Base mechanism of household appliance and household appliance

Abstract

The invention relates to the field of household appliances, in particular to a base mechanism of a household appliance and the household appliance, and aims to solve the problem of how to achieve stability while forming bottom protection of an existing household appliance. In order to achieve the purpose, the bottom of the household appliance is provided with an extending edge arranged in a protruding mode, the base mechanism comprises a first bottom foot, a telescopic bottom foot assembly and a first heightening structure, and the first bottom foot is arranged at the bottom of the household appliance and protrudes out of the extending edge; the telescopic bottom foot assembly is provided with telescopic bottom feet arranged at the bottom of the household appliance and used for automatically leveling the household appliance. The first heightening structure is used for heightening the telescopic footing, so that the telescopic footing can protrude out of the extending edge in a retracted state; the telescopic bottom foot and the first bottom foot are located on one side and the opposite side of the extending edge of the bottom of the household appliance respectively. According to the scheme, the inclination problem caused by inconsistent front and back heights of the equipment can be avoided, and the equipment can also take the stability into consideration while forming bottom protection.

Description

Technical Field

[0001] This invention relates to the field of household appliances, specifically providing a base mechanism for a household appliance and the household appliance itself. Background Technology

[0002] With the continuous development of home appliances, their design not only demands functionality but also increasingly emphasizes durability. Traditional home appliances typically have their bottoms directly exposed to the external environment, making them susceptible to damage or scratches from external objects, thus affecting their lifespan. While extended edges on the bottom of home appliances can effectively protect critical components, these edges, despite their excellent protective performance, have revealed some problems in actual use.

[0003] Specifically, when home appliances are equipped with extended sides and telescopic feet, in scenarios where the ground is uneven or the appliance is not placed stably, the extended sides will cause one side of the appliance to be higher than the other. For example, if the appliance operates with the front higher than the back, the overall instability will significantly affect its normal operation, and prolonged use may damage the internal components of the appliance, thereby shortening its lifespan.

[0004] Accordingly, there is a need in the art for a new base mechanism for household appliances and a new household appliance to solve the above problems. Summary of the Invention

[0005] The present invention aims to solve the above-mentioned technical problem, namely, how existing household appliances can form bottom protection while also ensuring stability.

[0006] In a first aspect, the present invention provides a base mechanism for a household appliance, characterized in that the bottom of the household appliance has a protruding extension edge, the base mechanism comprising: a first foot, the first foot being disposed on the bottom of the household appliance and protruding from the extension edge; a telescopic foot assembly, the telescopic foot assembly having a telescopic foot disposed on the bottom of the household appliance for automatically leveling the household appliance; and a first elevating structure, the first elevating structure for elevating the telescopic foot so that the telescopic foot can protrude from the extension edge in a retracted state; the telescopic foot and the first foot are respectively located on one side and the opposite side of the extension edge on the bottom of the household appliance.

[0007] This invention elevates the telescopic feet using a first raised structure, allowing the telescopic feet to protrude beyond the extended side when retracted. The telescopic feet and the first foot protruding from the extended side are located on the bottom of the appliance, on one side and the opposite side of the extended side, respectively. This ensures that, regardless of the scenario, the first foot on one side of the extended side and the telescopic feet on the opposite side are supported on the ground. Combined with the automatic leveling of the telescopic feet, this enhances the stability of the washing machine under various floor conditions, preventing tilting caused by inconsistent front and rear heights. It improves the safety and reliability of the equipment under different usage conditions, providing both bottom protection and stability.

[0008] In the optional technical solution of the base mechanism of the aforementioned household appliance, the base mechanism further includes: a second elevation structure disposed at the bottom of the household appliance; a base comprising a straight plate structure pressed against the end of the second elevation structure and the extended side; and a movable support wheel assembly disposed on the straight plate structure, configured to have a retracted state and an extended state, wherein the first foot and the telescopic foot support the household appliance in the retracted state, and the household appliance can be moved in the extended state.

[0009] During use, it was found that when installing the movable support wheel assembly on a washing machine with the aforementioned extended edge, the extended edge would cause interference, preventing the movable support wheel assembly from being installed horizontally and thus affecting stability during movement. Therefore, this invention designs the base as a straight plate structure. This straight plate structure is precisely pressed onto the second raised structure at the bottom of the appliance and the end of the extended edge. This not only provides a stable and horizontal mounting surface for the movable support wheel assembly but also ensures that the movable support wheel assembly remains horizontal with the bottom of the appliance. This greatly improves the stability of the washing machine during movement, avoids vibration or obstructed movement caused by tilting or instability, extends the service life of the washing machine, and improves the user experience.

[0010] In the optional technical solution of the base mechanism of the above-mentioned household appliance, the first foot is configured as a fixed foot, the fixed foot is disposed on the bottom of the household appliance on one side of the extension side, and the telescopic foot is disposed on the bottom of the household appliance on the opposite side of the extension side.

[0011] The extended edge design is intended to protect the components at the bottom of the equipment from damage or scratches from external objects. By installing a fixed foot on one side of the extended edge, the stability of that side's foot structure is ensured, preventing damage from excessive stress. Meanwhile, the telescopic foot on the other side automatically adjusts according to ground conditions, ensuring even stress distribution across the entire bottom structure and reducing the risk of damage. Furthermore, the fixed foot is designed to be non-adjustable, providing a stable foundation for the equipment, especially at the front, effectively preventing wobbling or tilting during use. The telescopic foot on the opposite side offers flexibility, allowing the height to be adjusted as needed, enabling the equipment to operate smoothly in various environments.

[0012] In the optional technical solutions of the base mechanism of the above-mentioned household appliance, the base further includes a first mounting part and a second mounting part disposed on the straight plate structure, the first foot is disposed on the first mounting part, and the telescopic foot is disposed on the second mounting part.

[0013] The above-described configuration allows the base and the movable support wheel assembly to form a single module, facilitating disassembly for maintenance and replacement. Furthermore, the base is mounted on the first foot and telescopic foot via the first and second mounting parts, which not only improves the mounting strength at the foot but also enhances the overall connection between the base and the bottom of the appliance. This results in a more stable installation of the movable support wheel assembly, improving the overall stability of the equipment, especially under complex ground conditions or frequent movement, ensuring smooth operation.

[0014] In the optional technical solution of the base mechanism of the above-mentioned household appliance, the first foot is disposed on one side of the extension side of the bottom of the household appliance, and the telescopic foot is disposed on the opposite side of the extension side of the bottom of the household appliance. The first foot includes a support pad and a first connecting rod. The first connecting rod is connected to one side of the support pad and passes through the first mounting part and the second padding structure and is connected to the bottom of the household appliance.

[0015] Since the first connecting rod passes through the second raised structure and the first mounting part and is connected to the bottom of the household appliance, the second raised structure provides an additional support layer, which enhances the stability of the fixed feet, so that the equipment can remain stable under various ground conditions and is not easily tilted or moved by external forces or vibrations.

[0016] In the optional technical solution of the base mechanism of the above-mentioned household appliance, the second padding structure includes a first pad and a second pad, the first side of the straight plate structure is pressed on the first pad, the second side of the straight plate structure opposite to the first side is pressed on the second pad, and the first pad is provided with a connecting hole for the first connecting rod to pass through.

[0017] Because the first side of the straight plate structure is pressed against the first pad, and the second side of the straight plate structure opposite to the first side is pressed against the second pad, a more stable horizontal mounting surface is provided. Space can be left between the first and second pads to provide mounting positions for components at the bottom of household appliances, further providing a more precise horizontal reference surface for the straight plate structure.

[0018] In the optional technical solution of the base mechanism of the above-mentioned household appliance, the second mounting part and the first elevating structure are fixed to the bottom of the household appliance by the second connecting rod, and the telescopic foot is mounted on the second mounting part or the first elevating structure; and / or the moving direction of the movable bracket wheel group is consistent with the line direction connecting the first foot and the telescopic foot on one side.

[0019] In the optional technical solution of the base mechanism of the above-mentioned household appliance, the telescopic foot assembly further includes a connecting structure. The telescopic foot includes a foot base, an adjusting foot, and a telescopic cavity. The foot base is installed on the bottom of the household appliance and sleeved on the adjusting foot. The adjusting foot is movable along the height direction and has a receiving cavity. The telescopic cavity is disposed in the receiving cavity and is configured to drive the adjusting foot to move. The telescopic cavities of at least two telescopic feet are connected through the connecting structure.

[0020] In the optional technical solutions of the base mechanism of the aforementioned household appliance, the movable support wheel assembly includes a guide member, a movable support, and a movable wheel assembly. The guide member is fixed to the straight plate structure and has an inclined surface on one side close to the straight plate structure and on the other side away from the straight plate structure. The movable support is movably disposed on the straight plate structure, and the movable wheel assembly is mounted on the movable support. The movable support is provided with a guiding structure, which is configured to move away from the bottom of the household appliance via the inclined surface when the movable support moves in a preset direction, so that the movable support wheel assembly is in the unfolded state. Alternatively, the movable support wheel assembly includes a connecting structure, a roller, a movable 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 movable member is movably disposed on the base, and the guiding structure is disposed on the movable member. When the movable member moves in a preset direction, the guiding structure enables the connecting structure to rotate away from the bottom of the household appliance, so that the movable support wheel assembly is in the unfolded state.

[0021] In another aspect, the present invention also provides a household appliance that includes the base mechanism described in any of the above embodiments. Attached Figure Description

[0022] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0023] Figure 1 This is a schematic diagram of the front structure of the household appliance of the present invention;

[0024] Figure 2 This is a schematic diagram of the side structure of the household appliance of the present invention;

[0025] Figure 3 yes Figure 2 Structural diagram of the central base;

[0026] Figure 4 This is a schematic diagram of the bottom surface of the household appliance according to the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of the household appliance of the present invention after the telescopic feet are connected;

[0028] Figure 6 yes Figure 5 Enlarged view of point A in the middle;

[0029] Figure 7 This is a schematic diagram of a possible embodiment of the movable support wheel assembly for household appliances according to the present invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1-Base; 2-Telescopic foot; 21-Foot base; 211-Liquid channel; 22-Adjustable foot; 221-Receiving cavity; 23-Telescopic cavity; 24-Connecting structure; 3-Moving bracket wheel set; 32-Connecting structure; 33-Roller; 34-Moving component; 35-Guide structure; 36-Handle; 37-Elastic component; 4-Extending edge; 5-First foot; 51-Support pad; 52-First connecting rod; 53-Fasting nut; 6-Base; 61-Straight plate structure; 62-First mounting part; 63-Second mounting part; 7-First elevation structure; 8-Second elevation structure; 81-First pad; 82-Second pad. Detailed Implementation

[0032] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the invention and are not intended to limit the scope of protection of the invention. Those skilled in the art can make adjustments as needed to adapt to specific applications.

[0033] It should be noted that, in the description of this invention, the terms "upper" and "lower" refer to the upper and lower parts of the household appliance in its use state, based on the height direction. "Front" refers to the direction near the door, based on the horizontal direction of the household appliance in its use state, and "rear" refers to the direction near the back of the household appliance, based on the horizontal direction of the household appliance in its use state. Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it 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 according to the specific circumstances.

[0034] This invention provides a household appliance, which can be a washing machine, washer-dryer combo, dryer, or refrigerator, etc., and this invention does not limit the scope of the appliance. For ease of explanation, the household appliance of this invention will be described below using a washing machine as an example.

[0035] like Figures 1 to 7 As shown, the washing machine of the present invention has a protruding extension edge 4 at its bottom. The base mechanism of the washing machine includes a first foot 5, a telescopic foot assembly, and a first elevation structure 7. The first foot 5 is located at the bottom of the appliance and protrudes from the extension edge 4. The telescopic foot assembly has a telescopic foot 2 located at the bottom of the appliance for automatically leveling the appliance. The first elevation structure 7 is used to elevate the telescopic foot 2 so that the telescopic foot 2 can protrude from the extension edge 4 in the retracted state. The telescopic foot 2 and the first foot 5 are located on one side and the opposite side of the extension edge 4 at the bottom of the appliance, respectively. The extension edge 4 can be located on the side closer to the washing machine door, i.e., the front side of the washing machine. However, this is not a limitation, and its actual position can be adjusted according to the usage conditions. The bottom of the appliance is a base, also called a base plate. The middle part of the base 1 can be hollow or a non-hollow plate. The present invention does not impose specific limitations on this.

[0036] It can be understood that the extension edge 4 can be understood as an extension edge 4 extending downwards from the bottom shell of the washing machine, or as an extension edge 4 extending downwards from the bottom side of the front shell of the washing machine, etc. The extension edge 4 can be fixedly connected to the base 1. For example, the base 1 has a flange, and after the flange and the extension edge 4 are fitted together, they are fixed together by bolts, welding, etc., thereby enhancing the structural strength of the washing machine and improving its overall stability. Furthermore, the telescopic feet 2 and the first feet 5 are on the same horizontal plane to improve equipment stability. There can be two telescopic feet 2, located on opposite sides of the length of the extension edge 4, and there can also be two first feet 5, also located on opposite sides of the length of the extension edge 4.

[0037] The extension edge 4 can extend along the width direction of the washing machine (perpendicular to the front and back direction). The extension edge 4 is used to protect the components at the bottom of the washing machine to effectively prevent 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 this extension edge 4 and the telescopic feet 2 are used, in some usage scenarios, such as uneven ground, the extension edge 4 of the washing machine will be higher on one side and lower on the other side, such as the front being higher than the back, which will cause the washing machine to be unstable as a whole, affecting the normal operation and service life of the washing machine. Therefore, the present invention elevates the telescopic foot 2 through the first shim structure 7, so that the telescopic foot 2 can protrude from the extension side 4 in the retracted state. The telescopic foot 2 and the first foot 5 protruding from the extension side 4 are respectively located on one side and the opposite side of the base 1 on the extension side 4. Thus, in any scenario, the first foot 5 and the telescopic foot 2 on one side and the opposite side of the base 1 on the extension side 4 can be supported on the ground. With the automatic leveling of the telescopic foot 2, the stability of the washing machine under various ground conditions is enhanced, avoiding tilting problems caused by inconsistent front and rear heights. This improves the safety and reliability of the equipment under different usage conditions, allowing the equipment to form bottom protection while also ensuring stability.

[0038] In one possible implementation, the base mechanism further includes a second elevation structure 8 and a movable caster assembly. The movable caster assembly includes a base 6 and a movable support wheel set 3. The second elevation structure 8 is located on the bottom side of the base 1. The base 6 includes a straight plate structure 61, which is pressed against the ends of the second elevation structure 8 and the extension edge 4. The movable support wheel set 3 is located on the straight plate structure 61 and is configured to have a retracted state and an extended state. In the retracted state, the first foot 5 and the telescopic foot 2 can support the base 1. In the extended state, the household appliances can be moved.

[0039] The above solution allows the user to unfold the movable support wheel assembly 3 when the washing machine needs to be moved, thereby moving the household appliance through the movable support wheel assembly 3. After the movement stops, the movable support wheel assembly 3 can be retracted. After the first base and telescopic base assembly contact the ground, the telescopic base 2 performs a leveling operation to ensure that the equipment immediately returns to a stable state. The equipment can be moved and stabilized without any additional operation, thus enabling seamless and stable switching of the washing machine's usage scenarios.

[0040] Furthermore, during use, it was found that when installing the movable support wheel assembly 3, the extended edge 4 of the washing machine with the aforementioned extended edge interferes with the installation, preventing the movable support wheel assembly 3 from being installed horizontally and thus affecting its stability during movement. Therefore, this invention designs the base 6 as a straight plate structure 61. The straight plate structure 61 is precisely pressed onto the second elevation structure 8 and the end of the extended edge 4 on the bottom side of the base 1. This not only provides a stable and horizontal mounting surface for the movable support wheel assembly 3 but also ensures that the movable support wheel assembly 3 remains horizontal with the base 1, greatly improving the stability of the washing machine during movement. This avoids vibration or obstructed movement of the washing machine due to tilting or instability, extends the service life of the washing machine, and improves the user experience. Possibly, the second elevation structure 8 includes a first pad 81 and a second pad 82. The first side of the straight plate structure 61 is pressed onto the first pad 81, and the second side of the straight plate structure 61, opposite to the first side, is pressed onto the second pad 82, thereby providing a more stable horizontal mounting surface. It is understood that the first pad 81 and the second pad 82 can be independent components or two parts of an integrated pad structure. These structures do not deviate from the principles of the present invention and are all within the scope of protection of the present invention. When the first pad 81 and the second pad 82 are independent components, space can be left between them, thereby providing an installation position for the components at the bottom of the base 1 and further providing a more precise horizontal reference surface for the straight plate structure 61.

[0041] In one possible implementation, the first foot 5 is configured as a fixed foot, which is located on one side of the base 1 on the extension side 4, and the telescopic foot 2 is located on the opposite side of the base 1 on the extension side 4.

[0042] The extension edge 4 is designed to protect the components at the bottom of the device from damage or scratches from external objects. By setting a fixed foot on one side of the extension edge 4, the stability of the foot structure on that side can be ensured, preventing damage due to excessive force. Meanwhile, the telescopic foot 2 on the other side can automatically adjust according to ground conditions, ensuring even stress distribution across the entire bottom structure and reducing the risk of damage. Furthermore, the fixed foot is designed to be non-adjustable, providing a stable foundation for the device, especially at the front, effectively preventing wobbling or tilting during use. The telescopic foot 2 on the opposite side provides flexibility, allowing the height to be adjusted as needed, enabling the device to operate smoothly in various scenarios.

[0043] In one possible implementation, the base 6 also includes a first mounting portion 62 and a second mounting portion 63 disposed on the straight plate structure 61, with the fixed base foot mounted on the first mounting portion 62 and the telescopic base foot 2 mounted on the second mounting portion 63.

[0044] The above arrangement allows the base 6 and the movable support wheel assembly 3 to form a single module, facilitating disassembly for maintenance and replacement. Furthermore, the fixed feet mounted at the first mounting section 62 and the telescopic feet 2 mounted at the second mounting section 63 not only improve the installation strength at the feet but also enhance the overall connection strength between the base 6 and the base 1. This makes the movable support wheel assembly 3 more securely installed, thereby improving the overall stability of the equipment, especially under complex ground conditions or frequent movement, ensuring smooth equipment movement.

[0045] In one possible implementation, the fixed base 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 and passes through the connecting hole of the first mounting part 62 and the first pad 81, and is connected to the base 1. The first mounting part 62 can be a mounting hole on the straight plate structure 61, meaning the first connecting rod 52 passes through the mounting hole on the straight plate structure 61 and the connecting hole of the first pad 81, and is connected to the base 1. Furthermore, it is understood that the support pad 51 is used to contact a reference surface such as the ground.

[0046] The first connecting rod 52 can be a threaded rod. In this case, a fastening nut 53 can be fitted onto the threaded rod. The fastening nut 53 fastens the portion of the straight plate structure 61 at the first mounting part 62 and the first pad 81 to the base 1. The straight plate structure 61 at the first mounting part 62 can act as a washer, improving connection stability. However, this is not limiting; the fastening method can be adjusted. For example, the first connecting rod 52 can be a connecting rod with a snap-fit ​​structure. After the first connecting rod 52 is fixed to the base 1, the snap-fit ​​structure engages with the first mounting part 62, etc. These adjustments do not deviate from the principle of the present invention and are all within the protection scope of the present invention.

[0047] Since the first connecting rod 52 passes through the first pad 81 and the first mounting part 62 and connects to the base 1, the first pad 81 provides an additional support layer, enhancing the stability of the fixed foot and ensuring that the equipment remains stable under various ground conditions, preventing it from tilting or moving due to external forces or vibrations. The presence of the first pad 81 allows for fine-tuning of the fixed foot height by adjusting its thickness or material, thus adapting to different ground conditions. This enables the equipment to remain level even on uneven ground, avoiding tilting problems caused by uneven ground.

[0048] In one possible implementation, the second mounting part 63 and the first elevating structure 7 are fastened to the base 1 by a second connecting rod, and the telescopic foot 2 is mounted on the second mounting part 63 or the first elevating structure 7. The second mounting part 63 can be a plate-like structure connected to one side of the straight plate structure 61, the first elevating structure 7 can be a pad structure, and the second connecting rod can be a bolt, thereby fastening the first elevating structure 7 and the plate-like second mounting part 63 together to the threaded hole of the base 1 by bolts, and then fastening the telescopic foot 2 to the second mounting part 63 or the first elevating structure 7 by bolts or screws. The plate-shaped second mounting part 63 can be disposed between the base 1 and the first raised structure 7, or it can be pressed onto the first raised structure 7. When the plate-shaped second mounting part 63 is pressed onto the first raised structure 7, the telescopic foot 2 can be installed on the second mounting part 63. When the plate-shaped second mounting part 63 is disposed between the base 1 and the first raised structure 7, the telescopic foot 2 can be installed on the first raised structure 7. In this case, the plate-shaped second mounting part 63 can be bent relative to the straight plate structure 61. It should be noted that the above-mentioned installation method is not fixed. For example, it can be replaced by snap-fit, welding, etc. These adjustments do not deviate from the principle of the present invention and are all within the protection scope of the present invention. It should be noted that although the second mounting part 63 of the present invention is described using a plate-shaped structure as an example, this is not intended to limit the protection scope of the present invention. Its specific form can be adjusted, and such adjustments do not deviate from the principle of the present invention and are all within the protection scope of the present invention.

[0049] The above-described configuration significantly enhances the overall robustness of the base assembly. This multi-layered fastening design ensures a tight connection between the first elevation structure 7, the second mounting part 63, and the base 1, preventing loosening due to vibration or long-term use. It provides a stable foundation for the installation of the telescopic base 2, thereby improving the stability of the equipment.

[0050] In one possible implementation, the moving direction of the movable support wheel assembly 3 is aligned with the line connecting the fixed base and the telescopic base 2 on one side. This arrangement, with a fixed base at the front and a telescopic base 2 at the rear, ensures that the ground conditions in front remain consistent as the movable support wheel assembly 3 moves along the line connecting the fixed base and the telescopic base 2. This reduces the impact of changes in the ground conditions on the equipment's movement. The telescopic base 2 at the rear adjusts according to the actual road conditions, ensuring that the road conditions behind also become more consistent. This consistency in road conditions ensures stable operation of the equipment and reduces equipment swaying or tilting caused by changes in ground conditions.

[0051] As one possible implementation method, refer to Figure 5 and Figure 6The telescopic foot assembly includes a connecting structure 24 and at least two telescopic feet 2. Each telescopic foot 2 includes a foot base 21, an adjusting foot 22, and a telescopic cavity 23. The foot base 21 is mounted on the first elevation structure 7 or the second mounting part 63 and is fitted onto the adjusting foot 22. The adjusting foot 22 is movable along the height direction and has a receiving cavity 221. The telescopic cavity 23 is disposed in the receiving cavity 221 and configured to drive the adjusting foot 22 to move. The telescopic cavities 23 of the at least two telescopic feet 2 are connected by the connecting structure 24. The connecting structure 24 can be a pipe, or it can be an interconnected pipe and a liquid storage tank, etc. The telescopic cavity 23 can be a corrugated cavity made of flexible material, such as rubber, which can be fixed or contacted with the inner wall of the receiving cavity 221 and abut against the foot base 21. However, this is not a limitation; the telescopic cavity 23 can also be a rubber bladder, etc.

[0052] The telescopic cavity 23 can be filled with hydraulic medium. Under 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 causes each telescopic cavity 23 to adaptively adjust and extend, thereby driving the adjusting foot 22 to adaptively extend and extend relative to the base 21. After the hydraulic medium stops flowing, the telescopic base 2 can be automatically leveled.

[0053] The various telescopic cavities 23 are connected by a connecting structure 24. Each foot 21 has a liquid channel 211, and each telescopic cavity 23 has a liquid inlet. The liquid inlet of each telescopic foot 2 is connected to one end of the liquid channel 211, and the other end of the liquid channel 211 of each telescopic foot 2 is connected via the connecting structure 24. Alternatively, a mounting groove may be formed within the foot 21. The opening of the mounting groove has a first limiting ring protruding inwards, and the outer wall of the adjusting foot 22 has a second limiting ring located above the first limiting ring, so that the first limiting ring provides a limit and prevents the adjusting foot 22 from falling off.

[0054] It should be noted that although the telescopic foot 2 of this invention is described using a hydraulic foot as an example, this is not intended to limit the scope of protection of this invention. As long as the telescopic foot 2 has an automatic leveling function, it can be any existing or future structure. For example, the telescopic foot can be 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, and the motor is installed at a specific position on the bottom of the washing machine. Its stability is ensured by a fixed bracket. The output shaft of the motor is connected to the transmission assembly, which can be a gear set or a lead screw and nut mechanism. If it is a lead screw and 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. To achieve the automatic leveling function, a corresponding control circuit and sensors can be provided. Sensors can detect the horizontal state of the washing machine, such as gyroscopes, accelerometers, etc. These sensors transmit information such as the tilt angle of the washing machine to the control circuit. The control circuit determines whether the washing machine is in a horizontal state based on the sensor signals and controls the operation of the motor to adjust the length of the foot until the washing machine reaches a horizontal state.

[0055] The present invention will now describe the structure of the movable support wheel assembly 3 using two possible implementations as examples.

[0056] In a first possible implementation, the movable support wheel assembly 3 includes a guide member (not shown), a movable support (not shown), and a movable wheel assembly (not shown). The guide member is fixed to the straight plate structure 61 and has an inclined surface on one side close to the straight plate structure 61 and on the other side away from the straight plate structure 61. The movable support is movably mounted on the straight plate structure 61, and the movable wheel assembly is mounted on the movable support. The movable support is provided with a guide structure, which is configured to move away from the base 1 via the inclined surface when the movable support moves in a preset direction, so that the movable support wheel assembly 3 is in an unfolded state. The present invention does not limit the specific shape of the guide member; it can be a triangular pyramid, a wedge, etc. The guide structure can be a groove adapted to the inclined surface, or a rotating shaft on the movable wheel assembly, etc. It is understood that the preset direction is along the direction close to the inclined surface.

[0057] When the movable support wheel assembly 3 is in the retracted state, the movable support can be detachably installed on the base 6, such as by snap-fitting or by setting an abutment structure on the straight plate structure 61 to hold the movable support, etc. At this time, the base assembly is supported on the ground. When it is necessary to move the washing machine, the movable support moves towards the inclined surface of the guide member. Under the cooperation of the guide structure such as the inclined groove on the movable support and the inclined surface, the movable support falls down, the movable wheel assembly is supported on the ground, and thus the washing machine can be moved.

[0058] The movable support wheel set 3 can have two units, located on opposite sides of the base 1, such as opposite sides along the length of the extension edge 4. The movable support is arranged along the front-rear direction of the base 1. The movable wheel set includes a first wheel and a second wheel. Each movable support has a first wheel on its front side and a second wheel on its rear side. The two movable supports can be connected by a crossbeam, which can be connected to a cam transmission mechanism. The cam transmission mechanism has a handle, which drives the cam transmission mechanism to rotate, thereby driving the movable supports on both sides to reciprocate through the crossbeam. It should be noted that the above transmission method is only exemplary. As long as the movable supports can be driven to reciprocate, the arrangement can be adjusted. For example, the crossbeam or the movable supports on both sides can be driven by a linkage mechanism with a handle, a cam mechanism, a gear and rack mechanism, a crank mechanism, etc., or by using an electric push rod or a cylinder. These adjustments do not deviate from the principle of the present invention and are all within the protection scope of the present invention.

[0059] It should be noted that although this invention is described with two movable support wheel sets 3, this is not intended to limit the scope of protection of this invention. The arrangement can be adjusted. For example, it can be a single wheel set, located in the middle of the base 1, with two spaced-apart rollers at the front of the movable support and two spaced-apart rollers at the rear of the movable support; or the movable support wheel set 3 can be set to three, with the movable supports of the three movable support wheel sets 3 connected by a crossbeam for easy driving; or the crossbeam can be omitted to drive each movable support individually, etc. These adjustments do not deviate from the principle of this invention and are all within the scope of protection of this invention.

[0060] The second possible implementation method, see below. Figure 4 and Figure 7 The movable support wheel assembly 3 includes a connecting structure 32, rollers 33, a movable component 34, and a guide structure 35. One side of the connecting structure 32 is rotatably connected to the base 6, and the other side is rotatably connected to the rollers 33. The movable component 34 is movably mounted on the base 6, and the guide structure 35 is mounted on the movable component 34. When the movable component 34 moves in a preset direction, the guide structure 35 causes the connecting structure 32 to rotate away from the base 1, so that the movable support wheel assembly 3 is in an unfolded state. It is understood that the preset direction is the direction of movement towards the connecting structure 32. When the movable support wheel assembly 3 needs to be unfolded, the movable component 34 can be moved in the preset direction. When the movable component 34 moves in the preset direction, the guide structure 35 drives the connecting structure 32 to rotate relative to the base 6, causing the connecting structure 32 to move along its guide direction, i.e., away from the base 1, thereby allowing the rollers 33 to descend and move the washing machine.

[0061] Possibly, the base 6 may include a base plate and upright plates disposed on opposite sides of the base plate. The upright plates and the base plate together form a guide groove. The movable member 34 is configured as a movable plate, which is movably disposed in the guide groove along its length. The guide structure 35 on the movable plate may have a guide ramp with one end close to the movable plate and the other end away from the movable plate. The connecting structure 32 may be rod-shaped, with one end rotatably connected to the upright plate and the other end rotatably connected to the roller 33. However, this is not a limitation; the connecting structure 32 may also be plate-shaped, with one side rotatably connected to the upright plate and the other side rotatably connected to the roller 33. As the movable plate moves along the length of the guide groove, the roller 33 rolls from the end of the guide ramp close to the movable plate to the opposite end of the guide ramp until the connecting structure 32 finally abuts against the guide ramp, causing the roller 33 to fall and contact the ground.

[0062] If the connecting structure 32 is a rod-shaped connecting rod, it can be located on opposite sides of the roller 33. The connecting rods on both sides can be rotatably connected to the upright plates on both sides through a rotating shaft. The connecting rods on both sides are rotatably connected to the shaft of the roller 33 on the other side of the rotating shaft to improve stability.

[0063] Possibly, the movable support wheel assembly 3 also includes an elastic element 37, which is used to move the connecting structure 32 towards the base 1 under the action of an elastic force. The elastic element 37 can be a torsion spring, which is sleeved on a rotating shaft that allows relative rotation between the connecting structure 32 and the base 6. The first end of the torsion spring can be connected to the base 6, such as the aforementioned upright plate or bottom plate, and the other end of the torsion spring can be connected to the connecting structure 32 so that the connecting structure 32 can be in a retracted state (such as the connecting structure 32 being in contact with the bottom plate or leaving a gap), and in the unfolded state, it can provide an elastic force to the connecting structure 32 to rotate towards the base 1, so that when the movable plate moves in a direction opposite to the preset direction, the connecting structure 32 can move towards the base 1 until it returns to the initial retracted state. It should be noted that the structure of the elastic element 37 is not fixed. As long as the connecting structure 32 can be moved closer to the base 1 under the action of elastic force, its specific form can be adjusted. For example, the elastic element 37 is a telescopic spring, one end of which is connected to the base plate and the other end of which is connected to the connecting structure 32. These adjustments do not deviate from the principle of the present invention and are all within the protection scope of the present invention.

[0064] It should be noted that the elastic element 37 can also be omitted in this invention. For example, a first magnetic element can be provided on the base plate or the moving element 34. Under the attraction of the first magnetic element and the second magnetic element, the connecting structure 32 and the roller 33 can be retracted. In the unfolded state, the attraction of the first magnetic element and the second magnetic element can be reduced so that the connecting structure 32 and the roller 33 can be unfolded, etc. As long as the moving bracket wheel set 3 can be in a retracted state, these adjustments do not deviate from the principle of this invention and are all within the protection scope of this invention.

[0065] There can be two movable support wheel sets 3, which are located on opposite sides of the base 1, such as opposite sides of the length of the extension edge 4. The movable support wheel sets 3 can be arranged along the front and rear direction of the base 1. The aforementioned connecting structure 32 and roller 33 can be rotatably connected to the front and rear sides of the base 6 of each movable support wheel set 3.

[0066] The movable component 34 of the movable support wheel assembly 3 can be connected via a crossbeam, which is driven by a cam-linkage mechanism. The cam-linkage mechanism has a handle 36 for manually raising and lowering the movable support wheel assembly 3. However, this is not a limitation; the crossbeam can be omitted, and the movable support wheel assemblies 3 on both sides can be driven independently via handles and transmission components. The transmission components can be linkage mechanisms, cam mechanisms, rack and pinion mechanisms, crank mechanisms, etc., and the handles can extend beyond the extension edge. Furthermore, the driving method is not fixed; it can be replaced with an electric push rod or a cylinder, etc. These adjustments do not deviate from the principles of this invention and are all within the scope of protection of this invention.

[0067] It should be noted that although this invention is described with two movable support wheel sets 3, this is not intended to limit the scope of protection of this invention. The arrangement can be adjusted; for example, three movable support wheel sets 3 can be used. The movement of the three movable support wheel sets 3 is connected by a crossbeam for easy driving. These adjustments do not deviate from the principles of this invention and are all within the scope of protection of this invention. Furthermore, the movable component 34 and the base 6 can be movably arranged via a slide rail, or they can be fitted together. For example, when fitted together, if the movable component 34 is a movable plate, it can pass between the rotating shaft and the base plate that can rotate relative to each other between the connecting structure 32 and the base 6 to provide limiting. These adjustments do not deviate from the principles of this invention and are all within the scope of protection of this invention.

[0068] Furthermore, it should be noted that although the movable support wheel assembly 3 of the present invention is described using the above two possible embodiments as examples, this is not intended to limit the scope of protection of the present invention. Its specific form can be adjusted. The movable support wheel assembly 3 can be any existing or future structure, 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 drive the household appliance to move in the extended state. Any adjustment of its specific form does not deviate from the principle of the present invention and is within the scope of protection of the present invention.

[0069] It should be noted that although the guide structure 35 of the present invention is described using a guide ramp as an example, this is not intended to limit the scope of protection of the present invention. For example, the guide structure 35 can be an arc-shaped guide, a roller-type guide, or other structures with guiding functions, as long as it can guide the connecting structure 32 to move in a preset direction when the moving member 34 moves, so that the roller 33 can unfold or retract. The specific form can be adjusted according to actual needs without departing from the basic principle of the present invention, and all such adjustments are within the scope of protection of the present invention.

[0070] As an alternative implementation, although the present invention is described with the first foot 5 located on one side of the extension edge 4 and the telescopic foot 2 located on the opposite side of the extension edge 4 as an example, this is not intended to limit the scope of protection of the present invention. For example, the telescopic foot 2 may be located on one side of the extension edge 4 and the first foot 5 may be located on the opposite side of the extension edge 4. These adjustments do not deviate from the principle of the present invention and are all within the scope of protection of the present invention.

[0071] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A base mechanism for a household appliance, characterized in that, The bottom of the household appliance has a protruding extension edge, and the base mechanism includes: The first base foot is located at the bottom of the household appliance and protrudes beyond the extended side; A telescopic foot assembly, wherein the telescopic foot assembly has telescopic feet disposed at the bottom of the household appliance for automatically leveling the household appliance; A first elevation structure is used to elevate the telescopic foot so that the telescopic foot can protrude from the extension edge in the retracted state. The telescopic feet and the first foot are located on the bottom of the household appliance on one side and the opposite side of the extended edge, respectively.

2. The base mechanism of the household appliance according to claim 1, characterized in that, The base mechanism also includes: The second elevation structure is located at the bottom of the household appliance; The base includes a straight plate structure, which is pressed onto the end of the second raised structure and the extended edge; A movable support wheel assembly is mounted on the straight plate structure and is configured to have a retracted state and an extended state. In the retracted state, the first base and the telescopic base support the household appliance, and in the extended state, the household appliance can be moved.

3. The base mechanism of the household appliance according to claim 1 or 2, characterized in that, The first foot is configured as a fixed foot, which is located on the bottom of the household appliance on one side of the extended side, and the telescopic foot is located on the bottom of the household appliance on the opposite side of the extended side.

4. The base mechanism of the household appliance according to claim 2, characterized in that, The base also includes a first mounting part and a second mounting part disposed on the straight plate structure, the first foot being disposed on the first mounting part, and the telescopic foot being disposed on the second mounting part.

5. The base mechanism of the household appliance according to claim 4, characterized in that, The first foot is located on one side of the extended side of the bottom of the household appliance, and the telescopic foot is located on the opposite side of the extended side of the bottom of the household appliance. The first foot includes a support pad and a first connecting rod. The first connecting rod is connected to one side of the support pad and passes through the first mounting part and the second shim structure and is connected to the bottom of the household appliance.

6. The base mechanism of the household appliance according to claim 5, characterized in that, The second shim structure includes a first shim and a second shim. The first side of the straight plate structure is pressed onto the first shim, and the second side of the straight plate structure opposite to the first side is pressed onto the second shim. The first shim is provided with a connecting hole for the first connecting rod to pass through.

7. The base mechanism of the household appliance according to claim 4, characterized in that, The second mounting part and the first raising structure are fixed to the bottom of the household appliance via a second connecting rod, and the telescopic feet are mounted on the second mounting part or the first raising structure; and / or The moving direction of the movable support wheel assembly is consistent with the direction of the line connecting the first base foot and the telescopic base foot on one side.

8. The base mechanism of the household appliance according to claim 1, characterized in that, The telescopic foot assembly further includes a connecting structure. The telescopic foot includes a foot base, an adjusting foot, and a telescopic cavity. The foot base is installed on the bottom of the household appliance and sleeved on the adjusting foot. The adjusting foot is movable along the height direction and has a receiving cavity. The telescopic cavity is disposed in the receiving cavity and is configured to drive the adjusting foot to move. The telescopic cavities of at least two telescopic feet are connected through the connecting structure.

9. The base mechanism of the household appliance according to claim 2, characterized in that, The movable support wheel assembly includes a guide member, a movable support, and a movable wheel assembly. The guide member is fixed to the straight plate structure and has an inclined surface on one side close to the straight plate structure and on the other side away from the straight plate structure. The movable support is movably mounted on the straight plate structure. The movable wheel assembly is mounted on the movable support. The movable support is provided with a guide structure, which is configured to move away from the bottom of the household appliance via the inclined surface when the movable support moves in a preset direction, so that the movable support wheel assembly is in the unfolded state. or The movable support wheel assembly includes a connecting structure, rollers, a movable component, and a guide 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 rollers. The movable component is movably disposed on the base, and the guide structure is disposed on the movable component. When the movable component moves in a preset direction, the guide structure enables the connecting structure to rotate away from the bottom of the household appliance, so that the movable support wheel assembly is in the unfolded state.

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

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