Moving mechanism for a household appliance and household appliance system

Abstract

The utility model relates to a moving mechanism, specifically provide a kind of moving mechanism and household appliance system for household appliance, to solve the problem that the distance between the roller assembly is too small and the support is unstable due to the interference between the roller assembly and the foot of the existing moving mechanism. For this purpose, the moving mechanism of the utility model comprises a moving mechanism main body and a fixed plate. The moving mechanism main body has at least two groups of roller assemblies spaced along the first direction. The moving mechanism main body is configured to allow each roller assembly to descend to support the household appliance and to allow each roller assembly to rise and retract so that the household appliance is supported by the foot at the bottom of the household appliance when the roller assemblies are rising and retracting. The fixed plate is used to install the foot and is fixed to the bottom of the household appliance. The fixed plate is located on the side of the moving mechanism main body, and the orthographic projection along the first direction does not overlap the projection of each roller assembly and the projection of the foot.

Description

Technical Field

[0001] This utility model relates to a moving mechanism, specifically a moving mechanism and a home appliance system for home appliances. Background Technology

[0002] To facilitate the movement of household appliances, a moving mechanism is usually installed at the bottom of the appliance. This moving mechanism typically has at least two sets of roller assemblies to enable the appliance to move. Specifically, the moving mechanism can lower the roller assemblies to support the appliance for easy movement, or it can raise and retract the roller assemblies so that the appliance's feet touch the ground for stable support.

[0003] However, in order to avoid spatial interference between the roller assembly and the foot of the household appliance during descent, a common practice is to deliberately shorten the distance between the two sets of roller assemblies and move them away from the installation position of the foot. However, because the distance between the roller support points is too close, the support span of the household appliance is reduced, which not only makes the stability worse during movement and poses a risk of tipping over, but also results in uneven torque distribution when bearing load, affecting the overall reliability and safety of the product. Utility Model Content

[0004] The present invention aims to solve the above-mentioned technical problems, namely, to solve the problem of insufficient spacing between roller components and unstable support caused by the existing moving mechanism in order to avoid interference between the roller components and the base.

[0005] In a first aspect, the present invention provides a moving mechanism for a household appliance, comprising: a moving mechanism body having at least two sets of roller assemblies spaced apart along a first direction, the moving mechanism body being configured to allow each of the roller assemblies to descend to support the household appliance and to allow each of the roller assemblies to rise and retract, so that when the roller assemblies rise and retract, the bottom feet of the household appliance provide support for the household appliance; and a fixing plate for mounting the bottom feet and fixing them to the bottom of the household appliance, the fixing plate being disposed on the side of the moving mechanism body such that, when projected orthographically along the first direction, the projections of each of the roller assemblies do not overlap with the projections of the bottom feet.

[0006] In the above-mentioned optional technical solution for the moving mechanism of household appliances, the fixing plate includes an inclined portion for mounting the base, and the side of the inclined portion away from the main body of the moving mechanism is higher than the side close to the main body of the moving mechanism.

[0007] In the above-mentioned optional technical solution for the moving mechanism of household appliances, the fixing plate further includes a reinforcing part, which is located between the main body of the moving mechanism and the inclined part.

[0008] In the above-mentioned optional technical solution for the moving mechanism of a household appliance, the bottom of the household appliance to which the moving mechanism is applied has a first flange, and the reinforcing part is configured as a first groove, the first groove being adapted to accommodate the first flange.

[0009] In the above-mentioned optional technical solutions for the moving mechanism of household appliances, the fixing plate is connected to the main body of the moving mechanism by fasteners or is integrally formed.

[0010] In the above-mentioned optional technical solution for the moving mechanism of a household appliance, the bottom of the household appliance to which the moving mechanism is applied has a base plate with an opening in the middle. The fixing plate is closer to the outer side of the base plate than the main body of the moving mechanism, so that the feet are connected to the base plate and the main body of the moving mechanism can partially cover the opening.

[0011] In the above-mentioned optional technical solution for the moving mechanism of household appliances, at least two fixed plates are spaced apart on the same side of the main body of the moving mechanism along the first direction, one of the fixed plates is used to install a fixed foot, and at least one of the remaining fixed plates is used to install a hydraulic foot. The orthographic projection of the fixed foot and the hydraulic foot along the first direction does not overlap with each of the roller assemblies.

[0012] In the above-mentioned optional technical solutions for the moving mechanism of household appliances, the number of moving mechanisms is at least two, and the hydraulic feet on the at least two moving mechanisms are interconnected; and / or at least one of the fixing plates on both sides of the first direction is provided with a strip-shaped hole extending along the first direction, and the corresponding fixing foot or the hydraulic foot can pass through the strip-shaped hole and be fixed to the bottom of the household appliance.

[0013] In the above-mentioned optional technical solution for the moving mechanism of household appliances, the main body of the moving mechanism includes: a base, with the fixed plate disposed on the side of the base; a moving bracket, which is movably disposed at the bottom of the base; and a handle, which is rotatably connected to the base and drively connected to the moving bracket to selectively move the moving bracket along a first moving direction and a second moving direction opposite to the first moving direction. When the moving bracket is moved along the first moving direction by the handle, it can drive each of the roller assemblies to descend and support the household appliance. When the moving bracket is moved along the second moving direction by the handle, it allows each of the roller assemblies to rise and retract.

[0014] In the above-mentioned optional technical solutions for the moving mechanism of household appliances, each of the roller assemblies includes a roller and a connecting arm. One end of the connecting arm is rotatably connected to the base through a connecting shaft, and the other end of the connecting arm is rotatably connected to the roller. The moving bracket has a pushing structure corresponding to each of the roller assemblies. Each pushing structure is used to push the corresponding roller assembly down when the moving bracket moves along the first moving direction, and to abut against the corresponding roller assembly when the roller assembly is down.

[0015] In the above-mentioned optional technical solutions for the moving mechanism of household appliances, the main body of the moving mechanism further includes a single torsion spring or a double torsion spring, which is sleeved on the connecting shaft and abuts against the moving bracket.

[0016] In the above-mentioned optional technical solution for the moving mechanism of a household appliance, the bottom of the household appliance to which the moving mechanism is applied has a second flange, and the top of the base is provided with a second groove, the second groove being used to accommodate the second flange.

[0017] In the above-mentioned optional technical solution for the moving mechanism of household appliances, a protrusion is formed at the position corresponding to the second groove at the bottom of the base. The moving bracket has a moving body, a first bending section and a second bending section. The moving body is attached to the bottom of the base. The first bending section is formed by bending downward from the moving body. The second bending section is formed by bending from the first bending section towards the protrusion. The second bending section is connected to the handle in a driving connection.

[0018] On the other hand, the present invention also provides a household appliance system, which includes the household appliance and the moving mechanism described in any of the above embodiments. The bottom of the household appliance has a foot, which is disposed on the fixing plate of the moving mechanism and connected to the bottom of the household appliance.

[0019] This utility model provides a moving mechanism for household appliances, including a moving mechanism body and a fixing plate; the moving mechanism body has at least two sets of roller assemblies spaced apart along a first direction, the moving mechanism body is configured to allow each roller assembly to descend to support the household appliance, and allow each roller assembly to rise and retract, so that when the roller assemblies rise and retract, the bottom feet of the household appliance provide support for the household appliance; the fixing plate is used to install the bottom feet and fix them to the bottom of the household appliance, the fixing plate is located on the side of the moving mechanism body, so that when projected orthogonally along the first direction, the projection of each roller assembly does not overlap with the projection of the bottom feet.

[0020] Since the feet of the household appliance are mounted on a fixed plate, and the fixed plate is fixed to the bottom of the household appliance, the fixed plate is set on the side of the main body of the moving mechanism. When projected orthogonally along the first direction, the projection of each roller assembly does not overlap with the projection of the feet. This allows the feet to be moved out of the spacing adjustment path between the roller assemblies, eliminating the possibility of interference between the roller assemblies and the feet during movement. Therefore, the spacing between the roller assemblies does not need to be tightly arranged and can be set sufficiently according to stability requirements, effectively increasing the support span and improving the anti-tipping ability and overall stability of the household appliance in the moving state.

[0021] Solution 1: A moving mechanism for a household appliance, characterized in that it includes a moving mechanism body having at least two sets of roller assemblies spaced apart along a first direction, the moving mechanism body being configured to allow each of the roller assemblies to descend to support the household appliance, and to allow each of the roller assemblies to rise and retract, so that when the roller assemblies rise and retract, the bottom feet of the household appliance provide support for the household appliance; a fixing plate for mounting the bottom feet and fixing them to the bottom of the household appliance, the fixing plate being disposed on the side of the moving mechanism body such that, when projected orthographically along the first direction, the projections of each of the roller assemblies do not overlap with the projections of the bottom feet.

[0022] Option 2: The moving mechanism for household appliances according to Option 1, characterized in that the fixing plate includes an inclined portion, the inclined portion is used to install the base, and the side of the inclined portion away from the main body of the moving mechanism is higher than the side close to the main body of the moving mechanism.

[0023] Option 3: The moving mechanism for household appliances according to Option 2, characterized in that the fixing plate further includes a reinforcing part, which is located between the main body of the moving mechanism and the inclined part.

[0024] Option 4: The moving mechanism for household appliances according to Option 3, characterized in that the bottom of the household appliance to which the moving mechanism is applied has a first flange, and the reinforcing part is configured as a first groove, the first groove being adapted to accommodate the first flange.

[0025] Option 5: The moving mechanism for household appliances according to Option 1, characterized in that the fixing plate is connected to the main body of the moving mechanism by fasteners or is integrally formed.

[0026] Option 6: The moving mechanism for household appliances according to Option 1, characterized in that the bottom of the household appliance to which the moving mechanism is applied has a base plate, the base plate has an opening in the middle, and the fixing plate is closer to the outer side of the base plate than the main body of the moving mechanism, so that the feet are connected to the base plate and the main body of the moving mechanism can partially cover the opening.

[0027] Scheme 7. A moving mechanism for a household appliance according to any one of Schemes 1 to 6, characterized in that at least two fixed plates are spaced apart on the same side of the main body of the moving mechanism along the first direction, one of the fixed plates is used to install a fixed foot, and at least one of the remaining fixed plates is used to install a hydraulic foot, wherein the orthographic projection of the fixed foot and the hydraulic foot along the first direction does not overlap with each of the roller assemblies.

[0028] Option 8: The moving mechanism for a household appliance according to Option 7, characterized in that the number of the moving mechanisms is at least two, the hydraulic feet on the at least two moving mechanisms are interconnected; and / or at least one of the fixing plates on both sides of the first direction is provided with a strip-shaped hole extending along the first direction, so that the corresponding fixing foot or the hydraulic foot can pass through the strip-shaped hole and be fixed to the bottom of the household appliance.

[0029] Option 9: The moving mechanism for household appliances according to Option 1, characterized in that the main body of the moving mechanism includes: a base, with the fixed plate disposed on the side of the base; a moving bracket, movably disposed at the bottom of the base; and a handle, rotatably connected to the base and drively connected to the moving bracket, so as to selectively move the moving bracket along a first moving direction and a second moving direction opposite to the first moving direction. When the moving bracket is moved along the first moving direction by the handle, it can drive each of the roller assemblies to descend and support the household appliance. When the moving bracket is moved along the second moving direction by the handle, it allows each of the roller assemblies to rise and retract.

[0030] Solution 10: The moving mechanism for household appliances according to Solution 9, characterized in that each roller assembly includes a roller and a connecting arm, one end of the connecting arm is rotatably connected to the base via a connecting shaft, the other end of the connecting arm is rotatably connected to the roller, and the moving bracket has a pushing structure corresponding to each roller assembly, each pushing structure being used to push the corresponding roller assembly down when the moving bracket moves along the first moving direction, and to abut against the corresponding roller assembly when the roller assembly descends.

[0031] Solution 11: The moving mechanism for household appliances according to Solution 10, characterized in that the main body of the moving mechanism further includes a single torsion spring or a double torsion spring, wherein the single torsion spring or the double torsion spring is sleeved on the connecting shaft and abuts against the moving bracket.

[0032] Solution 12: The moving mechanism for household appliances according to Solution 9, characterized in that the bottom of the household appliance to which the moving mechanism is applied has a second flange, and the top of the base is provided with a second groove, the second groove being used to accommodate the second flange.

[0033] Option 13: The moving mechanism for household appliances according to Option 12, characterized in that a protrusion is formed at the position corresponding to the second groove at the bottom of the base, the moving bracket has a moving body, a first bending section and a second bending section, the moving body is attached to the bottom of the base, the first bending section is formed by bending downward from the moving body, the second bending section is formed by bending from the first bending section towards the protrusion, and the second bending section is connected to the handle in a driving connection.

[0034] Option 14: A household appliance system, characterized in that the household appliance system includes any one of Options 1 to 13 and a moving mechanism, wherein the bottom of the household appliance has a foot, the foot is disposed on a fixed plate of the moving mechanism and connected to the bottom of the household appliance. Attached Figure Description

[0035] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which: Figure 1 This is a schematic diagram of the structure of the household appliance system of this utility model; Figure 2 This is a partial structural diagram (a) of the bottom of the household appliance system of this utility model; Figure 3 This is a schematic diagram of the moving mechanism of this utility model (I); Figure 4 This is a schematic diagram (II) of the moving mechanism of this utility model; Figure 5 This is a partial structural schematic diagram of the household appliance system of this utility model; Figure 6 This is a schematic diagram (III) of the moving mechanism of this utility model.

[0036] Explanation of reference numerals in the attached figures: 1-Moving mechanism; 11-Moving mechanism body; 111-Roller assembly; 1111-Roller; 1112-Connecting arm; 112-Base; 1121-Protrusion; 113-Moving bracket; 1131-Moving body; 1132-Second bending section; 114-Handle; 115-Connecting shaft; 116-Single torsion spring; 12-Fixing plate; 121-Inclined part; 122-First groove; 123-Strip hole; 13-Fastener; 2-Foot; 3-Household appliance; 31-Base plate; 311-First flange; 312-Opening; 32-Front plate; 33-Second flange. Detailed Implementation

[0037] 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 present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0038] It should be noted that in the description of this utility model, the terms "upper," "lower," "top," and "bottom" refer to the upper and lower parts, top and bottom, of the household appliance 3 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 3 in its use state, and "rear" refers to the direction near its back panel based on the horizontal direction of the household appliance 3 in its use state. The width direction is the direction from one side panel to the other side panel of the household appliance 3. Furthermore, it should be noted that in the description of this utility model, 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 utility model according to the specific circumstances.

[0039] To address the problem of insufficient roller spacing and unstable support in existing moving mechanisms caused by the need to avoid interference between the roller assembly and the base, such as... Figures 1 to 3As shown, this utility model provides a moving mechanism 1 for a household appliance 3, including a moving mechanism body 11 and a fixing plate 12. The moving mechanism body 11 has at least two sets of roller assemblies 111 (two sets are shown in the example in the figure) spaced apart along a first direction. The moving mechanism body 11 is configured to allow each roller assembly 111 to descend to support the household appliance 3, and to allow each roller assembly 111 to rise and retract, so that when the roller assemblies 111 rise and retract, the bottom feet 2 of the household appliance 3 provide support for the household appliance 3. The fixing plate 12 is used to install the bottom feet 2 and fix them to the bottom of the household appliance 3. The fixing plate 12 is located on the side of the moving mechanism body 11, so that the projection (h2) of each roller assembly 111 along the first direction does not overlap with the projection (h1) of the bottom feet 2. The first direction is preferably the front-back direction. In this invention, there are no restrictions on the fixing method of fixing the fixing plate 12 to the bottom of the household appliance 3. For example, the connecting post (such as a bolt) on the foot 2 passes through the fixing plate 12 and is fixed to the bottom of the household appliance 3. A clamping part (such as a nut) is sleeved on the connecting post, and the clamping part presses the fixing plate 12; or after the connecting post on the foot 2 passes through the fixing plate 12 and is fixed to the bottom of the household appliance 3, the foot 2 directly presses the fixing plate 12; or the foot 2 is installed on the fixing plate 12, and the fixing plate 12 is fixed to the bottom of the household appliance 3 by screws, rivets and other connecting parts, etc.

[0040] Since the base 2 of the household appliance 3 is mounted on the fixed plate 12 and the fixed plate 12 is fixed to the bottom of the household appliance 3, the fixed plate 12 is set on the side of the main body 11 of the moving mechanism. When projected in the first direction, the projection of each roller assembly 111 does not overlap with the projection of the base 2. This allows the base 2 to be moved out of the spacing adjustment path between each roller assembly 111, eliminating the possibility of interference between the roller assembly 111 and the base 2 during movement. Therefore, the spacing between each roller assembly 111 does not need to be tightly arranged and can be set at sufficient intervals according to stability requirements, effectively increasing the support span and improving the anti-overturning ability and overall stability of the household appliance 3 in the moving state.

[0041] As one possible implementation method, such as Figure 4 As shown, and refer to Figures 1 to 3 The fixing plate 12 includes an inclined portion 121 for mounting the base 2. The side of the inclined portion 121 away from the moving mechanism body 11 is higher than the side near the moving mechanism body 11, that is, the inclined portion 121 tilts upward from the side near the moving mechanism body 11 (e.g., Figure 4The upward tilt angle between the inclined portion 121 and the horizontal plane is α, and the value of α is preferably greater than 0° and less than 45° (e.g., 15°, 20°, etc.). When the base 2 is installed on the inclined portion 121 and the fixing plate 12 is fixed to the bottom of the household appliance 3, the fixing process will generate a force on the inclined portion 121 that flattens or tends to flatten it. This process causes the fixing plate 12 to undergo elastic deformation, thereby continuously applying a pre-tightening force that forces the moving mechanism body 11 to fit tightly against the bottom of the household appliance 3. This effectively overcomes the sagging tendency of the moving mechanism body 11 due to its own weight, ensuring that it always maintains a stable fit against the bottom of the household appliance 3 during use, thus improving the overall structural rigidity.

[0042] As one possible implementation, the fixing plate 12 also includes a reinforcing portion located between the moving mechanism body 11 and the inclined portion 121. The reinforcing portion can structurally strengthen the transition position between the moving mechanism body 11 and the inclined portion 121. On the one hand, it can enhance the load-bearing strength of the connection position between the moving mechanism body 11 and the inclined portion 121, avoid stress concentration at the transition position due to the inclined portion 121 being flattened and subjected to force, and ensure the rigidity and durability of the overall structure of the fixing plate 12. On the other hand, it can make the force on the inclined portion 121 more smoothly transmitted to the moving mechanism body 11, ensuring that the preload force acts continuously and stably on the moving mechanism body 11, further helping to overcome its sagging tendency and maintain the stable fit between the moving mechanism body 11 and the bottom of the household appliance 3.

[0043] As one possible implementation method, such as Figure 5 As shown, and refer to Figures 1 to 4 The bottom of the household appliance 3 used in the moving mechanism 1 has a first flange 311, and the reinforcing part is provided as a first groove 122, which is suitable for accommodating the first flange 311. The first groove 122 can be a stamped groove or a groove formed by integral casting, etc. When it is a stamped groove, that is, the first groove 122 is stamped on the top of the fixed plate 12, and the side of the inclined part 121 near the moving mechanism body 11 is integrally connected to the groove edge of the first groove 122. (Refer to...) Figure 5 and Figure 2 In this invention, the first flange 311 can be formed on the base plate 31 of the household appliance 3. For example, the base plate 31 can be a hollow base plate 31 with a central opening 312, and the side edge of the opening 312 extends downward to form the first flange 311, which extends in the front-back direction. However, this is not a limitation; the first flange 311 can also be a flange on a crossbeam at the bottom of the household appliance 3 arranged in the front-back direction. These adjustments do not deviate from the principle of this invention and are all within the protection scope of this invention. In addition, it should be noted that the first groove 122 of this invention can be a U-shaped groove, an L-shaped groove, etc., and this invention does not limit its specific shape.

[0044] Both the first groove 122 and the first flange 311 are reinforcing structures, significantly enhancing structural rigidity. After the first flange 311 is accommodated in the first groove 122, they can work together to share the load. When the inclined portion 121 generates force due to being fixed to the bottom of the household appliance 3, the first flange 311 and the first groove 122 can jointly transmit the force, further ensuring a stable fit between the main body 11 of the moving mechanism and the bottom of the household appliance 3. Furthermore, the first groove 122 and the first flange 311 can also position the moving mechanism 1, ensuring quick alignment and installation. Their cooperation also prevents displacement of the moving mechanism 1 during use.

[0045] As one possible implementation method, such as Figure 6 As shown, and refer to Figure 4 The fixed plate 12 is connected to the moving mechanism body 11 by fasteners 13. Fasteners 13 can be bolts, rivets, and / or clips, etc. For example, the fixed plate 12 also includes a mounting portion, with a first groove 122 located between the mounting portion and the inclined portion 121. A mounting plate can be correspondingly provided on the moving mechanism body 11, and the mounting portion and the mounting plate are connected by fasteners 13. However, this is not a limitation; the fixed plate 12 and the moving mechanism body 11 can also be integrally formed. These possible adjustments do not depart from the principle of this utility model and are all within the protection scope of this utility model.

[0046] As one possible implementation method, refer to Figure 2 The fixed plate 12 is closer to the outer side of the base plate 31 than the moving mechanism body 11, so that the foot 2 can be connected to the base plate 31 and the moving mechanism body 11 can partially cover the opening 312. Wherein, the moving mechanism body 11 can partially cover the opening 312, that is, the moving mechanism body 11 spans both sides of the opening 312 of the base plate 31.

[0047] When the roller assembly 111 descends to support the household appliance 3 and begins to move, the weight of the household appliance 3 and the dynamic load generated during the movement are transmitted through the main body 11 of the moving mechanism. At this time, the main body 11 of the moving mechanism, which partially covers the opening 312, can act as a crossbeam, effectively resisting the deformation of the opening 312 that may be caused by load and impact, and ensuring the stability of the movement of the household appliance 3.

[0048] As one possible implementation, the main body 11 of the moving mechanism has at least two fixed plates 12 spaced apart along a first direction on the same side (two are shown in the example in the figure). One fixed plate 12 is used to install a fixed foot 2 (the example in the figure shows a fixed foot installed on the front fixed plate, where the fixed foot is not shown), and at least one other fixed plate 12 is used to install a hydraulic foot 2 (the example in the figure shows a hydraulic foot installed on the rear fixed plate). The function of the hydraulic foot 2 is to automatically level the household appliance 3 when the roller assembly 111 rises and retracts. The orthographic projections of the fixed foot and the hydraulic foot 2 along the first direction do not overlap with each roller assembly 111, thereby ensuring that the spacing between the roller assemblies 111 on both sides can be adjusted arbitrarily as needed, ensuring a reasonable support span. It is understood that the 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 of the threaded rod passes through the fixed plate 12 and is connected to the bottom of the household appliance 3. The support pad is used to contact a reference surface such as the ground. A fastening nut can be fitted onto the threaded rod, which presses against the fixing plate 12. Alternatively, the fastening nut can be placed between the bottom of the household appliance 3 and the fixing plate 12, or the support pad can directly press against the fixing plate 12.

[0049] In one possible implementation, the number of moving mechanisms 1 is at least two (two are shown in the example in the figure), and the hydraulic feet on at least two moving mechanisms 1 are interconnected. It is understood that the hydraulic feet are feet capable of automatically leveling the household appliance 3. The hydraulic feet can be interconnected in the following ways: for example, a hydraulic foot includes a foot base, an adjusting foot, and a telescopic cavity. The foot base is mounted on the fixed plate 12 and fitted onto the adjusting foot. The adjusting foot is movably disposed along the axial direction of the foot base. The foot base can be connected to the bottom of the household appliance 3 via bolts or other connecting parts. The adjusting foot has a receiving cavity, and the telescopic cavity is disposed in the receiving cavity and configured to drive the adjusting foot to move relative to the foot base. The telescopic cavities of at least two hydraulic feet are connected by a connecting structure. 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 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 corresponding to the receiving cavity and abut against the foot base. The telescopic cavities can be filled with hydraulic medium. Under pressure, the hydraulic medium flows between the interconnected telescopic cavities. On uneven ground, the unevenness generates different pressures, and the fluidity of the hydraulic medium causes the telescopic cavities to adaptively adjust and extend, thereby causing the adjusting feet to adaptively extend and extend relative to the base. When the hydraulic medium stops flowing, the hydraulic feet can automatically level themselves. It should be noted that the above-described hydraulic foot structure is only exemplary; its specific structure can be adjusted as long as it can automatically level the household appliance 3.

[0050] In one possible implementation, at least one fixing plate 12 on both sides of the first direction has a strip-shaped hole 123 extending along the first direction. A corresponding fixing foot or hydraulic foot can pass through the strip-shaped hole 123 and be fixed to the bottom of the household appliance 3. For example, when the first direction is front-to-back, the front fixing plate 12 is used to install the fixing foot, and the bolt of the fixing foot passes through the front fixing plate 12 and is fixedly connected to the bottom of the household appliance 3. The rear fixing plate 12 is used to install the hydraulic foot, which has a mounting base with bolts and other connecting parts. These connecting parts pass through the strip-shaped hole 123 and are connected to the bottom of the household appliance 3. This configuration allows the position of the feet relative to the front and back of the household appliance 3 to be adjustable, thereby enabling adjustment of the foot position for household appliances 3 of different depths. This is suitable for different models of household appliances 3 and facilitates the modification and upgrading of existing household appliances 3.

[0051] In one possible implementation, the main body 11 of the moving mechanism includes a base 112, a moving bracket 113, and a handle 114. Fixed plates 12 are disposed on the side of the base 112 (each fixed plate 12 is spaced apart on the same side of the base 112). The moving bracket 113 is movably disposed at the bottom of the base 112. The handle 114 is rotatably connected to the base 112 and is drively connected to the moving bracket 113 so as to drive the moving bracket 113 to selectively move along a first moving direction and a second moving direction opposite to the first moving direction. When the moving bracket 113 is driven to move along the first moving direction by the handle 114, it can drive each roller assembly 111 to descend and support the household appliance 3. When the moving bracket 113 is driven to move along the second moving direction by the handle 114, it allows each roller assembly 111 to rise and retract.

[0052] Furthermore, each roller assembly 111 includes a roller 1111 and a connecting arm 1112. One end of the connecting arm 1112 is rotatably connected to the base 112 via a connecting shaft 115, and the other end of the connecting arm 1112 is rotatably connected to the roller 1111. The movable support 113 has a pushing structure corresponding to each roller assembly 111. Each pushing structure is used to push the corresponding roller assembly 111 down when the movable support 113 moves along the first moving direction, and to abut against the corresponding roller assembly 111 when the roller assembly 111 descends. The connecting arm 1112 of each roller assembly 111 can be a single connecting arm 1112, or it can include 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 rotating shaft of the roller 1111. The ends of the first connecting arm and the second connecting arm away from the roller 1111 are both connected to the connecting shaft 115. The roller 1111 can be located between the first connecting arm and the second connecting arm, or there can be at least two rollers 1111, each located outside the first and second connecting arms. The first and second connecting arms can be fixedly connected to the connecting shaft 115, which is rotatably connected to the base 112. Alternatively, the first and second connecting arms can be rotatably connected to the connecting shaft 115, which is fixedly connected to the base 112. These possible adjustments do not deviate from the principle of this utility model and are all within the protection scope of this utility model.

[0053] The base 112 of this invention may have a guide groove, such as a U-shaped guide groove or a guide groove with one end closed and the other open, and the guiding direction may be the first direction mentioned above. Both ends of the connecting shaft 115 of each roller assembly 111 are connected to the side wall of the guide groove, and the movable support 113 is movably disposed in the guide groove. Possibly, the movable support 113 includes a movable body 1131, which is located between the connecting shaft 115 and the bottom of the guide groove. The movable body 1131 has a first upright plate and a second upright plate on both sides in the width direction, so that the movable body 1131, the first upright plate and the second upright plate surround to form a movable groove. The movable groove and the guide groove are in contact with each other, that is, the movable body 1131 is in contact with the bottom of the guide groove, and the first upright plate and the second upright plate are in contact with the side walls of the guide groove, so as to realize the stable movement of the movable support 113 and avoid shaking. The first and second upright plates of the movable slot are each provided with clearance holes along the moving direction. The two ends of the connecting shaft 115 pass through the clearance holes on both sides and are connected to the side wall of the guide slot to ensure the smooth movement of the movable bracket 113. The pushing structure of this utility model is provided on the moving body 1131 of the movable bracket 113. The pushing structure is used to push the roller assembly 111 down and abut against the roller assembly 111 when it descends, so that the roller assembly 111 supports the household appliance 3 and facilitates the movement of the household appliance 3 by rotating the rollers 1111.

[0054] Possibly, refer to Figure 2 and Figure 3 The bottom of the household appliance 3 to which the moving mechanism 1 is applied has a second flange 33, and the top of the base 112 has a second groove (which can be a U-shaped groove, an L-shaped groove, or a groove with one end closed and the other open). A protrusion 1121 is formed at the bottom of the base 112 corresponding to the second groove. The second groove is used to accommodate the second flange 33 to ensure that the base 112 is horizontally installed at the bottom of the household appliance 3, and to avoid the moving mechanism 1 being obstructed due to tilting or instability. In addition to the moving body 1131, the moving bracket 113 also has a first bending section and a second bending section 1132. The first bending section is formed by bending downward from the moving body 1131, and the second bending section 1132 is formed by bending from the first bending section toward the protrusion 1121. The second bending section 1132 is connected to the handle 114 to facilitate the operation of the handle 114 while ensuring the fit between the moving body 1131 and the base 112 and horizontal installation. The second flange 33 can be a flange extending along the width direction of the household appliance 3 at the front of the base plate 31, or a flange extending downward on the inner fold at the bottom of the front plate 32. The second groove can be a stamping groove, or a groove formed by integral casting, etc.

[0055] The cooperation between the second groove and the second flange 33, combined with the cooperation between the first flange 311 and the first groove 122, can limit the movement mechanism 1 in two directions, such as limiting the front-to-back direction and the width direction of the household appliance 3, thereby effectively resisting impact forces and complex loads in all directions, and also achieving precise positioning of the movement mechanism 1.

[0056] The following describes a specific embodiment in which the handle 114 is rotatably connected to the base 112 and is drive-connected to the movable bracket 113. For example, the handle 114 is hinged to the end of the base 112. One of the handle 114 and the movable bracket 113 has a rotating shaft, and the other has a guide hole. The rotating shaft is rotatably disposed in the guide hole and is movable within it. Specifically, the handle 114 has a first connecting portion and a second connecting portion arranged in a cross configuration. The first connecting portion is hinged to the end of the base 112, and the second connecting portion is fixedly connected to the rotating shaft. The second bent section 1132 has a guide hole, and the rotating shaft is rotatably disposed in the guide hole and is movable within it. A limiting block may be provided at the end of the rotating shaft to prevent it from dislodging from the guide hole.

[0057] It should be noted that the above configuration is not restrictive. As long as the handle 114 can selectively move the movable support 113 along the first moving direction and the second moving direction opposite to the first moving direction, the specific configuration can be adjusted. For example, the handle 114 can be hinged to the base 112 and connected to the movable support 113 via a transmission assembly, such as a connecting rod, with one end of the connecting rod hinged to the movable support 113 and the other end hinged to the handle 114. These possible adjustments do not deviate from the principle of this utility model and are all within the protection scope of this utility model.

[0058] This invention does not limit the specific form of the pushing structure. Two possible implementation methods are described below.

[0059] In a first possible implementation, the pushing structure is a wedge-shaped block with an inclined surface facing the roller assembly 111. The tip of the inclined surface is connected to the movable support 113, so that when the movable support 113 moves in a first moving direction, the inclined surface can extend into the gap between the roller assembly 111 and the movable support 113, thereby guiding the roller assembly 111 to rotate away from the movable support 113. When the movable support 113 moves in the opposite direction, the wedge-shaped block moves away from the roller assembly 111, allowing the roller assembly 111 to retract.

[0060] In a second possible implementation, the push structure is configured as an inclined groove on the side wall of the moving groove. The guide groove has vertically oriented openings 312 on both opposite side walls. The two ends of the roller 1111's shaft are respectively located in the inclined grooves on both sides and in the openings 312 on both sides of the guide groove. In this case, the roller 1111 can be located outside the guide groove, while the first connecting arm and the second connecting arm can be located inside the moving groove. This configuration allows the roller assembly 111 to gradually descend and unfold under the influence of the inclined walls of the inclined groove when the moving support 113 moves in the first moving direction, until the roller 1111 contacts the ground. When the moving support 113 moves in the opposite direction, the inclined walls of the inclined groove move away from the roller assembly 111, allowing the roller assembly 111 to retract.

[0061] The working principle of the moving mechanism 1 of this utility model is described below.

[0062] When the roller assembly 111 needs to rise and retract, the handle 114 is rotated at a certain angle. The moving groove moves smoothly along the second moving direction (e.g., backward) under the guidance of the guide groove, and the pushing structure moves away from the roller assembly 111, allowing the roller assembly 111 to rise and retract. When the roller 1111 needs to descend to move the household appliance 3, the handle 114 is rotated at a certain angle in the opposite direction. The moving groove moves smoothly along the first moving direction (e.g., forward) under the guidance of the guide groove, and the pushing structure pushes the roller assembly 111 to rotate away from the base 112. The roller 1111 descends and contacts the ground. The pushing structure abuts against the roller assembly 111, and the roller assembly 111 supports the household appliance 3.

[0063] In one possible implementation, the moving mechanism 1 further includes a single torsion spring 116 or a double torsion spring, which is sleeved on the connecting shaft 115 and abuts against the moving bracket 113. This arrangement facilitates the return of the roller assembly 111 to its retracted position and avoids resonance noise between the moving bracket 113 and the base 112. The two ends of the single torsion spring 116 can be located on either side of the connecting shaft 115 to facilitate the return of the roller assembly 111.

[0064] Possibly, the double torsion spring includes a first spring and a second spring, both of which are sleeved on the connecting shaft 115. The first end of the first spring is connected to the first end of the second spring, and the second end of the first spring has a first extension arm, while the second end of the second spring has a second extension arm. The first and second extension arms are located on the same side of the connecting shaft 115 and both abut against the movable bracket 113. This arrangement physically constrains the axial degree of freedom of the connecting shaft 115, ensuring that the roller assembly 111 maintains the correct posture and relative position even when subjected to lateral forces, thus eliminating lateral deviation. Therefore, when the roller assembly 111 needs to be retracted, it can always rotate smoothly and unobstructed along a preset path and accurately reach the retracted position, thereby achieving a smooth switch with the base and ensuring the stable placement of the household appliance 3.

[0065] In one possible implementation, the first end of the first spring and the first end of the second spring are connected by a bending structure. The bending structure is located on the opposite side of the connecting shaft 115 to the first and second extension arms and abuts against the movable bracket 113. The bending structure can be U-shaped, W-shaped, etc., and this invention does not limit its specific form. This arrangement allows the double torsion springs to form a three-point support structure (two side extension arms and the middle bending structure) around the connecting shaft 115, which can more evenly distribute the axial load and effectively suppress the lateral displacement of the roller assembly 111. Furthermore, to prevent wear on the movable bracket 113, both the ends of the first and second extension arms can have inwardly folded arms.

[0066] On the other hand, this utility model also provides a household appliance system, including the household appliance 3 described above and a moving mechanism 1. The bottom of the household appliance 3 has the aforementioned feet, which are mounted on the fixing plate 12 of the moving mechanism 1 and connected to the bottom of the household appliance 3. The household appliance 3 can be a washing machine, refrigerator, washer-dryer combo, air conditioner, or dishwasher, etc.

[0067] It should be noted that the above embodiments are only used to illustrate the principle of this utility model and are not intended to limit the scope of protection of this utility model. Without departing from the principle of this utility model, those skilled in the art can adjust the above structure so that this utility model can be applied to more specific application scenarios.

[0068] For example, as an alternative implementation, although the reinforcing part of this utility model is described using the first groove 122 as an example, this is not intended to limit the scope of protection of this utility model, as long as the reinforcing part can strengthen the structure of the fixing plate 12. For example, the reinforcing part can be a rib or rib block provided on the fixing plate 12, etc. These possible adjustments do not deviate from the principle of this utility model and are all within the scope of protection of this utility model.

[0069] For example, as an alternative implementation, although this utility model is described using a base comprising fixed feet and hydraulic feet as an example, this is not intended to limit the scope of protection of this utility model. For example, the feet can all be fixed feet or all be hydraulic feet. These possible adjustments do not depart from the principle of this utility model and are all within the scope of protection of this utility model.

[0070] 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 115 passes over the sidewall of the moving groove and connects to the sidewall of the guide groove. In this case, the setting of the clearance hole can be omitted.

[0071] For example, as an alternative implementation, the base 112 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 and the second connecting arm of the roller assembly 111 are rotatably connected to the columns through a connecting shaft 115.

[0072] For example, as an alternative implementation, the movable support 113 may omit the first upright plate and / or the second upright plate.

[0073] For example, as an alternative implementation, the moving mechanism 1 includes a base 112 and a roller assembly 111. The roller assembly 111 may include rollers 1111 and a rotating shaft on the rollers 1111. A driving element (electric push rod or cylinder, etc.) is provided on the bottom of the base 112. The driving element is connected to the rotating shaft on the rollers 1111 to drive the roller assembly 111 to rise and fall. As long as the moving mechanism 1 is configured to allow each roller assembly 111 to fall to support the household appliance 3 and to allow each roller assembly 111 to rise and retract so that the bottom feet of the household appliance 3 provide support when the roller assembly 111 rises and retracts, any adjustment to its configuration will not deviate from the principle of this utility model and will be within the protection scope of this utility model.

[0074] For example, as an alternative implementation, although the roller assembly 111 of this utility model is described as including roller 1111 and connecting arm 1112, this is not intended to limit the scope of protection of this utility model. For example, the roller assembly 111 includes roller 1111 and roller 1111's pivot. Roller 1111 is rotatably mounted on movable bracket 113 via roller 1111's pivot. Guide wedge is provided on base 112, and guide wedge is provided on movable bracket 113. Guide wedge is located in guide wedge. When handle 114 drives movable bracket 113 to move in the first moving direction, movable bracket 113 descends as a whole under the guidance of guide wedge, and roller 1111 contacts the ground to support household appliance 3. When handle 114 drives movable bracket 113 to move in the second moving direction, movable bracket 113 and roller assembly 111 reset and retract under the cooperation of wedge and wedge. These possible adjustments do not deviate from the principles of this utility model and are all within the protection scope of this utility model.

[0075] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A moving mechanism for household appliances, characterized in that, include: The moving mechanism body (11) has at least two sets of roller assemblies (111) spaced apart along a first direction. The moving mechanism body (11) is configured to allow each of the roller assemblies (111) to descend to support the household appliance and to allow each of the roller assemblies (111) to rise and retract so that the household appliance is supported by the feet at the bottom of the household appliance when the roller assemblies (111) rise and retract. A fixing plate (12) is used to install the feet and fix them to the bottom of the household appliance. The fixing plate (12) is located on the side of the main body (11) of the moving mechanism, so that the projection of each roller assembly (111) along the first direction does not overlap with the projection of the feet.

2. The moving mechanism for household appliances according to claim 1, characterized in that, The fixing plate (12) includes an inclined portion (121) for mounting the foot, and the side of the inclined portion (121) away from the main body (11) of the moving mechanism is higher than the side close to the main body (11) of the moving mechanism.

3. The moving mechanism for household appliances according to claim 2, characterized in that, The fixed plate (12) also includes a reinforcing part located between the main body (11) of the moving mechanism and the inclined part (121).

4. The moving mechanism for household appliances according to claim 3, characterized in that, The bottom of the household appliance to which the moving mechanism is applied has a first flange (311), and the reinforcing part is configured as a first groove (122) which is adapted to accommodate the first flange (311).

5. The moving mechanism for household appliances according to claim 1, characterized in that, The fixed plate (12) is connected to the main body (11) of the moving mechanism by fasteners (13) or is integrally formed.

6. The moving mechanism for household appliances according to claim 1, characterized in that, The bottom of the household appliance to which the moving mechanism is applied has a base plate (31) with an opening (312) in the middle. The fixing plate (12) is closer to the outside of the base plate (31) than the main body (11) of the moving mechanism, so that the foot is connected to the base plate (31) and the main body (11) of the moving mechanism can partially cover the opening (312).

7. The moving mechanism for a household appliance according to any one of claims 1 to 6, characterized in that, The main body (11) of the moving mechanism has at least two fixed plates (12) spaced apart along the first direction on the same side, one of the fixed plates (12) is used to install a fixed foot, and the remaining at least one fixed plate (12) is used to install a hydraulic foot. The orthographic projection of the fixed foot and the hydraulic foot along the first direction does not overlap with each of the roller assemblies (111).

8. The moving mechanism for household appliances according to claim 7, characterized in that, The number of the moving mechanisms is at least two, and the hydraulic feet on at least two of the moving mechanisms are interconnected; and / or At least one of the fixing plates (12) on both sides of the first direction is provided with a strip hole (123) extending along the first direction, so that the corresponding fixing foot or the hydraulic foot can pass through the strip hole (123) and be fixed to the bottom of the household appliance.

9. The moving mechanism for household appliances according to claim 1, characterized in that, The main body of the mobile mechanism (11) includes: The base (112) has the fixing plate (12) disposed on the side of the base (112); A movable support (113) is movably disposed at the bottom of the base (112); A handle (114) is rotatably connected to the base (112) and drively connected to the movable bracket (113) to selectively move the movable bracket (113) along a first moving direction and a second moving direction opposite to the first moving direction. When the movable bracket (113) is moved along the first moving direction by the handle (114), it can drive each of the roller assemblies (111) to descend and support the household appliance. When the movable bracket (113) is moved along the second moving direction by the handle (114), it allows each of the roller assemblies (111) to rise and retract.

10. The moving mechanism for a household appliance according to claim 9, characterized in that, Each of the roller assemblies (111) includes a roller (1111) and a connecting arm (1112). One end of the connecting arm (1112) is rotatably connected to the base (112) via a connecting shaft (115), and the other end of the connecting arm (1112) is rotatably connected to the roller (1111). The movable support (113) has a push structure corresponding to each of the roller assemblies (111). Each push structure is used to push the corresponding roller assembly (111) down when the movable support (113) moves along the first moving direction, and to abut against the corresponding roller assembly (111) when the roller assembly (111) is down.

11. The moving mechanism for a household appliance according to claim 10, characterized in that, The main body (11) of the moving mechanism also includes a single torsion spring (116) or a double torsion spring, which is sleeved on the connecting shaft (115) and abuts against the moving bracket (113).

12. The moving mechanism for a household appliance according to claim 9, characterized in that, The bottom of the household appliance to which the moving mechanism is applied has a second flange (33), and the top of the base (112) has a second groove for accommodating the second flange (33).

13. The moving mechanism for a household appliance according to claim 12, characterized in that, A protrusion (1121) is formed at the bottom of the base (112) corresponding to the second groove. The movable bracket (113) has a movable body (1131), a first bent section and a second bent section (1132). The movable body (1131) is attached to the bottom of the base (112). The first bent section is formed by bending downward from the movable body (1131). The second bent section (1132) is formed by bending from the first bent section toward the protrusion (1121). The second bent section (1132) is connected to the handle (114) in a transmission manner.

14. A household appliance system, characterized in that, The household appliance system includes the household appliance and the moving mechanism as described in any one of claims 1 to 13, wherein the bottom of the household appliance has a foot, the foot is disposed on the fixing plate (12) of the moving mechanism and is connected to the bottom of the household appliance.

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