;

[0033] The distance between the lowest point of the lifting wheel and the bottom of the washing machine is H1, and the distance between the lowest point of the base and the bottom of the washing machine is H2;

[0034] The washing machine has a first state and a second state. In the first state, the lower end of the first inclined surface is located in the lower region of the second inclined surface, satisfying H2 > H1. In the second state, the lower end of the first inclined surface is located in the locking groove, satisfying H2 < H1.

[0035] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0036] The washing machine provided by this invention has a drive lever installed at the bottom of the washing machine via an elastic element. By setting the lowest point of the movable support frame to be lower than the lowest point of the drive lever, the load on the bottom of the washing machine and the drive lever can be reduced by the elastic element and the movable support frame when the drive lever rotates. This enhances the reliability of the connection between the drive lever and the washing machine, thereby extending the service life of the drive lever and solving the problem that a rigid connection between the drive lever and the bottom of the washing machine would reduce the service life of the drive lever.

[0037] The washing machine provided by this invention can easily achieve the sliding of the guide along the guide by controlling the second end of the drive lever to rotate up and down in the vertical direction, thereby adjusting the distance between the lifting wheel and the bottom of the washing machine, so that the lifting wheel is raised or lowered relative to the ground. The design of the moving device is simpler and the lifting operation of the wheel is more simplified, which not only reduces production costs but also improves the user experience.

[0038] The washing machine provided by the present invention, by setting the structure of the guide member to have an inclined extended guide groove, can more easily guide the lifting wheel assembly to move up and down, thereby simplifying the lifting motion of the lifting wheel.

[0039] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0040] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0041] Figure 1 This is a front view of the washing machine of the present invention.

[0042] Figure 2This is a schematic diagram of the bottom structure of the washing machine of the present invention.

[0043] Figure 3 for Figure 2 AA sectional view.

[0044] Figure 4 This is a structural schematic diagram of the washing machine of the present invention from one angle.

[0045] Figure 5 This is a partial structural diagram of the bottom of the washing machine of the present invention.

[0046] Figure 6 This is a cross-sectional view of the structure of the driving lever of the present invention.

[0047] Figure 7 This is an assembly diagram of the drive lever, elastic element, and movable support frame of the present invention.

[0048] In the diagram: 1. Washing machine; 10. Lifting wheel assembly; 11. Lifting wheel bracket; 12. Lifting wheel; 13. Rotating shaft; 20. Guide component; 21. Guide groove; 22. Drive lever; 220. Second end; 221. First end; 2211. First inclined surface; 2212. Lower end; 222. Slider; 2221. Second inclined surface; 2222. Locking groove; 224. Shaft hole; 225. Limiting component; 2251. Flanged edge; 226. Shaft; 227. Elastic component; 228. Movable support frame; 2281. First support plate; 2282. Second support plate; 2283. Connecting plate; 24. Foot; 26. Bottom wall; 30. Moving wheel assembly; 31. Moving wheel bracket; 32. Moving wheel; 33. Elastic body.

[0049] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0050] 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. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0051] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0052] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0054] like Figures 1 to 4 As shown, the present invention provides a washing machine, including: a lifting wheel assembly 10 disposed at the bottom of the washing machine 1, the lifting wheel assembly 10 including a lifting wheel bracket 11 and lifting wheels 12 mounted on the lifting wheel bracket 11;

[0055] A drive lever 22 is connected to the bottom of the washing machine 1 via an elastic element 227. The first end 221 of the drive lever 22 is connected to the lifting wheel assembly 10. The distance between the lifting wheel 12 and the bottom of the washing machine is adjusted by controlling the second end 220 of the drive lever 22.

[0056] The movable support frame 228 is connected to the drive lever 22. The lowest point of the movable support frame 228 is lower than the lowest point of the drive lever 22. By driving the second end 220 of the drive lever 22 to move downward, the movable support frame 228 is supported on the ground, providing support force for the rotation of the drive lever 22.

[0057] Because the foot pedal lifting device of existing washing machines is fixedly installed at the bottom of the washing machine through a bearing seat, when the foot pedal is stepped on, the force is entirely applied to the bearing seat. Since most washing machines are injection molded, the bearing seat is easily damaged, thus affecting the service life of the foot pedal lifting device.

[0058] Therefore, this invention mounts the drive lever to the bottom of the washing machine via an elastic element, and sets the lowest point of the movable support frame lower than the lowest point of the drive lever, meaning the distance between the lowest point of the movable support frame and the ground is less than the distance between the lowest point of the drive lever and the ground. By controlling the downward movement of the second end of the drive lever, the movable support frame is first supported on the ground, providing support for the rotation of the drive lever. Then, as the drive lever continues to rotate downward, the elastic element and the movable support frame reduce the load on the bottom of the washing machine and the drive lever, enhancing the reliability of the connection between the drive lever and the washing machine, thereby extending the service life of the drive lever and solving the problem that a rigid connection between the drive lever and the bottom of the washing machine would reduce the service life of the drive lever.

[0059] It should be noted that the driving lever of the present invention includes, but is not limited to, a foot pedal lever. That is, by stepping on the second end of the lever, it can be rotated up and down, thereby raising or lowering the lifting wheel of the lifting wheel assembly relative to the ground. The elastic element is preferably a spring.

[0060] In some implementations, such as Figure 7 As shown, the movable support frame 228 includes a first support plate 2281 and a second support plate 2282, which are located on both sides of the drive lever 22 and connected to the first end 221 via a shaft 226.

[0061] The lowest point of the first support plate 2281 and the lowest point of the second support plate 2282 are located on the same horizontal plane.

[0062] In the above scheme, by providing two support plates at both ends of the drive lever 22, when the two support plates move down to contact the ground, the second end 220 of the drive lever 22 can continue to rotate around the axis toward the ground by relying on the support force provided by the ground, so that the lifting wheel 12 is suspended in the air through the first end 221, that is, the distance between the lifting wheel 12 and the bottom of the washing machine gradually decreases.

[0063] In some implementations, such as Figure 7 As shown, the movable support frame 228 also includes a connecting plate 2283, located between the first support plate 2281 and the second support plate 2282, and connected to the end of the first support plate 2281 and the second support plate 2282 near the washing machine.

[0064] Preferably, the connecting plate 2283 is provided with a through hole, and the elastic element 227 passes through the through hole and is connected to the driving lever 22.

[0065] In the above scheme, by providing a connecting plate 2283 between the two support plates, the overall stability of the support plates can be ensured during the up-and-down movement of the drive lever 22, and a stable supporting force can be provided for the rotation of the drive lever 22.

[0066] In some implementations, such as Figure 4 and Figure 5 As shown, the washing machine 1 also includes,

[0067] At least two guide members 20 of a certain height are respectively installed at the bottom of the washing machine, located on both sides of the lifting wheel bracket 11; outwardly extending guide members are respectively installed on both sides of the lifting wheel bracket 11, and the guide members are slidably connected to the guide members 20;

[0068] The second end 220 of the drive lever 22 rotates vertically up and down, thereby driving the guide to slide up and down along the guide 20 through the first end 221 of the drive lever 22, so as to adjust the distance between the lifting wheel 12 and the bottom of the washing machine.

[0069] By providing guide members 20 on both sides of the lifting wheel bracket 11, when the guide members on the lifting wheel bracket 11 slide up and down along the guide members 20, they can provide guidance for the lifting wheel assembly 10's movement trajectory and prevent the lifting wheel assembly 10 from shaking during lifting.

[0070] In some implementations, such as Figure 4 As shown, the guide member 20 has a guide groove 21 on the side wall facing the lifting wheel bracket 11;

[0071] The guide groove 21 extends downward at an angle from the side of the guide member 20 facing the washing machine towards the opposite side of the washing machine. The guide member is inserted into the guide groove 21 and slides up and down along the extension direction of the guide groove 21.

[0072] In the above scheme, by setting the structure of the guide member 20 to have an inclined extended guide groove 21, it is easier to guide the lifting wheel assembly 10 to move up and down, thereby simplifying the lifting motion of the lifting wheel 12.

[0073] Preferably, at least two guide members 20 with a certain height are located on both sides of the lifting wheel bracket 11 and at a position perpendicular to the moving direction of the lifting wheel assembly 10.

[0074] In some implementations, such as Figure 2 and Figure 3 As shown, the lifting wheel 12 is mounted on the lifting wheel bracket 11 via a rotating shaft 13, and the two ends of the rotating shaft 13 pass through the lifting wheel bracket 11 to form the guide.

[0075] After the two ends of the rotating shaft 13 form guides, they can be slidably connected to the guide groove 21, or directly inserted into the guide groove 21, and then move up and down along the extension direction of the guide groove 21. By using the two ends of the rotating shaft 13 passing through the lifting wheel bracket 11 as guides, the structural strength of the guides is ensured and the service life of the guides is extended.

[0076] Of course, the guide can also be a strip structure, column structure or other structure that can cooperate with the guide groove 21, which is directly set at both ends of the lifting wheel bracket 11 and extends outward.

[0077] Preferably, the lifting wheel assembly 10 includes two lifting wheel brackets 11, which are spaced apart on one side of the bottom of the washing machine. Each lifting wheel bracket 11 is equipped with a lifting wheel 12, and the rotating shaft 13 passes through the lifting wheel 12 and is connected to each lifting wheel bracket 11.

[0078] When there are two lifting wheel brackets 11, one lifting wheel 12 can be installed on each lifting wheel bracket 11. Each lifting wheel 12 can be connected by a rotating shaft 13, or they can be connected by different rotating shafts 13.

[0079] In some embodiments, the washing machine also includes a hidden groove (not shown) disposed at the bottom of the washing machine, recessed into the interior of the washing machine from the bottom wall 26 of the washing machine, for receiving the lifting wheel assembly 10.

[0080] In some implementations, such as Figure 2 and Figure 3 As shown, the first end 221 of the drive lever 22 is provided with a slider 222, the slider 222 is connected to the lifting wheel assembly 10, and the side of the slider 222 near the drive lever 22 is engaged with the inclined surface of the end face of the first end 221.

[0081] The second end 220 of the drive lever 22 controls the first end 221 to rotate up and down in the vertical direction, so as to drive the lifting wheel assembly 10 to reciprocate along the length direction of the drive lever 22 through the slider 222, thereby driving the guide to slide up and down along the guide member 20.

[0082] In the above scheme, by setting the end face of the first end 221 of the drive lever 22 to cooperate with the inclined end face of the slider 222, when the drive lever 22 rotates up and down in the vertical direction, the slider 222 will reciprocate along the length direction of the drive lever 22, thereby causing the guide to slide up and down along the guide 20, realizing the raising or lowering of the lifting wheel 12 relative to the ground. The moving device is simpler and the lifting operation of the lifting wheel 12 is more simplified, which not only reduces production costs but also improves the user experience.

[0083] It should be noted that the length direction of the drive lever 22 of the present invention is determined by the installation position of the drive lever 22. That is, depending on the installation position of the drive lever 22, the length direction of the drive lever 22 can point forward, backward, left or right, or even to the left front, right front, left rear or right rear of any point on the ground.

[0084] In some implementations, such as Figure 6 As shown, the first end 221 extends downward from the side of the drive lever 22 toward the washing machine in a direction close to the slider 222 to form a first inclined surface 2211, and one end of the slider 222 extends downward from the side of the slider 222 toward the washing machine in a direction away from the drive lever 22 to form a second inclined surface 2221.

[0085] The lower end 2212 of the first inclined surface 2211 slides in engagement with the second inclined surface 2221 to drive the slider 222 to reciprocate along the length of the drive lever 22.

[0086] In some implementations, such as Figure 6 As shown, the upper region of the second inclined surface 2221 is provided with a locking groove 2222, which matches the shape of the lower end 2212 to lock the position of the slider 222.

[0087] In the above scheme, by providing a locking groove 2222 in the upper region of the second inclined surface 2221, when the lower end 2212 moves toward the upper region of the second inclined surface 2221, the slider 222 gradually moves away from the drive lever 22. When the lower end 2212 moves into the locking groove 2222, the position of the slider 222 can be locked.

[0088] In some implementations, such as Figure 2 As shown, the drive lever 22 is located between two lifting wheel brackets 11, and the slider 222 is provided with a shaft hole 224. The shaft hole 224 is connected to each lifting wheel bracket 11 through the rotating shaft 13.

[0089] like Figure 5 As shown, the driving lever 22 is provided with limiting members 225 at both ends of the extension direction of the rotating shaft 13. The limiting members 225 extend from the end face near the driving lever 22 towards the slider 222 to restrict the movement of the driving lever 22 and the slider 222 in the extension direction of the rotating shaft 13.

[0090] In the above scheme, by providing limiting members 225 at both ends of the drive lever 22 located in the extension direction of the rotating shaft 13, the left and right movement of the drive lever 22 and the slider 222 in the extension direction of the rotating shaft 13 can be restricted, thereby improving the reliability of the lifting process of the lifting wheel 12.

[0091] Furthermore, the limiting member 225 is a limiting plate, and the end of the limiting plate near the washing machine is bent outward to form a flange 2251, which is fixedly connected to the bottom wall 26 of the washing machine.

[0092] The flange 2251 structure ensures the stability of the installation position of the limiting component 225 and improves the ability to restrict the left and right movement of the drive lever 22 and the slider 222 in the extension direction of the rotating shaft 13.

[0093] In some implementations, such as Figure 4 As shown, the washing machine also includes a plurality of feet 24 disposed at the bottom of the washing machine; the distance between the lowest point of the lifting wheel 12 and the bottom of the washing machine is H1, and the distance between the lowest point of the feet 24 and the bottom of the washing machine is H2;

[0094] The washing machine has a first state and a second state. In the first state, the lower end 2212 of the first inclined surface 2211 is located in the lower region of the second inclined surface 2221, satisfying H2 > H1. In the second state, the lower end 2212 of the first inclined surface 2211 is located in the locking groove 2222, satisfying H2 < H1.

[0095] When the washing machine needs to be moved, the second end 220 of the drive lever 22 rotates vertically downward (i.e., towards the ground), causing the lower end 2212 of the first inclined surface 2211 to slide upward along the second inclined surface 2221 to the upper region. This pushes the slider 222 to move away from the drive lever 22, causing the guide to move downward along the guide 20. This gradually increases the distance between the lifting wheel 12 and the bottom of the washing machine, so that the lifting wheel 12 is supported on the ground and the bottom foot 24 is suspended in the air. At this time, the lower end 2212 is locked in the locking groove 2222, i.e., the washing machine is in the second state. Then the lifting wheel 12 rotates to move the washing machine, making the movement of the washing machine more convenient, quick, time-saving, and labor-saving.

[0096] When the washing machine moves to the predetermined position, the second end 220 of the drive lever 22 rotates vertically upward (i.e., rotates away from the ground), causing the lower end 2212 of the first inclined surface 2211 to disengage from the locking groove 2222 and slide down the lower area along the second inclined surface 2221. This pushes the slider 222 to move closer to the drive lever 22, causing the guide to move upward along the guide 20. In other words, the distance between the lifting wheel 12 and the bottom of the washing machine gradually decreases, so that the lifting wheel 12 is suspended in the air. Then the bottom foot 24 touches the ground to support the washing machine, i.e., the washing machine is in the first state, preventing the washing machine from moving during operation.

[0097] In some implementations, such as Figure 2 As shown, the washing machine also includes a caster assembly 30, disposed on one side of the bottom of the washing machine, and the lifting caster assembly 10 is disposed on the other side of the bottom of the washing machine; the caster assembly 30 includes...

[0098] The moving wheel bracket 31 and the moving wheel 32 mounted on the moving wheel bracket 31 are provided with an elastic body 33 on the outer peripheral surface of the moving wheel 32 to improve the friction between the moving wheel 32 and the ground;

[0099] The elastic body 33 is integrally formed with the movable wheel 32, or the elastic body 33 is mounted on the outer peripheral surface of the movable wheel 32;

[0100] Preferably, the elastomer 33 is rubber, and the washing machine is a pulsator washing machine.

[0101] It is understood that the movable wheel 32 can be a fixed wheel, a swivel wheel, a caster, or other wheels that enable the washing machine to move. The movable wheel 32 can be connected to the movable wheel bracket 31 through a connecting shaft.

[0102] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A washing machine, characterized in that, include: A lifting wheel assembly (10) is provided at the bottom of the washing machine (1). The lifting wheel assembly (10) includes a lifting wheel bracket (11) and lifting wheels (12) mounted on the lifting wheel bracket (11). A drive lever (22) is connected to the bottom of the washing machine (1) via an elastic element (227). The first end (221) of the drive lever (22) is connected to the lifting wheel assembly (10). The distance between the lifting wheel (12) and the bottom of the washing machine (1) is adjusted by controlling the second end (220) of the drive lever (22). A movable support frame (228) is connected to the drive lever (22). The lowest point of the movable support frame (228) is lower than the lowest point of the drive lever (22). By driving the second end (220) of the drive lever (22) to move downward, the movable support frame (228) is supported on the ground, providing support force for the rotation of the drive lever (22). The washing machine (1) also includes, At least two guide members (20) of a certain height are respectively installed at the bottom of the washing machine (1) and located on both sides of the lifting wheel bracket (11); the lifting wheel bracket (11) is respectively equipped with outwardly extending guide members on both sides. The first end (221) of the drive lever (22) is provided with a slider (222), the slider (222) is connected to the lifting wheel assembly (10), and the side of the slider (222) near the drive lever (22) is engaged with the inclined end face of the first end (221); The first end (221) extends downward from the side of the drive lever (22) toward the washing machine (1) in a direction close to the slider (222) to form a first inclined surface (2211), and one end of the slider (222) extends downward from the side of the slider (222) toward the washing machine (1) in a direction away from the drive lever to form a second inclined surface (2221); The lower end (2212) of the first inclined surface (2211) is slidably engaged with the second inclined surface (2221) to drive the slider (222) to reciprocate along the length direction of the drive lever (22); The upper region of the second inclined surface (2221) is provided with a locking groove (2222) that matches the shape of the lower end (2212) to lock the position of the slider (222).

2. A washing machine according to claim 1, characterized in that: The movable support frame (228) includes, The first support plate (2281) and the second support plate (2282) are located on both sides of the drive lever (22) and are connected to the first end (221) via a shaft (226); The lowest point of the first support plate (2281) and the lowest point of the second support plate (2282) are located on the same horizontal plane.

3. A washing machine according to claim 2, characterized in that: The movable support frame (228) also includes, A connecting plate (2283) is located between the first support plate (2281) and the second support plate (2282) and is connected to the end of the first support plate (2281) and the second support plate (2282) near the washing machine (1).

4. A washing machine according to claim 3, characterized in that: The connecting plate (2283) is provided with a through hole, and the elastic element (227) passes through the through hole and is connected to the driving lever (22).

5. A washing machine according to any one of claims 1-4, characterized in that: The guide is slidably connected to the guide member (20); The second end (220) of the drive lever (22) rotates up and down in the vertical direction, thereby driving the guide to slide up and down along the guide (20) through the first end (221) of the drive lever (22) to adjust the distance between the lifting wheel (12) and the bottom of the washing machine (1).

6. A washing machine according to claim 5, characterized in that: The guide member (20) has a guide groove (21) on the side wall facing the lifting wheel bracket (11); The guide groove (21) extends downward at an angle from the side of the guide member (20) facing the washing machine (1) towards the opposite side of the washing machine (1). The guide member is inserted into the guide groove (21) and slides up and down along the extension direction of the guide groove (21).

7. A washing machine according to claim 6, characterized in that: The lifting wheel (12) is mounted on the lifting wheel bracket (11) via a rotating shaft (13), and the two ends of the rotating shaft (13) pass through the lifting wheel bracket (11) to form the guide.

8. A washing machine according to claim 5, characterized in that: The second end (220) of the drive lever (22) controls the first end (221) to rotate up and down in the vertical direction, so as to drive the lifting wheel assembly (10) to move back and forth along the length direction of the drive lever (22) through the slider (222), thereby driving the guide to slide up and down along the guide (20).

9. A washing machine according to claim 8, characterized in that: The washing machine (1) also includes, Multiple feet (24) are provided at the bottom of the washing machine (1); The distance between the lowest point of the lifting wheel (12) and the bottom of the washing machine (1) is H1, and the distance between the lowest point of the foot (24) and the bottom of the washing machine (1) is H2; The washing machine (1) has a first state and a second state. In the first state, the lower end (2212) of the first inclined surface (2211) is located in the lower region of the second inclined surface (2221), satisfying that H2 > H1. In the second state, the lower end (2212) of the first inclined surface (2211) is located in the locking groove (2222), satisfying that H2 < H1.

Citation Information

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