Moving mechanism for a household appliance and household appliance system

Abstract

The application relates to a moving mechanism of a household appliance, and particularly provides a moving mechanism of a household appliance and a household appliance system, which aims to solve the problem that a user is easily injured when operating a folding handle on the moving mechanism at the bottom of the household appliance. For this purpose, the moving mechanism comprises a base body, a roller assembly, a moving support and a folding handle, the roller assembly is arranged on the bottom of the base body in a liftable manner, the moving support is arranged on the bottom of the base body in a movable manner, the moving support is provided with a pushing structure, the pushing structure is used for pushing the roller assembly to descend when the moving support moves in a first direction, so that the roller assembly supports the household appliance, the folding handle is used for selectively driving the moving support to move in the first direction or in a reverse direction, and the folding handle comprises a first handle part and a second handle part which can be locked in an unfolded state.

Description

Technical Field

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

[0002] With the trend towards smarter and more convenient home appliances, more and more appliances, such as refrigerators, washing machines, and ovens, are being equipped with moving mechanisms to improve the ease of handling and repositioning for users. Common moving mechanisms typically include a base, a caster assembly at the bottom of the base, and an operating component for raising and lowering the caster assembly. To save space and facilitate storage, some moving mechanisms are equipped with a folding handle. Users can easily lower the caster assembly by operating the folding handle, thus enabling the repositioning of the home appliance.

[0003] However, existing folding handles still have certain shortcomings in practical use. When a user holds a folding handle, if the handle suddenly folds due to external force or insufficient structural stability, it may cause crushing injury to the user's hand. This safety hazard not only affects the user experience but also limits the further promotion of folding handles in the moving mechanisms of household appliances.

[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 users are prone to hand injuries when operating the folding handle on the moving mechanism at the bottom of household appliances.

[0006] In a first aspect, this application provides a moving mechanism for a household appliance, comprising: a base body; a roller assembly vertically and elliptically disposed at the bottom of the base body; a moving bracket movably disposed at the bottom of the base body, the moving bracket having a pushing structure for pushing the roller assembly downward when the moving bracket moves in a first direction, so that the roller assembly supports the household appliance; and a folding handle for selectively moving the moving bracket in the first direction or in the opposite direction, comprising a foldable first handle and a second handle, the first handle and the second handle being lockable in an unfolded state.

[0007] In the above-mentioned optional technical solutions for the moving mechanism of household appliances, the first means and the second means are locked together by a snap-fit ​​connection.

[0008] In the above-mentioned optional technical solution for the moving mechanism of household appliances, the first handle is provided with a first shaft, and the second handle is provided with a shaft groove. The first shaft is rotatably disposed in the shaft groove. The first shaft can move to a first position and a second position in the shaft groove. When the first shaft moves to the first position, the first handle and the second handle are engaged. When the first shaft moves to the second position, the first handle and the second handle are disengaged.

[0009] In the above-mentioned optional technical solution for the moving mechanism of household appliances, the first handle is provided with a protrusion, and when the first shaft moves to the first position, the protrusion is engaged in the shaft groove.

[0010] In the above-mentioned optional technical solution for the moving mechanism of household appliances, the second means includes a connecting plate, a first side plate and a second side plate. The first side plate and the second side plate are both bent from the connecting plate to the same side so that the first side plate, the connecting plate and the second side plate surround to form a receiving groove. The receiving groove is used to receive the first means. The first side plate and the second side plate are both provided with the shaft groove. The first shaft is provided in the shaft groove of the first side plate and the second side plate.

[0011] In the above-mentioned optional technical solution for the moving mechanism of household appliances, the first side plate is located below the second side plate, a gasket is sleeved on the first shaft, and the gasket is pressed between the first handle and the first side plate.

[0012] In the above-mentioned optional technical solutions for the moving mechanism of household appliances, the second handle is hinged to the base body, one of the second handle and the moving bracket is provided with a second shaft, the other of the second handle and the moving bracket is provided with a guide hole, the second shaft is rotatably disposed in the guide hole, and is movable in the guide hole; and / or the second handle is provided with an extension arm, the extension arm is provided with a first locking structure, the moving bracket is provided with a second locking structure, and when the folding handle drives the moving bracket to move along the first direction and causes the roller assembly to support the household appliance, the first locking structure and the second locking structure are engaged; and / or when the first handle and the second handle are in the folded state, the length direction of the second handle is consistent with the width of the base body, the length direction of the first handle is consistent with the length direction of the base body, and the first handle is located on the side of the second handle closer to the moving bracket in the width direction.

[0013] In the above-mentioned optional technical solution for the moving mechanism of household appliances, the base body is provided with a first mounting plate at a first end in the length direction, the first mounting plate is located on one side in the width direction of the base body, and the first mounting plate is used to install the first foot of the household appliance; the first mounting plate is inclined upward from the base body; and / or a vibration damping member is provided between the folding handle and the bottom of the household appliance.

[0014] In the above-mentioned optional technical solution for the moving mechanism of household appliances, the moving mechanism further includes an adjusting body and a second mounting plate disposed on the adjusting body, the second mounting plate being used to mount the second foot of the household appliance; the adjusting body is adjustable in position along the length direction of the base body on the base body, so that the second mounting plate can extend and retract relative to the second end of the base body.

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

[0016] Those skilled in the art will understand that the moving mechanism for household appliances of this application includes a base body, a roller assembly, a moving bracket, and a folding handle. The roller assembly is vertically and vertically disposed at the bottom of the base body, and the moving bracket is movably disposed at the bottom of the base body. The moving bracket has a pushing structure for pushing the roller assembly down when the moving bracket moves in a first direction, so that the roller assembly supports the household appliance. The folding handle is used to drive the moving bracket to selectively move in the first direction or in the opposite direction. The folding handle includes a foldable first means and a second means, which can be locked in the unfolded state.

[0017] The folding handle employs a first and second foldable mechanism, which can be locked when unfolded, ensuring stability during use and preventing sudden folding even under external impact, thus avoiding crushing injuries to the user's hands. Specifically, when the first and second mechanisms are connected as a single unit, the roller assembly descends and supports the appliance after the folding handle moves the movable bracket in a first direction. Pushing the appliance allows it to be moved via the rollers in the assembly. When the folding handle moves the movable bracket in the opposite direction, the roller assembly rises, allowing the appliance's feet to support it. Attached Figure Description

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

[0019] Figure 1This is a bottom view of the folded state of the moving mechanism of this application;

[0020] Figure 2 This is a bottom view of the mobile mechanism of this application in its deployed state;

[0021] Figure 3 This is a front view of the mobile mechanism of this application in its deployed state when unlocked;

[0022] Figure 4 This is a front view of the mobile mechanism of this application when it is locked in the deployed state;

[0023] Figure 5 This is a perspective view of the mobile mechanism of this application.

[0024] Explanation of reference numerals in the attached figures:

[0025] 110 - Base body; 120 - First mounting plate; 131 - Adjustment body; 132 - Second mounting plate; 143 - Protrusion; 200 - Roller assembly; 210 - Roller; 220 - Connecting arm; 230 - Third shaft; 240 - Fourth shaft; 300 - Pushing structure; 400 - Moving bracket; 410 - Bending section; 411 - Guide hole; 412 - Second snap-fit ​​structure; 420 - Pushing section; 430 - First upright plate; 440 - Second upright plate; 500 - Folding handle; 510 - First handle; 511 - First shaft; 512 - Protrusion; 520 - Second handle; 521 - Shaft groove; 522 - Second shaft; 523 - Extension arm. Detailed Implementation

[0026] 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.

[0027] 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 a household appliance in its use state, based on its height. "Front" refers to the direction near the door, based on the horizontal direction of the household appliance in its use state, and "rear" refers to the direction near its back panel, based on the horizontal direction of the household appliance in its use state. The width direction is the direction from one side panel to the other of the household appliance. 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.

[0028] To address the issue of hand injuries caused by folding handles on the bottom moving mechanisms of home appliances. For example... Figures 1 to 5 As shown, this application provides a moving mechanism for a household appliance, including a base body 110, a roller assembly 200, a moving bracket 400, and a folding handle 500. The roller assembly 200 is vertically and vertically disposed at the bottom of the base body 110, and the moving bracket 400 is movably disposed at the bottom of the base body 110. The moving bracket 400 has a pushing structure 300, which is used to push the roller assembly 200 down when the moving bracket 400 moves in a first direction, so that the roller assembly 200 supports the household appliance. The folding handle 500 is used to drive the moving bracket 400 to selectively move in the first direction or in the opposite direction. The folding handle 500 includes a foldable first means 510 and a second means 520, which can be locked in the unfolded state.

[0029] The folding handle 500 employs a foldable first means 510 and a foldable second means 520. Both means 510 and 520 can be locked when unfolded, ensuring the folding handle 500 remains stable during use and will not fold suddenly even under external impact, thus avoiding squeezing injuries to the user's hands. Specifically, after the first means 510 and the second means 520 are connected as a whole, when the folding handle 500 moves the movable support 400 along a first direction, the roller assembly 200 descends and supports the household appliance. Pushing the household appliance allows it to be moved via the rollers 210 in the roller assembly 200. When the folding handle 500 moves the movable support 400 in the opposite direction to the first direction, the roller assembly 200 rises, allowing the feet at the bottom of the household appliance to support it.

[0030] The household appliances in this application can be clothing processing equipment such as washing machines, washer-dryer combos, dryers or shoe washing machines, or refrigerators, etc. This application does not limit the specific form of the household appliances.

[0031] As one possible implementation, the first means 510 and the second means 520 are locked by snapping together, such as by snapping together by protrusions and slots, or by snapping together by claws and hooks, or by snapping together by interference fit, etc.

[0032] Furthermore, the first handle 510 is provided with a first shaft 511, and the second handle 520 is provided with a shaft groove 521. The first shaft 511 is rotatably disposed in the shaft groove 521. The first shaft 511 can move to a first position and a second position in the shaft groove 521. When the first shaft 511 moves to the first position, the first handle 510 and the second handle 520 are engaged. When the first shaft 511 moves to the second position, the first handle 510 and the second handle 520 are disengaged. The shaft groove 521 can be elongated.

[0033] The dual-state switching of the folding handle 500 is achieved through the rotational and sliding engagement of the first shaft 511 on the first means 510 and the shaft groove 521 on the second means 520. When the first shaft 511 moves along the shaft groove 521 to the first position, the first means 510 and the second means 520 form a locking engagement, ensuring that the folding handle 500 maintains a rigid connection in the unfolded state, providing stable operational support. When the first shaft 511 moves along the shaft groove 521 to the second position, the two sections disengage, releasing the lock and allowing the handle to fold freely to save space, thus facilitating storage and packaging. This design simultaneously meets the dual requirements of structural compactness (folded state) and operational reliability (unfolded locking).

[0034] In one possible implementation, the first handle 510 has a protrusion 512. When the first shaft 511 moves to the first position, the protrusion 512 engages with the shaft groove 521. This eliminates the need for additional independent slots or other structures, allowing the shaft groove 521 to simultaneously serve as a rotation fulcrum, a slide rail, and a locking mechanism. When the first shaft 511 moves to the first position, the protrusion 512 directly engages with the inner wall of the shaft groove 521 to achieve locking; when it moves to the second position, the protrusion 512 disengages from the shaft groove 521 to unlock and fold, greatly simplifying the structure of the folding handle 500.

[0035] It should be noted that although this application describes a first means 510 having a protrusion 512 that engages with the shaft groove 521 when the first shaft 511 moves to the first position, this is not intended to limit the scope of protection of this application. As long as the first means 510 and the second means 520 can engage when the first shaft 511 moves to the first position, the specific arrangement can be adjusted. For example, the second means 520 may have a groove independent of the shaft groove 521, and the protrusion 512 on the first means 510 may engage with the groove when the first shaft 511 moves to the first position. Alternatively, the first means 510 may have a groove, and the second means 520 may have a protrusion 512, and the protrusion 512 on the second means 520 may engage with the groove on the first means 510 when the first shaft 511 moves to the first position. These possible adjustments do not deviate from the principles of this application and are all within the scope of protection of this application.

[0036] In one possible implementation, the second means 520 includes a connecting plate, a first side plate, and a second side plate. Both the first and second side plates are bent from the connecting plate towards the same side, forming a receiving groove to accommodate the first means 510. Both the first and second side plates are provided with shaft grooves 521, and a first shaft 511 is disposed within these grooves. The shaft grooves 521 of the two side plates can be aligned to ensure a stable movement trajectory for the first shaft 511 and prevent jamming. Furthermore, both ends of the first shaft 511 extend beyond the shaft grooves 521 of the two side plates, and each end of the first shaft 511 has a limiting cap to prevent it from dislodging from the shaft grooves 521.

[0037] When the folding handle 500 is unfolded, the first means 510 extends into the receiving groove, the first shaft 511 in the shaft groove 521 moves to the first position, and the protrusion 512 locks with the shaft groove 521, ensuring the handle remains stable during use. When it needs to be folded away, the first means 510 is pulled outward to move the first shaft 511 to the second position, releasing the locking state and allowing it to be folded freely. In addition, the U-shaped structure of the receiving groove also guides the sliding and rotation of the first means 510, ensuring the accuracy of locking and unlocking actions.

[0038] In one possible implementation, the first side plate is located below the second side plate, and a gasket is fitted onto the first shaft 511, pressing the gasket between the first handle 510 and the first side plate. The gasket prevents the first handle 510 from tilting downwards due to gravity, thereby preventing the folding handle 500 from contacting the ground.

[0039] In one possible implementation, the second means 520 is hinged to the base body 110. One of the second means 520 and the movable bracket 400 is provided with a second shaft 522, and the other is provided with a guide hole 411 (which can be an elongated hole). The second shaft 522 is rotatably disposed in the guide hole 411 and is movable within the guide hole 411. Specifically, the second means 520 has a first connecting portion and a second connecting portion arranged in a cross configuration. The first connecting portion is hinged to the base body 110, and the second connecting portion is fixedly connected to the second shaft 522. The end of the movable bracket 400 is provided with a guide hole 411, and the second shaft 522 is rotatably disposed in the guide hole 411 and is movable within the guide hole 411. A limiting block may be provided at the end of the second shaft 522 to prevent it from dislodging from the guide hole 411.

[0040] It should be noted that the above configuration is not restrictive. As long as the folding handle 500 can selectively move the movable support 400 along the first direction or in the opposite direction, the specific configuration can be adjusted. For example, the second handle 520 can be hinged to the base body 110 and connected to the movable support 400 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 400, 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 second handle 520. These possible adjustments do not deviate from the principles of this application and are all within the scope of protection of this application.

[0041] In one possible implementation, the second handle 520 is provided with an extension arm 523, which has a first locking structure. The movable support 400 has a second locking structure 412. When the folding handle 500 moves the movable support 400 along a first direction and the roller assembly 200 supports the household appliance, the first locking structure engages with the second locking structure 412. For example, after the folding handle 500 rotates clockwise to its position, the roller assembly 200 supports the household appliance, and the first locking structure engages with the second locking structure 412. After the folding handle 500 rotates counterclockwise, the first locking structure disengages from the second locking structure 412. In this way, when the folding handle 500 moves the movable support 400 along the first direction and the roller assembly 200 descends to support the household appliance, because the folding handle 500 is engaged with the movable support 400, it can prevent the roller assembly 200 from being pressed upwards and retracted due to the weight of the household appliance.

[0042] The first snap-fit ​​structure can be a hook, and the second snap-fit ​​structure 412 can be a slot; or the first snap-fit ​​structure can be a shaft, and the second snap-fit ​​structure 412 can be a hole, with the shaft and hole able to be interference-fitted. Only the first snap-fit ​​structure and the second snap-fit ​​structure 412 can snap-fit ​​together, and any adjustments to their specific forms do not deviate from the principles of this application and are all within the protection scope of this application.

[0043] In one possible implementation, when the first handle 510 and the second handle 520 are folded, the length direction of the second handle 520 is consistent with the width of the base body 110, and the length direction of the first handle 510 is consistent with the length direction of the base body 110. The first handle 510 is located on the side of the second handle 520 closer to the movable bracket 400 in the width direction. Preferably, the angle between the first handle 510 and the second handle 520 after folding is 90°. The design of the second handle 520 being positioned along the width direction of the base body 110 and the first handle 510 being positioned along the length direction of the base body 110 and close to the movable bracket 400 ensures that the folding handle 500 fits tightly against the base body 110, making full use of the narrow space around the movable mechanism. This results in a more compact overall profile after folding, effectively reducing the risk of bumps and knocks caused by the protruding folding handle 500 during daily storage of household appliances, as well as during handling and transportation.

[0044] As one possible implementation, a vibration damping element is provided between the folding handle 500 and the bottom of the household appliance. The vibration damping element is used to prevent rigid contact between the folding handle 500 and the bottom of the household appliance when vibrations occur during use, thereby reducing vibration and noise. The vibration damping element can be made of rubber, sponge, or silicone, etc., and this application does not limit its specific form.

[0045] The following is a detailed description of the household appliance and the moving mechanism at the bottom of the household appliance.

[0046] Specifically, refer to Figure 5The moving mechanism of this application includes a base, which includes the aforementioned base body 110 and a first mounting plate 120. The first mounting plate 120 is disposed at the first end of the base body 110 in the length direction. The base body 110 is configured as a guide groove (the guiding direction of the guide groove is consistent with the length direction of the base body 110). The roller assembly 200 includes a roller 210 and a connecting arm 220. One end of the connecting arm 220 is rotatably connected to the side wall of the guide groove, and the other end of the connecting arm 220 is rotatably connected to the roller 210. The moving bracket 400 can... The movable support 400 is movably disposed in the guide groove. It includes a pushing section 420, with a first upright plate 430 and a second upright plate 440 on both sides in the width direction. The pushing section 420, the first upright plate 430, and the second upright plate 440 form a movable groove, wherein the movable groove is in contact with each surface of the guide groove; that is, the pushing section 420 is in contact with the bottom of the guide groove, and the first upright plate 430 and the second upright plate 440 are in contact with the side walls of the guide groove, respectively. This ensures stable movement of the movable support 400 and prevents wobbling. The pushing structure 300 of this application is disposed on the pushing section 420. The pushing structure 300 is used to push the roller assembly 200 downwards and abuts against the roller assembly 200 when it descends, thereby enabling the roller assembly 200 to support the household appliance and facilitating movement of the appliance by rotating the rollers 210.

[0047] In the above description, the first mounting plate 120 and the base body 110 are preferably integrally formed. Furthermore, 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 forming the aforementioned guide groove. The guide groove is preferably a U-shaped groove, but it can also be replaced with a guide groove that is closed at one end and open at the other end in the length direction, etc. These possible adjustments do not deviate from the principles of this application and are all within the protection scope of this application.

[0048] Possibly, the roller assembly 200 also includes a third shaft 230 and a fourth shaft 240. Rollers 210 are rotatably connected to opposite ends of the third shaft 230. There are two connecting arms 220, each with a first shaft hole at one end. The portion of the third shaft 230 between the two rollers 210 is fixed within the first shaft holes of the two connecting arms 220. The two connecting arms 220 are spaced apart from the third shaft 230, and each has a second shaft hole at the end away from the first shaft hole. The fourth shaft 240 is rotatably connected within each of these second shaft holes. The first vertical plate 430 and the second vertical plate 440 of the moving groove each have a second strip-shaped hole arranged along the moving direction. The two ends of the fourth shaft 240 pass through the second strip-shaped holes on both sides and are fixedly connected to the sidewalls of the guide groove to ensure smooth movement of the moving bracket 400.

[0049] It should be noted that the above description is merely illustrative, and its specific configuration can be adjusted as long as the roller assembly 200 can be raised and lowered. For example, one or more rollers 210 can be provided, and "rollers 210 are rotatably connected to the opposite ends of the third shaft 230" can be replaced with "rollers 210 are rotatably connected to the middle of the third shaft 230". In this case, the first shaft holes of the two connecting arms 220 can be fixed at both ends of the third shaft 230, and the rollers 210 can be located in the guide groove. As another example, the fourth shaft 240 is fixed in the second shaft hole, and the fourth shaft 240 is rotatably connected to the side of the guide groove. Furthermore, the number of connecting arms 220 can be set to one or more.

[0050] Possibly, the bottom of the household appliance in this application has a protruding extension edge. This extension edge can be located near the appliance's door, i.e., the front side, and extends along the width of the appliance. The extension edge can be an extension edge extending downwards from the bottom side of the front panel. The extension edge is fixedly connected to the appliance's base plate; for example, the base plate may have a flange, which is then attached to the extension edge and secured by bolts, welding, or other methods. This enhances the structural strength and overall stability of the appliance. The extension edge can also protect components at the bottom of the appliance, effectively preventing damage or scratches from external objects, and can also serve as a decorative panel.

[0051] Possibly, the base body 110 has a groove on the top surface of the same side as the first mounting plate 120 in the length direction, which is provided along the width direction of the base body 110. The groove extends towards the bottom surface of the base body 110 to form a protrusion 143 on the bottom surface of the base body 110. The groove passes through both ends in the width direction of the household appliance to accommodate the extended edge described above, so as to ensure that the base is installed horizontally at the bottom of the household appliance and to avoid the movement mechanism being obstructed due to tilting or instability. In addition, the movable bracket 400 of this application also has a bending section 410, which includes a first extension section and a second extension section. The first extension section bends away from the push section 420 in a direction away from the base, and the second extension section bends from the first extension section in a direction toward the protrusion 143 and beyond the protrusion 143. The second handle 520 and the part of the second extension section that extends beyond the protrusion 143 are connected through a second shaft 522 and a guide hole 411 to facilitate the user to hold the folding handle 500 from the front of the household appliance, thereby driving the movable bracket 400 to move back and forth.

[0052] 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, the folding handle 500 is unfolded and locked, and then 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 300 on the pushing section 420 starts to push the roller assembly 200, so that the connecting arm 220 of the roller assembly 200 rotates away from the base body 110. The roller 210 lowers and contacts the ground. The pushing structure 300 abuts against the roller assembly 200. The roller assembly 200 supports the household appliance, so that the household appliance can be moved by the roller 210 in the roller assembly 200. When the roller assembly 200 needs to be raised and retracted, the folding handle 500 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, pushing the structure 300 to move 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 is in contact with the ground.

[0053] This application does not limit the specific form of the driving structure 300. Two possible implementation methods are described below.

[0054] In a first possible implementation, the pushing structure 300 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 400, so that when the movable support 400 moves in a first direction, the inclined surface can extend into the gap between the roller assembly 200 and the movable support 400, thereby guiding the roller assembly 200 to rotate away from the movable support 400. When the movable support 400 moves in the opposite direction, the wedge-shaped block moves away from the roller assembly 200, allowing the roller assembly 200 to retract.

[0055] In a second possible implementation, the pushing structure 300 is configured as an inclined groove on the first upright plate 430 and the second upright plate 440. The opposite side walls of the guide groove each have a vertically oriented notch. The two ends of the third shaft 230 are respectively located in the inclined grooves on both sides and in the notches on both sides of the guide groove. In this case, the roller 210 can be located outside the guide groove, and the connecting arm 220 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 when the moving support 400 moves in the first direction, until the roller 210 contacts the ground. When the moving support 400 moves in the opposite direction, the inclined walls of the inclined groove move away from the roller assembly 200, allowing the roller assembly 200 to retract. The purpose of the notches is not only to avoid misalignment but also to provide a precise movement path for the third shaft 230, effectively preventing offset and misalignment caused by rotational loosening, thereby ensuring the smoothness and stability of the roller assembly 200's unfolding and retracting actions.

[0056] It is understandable that the sidewall of the guide groove has a vertically oriented notch, meaning the notch extends from the side of the guide groove near its bottom to the side away from the bottom. In other words, after the moving mechanism is installed at the bottom of the household appliance, and the appliance is in its normal placement state, the notch is vertically oriented.

[0057] As one possible implementation, the first mounting plate 120 is also located on one side of the base body 110 in the width direction. The first mounting plate 120 is preferably integrally formed with the base body 110, and the first mounting plate 120 has a first mounting hole for mounting a first foot of a household appliance.

[0058] The first foot can be the front foot, and the first mounting plate 120 can be located between the protrusion 143 and the guide groove, so that the first foot is located inside the extension edge, so that the extension edge can effectively protect the first foot and avoid damage to the front first foot due to bumps.

[0059] In one possible implementation, the first mounting plate 120 is inclined upwards from the base body 110. During the connection between the first mounting plate 120 and the bottom of the household appliance, before the first mounting plate 120 is fully installed, the base body 110 is already in contact with the bottom of the household appliance on the other side of the width direction of the first mounting plate 120. As the contact area between the first mounting plate 120 and the bottom of the household appliance increases, the upwardly inclined and bent structure is gradually flattened or tends to flatten, forcing the base body 110 to fit and abut against the bottom of the household appliance. The abutting force makes it difficult for the base body 110 to separate from the bottom of the household appliance and form a gap during use, thereby avoiding additional vibration and noise caused by the vibration of the household appliance during operation, which could lead to collisions between the base and the bottom of the household appliance and / or the ground.

[0060] Furthermore, the bottom of the first mounting plate 120 has reinforcing ribs, and the first mounting plate 120 slopes upward from the reinforcing ribs to its end. This improves the structural strength of the first mounting plate 120.

[0061] Possibly, the moving mechanism of this application also includes an adjusting member, which includes an adjusting body 131 and a second mounting plate 132 disposed on the adjusting body 131. The second mounting plate 132 is used to mount the second foot of the household appliance. The adjusting body 131 is movably disposed on the base body 110 along the length direction of the base body 110, so that the second mounting plate 132 can extend and retract relative to the second end of the base body 110 (the second end and the first end are opposite ends in the length direction of the base body 110). The second mounting plate 132 has a second mounting hole, which can be an elongated hole or a circular hole along the length direction of the base body 110. The second foot passes through the second mounting hole and is mounted on the bottom of the household appliance.

[0062] When the moving mechanism is applied to household appliances with a shallow depth, the adjusting body 131 can be moved inwards towards the base body 110, causing the second mounting plate 132 to retract to its initial position. This initial position may or may not protrude from the second end of the base body 110; this application does not impose any limitations on this. For household appliances with a greater depth, the second mounting plate 132 is fully extended by moving the adjusting body 131 outwards. This provides an extended support surface that matches the size of the large household appliance. In summary, the above-described configuration is not only suitable for the embedded installation of household appliances of different sizes, but also provides stable support for the household appliance through the reasonable installation position of the second foot. Furthermore, by integrating the moving mechanism into the second foot of the household appliance, no additional structural installation is required, thereby improving space utilization, simplifying the manufacturing process, and enhancing installation convenience.

[0063] The second base can be an existing rear base of the household appliance, and the first base can be an existing front base of the household appliance, thus fixing the moving mechanism through the existing bases of the household appliance. In other words, the moving mechanism of this application can not only be fixed through the existing bases of the household appliance, but is also applicable to different models of household appliances.

[0064] In one possible implementation, each side wall of the guide groove has a first strip-shaped hole arranged along the length of the guide groove. An adjusting body 131 is located at the bottom of the base body 110. The adjusting body 131 has a sliding groove, and a second mounting plate 132 is formed on the side wall of the sliding groove. The guide groove is located within the sliding groove, and connecting shafts are connected to the side walls of the sliding groove, with the connecting shafts located in the first strip-shaped holes on the side walls of the guide groove. Further, both the first upright plate 430 and the second upright plate 440 have a third strip-shaped hole arranged along the length of the guide groove. The third strip-shaped hole overlaps with the first strip-shaped hole, and the connecting shaft is also located in both the first and third strip-shaped holes.

[0065] The adjusting body 131 is located at the bottom of the base body 110, preventing it from becoming a protruding part at the top of the base body 110, thus ensuring the horizontal installation of the moving mechanism. Furthermore, a double-layer guiding system is formed through the nested cooperation of the sliding groove and the guide groove. The sliding trajectory of the connecting shaft in the first strip hole strictly limits the movement direction of the adjusting body 131, ensuring that it always moves in a straight line during the base length adjustment process, avoiding deviation or torsion. The symmetrical tracks formed by the first strip holes on both sides ensure that the adjusting body 131 is subjected to uniform force during extension and retraction, effectively preventing structural jamming.

[0066] The number of adjusting bodies 131 can be one or more. When there are multiple adjusting bodies 131, they are telescopically connected. One adjusting body 131 is fixedly or slidably connected to the base body 110, and the other adjusting body 131 is connected to the second mounting plate 132 (e.g., integrally formed). In this case, the adjusting body 131 can be located on the top, bottom, or any side of the base body 110 in the width direction. The adjusting body 131 can be a slide groove, and the base body 110 is slidably connected in the slide groove. The slide grooves can be nested and slidably connected. Specifically, the slide grooves can be slidably connected through elongated holes and shafts, or through guide rails and guide grooves, etc. Of course, this is not a limitation. The adjustment body 131 can be in other shapes. For example, the adjustment body 131 can be a straight plate, which can be set at the top or bottom of the base body 110. As long as the adjustment bodies 131 can be telescopically arranged, one side of the adjustment body 131 is fixedly or slidably connected to the base body 110, and the other side of the adjustment body 131 is connected to the second mounting plate 132, these adjustments do not deviate from the principle of this application and are all within the protection scope of this application.

[0067] It is possible that both the second and first feet are fixed feet, facilitating upgrades to existing household appliances. A fixed foot, as understood, refers to a non-retractable foot. Specifically, a 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 a corresponding mounting plate and connects to the bottom of the household appliance. 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 have a snap-fit ​​mechanism. The bottom of the household appliance has a slot, and a secure connection is achieved by the snap-fit ​​mechanism engaging with the slot.

[0068] Alternatively, the second and / or first foot can be telescopic feet, which are used to automatically level the household appliance. When the user needs to move the appliance, the moving mechanism can be lowered to move the appliance. 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 to seamlessly switch between moving and foot-supported states.

[0069] Specifically, the second foot is a telescopic foot, which can be connected to the second mounting hole via a screw, while the first foot is a fixed foot. This ensures that after the moving mechanism is installed, the fixed foot is located on the front of the appliance, and the telescopic foot is located on the rear. During use, the fixed foot at the front of the appliance provides greater stability, reducing the risk of damage from impacts. The telescopic foot at the rear offers flexibility, allowing the height to be adjusted as needed, ensuring stable operation of the appliance in various scenarios.

[0070] This application has 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 and can both be arranged along the front-to-back direction of the household appliance. Each moving mechanism can have multiple roller assemblies 200; two are used as an example. The two roller assemblies 200 are spaced apart and are rotatably connected to the guide groove via connecting arms 220. The pushing section 420 has a pushing structure 300 at the corresponding position of each roller assembly 200.

[0071] As one possible implementation, the base body 110 of this application has a protrusion on its top, which is used to fill the gap between the base and the bottom of the household appliance. After the moving mechanism is installed on the bottom of the household appliance, since the bottom of the household appliance may not be flat, there may be a gap between the base body 110 and the bottom of the household appliance, and the connection between the adjusting body 131 and the base body 110 is also relatively weak, which may cause the moving mechanism to deform due to the force of the household appliance. Therefore, this application fills the gap between the base body 110 and the bottom of the household appliance with a protrusion. The base bears this force through the protrusion, which is equivalent to the base body 110 bearing the force entirely, rather than the adjusting part bearing the force. Even if the adjusting part is designed to be fragile, the moving mechanism will not deform.

[0072] As one possible implementation, the protrusion is projected orthogonally onto the area between the connection position of the rear roller assembly 200 on the base body 110 and the push structure 300, that is, the area between the fourth shaft 240 and the push structure 300. In practical applications, the applicant found that the rear roller assembly 200 is subjected to greater forces. Placing the protrusion at the rear roller assembly 200 can effectively prevent deformation of the base and improve the stability of the moving mechanism. Furthermore, a protrusion is also provided at the front roller assembly 200, with the protrusion projected orthogonally onto the area between the connection position of the front roller assembly 200 on the base body 110 and the push structure 300, to further prevent deformation of the moving mechanism.

[0073] The protrusion can be integrally formed with the base body 110 or it can be separate from the base body 110. When the protrusion and base body 110 are separate structures, the protrusion can be fixedly connected to the base body 110 by means of bonding, welding, or bolting. When the protrusion and base body 110 are integrally formed, they can be formed by stamping. Possibly, when the protrusion and base body 110 are separate structures, a mounting groove is provided on the top surface of the base body 110, and the protrusion is installed in the mounting groove. The protrusion can be bonded to the base body 110, and felt can be placed on the top surface to achieve vibration damping. The protrusion 512 structure can be a hollow structure, thereby improving its resistance to deformation and vibration.

[0074] Possibly, a torsion spring is fitted onto the fourth shaft 240, with both ends of the torsion spring abutting against the movable bracket 400. For example, the two ends of the torsion spring extend out and abut against the movable bracket 400 on opposite sides of the fourth shaft 240. Since the torsion spring is fitted onto the fourth shaft 240 connected to the guide groove, and its two ends abut against the movable bracket 400, the torsion spring can apply force to both the fourth shaft 240 and the movable bracket 400 simultaneously, thereby achieving the pressing of the movable groove and the guide groove and avoiding problems such as resonance noise.

[0075] It should be noted that although this application uses the example of a torsion spring mounted on the fourth shaft 240, this is not intended to limit the scope of protection of this application. The torsion spring can be replaced with other pressing structures, as long as they can abut against the movable support 400. Changes in their specific forms do not deviate from the principles of this application. For example, the pressing structure can be configured as an elastic hollow cylinder that abuts against the movable support 400. These adjustments do not deviate from the principles of this application and are all within the scope of protection of this application.

[0076] The following describes possible implementation methods for telescopic feet.

[0077] 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 132 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.

[0078] 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.

[0079] 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.

[0080] It should be noted that although this application describes the telescopic foot using a hydraulic foot as an example, 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 transmission components. The motor can be a small DC motor or a stepper motor, installed at a specific position on the bottom of the household appliance, and its stability is ensured by a fixed bracket. The output shaft of the motor is connected to the transmission components, 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, such as gyroscopes, accelerometers, etc. These sensors transmit information such as the tilt angle of the household appliance to the control circuit. The control circuit determines whether the household appliance is in a horizontal state based on the sensor signals and controls the operation of the motor to adjust the length of the foot until the household appliance is in a horizontal state.

[0081] 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, with a base body 110 mounted on the bottom of the household appliance. It should be noted that the above-described mounting on the bottom of the household appliance can refer to mounting on a base plate at the bottom of the household appliance.

[0082] 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.

[0083] For example, as an alternative implementation, the sidewall of the guide groove can protrude beyond the sidewall of the moving groove, and the fourth shaft 240 connects to the sidewall of the guide groove across the sidewall of the moving groove. In this case, the second strip hole can be omitted. Furthermore, the guide groove can have a notch on only one side, and the moving groove can have a sloping groove on only one side. One end of the third shaft 230 is located in the notch and the sloping groove, 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.

[0084] For example, as an alternative implementation, although this application describes the second means 520 connected to the movable bracket 400, this is not intended to limit the scope of protection of this application. It is sufficient as long as the folding handle 500 can selectively move the movable bracket 400 in the first direction or in the opposite direction. For example, the first means 510 is connected to the movable bracket 400. In this case, the solution of "the second means 520 is hinged to the base body 110, one of the second means 520 and the movable bracket 400 is provided with a second shaft 522, the other of the second means 520 and the movable bracket 400 is provided with a guide hole 411, and the second shaft 522 is rotatably disposed in the guide hole 411 and movablely disposed within the guide hole 411" can be replaced with "the first means is hinged to the base body, one of the first means and the movable bracket is provided with a second shaft, the other of the first means and the movable bracket is provided with a guide hole, and the second shaft is rotatably disposed in the guide hole and movablely disposed within the guide hole." Correspondingly, in the folded state, the length direction of the first means is consistent with the width of the base body, and the length direction of the second means is consistent with the length direction of the base body, with the second means located on the side closer to the movable support in the width direction of the first means. The rest of the design can remain unchanged.

[0085] For example, as an alternative implementation, the first upright plate 430 and / or the second upright plate 440 can be omitted. At least one of the following can be omitted: protrusion, gasket, groove, or vibration damper.

[0086] 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 connecting arm 220 of the roller assembly 200 is rotatably connected to the column through the fourth shaft 240.

[0087] For example, as an alternative implementation, the first and second mounting holes can be omitted. In this case, the second foot / first foot engages with and is fixed to the bottom of the household appliance via the second mounting plate 132 / first mounting plate 120. This is as long as the second mounting plate 132 is for mounting the second foot and the first mounting plate 120 is for mounting the first foot. These adjustments do not deviate from the principles of this application and are all within the scope of protection of this application.

[0088] 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: Base body (110); A roller assembly (200) is vertically and flexibly disposed at the bottom of the base body (110); A movable bracket (400) is movably disposed at the bottom of the base body (110). The movable bracket (400) has a push structure (300) for pushing the roller assembly (200) down when the movable bracket (400) moves in a first direction, so that the roller assembly (200) supports the household appliance. A folding handle (500) is used to selectively move the movable support (400) along the first direction or in the opposite direction, including a foldable first means (510) and a second means (520), wherein the first means (510) and the second means (520) can be locked in the unfolded state.

2. The moving mechanism for household appliances according to claim 1, characterized in that, The first means (510) and the second means (520) are locked together by a snap-fit ​​mechanism.

3. The moving mechanism for household appliances according to claim 2, characterized in that, The first handle (510) is provided with a first shaft (511), and the second handle (520) is provided with a shaft groove (521). The first shaft (511) is rotatably disposed in the shaft groove (521). The first shaft (511) can move to a first position and a second position in the shaft groove (521). When the first shaft (511) moves to the first position, the first handle (510) and the second handle (520) are engaged. When the first shaft (511) moves to the second position, the first handle (510) and the second handle (520) are disengaged.

4. The moving mechanism for household appliances according to claim 3, characterized in that, The first means (510) is provided with a protrusion (512), and when the first shaft (511) moves to the first position, the protrusion (512) is engaged in the shaft groove (521).

5. The moving mechanism for household appliances according to claim 3, characterized in that, The second means (520) includes a connecting plate, a first side plate and a second side plate. The first side plate and the second side plate are both bent from the connecting plate to the same side so that the first side plate, the connecting plate and the second side plate form a receiving groove. The receiving groove is used to receive the first means (510). The first side plate and the second side plate are both provided with the shaft groove (521). The first shaft (511) is provided in the shaft groove (521) of the first side plate and the second side plate.

6. The moving mechanism for household appliances according to claim 5, characterized in that, The first side plate is located below the second side plate, and a gasket is sleeved on the first shaft (511). The gasket is pressed between the first handle (510) and the first side plate.

7. The moving mechanism for a household appliance according to any one of claims 1 to 5, characterized in that, The second means (520) is hinged to the base body (110). A second shaft (522) is provided on one of the second means (520) and the movable bracket (400). A guide hole (411) is provided on the other of the second means (520) and the movable bracket (400). The second shaft (522) is rotatably disposed in the guide hole (411) and is movable within the guide hole (411); and / or The second means (520) is provided with an extension arm (523), the extension arm (523) is provided with a first locking structure, and the movable bracket (400) is provided with a second locking structure (412). When the folding handle (500) drives the movable bracket (400) to move along the first direction and causes the roller assembly (200) to support the household appliance, the first locking structure engages with the second locking structure (412); and / or When the first means (510) and the second means (520) are in the folded state, the length direction of the second means (520) is consistent with the width of the base body (110), the length direction of the first means (510) is consistent with the length direction of the base body (110), and the first means (510) is located on the side of the second means (520) closer to the movable bracket (400) in the width direction.

8. The moving mechanism for household appliances according to claim 1, characterized in that, The base body (110) has a first mounting plate (120) at its first end in the length direction. The first mounting plate (120) is located on one side of the base body (110) in the width direction. The first mounting plate (120) is used to mount the first foot of the household appliance. The first mounting plate (120) is inclined upward from the base body (110); and / or A vibration damping element is provided between the folding handle (500) and the bottom of the household appliance.

9. The moving mechanism for household appliances according to claim 1, characterized in that, The moving mechanism further includes an adjusting body (131) and a second mounting plate (132) disposed on the adjusting body (131), the second mounting plate (132) being used to mount the second foot of the household appliance; The position of the adjusting body (131) on the base body (110) along the length direction of the base body (110) is adjustable so that the second mounting plate (132) can extend and retract relative to the second end of the base body (110).

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 base body (110) is disposed at the bottom of the household appliance.

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