Moving mechanism for a household appliance and household appliance system

Abstract

The application relates to a household appliance system, and particularly provides a moving mechanism for a household appliance and a household appliance system, aiming to solve the problem that a roller assembly is difficult to be retracted due to side deviation in the prior art. For this purpose, the moving mechanism for the household appliance comprises a roller assembly, a moving mechanism main body and an anti-deviation piece. The roller assembly is rotatably arranged on the moving mechanism main body through a connecting shaft. The moving mechanism main body is arranged to enable the roller assembly to be switched between an unfolded position and a retracted position. The anti-deviation piece is arranged on the connecting shaft and connected with the moving mechanism main body, and is used for limiting the axial displacement of the roller assembly on the connecting shaft. The above arrangement enables the roller assembly to be smoothly rotated along a preset path without any obstruction when the roller assembly needs to be retracted, and the roller assembly can accurately and reliably reach and stably stay at the retracted position.

Description

Technical Field

[0001] This application relates to household appliance systems, specifically providing a moving mechanism for household appliances and a household appliance system. Background Technology

[0002] Some household appliances (such as refrigerators, washing machines, dryers, and ovens) have a moving mechanism installed at their bottom for easy movement. This mechanism is typically designed to be switchable: when the appliance needs to be moved, operating the mechanism unfolds the roller assembly, which then places the rollers on the ground, supporting the entire appliance, allowing the user to easily push it to adjust its position; once the appliance is in its desired location, operating the mechanism retracts the roller assembly, causing the fixed support feet at the bottom of the appliance to contact the ground, providing support and ensuring the appliance is placed stably.

[0003] However, in actual use, it has been found that because household appliances are usually quite heavy, the roller assembly is prone to significant lateral forces when moved (especially when turning or pushing on uneven ground). This force can cause the roller assembly to shift or tilt relative to the main body of the moving mechanism (lateral deviation). Once lateral deviation occurs, the roller assembly may not be able to accurately and smoothly return to the intended position during the retraction process, or it may get stuck halfway. This not only affects the user experience (making operation difficult or even resulting in failure), but more seriously, it can cause the household appliance to be unable to be stably supported by its feet, posing a risk of wobbling or even tipping over, affecting safety and stability during use.

[0004] Accordingly, there is a need in the art for a new moving mechanism and system for household appliances to solve the above problems. Utility Model Content

[0005] This application aims to solve the aforementioned technical problem, namely, the problem that the roller assembly in the existing moving mechanism of household appliances is difficult to retract due to lateral deviation.

[0006] In a first aspect, this application provides a moving mechanism for a household appliance, comprising: a roller assembly; a moving mechanism body, wherein the roller assembly is rotatably mounted on the moving mechanism body via a connecting shaft, the moving mechanism body being configured to allow the roller assembly to switch between an extended position and a retracted position; and an anti-displacement member disposed on the connecting shaft and connected to the moving mechanism body, for limiting the axial displacement of the roller assembly on the connecting shaft.

[0007] In the above-mentioned optional technical solution for the moving mechanism of household appliances, the anti-deviation component includes a first spring and a second spring. The first spring and the second spring are both sleeved on the connecting shaft. The first end of the first spring is connected to the first end of the second spring. The second end of the first spring has a first extension arm, and the second end of the second spring has a second extension arm. The first extension arm and the second extension arm are located on the same side of the connecting shaft and both abut against the main body of the moving mechanism.

[0008] In the above-mentioned optional technical solution for the moving mechanism of household appliances, the first end of the first spring and the first end of the second spring are connected by a bending portion, the bending portion being located on the opposite side of the connecting shaft on the first extension arm and the second extension arm, and abutting against the main body of the moving mechanism.

[0009] In the above-mentioned optional technical solutions for the moving mechanism of household appliances, the end of the first extension arm has a first folded edge; and / or the end of the second extension arm has a second folded edge.

[0010] In the above-mentioned optional technical solutions for the moving mechanism of household appliances, the anti-deviation component is symmetrically arranged; and / or the roller assembly includes a roller, a first connecting arm and a second connecting arm, the first connecting arm and the second connecting arm are spaced apart and are both connected to the shaft of the roller, the ends of the first connecting arm and the second connecting arm away from the roller are both connected to the connecting shaft, and the anti-deviation component is located between the first connecting arm and the second connecting arm.

[0011] In the above-mentioned optional technical solution for the moving mechanism of household appliances, the main body of the moving mechanism includes a base body and a moving bracket. The connecting shaft is disposed on the base body, and the moving bracket is disposed between the connecting shaft and the base body. It is movable along a first direction and a second direction opposite to the first direction. The anti-deviation member abuts against the moving bracket. The moving bracket is provided with a pushing structure. The pushing structure is used to push the roller assembly to unfold and abut against the roller assembly when the moving bracket moves along the first direction.

[0012] In the above-mentioned optional technical solution for the moving mechanism of a household appliance, the bottom of the front plate of the household appliance has a first extending edge extending downward, and the bottom plate of the household appliance has a second extending edge extending downward. The first extending edge and the second extending edge are connected by a connector. The base body is provided with a first mounting plate, and the top of the first mounting plate is provided with a groove for accommodating the first extending edge and the second extending edge. The first mounting plate has a notch, and the connector is located in the notch.

[0013] In the above-mentioned optional technical solution for the moving mechanism of a household appliance, the first mounting plate includes a first part and a second part, the groove is formed in the first part, the second part is disposed in the first part and located on the rear side of the groove, the first part and the second part surround to form the notch, wherein the rear side coincides with the rear side of the household appliance.

[0014] In the above-mentioned optional technical solution for the moving mechanism of household appliances, the first mounting plate has a protrusion protruding to the bottom, so that the top of the first mounting plate forms the groove corresponding to the position of the protrusion. The moving mechanism also includes a handle, and the moving bracket has a bent section that extends beyond the protrusion and is connected to the handle, so that the handle can selectively drive the moving bracket to move along the first direction or the second direction; and / or the base body has a second mounting plate on the side opposite to the first mounting plate, and both the first mounting plate and the second mounting plate are used to mount the feet of the household appliance.

[0015] On the other hand, this application also provides a household appliance system including the moving mechanism described in any of the above embodiments, wherein the main body of the moving mechanism is disposed at the bottom of the household appliance.

[0016] Those skilled in the art will understand that the moving mechanism of the household appliance of this application includes a roller assembly, a moving mechanism body and an anti-deviation component. The roller assembly is rotatably mounted on the moving mechanism body via a connecting shaft. The moving mechanism body is configured to allow the roller assembly to switch between an extended position and a retracted position. The anti-deviation component is located on the connecting shaft and connected to the moving mechanism body, and is used to limit the axial displacement of the roller assembly on the connecting shaft.

[0017] The anti-deviation component of this application is directly mounted on the connecting shaft and connected to the main body of the moving mechanism, restricting the axial displacement of the connecting shaft. By physically constraining the axial degree of freedom of the connecting shaft, it ensures that the roller assembly maintains the correct attitude and relative position even when subjected to lateral forces, fundamentally eliminating lateral deviation. Therefore, when the roller assembly needs to be retracted, it can always rotate smoothly and unimpeded along the preset path, accurately and reliably reaching and stabilizing in the retracted position, thereby achieving a smooth switch with the base and ensuring the stable placement of household appliances. Attached Figure Description

[0018] The preferred embodiments of this application are described below with reference to the accompanying drawings, in which:

[0019] Figure 1 This is a schematic diagram of the moving mechanism of this application;

[0020] Figure 2 yes Figure 1Enlarged view of point C in the middle;

[0021] Figure 3 yes Figure 1 A cross-sectional view at position AA (C).

[0022] Figure 4 This is a schematic diagram of the household appliance system of this application;

[0023] Figure 5 yes Figure 4 Enlarged view of point A in the middle;

[0024] Figure 6 This is a bottom view of the movable mechanism of this application after it has been installed on a household appliance;

[0025] Figure 7 yes Figure 6 Enlarged view of point B in the middle.

[0026] Explanation of reference numerals in the attached figures:

[0027] 110 - Base body; 111 - Opening; 120 - First mounting plate; 121 - Groove; 122 - Protrusion; 123 - First part; 124 - Second part; 125 - Notch; 130 - Second mounting plate; 200 - Roller assembly; 210 - Roller; 220 - First connecting arm; 230 - Second connecting arm; 300 - Connecting shaft; 500 - Moving bracket; 510 - Bending section; 511 - Guide hole; 520 - Pushing section; 610 - First upright plate; 620 - Second upright plate; 621-Push structure; 6211-Slanted groove; 700-Handle; 710-Rotating shaft; 800-Anti-deviation component; 810-First spring; 811-First extension arm; 8111-First folded edge; 820-Second spring; 821-Second extension arm; 8211-Second folded edge; 830-Bending part; 900-Household appliance; 910-First extension edge; 920-Second extension edge; 930-Connector; 940-First foot; 950-Second foot. Detailed Implementation

[0028] Preferred embodiments of this application are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of this application and are not intended to limit the scope of protection of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0029] It should be noted that, in the description of this application, the terms "upper," "lower," "top," and "bottom" refer to the upper and lower parts, top and bottom, of the household appliance 900 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 900 in its use state, and "rear" refers to the direction near its back panel, based on the horizontal direction of the household appliance 900 in its use state. The width direction is the direction from one side panel to the other of the household appliance 900. Furthermore, it should be noted that, in the description of this application, 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 application according to the specific circumstances.

[0030] To address the problem of roller assemblies in existing household appliance moving mechanisms being difficult to retract due to lateral deviation. For example... Figures 1 to 3 As shown, this application provides a moving mechanism for a household appliance 900. The moving mechanism includes a roller assembly 200, a moving mechanism body, and an anti-deviation member 800. The roller assembly 200 is rotatably mounted on the moving mechanism body via a connecting shaft 300. The moving mechanism body is configured to allow the roller assembly 200 to switch between an extended position and a retracted position. The anti-deviation member 800 is disposed on the connecting shaft 300 and connected to the moving mechanism body, and is used to limit the axial displacement of the roller assembly 200 on the connecting shaft 300.

[0031] The anti-deviation component 800 of this application is directly mounted on the connecting shaft 300 and connected to the main body of the moving mechanism, restricting the axial displacement of the connecting shaft 300. By physically constraining the axial degree of freedom of the connecting shaft 300, it is ensured that the roller assembly 200 maintains the correct posture and relative position even when subjected to lateral forces, fundamentally eliminating the occurrence of lateral deviation. Therefore, when it is necessary to retract the roller assembly 200, the roller assembly 200 can always rotate smoothly and unimpeded along the preset path, and accurately and reliably reach and stabilize in the retracted position, thereby achieving a smooth switch with the base and ensuring the stable placement of the household appliance 900.

[0032] Among them, the household appliance 900 in this application can be a washing machine, washer-dryer combo, dryer or shoe washing machine and other clothing processing equipment, or a refrigerator, etc. This application does not limit the specific form of the household appliance.

[0033] In one possible implementation, the anti-deviation component 800 includes a first spring 810 and a second spring 820. Both the first spring 810 and the second spring 820 are sleeved on the connecting shaft 300. The first end of the first spring 810 is connected to the first end of the second spring 820. The second end of the first spring 810 has a first extension arm 811, and the second end of the second spring 820 has a second extension arm 821. The first extension arm 811 and the second extension arm 821 are located on the same side of the connecting shaft 300 and both abut against the main body of the moving mechanism.

[0034] Since the first extension arm 811 of the first spring 810 and the second extension arm 821 of the second spring 820 are located on the same side of the connecting shaft 300 and both abut against the main body of the moving mechanism, the axial force can be evenly distributed on the connecting shaft 300, effectively suppressing the skewness of the roller assembly 200 caused by unilateral force. At the same time, the elastic restoring characteristic of the spring itself can drive the roller assembly 200 to automatically return to the correct position after the displacement occurs, ensuring its accurate return to the correct position.

[0035] In one possible implementation, the first end of the first spring 810 and the first end of the second spring 820 are connected by a bending portion 830. The bending portion 830 is located on the opposite side of the connecting shaft 300 to the first extension arm 811 and the second extension arm 821, and abuts against the main body of the moving mechanism. The bending portion 830 can be a U-shaped structure, a W-shaped structure, etc., and this application does not limit its specific form.

[0036] The above arrangement enables the anti-offset component 800 to form a three-point support structure (two side extension arms and the middle bend 830) around the connecting shaft 300. This symmetrical layout can more evenly distribute the axial load and effectively suppress the lateral offset of the roller assembly 200.

[0037] In one possible implementation, the roller assembly 200 includes a roller 210, a first connecting arm 220, and a second connecting arm 230. The first connecting arm 220 and the second connecting arm 230 are spaced apart and both are connected to the shaft of the roller 210. The ends of the first connecting arm 220 and the second connecting arm 230 away from the roller 210 are both connected to a connecting shaft 300. An anti-deviation member 800 is located between the first connecting arm 220 and the second connecting arm 230. The first connecting arm 220 and the second connecting arm 230 can be fixedly connected to the connecting shaft 300, and the connecting shaft 300 can be rotatably connected to the main body of the moving mechanism. Alternatively, the first connecting arm 220 and the second connecting arm 230 can be rotatably connected to the connecting shaft 300, and the connecting shaft 300 can be fixedly connected to the main body of the moving mechanism. These possible adjustments do not depart from the principles of this application and are all within the protection scope of this application.

[0038] The design of the first connecting arm 220 and the second connecting arm 230 being spaced apart on the shaft of the roller 210 and both connected to the connecting shaft 300 can evenly distribute the lateral load of the roller 210. The anti-deviation component 800 located in the middle of the first connecting arm 220 and the second connecting arm 230 converts the axial component force into a symmetrical elastic reaction force, effectively suppressing the deviation caused by unilateral force.

[0039] It should be noted that the specific implementation of the roller assembly 200 is not fixed. As long as the roller assembly 200 is rotatably mounted on the main body of the moving mechanism via the connecting shaft 300, its specific implementation can be adjusted. For example, the first connecting arm 220 or the second connecting arm 230 can be omitted, such that the two ends of the first connecting arm 220 are respectively connected to the shaft of the roller 210 and the connecting shaft 300.

[0040] As one possible implementation, the anti-offset component 800 is symmetrically arranged. Furthermore, the anti-offset component 800 and the connecting shaft 300 are symmetrically distributed as a whole. This allows for automatic correction of minor offsets through symmetrical limiting forces; it also utilizes the symmetrical synchronous deformation characteristics to achieve bidirectional buffering, reducing the risk of fatigue damage to components.

[0041] Possibly, the main body of the moving mechanism of this application includes a base, the base including a base body 110, the base body 110 being configured as a guide groove (the guiding direction of the guide groove is consistent with the length direction of the base body 110), the connecting shafts 300 being connected to the side walls of the guide groove, the moving bracket 500 being movably disposed in the guide groove, the moving bracket 500 including a pushing section 520, the pushing section 520 being located between the connecting shafts 300 and the base body 110, the pushing section 520 having a first upright plate 610 and a second upright plate 620 on both sides in the width direction, so that the pushing section 520, the first upright plate 610 and the second upright plate 620 surround to form a moving groove, wherein the moving groove and the guide groove are in contact with each other, that is, the pushing section 520 is in contact with the bottom of the guide groove, and the first upright plate 610 and the second upright plate 620 are in contact with the side walls of the guide groove respectively, so as to achieve stable movement of the moving bracket 500 and avoid shaking. The first vertical plate 610 and the second vertical plate 620 of the movable groove are each provided with a first strip-shaped hole arranged along the moving direction. The two ends of the connecting shaft 300 pass through the first strip-shaped holes on both sides and are connected to the side wall of the guide groove to ensure the smooth movement of the movable bracket 500. The pushing structure 621 of this application is provided on the movable bracket 500. The pushing structure 621 is used to push the roller assembly 200 down and abut against the roller assembly 200 when the roller assembly 200 is down, so that the roller assembly 200 supports the household appliance 900 and facilitates the movement of the household appliance 900 by rotating the roller 210.

[0042] It is understood that the guide groove should include a plate body and a third and fourth upright plate disposed on both sides of the plate body in the width direction. The third and fourth upright plates and the plate body surround and form the aforementioned guide groove. The guide groove is preferably a U-shaped groove, but it can also be replaced by a guide groove with one end blocked and the other end open in the length direction, etc. These possible adjustments do not deviate from the principle of this application and are all within the protection scope of this application.

[0043] In this application, the anti-deviation component 800 abuts against the movable bracket 500. Specifically, the first extension arm 811, the second extension arm 821, and the bent portion 830 of the anti-deviation component 800 abut against the movable bracket 500, specifically against the pushing section 520. Possibly, the end of the first extension arm 811 has a first folded edge 8111, and / or the end of the second extension arm 821 has a second folded edge 8211, thereby reducing wear on the movable bracket 500. The first folded edge 8111 can be bent towards the second extension arm 821, and the second folded edge 8211 can be bent towards the first extension arm 811.

[0044] Possibly, such as Figures 4 to 7 As shown, the bottom of the household appliance 900 of this application has a protruding first extension edge 910. The first extension edge 910 can be located on the side near the door of the household appliance 900, that is, the front side of the household appliance 900, and the first extension edge 910 is set along the width direction of the household appliance 900. The first extension edge 910 can be an extension edge extending downward from the bottom of the front panel of the household appliance 900, etc. The bottom plate has a downwardly extending second extension edge 920. The first extension edge 910 and the second extension edge are connected by a connector 930, which can be a bolt or a buckle, etc., thereby enhancing the structural strength of the household appliance 900 and improving the overall stability. The first extension edge 910 and the second extension edge 920 can also provide protection for the components at the bottom of the household appliance 900, so as to effectively prevent damage or scratches to the bottom structure of the household appliance 900 by external objects, and can also be used as a decorative panel, etc.

[0045] Possibly, refer to Figure 1 and Figure 5 The base also includes a first mounting plate 120, which is located at the first end of the base body 110 along its length. The first mounting plate 120 and the base body 110 are preferably integrally formed. The first mounting plate 120 has a protrusion 122 extending downwards, such that the top of the first mounting plate 120 forms a groove 121 corresponding to the position of the protrusion 122. The groove 121 extends through both ends in the width direction of the household appliance 900, accommodating the first extending edge 910 and the second extending edge 920 described above, ensuring that the base is horizontally installed at the bottom of the household appliance 900 and preventing obstruction of movement due to tilting or instability of the moving mechanism. Furthermore, referring to… Figure 1 and Figure 7 The first mounting plate 120 has a notch 125, and the connector 930 is located in the notch 125.

[0046] Since the connector 930 is located in the notch 125, when disassembly and maintenance are required, the operator does not need to disassemble or move the entire moving mechanism. He only needs to contact and disassemble the connector 930 directly at the notch 125 position to lift the front plate upwards. This avoids the cumbersome disassembly problem caused by the moving mechanism blocking the way, and especially avoids interference with double torsion springs, etc.

[0047] In one possible implementation, the first mounting plate 120 includes a first portion 123 and a second portion 124. A groove 121 is formed in the first portion 123, and the second portion 124 is disposed in the first portion 123 and located behind the groove 121. The first portion 123 and the second portion 124 enclose a notch 125, wherein the rear side coincides with the rear side of the household appliance 900. This arrangement allows the first portion 123 and the second portion 124 to form an L-shaped notch 125. The open right-angle structure of the L-shaped notch 125 provides multi-angle operating space for tools such as screwdrivers, allowing operators to insert tools horizontally or vertically. This is particularly suitable for disassembling connectors 930 in confined repair environments, reducing the number of tool turning operations and improving disassembly convenience.

[0048] In addition, the moving mechanism of this application also includes a handle 700, which may be fitted with a plastic grip portion. The grip portion may be designed with a wave shape for easy gripping by the user. The moving bracket 500 also has a bending section 510, which extends beyond the protrusion 122 and is connected to the handle 700, so that the handle 700 can selectively drive the moving bracket 500 to move in a first direction or a second direction opposite to the first direction, thereby driving the moving bracket 500 to reciprocate. Specifically, the bending section includes a first extension section and a second extension section. The first extension section bends away from the pushing section 520 in a direction away from the base, and the second extension section bends from the first extension section toward the protrusion 122 and extends beyond the protrusion 122. The handle 700 is connected to the portion of the second extension section that extends beyond the protrusion 122, so as to facilitate the fit between the moving bracket 500 and the base body 110 and ensure horizontal installation.

[0049] Possibly, refer to Figure 7The handle 700 is hinged to the first mounting plate 120. One of the handle 700 and the movable bracket 500 has a rotating shaft 710, and the other has a guide hole 511 (which can be an elongated hole). The rotating shaft 710 is rotatably disposed in the guide hole 511 and is movable within it. Specifically, the handle 700 has a first connecting portion and a second connecting portion arranged in a cross configuration. The first connecting portion is hinged to the first mounting plate 120 (e.g., the first mounting plate 120 is on the front side of the protrusion 122). The second connecting portion is fixedly connected to the rotating shaft 710. The bent section 510 has a guide hole 511, and the rotating shaft 710 is rotatably disposed in the guide hole 511 and is movable within it. A limiting block may be provided at the end of the rotating shaft 710 to prevent it from dislodging from the guide hole 511.

[0050] It should be noted that the above configuration is not restrictive. As long as the handle 700 can selectively move the movable support 500 along the first direction or in the opposite direction, its specific configuration can be adjusted. For example, the handle 700 can be hinged to the base body 110 and connected to the movable support 500 via a transmission assembly. This transmission assembly could include a first link and a second link, with one end of the first link hinged to the movable support 500, the other end of the first link hinged to one end of the second link, and the other end of the second link hinged to the handle 700. These possible adjustments do not deviate from the principles of this application and are all within the scope of protection of this application.

[0051] The working principle of the moving mechanism of this application is described below. When the roller 210 needs to be lowered to move the household appliance 900, the handle 700 is rotated at a certain angle, so that the moving groove moves smoothly in the first direction (such as forward) under the guidance of the guide groove. The pushing structure 621 starts to push the roller assembly 200, so that the first connecting arm 220 and the second connecting arm 230 of the roller assembly 200 rotate away from the base body 110. The roller 210 lowers and contacts the ground. The pushing structure 621 abuts against the roller assembly 200. The roller assembly 200 supports the household appliance 900, so that the household appliance 900 can be moved by the roller 210 in the roller assembly 200. When the roller assembly 200 needs to be raised and retracted, the handle 700 is rotated in the opposite direction by a certain angle. The moving groove moves smoothly in the second direction opposite to the first direction (such as moving backward) under the guidance of the guide groove, and the pushing structure 621 moves away from the roller assembly 200, so that the roller assembly 200 can be raised and retracted. At this time, the foot assembly of the household appliance 900 is in contact with the ground.

[0052] This application does not limit the specific form of the actuating structure 621. Two possible implementation methods are described below.

[0053] In a first possible implementation, the pushing structure is a wedge-shaped block with an inclined surface facing the roller assembly 200. One end of the inclined surface is connected to the movable support 500, so that when the movable support 500 moves in a first direction, the inclined surface can extend into the gap between the roller assembly 200 and the movable support 500, thereby guiding the roller assembly 200 to rotate away from the movable support 500. When the movable support 500 moves in the opposite direction, the wedge-shaped block moves away from the roller assembly 200, allowing the roller assembly 200 to retract.

[0054] The second possible implementation method, see below. Figure 2 and Figure 3 The pushing structure 621 is configured as an inclined groove 6211 on the first vertical plate 610 and the second vertical plate 620. The opposite side walls of the guide groove each have vertically arranged openings 111. The two ends of the roller 210's shaft are respectively located in the inclined grooves 6211 on both sides and in the openings 111 on both sides of the guide groove. In this configuration, the roller 210 can be located outside the guide groove, and the first connecting arm 220 and the second connecting arm 230 can be located inside the moving groove. This configuration allows the roller assembly 200 to gradually descend and unfold under the influence of the inclined walls of the inclined groove 6211 when the moving support 500 moves in the first direction, until the roller 210 contacts the ground. When the moving support 500 moves in the opposite direction, the inclined walls of the inclined groove 6211 move away from the roller assembly 200, allowing the roller assembly 200 to retract. The purpose of setting the opening 111 is not only to avoid obstacles, but also to provide a precise movement path for the axis of the roller 210, effectively avoiding offset and misalignment caused by rotational loosening, thereby ensuring the smoothness and stability of the roller assembly 200's unfolding and retracting actions.

[0055] It is understandable that the side wall of the guide groove has a vertically oriented opening 111, that is, the opening 111 extends from the side of the guide groove near its bottom to the side of the guide groove away from its bottom. In other words, after the moving mechanism is installed at the bottom of the household appliance 900 and the household appliance 900 is in its normal placement state, the opening 111 is vertically oriented.

[0056] In one possible implementation, the first mounting plate 120 has a first mounting hole for mounting a first foot 940 of the household appliance 900. The first foot 940 can be a front foot. The first mounting hole can be located on a second portion 124 of the first mounting plate 120, between the protrusion 122 and the guide groove. This allows the first foot 940 to be located within the first extending edge 910 and the second extending edge 920, effectively protecting the first foot 940 from damage caused by impacts.

[0057] As one possible implementation, the base body 110 has a second mounting plate 130 on the side opposite to the first mounting plate 120, and the second mounting plate 130 can be integrally formed with the base body 110. The second mounting plate 130 is used to mount the second foot 950 of the household appliance 900, and the second foot 950 can be the foot at the rear of the household appliance 900.

[0058] Possibly, both the second foot 950 and the first foot 940 are fixed feet, facilitating upgrades to existing household appliances 900. It is understood that a fixed foot refers to a foot that cannot be extended or retracted. Specifically, the fixed foot includes a support pad and a threaded rod. One end of the threaded rod is connected to one side of the support pad, and the other end passes through the corresponding mounting plate and connects to the bottom of the household appliance 900. The support pad is used to contact a reference surface such as the ground. A fastening nut can be fitted onto the threaded rod. Alternatively, the threaded rod can be replaced with a rod without threads, the end of which can be fitted with a buckle. The bottom of the household appliance 900 has a slot, and a secure connection is achieved by the buckle engaging with the slot.

[0059] Alternatively, the second foot 950 and / or the first foot 940 are telescopic feet, used to automatically level the appliance 900. When the user needs to move the appliance 900, the moving mechanism can be lowered to move the appliance 900. After stopping, the moving mechanism can be raised and retracted, and the telescopic feet will perform a leveling operation after contacting the ground, ensuring that the device immediately returns to a stable state without any additional operation. This allows the appliance 900 to seamlessly switch between moving and foot-supported states.

[0060] As one possible implementation, the second mounting plate 130 is provided with a second strip hole, which is arranged along the moving direction of the moving groove, and the second base 950 is provided with a threaded post, which passes through the second strip hole and is screwed into the base plate of the household appliance 900.

[0061] With the moving mechanism positioned along the front-to-back direction of the household appliance 900, the aforementioned configuration allows the position of the second foot 950 to be adjusted relative to the household appliance 900, enabling adjustments to the foot position of household appliances 900 at different depths. This is applicable to different models of household appliances 900 and facilitates the modification and upgrading of existing household appliances 900. Specifically, the base plate of the household appliance 900 can have pre-drilled fixing holes corresponding to the positions of the strip-shaped holes, facilitating the installation of threaded posts on the second foot 950.

[0062] This application includes multiple moving mechanisms; two are used as an example. The two moving mechanisms are located on opposite sides of the base plate of the household appliance 900, and can both be arranged along the front-to-back direction of the household appliance 900. Each moving mechanism can have multiple roller assemblies 200; two are used as an example. The two roller assemblies 200 are spaced apart and rotatably connected to the base body via a first connecting arm and a second connecting arm. The moving bracket has a pushing structure 621 at the position corresponding to each roller assembly 200. Furthermore, anti-deviation members 800 are fitted onto the connecting shafts 300 corresponding to the two roller assemblies 200, and the extension arms of the two anti-deviation members 800 (the first extension arm 811 and the second extension arm 821 as a whole) are arranged opposite each other.

[0063] The following describes possible implementation methods for telescopic feet.

[0064] The telescopic feet are at least two in number. Each telescopic foot includes a foot base, an adjusting foot, and a telescopic cavity. The foot base is mounted on the second mounting plate 130 and sleeved on the adjusting foot. The adjusting foot is axially movable along the foot base and has a receiving cavity. The telescopic cavity is located 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 by a connecting structure. These two telescopic feet can be respectively mounted on two moving mechanisms. The connecting structure can be a pipe, or it can be an interconnected pipe and a liquid storage tank, etc. The telescopic cavity can be a corrugated body made of flexible material, but this is not a limitation; the telescopic cavity can also be a rubber bladder, etc. The telescopic cavity can be fixed or contacted with the inner wall of the receiving cavity and abut against the foot base.

[0065] The telescopic cavity can be filled with hydraulic medium. Under pressure, the hydraulic medium can flow between the interconnected telescopic cavities. When the ground is uneven, the unevenness generates different pressures. The fluidity of the hydraulic medium allows each telescopic cavity to adaptively adjust its extension and retraction, thereby causing the adjusting foot to adaptively extend and retract relative to the base. After the hydraulic medium stops flowing, the telescopic base can automatically level itself.

[0066] The various telescopic cavities are connected by a connecting structure. Each foot has a liquid channel, and each telescopic cavity has a liquid inlet. The liquid inlet of each telescopic foot is connected to one end of a liquid channel, and the other end of the liquid channel of each telescopic foot is connected via the connecting structure. Possibly, a mounting groove is formed within the foot, with a first limiting ring protruding inward at the groove opening. A second limiting ring is provided on the outer wall of the adjusting foot, positioned above the first limiting ring, to provide a limit and prevent the adjusting foot from falling off.

[0067] It should be noted that although this application uses a hydraulic foot as an example for describing the telescopic foot, this is not intended to limit the scope of protection of this application. As long as the telescopic foot 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. The motor is installed at a specific position on the bottom of the household appliance 900, and 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, corresponding control circuits and sensors can be equipped. Sensors can detect the horizontal state of the household appliance 900, such as gyroscopes, accelerometers, etc. These sensors transmit information such as the tilt angle of the home appliance 900 to the control circuit. The control circuit determines whether the home appliance 900 is in a horizontal state based on the sensor signals, and controls the operation of the motor and adjusts the length of the feet until the home appliance 900 reaches a horizontal state.

[0068] On the other hand, this application also provides a household appliance system, which includes the moving mechanism described in any of the above embodiments, and also includes a household appliance 900, with a base mounted on the bottom of the household appliance 900. It should be noted that the above-described mounting on the bottom of the household appliance 900 can refer to mounting on a base plate at the bottom of the household appliance 900.

[0069] It should be noted that the above embodiments are only used to illustrate the principles of this application and are not intended to limit the scope of protection of this application. Without departing from the principles of this application, those skilled in the art can adjust the above structure so that this application can be applied to more specific application scenarios.

[0070] For example, as an alternative implementation, the arrangement of the main body of the moving mechanism is not fixed. As long as it enables the roller assembly 200 to switch between the extended and retracted positions, its specific implementation can be adjusted. For example, the main body of the moving mechanism includes a base body, with both ends of the connecting shaft 300 rotatably connected to the base body. A slidably mounted rack guide rail is installed at the bottom of the base body, and a fixed gear is sleeved on the connecting shaft 300. The gear meshes with the rack, and the rack meshes with the motor gear, electrically controlling the position switching of the roller 210. These adjustments do not deviate from the principles of this application and are all within the protection scope of this application.

[0071] For example, as an alternative implementation, the specific form of the anti-deviation component 800 is not fixed. As long as it can limit the axial displacement of the roller assembly 200 on the connecting shaft 300, its specific form can be adjusted. For example, it may include an anti-deviation body with a mounting groove, in which the connecting shaft 300 is fixedly mounted. The anti-deviation body has a first abutment plate and a second abutment plate on opposite sides of the connecting shaft 300, both of which abut against the moving mechanism body. The first and second abutment plates can be symmetrically arranged. These adjustments do not deviate from the principles of this application and are all within the scope of protection of this application.

[0072] For example, at least one of the bending portion 830, the first fold 8111, and the second fold 8211 can be omitted.

[0073] For example, as an alternative implementation, the sidewall of the guide groove can protrude beyond the sidewall of the moving groove, and the connecting shaft 300 connects to the sidewall of the guide groove across the sidewall of the moving groove. In this case, the first strip hole can be omitted. Furthermore, the guide groove can have an opening 111 on only one side, and the moving groove can have a sloping groove 6211 on only one side. One end of the roller 210's shaft is located in the opening 111 and the sloping groove 6211, and the other end is located inside the moving groove. These adjustments do not deviate from the principles of this application and are all within the scope of protection of this application.

[0074] For example, as an alternative implementation, the first upright plate 610 and / or the second upright plate 620 can be omitted.

[0075] For example, as an alternative implementation, the base body 110 may not have a guide groove, and the guide groove may be replaced by a straight plate structure. Columns are provided on opposite sides of the straight plate structure, and the first connecting arm 220 and the second connecting arm 230 of the roller assembly 200 are rotatably connected to the columns through a connecting shaft 300.

[0076] For example, as an alternative implementation, the first and second mounting holes can be omitted. In this case, the second foot 950 / first foot 940 engages with and is fixed to the bottom of the household appliance 900 via the second mounting plate 130 / first mounting plate 120. This is as long as the second mounting plate 130 is for mounting the second foot 950 and the first mounting plate 120 is for mounting the first foot 940. These adjustments do not deviate from the principles of this application and are all within the scope of protection of this application.

[0077] The technical solutions of this application have 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 this application is obviously not limited to these specific embodiments. Without departing from the principles 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 scope of protection of this application.

Claims

1. A moving mechanism for household appliances, characterized in that, include: Roller assembly (200); The main body of the moving mechanism, wherein the roller assembly (200) is rotatably mounted on the main body of the moving mechanism via a connecting shaft (300), the main body of the moving mechanism is configured to enable the roller assembly (200) to switch between an extended position and a retracted position; An anti-offset component (800) is provided on the connecting shaft (300) and connected to the main body of the moving mechanism, and is used to limit the axial displacement of the roller assembly (200) on the connecting shaft (300).

2. The moving mechanism for household appliances according to claim 1, characterized in that, The anti-deviation component (800) includes a first spring (810) and a second spring (820). The first spring (810) and the second spring (820) are both sleeved on the connecting shaft (300). The first end of the first spring (810) is connected to the first end of the second spring (820). The second end of the first spring (810) has a first extension arm (811), and the second end of the second spring (820) has a second extension arm (821). The first extension arm (811) and the second extension arm (821) are located on the same side of the connecting shaft (300) and both abut against the main body of the moving mechanism.

3. The moving mechanism for household appliances according to claim 2, characterized in that, The first end of the first spring (810) and the first end of the second spring (820) are connected by a bend (830), which is located on the opposite side of the connecting shaft (300) on the first extension arm (811) and the second extension arm (821) and abuts against the main body of the moving mechanism.

4. The moving mechanism for household appliances according to claim 2, characterized in that, The end of the first extension arm (811) has a first flange (8111); and / or The end of the second extension arm (821) has a second flange (8211).

5. The moving mechanism for a household appliance according to any one of claims 1 to 4, characterized in that, The anti-deviation components (800) are symmetrically arranged; and / or The roller assembly (200) includes a roller (210), a first connecting arm (220) and a second connecting arm (230). The first connecting arm (220) and the second connecting arm (230) are spaced apart and are both connected to the shaft of the roller (210). The ends of the first connecting arm (220) and the second connecting arm (230) away from the roller (210) are both connected to the connecting shaft (300). The anti-offset member (800) is located between the first connecting arm (220) and the second connecting arm (230).

6. The moving mechanism for household appliances according to claim 1, characterized in that, The main body of the moving mechanism includes a base body (110) and a moving bracket (500). The connecting shaft (300) is disposed on the base body (110). The moving bracket (500) is disposed between the connecting shaft (300) and the base body (110) and is movable along a first direction and a second direction opposite to the first direction. The anti-deviation member (800) abuts against the moving bracket (500). The moving bracket (500) is provided with a pushing structure (621). The pushing structure (621) is used to push the roller assembly (200) to unfold and abut against the roller assembly (200) when the moving bracket (500) moves along the first direction.

7. The moving mechanism for household appliances according to claim 6, characterized in that, The front panel of the household appliance has a first extending edge (910) extending downward at the bottom, and the bottom panel of the household appliance has a second extending edge (920) extending downward. The first extending edge (910) and the second extending edge (920) are connected by a connector (930). The base body (110) is provided with a first mounting plate (120), the top of the first mounting plate (120) is provided with a groove (121), the groove (121) is used to accommodate the first extension edge (910) and the second extension edge (920), the first mounting plate (120) has a notch (125), and the connector (930) is located in the notch (125).

8. The moving mechanism for household appliances according to claim 7, characterized in that, The first mounting plate (120) includes a first part (123) and a second part (124), the groove (121) is formed in the first part (123), the second part (124) is disposed in the first part (123) and located on the rear side of the groove (121), the first part (123) and the second part (124) surround to form the notch (125), wherein the rear side coincides with the rear side of the household appliance.

9. The moving mechanism for household appliances according to claim 7, characterized in that, The first mounting plate (120) has a protrusion (122) extending downwards, such that the top of the first mounting plate (120) forms the groove (121) corresponding to the position of the protrusion (122). The moving mechanism further includes a handle (700), and the moving bracket (500) has a bent section (510) extending beyond the protrusion (122) and connected to the handle (700), so that the handle (700) can selectively drive the moving bracket (500) to move along the first direction or the second direction; and / or The base body (110) has a second mounting plate (130) on the side opposite to the first mounting plate (120), and both the first mounting plate (120) and the second mounting plate (130) are used to mount the feet of the household appliance.

10. A household appliance system, characterized in that, The household appliance system includes a household appliance and a moving mechanism as described in any one of claims 1 to 9, wherein the main body of the moving mechanism is disposed at the bottom of the household appliance.

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