Base mechanism of household appliance and household appliance

Abstract

The utility model relates to the field of household appliances, particularly provides a base mechanism of a household appliance and the household appliance, and aims to solve the problem of how to easily and stably switch use scenes of the household appliance. In order to achieve the purpose, the base mechanism of the household appliance comprises a bottom foot assembly and a movable support wheel set, the bottom foot assembly is arranged at the bottom of the household appliance and comprises at least two telescopic bottom feet, and all the telescopic bottom feet are arranged to be capable of automatically leveling the household appliance; the movable support wheel set is arranged at the bottom of the household appliance and arranged to have a retracted state and an unfolded state, the bottom foot assembly can support the household appliance in the retracted state, and the household appliance can be driven to move in the unfolded state. By means of the technical scheme, when a user needs to move the equipment, the movable support wheel sets can be unfolded, after movement is stopped, the movable support wheel sets can be retracted, after the bottom foot assemblies make contact with the ground, the telescopic bottom feet conduct leveling operation, it is ensured that the equipment immediately recovers to the stable state, and the use scene of the washing machine can be seamlessly and stably switched.

Description

Technical Field

[0001] The present application relates to the field of household appliances, and specifically provides a base mechanism for a household appliance and a household appliance. Background Art

[0002] In modern household life, household appliances have become essential tools for daily life. With the increasing complexity of the functions of household appliances, users' requirements for their convenience, stability, and usage experience are also continuously improving.

[0003] Traditional household appliances usually adopt a fixed base design. Although it can provide a certain degree of stability, when the device needs to be moved, users often need to lift the device, which is cumbersome to operate and easily damages the ground. For some devices that require precise leveling (such as washing machines, refrigerators, etc.), when placing them, it is required that the device can be stably and horizontally placed to avoid functional abnormalities or damage caused by tilting.

[0004] Therefore, there is a need in the art for a new base mechanism for a household appliance and a household appliance to solve the problem of how to easily and stably switch the usage scenarios of household appliances. Summary of the Invention

[0005] The present application aims to solve the above technical problems, that is, to solve the problem of how to easily and stably switch the usage scenarios of household appliances.

[0006] In a first aspect, the present application provides a base mechanism for a household appliance, which is characterized in that it includes: a foot component, the foot component is arranged at the bottom of the household appliance, and the foot component includes at least two telescopic feet, and each telescopic foot is configured to be able to automatically level the household appliance; a moving support wheel set, the moving support wheel set is arranged at the bottom of the household appliance, and is configured to have a retracted state and an extended state. In the retracted state, the foot component can support the household appliance, and in the extended state, it can drive the household appliance to move.

[0007] In the case of adopting the above technical solution, when the user needs to move the washing machine, the moving support wheel set can be extended, so that the household appliance can be driven to move by the moving support wheel set. After stopping the movement, the moving support wheel set can be retracted. After the foot component contacts the ground, the telescopic feet perform a leveling operation to ensure that the device immediately returns to a stable state. Without any additional operations, the movement and stability of the device can be achieved, and thus the usage scenarios of the washing machine can be seamlessly and stably switched.

[0008] In an optional technical solution of the above base mechanism for a household appliance, the base mechanism further includes a base and a mounting portion provided on the base. The moving support wheel set is arranged on the base, and the foot component is arranged on the mounting portion.

[0009] In an optional technical solution of the base mechanism of the above-mentioned household appliance, the bottom of the household appliance has a protruding extension edge, the mounting portion includes a first mounting portion and a second mounting portion, the telescopic foot is arranged at the second mounting portion, the foot assembly also includes a raising structure, the raising structure is used to raise the telescopic foot so that the telescopic foot can protrude from the extension edge in a retracted state, the foot assembly also includes a first foot protruding from the extension edge, the first foot is arranged at the first mounting portion and is located at one side of the extension edge of the bottom of the household appliance, the telescopic foot is located at the bottom of the household appliance on the opposite side of the extension edge, or the telescopic foot is located at the bottom of the household appliance on one side of the extension edge, the first foot is located at the bottom of the household appliance on the opposite side of the extension edge.

[0010] When the above technical solution is adopted, no matter in which scenario, the first base and the telescopic base on one side of the extended edge and the other side can be supported on the ground, and the automatic leveling of the telescopic base can be combined, which enhances the stability of the washing machine under various ground conditions, avoids the tilting problem caused by inconsistent front and rear heights, improves the safety and reliability of the equipment in different usage conditions, and enables the equipment to form bottom protection while taking into account stability.

[0011] In an optional technical solution of the base mechanism of the above-mentioned household appliance, the first base foot is configured as a fixed base foot, the fixed base foot is arranged at the bottom of the household appliance on one side of the extended edge, and the telescopic base foot is arranged at the bottom of the household appliance on the opposite side of the extended edge.

[0012] When the above technical solution is adopted, the design of the extended edge is to protect the components at the bottom of the equipment from damage or scratches by external objects, and by providing a fixed foot on one side of the extended edge, the stability of the foot structure on this side can be ensured, and it will not be damaged due to excessive force. At the same time, the telescopic foot on the other side can be automatically adjusted according to the ground conditions to ensure that the force on the entire bottom structure is uniform and reduce the risk of damage. In addition, the fixed foot is designed to be non-adjustable, which can provide a stable foundation for the equipment, especially in the front position, which can effectively prevent the front end of the equipment from shaking or tilting during use. The telescopic foot on the opposite side provides flexibility and can adjust the height according to actual needs, so that the equipment can maintain stable operation in various scenarios.

[0013] In an optional technical solution of the base mechanism of the above-mentioned household appliance, the base assembly also includes a second pad, the fixed base includes a support pad and a first connecting rod, the first connecting rod is connected to one side of the support pad, the first connecting rod passes through the second pad and the first mounting portion and is connected to the bottom of the household appliance.

[0014] In the case of adopting the above technical solution, since the first connecting rod passes through the second cushion block and the first mounting portion and is connected to the bottom of the household appliance, the second cushion block provides an additional support layer, enhancing the stability of the fixed foot, enabling the device to remain stable under various ground conditions and not being easily tilted or moved due to external forces or vibrations. The presence of the second cushion block allows fine-tuning of the height of the fixed foot by adjusting its thickness or material, thereby adapting to different ground conditions. This enables the device to remain level even on uneven ground, avoiding the problem of device tilt caused by uneven ground.

[0015] In an alternative technical solution of the base mechanism of the above household appliance, the first mounting portion and the extension edge enclose an installation groove with an opening facing the bottom of the household appliance, and the second cushion block is arranged in the installation groove.

[0016] In the case of adopting the above technical solution, the installation groove provides an additional constraint, making it difficult for the second cushion block to shift or fall off even during the long-term use of the device. In addition, it can also reduce its direct contact with the external environment, thereby reducing the aging or damage of the cushion block caused by friction and wear.

[0017] In an alternative technical solution of the base mechanism of the above household appliance, the heightening structure is configured as a first cushion block, which is fixed to the bottom of the household appliance through a second connecting rod with the second mounting portion, and the telescopic foot is installed on the second mounting portion or the first cushion block; and / or the base is attached to the bottom of the household appliance; and / or the moving direction of the moving support wheel set is consistent with the connecting line direction between the first foot and the telescopic foot on one side.

[0018] Since the moving direction of the moving support wheel set is consistent with the connecting line direction between the fixed foot and the telescopic foot on one side, with the front being the fixed foot and the rear being the telescopic foot, when the moving support wheel set moves along the connecting line direction of the fixed foot and the telescopic foot on one side, the ground conditions in the front can remain consistent, reducing the impact of ground changes in the front on the movement of the device, and the rear telescopic foot is adjusted according to the actual road conditions, so that the road conditions in the rear also tend to be consistent. This consistency of the front and rear road conditions ensures the smooth operation of the device and reduces the shaking or tilting of the device caused by ground changes.

[0019] In an alternative technical solution of the base mechanism of the above household appliance, the telescopic foot includes a foot seat, an adjusting foot, and a telescopic cavity. The foot seat is arranged on the mounting portion and sleeved on the adjusting foot. The adjusting foot is movably arranged in the height direction. The adjusting foot has a receiving cavity, and the telescopic cavity is arranged in the receiving cavity and is configured to drive the adjusting foot to move. The telescopic cavities of at least two of the telescopic feet are communicated through a communicating structure.

[0020] In an alternative technical solution of the base mechanism of the household appliance, the moving support wheel set includes a guide member, a moving support, and a moving wheel set. The guide member is fixed to the base. The guide member has an inclined surface with one side close to the base and the other side away from the base. The moving support is movably arranged on the base. The moving wheel set is mounted on the moving support. The moving support is provided with a guiding structure, and the guiding structure is configured to move away from the base along the inclined surface when the moving support moves in a preset direction, so that the moving support wheel set is in the unfolded state; or the moving support wheel set includes a connecting structure, a roller, a moving member, and a guiding structure. One side of the connecting structure is rotatably connected to the base, and the other side of the connecting structure is rotatably connected to the roller. The moving member is movably arranged on the base. The guiding structure is arranged on the moving member. When the moving member moves in a preset direction, the guiding structure can make the connecting structure rotate away from the mounting seat, so that the moving support wheel set is in the unfolded state.

[0021] On the other hand, the present application also provides a household appliance, which includes the base mechanism described in any of the above embodiments. Description of the Drawings

[0022] The preferred embodiments of the present application will be described below with reference to the drawings. In the drawings:

[0023] Figure 1 is a schematic structural view of the side of the household appliance of the present application;

[0024] Figure 2 is Figure 1 a schematic structural view of the base in

[0025] Figure 3 is a schematic structural view of the front of the household appliance of the present application;

[0026] Figure 4 is a schematic structural view of the bottom of the household appliance of the present application;

[0027] Figure 5 is a schematic structural view of the telescopic feet of the household appliance of the present application after being connected;

[0028] Figure 6 is Figure 5 an enlarged view of part A in

[0029] Figure 7 is a schematic view of a possible embodiment of the moving support wheel set of the household appliance of the present application.

[0030] Description of the Reference Numerals:

[0031] 1 - Base; 2 - Telescopic feet; 21 - Foot base; 211 - Liquid channel; 22 - Adjusting feet; 221 - Accommodating cavity; 23 - Telescopic cavity; 24 - Connecting structure; 3 - Moving support wheel set; 31 - Guide; 32 - Moving support; 321 - Guiding structure; 322 - Moving wheel set; 34 - Connecting structure; 35 - Roller; 36 - Moving part; 37 - Guiding structure; 381 - Handle; 382 - Cam structure; 39 - Elastic part; 4 - Extension edge; 5 - First foot; 51 - Support pad; 52 - First connecting rod; 53 - Fastening nut; 54 - Installation groove; 61 - Base; 62 - First installation part; 63 - Second installation part; 7 - First cushion block; 8 - Second cushion block. Detailed implementation manners

[0032] The preferred implementation manners of the present application will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these implementation manners are only used to explain the technical principle of the present application and are not intended to limit the protection scope of the present application. Those skilled in the art can make adjustments according to needs to adapt to specific application scenarios.

[0033] It should be noted that in the description of the present application, the terms "upper" and "lower" refer to the upper and lower parts of the household appliance with the height direction as the reference in the use state. "Front" refers to the direction close to the door with the horizontal direction in the use state of the household appliance as the reference, and "rear" refers to the direction close to its back with the horizontal direction in the use state of the household appliance as the reference. In addition, it should also be noted that in the description of the present application, unless otherwise clearly specified and limited, the terms "connected" and "connected" 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 directly connected or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0034] The present application provides a household appliance, which can be a washing machine, a washer-dryer, a dryer, a refrigerator, etc., and the present application does not limit this. For the convenience of description, the household appliance in the following text of the present application will be introduced taking a washing machine as an example.

[0035] As Figures 1 to 7As shown in the figure, the washing machine of the present application includes a base mechanism, which includes a foot component and a movable caster component. The movable caster component includes a movable support wheel set 3. The foot component is provided at the bottom of the household appliance. The foot component includes at least two telescopic feet 2, and each telescopic foot 2 is configured to automatically level the household appliance. The movable support wheel set 3 is provided at the bottom of the household appliance and is configured to have a retracted state and an extended state. In the retracted state, the foot component can support the household appliance, and in the extended state, it can drive the household appliance to move. Among them, the bottom of the household appliance is the base, which can also be called the bottom plate. The middle part of the base 1 can be empty or a non-hollow plate, and the present application does not make specific restrictions on this.

[0036] With the above setting method, when the user needs to move the washing machine, the movable support wheel set 3 can be extended, so that the household appliance can be driven to move through the movable support wheel set 3. After stopping the movement, the movable support wheel set 3 can be retracted. After the foot component contacts the ground, the telescopic feet 2 perform a leveling operation to ensure that the device immediately returns to a stable state. Without any additional operations, the movement and stability of the device can be achieved, and thus the use scenarios of the washing machine can be seamlessly and stably switched.

[0037] As a possible implementation manner, referring to Figures 2 to 4 , the bottom of the washing machine has an extension edge 4. The extension edge 4 can be located on the side close to the washing machine door body, that is, the front side of the washing machine. The extension edge 4 protrudes from the base 1. The foot component further includes a first cushion block 7, which is used to raise the telescopic feet 2 so that the telescopic feet 2 can protrude from the extension edge 4 in the retracted state. The foot component further includes a first foot 5 that protrudes from the extension edge 4. The first foot 5 is located on one side of the base 1 at the extension edge 4, and the telescopic feet 2 are located on the opposite side of the base 1 at the extension edge 4. It can be understood that the extension edge 4 can be understood as the extension edge 4 extending downward on the bottom shell of the washing machine, or the extension edge 4 extending downward on the bottom side of the front shell of the washing machine, etc. Among them, the extension edge 4 can be fixedly connected to the base 1. For example, the base 1 has a flanging, and after the flanging is fitted with the extension edge 4, it is fixedly connected by means of bolt connection, welding, etc., so as to enhance the structural strength of the washing machine and improve the overall stability. Further, the telescopic feet 2 and the first feet 5 are in a state on the same horizontal plane to improve the stability of the device. The number of telescopic feet 2 can be two, which can be respectively located on the opposite sides in the length direction of the extension edge 4. The number of the first feet 5 can also be two, and it can also be located on the opposite sides in the length direction of the extension edge 4.

[0038] Among them, the extension edge 4 can extend along the width direction of the washing machine (the direction perpendicular to the front-back direction). The extension edge 4 is used to provide protection for the components at the bottom of the washing machine, effectively preventing damage or scratches to the bottom structure of the washing machine by external objects, and can also serve as a decorative panel. However, the applicant found during use that when the washing machine is equipped with such an extension edge 4 and the telescopic feet 2 are used, in some usage scenarios, such as uneven ground, the situation where one side of the extension edge 4 of the washing machine is higher and the other side is lower may occur, such as the front being higher than the rear, resulting in the overall instability of the washing machine and affecting the normal operation and service life of the washing machine. Therefore, in this application, the telescopic feet 2 are raised by the first cushion block 7, so that the telescopic feet 2 can protrude from the extension edge 4 in the retracted state, and the telescopic feet 2 and the first feet 5 protruding from the extension edge 4 are respectively located on one side and the opposite side of the base 1 at the extension edge 4. Thus, in any scenario, the base 1 can be supported on the ground by the first feet 5 and the telescopic feet 2 on one side and the opposite side of the extension edge 4. Combined with the automatic leveling of the telescopic feet 2, the stability of the washing machine under various ground conditions is enhanced, the tilting problem caused by inconsistent front and rear heights is avoided, the safety and reliability of the equipment in different usage states are improved, and the equipment can take into account the stability while forming bottom protection.

[0039] As a possible implementation manner, the first feet 5 are configured as fixed feet, the fixed feet are provided on one side of the base 1 at the extension edge 4, and the telescopic feet 2 are provided on the opposite side of the base 1 at the extension edge 4.

[0040] The design of the extension edge 4 is to protect the components at the bottom of the equipment from damage or scratches by external objects. By setting fixed feet on one side of the extension edge 4, the stability of the feet structure on this side can be ensured, and it will not be damaged due to excessive force. At the same time, the telescopic feet 2 on the other side can be automatically adjusted according to the ground conditions to ensure uniform force on the entire bottom structure and reduce the risk of damage. In addition, the fixed feet are designed to be non-adjustable, which can provide a stable foundation for the equipment. Especially at the front side position, it can effectively prevent the front end of the equipment from shaking or tilting during use. The telescopic feet 2 on the opposite side provide flexibility and can adjust the height according to actual needs, enabling the equipment to operate smoothly in various scenarios.

[0041] As a possible implementation manner, the mobile caster assembly further includes a base 61 and a first mounting portion 62 and a second mounting portion 63 provided on the base 61. The mobile bracket wheel set 3 is provided on the base 61. The first mounting portion 62 is mounted on the fixed feet, and the second mounting portion 63 is mounted on the telescopic feet 2. Both the first mounting portion 62 and the second mounting portion 63 can be plate-like structures, so that when connecting to the feet, they can act as gaskets to improve the connection stability and structural strength.

[0042] The above setting method enables the base 61 and the mobile support wheel set 3 to jointly form a module, facilitating the disassembly of the module, and thus facilitating maintenance and replacement. In addition, the fixed feet are installed at the first installation part 62, and the telescopic feet 2 are installed at the second installation part 63, which can not only improve the installation strength at the feet, but also further enhance the overall connection strength between the base 61 and the base 1, making the installation of the mobile support wheel set 3 more stable, thereby improving the overall stability of the device. Especially under complex ground conditions or frequent movement, the device can always move smoothly.

[0043] Possibly, the base 61 is attached to the bottom side of the base 1. Since the base 61 is attached to the bottom side of the base 1, the bottom support area is increased, thereby improving the contact stability of the washing machine with the ground during movement, reducing the shaking and displacement caused by vibration, ensuring that the device remains stable, and also ensuring the horizontal installation of the mobile support wheel set.

[0044] As a possible implementation manner, the foot assembly further includes a second cushion block 8. The fixed foot includes a support pad 51 and a first connecting rod 52. The first connecting rod 52 is connected to one side of the support pad 51. The first connecting rod 52 passes through the second cushion block 8 and the first installation part 62 and is connected to the base 1. It can be understood that the first cushion block 7 and the second cushion block 8 can be independent components or two parts of an integral cushion block structure. These structures do not deviate from the principle of the present application and are all within the protection scope of the present application.

[0045] Among them, the first installation part 62 can be located between the base 1 and the second cushion block 8, or the first installation part 62 can be pressed on the second cushion block 8. The present application does not limit its specific position. The first connecting rod 52 can be a threaded rod. In this case, a fastening nut 53 can be sleeved on the threaded rod. The fastening nut 53 fastens the first installation part 62 and the second cushion block 8 to the base 1. The first installation part 62 can be a straight plate-shaped structure to act as a gasket to improve the connection stability. However, this is not restrictive, and its fastening method can be adjusted. For example, the first connecting rod 52 is a connecting rod with a buckle structure. After the first connecting rod 52 is fixed to the base 1, the buckle structure is clamped with the first installation part 62 and / or the second cushion block 8, etc. These adjustments do not deviate from the principle of the present application and are all within the protection scope of the present application.

[0046] Since the first connecting rod 52 passes through the second cushion block 8 and the first mounting portion 62 and is connected to the base 1, the second cushion block 8 provides an additional support layer, enhancing the stability of the fixed foot, enabling the device to remain stable under various ground conditions and not easily tilt or move due to external forces or vibrations. The presence of the second cushion block 8 allows the height of the fixed foot to be finely adjusted by adjusting its thickness or material, thereby adapting to different ground conditions. This enables the device to remain level even on uneven ground, avoiding the problem of device tilt caused by uneven ground.

[0047] As a possible implementation, the first mounting portion 62 and the extension edge 4 enclose a mounting groove 54 with an opening facing the base 1, and the second cushion block 8 is disposed in the mounting groove 54. The mounting groove 54 provides an additional constraint, making it difficult for the second cushion block 8 to shift or fall off even during long-term use of the device. In addition, it can also reduce its direct contact with the external environment, thereby reducing the aging or damage of the cushion block caused by friction and wear.

[0048] As a possible implementation, the first cushion block 7 and the second mounting portion 63 are fastened to the base 1 through a second connecting rod, and the telescopic foot 2 is mounted on the second mounting portion 63 or the first cushion block 7. The second connecting rod can be a bolt, so that the first cushion block 7 and the second mounting portion 63 are fastened together to the threaded hole of the base 1 through the bolt, and then the telescopic foot 2 is fastened to the second mounting portion 63 or the first cushion block 7 through a bolt or a screw. Among them, the second mounting portion 63 can be disposed between the base 1 and the first cushion block 7 or pressed on the first cushion block 7. When the second mounting portion 63 is pressed on the first cushion block 7, the telescopic foot 2 can be mounted on the second mounting portion 63. When the second mounting portion 63 is disposed between the base 1 and the first cushion block 7, the telescopic foot 2 can be mounted on the first cushion block 7. It should be noted that the above mounting method is not fixed. For example, it can also be replaced by clamping, welding, etc. These adjustments do not deviate from the principle of the present application and are within the protection scope of the present application.

[0049] The above setting method can significantly enhance the overall firmness of the foot assembly. This multi-layer fastening design ensures a tight connection between the first cushion block 7, the second mounting portion 63 and the base 1, avoiding looseness problems caused by vibration or long-term use, providing a stable foundation for the installation of the telescopic foot 2, and thus improving the stability of the device.

[0050] Possibly, the first mounting portion 62 and the second mounting portion 63 can be disposed on the same side of the base 61. This side can be closer to the edge of the base 1, and this side is pressed on the first cushion block 7 and the second cushion block 8. The base 61 is bent relative to this side and fits against the base 1.

[0051] Possibly, the distance from the extending edge 4 to the base 1 is H, the thicknesses of the first cushion block 7 and the second cushion block 8 are both H2, and the wall thicknesses of the first mounting portion 62 and the second mounting portion 63 are both H1, where H2 + H1 ≤ H, so that the accessories and non-appearance components below the bottom shell are preferably shielded.

[0052] As a possible implementation manner, the moving direction of the moving support wheel set 3 is consistent with the direction of the connection line between the fixed foot and the telescopic foot 2 on one side. With the above setting method, with the fixed foot at the front and the telescopic foot 2 at the rear, when the moving support wheel set 3 moves along the connection line between the fixed foot and the telescopic foot 2 on one side, the ground conditions in the front can remain consistent, reducing the influence of the ground changes in the front on the movement of the device. The telescopic foot 2 at the rear is adjusted according to the actual road conditions, so that the road conditions at the rear also tend to be consistent. This consistency of the front and rear road conditions ensures the stable operation of the device and reduces the shaking or tilting of the device caused by ground changes.

[0053] As a possible implementation manner, referring to Figure 5 and Figure 6 , the telescopic foot 2 includes a foot base 21, an adjusting foot 22, and a telescopic cavity 23. The foot base 21 is installed on the second mounting portion 63 or the first cushion block 7 and sleeved on the adjusting foot 22. The adjusting foot 22 is movably arranged in the height direction. The adjusting foot 22 has a receiving cavity 221. The telescopic cavity 23 is arranged in the receiving cavity 221 and is configured to drive the adjusting foot 22 to move. The telescopic cavities 23 of at least two telescopic feet 2 are connected through a communication structure 24. The communication structure 24 can be a pipe, or a combination of a pipe and a liquid storage tank that are interconnected, etc. Among them, the telescopic cavity 23 can be a corrugated cavity made of a flexible material. The flexible material can be rubber, etc., and it can be fixed or in contact connection with the inner wall corresponding to the receiving cavity 221 and abutted against the foot base 21. However, this is not restrictive. The telescopic cavity 23 can also be a rubber bladder, etc.

[0054] Among them, a hydraulic medium can be filled in the telescopic cavity 23. Under the action of pressure, the hydraulic medium can flow between the interconnected telescopic cavities 23. When the ground is uneven, different pressures are generated due to the unevenness. The fluidity of the hydraulic medium enables adaptive adjustment of the telescopic lengths between the telescopic cavities 23, thereby driving the adjusting foot 22 to perform adaptive telescoping relative to the foot base 21. After the hydraulic medium stops flowing, automatic leveling of the telescopic foot 2 can be achieved.

[0055] The way that each telescopic cavity 23 is connected through the connecting structure 24 can be as follows: Each foot base 21 is provided with a liquid channel 211. Each telescopic cavity 23 has a liquid passing port. The liquid passing port of each telescopic foot 2 is connected to one end of the liquid channel 211. The other ends of the liquid channels 211 of each telescopic foot 2 are connected through the connecting structure 24. Possibly, an installation groove is formed inside the foot base 21. A first limiting ring protruding inward is provided at the notch of the installation groove. A second limiting ring is provided on the outer wall of the adjusting foot 22. The second limiting ring is located above the first limiting ring so that the first limiting ring provides limitation to prevent the adjusting foot 22 from falling off.

[0056] It should be noted that although the telescopic foot 2 of the present application is described by taking a hydraulic foot as an example, this is not intended to limit the protection scope of the present application. As long as the telescopic foot 2 has the function of automatic leveling, it can be any existing or possibly emerging structure in the future. For example, the telescopic foot is configured as an electric telescopic foot, that is, the foot is driven to extend and retract by a motor and a transmission assembly. The motor can be a small DC motor or a stepper motor. The motor is installed at a specific position at the bottom of the washing machine, and its stability is ensured through a fixed bracket. The output shaft of the motor is connected to the transmission assembly. The transmission assembly can be a gear set or a lead screw-nut mechanism. If it is a lead screw-nut mechanism, the motor drives the lead screw to rotate, and the nut is connected to the foot. As the lead screw rotates, the nut moves up and down along the lead screw, thereby driving the foot to extend and retract. In order to achieve the automatic leveling function, a corresponding control circuit and sensors can be equipped. The sensors can detect the horizontal state of the washing machine, such as a gyroscope, an acceleration sensor, etc. These sensors transmit information such as the tilt angle of the washing machine to the control circuit. The control circuit judges whether the washing machine is in a horizontal state according to the signals of the sensors and controls the operation of the motor to adjust the length of the foot until the washing machine reaches a horizontal state.

[0057] Next, the present application will introduce the structure of the moving support wheel set 3 by taking two possible implementation manners as examples.

[0058] The first possible implementation manner, refer to Figure 2 and Figure 4, the moving support wheel set 3 includes a guide member 31, a moving support 32, and a moving wheel set 322. The guide member 31 is fixed to the base. The moving support 32 is movably arranged on the base 61. The moving wheel set 322 is installed on the moving support 32. The guide member 31 has an inclined surface with one side close to the base 1 and the other side away from the base 1, that is, the inclined surface extends obliquely downward from the side close to the base 1 to the other side. The moving support 32 is provided with a guiding structure 321, and the guiding structure 321 is arranged to be able to move away from the base 1 in the direction of the inclined surface when the moving support 32 moves in a preset direction, so that the moving support wheel set 3 is in an unfolded state. The present application does not limit the specific shape of the guide member 31, which can be a triangular pyramid, a wedge, etc. The guiding structure 321 can be a chute adapted to the inclined surface, or a rotating shaft on the moving wheel set 322, etc. It can be understood that the preset direction is along the direction close to the inclined surface.

[0059] When the moving support wheel set 3 is in a retracted state, the moving support 32 can be detachably installed on the base, such as by clamping, or by providing an abutting structure on the base to abut against the moving support 32, etc. At this time, the foot assembly supports on the ground; when it is necessary to move the washing machine, the moving support 32 moves towards the inclined surface of the guide member 31. Under the cooperation of the guiding structure 321 such as a chute on the moving support 32 and the inclined surface, the moving support 32 drops, and the moving wheel set 322 supports on the ground, so that the washing machine can be driven to move.

[0060] Among them, the number of the moving support wheel sets 3 can be two, and they are respectively located on the opposite sides of the base 1, such as the opposite sides in the length direction of the extension edge 4. The moving support 32 among them is arranged along the front-back direction of the base 1. The moving wheel set 322 includes a first wheel and a second wheel. A first wheel is provided on the front side of each moving support 32, and a second wheel is provided on the rear side. The two moving supports 32 can be connected by a cross beam. The cross beam can be connected to a cam structure 382, and a handle 381 is provided on the cam structure 382, so that the cam structure 382 is driven to rotate by the handle 381, and then the two-sided moving supports 32 are driven to reciprocate by the cross beam. It should be noted that the above transmission method is only exemplary. As long as it can drive the moving support 32 to reciprocate, its setting method can be adjusted. For example, through a link mechanism, a cam mechanism, a gear-rack mechanism, a crank mechanism, etc. with a handle, or by using an electric push rod or a cylinder, etc. to drive the cross beam or the two-sided moving supports 32 separately. These adjustments do not deviate from the principle of the present application and are all within the protection scope of the present application.

[0061] It should be noted that although this application is introduced with the number of the mobile support wheel sets 3 being 2, this is not intended to limit the protection scope of this application. Its setting method can be adjusted. For example, it can be one, which can be arranged in the middle of the base 1, and two rollers 35 distributed at intervals are provided at the front of the mobile support 32, and two rollers 35 distributed at intervals are provided at the rear of the mobile support 32; or the mobile support wheel sets 3 are arranged as 3, and the mobile supports 32 of the three mobile support wheel sets 3 are connected by a cross beam for easy driving; or the cross beam is omitted and each mobile support 32 is driven separately, etc. These adjustments do not deviate from the principle of this application and are all within the protection scope of this application.

[0062] The second possible implementation manner, referring to Figure 7 , the mobile support wheel set 3 includes a connection structure 34, a roller 35, a moving member 36 and a guiding structure 37. One side of the connection structure 34 is rotatably connected to the base 61, and the other side of the connection structure 34 is rotatably connected to the roller 35. The moving member 36 is movably arranged on the base 61, and the guiding structure 37 is arranged on the moving member 36. When the moving member 36 moves along a preset direction, the guiding structure 37 can make the connection structure 34 rotate away from the base 1 so that the mobile support wheel set 3 is in an unfolded state. It can be understood that the above preset direction is the direction of moving towards the connection structure 34. When the mobile support wheel set 3 needs to be unfolded, the moving member 36 can be made to move along the preset direction. When the moving member 36 moves along the preset direction, the guiding structure 37 drives the connection structure 34 to rotate relative to the base 61 and makes the connection structure 34 move along its guiding direction, that is, move away from the base 1, so that the roller 35 can descend and drive the washing machine to move.

[0063] Possibly, the base 61 can include a bottom plate and vertical plates provided on opposite sides of the bottom plate. The vertical plates on both sides and the bottom plate enclose to form a guiding groove. The moving member 36 is configured as a moving plate, which is movably arranged in the guiding groove along the length direction of the guiding groove. The guiding structure 37 on the moving plate can have a guiding inclined surface with one end close to the moving plate and the other end far from the moving plate. The connection structure 34 can be rod-shaped and one end is rotatably connected to the vertical plate and the other end is rotatably connected to the roller 35. However, this is not restrictive. The connection structure 34 can also be plate-shaped and one side is rotatably connected to the vertical plate and the other side is rotatably connected to the roller 35. When the moving plate moves along the length direction of the guiding groove, the roller 35 rolls from one end of the guiding inclined surface close to the moving plate to the other end opposite to the guiding inclined surface until finally the connection structure 34 abuts against the guiding inclined surface, so that the roller 35 drops to contact the ground.

[0064] Possibly, when the connecting structure 34 is a rod-shaped connecting rod, it can be located on opposite sides of the roller 35. The connecting rods on both sides can be rotatably connected to the vertical plates on both sides through a rotating shaft. The connecting rods on both sides are rotatably connected to the shaft of the roller 35 on the other side of the rotating shaft to improve stability.

[0065] Possibly, the moving support wheel set 3 further includes an elastic member 39. The elastic member 39 is used to move the connecting structure 34 towards the base 1 under the action of elastic force. The elastic member 39 can be a torsion spring. The torsion spring is sleeved on the rotating shaft that enables relative rotation between the connecting structure 34 and the base 61. The first end of the torsion spring can be connected to the base 61, such as connecting to the above-mentioned vertical plate or bottom plate. The other end of the torsion spring can be connected to the connecting structure 34 so that the connecting structure 34 can be in a retracted state (such as the connecting structure 34 being in contact with or having a gap with the bottom plate), and in the deployed state, it can provide an elastic force for the connecting structure 34 to rotate towards the base 61, so that when the moving plate moves in a direction opposite to the preset direction, the connecting structure 34 can be moved towards the base 61 until it returns to the initial retracted state. It should be noted that the structural form of the above elastic member 39 is not fixed. As long as it can move the connecting structure 34 towards the base 61 under the action of elastic force, its specific form can be adjusted. For example, the elastic member 39 is a telescopic spring. One end of the telescopic spring is connected to the bottom plate, and the other end of the telescopic spring is connected to the connecting structure 34. These adjustments do not deviate from the principle of the present application and are all within the protection scope of the present application.

[0066] It should be noted that the present application can also omit the setting of the elastic member 39. For example, a first magnetic attraction member is provided on the bottom plate or the moving member 36, and a second magnetic attraction member is provided on the connecting structure 34. Under the suction force of the first magnetic attraction member and the second magnetic attraction member, the connecting structure 34 and the roller 35 can be retracted. In the deployed state, the suction force between the first magnetic attraction member and the second magnetic attraction member can be reduced so that the connecting structure 34 and the roller 35 can be deployed, etc. As long as the moving support wheel set 3 can have a retracted state, these adjustments do not deviate from the principle of the present application and are all within the protection scope of the present application.

[0067] The number of the moving support wheel sets 3 can be two, and they are respectively located on opposite sides of the base 1, such as on opposite sides in the length direction of the extension edge 4. The moving support wheel sets 3 can be arranged along the front-back direction of the base 1. The above-mentioned connecting structure 34 and roller 35 can be rotatably connected to the front side and the rear side of the base 61 of each moving support wheel set 3.

[0068] Among them, the moving parts 36 of the mobile support wheel group 3 can be connected by a crossbeam, and the crossbeam is driven by a cam-link mechanism. A handle is provided on the cam-link mechanism to manually operate the mobile support wheel group 3 to rise and fall. However, this is not restrictive, and the setting of the crossbeam can also be omitted. The mobile support wheel groups 3 on both sides can be driven separately by handles and transmission components. The transmission component can be a connecting rod mechanism, a cam mechanism, a gear rack mechanism, a crank mechanism, etc., and the handle can be set across the extension edge. In addition, the driving method is not fixed. The driving method can be replaced by an electric push rod or a cylinder, etc. for driving. These adjustments do not deviate from the principles of this application and are all within the protection scope of this application.

[0069] It should be noted that, although the present application is introduced with the number of the mobile support wheel groups 3 being two, this is not intended to limit the protection scope of the present application, and the arrangement can be adjusted, for example, the mobile support wheel groups 3 are set to three, etc., and the movement results of the three mobile support wheel groups 3 are connected by a crossbeam for easy driving, and these adjustments do not deviate from the principle of the present application and are within the protection scope of the present application. In addition, the moving member 36 and the base 61 can be movably arranged via a slide rail, or can be fitted, etc. For example, when the fitting arrangement is made, when the moving member 36 is a moving plate, it can be inserted between the rotating shaft and the bottom plate that can rotate relatively between the connecting structure 34 and the base 61 to provide a limit, and these adjustments do not deviate from the principle of the present application and are within the protection scope of the present application.

[0070] In addition, it should be noted that although the mobile bracket wheel group 3 of the present application is introduced by taking the above two possible implementation modes as examples, this is not intended to limit the protection scope of the present application, and its specific form can be adjusted. The mobile bracket wheel group 3 can be any existing structure or any structure that may appear in the future, as long as it has a retracted state and an extended state, and can enable the base assembly to support the base 1 in the retracted state, and can drive the household appliance to move in the extended state, the adjustment of its specific form does not deviate from the principle of the present application and is within the protection scope of the present application.

[0071] It should be noted that, although the guide structure 37 of the present application is introduced as an example with a guide slope, this is not intended to limit the protection scope of the present application. For example, the guide structure 37 can be an arc-shaped guide member 31, a roller guide member 31 or other structures with a guide function, as long as it can guide the connection structure 34 to move along a preset direction when the moving member 36 moves, so that the roller 35 is extended or retracted. The specific form can be adjusted according to actual needs without deviating from the basic principle of the present application, and all belong to the protection scope of the present application.

[0072] As an alternative embodiment, although this application is introduced by taking the first foot 5 on one side of the extension edge 4 and the telescopic foot 2 on the opposite side of the extension edge 4 as an example, this is not intended to limit the protection scope of this application. For example, the telescopic foot 2 is on one side of the extension edge 4 and the first foot 5 is on the opposite side of the extension edge 4, etc. These adjustments do not deviate from the principle of this application and are all within the protection scope of this application.

[0073] It should be noted that although the heightening structure of this application is described by taking the first spacer 7 as an example, this is not intended to limit the protection scope of this application. As long as the heightening structure can heighten the telescopic foot 2, its specific form can be adjusted. For example, it can be a special-shaped structure with a certain height, etc. These adjustments do not deviate from the principle of this application and are all within the protection scope of this application.

[0074] So far, the technical solution of this application has been described in combination with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of this application is obviously not limited to these specific embodiments. Without departing from the principle of this application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this application.

Claims

1. A base mechanism for a household appliance, characterized in that Comprising: A foot component, which is provided at the bottom of the household appliance. The foot component includes at least two telescopic feet, and each telescopic foot is configured to automatically level the household appliance. A moving support wheel set, which is provided at the bottom of the household appliance and is configured to have a retracted state and an extended state. In the retracted state, the foot component can support the household appliance, and in the extended state, it can drive the household appliance to move.

2. The base mechanism of the household appliance according to claim 1, wherein The base mechanism further includes a base and a mounting portion provided on the base. The moving support wheel set is provided on the base, and the foot component is provided on the mounting portion.

3. The base mechanism of the household appliance according to claim 2, wherein The bottom of the household appliance has a protruding extension edge. The mounting portion includes a first mounting portion and a second mounting portion. The telescopic feet are provided on the second mounting portion. The foot component further includes a heightening structure for heightening the telescopic feet so that the telescopic feet can protrude beyond the extension edge in the retracted state. The foot component further includes a first foot protruding beyond the extension edge. The first foot is provided on the first mounting portion and is located on one side of the bottom of the household appliance at the extension edge, and the telescopic feet are located on the opposite side of the bottom of the household appliance at the extension edge, or the telescopic feet are located on one side of the bottom of the household appliance at the extension edge, and the first foot is located on the opposite side of the bottom of the household appliance at the extension edge.

4. The base mechanism of the household appliance according to claim 3, wherein The first foot is configured as a fixed foot, which is provided on one side of the bottom of the household appliance at the extension edge, and the telescopic feet are provided on the opposite side of the bottom of the household appliance at the extension edge.

5. The base mechanism of the household appliance according to claim 4, wherein The foot component further includes a second cushion block. The fixed foot includes a support pad and a first connecting rod. The first connecting rod is connected to one side of the support pad. The first connecting rod passes through the second cushion block and the first mounting portion and is connected to the bottom of the household appliance.

6. The base mechanism of the household appliance according to claim 5, wherein The first mounting portion and the extension edge enclose to form a mounting groove with an opening facing the bottom of the household appliance, and the second cushion block is provided in the mounting groove.

7. The base mechanism of the household appliance according to any one of claims 3 to 6, wherein The heightening structure is configured as a first cushion block, which is fixed to the bottom of the household appliance through a second connecting rod with the second mounting portion, and the telescopic feet are mounted on the second mounting portion or the first cushion block; and / or The base is attached to the bottom of the household appliance; and / or The moving direction of the moving support wheel set is consistent with the connecting line direction between the first foot and the telescopic feet on one side.

8. The base mechanism of the household appliance according to claim 2, wherein the telescopic feet include a foot base, an adjusting foot, and a telescopic cavity. The foot base is provided on the mounting portion and sleeved on the adjusting foot. The adjusting foot is movably arranged in the height direction. The adjusting foot has a receiving cavity, and the telescopic cavity is arranged in the receiving cavity and configured to drive the adjusting foot to move. The telescopic cavities of at least two of the telescopic feet are communicated through a communicating structure.

9. The base mechanism of the household appliance according to claim 2, wherein the moving support wheel set includes a guiding member, a moving support, and a moving wheel set. The guiding member is fixed to the base. The guiding member has an inclined surface with one side close to the base and the other side away from the base. The moving support is movably arranged on the base. The moving wheel set is installed on the moving support. The moving support is provided with a guiding structure, and the guiding structure is configured to move away from the base direction through the inclined surface when the moving support moves in a preset direction, so that the moving support wheel set is in the unfolded state; or the moving support wheel set includes a connecting structure, a roller, a moving member, and a guiding structure. One side of the connecting structure is rotatably connected to the base, and the other side of the connecting structure is rotatably connected to the roller. The moving member is movably arranged on the base. The guiding structure is arranged on the moving member. When the moving member moves in a preset direction, the guiding structure can make the connecting structure rotate away from the mounting seat direction, so that the moving support wheel set is in the unfolded state.

10. A household appliance, characterized in that, The household appliance includes the base mechanism according to any one of claims 1 to 9.

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